国外某微细粒磁铁矿石选矿试验  

Beneficiation Experiment on a Foreign Microfine Magnetite Ore

作　　者：王海亮[1,2] 侯更合[1,2] 高春庆[1,2] 钟素姣[1,2] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司 [2]华唯金属矿产资源高效循环利用国家工程研究中心有限公司

出　　处：《现代矿业》2015年第8期54-55,58,共3页Modern Mining

基　　金：国家科技支撑计划项目(编号:2011BAB07B04)

摘　　要：国外某铁矿石嵌布粒度微细,为高效低耗开发利用该铁矿石资源,采用阶段磨矿阶段弱磁选工艺流程(流程1)和阶段磨矿阶段弱磁选—磁选柱提前提精—中矿再磨—2段弱磁精选工艺流程(流程2)分别进行了工艺条件研究。结果表明:流程1可获得铁品位68.64%、铁回收率为70.17%的铁精矿;流程2可获得铁品位为68.19%、铁回收率为70.28%的铁精矿;2个流程比较,流程2更高效节能。In order high efficiently develop and utilize a foreign microfine disseminated iron ore with low cost,both stage grinding stage low intensity magnetic separation process （Process 1）and stage grinding stage low intensity magnetic separation -iron concentrate obtained by magnetic column in ad-vance -middlings regrinding -two stage low intensity magnetic cleaning separation process（Process 2）is conducted.Results indicated that：iron concentrate with iron grade of 68.64% and recovery of 70.17%can be obtained through Process 1;iron concentrate with iron grade of 68.19% and recovery of 70.28%can be obtained through Process 2;By comparison,Process 2 is more efficient and use less energy.

关 键 词：嵌布粒度微细 阶段磨矿 阶段弱磁选 磁选柱 中矿再磨 

分 类 号：TD951[矿业工程—选矿]