难处理铁矿资源的煤基还原磁化焙烧-磁选试验研究  

Study on Coal Base Reduction Magnetization Roasting-Magnetic Separation of Refractory Iron Ore Resources

作　　者：田锋 

机构地区：[1]兰州有色冶金设计研究院有限公司,甘肃兰州730900

出　　处：《矿产综合利用》2016年第2期65-69,共5页Multipurpose Utilization of Mineral Resources

摘　　要：本文针对西北某难处理铁矿石的具体情况,进行了多种选别方法探索试验,试验结果表明:采用煤基还原磁化焙烧,在焙烧温度为700℃,焙烧温度为30 min,煤粉配比为6%的条件下进行磁化焙烧,焙烧矿磁选全流程试验可获得铁精矿品位为63.78%,回收率为77.59%,试验取得了较为满意的结果。In this paper,according to the specific condition of a refractory iron ore in the northwest,exploring test was carried out by using a variety of methods. The test results showed when ng coal base reduction magnetization roasting is used,the calcination temperature is 700℃,calcination time is 30 min,the ratio of pulverized coal is 6%under the condition of magnetization roasting,the roasting ore magnetic separation full process can obtain the iron concentrate with the grade of 63. 78% and the recovery of 77. 59%. The result is satisfactory.

关 键 词：难处理铁矿 煤基还原剂 磁化焙烧 磁选 

分 类 号：TD951[矿业工程—选矿]