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金属矿山 ›› 2008, Vol. 38 ›› Issue (03): 147-149.

• 综合利用 • 上一篇    下一篇

全尾矿分级浓缩试验研究

吕宪俊,崔学奇,葛会超   

  1. 山东科技大学
  • 出版日期:2008-03-15 发布日期:2011-07-21
  • 基金资助:

    国家科技支撑计划项目(编号:2006BAB02A01)。

Investigation on Classified Thickening of Total Tailing

Lu  Xianjun,Cui Xueqi,Ge Huichao   

  1. Shandong University of Science and Technology
  • Online:2008-03-15 Published:2011-07-21

摘要: 以某细粒铁矿尾矿为研究对象,进行了全尾矿高浓度浓缩试验研究。研究表明,采用水力旋流器能够使低浓度尾矿浆得到有效浓缩,在给矿浓度为10%~28%时,φ100~150 mm水力旋流器底流浓度可以达到70%左右,底流产率可达到6500%左右。水力旋流器溢流中的微细颗粒经过高效浓密机进一步浓缩后,浓度可达到45%~50%。采用水力旋流器-浓密机二段分级浓缩流程能够实现全尾矿的高浓度浓缩,在给矿浓度为10%~28%时,尾矿综合浓度可达到60%以上。

关键词: 全尾矿, 分级浓缩, 水力旋流器

Abstract: High concentration thickening of total tailing was investigated on a fine iron ore tailing. The results indicate that the application of hydrocyclone can effectively thicken the low concentration tailing. At a feed concentration of 10%~28%, the underflow concentration of φ100~150 mm hydrocyclone can reach about 70%, with the underflow yield being about 65%.The concentration of the micro-fine particles in the overflow can reach 45%~50% when further thickened by highly effective thickener. The application of “hydrocyclone-thickener” two-stage classified thickening can help realize a highly concentrated thickening of total tailing, with the overall concentration of tailing being above 60% at a feed concentration of 10%~28%.

Key words: Total tailing, Classified thickening, Hydrocyclone