广西某低品位微细粒铅锌矿选矿试验  

Beneficiation Experiment on a Low Grade Micro-Fine Particle Lead Zinc Ore in Guangxi

作　　者：陈端云 

机构地区：[1]深圳市中金岭南科技有限公司

出　　处：《现代矿业》2017年第12期90-96,共7页Modern Mining

摘　　要：广西某低品位微细粒铅锌矿石铅、锌品位分别为0.95%、3.01%,铅、锌矿物嵌布粒度微细,分别主要赋存于方铅矿、闪锌矿中,并可综合回收铁和重晶石。为合理开发该矿石资源,进行选矿试验。通过平衡过磨与目的矿物单体解离之间的矛盾,选择棒磨方式进行磨矿,并运用等沉比理论确定合适的筛分分级粒度,然后通过分粒级摇床重选—磁选流程试验,最终获得铅品位53.07%、回收率78.76%的铅精矿和锌品位63.71%、回收率83.54%的锌精矿,同时可回收铁精矿和重晶石精矿,且流程无需药剂添加,实现该矿石的高效环保分选。The lead and zinc grade of a low grade micro-fine particle lead zinc ore in Guangxi province are 0.95% and 3.01%. The embedded size of lead and zinc minerals are very fine,which mainly existing in galena and blende, and iron and barite could be comprehensive recovered. In order to develop this ore resource reasonably, processing experiment was carried out. To balance the contradiction between over-grinding and monomer separation of objective mineral, rod milling was chosen. Equal settling ratio theory was adopted to determine proper sieving classification size. Lead concentrate with lead grade of 53. 07% and recovery of 78.76% ,zinc concentrate with zinc grade of 63.71% and recovery of 83.54% were obtained via classification shaking table gravity separation-magnetic separation. At the same time, iron concentrate and barite concentrate were also recovered. The whole flow did not need reagent, and the high efficiency and friendly to environment separation was realized.

关 键 词：选矿 摇床 筛分 磁选 

分 类 号：TD952[矿业工程—选矿]