摘要
为了解决弓长岭选矿厂现有生产工艺中流程长、磨矿能耗高等问题,开展了高压辊粉碎—湿式预选试验。研究结果表明:在高压辊磨机辊面间距10 mm、辊面压力10.5 MPa、辊面转速14 r/min、给矿粒度-3 mm、磁场强度240 kA/m的最优条件下,可获得预选粗精矿全铁品位36.30%,抛尾率31.84%,铁回收率88.19%的技术指标;该工艺可提高选矿厂的处理能力和铁精粉产量,对提高企业经济效益具有重要意义。
In order to solve the problems of long process and high grinding energy consumption in the existing production process of Gongchangling Concentrator,a high pressure roller crushing-wet preconcentration test was carried out.The results show that under the optimal conditions of roller surface spacing of 10 mm,roller surface pressure of 10.5 MPa,roller surface speed of 14 r/min,feed particle size of-3 mm and magnetic field strength of 240 kA/m,the technical indexes of total iron grade of 36.30%,tailings throwing rate of 31.84%and iron recovery rate of 88.19%can be obtained.This process can improve the processing capacity and iron concentrate production of the concentrator,which is of great significance to improve the economic benefits of the enterprise.
作者
董利娟
杜艳清
余莹
刘瑞冬
程福超
肖赫
高峰
岳贵琳
王家奇
DONG Lijuan;DU Yanqing;YU Ying;LIU Ruidong;CHENG Fuchao;XIAO He;GAO Feng;YUE Guilin;WANG Jiaqi(Mineral Processing Branch of Ansteel Group Mining Gongchangling Co.,Ltd.;Dagushan Pellet Plant of Ansteel Group Mining Co.,Ltd.;Gongchangling Pellet Plant of Ansteel Group Mining Co.,Ltd.;School of Resources and Civil Engineering,Northeastern University;National Local Joint Engineering Research Center for Efficient Development and Utilization of Refractory Iron Ore Resources)
出处
《现代矿业》
CAS
2023年第1期126-131,共6页
Modern Mining
关键词
高压辊磨机
破碎
湿式预选
铁矿石
high pressure roller mill
crush
wet pre-separation
iron ore
