程潮铁精矿带式磁选提质试验研究  

Experimental Study on Upgrading of Chengchao Iron Concentrate by Belt Magnetic Separation

作　　者：周仙霖[1,2] 郑子康 万军营 陈铁军 潘静娴[3] 罗艳红 ZHOU Xianlin;ZHENG Zikang;WAN Junying;CHEN Tiejun;PAN Jingxian;LUO Yanhong(School of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Province Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources,Wuhan 430081,China;Wuhan Fengjing Magnetic Separation Technology Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081 [2]冶金矿产资源高效利用与造块湖北省重点实验室,湖北武汉430081 [3]武汉峰境磁选技术有限公司,湖北武汉430074

出　　处：《金属矿山》2024年第7期81-86,共6页Metal Mine

基　　金：湖北省重点研发计划项目(编号:2022BCA062);湖北省教育厅科学研究计划指导性项目(编号:B2022014)。

摘　　要：针对氢基还原竖炉所需高品位铁精矿原料短缺问题,对程潮铁精矿进行磁滚筒精选、弱磁选—磁选柱精选以及带式磁选机精选提质研究。结果表明,在磨矿细度为-0.037 mm占85%时,采用两段带式磁选流程,可以得到TFe品位为70.16%、产率为87.33%、TFe回收率为92.51%的精矿产品;优化带式磁选参数并额外新增一排清洗水出水口进行磁选,得到精矿TFe品位为70.78%、产率为45.71%,尾矿TFe品位为62.40%、产率为54.29%。带式磁选精选2个流程均能获得TFe品位符合要求的精矿产品,且额外新增一排清洗水出水口的流程得到的尾矿产品可以直接利用。本研究可为国内优质磁铁精矿提质制备高品位铁精矿提供参考。Aiming at the shortage of high-grade iron concentrate required for hydrogen-based reduction shaft furnaces,this study investigates the upgrading of Chengchao iron concentrate through magnetic drum concentration,weak magnetic separation-magnetic column concentration,and belt magnetic separation.The results indicate that when the grinding fineness is-0.037 mm accounting for 85%,two-stage belt magnetic separation process can achieve TFe grade of 70.16%,yield of 87.33%,and TFe recovery rate of 92.51%.By optimizing the parameters of belt magnetic separation and adding an additional row of washing water outlets for magnetic separation,concentrate with TFe grade of 70.78%and yield of 45.71%is obtained,while the tailings have TFe content of 62.40%and yield of 54.29%.Both belt magnetic separation concentration can produce concentrate products with the required TFe grade,and the tailings obtained from the process with the additional washing water outlet could be utilized directly.This study provides a reference for the preparation of high quality iron concentrate from domestic fine-grained magnetite concentrate.

关 键 词：程潮铁矿 提质 高品位铁精矿 磁选柱 带式磁选 

分 类 号：TD924[矿业工程—选矿] TF046[冶金工程—冶金物理化学]