| 河北某低品位难处理铁矿选矿试验研究 |
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| 引用本文： | 甘永刚,宋永胜,李文娟.河北某低品位难处理铁矿选矿试验研究[J].金属矿山,2008,38(7):148-151. |
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| 作者姓名： | 甘永刚 宋永胜 李文娟 |
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| 作者单位： | 1.紫金矿业集团股份有限公司；2.北京有色金属研究总院 |
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| 摘 要： | 针对河北某低品位难处理铁矿进行了选矿试验研究。结果表明，采用原矿（-12 mm）预先抛废、二段磨矿、二次磁选、粗精集中分级再磨多次精选、中矿先脱泥沉砂分级再磨再选，可获得含铁6000%以上、回收率35.00%（对磁性铁回收率52.47%）的总精矿。将总精矿进一步分级，最终可获得含铁65%以上的铁精矿。
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| 关 键 词： | 磁赤铁矿 预先抛废 阶段磨矿阶段选别 磁选 |
| 收稿时间： | 2008-05-30 |
Experimental Study on Beneficiation of a Low Grade Refractory Iron Ore from Hebei |
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| Gan Yonggang,Song Yongsheng,Li Wenjuan.Experimental Study on Beneficiation of a Low Grade Refractory Iron Ore from Hebei[J].Metal Mine,2008,38(7):148-151. |
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| Authors: | Gan Yonggang Song Yongsheng Li Wenjuan |
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| Affiliation: | 1.Zijin Mining Co., Ltd.；2.General Research Institute of Nonmetals |
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| Abstract: | Experiment study was made on the beneficiation of a low grade refractory iron ore from Hebei.The results show that a comprehensive concentrate grading over 60.00% at an iron recovery of 35.00%（a corresponding magnetic iron recovery of 52.47%）can be obtained by a process composed of tailing pre-discarding from ROM ore（-12 mm), two stage grinding and two stage magnetic separation, centralized classification, re-grinding and several cleanings of the roughing concentrates and dewatering, classification, regrinding and re-concentration of the middling. A final iron concentrate grading over 65.00% can be gained through a further classification of the comprehensive concentrate. |
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| Keywords: | Magnetite and hematite Waste pre-discarding Magnetic separation Staged grinding and staged concentration |
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