| 镜铁矿粉矿磁化焙烧-磁选试验研究 |
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| 引用本文： | 马浩,陈铁军,黄献宝,苏涛,屈万刚.镜铁矿粉矿磁化焙烧-磁选试验研究[J].矿冶工程,2015,35(5):39-41. |
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| 作者姓名： | 马浩 陈铁军 黄献宝 苏涛 屈万刚 |
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| 作者单位： | 1.武汉科技大学 资源与环境工程学院, 湖北 武汉 430081;
2.冶金矿产资源高效利用与造块湖北省重点实验室, 湖北 武汉 430081 |
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| 摘 要： | 以甘肃地区镜铁矿粉矿为原料, 采用磁化焙烧-弱磁选工艺, 研究了焙烧温度、焙烧时间、还原剂用量、磨矿细度、磁场强度等对磁选效果的影响。结果表明, 在煤粉用量2%、焙烧温度800 ℃、焙烧时间60 min条件下焙烧, 再在磨矿细度-0.074 mm粒级占85.36%、磁场强度92.16 kA/m条件下磁选, 可得到品位为54.95%、回收率为88.92%的弱磁选精矿。
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| 关 键 词： | 镜铁矿 磁化焙烧 弱磁选 铁精矿 |
| 收稿时间： | 2015-04-12 |
Experimental Study on Magnetizing Roasting-Magnetic Separation of Fine Specularite |
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| MA Hao,CHEN Tie-jun,HUANG Xian-bao,SU Tao,QU Wan-gang.Experimental Study on Magnetizing Roasting-Magnetic Separation of Fine Specularite[J].Mining and Metallurgical Engineering,2015,35(5):39-41. |
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| Authors: | MA Hao CHEN Tie-jun HUANG Xian-bao SU Tao QU Wan-gang |
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| Affiliation: | 1.College of Resource and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;
2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, Hubei, China |
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| Abstract: | A flowsheet of magnetizing roasting-low intensity magnetic separation (LIMS) was adopted to treat a fine specularite ore from Gansu, and the influence of processing parameters including roasting temperature, roasting time, coal dosage, grinding fineness and magnetic field intensity on separation efficiency was investigated. The results show that with coal powder dosage of 2% and roasting process at 800 ℃ for 60 min, with grinding fineness of -0.074 mm 85.36% and beneficiation at a magnetic field intensity of 92.16 kA/m, a LIMS iron concentrate with iron grade and recovery of 54.95% and 88.92%, respectively, can be prepared. |
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| Keywords: | specularite magnetizing roasting low intensity magnetic separation iron concentrate |
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