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金属矿山 ›› 2008, Vol. 38 ›› Issue (10): 60-63.

• 矿物工程 • 上一篇    下一篇

某低品位钒钛磁铁矿选铁试验研究

张俊辉1,2,张渊2   

  1. 1.江西理工大学;2.中国地质科学院矿产综合利用研究所
  • 收稿日期:2008-08-15 出版日期:2008-10-15 发布日期:2011-07-13

Experimental Research on the Iron Separation from a Low Grade Vanadiferous Titano-Magnetite Ore

Zhang Junhui1,2,Zhang Yuan2   

  1. 1.Jiangxi University of Science and Technology;2.Institute of Multipurpose Utilization of Mineral Resources, CAGS
  • Received:2008-08-15 Online:2008-10-15 Published:2011-07-13

摘要: 采用粗粒抛尾—阶段磨矿、阶段弱磁选工艺对某低品位钒钛磁铁矿进行了选铁试验研究。结果表明:原矿在10~0 mm粒度下经双层永磁辊式磁选机进行弱磁选+强磁选粗粒抛尾,可以抛出产率为9%左右的合格尾矿,铁在粗粒尾矿中的损失仅为3%左右;预先抛尾获得的粗粒精矿在一段磨矿细度为-200目占50%、二段磨矿细度为-200目占85%的条件下,通过两段弱磁选,可获得铁品位为57.08%、TiO2含量为11.92%、铁回收率为53.16%的铁精矿。

关键词: 低品位钒钛磁铁矿, 粗粒抛尾, 阶段磨选, 双层永磁辊式磁选机

Abstract: Test was made on separating iron from a low grade Vanadiferous titano-magnetite ore by a process of tailing discarding at a coarser size, staged grinding and staged low intensity magnetic separation. The results show that when the run-of-mine ore is treated by double-layered roll type magnetic separators including low and high intensity magnetic separation at 10~0 mm size, qualified tailings of about 9% yield can be discarded, with an iron loss in the coarse tailing being only about 3%. The coarse concentrate is grounded in two stages, with the first stage grinding size being 50% -200 mesh and the second stage, 85% -200 mesh, and then treated by two stage low intensity magnetic separation. As a result, an iron concentrate containing 57.08% iron and 11.92% TiO2 and having an iron recovery of 53.16% can be achieved.

Key words: Low grade Vanadiferous titano-magnetite ore, Tailing discarding at a coarser size, Staged grinding, Double-layered roll type magnetic separators