摘要
对铁矿尾矿进行多元素分析、粒度分布和铁物相分析的基础上选择试验方案,对矿石中的磁铁矿矿物进行条件试验,考查了粒度、场强、给矿浓度、给矿时间等因素。确定磁选加重选的联合流程工艺为该铁尾矿较佳的分选工艺。采用该工艺,最终获得铁混合精矿的产率为9.39%,精矿回收率为27.91%,精矿品位62%,分选效果良好。试验结果不仅可有效回收尾矿中的铁,而且也部分解决了该矿的尾矿堆存问题,为今后矿山的开发利用和实现循环经济的发展奠定了基础,具有很大的潜力以及经济和社会效益。
The experimental scheme was chosen on the basis of the analysis of multi-elements, size distribution and iron phase. Through the condition test of the magnetite in the ore, the particle size, such factors as the field strength, the feed concentration and the feed time were investigated. The technology of the combination of the magnetic sepa- ration and gravity concentration was determined as the optimal one for the iron tailings. By adopting this technology, the bulk concentration with the yield of 9.39% , the recovery of 27.91 and the grade of 62% was obtained, which can not only recover the rion in the tailings,but also solve the heaping problem. It provides foundation for the ore exploitation and the development of circular economy. Therefore, it has great economic and social benefits.
出处
《矿产综合利用》
CAS
2013年第3期67-70,共4页
Multipurpose Utilization of Mineral Resources
关键词
铁矿尾矿
磁选
摇床
铁精矿
Iron tailings
Magnetic separation
Shaking tables
Iron concentrate
