云南某细粒难选铁尾矿铁的回收试验  被引量:4

Experiment on Recovering Iron from a Fine Fraction Difficult Dressing Iron Tailings from Yunnan Province

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作  者:李强 周平[2] 庄故章[2] 

机构地区:[1]云南科力新材料股份有限公司 [2]昆明理工大学国土资源工程学院

出  处:《现代矿业》2017年第8期121-123,共3页Modern Mining

摘  要:云南某铁尾矿粒度较细,-0.019 mm占53.16%,铁品位24.93%,铁主要以赤褐铁的形式存在,较难选别。为回收利用其中的铁,进行选矿试验。结果表明,原矿经1粗2精1扫强磁选抛尾—-0.037 mm分级—+0.037 mm摇床重选选别,可获得铁精矿品位51.07%、回收率40.90%的良好指标,可供确定最终工艺流程参考。A iron tailings of Yunnan particle size is quite fine, which -0. 019 mm accounts 53. 16% ,iron grade is 24.93%. Iron mainly exists in the form of hematite and limonite, so mineral pro- cessing is difficult. To recycle and utilize the iron in the iron tailings, dressing experiment was carried out. The results show that a good indicator of iron concentrate grade 51.07% and recovery rate 40.90% was obtained, via one roughing-two cleaning-one scavenging high intensity magnetic separation-discarding rail- ings,0. 037 mm grading and + 0. 037 mm gravity separation by shaking table, which can provide refer- ences for the determination of the final process flow.

关 键 词:铁尾矿 强磁选抛尾 摇床重选 分级 

分 类 号:TD951[矿业工程—选矿]

 

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