| 某低品位微细粒铬铁矿选矿试验研究 |
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| 引用本文： | 阎赞,徐名特,王露,王想.某低品位微细粒铬铁矿选矿试验研究[J].矿业工程,2016(2):25-28. |
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| 作者姓名： | 阎赞 徐名特 王露 王想 |
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| 作者单位： | 1. 商洛学院化学工程与现代材料学院,陕西 商洛,726000;2. 辽宁科技大学,辽宁 鞍山,114051;3. 西安天宙矿业科技开发有限责任公司,陕西 西安,710301;4. 隆基电磁科技股份有限公司,辽宁 沈阳,113122 |
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| 基金项目： | 陕西省尾矿资源综合利用重点实验室开放基金项目(2014SKY-WK011)，陕西省科技统筹创新工程基金资助项目(2012KTDZ02-02-01) |
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| 摘 要： | 某低品位微细粒铬铁矿Cr_2O_3品位较低,为6.82%,且泥化现象严重。采用"重选前分级—两段螺旋溜槽—粗细分级—两段摇床"工艺流程处理此铬铁矿,最终可以获得Cr_2O_3品位49.20%,回收率54.39%的精矿。最终尾矿中TFe品位为43.11%,回收率为94.74%。对最终尾矿中的铁进行回收,经过两段强磁选试验,所得精矿TFe品位为45.25%,回收率为27.51%,微细粒级的泥化现象导致了选别效果不理想,有待在后续试验中进一步考察研究。
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| 关 键 词： | 铬铁矿 重选 磁选 |
Experimental Study on Beneficiation of a Low-grade Chromite Ore in Micro-fine Particle |
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| Abstract: | The Cr2 O3 grade is 6.82% of a low-grade and micro fine particle chromite with seriously argillization phenomenon. The flowsheet of “classification before gravity separation,two stages spiral chute separation,classification of coarse and fine particles,and two stages shake-table separation”was adopted to deal with the chromite. The results showed that the Cr2 O3 grade of the final concentrate was 49.20% and the recovery was 54.39%. The TFe grade of the final tailings was 43.11%,and the recovery was 94.97%. In order to recover iron in the tailings,two-stage high intensity magnetic separation test was carried out,which can obtain the concentration with TFe grade of 45.25% and recovery of 27.51%. The effect was not ideal because of the fine grained mud phenomenon and further researches would be studied in the subsequent experiments. |
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| Keywords: | chromite gravity separation magnetic separation |
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