矿产综合利用Issue(1)：106-110,5.DOI:10.3969/j.issn.1000-6532.2018.01.023
袁家村铁矿尾矿再选试验研究
Experimental Study on Reelection for Yuanjiacun Iron Tailings
摘要
Abstract
Iron grade of Yuanjiacun iron synthetic tailings is 17.50％,in which iron exists mainly in form of hematite-limonite and magnetite.The content of harmful elements such as sulfur,phosphorus is very low.In order to provide technical basis for comprehensive utilization of the tailing,the process of pre-concentrationmagnetizing roast-magnetic separation was carried out.The results indicated that:at the grinding fitness of-0.037mm 75％,roughing background field intensity at 478 kA/m and cleaning background magnetic induction intensity at 398 kA/m,the high intensity pre-concentration concentrate with iron grade of 23.24％and recovery of 86.38％ was obtained.With gas flow rate of 5 m3/h,CO concentration 30％,roasting temperature at 560℃ for 15 min,roasted product grinding fineness of 90％-0.037 mm and low intensity magnetic field intensity at 88 kA/m,the iron grade of 61.82％ and operation recovery of 80.91％(General iron recovery was 55.98％) can be obtained.关键词
铁矿尾矿/强磁选预富集/磁化焙烧,弱磁选Key words
Iron tailing/High-intensity magnetic pre-concentration/Magnetizing roasting/Low-intensity magnetic separation分类
矿业与冶金引用本文复制引用
唐志东,韩跃新,李艳军,高鹏,栗艳锋..袁家村铁矿尾矿再选试验研究[J].矿产综合利用,2018,(1):106-110,5.基金项目
中央高校基本科研业务费重大科技创新项目(N160106001、N140108001) （N160106001、N140108001）
国家自然科学基金项目(51674065) （51674065）
