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金属学报  1983, Vol. 19 Issue (1): 83-93    
  论文 本期目录 | 过刊浏览 |
选别东鞍山赤铁矿磁种分选新方法的研究
幸伟中;徐建本
冶金工业部矿冶研究总院;冶金工业部矿冶研究总院
INVESTIGATION OF NEW METHOD OF MAGNETIC SEEDING FOR CONCENTRATION OF DONG'ANSHAN HEMATITE ORE
XING Weizhong; XU Jianben(Beijing Mining and Metallurgical Research Institute)
引用本文:

幸伟中;徐建本. 选别东鞍山赤铁矿磁种分选新方法的研究[J]. 金属学报, 1983, 19(1): 83-93.
, . INVESTIGATION OF NEW METHOD OF MAGNETIC SEEDING FOR CONCENTRATION OF DONG'ANSHAN HEMATITE ORE[J]. Acta Metall Sin, 1983, 19(1): 83-93.

全文: PDF(2370 KB)  
摘要: 本文主要论述采用团聚磁种分选新方法分选东鞍山赤铁矿的研究结果。系统地考察和讨论了磁种数量、搅拌时间、捕收-团聚剂的用量及比例、调浆浓度、速度、水质、介质pH值等因素对分选的影响。研究指出,强烈搅拌和高浓度对团聚磁种分选过程起着重要的作用。绘制了磁种分选法及其分类的流程示意图。采用该新方法从赤铁矿和石英(1∶1)的人工混合物中,得到品位为66.85%、回收率为99.02%的精矿,尾矿含铁只有0.67%。从含铁为32%的东鞍山赤铁矿原矿中可得到品位为53.1%、回收率为95.3%的粗精矿。上述结果也为司家营赤铁矿的试验所证实。初步研究结果表明,磁种分选法具有广泛潜在应用的可能。
Abstract:An attempt was made to develop the new method of magnetic seeding for concentration of Dong'anshan hematite ore, on which the influence of such factors as magnetic seed dose rate, stirring time, dose rate and proportion of collector-agglomerant, density and speed of repulping pulp conditioning, quality of water, pH of medium, etc. has been systematically investigated and discussed. It was shown that the vigorous stirring and high density contribute to agglomeration magnetic seeding process. A diagramatic flowsheet illustrating the separation process by magnetic seeding and its classification was established. A concentration grade of 66.85% Fe and recovery of 99,02% as well as waste tailing of 0.67% Fe were obtained by using this new method from a synthetic mineral mixture of hematite and quartz(1:1). And also concentrates containing 53.1% Fe and recovery of 95.3% were yielded from Dong'anshan crude ore assaying 32%Fe. This results have been verified by the tests of same procedure for Sijiayin hematite ore. Preliminary industrial practice seems to make sure of that the separation process utilizing the magnetic seeding would have potential possibility for concentration of Dong'anshan hematite or other similar ores.
收稿日期: 1983-01-18     
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