某低品位难选铁矿石选别工艺试验
Separation Process Test of a Low Grade Refractory Iron Ore
唐昊 1刘盛辰 1李天舒 1龙菲菲 1李万兴 1张轰玉1
作者信息
摘要
某难选铁矿石全铁品位为32.80%,矿物组成复杂且矿物嵌布粒度微细,为确定后续合理的磨选工艺,进行了选矿工艺试验.试验结果表明:采用阶段磨矿—磁选—淘洗提质工艺,在一段磨矿细度为-74 μm85%,二段磨矿细度为-45 μm75%的条件下,可获得产率为39.47%、铁品位为65.14%、铁回收率为78.38%的铁精矿,尾矿铁品位为11.71%,获得了满意的试验指标.
Abstract
The total iron grade of a refractory iron ore is 32.80%.The mineral composition is complex and the particle size of the mineral is fine.In order to determine the subsequent reasonable grinding pro-cess,the beneficiation process test is carried out.The test results show that the iron concentrate with yield of 39.47%,iron grade of 65.14%and iron recovery of 78.38%can be obtained by stage grinding-magnetic sep-aration-elutriation upgrading process under the conditions of grinding fineness of-74 μm 85%in the first stage and grinding fineness of-45 μm 75%in the second stage.The iron grade of tailings is 11.71%.Satisfac-tory test indexes are obtained.
关键词
微细粒难选铁矿/阶段磨选/淘洗提质Key words
micro-fine refractory iron ore/stage grinding/elutriation and upgrading引用本文复制引用
出版年
2024
NETL
NSTL
万方数据