摘要
为解决大冶铁矿入磨粒度粗、能耗高的问题,对原细碎产品进行了高压辊磨破碎试验,确定适宜的高压辊磨工艺参数为:辊间压力10 MPa、给料水分2%、辊面转速0.26 m/s。高压辊磨闭路试验结果表明,高压辊磨细碎可明显降低磨矿能耗、提高矿物解离度。对高压辊磨和颚式破碎所得产品分别进行了磨矿⁃浮选试验,结果表明,高压辊磨能提升浮选产品回收率,铜、铁、硫回收率分别提高2.56、1.93、1.44个百分点。
For solving the problems of coarse feed size for grinding and high energy consumption in processing Daye Iron Ore,an experiment was carried out with high pressure roller grinding(HPRG)to mill the fine crushing products.The parameters of pressure between rollers,the water content of feed and the rotational speed at roller surface were optimized correspondingly as 10 MPa,2%and 0.26 m/s.A closed⁃circuit test shows that HPRG can obviously reduce grinding energy consumption and improve mineral liberation degree.Jaw crushing and HPRG products were then taken as the feed for grinding⁃flotation test and it is shown that HPRG can improve flotation recovery,with recoveries of Cu,Fe and S all up by 2.56,1.93 and 1.44 percentage points,respectively.
作者
王中才
陈兴
韦东
陈铁军
白光星
WANG Zhongcai;CHEN Xing;WEI Dong;CHEN Tiejun;BAI Guangxing(Daye Iron Mine Co Ltd,WISCO,Wuhan 435000,Hubei,China;School of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Key Laboratory of Efficient Utilization and Agglomeration of Metallurgical Mineral Resources of Hubei Province,Wuhan 430081,Hubei,China)
出处
《矿冶工程》
CAS
北大核心
2023年第2期81-85,共5页
Mining and Metallurgical Engineering
关键词
铁矿
高压辊磨
破碎
浮选
iron ore
high pressure roller grinding
crushing
flotation
作者简介
王中才(1977—),男,湖北浠水人,高级工程师,主要研究方向为复杂铁矿的分选;通信作者:陈铁军(1973—),男,湖南株洲人,教授,博士研究生导师,主要研究方向为复杂铁矿的分选、烧结球团和二次资源综合利用。
