白音查干多金属矿全尾砂膏体充填与膏体堆存PPT课件

PASTE 2017 LeiGuo郭雷 DeputyGeneralManageroftheMineDepartment ChinaENFIEngineeringCorporation China中国恩菲工程技术有限公司矿山事业部副总经理 SeniorEngineer高级工程师 Speaker 报告人 1 DesignandConstructionofPasteFillingandPasteStockpilingUnitedDisposalSysteminBaiyinchaganPolymetallic LeiGuo ChinaENFIengineeringCo Ltd ChinaHuilaiWang ChinaENFIengineeringCo Ltd ChinaXuesenSun ChinaENFIengineeringCo Ltd ChinaJiguoZhou ChinaENFIengineeringCo Ltd ChinaXinminLiang ChinaENFIengineeringCo Ltd China 白音查干多金属矿全尾砂膏体充填与膏体堆存联合处置系统设计和建设 目录 CONTENTS 概况Introduction 全尾砂膏体堆存系统PasteStockpilingSystem 全尾砂膏体联合处置系统UnclassifiedTailingsPasteUnitedDisposalSystem 05 结论Conclusion 全尾砂膏体充填系统UnclassifiedTailingsPasteBackfillingSystem 01 概况No 1Introduction 尾砂膏体充填和膏体堆存具有安全 高效 节能 环保等优点 在矿业发达国家被广泛认可并应用 Tailingspastebackfillingandpastestorageatsurfacetechnologieshavetheadvantagesofsafety highefficiency energysavingandenvironmentalfriendliness Theyarewidelyrecognizedandappliedintheminingindustryofdevelopedcountries 中国恩菲于20世纪90年代初开始在国内进行膏体充填技术的研究与应用 设计的金川镍矿 铜绿山铜矿 会泽铅锌矿 冬瓜山铜矿和谦比西铜矿等矿山先后建成膏体充填系统并投入运行 该技术在我国得到迅速发展 Inthe1990sChinaENFIbeguntoresearchanddevelopthepastebackfillingtechnology Yu 2011 andsuccessivelyestablishedandputintooperationpastebackfillingsystemsintheJinchuanNickelMine TonglushanCopperMine HuizeLead ZincMine DongguashanCopperMineandChambishiCopperMine ThetechnologyhasbeenrapidlydevelopinginChina 目前 我国尾砂膏体堆存技术仍处于起步阶段 在运行尾矿膏体堆存系统的规模化矿山主要有乌奴格吐山铜钼矿和包头白云鄂博西矿 Butatpresent pastestoragetechnologyinChinaisstillinpreliminarystage onlytwopastestoragesystemsareinlargescaleapplication WhichareWunugetushanCopper MolybdenumMineandBaiyuneboWestMine 白音查干多金属矿地处内蒙古西乌珠穆沁旗 矿区以残山丘陵与准平原草原景观区为主 植被较发育 覆盖程度较高 矿体为多金属矿 主要含有铅 锌 银 铜 锡等 BaiyinchaganPolymetallicMinelocatedintheXiwuzhumuqinqi InnerMongolia Themineareaismainlycomposedofhillsandprairielandscapeandwidelycoveredbythevegetation Polymetallicorebodieshavebeendiscovered withthemaincontainedmetalsoflead zinc silver copperandtin 01 概况No 1Introduction 2014年6月 中国恩菲完成该矿初步设计 随后开展施工图设计 同年开始建设 2016年9月 矿山基建完成 目前处于试生产阶段 InJune2014 ChinaENFIhadcompletedthepreliminaryanddetaileddesignsforthemineandstartedinfrastructureconstructionatthesameyear InSeptember2016 theminecompletedinfrastructureconstructionandturnedintotrialproduction 设计生产规模为5000t d 分两个系统 铅锌系统2500t d 铜锡系统2500t d 采用地下开采方式 主斜坡道开拓 分段空场嗣后充填采矿法和上向水平分层充填采矿法 全尾砂膏体充填和膏体堆存 Thedesignedproductionrateis5000t d withtwoprocessingstreamscomprisinga2500t dofLead Zincsystemanda2500t dofCopper Tinsystem Theundergroundmineusesamainrampdevelopmentsystemandsublevelopenstopingandabottom upcutandfillmethod Theunclassifiedtailingpastebackfillingsystemandpastestockpilingsystemshavebeenestablished 01 概况No 1Introduction 02 全尾砂膏体充填系统No 2UnclassifiedTailingsPasteBackfillingSystem 矿区地表主要为林地和牧民的草场 生态保持的要求高 适合膏体充填技术的应用 Thesurfaceoftheminingareawasmainlycomposedofforestandgrasslandsforlocalherdsmen andtheareahasastrictregulationsfortheprotectionofecologyandenvironment Whichissuitablefortheapplicationofpastefillingtechnology 全尾砂膏体充填系统包括膏体制备 输送和采场充填 选矿厂生产的全部尾砂送至充填搅拌站 经充填搅拌站内的深锥浓密机浓缩后 制备合格的充填料浆 通过浓料输送泵送至井下采场空区进行充填 Theunclassifiedtailingspastebackfillingsystemconsistsofpastepreparation transportationandstopefilling Allthetailingshasbeensenttothefillingstationfortailingsthickeningbyusingdeepconethickeners andthendeliveredtotheundergroundworkingareathroughslurrypumpsandpipelines 充填设施主要包括地面充填搅拌站 充填钻孔和输送管路等 充填搅拌站主要设施及设备包括尾砂浓缩设备 水泥仓 水泥给料设备 两级卧式搅拌机和浓料输送泵 Fillingfacilitiesmainlyincludeanundergroundpreparationstation backfilldrillingholesandpipelines Themainfacilitiesandequipmentofthepreparationstationincludetailingsthickeningequipment cementsilos cementfeedingequipment two stagehorizontalmixersandslurrypumps 02 全尾砂膏体充填系统No 2UnclassifiedTailingsPasteBackfillingSystem 膏体制备和输送PastePreparationandTransportation充填搅拌站共设2台深锥浓密机和3套充填料浆制备及输送系统Thesurfacebackfillpreparationstationisequippedwith2deepconethickenersand3setsofbackfillslurrypreparationandtransportationsystems 14m深锥浓密机2台2setsof 14mdeepconethickeners水泥仓3座3cementsilos双轴叶片搅拌机3台 双螺旋搅拌机3台 浓料输送泵3台3biaxial bladedmixers 3double helixmixers 3slurrypumpsandrelatedinstrumentsmonitoringsystem 02 全尾砂膏体充填系统No 2UnclassifiedTailingsPasteBackfillingSystem 正常生产时 2台深锥浓密机同时工作 料浆制备及输送系统2套工作1套备用 Twosetsofdeepconethickenersoperatesimultaneouslytogetherwith2setsofslurrypreparationandtransportationsystemsduringnormalproduction atthesametime Thethirdsetofslurrypreparationandtransportationsystemsstandby 单套系统制备能力 80 100 m h 每套均可用于全尾砂胶结充填和非胶结充填 Thepreparationcapacityofeachdeepconethickeneris80to100m h Eachsetcanbeusedforunclassifiedtailingscementedaswellasuncementedfilling 02 全尾砂膏体充填系统No 2UnclassifiedTailingsPasteBackfillingSystem 膏体制备系统图Systemdiagramofpastepreparation 井下充填系统UndergroundFillingSystem充填钻孔3条 两工一备 钻孔为垂直钻孔 直径 350mm 充填钻孔内敷设套管 套管外采用水泥砂浆封填 套管选择双金属复合耐磨管 外 219mm Theundergroundbackfillingsystemhas3verticalboreholesintotal eachwiththeadiameterof 350mm Bimetalcompositewear resistantcasinghasbeenlaidineachborehole withanexternaldiameterof219mm 平巷中充填管选用陶瓷内衬复合钢管 外 194mm Thepipelineintheundergroundaccessisaceramic linedsteelcompositepipewiththeexternaldiameterof194mm 采场内敷设的充填管选矿用树脂管 Thefillingpipeinthestopecomprisesamineresintubewhoseperformancematchestheceramic linedsteelcompositepipe 02 全尾砂膏体充填系统No 2UnclassifiedPasteBackfillingSystem 井下充填系统图DiagramoftheUndergroundFillingSystem 采场充填StopeFilling分段空场嗣后充填采矿法SublevelOpenStopingMiningMethod一步骤采场采用全尾砂胶结充填 底部和顶部采用4m 6m灰砂比1 4的胶结充填 中间采用灰砂比1 10的胶结充填 Thefirst stageofbackfillingadoptsunclassifiedtailingscementedfilling Approximately4to6mofcementedbackfillareplacedinseparatestagesatthebottomandatthetopofthestopewiththecementvs tailingsratioof1 4 Forthemiddlestope thecementvs tailingsratioofthecementedfillingsis1 10 二步骤采场底部和顶部各采用4m 6m灰砂比1 4的胶结充填 中间采用全尾砂非胶结充填 Inthesecond stagefilling thereisasmalldifferencefromthefirst stage unclassifiedtailingsuncementedfillwasusedtobackfillthemiddlestope 02 全尾砂膏体充填系统No 2UnclassifiedPasteBackfillingSystem 分段空场嗣后充填采矿法SublevelOpenStopingMiningMethod 采场充填StopeFilling上向水平分层充填采矿法Bottom upCutandFillMining每一中段的首采分层胶结充填4m 6m高 灰砂比为1 4 Theheightofthefirstmininglayerofeachlevelisfilledwithcementedfillingsfor4 6matcementvs tailingsratioof1 4 其它分层充填4m高 其中底部非胶结充填3 7m厚 其上再充填0 3m厚 灰砂比为1 4的胶结面层 Subsequentlayerswerefilledfor4mheightbycementedfill 3 7mwasfilledwithuncementedfillingandthetop0 3mwasfilledbycementedfillatcementvs tailingsratioof1 4 02 全尾砂膏体充填系统No 2UnclassifiedTailingsPasteBackfillingSystem 上向水平分层充填采矿方法图Bottom upCutandFillMining 03 全尾砂膏体堆存系统No 3PasteStockpilingSystem 矿区干旱少雨且蒸发量大 适合尾矿膏体堆存技术的应用 Themineareaisaridandexperienceshighevaporationrates whichissuitablefortheapplicationofpastetailingsstackingtechnology 全尾砂膏体堆存系统包括膏体制备 输送和排放 Theunclassifiedtailingspastestoragesystemincludespastepreparation transportationanddischargefacilities 选矿厂排出的全部尾矿矿浆经深锥浓密机浓缩 浓缩后的膏体尾矿经尾矿输送泵站和管道输送至尾矿库进行膏体堆存 Thedeepconethickenerconcentratesthetailingsslurryandthentheconcentratedpastetailingsistransportedtothetailingsstoragefacility TSF throughthetailingspumpstationandpipelines 膏体制备和输送PastePreparationandTransportation尾矿输送泵站Tailingspumpstation1台矿浆贮槽1slurrytankwhichisequippedwithanagitator 2台离心式喂料泵 1用1备2centrifugalfeedpumps oneoperating onestandby 2台隔膜泵 1用1备 参数 Q 200m3 h P 8 0MPa2diaphragmpumpswithfrequencycontrol oneoperating onestandby Theflowrateofeachdiaphragmpumpis200m3 h andthepressureis8 0MPa 03 全尾砂膏体堆存系统No 3PasteStockpilingSystem 尾矿输送管道Tailingstransport2条DN200管道交替使用 每条长约7000mTherearetwoDN200tailingstransportpipelinesbetweenthetailingspumpstationandtheTSF andthetwopipesareusedalternately ThelengthofEachpipelineisapproximately7000m 1条管道为陶瓷复合钢管 1条管道为无缝钢管Oneisaceramiccompositepipe whiletheotherisaseamlesssteelpipe 03 全尾砂膏体堆存系统No 3PasteStockpilingSystem 尾砂膏体制备及输送工艺流程示意图Flowchartofthepastetailingspreparationandtransportationprocess 膏体排放PasteTailingsDischarge尾矿库周边筑坝 总库容约1427 1万m3 服务年限20年 thetotalstoragecapacityisapproximately14 271millionm3 whichcouldmeetsproductionrequirementsfor20years 尾矿库进行全库防渗ThetailingspondislinedwithanHDPEgeomembranetominimizethepermeation 采用库尾放矿和周边放矿型式进行集中轮流放矿Thepastetailingsdischargeattheendsoraroundthestoragefacilityinturns 03 全尾砂膏体堆存系统No 3PasteStockpilingSystem 尾矿设施平面布置图LayoutoftheTSF 04 全尾砂膏体联合处置系统No 4UnclassifiedTailingsPasteUnitedDisposalSystem 系统简述SystemDescription选矿厂生产的全部尾砂送至充填搅拌站 经深锥浓密机浓缩 充填时 制备合格的充填料浆 通过浓料输送泵送至井下采场空区进行充填 Allofthetailingssenttobackfillstation thenthickenedbythedeepconethickeners Theslurryfilledundergroundworkingareaviatheslurrypumps afteritmeetstherequirement 当采场不充填时 全部尾矿经深锥浓密机浓缩后输送至尾矿输送泵站 由隔膜泵及管道输送至尾矿库进行膏体堆存 Whenthefillingoperationsuspend thethickenedslurrydivertedtothedischargepumpstation andthenpumpedtotheTSFthroughthediaphragmpumpsandpipelines 全尾砂膏体联合处置系统示意图Schematicoftheunclassifiedtailingspasteuniteddisposalsystem 系统建设情况SystemConstructionSituation2015年开始施工建设充填搅拌站和尾矿输送泵站 建设过程较为顺利 2016年9月建设完成 Theconstructionoffillingstationanddischargepumpingstationstartedin2015andcompletedintheSeptember2016 目前 井下未开始正式采矿 没有可供充填的采空区 无法对井下充填系统进行测试 但对深锥浓密和尾砂膏体堆存系统进行了试运行 直到目前 系统运行稳定 Atpresent theminehasnotyetbeenofficiallyputintoproductionandtherearenomined outareasavailablefortestingthepast