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某钢铁集团铁矿开采项目投资可行性研究报告

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'efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo铁矿开采项目可行性研究报告 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo1总论1.1项目背景1.1.1项目名称及性质企业名称:铁矿开采项目可研报告。企业性质:混合所有制企业(桦矿占52%,其他两家股东各占24%)。1.1.2承办单位概况某某某铁矿由通钢某某某矿业公司筹办。某某某矿业公司是通钢集团公司下属的全资子公司。该公司原称老牛沟铁矿,1991年9月开始筹建,1992年6月开始施工建设,经过两年多的建设,于1995年4月投入试生产。矿山现开采矿段为老牛沟铁矿区大西沟东山矿段,露天开采(现正在做露天转井下的深部开采设计),原设计采、选生产能力为25×104t/a,年产铁精粉10×104t/a。为适应某某某钢铁集团发展需要,桦矿从1997年开始至2003年相继对采矿、选矿生产工艺进行技术改造和扩建,使矿山生产能力和产品质量得到提高,铁精矿产量由原设计的10×104t/a,到2004年已增至18×104t/a,铁精粉品位可达67%-68%。由于矿山生产能力增加,经济效益显著提高,2004年实现利润4000万元,上缴税金2300万元。矿山现有在册职工462人,其中专业技术人员53人。矿山下设: efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo职能部门:党群工作部、综合办公室、财务部、生产技术部、供应部、机动部。基层单位:露采车间、选矿车间、机加厂、运销公司。1.1.3本报告编制依据(1)吉林省人民政府办公厅文件:二OO三年一月八日省政府专题会议纪要:《研究某某某老牛沟铁矿资源开发划分问题》。(2)通钢集团规划发展部《关于某某某矿业公司新建50万吨采选厂的情况汇报》及通钢集团董事长、总经理的批示。(3)原地质局第二地质调查所提交的《吉林省某某某市老牛沟铁矿区总结勘探报告》。(4)一九九三年鞍山矿山设计研究院提交的老牛沟矿区选矿试验报告。(5)其他有关文件。1.1.4项目提出的理由及过程某某某矿段是老牛沟铁矿区内较大的一个矿段,由于其中一条较大的矿体42-4号矿体为闪石型,当年选矿的经济技术指标不过关,被降为表外矿,故使该矿无人问津。后来某某某矿业公司委托鞍山矿山设计研究院对其做选矿试验,取得了较满意的效果。近年通钢集团的发展,对铁矿资源的需求越来越迫切,加上铁矿石价格的不断上扬,通钢集团遂向省政府申请开发某某某矿段,省政府有关领导专门召开会议,批复了通钢的申请。某某某矿业公司根据集团公司的要求,初步落实了一些外部建设条件,现委托我院编制可行性研究报告。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo1.2项目概况1.2.1建设地点拟建某某某铁矿,为老牛沟矿区的一个矿段—某某某矿段,位于老牛沟矿区北矿带中部,东有大西沟东山、稻草沟、四道沟矿段;西有头道河子、苇厦子矿段。某某某铁矿位于吉林省某某某市东约70km。矿区面积约1.6km2。地理坐标:点号XY1476080042610588247604424261047034760475426100904476130042608800547617754260876064761820426088007476182042609700行政区划隶属吉林省某某某市老金厂镇管辖。矿区交通方便。有矿山、林区公路与桦(甸)—夹(皮沟)或桦(甸)—白(山)公路相接。某某某铁矿至蛤蟆石火车站20km,至红石火车站25km。经沈吉线烟筒山火车站可达某某某、吉林、长春、沈阳等地。1.2.2建设规模与设计范围本报告推荐该矿选厂建设规模为60×104t/a(某某某矿坑内采矿 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo50~60×104t,不足时外购矿石,并争取开发头道河子矿段)。采矿分为两期,一期为460m以上,为平硐溜井开拓,电机车运输;二期为460m以下,为平硐盲竖井开拓。由于一期50104t/a时可服务13a,二期设计待进一步探矿后予以考虑,所以本次设计范围采矿为一期工程,选矿考虑矿山整个服务期(20-30a)。选厂位置选择在头道河沟坑口附近山坡上,采用三段一闭路破碎,磁滑轮干选抛尾,阶段磨矿阶段选别工艺流程,年产铁精粉17.808104t/a,供通钢烧结厂使用。1.2.3主要建设条件(1)供电该矿用电,引自某某某矿业公司变电所,矿方增容后经3km输电线路到达某某某坑口工业区,向各用户供电。(2)供水工业用新水取自选厂、尾矿库下游的头道河沟。生活用水打井解决。(3)运输林业道已通过矿区,不需再新修公路。1.2.4资金投入及效益本项目投入总资金为11959.96万元,其中固定资产投资11216.72万元,流动资金743.24万元。正常年份可实现利润总额4497万元,净利润3013万元。财务内部收益率(税后)为23.8%,投资回收期5.8年(含建设期),盈亏平衡点为28.8%,项目具有一定盈利性和抗风险能力,具有可行性。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo1.2.5主要技术经济指标序号项目单位数量备注一地质1资源/储量B+C+D104t25812设计取用储量矿石量104t1561.22品位(TFe)%31.34二采矿1生产能力104t/a502服务年限a13一期(460m以上)3采矿损失率%204采矿贫化率%175矿山工作制度日×班×时330×3×8选矿同采矿三选矿1生产能力104t/a60t/d18182原矿品位TFe%26.123精矿品位TFe%664选矿回收率%755精矿产量104t/a17.8086年排尾矿量(浆状)104t/a32.118四供电1企业总装机容量KW60542工作容量KW4465 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo3计算负荷KVA37674年耗电量107KWh1.54五供水1总用水量t/d82122选厂总用水量t/d8182其中新水t/d1636循环水t/d6054尾矿回水t/d4923生活用水量t/d30六总图1企业占地面积104m222.4七工业及民用建筑1企业总建筑面积m27933八经济分析1固定资产投资万元11216.722销售收入万元10244不含税3总成本费用万元55134利润总额万元4497正常年份5所得税万元1484正常年份6税后利润万元3013正常年份7内部收益率%23.8税后8投资回收期a5.8税后(含建设期2a)9净现值(Ic=10%)万元10608税后10盈亏平衡点%28.8正常年份 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo1.3问题与建议(1)地质报告未经套改和评审备案,矿方虽然已向省国土资源厅提出不进行套改和评审备案以及风险自担的申请,但应抓紧报批。(2)区内部分钻探工程质量较差,矿心和岩心采取率未达到规定要求,会对矿体空间位置和储量计算结果的可靠程度造成影响,对未来矿山开采所带来的风险是不可忽视的。(3)某某某矿段位于上盘的43-4矿组,均为D级矿量,为保证矿山正常生产,采矿工作均衡下降,建议对勘探程度差的各矿体先期投入一定的探矿工作。(4)生产用水水源应做水文地质工作;选厂、综合楼、尾矿坝等应做工程地质勘察。在初步设计前,应提供上述有关资料。(5)可行性研究报告完成后,初步设计前,应开展安全评价、环境评价和能源评价工作,作为初步设计的依据。2市场预测2.12005年我国铁矿石市场走势预测2004年我国钢产量达到29279.7108t,增长20%以上。2005年,世界经济继续保持回升态势,我国国民经济继续保持较快增长,固定资产投资进入正常增长区,对外贸易保持适度快速增长,为钢铁工业的发展提供了广阔的市场空间,钢铁需求依然旺盛,但增长速度有所放缓。据预计,2005年我国钢产量将突破3亿吨,同比增长11%左右;生铁产量将达2.75亿吨,同比增长12%左右;2005年需要增加铁矿石成品矿4650104t。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo从国内矿源情况看,由于前些年国内矿石市场走低,各铁矿山的建设投入较少,导致产能下降。随着国内矿石价格上涨,近两年各矿山建设投入增大,一些原来开采成本较高的矿山也将重新启动起来,并且有的企业已开始开发新矿山。2004年国内生产铁矿石3101.48104t,较上年增产5692.78104t,增长22.49%,预计2005年我国矿石产量仍将保持增长。但从另一方面看,由于我国可供新开发的矿山资源并不多,新矿山建设的同时,部分老矿山的能力将衰减,因而矿石产量增长率将会下降。预计2005年国内规模以上矿山可增加1500104t原矿,同比增长5%;地方小矿点可增加500104t,同比增长6.7%。两项合计增加铁矿石原矿2000104t,折合成品矿990104t。全年规模以上企业铁矿石原矿产量将达到3.15亿吨左右,地方小矿点的产量超过8000104t,今后国内产量进一步增长的空间将越来越小。从进口矿源情况看,随着全球钢铁产量扩大对铁矿石的消费需求持续增加,今后几年,巴西、澳大利亚、印度等大型铁矿石开采生产商相继下决心投资扩产,增加铁矿石的市场供应量。预计2005年全球可增矿石贸易量5000104t左右,贸易总量将达到6.4亿吨,按80%的增量供应我国,则2005年我国铁矿石进口量将达到2.4亿吨左右,占世界贸易总量的37.5%。根据以上初步计算,预计2005年我国铁矿石成品矿供应总量应在4.35 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo亿吨,基本可以满足国内高炉生产所需铁矿石原料,但这种供需平衡较为脆弱,其原因:一是一些民间采矿量波动性大一些,在矿石市场价格高位时,实际产量可能增加的多一些,而一旦钢铁市场出现回落,则矿石价格也将大幅回落,民间采矿量可能会迅速萎缩。二是目前运输紧张的局面包括国际海运和国内铁路运输在2005年也难有根本改变,这种紧张局面也将传递到矿石市场。三是由于2005年国内高炉产能将达到3.1亿吨,超过国内生铁可实现产量和需求量,这有可能会造成部分企业之间抬价抢矿的情况出现,有的企业可能会减产或停产。另一方面虽然国际主要矿石供应商在大规模进行扩产,但2005年矿石供应总量增幅有限,在我国进口矿石需求逐年大幅增长的情况下,外商很容易利用这点提出提价要求。从国内、国际两个市场、两种资源的情况来看,2005年我国铁矿石市场整体仍显偏紧,但紧张程度并不会超过2004年水平。其中,进口矿石价格受供应商提价及海运紧张因素影响,价格会出现一定上涨;国内矿石高层资源虽不算充足,价格总体较为坚挺,但由于受到国内钢铁市场走势影响,即钢价下滑对国内矿粉市场也将产生向下压力。所以2005年铁矿石价格将维持在2004年的总体水平上。国内铁矿石价格没有继续大幅上涨的空间,进口矿涨价的压力将主要由流通环节消化。从长期发展形势看,2006~2007年国内矿石供应增量可能下滑,但随着国外矿山新增产能的投产和运输条件的改善,国际市场矿石供应增量较大,可满足我国需求,市场形势将得到大的缓解。但如果我国钢铁市场增长需求进一步减弱,则国内生铁产量增量会减少,矿石需求量也将减少,而国际矿石供应量的增长会首先影响国内矿石市场,即国内矿石价格将出现下滑,而进口量继续保持大的增加。整体上看,2005~2010 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo年我国矿石进口仍将保持增长。2.2目标市场某某某矿业公司作为某某某钢铁集团有限责任公司的子公司,无论从长远,还是从规避市场风险来看,都应当把集团公司作为目标市场,即把自己作为集团的原料基地。通钢集团炼铁厂,现有高炉6座,总容积2478m3。年冶炼生铁约320×104t,可形成冶炼生铁能力为535×104t。其长远目标是钢、铁生产能力达到550×104t/a。按现有生铁规模320×104t/a计算,需铁矿石(原矿)1202×104t。而现有集团公司所属铁矿石基地铁矿石产量约360×104t(其中:板石250×104t,桦矿60×104t,其他50×104t),缺口约842×104t,需外购解决,大部分进口。如果按生铁规模535×104t/a计算,需铁矿石(折合原矿)2010×104t/a,缺口更大。从而可以看出,加快某某某矿业公司新坑口建设,充分合理开发利用矿产资源,增加通钢集团铁矿石供应量,不但可以提高整个集团公司(包括某某某矿业公司)的经济效益,同时对振兴繁荣地方经济也是十分必要的。2.3价格分析铁矿石经过2003年轮番上涨,到2004年,已到较高价位,虽然常有波动,但变化不大。进入2005年经过宏观调控,国产铁矿石价格稳中有降,但价位仍不低。本报告认为,铁矿石仍然处于一种波动状态,有回落的可能,但不可能跌至涨价前的水平。在可预见的时段里,铁精粉(66%)价位应在500 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo元/t~700元/t。3地质资源3.1概述某某某矿段位于老牛沟矿区北带中部,东联大西沟东山矿段,西接头道河子矿段,为矿区主要矿段,矿石储量占全区总储量的16%。设计依据的地质报告是由原吉林省地质局第二地质调查所于1983年提交的《吉林省某某某县老牛沟铁矿区总结勘探报告》,该报告已通过原吉林省储量委员会的评审。目前矿山已向省国土资源厅提出不做套改工作和风险自担的申请。3.2矿区地质矿区出露的地层有太古界鞍山群某某某组、元古界与中生界侏罗系地层;矿内分布的岩浆岩主要有前寒武纪、华力西晚期的岩浆岩及燕山期侵入岩。区内构造形迹以断裂为主,褶皱构造不发育。3.3矿区地质特征3.3.1矿体特征矿体产于某某某组上亚组一段的有30号矿组,二段有41、42号矿组,三段有43、44号矿组。全矿段共有五个矿组,19个工业矿体。30—3—3、41—1、41—2—2号矿体为盲矿体,其余皆出露地表。矿体规模大型者有5个,为41—2—2和由大西沟东山西延到本段的42号矿组之各矿体及42—4矿体。中型7个,小型7个。43、44号矿组分布于北部,矿体比较集中,多呈透镜状,少数似层状。中部的41、42号矿组及南部的30 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo号矿组部分矿体,形态为连续及断续的似层状。矿体长度100—2507.80m,最长为42—1号矿体。厚度3—4m,最厚为13.42m,最薄为42—5—1号矿体仅1.79m,厚度变化系数31.49—62.62%。深度37.50—304.14m。矿体走向290—319,倾向北东,倾角50—80。矿体品位最高TFe35.05%,最低21.44%。矿段平均品位TFe31.00%,SFe26.93%,全铁与可溶铁之差4.07%。各矿体品位变化均匀,品位变化系数9.46—19.82%。43、44号矿组的矿石为片麻状中、粗粒阳起磁铁石英岩,矿石工业类型属磁铁阳起型表内或表外贫矿石。42号矿组42—4号矿体矿石为片麻状中粒磁铁镁铁闪石岩,矿石工业类型为磁铁镁铁闪石型贫矿石。其它各矿体主要矿石有片麻状中细—粗粒透闪—磁铁石英岩、片麻状及条痕状细—中粒阳起—角闪磁铁石英岩。角闪—阳起磁铁石英岩,为磁铁石英岩型与少量磁铁闪石型表内贫矿石。30、41、42号矿组矿体的矿石自然、工业类型与大西沟东山矿段之各矿体基本相同。唯30号矿组30—1—2号矿体的矿石为片麻状粗粒石榴阳起磁铁石英岩,矿石工业类型为磁铁榴闪型表内贫矿石。矿体的围岩,赋存在上亚组一、二段的矿体,主要为黑云钠质条痕状混合岩,次之黑云片岩。一段还有黑云片麻岩,二段尚见黑云钾质条痕状混合岩、黑云变粒岩,赋存在三段的矿体围岩主要有黑云变粒岩、黑云钠质条痕状混合岩。此外,在30号矿组西南部有一富矿体,长度110m,最大厚度2.5m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo,平均厚1m,延深30m。走向322º,倾向北东,倾角63—84。呈扁豆状,矿石工业类型为磁铁绿泥型,围岩为黑云钠质条痕状混合岩和斜长角闪岩,具蚀变现象。兹将主要矿体地质特征描述如下:(1).42—1号矿体分布于29—40线。为大西沟东山矿段42—1号矿体延伸部分。矿体赋存在某某某组上亚组二段中部含铁层中。矿体大部分出露地表。地表工程控制的间距为50—100m,39线地段覆盖层很厚,难以施工,工程间距250m,通过1:2000磁测成果证实矿体是连续的,没有间断。钻探工程网度达100—230×50—230m。矿体呈似层状,工业矿体不连续,断续出现在32—33、34、35—35.5、36、37—40线上。34、35—35.5、36线呈盲矿体,规模很小。矿体断续长度2507.80m,累计长度2432.95m。厚度1.60—12.88m,平均厚度4.45m,厚度变化比较稳定,厚度变化系数52.81%。最大深度于38线为319.50m,最浅于35.5线为39.50m,平均深度187.46m。矿体走向293—313,倾向北东,倾角60—75。矿石品位最高TFe37.85%,最低23.86%。平均品位TFe31.60%,SFe30.22%,全铁与可溶铁之差0.38%。矿石组分沿走向及倾向上变化均匀,品位变化系数16.72%。矿体的东、西两端矿石以片麻状中细粒磁铁石英岩为主,个别地段矿石含有透闪石和阳起石。中部的34—35.5线为片麻状细— efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo中细粒阳起透闪磁铁石英岩。矿石工业类型以磁铁石英型表内贫矿石为主,磁铁闪石型表内贫矿石很少。磁铁石英型与磁铁闪石型表外贫矿石,仅零星分布于矿体的顶部、底部及西端矿体的边部。35线表外矿石随表内矿石沿矿体底板一同尖灭。矿体顶板围岩以黑云钠质条痕状混合岩为主,其次为黑云钾质眼球状混合岩、芝麻点状斜长角闪岩,黑云变粒岩、片状角闪岩。底板围岩亦是以黑云钠质条痕状混合岩为主,其次为片麻状斜长角闪岩、变质凝灰岩、块状角闪岩、黑云石英片岩。(2).42—2号矿体位于29—37线之间。断续出露在29—30、33.5—34及36—37线。赋存在某某某组上亚组二段中部含铁层中。矿体由50—200m间距的地表工程和200—230×60—260m网度的钻探工程控制。矿体呈似层状,形态变化较大。在纵投影图上向西沿走向延深逐渐变浅,出现“钳形”分枝和不连续的二个规模小的工业矿体后而尖灭。矿体断续长度为1714.88m,累计长度548.58m。最厚11.70m,最薄1.86m,平均厚度6.10m,厚度变化比较稳定,厚度变化系数62.62%。30线深度最大为403.50m,35.5线最浅30.75m,平均深度201.67m。矿体走向298—311,倾向北东,倾角60—75。矿石品位最高TFe36.75%,最低21.92%。平均品位TFe31.85%,SFe29.45%,全铁与可溶铁之差2.40%。矿石组分变化均匀,品位变化系数19.82%。矿体两端矿石类型不同,36线以东以片麻状粗—中细粒透闪磁铁石英岩为主,次为片麻状角闪阳起磁铁石英岩和粗片麻状磁铁石英岩。36 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo线以西以片麻状细粒磁铁石英岩为主,局部为块状细粒透闪磁铁石英岩。矿石工业类型以磁铁石英型表内贫矿石为主,磁铁闪石型表内贫矿石很少。磁铁石英型及闪石型表外贫矿石,分布零散,主要位于矿体上部或表内矿石的边缘处。矿体的围岩主要为黑云钠质条痕状混合岩。顶板岩石可见粗粒阳起石岩、黑云变粒岩、细粒角闪岩。底板还有黑云钾质条痕混合岩、黑云变粒岩、斜长角闪岩。(3).42—3号矿体分布于29—37线之间。属大西沟东山矿段42—3号矿体西延部分。矿体赋存在某某某组上亚组二段中部。于30、31线矿体出露地表。出露地表部分的矿体用槽探控制,工程很密,间距20—100m,地下及深部的矿体均用钻探控制,网度180—200×40—190m。矿体呈似层状,不连续。上下两部分夹着未达到工业要求的矿体。矿体长度484.75m,厚度2.01—4.45m,平均厚度2.88m,厚度变化稳定,厚度变化系数31.94%。最大深度于30线为158m,最浅的为61.50m。矿体走向296,倾向北东,倾角55—70。沿走向在西部出现分枝现象。矿石品位最高TFe34.60%,最低27.70%。平均TFe31.08%,SFe29.99%,全铁与可溶铁之差1.09%。矿石组分变化均匀,品位变化系数9.46%。组成矿石的类型复杂,主要为条痕状中细粒阳起— efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo透闪磁铁石英岩,工业类型以磁铁石英型表内贫矿石为主。31线有少量的片麻状中粗粒角闪—阳起石英岩及中粒阳起—角闪磁铁石英岩,工业类型为磁铁闪石型表内贫矿石。矿体围岩主要为黑云钠质条痕状混合岩,其次为片麻状阳起石岩、片麻状细粒斜长角闪岩,局部见角闪钠质条痕状混合岩。(4).42—4号矿体分布于30—36线。赋存在某某某组上亚组二段中部含铁层中。矿体在33线被覆盖,其余完全露出地表。地表由100—200m间距的槽探控制,深部钻探网度达100—230×40—220m。矿体呈似层状,连续稳定,长度1393.26m,厚度1.74—32.32m,平均厚度13.42m,厚度变化比较稳定,厚度变化系数59.61%。最大深度439.50m,最浅68.50m,平均深度304.14m。矿体走向300—311º,向北东倾,倾角50—78。矿石品位最高TFe34.10%,最低26.06%。平均品位TFe30.50%,SFe24.58%,全铁与可溶铁之差5.92%。矿石组分沿走向、倾向上变化均匀,品位变化系数17.33%。矿石以片麻状中粒磁铁镁铁闪石岩为主,部分为片麻状中粗粒镁铁闪石磁铁石英岩。矿石工业类型属磁铁镁铁闪石型。其它为片麻状中粗粒含镁铁闪石磁铁石英岩、片麻状中粗粒含阳起—角闪磁铁石英岩,矿石工业类型属磁铁石英型。矿体主要由磁铁镁铁闪石型表内贫矿石组成,而于顶部、底部或变窄部分,出现有磁铁石英型表内贫矿石。30线地表与32—33浅部、34 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo线下部于表内贫矿石的上部有少部分磁铁闪石型表外贫矿石。矿体围岩主要为黑云钠质条痕状混合岩。顶板尚有石英岩、中细粒斜长角闪岩、黑云片岩、黑云变粒岩、阳起石岩。底板还见变粒岩、黑云石英片岩及片麻状斜长角闪岩。31线有一处夹石,岩石为黑云钠长条痕状混合岩。3.3.2矿石质量特征3.3.2.1矿石结构构造(1)矿石结构粒状变晶结构他形粒状磁铁矿与石英呈等粒、不等粒彼此镶嵌,发育于磁铁石英型矿石中。粒状纤状变晶结构粒状磁铁矿、石英与闪石类矿物紧密共生。透闪石、阳起石呈纤状定向排列,见于磁铁闪石型矿石之中。包含结构细小的黄铁矿、磁黄铁矿或者是黄铜矿晶体被包裹在磁铁矿晶体中;黄铜矿被包裹在磁黄铁矿中。固溶体分解结构在磁铁矿解理、裂隙或晶边部位,钛铁矿呈丝状或格状汇集。交代(残余)结构赤铁矿交代磁铁矿,被交代的残余体仍能辨认出磁铁矿的晶体特征;赤铁矿中见有黄铁矿的残晶。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo(2)矿石构造矿石构造类型有以下几种:片麻状构造磁铁矿集合体在石英或闪石类矿物中呈断续定向排列。根据其线形构造宽度,进一步划分为粗片麻状(>5mm)、片麻状(5—1mm)、细片麻状(<1mm)构造。条带状构造磁铁矿与石英或闪石类型矿物分别集中而连续组成黑(灰)、白相间成层的条带。按条带宽窄及清晰程度又分条带状(>5mm)、条纹状(5—1mm)和细纹状(<1mm)三种。在被褶皱的地方,发生波状弯曲显褶纹构造。浸染状构造磁铁矿呈他形粒状或集合体星散均匀地分布在非金属矿物石英、闪石类矿物间。矿石有稠密浸染状和稀疏浸染状两类。该类型矿石品位较低,多属表外矿石。片状构造磁铁矿和闪石类矿物与石英或磁铁矿与绿泥石互相平行排列构成片理,见及于磁铁闪石型及磁铁石英型贫矿石内。块状构造磁铁矿呈他形粒状组成致密块状集合体。其孔隙间伴生有少量的绿泥石。仅见于磁铁绿泥型富矿石中。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo除上述,在构造破碎带附近的矿体,矿石多具角砾状构造和压碎状构造。某某某矿段一富矿体次生褐铁矿型矿石,见多孔状构造、胶状构造。综上所述,矿石主要为粒状变晶结构,粒状纤状变晶结构、复合结构。固溶体分解结构、交代结构等。矿体构造为片麻状构造、条带状构造、浸染状构造,片状构造、块状构造等。3.3.2.2矿石矿物成分矿石的矿物成分比较复杂。金属矿物除磁铁矿之外,尚有少量钛铁矿、钛铁尖晶石、黄铁矿、磁黄铁矿、黄铜矿、钛磁铁矿、板钛矿、锐钛矿、白钛矿、金红石、闪锌矿和方铅矿等。次生矿物有赤铁矿、褐铁矿、铁板钛矿、兰铜矿、孔雀石。非金属矿物主要有石英、镁铁闪石、透闪石、阳起石、角闪石,其次是黑云母、铁铝榴石、紫苏辉石、绿泥石、绿帘石、方解石、磷灰石及榍石、锆石等。3.3.2.3矿石化学成分磁铁矿石化学成份表地点SiO2Fe2O3FeOAi2O3MgOCaONa2OK2OMnOTiO2北带47.5728.3414.521.432.291.840.170.120.070.203.4矿床水文地质及开采技术条件3.4.1矿床水文地质老牛沟铁矿区位于构造剥蚀低山区,地形最高海拔800m,一般550—700m,某某某河谷为当地侵蚀基准面,海拔400m,切割深度150—250m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo,绝大部分矿体埋藏于当地侵蚀基准面以下,且有少部分矿体位于河谷区河流之下。河谷区可见三级阶地。本区自第四纪以来处于缓慢上升阶段。某某某河是矿区内主干河流,支流数条,较大者有稻草沟河等,具有夏季流量较大,冬季封冻期长等特点。河水与孔隙潜水含水层水力联系密切,河流是矿区地下水的排泄通道。矿区地下水交替强烈,排泄条件良好。当开采矿体时,河流又转化为充水源。河谷区第四系冲洪积砂砾层,是矿区内富水性相对较强的含水层,含水层厚度0.42—8.19m,钻孔单位涌水量0.2436—0.7315升/秒米,渗透系数2.8794—8.0234米/日,该含水层直接覆盖于河谷区含矿层及部分矿体之上,为矿坑间接充水来源。鞍山群某某某组风化裂隙潜水含水层在矿区内分布广,风化裂隙较发育,属细—小裂隙。含水层厚度50m—70m,裂隙发育程度随深度增加而减少以致消失。富水性也相对由强变弱。风化裂隙潜水是浅部矿坑的直接充水来源。矿区内脉状构造裂隙含水带的含水性弱,导水性差。脉状裂隙水是矿坑内的另一充水来源。当矿床采取防渗措施后,断裂构造带将不致造成矿坑强烈充水。矿区内断裂构造带中裂隙发育,岩石破碎,稳定性差,是影响矿床开采的主要不良工程地质因素。矿坑涌水量预测资料表明,矿床充水程度低,易于疏干。综上所述,老牛沟铁矿属产于充水岩层以裂隙岩层为主的矿床,水文地质和工程地质条件简单—中等类型。3.4.2矿床开采技术条件3.4.2.1矿体及顶底板岩石的稳定性 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo(1)矿床浅部首采地段岩石的稳定性据大西沟东山、某某某矿段的11个钻孔岩心资料,强风化带深度17—37m,平均深度26m。风化裂隙发育,岩石呈块状、碎块状,裂隙宽1—5mm,倾角68—87。充填物以泥质为主,岩石稳定性差。原生带各类岩石均较坚硬,以原生裂隙为主,裂隙结构面紧密,宽小于0.2mm,倾角57—83。局部伴随后期构造裂隙,部分被碳酸盐脉充填,胶结不甚紧密,较为松散,由此形成的构造裂隙部位工程地质条件不佳,开采过程可能引起坍塌掉块现象。(2)构造对矿体及围岩稳定性的影响老牛沟铁矿区地层为陡倾斜的单斜构造,倾向北东,倾角60—80左右。详勘区断裂构造分布于大西沟东山段南部、大西沟矿段19、20号矿组,某某某矿段亦有,矿体附近不发育。断裂构造有三组,其中北西向、东西向两组断裂对矿体有所破坏,北东向断裂形成最晚,其规模小,远离矿体,故对矿体的开采无大影响。(3)老牛沟铁矿属于坚硬岩石为主的层状矿床,工程地质条件属简单—中等。而详勘矿段的某某某矿段围岩稳定性较好,某某某河河床下的矿体在开采时地表水与地下水发生水力联系,对围岩稳定性有较大影响。3.5地质资源3.5.1地质部门提交储量 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo地段资源/储量估算表矿体号矿块号资源/储量类别水平厚度(m)垂直投影面积(m2)体积(m3)体重(t/m3)矿石量(t)品位(%)30—1—2合计3333.3710021332993.4811588129.4530—1—3合计3335.286868329233.4811457232.3741—2—2合计3334.0179283416211888531.01—合计122b3.853870149003.485185036.643335.63142145756064263110232.76—合计122b8.98121861169993.4840715531.993335.6918561711821133.48411375431.92122b+3337.3319780312991123.48452090931.9342—3合计3332.44168684577815930932.08—合计122b17.348745215450573.45533044631.0833314.0614805422045623.45760573729.96122b+33315.7023550637496193.451293613830.4243—4—1合计3335.582257112409843186236.0844—1合计3334.852384511400539673736.08—合计122b9.83228122423.487802930.47 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo3337.66291012136813.4874361131.25122b+3338.75313822361033.4882164031.1744—4—1合计3337.58210531653673.4857547633.81矿段合计122b8.77586748131.183334.691721897331.30122b+3336.732308645431.273.5.2设计利用中段储量中段标高储量类型矿石量(t)平均品位(%)备注122b52759132.5833336238133.07122b+33388997232.70122b116499731.5033345723432.00122b+333162223131.65122b186517431.4133372800931.00 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo122b+333259318331.32122b201266031.41333106497031.27122b+333307763031.38以下122b29705931.183331460637931.30122b+3331490343831.27合计122b586748131.183331721897331.30122b+3332308645431.273.6基建探矿本设计考虑到该矿数岩心采取单偏低,需投入基建探矿设计在610中段地质探矿工程量1942m,在560m中段探矿2918m。4建设规模与产品方案根据业主委托要求和矿山的资源储量情况,本设计确定矿山建设规模为:采矿50×104t/a,选矿60×104t/a(不足部分外购),年作业330天,每天3班,每班8小时。矿山最终产品为66%以上铁精粉,供通钢烧结厂使用。5厂址选择5.1概况5.1.1区域位置本设计拟建一采选联合企业,拟建矿区占地面积22.4万平方米。某某某铁矿位于吉林市东南117km处,位于吉林省某某某市东约 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo70km。地理坐标:东经127°14′55″—127°28′17″;北纬42°54′11″—43°01′17″。矿区西南有烟白线铁路通过,距红石火车站约25km;矿区距东某某某站(通钢所在地)379km。锦山村有长(春)—大(蒲柴河镇)公路通过,矿区内有森林公路通达,交通较为方便。5.1.2场址土地权属类别及占地面积某某某铁矿位于吉林省某某某市东约70km。矿区面积约1.6km2。矿区属低山地形。区内无居民。本设计占地面积22.4万平方米。5.2场址建设条件5.2.1地形、地貌、地震矿区属低山地形,处长白山脉与张广才岭交接地带,区内山脉走向北北东,绵延很长,山势比较平缓,以侵蚀地貌为主。区内海拔标高500—700m左右,某某某矿段主峰高711.5m,一般标高在200m~300m。山脊走向为北东向,构成分水岭。河流属松花江水系,东部有苇沙河(上游称四道沟河),流向西南;中部与西部有板庙河(上游称某某某河)、头道河流向西南折向西与色洛河汇合。均为常年流水,河床宽5-20m。第二松花江位于矿区西南12.5公里,上游二道河发源于长白山天池,河流蜿蜒曲折,河道狭窄,水流湍急,于市内西北注入松花湖。该处地震设防烈度为6度。设计地震动峰加速度0.05g。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo5.2.2工程地质与水文地质经现场调查,工程地质条件较好,水文地质条件较简单。5.2.3气候条件矿区属北温带大陆性偏寒森林山区气候。冬寒夏热,年温差较大,年平均气温4.2℃;月平均最高气温22.7℃。绝对最高气温达到36.3℃;月平均最低气温-17.7℃,绝对最低气温达到-40.3℃。年平均降水量为698.8mm。月平均降水量为178.8mm。月平均最小降水量为6.8mm。雨季集中在六、七、八月,占全年降水量的59.7%。本区蒸发量超过降水量,绝对值460.5mm。年蒸发量为1159.3mm,月平均最大蒸发量为217.3mm。年平均相对湿度72%,最小相对湿度9%。月平均最大湿度82%,平均最小湿度60%。冻结期为6个月,最大冻土深度1.97m。年平均风速2.2m/s。5.2.4社会环境区内林业资源丰富,红石林业局、某某某林场,为区内最早的企业。工业最早从采金业开始,矿区内有某某某金矿、锦山金矿、老金厂金矿、吉林市金矿等。矿区东南25km处有著名的夹皮沟金矿。自上世纪90年代开始,老牛沟矿区先后建设了某某某矿业公司(大西沟东山、属通钢)、吉林市铁矿(大西沟矿段、已属建龙集团)、红石铁矿(苇厦子矿段)、杨树沟矿段(老金厂镇建,现建龙集团租赁)、四道河子铁矿(属老金厂),现高丽屯铁矿(民企)亦在建设中。由于矿山的建设人口的增加,现在的某某某已如同一个小镇,商业和服务行业齐全。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo矿区南70km有白山水电站一座,总装机容量350万kw。输出电压220kv,并入东北电网;矿区西25km处有红石水电站一座,位于白山水电站的下游,该水电站装机容量为55万kw。输出电压66kv。为本矿上级的供电电源。5.2.5交通条件该矿所产铁精粉供通钢使用。产品自选厂外运至红石火车站为公路、汽车运输。铁精粉在红石站装车后,经铁路运输可直达东某某某通钢专用线卸入烧结厂。矿山生产生活所需原材料、生活用品可用汽车直接运至矿区。该矿区对外交通运输条件较好,不需新建对外运输公路。现有道路可以满足设备材料的运输和产品运出以及消防的要求。矿区内部运输主要是坑口所产原矿用窄轨铁路从坑口运至选矿厂。5.2.6公用设施社会依托条件用电——扩建某某某矿业公司现有变电所,向某某某新建矿山供电。某某某供电局已同意增容。现某某某矿业公司机修、电修、化检验等可以接受其委托加工。5.2.7环保条件选定厂址处为一片次生林区。无居民,无特殊环保要求。新建厂不产生有毒有害气体、污水。唯有采矿废石、选矿尾矿破坏景观。但可以复田造林。5.2.8征地、林地按某某某 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo市招商引资优惠条件,同意新建企业征用土地、林地,并已上报国家。因厂区无居民,无拆迁事宜。5.3场址比选某某某铁矿选厂位置有三个方案可供选择,现将方案比选论述如下:方案一:选厂位于某某某内,该沟内有其它的选厂生产,故该处的水源条件有限,不够选厂利用。如从头道河沟取水,需要铺设水道输送管线;同时尾矿库也只能布置在头道河沟西侧附近的沟内,矿石和尾矿输送反向,运输功大,不够合理。方案二:选厂位于头道河沟东侧460米标高处主坑口的西侧,距主坑口约55米处。该处布置选厂供水、尾矿、供电条件均能满足生产要求,矿石和尾矿输送方向也比较合理,据水源地近,工艺布置顺畅。方案三:选厂位于头道河沟的西侧、尾矿库的东侧,临尾矿库布置。该选址选厂受矿标高高于主坑口的标高,在生产过程中需将矿石用提升设备提升至选厂或汽车运至选厂,增加了二次倒运,且冬季生产可能冻矿,但初期尾矿可以自流。该方案建设投资和运营费用均增加。具体见下表 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo场址方案比选表:序号比选内容方案一方案二方案三1井巷工程增加3000米坑道(断面5.95m2);断面扩大3000m3(1m3/m)2供电与方案二、三比较供电路由短3Km。与方案一比较供电路由较长。与方案二比较,供电路由长约1Km。3供水用管道由头道河子输送至坑口,输送距离与方案二比较约长2680米。用电负荷为90千瓦。直接取用头道河子的水。用电负荷为55千瓦。取用头道河子的水,用水管道比方案二短约200米。用电负荷为55千瓦。4道路3000米长6.0米宽沙石路。3000米长6.0米宽沙石路。5000米长6.0米宽沙石路。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo5设备与方案一、二比较,原矿石由坑口运至选矿厂需增加运输设备:20吨载重汽车4辆,ZL50轮式装载机2台。增加司机20人。6尾矿输送由主坑口返回至头道河子附近的尾矿库,与方案二比较,输送距离约长3000米。尾矿库位于选厂的西侧,距选厂约700米左右。与方案二比较,尾矿输送距离约短200米左右。7征用林地与方案一、二比较,需多征林地12000平方米。基建投资(与方案二可比部分)(1)井巷工程增加:68.21万元;(2)供电减少:60万元;(3)供水增加:58.42万元;(4)尾矿输送增加:114万元;(1)供电增加:20万元;(2)供水减少:4.36万元;(3)道路增加:120万元;(4)设备增加:210万元(5)尾矿输送减少:3.8万元(6)征用林地增加:36万元经营费用人工增加:27.36万元/年电费增加13.86万元/年汽运费用增加:72万元/年合计(与方案二作比较增加投资)增加投资合计:194.49万元增加投资合计:477.2万元综上所述,本设计推荐方案二。6技术方案、设备方案和工程方案6.1采矿技术方案6.1.1开采范围及开采技术条件6.1.1.1开采范围 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo某某某铁矿开采范围为老牛沟矿区某某某矿段,东起29勘探线,西止40勘探线,走向长约2000m。全矿段有五个矿组,19条工业矿体,主要为42号、43号、44号三个矿组。上述五个矿组地质储量为2581.64×104t,设计取用矿量2323.48×104t。6.1.1.2开采技术条件(1)矿床类型矿床赋存于太古代鞍山群某某某组地质层中,主要含矿层位为某某某组上亚组一、二岩段,属于鞍山式沉积变质型贫铁矿床。(2)矿体赋存特征几条主要矿体列表如下:某某某矿段主要矿体特征表矿体编号分布范围赋存标高露头情况矿体规模矿体产状矿体形态地质储量备注走向长()延伸(m)厚度(m)走向倾向倾角(º)矿石量平均品位()占矿段量()波动平均波动平均42-430-36线650-94出露地表1393.2668.5-438.6304.141.74-32.3213.42300º-311ºNE60-78透镜状1296.5430.7250.22矿石主要为煤铁闪石型42-229-37线648-0断续断续1714.8830.75-403.5210.671.86-11.706.10298º-311ºNE60-75透镜状490.3832.2418.99 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo出露地表矿体形态变化大,且具分枝,矿体累计长548.58m42-129-40线626-156大部出露地表断续2507.839.5-319.5187.461.60-12.884.45293º-313ºNE60-75似层状397.5231.8515.4矿石为石英型,主要储量在37—40线间42-2-229-31线230-104208—245637.32224-335279.382.50-5.04.09NWNE65似层状130.1431.285.04矿石为石英型42-329-37线468-168局部出露地表484.7561.5-158110.002.01-4.452.88296ºNE60-75似层状25.3131.080.98矿石主要为石英型,引线见闪石型矿体两部见分枝(3)矿床开采技术条件a、矿体围岩及其稳定性矿体顶底板围岩的岩性变化较大,一般以条痕状混合岩为主,斜长角闪岩、角闪岩、眼球状混合岩次之,以及片岩、变粒岩等。强化风化带裂隙发育,岩石稳定性较差,强风化带深度平均26m。原生带岩石均较坚硬,据地质报告提供,岩心破碎程度一般15~30%;矿层直接顶板10m以内,破碎状岩占顶板总数25%,工程地质条件属中等。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoob、构造对稳定性的影响区内NE向、E~W向两组断裂对矿体的破坏作用,开采时应注意构造岩的不稳定因素。c、其他影响因素i、29勘探线以东,矿体处于某某某河水之下,开采时应留保安矿柱,开采至河床附近矿体时应注意地表水与地下水之间的水力联系。ii、地质勘探期间多数钻孔未做封孔处理,开采时应注意钻孔的导水作用。d、矿岩物理力学性质i、体重:矿石3.33t/m3岩石2.70t/m3ii、松散系数:矿石1.65岩石1.5iii、矿石湿度:0.08%iv、矿岩力学性质指标岩石性质地质构造设计选取抗压强度ff矿石2056~337421~3116~18角闪岩1367~228315~2010~14斜长角闪岩1803~245318~2514~16混合岩790~16878~1610~12混合花岗岩1851~350619~3512~16黑云变粒岩1574~192916~1910~14构造岩1298~1710158~10 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo6.1.2采矿方法6.1.2.1采矿方法选择根据矿体产状、规模大小,矿体厚度和赋存条件,43号、44号矿组和42号矿组的36号勘探线以西部分,采用电耙出矿分段采矿法(局部矿体厚度小于3m时可采用浅孔留矿法);42号矿组的36号勘探线以东部分采用铲运机出矿分段采矿法,个别矿岩不稳固地段可采用干式充填法(所占比例很小,不单独论述)。电耙出矿分段采矿法,阶段高度50m,矿块沿走向布置,矿块长40~50m,分段高10~12m,间柱6~8m,顶柱5~6m,底柱10~12m,采用30kw电耙出矿,电耙台年效率取3×104t。铲运机出矿分段采矿法,阶段高度50m,分段高度10~12m,当矿体厚度大于15m时,矿块垂直走向布置,间柱8~10m,顶底6~8m,底柱10~12m,矿块宽20~25m(顶板暴露面积小于800m2)。铲运机台年效率取10×104t。也可以用双电耙替代铲运机。采准切割比取:7m/kt。采掘比取:300m/104t。6.1.2.2回采工艺及设备选择分段采矿法——(1)矿块结构参数阶段高50m,矿块长度50m,矿块宽度为矿体水平厚度,分段高度11m,底柱高度13m,顶柱高度5—6m,间柱宽度8m,漏斗间距6m。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo(2)采准工作阶段运输巷道位于矿体下盘,矿块沿走向布置,每隔50m由运输巷道掘穿脉巷道,在脉内上掘人行通风天井,与上一阶段运输巷联通,天井规格22m2。在距中段运输巷底板6m处掘电耙道,与矿块两侧人行通风天井联通。在电耙道内每隔6m掘漏斗穿和漏斗颈,规格22m2。按分段高度11m掘分段凿岩巷及凿岩联络巷,规格2.82.8m2。(3)切割工作在距运输巷底板高13m处沿矿体走向掘一条拉底巷道,规格2.82.8m2。将矿房底部全部拉开,形成拉底切割层并扩大漏斗成喇叭口.在矿房中央位置掘切割天井,每隔10m掘垂直矿体走向方向的切割平巷。(4)回采工作①落矿:落矿设备采用YGZ-90型凿岩机配TJ25台架。钻孔直径62~65mm,台年效率14000m/台∙年。切割拉底完成之后,按预先设计好的拉槽孔及回采扇形孔进行凿岩,爆破次序为先爆拉槽孔后爆回采扇形孔,每次3~5排孔。炮孔间距1.5~1.8m,孔底距1.7~2m,爆破采用非电雷管分段起爆,崩落矿石块度>500mm视为大块,应在铲运机行道中或耙道内进行二次破碎。②出矿:分为二种:矿量大的矿块用JWD—1.5电动铲运机出矿(也可用双耙道,55kw电耙出矿);矿量小的矿块用30kw电耙出矿。6.1.2.3采准、切割工程量计算及材料消耗(1)采准、切割工程量计算采准、切割工程量计算见下表 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo分段空场采矿法矿块采准、切割工程量表编号工程名称规格()矿石中长度(m)岩石中长度(m)矿石中总长度()工程量(m3)数量单长总长数量单长总长矿石岩石矿岩合计1阶段运输巷2.3×2.71505050310.5310.52人行通风天井2×2160.4660.4660.46241.84241.843联络巷2.8×2.8631818141.12141.124电耙道2×214848481921925漏斗穿2×22×26+63+2.53360.5336132121446漏斗颈2×212224242402407矿石溜井2×21441226168248天井入口(大巷)2×223+47728289拉底巷2.8×2.81424242329.28329.2810劈漏1270870811凿岩巷道2.8×2.82408080627.2627.212切割横巷2.8×3210202016816813切割天井2×214101141.1141.11164.44164.4414拉底11081.921081.92合计377.57382.574069.84089.8分段凿岩阶段矿房法采出矿石量计算表工作阶段工业矿石量(t)回收率(%)废石混入率(%)采出纯矿石(t)采出毛矿石(t)占比重(%)采准7978.7310007978.737978.737.27切割5980.6910005980.695980.695.45矿房回采54380.58881547854.9156299.8251.30矿柱回采4556065252961439485.3335.98 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo总计113900802091428.33109744.64100矿山综合生产能力表产量工作内容单位年产量(t)日产量(t)班产量(t)备注矿房出矿量t256500777.27259.09矿柱出矿量t179900545.15181.72掘进副产矿量t63600192.7364.24掘进工程量m350010.613.54开拓探矿废石20%t10000303.03101.01经计算,某某某铁矿矿体地下开采,采矿综合回收率80%,贫化率17%,采切比7m/kt,副产矿石率12.72%,采出矿石品位平均为27.58%。(2)材料消耗采掘材料消耗见下表采掘主要材料消耗材料名称开拓探矿采准采矿年采掘综合耗量单耗年耗单耗年耗单位年总耗量单位数量单位数量2#岩石炸药kg/m32.5147481kg/t0.492212002kg359483导爆管+雷管个/m33176977个/t0.304147367个324344导爆线m/t0.2341870m41870钎子钢kg/m30.2514748kg/t0.0312927kg27675 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo合金片kg/m30.005294.96g/t1.195514925kg810坑木m3/m30.04885m3/t0.00037160m31045机油kg/m30.084720kg/t0.003631564kg62846.1.3矿山生产能力、工作制度及服务年限6.1.3.1矿山工作制度确定矿山采用连续工作制,年工作330天,每天工作3班,每班工作8小时。6.1.3.2生产能力验证(1)按可布矿块数验证生产能力按可布矿块数,验证生产能力按下式:A=(N1q1+N2q2)ktE/1-z式中:A—矿山年产量,t/a;N1—同时回采可布矿块数;q1—矿房生产能力,t/d;N2—同时回采可布矿块数;q2—矿房生产能力,t/d;k—矿块利用系数;E—地质影响系数,取0.8;t—年作业天数,330d/a;z—附产矿石率,取10%。各中段可能达到的生产能力列表如下: efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo中段标高(m)采矿方法矿体长度(m)可布矿块数(个)矿块利用系数同时工作矿块数(个)同时工作矿柱数(个)矿块生产能力(t/d)矿柱生产能力(t/d)地质影响系数可达生产能力(104t/a)610分段法:铲运机电耙40080.331000.758.2511560分段法:铲运机电耙550200940.30.3313300100200.7529.1538.87510分段法:铲运机电耙55070013140.30.3453130010050200.7551.4368.57460分段法:铲运机电耙70080017160.30.3554530010050200.7563.2584.33410分段法:铲运机电耙130058027120.30.3845530010050200.7577.96103.95360分段法:铲运机电耙13004202780.30.3828430010050200.7584.70112.93310分段法:铲运机电耙1250240265030.3828230010050200.7583.60111.47260分段法:铲运机电耙12501002620.30.3818230010050200.7580.95107.8210分段法:铲运机电耙1200230.30.378130050200.7569.392.40以上表可以看出,按可布矿块数验证矿山生产能力,单中段作业,生产能力可达29~84104t/a。(2)按开采年下降速度验证按开采年下降速度验证生产能力列于下表: efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo中段标高(m)中段资源储量104t中段设计取用储量104t开采年下降速度(m/a)可达生产能力(104t/a)备注61089.0069.221520.77560162.22132.281539.68510259.32211.551563.47460308.26245.041573.51410304.51252.941575.88360245.87199.451559.84310242.44201.131560.34260280.43236.171570.85210267.47234.761570.34160237.47208.121562.44平均213.491564.05未计610中段注:122b(B+C级)按90%取用,333(D级)按60%取用。从上表可以看出,按开采年下降速度验证矿山生产能力可达64×104t。(3)按新水平准备时间验证某某某矿矿体长约2km,竖井开拓,根据类似矿山经验,新水平准备时间约为三年。按新水平准备时间,可能达到的验证生产能力为:A=47.44×104t/a式中:A—矿山年产量,10t/a; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooQz—中段平均设计取用矿量,213.49×104t;η—矿石回采率,80%;C—新水平准备超前系数,1.5;ρ—采矿废石混入率,20%;t—新水平准备时间,3a。从计算得知按新水准备时间验证生产能力可达47.44×104t/a。(4)生产能力的确定经上述三个方面验证,某某某铁矿生产能力主要受新水平准备时间制约,按新水平准备时间确定生产能力,最大为50×104t/a。但考虑该矿有一些平行脉未计算储量,已计算资源储量的333类矿量经探矿升级一部分,加上深部开拓时技术进步,采掘工作加快等因素,矿山生产能力达到50×104t/a是可能的,故本设计按委托要求,按年产矿石50×104t/a设计。在某某某矿资源储量中,石英型矿石约占40%,闪石型矿约占60%,因此年产量中,石英型产量24×104t/a,闪石型36×104t/a,出矿品位平均26.06%。6.1.3.3矿山服务年限T=26a式中:T—矿山服务年限;Q—设计取用储量;η—矿石回采率;ρ—废石混入率; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooA—年产量。(2)460m中段以上服务年限T上=Q上•η/A(1-ρ)=658.09×0.8/60(1-0.2)=10.97a式中:T上—460m中段以上服务年限;Q上—460m中段以上设计取用矿量;η—矿石回采率;ρ—废石混入率;A—年产量。6.1.4开拓运输系统6.1.4.1岩石移动界限的确定根据类似矿山的经验,结合本矿实际,确定开采岩石移动角如下:上盘60º,下盘65º,两翼70º。为保护某某某河,留有保安矿柱,矿柱矿量如下:矿体C(104t)D(104t)C+D(104t)42—115.9215.9242—5173.4152.7626.8542—310.3916.4626.85合计183.885.14268.94详见附图6.1.4.2开拓方案选择某某某铁矿矿体位于老牛沟矿区北矿带中部某某某河西,地形最高标高720m,最低标高400m。矿体赋存最高标高700m,最低标高-10m;矿体分布于29勘探线至40勘探线之间,走向长约2000m;矿体厚度2—30m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo,倾角50º~75º。选矿厂位置选择在矿段西端头道河沟边的山坡上,受矿标高为460m。根据矿区地形和矿体赋存条件,以及选厂位置及受矿标高,460m标高以上,矿床有两个开拓方案:I方案:为平硐溜井开拓方案。所采矿石经溜井放至460m水平,用电机车将矿石送至选厂原矿仓。II方案:为平硐汽车运输方案。公路上山到达各采矿平硐口,所采矿石用汽车送至选厂原矿仓。虽然II方案基建工程量较少,生产较灵活,但要伐树修路,破坏植被与环境,征地困难,不予选用。设计推荐460m以上矿床采用平硐溜井开拓,460m以下采用平硐盲竖井开拓,460m平硐为出矿水平。460m水平以上设计取用矿量658.09×104t,可服务13a,因此某某某铁矿分两期建设,一期开采460m标高以上,二期开采460m以下。460m主平硐向选厂供矿的西口,位置有两个方案可供选择:一方案为在选厂附近垂直头道河子矿组进入坑内;二方案为沿头道河子矿组下盘,岩移范围外沿一段半壁路堑,然后在37号勘探线进入坑内。一方案虽然井巷工程量略大,但可防止冬季冻矿,故推荐该方案。由于410m中段已经形成,因此将中段高度确定为50m。460m平硐以上主要开采水平有510m、560m、610m;460m以下主要开采水平有410m、360m、310m、260m、210m和160m等中段。对一期开拓工程描述如下: efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo在矿床中部34~34.5勘探线中间,42号矿组和43号矿组之间设一罐笼井,用于提升460m平硐以上各生产中段所需材料、设备,废石也用该井提升,以用做事后充填料。该罐笼井井口标高610m,井底标高460m,直径Φ5m,井口安装1.85×4多绳摩擦轮提升井,用以提升设备、材料。人员从各平硐口进出。根据矿体及矿量分布情况,设4条溜矿井:在34.5号勘探线附近为42号矿组设1#和2#主溜井,用于下放东采区42号矿组采出的矿石;在39—40号勘探线之间设3#主溜井,用于下放西采区42号矿组采出的矿石;在35.5号勘探线附近,42.5—43矿组之间设4#主溜井,用于下放北采区43号、44号矿组采区的矿石。各溜井长度为1#、2#、3#各长100m,4#溜井150m。主溜井断面为12.56m2,各条主溜井下口均设双台板式振动放矿机。坑内3t火药库和机修硐室均布置在460m水平。矿床深部(460m以下)开拓,初步设想为:在36号勘探线附近设主、副井开拓,主井为箕斗井,副井为单罐笼井。在矿床两翼设排风进行通风和作为安全出口。6.1.5井巷工程某某某铁矿井巷基建工程量表序号工程名称断面(m2)工程量备注掘进净长度(m)体积(m3)1人员材料井12.5611.341.875458含硐室21#溜井12.5612.56981748含硐室、检查井32#溜井12.5612.56981748含硐室、检查井 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo43#溜井12.5612.56981748含硐室、检查井54#溜井12.5612.56981748含硐室、检查井6460m供水工程3647510m供水工程3648560m供水工程3649610m储水仓500103t火药库670(460m水平)11机修室161(460m水平)12坑内变电所60013460m平硐5.975.4918121081814460m平硐10.779.92310333915510m平硐5.975.4916901008916510m平硐10.779.92310333917560m平硐5.975.49332819868含地探2918m18560m平硐10.779.92310333919610m平硐5.975.49188211236含地探1942m20610m平硐10.779.92310333921基建采准切割39264合计折201681210016.1.5.1盲竖井(材料设备井)盲竖井位于矿区33.5线,用于提升废石、设备和材料。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo由于欠缺竖井地质工程钻孔柱状图等资料,对围岩的稳固性及破碎带没有具体论证,因此竖井设计采用了圆形断面。其优点在于受力条件好,适合于比较复杂的地质条件,通风阻力小,以及方便施工掘砌。井筒的井壁支护方案,仅根据地质报告提供的岩性资料,采用了喷射混凝土支护。如遇破碎带或断层及围岩不稳定地段,必要时采用混凝土或钢筋混凝土支护。设计盲竖井井筒直径3.8m,净断面11.34m2,掘进断面12.56m2。由610m中段至460m中段,井底底部深15m,头部至天轮硐室高度22m。井筒通过560m中段和510m中段,各中段均为双侧马头门,锁口段采用混凝土支护,支护厚度300mm,井筒其余部分支护以喷射混凝土为主,厚度100mm,如遇破碎不稳固岩层及有涌水部位,则应考虑采取相应的加强支护与堵、防水措施。竖井采用2号双层罐笼带平衡锤的提升方式,2JK2.5—1.2/20提升机。井筒装备为钢罐梁、复合罐道,钢梯子及玻璃钢隔网。井筒内设提升间、梯子间、管子间和电缆间。罐道梁及梯子平台的层间距均为4m。罐道梁固定采用简易锚杆法。竖井掘进工程量(包括锁口、井筒、马头门、天轮硐室、卷扬机硐室及绳道等)为5458m3,支护量为709m3,井筒装备钢材量为64000kg,木材16m3,玻璃钢10t。6.1.5.2盲竖井车场盲竖井在610m、560m、510m及460m中段均设环形井底车场,喷射砼支护,运输采用7t电机车牵引14辆1.2m3侧卸矿车,车场巷道单轨净断面5.49m2,双轨净断面9.92m2。6.1.5.3溜井及溜井车场矿区井下设置垂直溜井4条。其中1号溜井、2号溜井、3号溜井由560m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo中段经510m中段至460m中段,在510m中段设分支斜溜道,每条溜井设振动放矿机装矿硐室一个,卸矿硐室两个。4号溜井由610m中段经560m中段、510m中段至460m中段,在560m中段、510m中段设分支斜溜道,溜井设振动放矿机装矿硐室一个,卸矿硐室三个。溜井为圆形断面,直径4.0m,贮矿段直径5.0m。溜井在610m、560m、510m及460m中段均各设相应的装、卸矿车场,以喷射砼支护,运输采用7t电机车牵引14辆1.2m3侧卸矿车,车场巷道单轨净断面5.49m2,双轨净断面9.92m2。详见基建工程量表。6.1.5.4铲运机修理硐室矿区井下在460m中段设置铲运机修理硐室一个,详见基建工程量表。6.1.5.53t炸药库井下在460m中段设置一个硐室式3t炸药库,详见基建工程量表。6.1.5.6坑内供水系统矿区坑内分别在560m中段、510m中段、460m中段设置集水仓及水泵房,用以供各中段生产用水,水量按120m3/d考虑。在610m中段设储水仓,用水量按500m3/d考虑。详见基建工程量表6.1.5.7矿山基建工程(1)矿山基建工程量根据采矿50×104t/a生产能力要求,基建开拓工程主要包括610m、560m和510m(部分)中段开拓,460m主平硐运输大巷开凿,以便矿山投产之后能在较短时间内尽快达产。设计矿山投产时生产能力为25×104t/a。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo根据选用的矿山开拓系统、采矿方法和三级矿量保有量之规定,确定的基建工程量为19072m(113857m3)。(2)基建进度计划参考《冶金工业项目建设工期定额》及某某某铁矿区施工队伍的实际情况,设计选定的基建期建设速度如下:双轨巷道:80m/月;单轨巷道:100m/月;采切巷道:120m/月;采切天井、溜井:70m/月;主溜井、阶段溜矿井:60m/月。根据上述掘进速度和基建施工安排,基建时间为2a。某某某铁矿地下开采基建开拓总工程量为19027m/113857m3,采切工程量为5481m/32720m3,基建副产矿量为41.11×104t。矿山基建工程完成后保有的三级矿量为:开拓矿量:201.5×104t,保有期4a;采准矿量:113.90×104t,保有期26月;备采矿量:56.95×104t,保有期13个月。6.1.6矿井通风与安全、除尘6.1.6.1通风方式与通风系统一期460m以上四个中段为平硐开拓,各中段场有两个安全出口通地表,故设计采用局扇通风,新风自平硐进入坑内,冲洗工作面后,经回风天井至上中段回风巷排出。6.1.6.2安全与防尘 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo矿山安全技术应根据《金属非金属地下矿山安全规程》的要求和该铁矿的实际情况、特点,制订各项规章制度,建立完善的通风防尘系统,确保矿山安全生产。为了保护职工身体健康,防止职业病的发生,除建立、健全必要的安全保健规章制度外,还要建立有关福利待遇及各项设施。作业时严格按照安全规程规定执行,井下凿岩必须采用湿式凿岩,严禁打干眼。爆破后除有足够时间通风外,还要采用喷雾洒水进行防尘,装卸矿点也要采取喷雾洒水的方式进行除尘。为了保证通风和行人安全,矿山对采空区和顶板围岩要及时进行处理,对矿柱回采要有统一规划,对报废的井巷要及时封闭。尽量避免废弃井巷及采空区漏风。井下避灾路线要畅通无阻,照明良好,路标明确。6.1.7井下排水及供水从地质报告中的水文地质部分来看,矿区水文地质条件属简单型,井下涌水量不大。设计460m以上各中段采用平硐设置水沟的排水方式;地下涌水分别通过各自的水沟排至硐口集水坑,用泵扬至610m中段水仓,供坑内防尘用。多余部分扬送至坑外。6.1.8存在的问题及建议(1)对于设计所采用的采矿方法,建议矿山在生产中做好采矿方法试验研究工作,以改进采矿方法技术参数,降低矿山开采的损失贫化和成本,保证作业安全。(2)建议矿山健全各项规章制度,确保安全生产。(3)要加强采场地压管理。由于本设计矿山为薄~中厚矿体,推荐的采矿方法为浅孔留矿法和分段采矿法。设计要求对矿柱要及时回采,对采空区要及时处理,以确保安全。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo(4)建、构筑物不得布置在开采移动界线之内。(5)该矿矿石为磁铁矿,由于用电设备、易燃物等外因有可能造成火灾,因此要在易于产生火灾的地点设置必要的防火设施,如井底车场、变电所、火药发放硐室等,要配备适合的灭火器、砂箱等灭火器材。要加强日常管理,制定必要的防火规章制度,杜绝坑内火灾的发生。6.2矿山机械6.2.1设计依据矿山规模:本次设计矿山规模为矿石60万t/a,岩石11.88万t/a。矿岩石性质:矿石比重3.34t/m3,松散系数1.65,松散比重为2.02t/m3。岩石比重2.7t/m3,松散系数1.5,松散比重为1.8t/m3。工作制度:年工作日为330天,日工作3班,每班工作8小时。服务年限:一期13a。6.2.2矿山坑内运输系统6.2.2.1坑内运输系统概述该矿山为地下开采,开拓方式为平硐溜井(加辅助竖井)开拓。主要中段有460、510、560和610m中段,其中510m、560m中段是主要生产中段,主运平硐为460m中段。6.2.2.2坑内矿、岩石运输系统正常生产期间,各中段生产的矿石均由均由溜井下放到主运平硐,由主运平硐直接运至选厂原矿仓。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo各中段生产的岩石用于井下充填,运至辅助竖井井口,提升或下放到充填中段。各生产中段均采用电机车运输矿、岩石,电机车型号为ZK7—6/250型,460m主运平硐设4台,510m中段设3台,560m及610m中段各设1台电机车。运输矿石采用YCC1.2(6)型侧卸式矿车,每列电机车牵引14辆矿车。溜井采用振动放矿机装矿。在460m中段溜井底部各安装1台振动放矿机,振动放矿机型号为XZGZ2.81.3-7.5型。卸矿采用卸载曲轨。运输岩石采用YFC0.7(6)型侧卸式矿车,每列电机车牵引16辆矿车。人工装卸。6.2.2.3坑内人员、材料及设备运输生产期间,井下最大班人数120人。坑内各中段人员从各平硐口进入坑内,用于充填的废石、采掘所用材料及设备等由竖井提升到各中段。6.2.2.4辅助竖井提升系统(1)设计依据竖井井口标高610m,井底标高460m,深150m。该竖井主要负责提升岩石、材料及设备等,必要时提升人员。提升系统采用单罐平衡锤提升。(2)提升设施选择(1)提升容器提升容器采用2#双层罐笼,每次可提升2辆岩石矿车。罐笼自重Gg=2740kg。矿车自重Qk=710kg。(2)平衡锤Qc=Qg+2Qk+1/2Qx efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo=5280kg有效载重Qx=2260kg取平衡锤Qc=5300kg(3)钢丝绳选择QdPs=------------------110-5σ/m-Ho式中:Ps—钢丝绳每m质量σ—钢丝抗拉强度取σ=170107PaQd—钢丝绳终端悬挂质量Qd=Qg+2Qk+2Q=6410kgHo—钢丝绳最大悬垂长度Ho=H+Hj=172m设计选取619-Φ31-170型钢丝绳,钢绳每m质量Ps′=3.38kg/m,钢绳破断力Qp=60850kg。钢丝绳安全系数m′:Qp提升矿石:m′=-------------------=9.74Qd+Ps′Ho安全系数大于7.5,满足要求。Qp必要时提升人员:m′=-------------------=14.54 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooQ′d+Ps′Ho安全系数大于9,满足要求。(4)天轮直径选择Dt≥ds=8031=2480mm设计选Dt=2.5m剖分式结构。(5)提升机选择a、卷筒直径Dj=2.5mb、卷筒宽度H+Ls+(nm+4)πDj双层缠绕时:B=〔---------------------〕(ds+ε)h′πDp=882mm考虑后期,设计取B=1.2mc、钢绳最大静张力及最大静张力差最大静张力Fc=(2Qx+Qg+2Qk+Ps′Ho)g=69464N最大静张力差Fj=(2Qx+Qg+2Qk+Ps′H-Qc)g=17524N设计选用2JK-2.5×1.2/20矿用提升机,减速比20,最大钢绳速度V=4.7m/s。卷筒为剖分式。(6)电机功率的选择KFjV efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooN′=-------------ρ=130KW1000η式中:K——井筒阻力系数取1.2ρ——动力系数取1.4α——速度乘数取α=1.25η——传动效率取η=0.85设计选用YR355M-8型电机,功率N=200kw,电压380V。(7)提升系统运输能力提升系统一次提升全时间T=147s,小时提升次数为24次/小时。提升时间平衡表如表提升时间平衡表项目提升时间提升时间休止时间提升全时间班提升次数班提升时间岩石39s67s147s532.18h人员39s67s211s120.7h其他1.44h合计4.32h经计算可知,可够满足生产要求。6.2.2.5坑内供气设施(1)全矿最大耗气量矿山坑内耗气设备如下:YSP-453台每台耗气量5.0m/minYT-2710台每台耗气量3.3m/min efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooTJ254台每台耗气量11m/minYG904台每台耗气量11m/minQZJ-100B1台每台耗气量12m/minTG2天井掘进台1套每台耗气量7m/min砼喷射机1套每台耗气量10m/min矿山最大耗气量Qmax:Qmax=1.05KGKLKXKT=200.6m/min式中:KG-高原修正系数取1.07;KL-管网漏汽系数区取1.1;KX-生产能力下降系数取1.01;KT-凿岩机同时工作系数取0.9;Km-凿岩机磨损系数取1.15。(2)压气设施选择根据最大耗气量,设计确定采用4台73m/min压缩机,3台工作,1台备用。其型号为:LU400型双螺杆空压机。空压机技术参数如下:排气量:73m3/min;排气压力:0.8MPa;功率:400kw。主供风管采用Φ219x6无缝钢管,各中段采用Φ159x4.5无缝钢管。6.2.2.6坑内通风坑内通风采用局扇机械通风方式。通风设施见采矿专业。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo6.2.2.7坑内供、排水设施6.2.2.7.1坑内供水坑内各中段生产及消防用水,采用高位水池供水。主供水管采用Φ1334无缝钢管。6.2.2.7.2坑内排水坑内正常涌水量为768m3/d,最大涌水量为1200m3/d。各中段设排水泵站,经竖井排至610m中段高位水池,多余的涌水经平硐口排出地表。各中段排水设施如下:460m中段:设D12—257水泵2台,1台工作,1台备用。流量12.5m3/h,扬程175m,配套电机功率15KW。510m中段:设D12—255水泵2台,1台工作,1台备用。流量12.5m3/h,扬程125m,配套电机功率11KW。560m中段:设D12—253水泵2台,1台工作,1台备用。流量12.5m3/h,扬程75m,配套电机功率7.5KW。竖井井底水窝利用50WQ25—36—7.5型潜水泵排至460m中段。主排水管设2条,采用Φ894无缝钢管。6.3选矿6.3.1原矿性质 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo矿石的矿物成分比较复杂,金属矿物除磁铁矿外,尚有少量钛铁矿、钛铁尖晶石、黄铁矿、磁黄铁矿、黄铜矿、钛磁铁矿、板钛矿,锐钛矿、白钛矿、金红石、闪锌矿和方铅矿等。次生矿物有磁铁矿、褐铁矿、铁板钛矿、兰铜矿、孔雀石。非金属矿物主要有石英、镁铁闪岩、透闪石、阳起石、角闪石,其次是黑云母、铁钎榴石、紫苏辉石、绿泥石、绿帘石、方解石、磷灰石、锆石等。磁铁矿为矿石中主要有矿物,含量28—80%,一般呈半自形粒状,他形粒状或粒状集合体,粒径85%左右,大于0.2mm。50%以上的矿物与石英自然接触,近50%与镁铁闪石、阳起石等自然接触。粒状集合体及聚粒状磁铁矿边缘有假象磁铁矿化。黄铁矿分布比较普遍,含量少,他形粒状或集合体出现,粒径0.05—1.2mm,热液作用形成的黄铁矿,呈胶状或浸染状、多自形、半自形,粒径较粗,可达0.2mm。石英为矿石中主要脉石矿物,含量2—70%,无色透明,有时表面有些混浊,具有波状消光,他形、粒状集合体或被挤压成拉长状,颗粒大小不等,粒径0.01—1mm,一般0.1—0.3mm。镁铁闪石为矿石中主要脉石矿物之一,含量2—50%,局部达75%,他形、半自形、纤维状、柱状集合体。多与磁铁矿共生,有交代磁铁矿现象,有时渐变角闪石。6.3.2选矿试验研究及评价6.3.2.1选矿试验研究及结果某某某铁矿为老牛沟铁矿区的一个矿段,其矿石性质与整个矿区的矿石性质基本相同。吉林省冶金设计研究所,原地质部地质科学研究院矿物原料研究所,鞍山黑色金属矿山设计研究院等单位,先后对老牛沟铁矿石做过可选性试验,其结果大体相同,但又不能完全代表某某某 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo矿可选性。经综合比较,参照上个世纪九十年代的选矿试验有关数据,本次设计暂推荐选矿工艺流程如下:原矿经三段一闭路破碎,经磁滑轮干磁选抛尾后的精矿给入磨矿,采用阶段磨矿阶段选别的工艺流程。通过老牛沟铁矿区的选矿试验所得到的数据,虽具有一定的代表性,但仍与某某某铁矿石可选性可能会有一定误差。建议在下一设计阶段进行前,完善选矿试验,以便更好地指导设计及生产。6.3.3选矿指标及生产工艺6.3.3.1选矿指标根据原矿性质,参考选矿试验数据,借鉴同类生产实践,确定选矿主要生产技术指标见下表:选矿主要生产技术指标表名称年产(万t/a)产率(%)品位(%)回收率(%)铁精矿17.80829.6866.0075.00磁滑轮尾矿10.07416.798.515.53选厂矿浆尾矿32.11853.539.5019.47原矿60.00100.0026.12100.006.3.3.2生产工艺生产工艺流程的主要环节分述如下:(1)破碎破碎采用三段一闭路生产流程。第一段采用PE600900型颚式破碎机,第二段采用YPB—1650型圆锥破碎机,第三段采用PYD—1750型圆锥破碎机并与15003000振动筛构成闭路破碎流程。原矿最大给料块度为500mm,最终破碎产品粒度小于15mm。(2)干磁选 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo第一段破碎后的矿石经一台Φ800950磁力滚筒干磁选抛尾,可抛出产率为16.79%、品位为8.51%干尾矿(即废石),以提高选厂原矿入选品位,降低选矿生产成本。(3)磨矿根据入选矿石性质,采用阶段磨矿阶段选别工艺流程。采用Φ27003600格子型球磨机,与Φ2000高堰式双螺旋分级机构成一段闭路磨矿。采用Φ27003600溢流型球磨机并与细筛构成第二段闭路磨矿,最终磨矿细度为-200目占85%以上。(4)选别选别设备选用Φ10502400半逆流式永磁筒式磁选机,进行一、二次选别,选用磁选柱,进行第三次选别,使最终精矿品位达到66.00%以上。(5)精矿精矿脱水采用GYW—12永磁过滤机,滤饼卸入精矿库储存,待装车外运。(6)尾矿尾矿有两种:磁滑轮选出的干尾矿由专用车运至废石场;矿浆尾矿经Φ12000高效浓密机脱水后,给入泵站排入尾矿库,溢流水返回选矿工艺生产流程。选矿工艺流程及选矿工艺平面配置见附图。6.3.4选厂工作制度,生产能力及服务年限(1)选厂工作制度选厂为全年性生产,即每年生产330天。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo其中:破碎筛分每日两班制,每班生产8小时;主厂房为每日三班制,每班生产8小时。(2)生产能力选厂每年处理原矿量为60×104t,每日约为1818.18t。(3)服务年限根据供矿条件,选矿服务年限按30年考虑。6.3.5主要设备选择本着经济实用、成熟可靠,满足工艺前提为原则,确定选矿工艺主要设备。选矿工艺主要设备见附表。6.3.6供矿条件及厂房布置井下矿石由坑口用窄轨电机车送至选厂原矿仓,其供矿标高为460m。根据经济比较确定选厂位置方案,依据地形条件选厂顺山坡:“Z”字形向下布置,充分利用山坡使矿浆自流。选厂±0.00m标高相当于绝对标高430m6.4尾矿设施6.4.1设计依据6.4.1.1.矿方提供的的1/10000地形图6.4.1.2.采选工艺基础资料矿山生产规模60×104t/a年排放尾矿量32.118×104t/a生产服务年限30a(尾矿库设计暂服务20年) efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo工作制度330d/a矿石比重2.8t/m3重量浓度30%排尾粒度-200目占85%尾矿堆积干容重1.24t/m3选矿出口标高430m6.4.2尾矿库容量当生产规模3000吨/日时,年排尾砂量25.9×104m3,本次设计生产年限30a,所需库容量777×104m3。由于尾矿地形条件及堆尾砂堆积高度所限,本次设计暂按20a考虑。解决库容量518×104m3。6.4.3尾矿库址方案尾矿库是选矿厂不可缺少的配套设施,根据现场踏查,结合矿方意见,设计将尾矿库位置选择在选厂西北直线距离约700m处沟内。投产后20a~30a之间用铺号沟作备用尾矿库。该尾矿库区汇水面积0.49km2,沟内植被一般,有树木。库区利用长度800m左右,利用沟底标高430~530m之间,有效库容量为523×104m3,能够满足矿山本次设计生产规模20a限内所需库容量。6.4.4尾矿坝尾矿坝由尾矿初期坝和尾砂坝组成,总坝高86.0m,初期坝顶标高暂定464.0m,初期坝高24.0m,坝长197m。尾砂坝顶标高526.0m,尾砂坝堆高62.0m。尾矿坝比较长应设位移、变形、沉降观测点,便于管理。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo6.4.5库区排水根据《选矿厂尾矿设计规范》ZBJ1-90规定,尾矿库等别表等别全库容V×104m3坝高Hm三1000≤V<1000060≤H<100四100≤V<100030≤H<60相应防洪标准为尾矿库等别三四洪水重现期()初期50~10030~50中、后期200~500100~200该尾矿库库容518×104m3,尾矿坝总高86.0m。根据规范规定,尾矿库等级标准库容为四级库,坝高为三级,尾矿库洪水设防标准按高线三级库计算。初期50~100a;中、后期200~500a一遇。设计考虑诸多因素确定洪水设防标准计算如下:(采用吉林省水文图集所载参数及推理公式)根据洪水计算确定库内采用井洞方式排泄雨洪水,钢筋混凝土排水井3座,排水洞总长1220m。满足库区泄量要求。6.4.6尾矿输送和回水⑴尾矿回水根据地形条件尾矿浆输送为先自流再压力扬送,自流段长350m,钢管直径200mm;压力段采用无缝钢管,管径175mm,输送管线长960m,LSGB型水隔离泵2台(1备)加压扬送。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo⑵尾矿回水选矿厂排放的尾矿浆尾浆属工业废水,无毒无味。矿浆中含水量94.7m3/h,设计考虑尾砂内孔隙水及蒸发损失,尾矿回水率暂按70%计算。尾矿坝下设回水池,回水管线全线自流至选矿厂重复利用,节省新水保护环境。矿山地处北方冬季回水困难可作补充水源。6.4.7需要说明的问题本可研按万分之一地形图进行设计,精度有限,以上所及工程量待下设计阶段核准。6.5建筑、结构工程6.5.1概述通钢某某某矿业公司某某某铁矿工程有以下单项工程:主厂房、破碎筛分厂房、高效浓密机厂房、水源泵站,以及生活福利设施(综合楼、倒班宿舍、锅炉房浴室、干燥)等项工程。6.5.2设计依据主要依据地震烈度为6度,地震加速为度0.05g基本风压0.4KN/m2,基本雪压0.65KN/m2建设场地处于山区,可研阶段未进行地质勘察,借鉴附近工程地质情况,地质情况良好,所建建筑物采用天然地基。建筑抗震设计规范GB50011—2001混凝土结构设计规范GB50010—2002建筑结构荷载设计规范GB50009—2001 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo地基基础设计规范GB50007—2002建筑设计防火规范GBJ16—87(2001年版)6.5.3自然地理条件本区居长白山区,处长白山脉与张广才岭交接处,为底山区。区内山脉走向北北东,绵延很长,山势比较平缓,切割浅,很少见到悬崖。东部较高,海拔600—900m;西部低,海拔400—600m。山间植被掩盖,覆土较厚。6.5.4气候条件矿区属北温带大陆性偏寒森林山区气候。冬寒夏热,年温差很大。据某某某气象站(1971-1980年)观测资料:年平均气温4.2℃。月平均最高气温22.7℃,1972年7月18日达36.3℃。月平均最低气温-17.7℃,1978年1月某日为-40.3℃。6.5.5建筑、结构方案(1)主厂房主厂房长度42m,两跨,跨度分别为18、15m。厂房高度:18m跨屋架下弦为19m,内设一台Q=30/5t桥式起重机,Lk=16.5m;15m跨为10m,内设一台Q=5t抓斗桥式起重机,Lk=13.5m。主厂房为双跨砼排架结构,柱距6m,采用砖维护墙,墙厚370mm。屋面采用梯形钢屋架,屋面铺以彩色压型钢板。排架柱均采用钢筋砼独立基础。(2)破碎筛分厂房厂房长度24m,跨度为18m。厂房高度屋架下弦24m、26m,内设一台 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooQ=15/3t桥式起重机,Lk=16.5m。破碎筛分厂房为单跨砼排架结构,柱距6m,采用砖维护墙,墙厚370mm。屋面采用梯形钢屋架,屋面铺以1.5m×6.0m预应力大型屋面板。排架柱均采用钢筋砼独立基础。(3)其他生产建筑空压站:长:25m,宽:9m,高:4.5m。砖混结构,毛石条形基础。水源泵房:长:10m,宽:6m,高:5m。其中地上3m,地下2m。砖混结构。水源泵房旁设水池,长:20m,宽:10m,深:4m,钢筋砼结构。循环泵房:长:10m,宽:6m,高:5m。其中地上3m,地下2m。砖混结构。水源泵房旁设水池,长:20m,宽:10m,深:4m,钢筋砼结构。矿机专业空压机循环水池:长:10m,宽:10m,深:4m。钢筋砼结构。高位水池:直径:16.5m,深:5m。钢筋砼结构。浓密机厂房:直径:16m,高:7m。砖混结构,毛石条形基础。锅炉房浴池:浴池为单层砖混结构,长:30m,宽:15m,高:3.6m。毛石条形基础;锅炉房为单层砖混结构,长:19.8m,宽:18m,高:4.5m,毛石条形基础。综合楼:二层砖混结构,一层设有食堂,长:48m,宽:10.8m,高:6.3m。倒班宿舍:二层砖混结构,长:57m,宽:13.2m,高:6m。配电室:长:30m,宽:12m,高:4.2m。单层砖混结构,毛石条形基础。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo转运站及皮带通廊:在主厂房及破碎筛分厂房之间设一座转运站,钢筋砼框架结构,钢筋砼独立基础。在9.00m,2.5m,22.5m设三层平台总高度25.5m。长:9m,宽:9m。在主厂房,转运站,破碎筛分厂房之间三条皮带通廊,采用钢桁架,皮带通廊水平投影长度为83m。看坝房:长:3.6m,宽:3.3m,高:3m。单层砖混结构,毛石条形基础。仓库:长:30m,宽:15m,高:4.5m。单层砖排架结构,毛石基础。除尘站:长:6m,宽:6m,高:4.5m。单层砖混结构,除尘器设在站房顶部,设备重10t。另设钢烟囱一座,高:20m,上口直径700mm。干燥间:长:9m,宽:6.6m,高:4.5m。单层砖混结构,毛石基础。尾矿输送泵站:主厂房内:长:18m,宽:9m,高:9m。单层砖混结构,毛石基础;副厂房内:长:12m,宽:3m,高:3.5m。单层砖混结构,毛石基础。6.5.6建筑面积总建筑面积为7933m27.主要原料、燃料供应7.1主要原料供应7.1.1原料供应通钢某某某矿业公司某某某铁矿生产规模为60×104t/a。地下采矿生产能力为50×104t/a,原料自给率为83%。外购铁矿石为10×104t/a,占总原料量的17%。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo7.1.2材料供应矿山所需材料主要是钢球、润滑油、炸药等,均由市场采购,汽车运输。7.2主要燃料供应本工程锅炉房燃料采用煤。由市场采购,用汽车运至矿山。7.3主要原材料年需要量矿山主要原材料、燃料需要量如下:(1)铁矿石:60×104t/a(2)炸药:359.48t/a(3)钢球:1200t/a(5)润滑油:6284Kg/a(6)煤:2000t/a8总图运输与公辅工程8.1总平面布置8.1.1平面布置企业由采矿、废石堆场、选矿厂、办公、生活区、水源地等部分组成。根据矿山的开采规模,矿区的地形、地貌等条件,对平面布置分述如下:采矿——采用地下开采,主平硐口位于头道河东侧的460m标高处,生产能力为50×104t/a。废石堆场——位于头道河东侧460m标高处的主坑口东侧,且布置在全年盛行风向的下风侧。废石堆场平均堆高约12m,废石容量约68400m3 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo,废石堆场坡度按1:1.5放坡。干磁选抛尾废石运回井下进行充填,选厂不设废石场。选矿厂——位于460m主坑口西侧,距主坑口约55m处。选矿厂受矿标高为460m。配电室——配电室布置在采矿区主坑口北侧。选矿厂主厂房的东侧。距坑口约100m。水源地——水泵房位于头道河附近,在办公区西侧,距办公区约500m。高位水池在办公区的南侧,距办公区约320m。高位水池所在地标高约490m。办公、生活区——办公、生活区由综合楼、倒班宿舍、锅炉房等组成。位于选矿厂西侧,距选矿厂约370m。空压站——空压站设在某某某460m坑口附近。根据业主要求火药库、选厂化检验室、机修车间均利用桦矿原有的车间(有偿使用)。并且桦矿原有的50t火药库已通过安全现状评价。8.1.2矿区占地矿区占地22.4×104m2其中:采、选工业区及其附属设施:22500m2办公及生活区:7500m2尾矿库:19.4×104m28.1.3企业运输:厂外运输采用公路运输方式。原材料及燃料运输主要靠汽车运输。成品铁精矿粉由汽车运至红石火车站。其余备件均采用汽车运输。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo厂内矿石的运输,采用窄轨铁路运输方式。460m平硐矿岩采用窄轨电机车运输,运至坑口附近的选厂原矿仓。厂内运输设施及设备:井下运输利用7t窄轨电机车运输。运输设备:救护车:1辆小轿车:1辆大客车:1辆矿区内拟设5.5m宽砂石公路型道路,以满足交通运输、防火的要求。8.1.4年运量:内部运量:矿石:50×104t/a废石:10.074×104t/a基建期废石:10.8×104t外部运量:运入量:矿石:10×104t/a炸药:359.48t/a导管及雷管:32.43万发/a钎钢:27.68t/a机油:6284Kg/a坑木:1045m3/a合金片:810Kg/a煤:2000t/a生活物资:250t/a运出量:铁精粉:17.808×104t/a efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo8.2公辅工程8.2.1给排水设施8.2.1.1概述本设计为吉林省通钢某某某矿业公司某某某铁矿工程配套给排水设计。所需生产新水补水由新建生产水源泵站供给;生活用水由厂区内新建深井供给;污水经地埋式一体化设备处理达到排放标准后直接排入矿区附近河流的下游水体中。8.2.1.2设计依据《建筑给水排水设计规范》GBJ15-88《建筑设计防火规范》(2001版)GBJ16-87《室外给水设计规范》(1997版)GBJ-13-86《室外排水设计规范》(1997版)GBJ14-87《工业循环冷却水处理设计规范》GB50050-95《给水排水管道工程施工及验收规范》GB50268-97《泵站设计规范》GB/T50265-97及工艺等专业委托的用水条件。8.2.1.3设计范围及设计基本原则(1)设计范围包括整个矿区的生产水源,选矿厂生产新水及消防给水系统,生活供水系统及排水系统设计(选矿区循环水系统及坑内用水由工艺专业负责设计)。(2)设计基本原则 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo坚持节水、降低能耗,争取将水的循环利用率进一步提高的原则;坚持保护环境,生活污水经处理达标后才能排放的原则;工艺先进技术可行,经济合理的原则;节约投资,水质要满足生产用水标准。8.2.1.4生产用水量选厂总用水量为8182m3/d,循环水量为6054m3/d,新水补充量为1636m3/d,尾矿库回水为492m3/d。总循环率为80%。8.2.1.5矿区供水设施(1)生产水源矿区生产新水及消防用水水源需新建,水源建在尾矿库下游头道河旁。由水源泵站、取水头两部分组成。取水型式为低坝拦水,由取水头加辅射管联合取水。取水经管道自流至水源泵站的沉砂池及清水池后,由水源泵扬送至山顶800m3高位生产消防合用储水池,供选矿厂生产新水及消防给水。(2)输配水设施及消防给水系统输配水设施矿区生产新水及消防用水由选厂附近山顶800m3高位生产消防合用储水池供给,供水管从水池铺设至厂区后在厂区形成环状管网,供生产新水及消防用水。消防给水系统根据《建筑设计防火规范》,矿区室外消防用水量为25升/秒,一次火灾延续时间为2小时,室内消防用水量为10升/秒。消防供水由新建 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo800m3高位生产消防合用水池供给,在厂区形成环状管网,在管网上适当位置设置室外地下式消火栓,消火栓间距不大于120m,保护半径不大于150m;主厂房内设置若干个室内消火栓及手提式干粉灭火器。(3)生活供水设施矿区生活用水主要为综合楼(含食堂)、锅炉房及洗浴用水,生活用水量30m3/d,生活给水可在矿区附近的上游河边打深井解决。8.2.1.6矿区排水设施生产排水主要为尾矿液,通过尾矿输送泵站将尾矿液输送到尾矿库内。生活污水经地埋式一体化设备处理达到排放标准后与不含有害成分的少量生产排水直接排入矿区附近河流的下游水体中。8.2.1.7安全供水设在山顶的800m3的高位水池兼顾生产、消防用水,并起到调节水量、稳定水压、贮备事故用水等用途。8.2.2电力及电信8.2.2.1设计依据、范围设计依据:根据本专业相关规范及工艺委托。设计范围:本设计为某某某铁矿工程的电气设计。8.2.2.2供电负荷(1)供电负荷的电压等级供电负荷的电压等级如下:空压机、球磨机AC10kV efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo其它设备AC380/220V(2)计算负荷本工程总装机容量为6054kW,工作容量为4465kW,计算负荷Sj为3767kVA,Pjs为3488kW,Qjs为1424kVAR,负荷计算详见负荷计算表,均为三类负荷。年耗电量为1.54x107kW.h。负荷计算表序号名称装机容量工作容量计算负荷备注(变压器容量)Pjs(kw)Qjs(kVAR)Sjs(kVA)一高压负荷(10kV)1空压机12008006404802格子式球磨机4004003202403溢流型球磨机400400320240小计200016001280960二低压负(0.4kV)1选厂1320116993547810501600kVA efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoocosØ=0.92采场1716111989544710001250kVAcosØ=0.93综合楼10010080604锅炉房11810180605杂动力200200160120小计4184013201443506尾矿泵站540360288216130500kVA7循环泵604536274580kVA小计40543095217713122541变损31152折10kV侧4054309522081464一.二项合计60544465348824244247COSф=0.82无功补偿-1000总计60544465348814243767COSф=0.928.2.2.3供电回路及电压等级的确定本工程的供电回路为一路,电压等级为10kV,线路为架空敷设。8.2.2.4电源选择电源取自桦矿变电所(变电所增容部分由桦矿自己负责改造),线路为LGJ型架空线,改建后的变电所有能力为拟建的10kV配电所及空压站10KV配电所供电。8.2.2.5场内供电方式及设备设施本工程在选厂附近设10kV efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo配电所一座,主接线形式为单母线单段式,所内设中置式真空开关柜,以放射式的方式分别为高压电机和动力变压器供电。在10kV及0.4kV侧设无功补偿装置,补偿后功率因数为0.92。另在空压站附近设10kV配电所一座,主接线形式为单母线单段式,所内设中置式真空开关柜,以放射式的方式分别为高压电机供电。在井下设硐室一座,为井下低压负荷供电。设5台10/04kV的动力变压器,为本工程所有低压设备供电。8.2.2.6防雷接地房屋采用避雷带防直击雷接地电阻小于10Ω。为井上设备供电的变压器中性点接地。为井下设备供电的矿用变压器中性点不接地。采区及井下设漏电保护。所有设备的金属外壳均做保护接地,建立坑内保护接地系统,接地电阻小于2Ω。主接地极应设在井下水仓或积水坑中,且应不少于两组.局部接地极可设于积水坑,排水沟或其它适当地点。8.2.2.7电信系统的设置本工程的电信系统设置如下:30门调度电话总机一套和行政电话6部。调度电话总机设在综合楼。8.2.2.8电信线路本工程的调度总机中继线和行政电话线路由桦矿电信站引来线路为10对电话电缆,办公楼至各车间的线路均为电缆沿杆架空敷设。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo8.2.3暖通8.2.3.1设计依据(1)《采暖通风与空气调节设计规范》(GB50019-2003)(2)《大气污染物综合排放标准》GB16297-1996(3)《工业企业噪声控制规范》GBJ87-85(4)相关专业设计委托资料(5)气象资料冬季采暖室外计算温度-25℃冬季通风室外计算温度-18℃夏季通风室外计算温度27℃冬季室外计算平均风速3.0m/s夏季室外计算平均风速2.5m/s极端最低温度-40.2℃年主导风向SW8.2.3.2设计内容本工程暖通专业主要包括采暖通风及除尘设计。(1)采暖本工程选厂区主厂房及所有辅助设施均要求采暖,总耗热量为8.2x105W。热媒为95/70℃低温水,来自室外热力管网。干燥间采用抽拉式衣架、自然通风换气,热媒为0.2Mpa高压蒸汽、圆翼型散热器加热的方式进行烘干。(2)通风 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo锅炉间、水泵站、浴池等设置轴流风机进行通风换气。(3)除尘按选矿工艺生产流程,在破碎、筛分等产尘点设除尘设施,除尘系统总风量为40000m3/h。含尘气体经布袋除尘器净化后,由风机,烟囱排入大气,净化后气体排放浓度达到国家标准要求。除尘系统主要设备选择如下:a、除尘器选择选用回转反吹扁袋除尘器过滤面积为760m2过滤风速为0.96m/min。b、风机选择选用G4—73型离心风机风量为48000m3/h,风压为3018Pa电机功率为N=55KW8.2.4热力8.2.4.1设计内容本工程热力专业设计内容为锅炉房及厂区热力管网。(1)锅炉房该区采暖热负荷:0.82MW;浴池生活用蒸汽:0.5t/h,干燥间加热用蒸汽0.2t/h。总耗汽量0.7t/h。根据以上热负荷,选择一台1.4MW热水锅炉作为冬季采暖热源;另选一台1t/h蒸汽锅炉(全年运行)为浴池及干燥间提供所需蒸汽。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo为了满足国家标准对烟气中粉尘和二氧化硫等有害气体的排放要求,每台锅炉各配置除尘脱硫净化器一台。新建锅炉房内设有锅炉间、辅助间等,总建筑面积356m2,烟囱为钢制,上口直径Ф400mm,高为30m。(2)热力管网室外热力管道敷设方式为直埋敷设,保温材料为聚氨酯,保护层采用夹克皮。9节能措施9.1概况某某某铁矿采用地下矿开采,磁铁矿选矿工艺,采矿50×104t,选矿50×104t,年产铁精粉17.808×104t,年工作天数330天。本工程除工艺设施外,还有空压站、配电室、循环水泵站、锅炉房等设施。在生产过程中的燃料消耗和动力消耗有,锅炉房消耗动力煤,空压机冷却循环水补充部分新水,各类设备用电,此外生产用压缩空气等动力消耗。9.2能源消耗能量平衡表项目实物量折算系数折标准煤一投入1.电力1.54x107kwh/a0.0004046221.62.补充用新水54x104m3/a0.000154 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo3.锅炉用煤2000t/a0.601200投入合计7475.6二单位产品能耗(363.44MJ/t矿)12.4kg标煤/t矿注:蒸气及压缩空气能耗以煤和电耗计入。经能量平衡计算,该工程投入能源7475.6t标煤/年,单位产品能耗为12.4kg标煤/t矿,折363.44MJ/t矿。9.3节能措施(1)地下矿开拓采用平峒溜井开拓。(2)选矿厂利用硐口附近的山坡,自上而下进行配置,运输方式采用电机车运输。(3)矿井提升采用罐笼配平衡锤提升。(4)压缩空气供应管线短,减少压缩空气损失和压力降。(5)采用低损耗电力变压器,并设补偿装置。(6)采用高效浓缩机、添加絮凝剂等方法,尾矿输送浓度达到35%以上,生产用水均采用循环水,循环率达到85%。9.4节能评价该工程工序总能耗7475.6t标煤/年,单位产品能耗为12.4kg标煤/t矿,折363.44MJ/t矿,低于《钢铁企业设计节能技术规定》YB9051—98采矿厂和选矿厂总能耗指标557MJ/t矿。综上所述,某某某铁矿工程可研设计阶段,由于采取了多种有效节能措施,在能源利用上是先进的、合理的。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo10环境保护10.1设计依据《污水综合排放标准》GB8978-1996《锅炉大气污染物排放标准》GB13271-2001《大气污染物综合排放标准》GB16297-1996《工业企业厂界噪声标准》GB12348-199010.2主要污染源﹑污染物采﹑选矿过程中产生的废石和粉尘锅炉排放的烟气少量生活污水各种机械设备产生的噪音尾矿渣﹑锅炉炉渣﹑生活垃圾10.3主要治理措施(1)采矿过程中产生的粉尘采用湿式凿岩,装卸及爆破后洒水控制粉尘飞扬。选矿破碎﹑转运﹑筛分等过程中产生大量粉尘,在工艺设备密闭的基础上,于尘源处设置局部吸尘罩,由吸尘罩捕捉的含尘气体经布袋除尘器净化后排至大气,其排尘浓度可满足国家规定标准的要求。采选产生的废石,主要用于井下充填,井下未被风化的较坚硬的岩石可用于筑坝。初期堆放废石的临时堆放场地,先将表土铲集起来,废石回填井下后,用原土覆盖废石场地,植树种草,绿化美化环境。(2)锅炉烟气中主要污染物为烟尘和SO2,烟气经除尘器脱硫﹑ efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo除尘至满足国家排放标准后,由烟囱排至大气。(3)厂区内只有少量生活污水外排,生活污水经生化一体式装置处理后,排入厂区下游的水体中。(4)噪声的控制主要采用隔声﹑销声和减震等措施。在风机出口处安装销声器,机械设备采用减震器,设隔音操作室等,凿岩爆破人员﹑空压机操作及选厂人员等可戴防护耳包进行个体防护。通过以上措施可以达到厂界噪声标准要求。(5)尾砂存在尾矿坝内保存,并在其上敷土植被,炉渣可用于筑路,生活垃圾定期外运到垃圾场统一处理。10.4厂区绿化厂区绿化不仅可以美化环境,还可以吸附粉尘,清洁空气,减轻环境污染。设计采用点﹑线﹑面相结合原则,在道路两侧﹑厂区空地和厂区边缘等处进行绿化。10.5环保监测矿山设兼职环保机构(专职安全机构兼),分别由矿领导﹑化检验人员﹑安全人员与各二级部门主管领导担任,责任落实到人,该机构还具有安全卫生教育﹑环境保护培训﹑安全卫生及环保监测等功能,保证满足环境要求。11劳动安全与卫生11.1设计依据标准GB16424-1996金属非金属地下矿山安全规程;GB6722-2003爆破安全规程; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooGB50070-94矿山电力设计规范;GB18152-2000选矿安全规程;GB3836.1~4-2000爆炸性环境用防爆电气设备;GB3836.5~8-87爆炸性环境用防爆电气设备;GB3836.5~7-2004爆炸性环境用防爆电气设备;GB3836.8-2003爆炸性环境用防爆电气设备;GB50058-92爆炸和火灾危险环境电力装置设计规范;GB13869-92用电安全导则;GB50054-95低压配电设计规范;GB12158-90防止静电事故通用导则;GB8196-2003机械安全防护罩装置固定式和活动式防护罩设计与制造一般要求;GB12265-97机械防护安全距离;GB10827-99机动工业车辆安全规范;GB50033-2001建筑采光设计规范;GB50034-2004建筑照明设计标准;GBJ87-85工业企业噪声控制设计规范;GB50019-87采暖通风与空气调节设计规范;GB15630-95消防安全标志设置要求;GB50055-93通用用电设备配电设计规范;GB50053-9410kV及以下变电所设计规范标准;GB14161-93矿山安全标志; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooGB2893-2001安全色;GB2893.1-2004图形符号安全色和安全标志第一部分:工作场所和公共区域中安全标志的设计原则;GB3805-93安全电压;ZBJ1-90选矿厂尾矿库设计规范;金属非金属矿山排土场安全生产规则。11.2劳动安全卫生11.2.1有害因素识别11.2.1.1粉尘采矿凿岩、爆破、装岩、放矿和选矿厂矿石破碎等作业环节,能够产生有害粉尘,作业人员长期吸入含有超规定浓度的粉尘,易患硅肺病或尘肺病。11.2.1.2有毒有害气体爆破和火灾等均会产生有毒有害气体,主要有一氧化碳(CO),二氧化氮(NO2),二氧化硫(SO2)和硫化氢(HS)等,当吸入超标浓度的有害气体,会使人致病,甚至死亡。11.2.1.3噪声部分采、选设备会产生较大的噪声,使人产生听力和神经的障碍。各种矿山作业噪声值序号作业项目噪声值dB备注1采矿作业72~118 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo2选矿厂破碎、磨矿100~1023空压机88~924锅炉房引风机80~9011.2.1.4坑内作业条件本矿坑下采矿,井下空气潮湿、阴冷,易致人患风湿。11.2.2危险因素识别11.2.2.1冒顶片帮本矿矿岩稳固,但遇断层或接近风化带,处理不当会危及作业人员的安全。11.2.2.2岩石错动采空区不及时处理,有可能发生大面积冒顶或产生岩层错动,给坑下和地表造成安全威胁。11.2.2.3设备旋转部件选矿厂、坑内采掘等设备带有高速旋转部件,对工作人员造成威胁。11.2.2.4井巷工程危险因素井巷工程在设计、施工和生产过程中,没有执行相关规程、规定,会因此造成事故。11.2.2.5溜井危险因素溜井管理不善会造成人员设备坠井,溜井放空后,再放矿时损坏设备,造成事故。11.2.2.6炸药和起爆器材 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo本矿设计每天使用炸药和相应的起爆器材(雷管、导火线、导爆管等),其在运输、保管、贮存、使用过程中未按相关规程作业,有可能发生事故,造成严重后果。11.2.2.7尾矿库危险因素坝基处理不当会导致坝体裂缝、沉陷;边坡过陡会导致坝体失稳,排水不及时会导致管涌、决口、坝体失稳;尾矿坝泄漏会导致污染、泥石流等。11.2.2.8硐口冻患主平硐口为入风通道,冬季结冰,影响运输。11.2.2.9坑内水患坑内50%的钻孔未封孔,开采时易引起钻孔导水事故。11.2.2.10坑内火灾坑内存放的易燃物,容易引起坑内火灾的发生。11.2.2.11作业场所较大的高差该类事故多发生在竖井、天井、漏斗、溜井等高处作业场所。井下多数作业场所的高差在2m以上,与此相关,作业人员与作业场所内的物体都具有较大的势能。当人员的势能释放时,可能发生坠落或跌落事故;当上部物体具有的势能转变为动能时,可能击中人体,发生物体打击事故,造成人员伤亡和设备的破坏。11.2.2.12机械及车辆运行该矿使用卷扬机、电机车运输、空压机、水泵等多种生产机械,其传动部分都具有较大的动能,若人员不慎与之接触,就可能受到伤害。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo井下运输采用电机车牵引矿车,在运输巷道不规范的狭窄处(巷道及其人行道宽度不足),或者由于信号不好或信号误发、司机违章操作等原因,可能发生运行的车辆挤撞行人事故或机车掉道,砸伤人员和设备损坏。11.2.2.13电气设施根据该矿的生产工艺和生产环境,电气系统和设备的危险有害因素识别如下几个方面:(1)火药库属于爆炸和危险环境,电气设备未满足相应的防爆等级,会发生爆炸事故。(2)电气设备无国家制定的安全认证标志,或使用国家颁布的淘汰产品,会发生电气设备的有关事故。(3)电气火花会引起火灾。(4)电气保护不可靠,如触电保护、漏电保护、短路和过载保护、绝缘、电气隔离、安全电压、防雷、电气安全距离等不符合有关规程要求,会发生触电事故。(5)事故状态下的照明、消防、疏散用电及应急措施用电的不可靠,会发生相关的安全事故。11.2.2.14竖井提升系统的伤害竖井提升系统是井下生产的主要环节,操作点多,运输的频繁程度高,既要运输废石,又要提升设备和材料(必要时提升人员)。因此,在矿山井下生产中,出现事故的频率一般较高,并且一旦发生事故,矿山的损失是严重的。(1)提升过卷。操作人员违章操作、精神不集中,过卷装置失灵等原因,会造成财产重大损失以及破坏天轮基础,使钢丝绳严重受损等。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo(2)人员、矿车坠井,各矿山均有类似事故发生。卷扬工精神不集中,在中段推车,人车一起坠入竖井。没有罐笼门、井门,罐门、井门不符合规程要求、阻车器不灵活或者没关竖井井门和车场挡车器等;因其人车一起坠入竖井,酿成重大的伤亡事故,造成人员死亡、车辆损毁。司机离开电机车后突然恢复送电,由于电机车没有制动使电机车无人驾驶自动行走,把矿车推入竖井内造成财产损失。(3)竖井钢丝绳发生断绳事故。在一般正常生产矿山较少发生此种事故。一旦发生断绳,将会造成人员伤亡和矿山井下停产。其原因主要是钢丝绳超期服役,日常对钢丝绳的检查不够或根本没有检测制度,安全卡失灵或平时安全卡不维护检修、试验。(4)竖井蹲罐事故。卷扬工操作失误,操作时精力不集中,以及过卷装置、安全卡失灵等,都会导致蹲罐事故。轻度蹲罐会使罐笼淹没到竖井井下水窝,重度蹲罐会使罐笼报废、财物损失。(5)人和物料混合乘罐,造成人员伤害。设计罐笼不准乘人,人员不遵守规定,或信号工玩忽职守,人和材料混装,常见的是扛钎工把钎子与人混乘一罐,一旦罐笼运行中钎子散花,必将对人员造成重大伤害。(6 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo)竖井提升信号不准或误传信号造成伤害。竖井提升的实现是靠信号工与卷扬工用信号包括声响和灯光的联络进行的,如果信号不准、不清晰或者误传信号,造成不该运动的时候罐笼运动或运动方向错误都将造成重大的伤害。在各中段井底车场,推车工往罐笼推车时,矿车在罐笼内掉道,由于恢复矿车上道的作业空间有限,危险性是比较大的,如果信号联系不当,将可能对人员产生严重的伤害。(7)罐笼检修没有按照规范操作,引起伤害事故。11.2.2.15自然灾害主要为雷击等。雷电可能造成很严重的后果。如果防雷设施设计不当或损坏,存在装置及建筑物因雷击造成损坏,在具有爆炸危险的场所,甚至能引起爆炸或火灾。11.3安全对策措施11.3.1加强矿山安全管理a、矿长对本矿的安全工作负责矿长必须经过安全培训和考核,具备安全专业知识,具有处理安全生产和处理矿山事故的能力;b、矿山设立专职安全机构和负责人和专职安全员。这些人员必须经过主管工业部门或相当部级的总公司指定单位进行不少于一个月的专业培训,并经考核取得合格证后方可上岗;c、对职工进行经常性安全教育,每年不少于20小时;d、新工人入井,应进行不少72小时的安全教育;e、采用新工艺、新技术、新设备,应对有关人员进行培训;f、参加劳动、参观、实习人员、下井前必须进行安全教育,并有专人带领。11.3.2设计可靠安全通道a、某某某铁矿地下采矿,一期460m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo以上四个中段均有两个同地表的安全出口,间距大于30m,且均设有梯子间和照明;各平硐口均高于当地侵蚀基准面40m以上;b、矿山的各种安全出口,能满足工人在一定时间内从任何工作地点撤出的可能性;坑内设避难硐室内,室内引入压风管,以能供应新鲜空气,并备有自救器、饮用水,方便食品等,硐室有隔离门;c、井口和各阶段井底车场以及主要工作地点都必须设置联系信号(如声光灾害报警装置、通讯联络电话等);d、井口、井下各阶段井底车场,各硐室、各主要工作地点设置相应的消防器材等;e、井下各安全线路应设照明,各分道口应设明显的路标。11.3.3崩落区的安全措施a、矿床虽然赋存于山区地带,山高林密,但为了防止意外事故,在预计岩石错动范围,埋设警告标志,必要时加设铁丝网围护,以免人、畜误入,发生事故;b、主要建构、筑物均布置在崩落、错动范围之外;c、采空区可进行事后充填,充填料不足时可封闭空区或崩落顶板充填空区。11.3.4坑内及选厂防尘按照国家防尘法规定要求,矿岩含游离SiO2大于10%时,矿井空气含尘标准应小于2mg/m3,本矿照此规定,设计中采取以下措施:a、井下采掘凿岩一律采用湿式作业,不准打干眼;b、溜矿井及放矿漏斗设喷雾撒水装置; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooc、掘进出渣,采场放矿等作业均应喷雾洒水,以免粉尘飞扬;d、设计各中段均有两个出口通地表,主要采用机械通风,并配备足够的局扇辅助通风;e、坑口设3名专职通风工;f、配置相应的测风、测尘仪表;g、凡入井人员均需按冶金安全规程进行安全教育并经考试合格后方可入井,并应经常进行安全教育;h、在主要井巷设测风点,测风、测尘;i、对选矿厂各产尘点进行密闭,通风和除尘;j、对选厂厂房内整体通风。11.3.5坑内防火及防炮烟中毒据现有资料,该矿坑内存放的易燃物(坑木,油料等)有造成坑内外因火灾的可能,采取以下措施:a、废坑木、用过的油棉纱等及时运出坑外处理;b、在每个中段及主要硐室均配备灭火器、沙箱、锹、斧等灭火工具;c、放炮后,按规定通风,待炮烟浓度降至安全值后方可进入工作面;d、在坑口配备氧呼吸器,并定期检查,以便在发生炮烟中毒或其他缺氧条件下进行抢救时使用。11.3.6爆破安全措施本可研严格执行国家标准局批准的自2003 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo年起实行的《爆破安全规程》(GB6722-2003)。a、在460m中段设坑内火药库,容量小于3t,不得超量储存;b、坑内火药库有两个出口,每条通路有2个以上直角弯,并有通往上中段的通风天井;c、为保证爆破工作之安全,采用非电导爆系统起爆,以杜绝杂散电流之干扰;d、严格按规定和使用量发放炸药和起爆器材,多余时应及时交还坑内火药库。11.3.7顶板管理a、分段采矿法,作业人员在专用巷道中作业,不进入采空区;b、设专职安全员,对作业面检查,认为安全合格方可派班作业;c、对有安全隐患的作业面,要及时处理,不准带险作业;d、遇有断层等不良岩层时,要及时支护;e、对分段采矿法采空区,进行事后充填,充填料不足时进行密闭或崩落顶板充填空区;f、遇有平行脉,应先采上盘矿体。g、强风化带内尽可能不布置工程,必须布置时应加强支护,保证工程及人员安全。11.3.8供电安全技术a、坑内照明采用安全电压;b、配电所等均设防雷保护;c、配电所设漏电监测装置; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFood、井下为中性点不接地供电系统;e、井下不设备用电源,入井人员应从地表平硐口进入各中段,不得从提升井进入,且必须自带手电。11.3.9噪声防治a、设计选用噪声相对较低的设备;b、空压站、选矿厂均设隔音休息室;c、锅炉房引风机设消音装置;d、凿岩工戴防护耳包。11.3.10个体防护a、井下作业人员发放棉工作服、胶鞋、安全帽;b、其他工种发放相应工作服;c、在产尘地点作业人员戴防尘口罩。11.3.11井巷安全措施a、施工前,必须组织施工人员学习施工组织设计。施工中,必须按照施工组织设计的规定作业,保证工程规格质量;b、提升竖井必须有运行正常的提升设备和梯子间;c、行人的水平运输巷道应设人行道,其有效净高不得小于0.9m;d、在水平巷道中,运输设备之间以及运输设备与支护之间的间隙,应不小于0.3m;人行道的安全距离应大于800mm,车场应大于1000mm;e、竖井及各中段的连接处,必须有足够的照明和设置高度不小于1.5m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo的栅栏或金属网,并必须设置阻车器,进出口设栅栏门。井筒与水平大巷连接处,必须设绕道,禁止人员通过提升间;竖井井口设挡罐梁,井底设托罐梁,井口、井底设楔形罐道,罐笼设防坠设施。f、运输、提升系统应按《金属非金属地下矿山安全规程》相应规定制定操作规程,并严格遵守;g、必须建立顶班管理制度,对顶板不稳定的井巷、加强支护,并指定专人负责检查;h、天井设盖板,人行天井按规定设梯子间和照明,溜井上口设格筛。11.3.12溜井安全措施a、溜井上口设格筛,并经常保持良好状态;b、溜井不得放空,不合格的大块矿石、废旧钢材、木材和钢丝绳等杂物应严禁放入井内;c、溜井口不准有水流入;d、严禁人员直接站在溜井口、漏斗的矿石上,或进入溜井或漏斗内处理堵塞;e、采用特殊方法处理堵塞,需经主管矿长批准。11.3.13选厂安全措施a、严格控制破碎、筛分工艺参数,提高筛分效率,保证工序生产均衡;b、有效排出进入圆锥破碎机矿石中的软件等有害杂物;c、原矿仓、粉矿仓,工作人员人工拨料时,应系安全带,并有专人监护;d、人员进入球磨机内清理时,应设指示牌,外有人监护; efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooe、所有电机壳及所有正常、非正常电气设备外壳均设可靠接地;f、选矿厂的继电保护装置,应符合《工业与民用电力装置的保护和自动装置设计规范》的要求,并每年对其进行一次调试;g、选矿厂的主厂房、破碎厂房等均应设避雷装置,其防雷设施应符合《建筑防雷设计规范》的要求;h、加强个体防护,操作人员配发安全帽、手套及防尘口罩等;i、进料、检修孔洞设置护栏或盖板,传动部件加护罩,破碎系统设置安全联锁装置;j、设备的裸露转动、传动部分均设置安全防护罩,皮带设置防逆转等装置,危险场所和要害部门均设置醒目安全标志;k、选厂起重时,应按照有关规定操作,尤其是非标起重设备,一定要保证起重安全。11.3.14爆破及爆破器材管理(1)安全管理a、明确规定每次爆破的地点和时间,爆破负责人,进行统一指挥和管理;b、爆破后,爆破员必须按规定的等待时间进入爆破地点,确认炮烟散尽且检查无冒顶、危石和盲炮等现象。(2)检查检验a、购进及发放爆破器材时要予以检验,保证型号和质量满足要求;b、爆破作业前检查爆破器材是否完好,型号是否一致;c efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo、爆破作业前检查点火作业范围内是否淋水,设备和人员是否疏散;d、检查作业范围内是否有残盲炮。(3)爆破设计及操作a、合理设计起爆方式,避免产生残盲炮;b、在残眼一定距离外打新眼,严禁处理残盲炮时硬拉;c、严格按设计规定作业,避免出现装药过于集中或装药量过大等现象。(4)作业人员素质a、加强作业人员的教育,提高其操作能力,尽量避免操作失误的现象的发生,作业人员必须持证上岗;b、严格按安全规程的要求作业。(5)坑内火药库建设和管理a、炸药火药库建设严格按《爆破安全规程》(GB6722-2003)和《中华人民共和国矿山安全法》的相关要求建设;b、制定严格的器材登记和领取管理制度;c、火工材料运输、使用按照爆破安全规程操作。11.3.15尾矿系统安全技术对策措施(1).尾矿库管理a、矿山应在规定管辖的范围内指定或设立相应的机构负责对尾矿库安全管理,制定适合本单位实际情况的规章制度和责任制,配备与实际工作需要相应的专业技术人员或有实际工作能力的人员负责尾矿库的安全管理工作,保证必须的安全生产资金。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoob、企业必须严格按照设计文件的要求和有关技术规范,做好尾矿浓缩分级、放矿筑坝、回水排水、防汛度汛、抗震等安全检查和监测工作。c、未经技术论证和安全生产监督管理部门的批准,不得随意变更下述涉及尾矿库安全的事宜:筑坝方式;坝型、坝外坡坡比和最终坝轴线的位置;坝体防渗、排渗及反滤层的设置;排洪系统的型式、布置及贮存;设计以外的尾矿、废料或废水进库等。d、必须经常巡视库周山体,发现滑坡及异常现象要及时处理。e、尾矿库使用到设计最终坝高的1/2—1/3高度时,应对尾矿堆积坝进行工程地质勘察和稳定性分析。f、企业必须建立下列尾矿库管理档案:建设文件及有关原始资料;组织机构和规章制度建设;特种作业人员的安全技术培训和持证上岗情况;防洪抢险组织和防洪物质的准备情况;尾矿库抗洪抢险措施;尾矿库各构筑物运行指标和实测数据;事故隐患的整改情况。(2).尾矿排放与筑坝 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooa、尾矿坝滩顶高程必须满足生产、防汛、冬季冰下放矿和回水的要求。b、尾矿筑坝必须有足够的安全超高、沉积干滩长度和下游坝面坡度。c、每一期筑坝充填作业之前,必须进行岸坡处理。岸坡处理应作隐蔽工程记录,如遇泉眼、水井、地道或洞穴等,要采取有效措施进行处理,经主管技术人员检查合格后方可充填筑坝。d、上游式尾矿筑坝法,应于坝前均匀分散放矿,修子坝或移动放矿管时除外,不得任意从库后或库侧放矿。同时满足以下要求:粗颗粒尾矿沉积于坝前,细颗粒排至库内,在沉积滩范围内不允许有大面积尾泥沉积;沉积滩顶应均匀平整;沉积滩坡度及长度等应符合设计的要求;严禁矿浆沿子坝坡址横向流动冲刷坝体;放矿矿浆不得冲刷坝坡;放矿应有专人管理。e、坝体较长时应采用分段交替放矿作业,使坝体均匀上升,应避免滩面出现侧坡、扇形坡或细颗粒尾矿大量集中沉积于一端或一侧。f、放矿口的间距、位置、同时开放的数量、放矿时间以及水力旋流器使用台数、移动周期与距离,应按设计要求或作业计划进行操作。分散放矿支管、导流槽伸入库内的长度和距滩面的高度应符合设计要求。g efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo、为保护初期坝的反滤层免受尾矿水冲刷,应采用多管小流量的放矿方式,以利尽快形成滩面,并采用导流槽或软管将矿浆引至远离坝顶出排放。h、冰冻期、事故期或由某种原因确需长期集中放矿时,不得出现影响后续堆积坝体稳定的不利因素。i、每期子坝堆筑完毕,应进行质量检查,检查记录需经主管技术人员签字后存档备查。主要检查内容:子坝剖面尺寸、长度、轴线位置及边坡坡比;新筑子坝的坝顶及内坡滩面高程、库内水面高程;尾矿筑坝质量。j、尾矿滩面及下游坝坡面上不得有积水坑。k、坝外坡面维护工作可视具体情况选用以下措施:坝面修筑人字沟或网状排水沟;坡面植草或灌木类植物;采用碎石、废石或山坡上覆盖坝坡。(3).尾矿库水位控制与防汛a、控制尾矿库水位应遵循的原则:在满足回水水质和水量要求前提下,尽量降低库水位;当回水与坝体安全对滩长和超高的要求有矛盾时,应确保坝体安全;水边线应与坝轴线基本保持水平。尾矿库实际情况与设计要求不符时,应在汛期前进行调洪验算。b、汛期前应采取下列措施做好防汛工作: efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo明确防汛安全生产责任制,建立值班、巡查和下游居民撤离方案等各项制度,组建防洪抢险队伍;疏通库内截洪沟、坝面排水沟及下游排洪河(渠)道;详细检查排洪系统及坝体的安全情况,要根据实际条件确定排洪口底坎高程,将排洪口底坎以上1.5倍调洪高度内的堵板全部打开,清除排洪口前面漂浮物,确保排洪设施畅通;库内设清晰醒目的水位观测标尺,表明正常运行水位和警戒水位;备足抗洪抢险所需物资,落实应急救援措施;及时了解和掌握汛期水情和气象预报情况,确保上坝道路、通讯、供电及照明线路可靠和畅通。c、排除库内蓄水或大幅度降低库水位时,应注意控制流量,非紧急情况不宜骤降。d、未经技术论证,不得用常规子坝拦洪。e、洪水过后应对坝体和排洪构筑物进行全面认真的检查与清理。发现问题应及时修复,同时,采取措施降低库水位,防止连续暴雨后发生垮坝事故。f、不得在尾矿滩面或坝肩设置泄洪口。有地形条件的尾矿库,可设置非常排洪通道。g、尾矿库排水构筑物停用后的封堵,必须严格按设计要求施工,并确保施工质量。(4).其他问题为保护某某某河床和坑内采矿安全,按规定留设保安矿柱。保安矿柱的回采方式,可在310mh和360m efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo水平拉开后,视矿岩和涌水情况,做专门论证。11.3.16硐口防冻主平硐为入风口,为防止冬季结冰,坑内涌水设泵排至坑外(不排水时放空管路);11.3.18坑内防水遇有承压水迹象,立即撤出工作面;凿岩时遇有异常涌水现象,不得拔出钎杆和撤出凿岩机,立即报告主管矿长处理;随时掌握未封孔的钻孔在各高度的位置,在掘进和开采时注意做好探放水工作。11.3.19安全设施投资与安全专职机构本设计安全设施投资498.12万元,占13.55%。矿山建设与生产时,不应削减。设专职安全机构,设专职安全员6人。11.3.20事故应急救援预案矿山应制订片帮冒顶、爆破、炮烟中毒、尾矿库、防火防水等事故应急救援预案,并定期演练。12消防12.1设计依据(1)《中华人民共和国消防法》(2)《建筑设计防火规范》GBJ16-87(2001修订版)(3)《建筑物灭火器具设计规范》GBJ140-90(97修订版) efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo12.2工程概况本工程包括选矿厂、采矿坑口、变电所、综合楼、循环泵站、锅炉房以及生活福利设施等项工程。12.3主要防火措施12.3.1建筑防火措施12.3.1.1选矿厂为钢筋混凝土柱及吊车梁,并采用钢屋架,皮带通廊为全钢结构,钢筋砼独立基础;维护结构为240mm厚的砖墙,所有钢结构刷防火涂料,以满足防火要求。12.3.1.2循环泵站等基础为钢筋混凝土箱体基础,结构为砖混结构,耐火等级为二级。12.3.1.3其它建筑物基础为毛石基础,结构为砖混结构,耐火等级为二级。12.3.1.4配电所总降压变电所及各车间操作室、配电室等配置一定数量的干粉灭火器。12.3.2防火间距及通道在矿区外形成消防通道,并且各建筑物布置上保证防火间距。12.3.3消防给水根据《建筑设计防火规范》,矿区室外消防用水量为25升/秒,一次火灾延续时间为2小时,室内消防用水量为10升/秒。消防供水由新建800m3高位生产消防合用水池供给,在厂区形成环状管网,在管网上适当位置设置室外地下式消火栓,消火栓间距不大于120m,保护半径不大于150m,室内设置若干个室内消火栓及手提式干粉灭火器。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo12.3.4电气设备防雷与接地选矿主厂房等屋面采用避雷带防直击雷,接地电阻小于10Ω,地表电力变压器中性点工作接地,接地电阻小于4Ω,所有用电设备均做保护接地,电阻小于4Ω。计算机接地,直流接地、交流工作接地,安全保护接地,接地电阻小于1Ω。坑内电力变压器中性点不直接接地。12.3.5火灾自动报警系统为防止火灾事故发生,设置火灾自动报警系统,根据警戒范围内报警区的多少决定采用区域报警控制系统,根据防火分区设置手动火灾报警按钮。12.4消防机构矿山与原桦矿共设一专门消防机构,统一考虑两个矿区的消防,本矿新建各部门设兼职消防责任员。12.5其它各部门设有电话联系以供火警时通讯使用。13组织机构及劳动定组织机构配置见下图: efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo本项目设计劳动定员316人,其中管理人员15人(其中安全员6人),技术员30人,其余为生产工人。14投资估算14.1概述某某某某某某铁矿工程项目设计生产规模为:坑采年产铁矿石50万吨,外购矿石10万吨,选矿车间年处理矿石量60万吨,年产铁精矿粉17.808万吨。投资估算内容:采矿工程、选矿工程、尾矿工程及附属生产、生活设施等。工程投资估算为11439.69万元。其中:采矿工程费1545.18万元,建筑工程费1697.13万元,设备购置费3393.67万元,安装工程费435.17万元,其他费用4145.56万元,铺底流动资金222.97万元,其中安全投资1326.86万元。建设期二年,资金筹措为企业自筹。14.2编制依据(1)本院各专业提供的设计资料(2)采用定额及指标:建筑工程参考类似工程造价指标估算安装工程参考冶金工业概算指标估算设备价格采用询价材料价格参考现行当地市场价格。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo(3)工程建设其他费参照《冶金工业概算编制办法》及相关政策、文件规定计取费用。14.3投资估算值详见总估算表 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo15财务分析15.1基础数据与参数(1)财务价格某某某某某某铁矿为新建采选联合企业,采场年产26.12%品位的铁矿石50万吨,选厂年处理铁矿石60万吨(不足部分矿石外购),年产66%品位的铁精粉17.808万吨。考虑到当地市场的实际情况,铁精粉的不含税价格定为575.22元/吨。(2)计算期一期服务年限13年,本次分析对一期项目进行分析,计算期按15年考虑,其中建设期2年,生产期按13年计取。(3)投资估算项目投入总资金为11959.96万元,其中固定资产投资11216.72万元,流动资金743.24万元。参见投资估算章,流动资金估算详见附表1。(4)资金筹措和使用计划项目固定资产投资由企业自筹。固定资产投资在建设期二年内等额投入。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo流动资金投资全部自筹。15.2销售收入估算按575.22元/吨不含税价考虑,项目正常年份产品可实现不含税销售收入为10244万元。15.3成本费用估算(1)说明A、各种辅助材料、燃料动力价格参照市场现状预测后计取;B、固定资产投资综合折旧年限为建筑物15年,残值率5%;C、各种费用参照现状及有关资料计取。D、本项目计取资源补偿费,为矿石销售收入2%,计入管理费用中。(2)计算制造成本估算见附表2,总成本费用详见附表3。铁精粉的单位制造成本费用为309.58元/吨,项目正常年份总成本费用为5513万元,正常年份经营成本为4803万元。15.4销售税金及附加估算本项目产品增值税率为13%,城建税、教育费附加分别为增值税的3%、3%。此外,本项目应计取资源税。资源税以吨计,结合矿山实际情况,每吨矿石征收3.7元的资源税。经计算本项目年增值税金附加为48万元,资源税185万元,则项目每年须支出销售税金附加金额为233万元。15.5利润及其分配损益表计算详见附表4。正常年份项目可实现利润总额4497万元,上交33%所得税1484 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo万元,年净利润3013万元。投资利润率为37.6%。15.6财务分析(1)盈利能力分析全部现金流量计算见附表5,获得主要评价指标见下表。盈利能力评价指标表序号指标名称单位所得税后所得税前1财务内部收益率%23.831.82财务净现值(ic=10%)万元10608318283投资回收期(含建设期2a)a5.84.9以上指标表明,本项目具有一定的盈利能力。15.7盈亏平衡分析以正常年份为例:BEP(以生产能力利用率表示)=1820÷(10244-3693-233)×100%=28.8%以上指标表明,本项目具有较好的抗风险能力。15.8结论从经济分析的结果来看,本项目具有一定的盈利能力和抗风险能力,是可以接受的。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo16研究结论与建议16.1推荐方案总体描述16.1.1地质资源储量及设计取用储量(1)地质资源储量原吉林省地质局第二地质调查所提交的《吉林省某某某 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo市老牛沟铁矿区总结勘探报告》中,某某某矿段资源储量(表内)B+C+D级储量2581.71×104t,其中B+C级储量1822.82×104t。平均品位TFe34.34%。(2)设计取用储量按照设计委托和矿山规模建设要求,本可研对地质资源储量按下述原则取用:B+C级取用90%,D级取用60%,故本设计取用储量为1561.22×104t。16.1.2建设规模、产品方案及矿山服务年限(1)建设规模矿山为采矿联合企业,选矿建设规模为60×104t/a,其中坑内出矿能力按50×104t/a计算(设备和控制性工程,按60×104t/a给定,如果储量升级理想,通过合理安排,生产能力可以大于50×104t/a)供矿不足部分按外购矿石考虑。(2)产品方案企业产品为品位66%铁精粉,年产量17.808×104t/a。(3)矿山服务年限矿山服务年限,按取用矿量、采矿规模50×104t/a,可服务31a;按60×104t/a规模,可服务26a。采矿工程分两期建设,一期为460m水平以上,按50×104t/a的规模,可服务13a(二期待460m水平探矿结果明朗后再行设计)。16.1.3厂址及开拓运输方案(1)厂址 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo经比较,选厂及辅助工业区,分别确定在矿体西端头道沟河侧的山坡上和沟口(见总平面布置图),选厂受矿标高460m。该处靠近水源,尾矿输送距离短;工业场地平坦,伐树很少。(2)开拓运输方案根据选厂位置和受矿标高,460m平硐为出矿水平。460m以上为一期工程,有4个中段,段高50m,确定采用平硐溜井开拓,;460m以下为平硐盲竖井开拓。460m出矿平硐为7t电机车,牵引1.2m3和0.7m3矿车运送矿岩。16.1.4采矿工艺方案(1)采矿地下开采分两期建设,460m水平以上为一期,平硐溜井开拓,460m水平以下为二期,平硐盲竖井开拓,460m平硐为出矿平硐。采矿能力按50×104t/a计算,控制性工程按60×104t/a设计。采矿方法主要为分段采矿法,少量为浅孔留矿法。采空区利用掘进废石进行事后充填。一期各中段平硐均有两个出口通地表,采用局扇通风。井巷开拓工程量19072m/113857m3(一期)。(2)选矿原矿工艺流程主要参照原鞍山矿山设计院所做选矿试验确定。采用三段一闭路破碎,阶段磨矿、阶段选别工艺流程,-200目占85%以上;选别设备采用半逆流式永磁筒式磁选机,进行三次选别,品达为66%。 efaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFooteerticalAlignmentimetersToPointrstPageTrPrinterDefaultBtherPagesTrefaultBiectionStardSectionNewPadAndEvenPagesHeadWitctiveDocument.PageSetLineNumbering.ActiventationdOrientPMaCentimetersToPoeftMaCentimetersToPoihtMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentiarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridersToPoieAlignVerticalToppressEndnoteirrorMteerticalAlignmeAlignVerticalToppressEndnoteirrorMarginwoPagesOnOookFoldPrintialsokFoldRevPrintinookFoldPrintingSheedGutterPosdLayoutModeLineGridrDoPointsageHeightMarginntimetersToPoiuttentimetersToPoieaderDistaCentimetersToPerDistaCentimetersToPointgeWidtentimetersTmetersToPointgeWidtentimetersTwdPrinterDefaultBiectionStardSectionNewPadAndEvenPagesHeaderFoofferentFirstPageHeaderFoo选厂建设规模60×104t/a,年产精矿17.808×104t。16.1.5对项目的简要评价从目前市场情况来看,该矿资源比较丰富,外部建设条件比较优越,开发的技术成熟可靠,经济与社会效益比较明显,具有一定的盈利能力和抗风险能力,有利于本企业和通钢、吉林省的发展,建议企业按照国家、行业等有关安全、环保、能源、消防、资源开发利用、用林用地、用水用电等法律法规、标准规范合法地运作,尽早建成投产,早见效益。16.2存在的主要问题及建议(1)地质报告未经套改和评审备案,矿方已向省国土资源厅提出不进行套改和评审备案以及风险自担的申请,但应抓紧报批。(2)区内部分钻探工程质量较差,矿心和岩心采取率未达到规定要求,会对矿体空间位置和储量计算结果的可靠程度造成影响,对未来矿山开采所带来的风险是不可忽视的。(3)某某某矿段位于上盘的43-4矿组,均为D级矿量,为保证矿山正常生产,采矿工作均衡下降,建议对勘探程度差的各矿体先期投入一定的探矿工作。(4)生产用水水源应做水文地质工作;选厂、综合楼、尾矿坝等应做工程地质勘察。在初步设计前,应提供上述有关资料。(5)可行性研究报告完成后,初步设计前,应开展安全评价、环境评价和能源评价工作,作为初步设计的依据。 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