摘要
为了进一步提高大红山铁矿精矿品位,采用磁场筛选机对大红山400万t/a选厂的2次和3次弱磁选精矿进行工业分流精选试验,经对3次弱磁选精矿进行磁筛精选后,精矿铁品位由65.16%提高到67.27%,精选作业铁回收率89.24%,精矿中S iO2由5.82%降到了3.97%,说明磁筛对该矿具有显著地提铁降硅的效果。
In order to further enhance iron ore concentrate grade of Dahongshan,an industrial cleaning separation test is carried out for the second-stage and third-stage weak magnetic concentrate by adopting the magnetic field screening separator in Dahongshan 4 million t/a processing plant.After three magnetic separations,iron concentrate grade is increased from 65.16% up to 67.27% with iron recovery of 89.24%.And SiO2 content in concentrate is dropped to 3.97% from 5.82%.It is shown that the magnetic screen has a significant effect on iron increase and silicon reduction.
出处
《金属矿山》
CAS
北大核心
2010年第9期47-50,共4页
Metal Mine
关键词
磁铁矿
弱磁选精矿
磁筛精选
提铁降硅
Magnetite
Weak magnetic concentrate
Cleaning separation by magnetic screening
Iron improvement and silicon reduction
