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金属矿山 ›› 2010, Vol. 39 ›› Issue (07): 63-66.

• 矿物工程 • 上一篇    下一篇

昆钢大红山二选厂强磁选精矿提质降硅技改实践

刘仁刚, 沈立义, 刘洋   

  1. 昆钢玉溪大红山矿业有限公司
  • 出版日期:2010-07-15 发布日期:2010-11-09

Technical Improvement Practice on Quality Increase and Silicon Reduction of High-intensity

Liu Rengang,Shen Liyi,Liu Yang   

  1. KunSteel Yuxi Dahongshan Mining Company
  • Online:2010-07-15 Published:2010-11-09

摘要: 昆钢大红山铁矿二选厂采用振动螺旋溜槽+摇床重选工艺代替浮选工艺,对铁品位49.43%,SiO2含量16.71%的强磁选精矿进行选别,精矿铁品位提高到58.71%,SiO2含量降到12.32%,铁回收率85.21%,达到了降低SiO2技改含量,提高铁精矿品位,节约成本的目的。

关键词: 强磁选精矿, 提质降杂, 浮选, 重选

Abstract: The second concentractor of Kunsteel Dahongshan iron mine adopted the gravity separation process of shaking table with vibrating spiral chute in replacement of the flotation craft. It separates the high-intensity magnetic separation concentrate with Fe grade of 49.43% and SiO2 content of 16.71%. The iron concentrate with Fe grade increases to 58.71%, SiO2 content decreases to 12.32%, Fe recovery reaches 85.21%. The purpose of reducing SiO2 content, improving the Fe concentrate grade and saving costs was accessed.

Key words: High-intensity magnetic separation concentrate, Quality improvement &, impurity reduction, Flotation, gravity separation