| 大红山铁矿400万t/a选厂磁场筛选机工业试验 |
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| 引用本文： | 李迎国,雷晴宇.大红山铁矿400万t/a选厂磁场筛选机工业试验[J].金属矿山,2010,39(9):47-50. |
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| 作者姓名： | 李迎国 雷晴宇 |
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| 作者单位： | 1.中国地质科学院郑州矿产综合利用研究所；2.国家非金属矿资源综合利用工程技术研究中心 |
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| 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。
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| 关 键 词： | 磁铁矿 弱磁选精矿 磁筛精选 提铁降硅 |
Industrial Tests of the Magnetic Field Screening Separator in Dahongshan Iron Ore's 4 million t/a Concentrator |
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| Li Yingguo,Lei Qingyu.Industrial Tests of the Magnetic Field Screening Separator in Dahongshan Iron Ore's 4 million t/a Concentrator[J].Metal Mine,2010,39(9):47-50. |
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| Authors: | Li Yingguo Lei Qingyu |
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| Affiliation: | 1. Chinese Academy of Geological Sciences, Zhengzhou Institute of Multipurpose Utilization of Mineral Resources;2. National Engineering Center for Multipurpose Utilization of Non-metallic Mineral Resources |
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| Abstract: | 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. |
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| Keywords: | Magnetite Weak magnetic concentrate Cleaning separation by magnetic screening Iron improvement and silicon reduction |
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