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1、摘要某金矿年处理30万吨矿石选矿厂设计摘要:按照毕业设计任务书的要求,进行了年处理30万吨某金矿选矿厂设计,产品为金精矿,设计地点为辽宁省庄河市。为了选择和制定技术上先进,工艺成熟,生产上可靠,经济效益高的综合方案,本设计参考了大量相关选厂的设计资料,最终根据实际情况,确定了合理的各车间的工作制度,拟定了设计工艺流程,即采用三段一闭路破碎流程,一段闭路磨矿流程,一段一循环浮选工艺流程,先浓缩后过滤的两段脱水流程。通过设计,获得最终精矿品位为127.0g/t(原矿品位为4.7g/t)、回收率89.32%、精矿含水率8%的良好指标。设计对工艺流程进行了工艺指标计算,包
2、括破碎、筛分、磨矿、浮选(包括矿浆流程)和脱水流程。对破碎、筛分、磨矿、分级、浮选及脱水设备进行了选择计算,最终确定了工艺所需的工艺设备。设计还进行了厂房的总体布置,并进行了厂房内的设备配置。根据选厂的地形条件,沿山坡地布置,其中,粗碎、中细碎、筛分厂房分开布置。磨矿浮选共厂房配置,其中磨矿采用纵向配置,浮选机采用横向配置。浓缩机配置在露天,过滤机与精矿仓配置在厂房内。完成了原则流程图、数质量及矿浆流程图、设备形象联系图、破碎筛分、磨浮、脱水车间平断面图共6张图纸。关键词:选矿厂设计;金矿;浮选ii摘要TheDesignofOneGoldMineConcentra
3、tingMillWiththeCapacityof30,000t/aAbstract:Aaccordingtotherequirementsofgraduationdesigntaskbook,theannualprocessingcapacityof300000tonsofgoldoredressingplanthasbeendesigned.Thedesignedproductisthegoldconcentrate.ThedressingplantislocatedinZhuanghecity,Liaoningprovince.Inordertoselect
4、anddeveloptheadvancedandmaturetechnology,reliableproduction,higheconomicbenefitofcomprehensiveplan,thedesignhasreferedtoalargenumberofdesigninformationofrelevantplant.Finallyaccordingtotheactualsituation,Ideterminethereasonableworkingsystemoftheworkshop,anddrewupthedesignprocess,which
5、usesthreesectionofaclosedcircuitcrushingprocess,aclosedcircuitgrindingprocess,acycleflotationprocessandfirstconcentratingthenfilteroftwodehydrationprocess.Throughthedesign,gettingthegoodindicator,whichisthatthethefinalconcentrategradeis127.0g/t(oregradeis4.7g/t),therecoveryrateis89.32
6、%,concentratemoisturecontent8%.Thedesigncalculatestheprocessindexoftheprocessflow,includingcrushing,screening,grinding,flotation(includingpulpflow)anddehydrationprocess.Andselectingandcalculatingthecrushing,screening,grinding,grading,flotationanddewateringequipment.Ultimatelydetermini
7、ngtheprocessequipmentwhichtheprocessrequiredfor.Also,thedesigncompletesthegenerallayoutoftheplantandthefactoryequipment.Accordingtothetopographyoftheplantsite,theplantissetalongtheslopeofmountain.Theworkshopsofcoarsecrushing、middlecrushingandfinecrushingandscreeningaresetindependently
8、.Thew