第51卷2023年第2期编辑安秀清分·选36闪速浮选技术在粗精矿再磨作业中的应用刘群1,钟国建1,胡文英1,冯宁1,丁声强1,张跃军21广东省大宝山矿业有限公司广东韶关5121272矿冶科技集团有限公司北京100160摘要:某选厂硫化铜浮选扩产改造后,铜粗精矿产能大幅提升,但现场仍存在用于再磨作业的球磨机处理能力不足的问题,工艺短板限制了选铜技术指标的进一步提升。在分析改造前铜精选流程的基础上,开展了从流程查定、工艺矿物学研究到浮选试验的全面研究,最终确定并实施了铜精选段闪速浮选技术改造方案。在粗精矿再磨分级回路中增加闪速浮选机,闪速浮选机可实现分梯度选矿,有效减轻了再磨机运行负荷,选铜回收率提高了1.06个百分点,技术改造效果显著。关键词:硫化铜浮选;闪速浮选机;流程查定;工艺矿物学;分级梯度选矿中图分类号:TD456;TD952文献标志码:B文章编号:1001-3954(2023)02-0036-07ApplicationofflashflotationprocessinregrindingoperationofmiddlingconcentrateLIUQun1,ZHONGGuojian1,HUWenying1,FENGNing1,DINGShengqiang1,ZHANGYuejun21GuangdongProvinceDabaoshanMiningCo.,Ltd.,Shaoguan512127,Guangdong,China2BGRIMMTechnologyGroup,Beijing100160,ChinaAbstract:Inaconcentrator,theyieldofmiddlingcopperconcentrategreatlyenhancedaftertheinnovationofproductionexpansionofcoppersulfideflotation,whileinsufficientprocessingcapacityoftheballmillforregrindingoperationinfieldrestrictedthefurtherpromotionofthetechnicalindexesofcopperflotation.Afteranalyzingtheoriginalcopperconcentrationprocessbeforeinnovation,thepaperresearchedtheprocessverification,processmineralogyandflotationtest,finallydeterminedandconductedtheinnovationschemeinvolvingflashflotationprocessincopperconcentrationstage.Theflashflotatorwasaddedintotheregrindingandclassificationcircuitofthemiddlingconcentrate,soastorealizethegradientconcentration,thustheoperationloadoftheballmillrelievedandtherecoveryratioofcopperincreased1.06percentagepoints,theremarkabletechnicalinnovationeffectswereobtained.KeyWords:flotationofcoppersulfide;flashflotator;processverification;processmineralogy;gradientconcentration作者简介:刘群,男,1973年生,高级工程师,主要从事选矿技术和装备的工业...