【作者】 黄云平； 王明康； 廖佳； 陈家栋；

【Author】 Huang Yunping~1 Wang Mingkang~2 Liao Jia~1 Chen Jiadong~1 (1.Kunming Metallurgical Research New Materials Co.,Ltd.2.Shangchang Iron Mine of Kunming Iron and Steel Group Co.,Ltd.)

【机构】 昆明冶研新材料股份有限公司； 昆明钢铁集团有限公司上厂铁矿；

【摘要】 介绍昆明钢铁公司上厂铁矿老尾矿进行再回收利用试验研究成果和生产实践情况。该矿现有尾矿约800万t,含TFe21%～22%,有用矿物为赤铁矿及少量褐铁矿。其中,-0.037 mm部分占72.26%,-0.005 mm有30.88%,以原生泥居多。采用SLon-φ100型周期式脉动高梯度磁选机对尾矿进行全粒级入选,通过将聚磁介质棒规格由φ3 mm改为φ2 mm和强化粗选等条件试验,获得产率为18.39%、含TFe52.21%、回收率44.40%的铁精矿。近2年生产表明,各项技经指标已达到试验水平,预计可从尾矿中回收铁精矿约140万t。更多还原

【Abstract】 The paper introduces the researches on recycling utilization of tailings in Shangchang Iron Mine of Kunming Iron and Steel Group Co.,Ltd and its production practice.Currently,this mine has the tailings of 8Mt containing TFe 21%～22%,and the hematite ores and small quantities of limonite ores are valued,where -0.037 mm of ores occupies 72.26%,and -0.005 mm of 30.88%.The SLon -φ100 periodic pulsating high gradient magnetic separator is adopted to separate the tailings.Adjusting the magnetic media ofφ3 mm toφ2 mm,and strengthening the rough concentration,the iron concentrates with yields of 18.39%,TFe grade of 52.21%and recovery of 44.40%were obtained.In recent years, the practices showed that each index could reach the experimental level.It is predicted that 1.4Mt of Fe concentrates can be recovered from tailings.更多还原