东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (9): 1335-1338.DOI: -

• 资源与土木工程 • 上一篇    下一篇

高压辊磨超细碎对攀西钒钛磁铁矿分选的影响

李丽匣1，袁致涛1，郭小飞1，谢琪春2   

  1. (1东北大学资源与土木工程学院，辽宁沈阳110819；2攀钢集团矿业有限公司，四川攀枝花617067)
  • 收稿日期:2013-01-15 修回日期:2013-01-15 出版日期:2013-09-15 发布日期:2013-04-22
  • 通讯作者: 李丽匣
  • 作者简介:李丽匣(1980-)，女，河北定州人，东北大学副教授，博士；袁致涛(1971-)，男，湖北大冶人，东北大学教授.
  • 基金资助:
    国家科技支撑计划项目(2012BAB14B05)；教育部新世纪优秀人才支持计划项目(NCET-10-0308)；国家高技术研究发展计划项目(2012AA062301).

Influence of Ultrafine Comminution by HPGR on Separation of VTi Magnetite in Panxi

LI Lixia1， YUAN Zhitao1， GUO Xiaofei1， XIE Qichun2   

  1. 1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Pangang Group Mining Co.Ltd.， Panzhihua 617067， China.
  • Received:2013-01-15 Revised:2013-01-15 Online:2013-09-15 Published:2013-04-22
  • Contact: LI Lixia
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摘要： 对攀西钒钛磁铁矿进行了高压辊磨超细碎及其选别试验.当入料d80为155mm时，辊压中料-32mm产率为9105%，-0074mm产率为1529%，P80降低至155mm，边料及闭路循环工艺对粉碎产品粒度特性的影响也非常明显.采用“铁钛平行分选”工艺对高压辊磨超细碎的-32mm攀西钒钛磁铁矿进行了选别试验.结果表明，选铁流程在磨矿细度为-0074mm占45%时，铁精矿Fe品位可达5505%，回收率7064%；选钛流程在-0074mm占80%时，钛精矿TiO2品位4778%，回收率3516%.

关键词: 高压辊磨机, 料层粉碎, 超细碎, 攀西钒钛磁铁, 铁钛平行分选

Abstract: Experiments of ultrafine comminution by HPGR and separation on VTi magnetite in Panxi were done. When d80 of feeding is 155mm，the yield of -32mm for the roll grinding centre product is 9105%，the yield of -0074mm is 1529% and P80 of roll grinding products is reduced to 155mm. The effect of circulation technology of edge product and closedcircuit on the size characteristics of crushed product was very obvious. Separating tests were performed on -32mm Panxi VTi magnetite from ultrafine comminution by HPGR using process of parallel separation of Fe and Ti. The results show when grind fineness is -0074mm 45%， Fe grade of iron concentrate is 5505% and recovery is 7064% in iron separation flowsheet， while TiO2 grade of titanium concentrate is 4778% and recovery is 3516% in titanium separation flowsheet at -0074mm 80%.

Key words: highpressure grinding roll(HPGR), interparticle comminution, ultrafine comminution, VTi magnetite in Panxi, parallel separation of Fe and Ti

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