| 国外某鲕状赤铁矿可选性研究 |
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| 引用本文： | 秦彩霞.国外某鲕状赤铁矿可选性研究[J].矿冶工程,2013,33(6):32-35. |
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| 作者姓名： | 秦彩霞 |
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| 作者单位： | 酒钢集团宏兴股份公司 选烧厂, 甘肃 嘉峪关 735100 |
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| 摘 要： | 对国外某鲕状赤铁矿进行了矿石性质研究, 针对其特点, 进行了焙烧-磁选工艺和强磁选工艺选矿试验, 结果表明该鲕状赤铁矿易选, 选矿指标好。对比而言, 焙烧-磁选工艺的选别指标优于强磁选工艺, 750 ℃下, 煤粉用量6%, 焙烧50 min, 所得焙烧矿经100 kA/m一粗一精弱磁选, 可获得精矿铁品位64.60%、回收率96.43%的指标, 精矿中SiO2含量为5.33%, 选矿比1.23倍。
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| 关 键 词： | 鲕状赤铁矿 选矿 磁选 焙烧 |
| 收稿时间： | 2013-06-23 |
Study on Beneficiability of Some Oolitic Hematite Ore from Abroad |
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| QIN Cai-xia.Study on Beneficiability of Some Oolitic Hematite Ore from Abroad[J].Mining and Metallurgical Engineering,2013,33(6):32-35. |
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| Authors: | QIN Cai-xia |
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| Affiliation: | Concentration and Sintering Plant, Jiusteel Group Hongxing Iron & Steel Co Ltd, Jiayuguan 735100, Gansu, China |
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| Abstract: | After an investigation on ore properties of an oolitic hematite ore from abroad, mineral processing tests were carried out adopting a roasting-magnetic separation flowsheet and a high intensity magnetic separation (HIMS) process. Results show this oolitic hematite ore possesses good beneficiability, and indexes obtained by roasting-magnetic separation approach are comparatively superior to that of HIMS process. After being roasted at 750 ℃ for 50 min with a coal dosage as 6%, the obtained roasted ore was subjected to a process of one-roughing and one-cleaning magnetic separation with magnetic field intensity of 100 kA/m, resulting in the concentrate around 96.43% iron grade at 64.60% recovery, containing 5.33% SiO2, with a concentration ration of 1.23. |
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| Keywords: | oolitic hematite beneficiation magnetic separation roasting |
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