广西某铅锌矿提高铅回收率试验及工业应用  

Experimental Study and Industrial Application on Improving Lead Recovery Rate of a Lead-Zinc Mine in Guangxi

作　　者：韦炳强 周钰沣 蔡冰冰 杨建文[2,3] 朱雅卓 戴明钊[2,3] 胡波 WEI Bingqiang;ZHOU Yufeng;CAI Bingbing;YANG Jianwen;ZHU Yazhuo;DAI Mingzhao;HU Bo(Guangxi Zhongjin Lingnan Mining Co.,Ltd.;Hunan Research Institute for Non-ferrous Metals Co.Ltd.;Hunan Province Key Laboratory for Complex Copper Lead Zinc Associated Metal Resources Comprehensive Utilization)

机构地区：[1]广西中金岭南矿业有限责任公司 [2]湖南有色金属研究院有限责任公司 [3]复杂铜铅锌共伴生金属资源综合利用湖南省重点实验室

出　　处：《现代矿业》2023年第9期151-155,共5页Modern Mining

基　　金：国家重点研发计划(编号:2022YFC2904500)。

摘　　要：为了提高广西某铅锌选矿厂的铅回收率及稳定指标,针对现场选铅流程循环量大的问题,经流程查定后确定以铅精选1尾矿为研究对象,在对方铅矿嵌布粒度及嵌布特征进行工艺矿物学分析的基础上进行了铅精选1尾矿再磨再选小型试验并对选厂生产工艺进行了磨矿工艺流程改造。结果表明:约有20%的铅矿物可以转化成铅精矿产品,再磨后铅精选作业循环量显著下降;经磨矿工艺流程改造后的选厂生产中,铅回收率可提高5个百分点以上,经济效益显著。In order to improve the lead recovery rate and stability index of a lead-zinc concentrator in Guangxi,aiming at the problem of large circulating quantity in the on-site lead separation process.After the process investigation,it was determined that the lead cleaning selection 1 tailings were taken as the research object.Based on the process mineralogy analysis of the dissemination particle size and dissemination charac⁃teristics of the lead ore,a small test of regrinding and re-concentration of the lead cleaning selection 1 tail⁃ings was carried out,and the grinding process was reformed for the production process of the concentrator.The results showed that about 20%of lead minerals could be converted into lead concentrate products,and the circulating quantity of lead cleaning operation decreased significantly after regrinding.In the production of the concentrator after the transformation of the grinding process,the lead recovery rate can be increased by more than 5 percentage points,and the economic benefit is remarkable.

关 键 词：大循环量 铅精选 1 尾矿 铅回收率 再磨再选 

分 类 号：TD952[矿业工程—选矿]