西北某贫磁铁矿高效分选工艺试验  

High-efficiency Separation Process Test of a Lean Magnetite Ore in Northwest China

作　　者：蔡毅兵[1] 赛明雨 何志强 高春庆 CAI Yibing;SAI Mingyu;HE Zhiqiang;GAO Chunqing(JISCO Tiangong Mining Investment Co.,Ltd.;Sinosteel Maanshan General Institute of Mining Research Co.,Ltd.)

机构地区：[1]酒钢(集团)天工矿业投资有限公司 [2]中钢集团马鞍山矿山研究总院股份有限公司

出　　处：《现代矿业》2024年第7期166-169,共4页Modern Mining

摘　　要：为了高效开发利用西北某贫磁铁矿石资源,在详细的矿石性质研究的基础上,进行了选矿工艺试验。试验结果表明:原矿经常规破碎—干式磁选预选—预选精矿高压辊磨(-3 mm)—湿式磁选预选—预选精矿阶段湿式磨矿—阶段湿式磁选工艺,可获得产率13.95%、全铁品位65.58%、全铁回收率60.32%、磁性铁回收率96.35%的铁精矿,较好地实现了铁矿物的回收,可为开发利用该铁矿石资源提供技术参考依据。In order to efficiently develop and utilize a lean magnetite ore resource in Northwest China,based on the detailed study of ore properties,the beneficiation process test is carried out.The results show that the iron concentrate with yield of 13.95%,total iron grade of 65.58%,total iron recovery of 60.32%and magnetic iron recovery of 96.35%can be obtained by the process of conventional crushing-dry magnetic pre⁃concentration-preconcentrate high pressure roller mill(-3 mm)-wet magnetic preconcentration-stage wet grinding of preconcentrate-stage wet magnetic separation.The recovery of iron minerals is well realized,which can provide technical reference for the development and utilization of iron ore resources.

关 键 词：磁铁矿 湿式磁选 选矿工艺 

分 类 号：TD951[矿业工程—选矿] TD924