辽宁思山岭铁矿石阶段磨选试验研究  

Stage-grinding and Separation Process Optimization of Sishanling Iron Ore in Liaoning

作　　者：袁帅[1] 韩跃新[1] 李艳军[1] 刘杰[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《矿产综合利用》2016年第3期30-34,共5页Multipurpose Utilization of Mineral Resources

基　　金：中国地质调查项目(12120113086600);自然基金项目(51204035);新教师基金项目(20110042120041)资助

摘　　要：对辽宁思山岭赤铁矿石采用阶段磨矿-磁选-混磁精矿反浮选工艺流程进行了条件试验研究,对选别过程的磨矿细度、磁场强度、药剂制度等工艺参数进行了优化。结果表明,TFe品位28.74%的原矿经磨矿后通过磁选抛尾处理可获得TFe品位37.97%的混磁精矿,混磁精矿再磨后经一粗一精三扫、中矿返回流程的反浮选工艺处理后,最终可获得TFe品位66.50%,铁回收率92.34%的浮选精矿产品。Stage grinding-magnetic separation-reverse flotation technology was applied for a high-silica low-grade hematite ore from Sishanling in Liaoning. Condition experiments were conducted consisting of grinding fineness, Magnetic field intensity, reagent dosage to optimize the process parameters. The results showed that the mixed magnetic concentrate with iron grade of 37.97% was obtained by grinding and magnetic separation process from the raw ore with iron grade of 28.74%. Iron concentrate with grade greater than 66.50%, and the recovery over 92. 34% was obtained after grounding the mixed magnetic concentrate and then through one roughing one cleaning three scavenging flotation process.

关 键 词：赤铁矿 阶段磨选 混磁精矿 反浮选 流程优化 

分 类 号：TD981[矿业工程—选矿]