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金属矿山 ›› 2011, Vol. 40 ›› Issue (10): 1-8.

• 专题综述 •    下一篇

应用SLon磁选机提高选钛回收率的回顾与展望

熊大和1,2
  

  1. 1.赣州金环磁选设备有限公司;2.赣州有色冶金研究所
  • 出版日期:2011-10-11 发布日期:2011-10-12

Review and Prospect of SLon Magnetic Separators on Raising Ilmenite Recovery

Xiong Dahe1,2   

  1. 1.Ganzhou SLon Magnetic Separator Ltd.;2.Ganzhou Nonferrous Metallurgy Research Institute
  • Online:2011-10-11 Published:2011-10-12

摘要: 我国攀枝花和承德等地区拥有丰富的钒钛磁铁矿资源,早期的选钛以重选和电选为主,大量的细粒钛铁矿损失在尾矿中,TiO2的选矿回收率只有10%左右。自1994年以后,SLon立环脉动高梯度磁选机开始在钛铁矿选矿工业中应用,使细粒级和微细粒级钛铁矿得到了较好的回收。随着SLon磁选机的应用和浮选新技术的发展,我国钛铁矿选矿技术水平得到了迅速的提高,目前选钛生产回收率已可达到40%。然而,我国选钛回收率还有较大的提高潜力,通过优化选矿流程和设备,选钛回收率有可能达到50%~60%,若能在-20 μm钛铁矿选矿技术方面取得突破并从强磁选和浮选尾矿中再选出一部分次钛精矿,则选钛回收率有望达到70%。  

关键词: SLon立环脉动高梯度磁选机, 钛铁矿选矿, TiO2回收率

Abstract: There are abundant deposits of magnetite associated with vanadium and titanium in Panzhihua region,Chengde region and other places in China. In the early days,ilmenite is mainly recovered by gravity separation and electric separation. TiO2 recovery can only reach about 10% and enormous fine ilmenite particles are lost in the tails. From 1994,SLon vertical ring and pulsating high gradient magnetic separators are applied into ilmenite processing industry,which can effectively recover fine ilmenite particles. The development of SLon magnetic separators and flotation technology promoted the rapid development of ilmenite processing technology in China. Nowadays,ilmenite recovery has normally reached 40%. However,there is still great potential to raise ilmenite recovery in China. Through optimizing ilmenite processing flow sheet and equipments,ilmenite recovery still can be raised to 50%~60%. If the breakthrough on beneficiation technology for -20 μm ilmenite is made to recover some of titanium ores from the high intensity magnetic separation and tailings flotation,the titanium recovery is expected to reach 70%.  

Key words: SLon vertical ring and pulsating high-gradient magnetic separator, Beneficiation of ilmenite, Recovery ratio of TiO2