摘要
为促进眼前山铁矿的合理开发利用,以该地区矿石为研究对象在工艺矿物学分析的基础上进行了选别试验研究。结果表明:矿石含铁矿物以磁铁矿为主,主要脉石矿物为石英,并存在绿泥石、角闪石等易泥化矿物。采用阶段磨矿阶段选别工艺进行分选,各段工艺参数分别为一段-2 mm下进行磁选,磁选场强为279 kA/m;一段磨矿细度为-75μm含量80%,磁选场强为159 kA/m;二段磨矿细度为-45μm占90%,磁选场强为95 kA/m,最终可获得铁品位66.50%、铁回收率95.90%的磁选精矿。研究结果为该地区铁矿资源的开发利用提供了参考依据。
In order to promote the rational development and utilization of Yanqianshan iron ore,the ore in this area was taken as the research object,and the separation test was carried out on the basis of pro⁃cess mineralogy analysis.The results show that the iron-bearing minerals of the ore are mainly magnetite,the main gangue minerals are quartz,and there are clay minerals such as chlorite and hornblende.It is de⁃termined that the separation process is stage grinding stage separation.The process parameters of each sec⁃tion are magnetic separation at a section of-2 mm,and the magnetic separation field strength is 279 kA/m.The first-stage grinding fineness is-75μm content 80%,and the magnetic separation field strength is 159 kA/m.The second-stage grinding fineness is 90%of-45μm,and the magnetic separation field strength is 95 kA/m.Finally,a magnetic concentrate with iron grade of 66.50%and iron recovery of 95.90%can be obtained.The research results provide a reference for the development and utilization of iron ore re⁃sources in this area.
作者
智慧
陈晓云
李志明
任海龙
尹华光
董振海
祝昕冉
ZHI Hui;CHEN Xiaoyun;LI Zhiming;REN Hailong;YIN Huaguang;DONG Zhenhai;ZHU Xinran(Ansteel Group Beijing Research Institute Co.,Ltd.;Yanqianshan Branch,Ansteel Group Mining Co.,Ltd.;School of Resources and Civil Engineering,Northeastern University)
出处
《现代矿业》
CAS
2024年第6期166-169,共4页
Modern Mining
关键词
磁铁矿
工艺矿物学
易泥化矿物
阶段磨矿阶段选别
magnetite
process mineralogy
minerals easy to mud
stage grinding and stage separation
