弓长岭铁矿石高压辊粉碎—湿式预选试验研究  

Research on High Pressure Roller Crushing-Wet Pre-separation Test of Gongchangling Iron Ore

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)

机构地区：[1]鞍钢集团矿业弓长岭有限公司选矿分公司,辽宁省辽阳市111008 [2]鞍钢集团矿业有限公司大孤山球团厂 [3]鞍钢集团矿业有限公司弓长岭球团厂 [4]东北大学资源与土木工程学院 [5]难采选铁矿资源高效开发利用技术国家地方联合工程研究中心

出　　处：《现代矿业》2023年第1期126-131,共6页Modern Mining

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.

关 键 词：高压辊磨机 破碎 湿式预选 铁矿石 

分 类 号：TD951[矿业工程—选矿]