欢迎访问昆明冶金高等专科学校学报官方网站,今天是 分享到:

昆明冶金高等专科学校学报 ›› 2015, Vol. 31 ›› Issue (5): 26-30.DOI: 10. 3969/j. issn. 1009一0479.2015.05.005

• 资源开发与测绘 • 上一篇    下一篇

云南某铅锌尾矿选铁试验研究

杨清荣 1,2,张桂芳 2,严 鹏 2   

  1. 1. 昆明冶金高等专科学校机械工程学院,云南 昆明 650033;2. 昆明理工大学国土资源工程学院,云南 昆明 650093
  • 收稿日期:2015-03-20 出版日期:2015-11-30 发布日期:2015-11-30
  • 作者简介:杨清荣(1964一),男,云南昆明人,副教授,工学硕士,主要从事矿物加工与机械设计工作与研究。

Experimental Study on Iron Separation from a Lead一Zinc Tail in Yunnan Province

YANG Qing-rong 1,2,ZHANG Gui-fang 2,YAN Peng 2   

  1. 1. Faculty of Mechanical Engineering,  Kunming Metallurgy College, Kunming 650033,China;
    2.  Faculty of Land and Resource Engineering, Kunming University of Science and Technology,Kunming 650093,China
  • Received:2015-03-20 Online:2015-11-30 Published:2015-11-30

摘要:

云南某铅锌矿山每年会产生10万t浮选尾矿,该浮选尾矿含铁8. 72%,含硫0. 94%,含磷0. 14%,其他杂质含量不高,如果直接对尾矿进行堆储,会使矿山成本压力增大、资源浪费。对此,采用弱磁选一强磁选一浮选脱硫的联合工艺流程来获得粗精矿,其中浮选采用一粗一扫的流程,硫铁矿的活化剂为H2SO4和MHH—1混合而成。通过弱磁一强磁一浮选的联合工艺流程,可获得产率为10. 64%的铁精矿,其中Fe品位为58. 03 % ,  S含量为0. 20% ,  P含量为0. 09 % ,综合回收率为70.81%。

关键词: 铅锌尾矿, 选铁, 磁选, 浮选脱硫

Abstract:

A lead一zinc mine in Yunnan produces annually 100 000 t of flotation tailings.  Flotation tailings contains iron 8. 72%, sulfur 0. 94%,phosphorus 0. 14%  and other impurities. Direct storage  of tailings pile can lead to increase mine cost pressures and waste of resources. The rough concentrate was obtained by using weak magnetic-intensity magnetic separation-flotation desulfurization joint process, where in the flotation process uses a thick and sweep process. H2SO4 and MHH-1 are mixed as activating agent of pyrite.  Experimental studies joint process of weak magnetic separation showed that qualified iron concentrate could be obtained by a strong magnetic separation一flotation desulfurization,which the Fe content is 58.02%, the impurities content of sulfur, phosphorus are respectively 0.20% and 0.09%, and comprehensive recovery rate is 70. 81%.

Key words: lead一zinc tailings, iron separation, magnetic separation, flotation desulfurization

中图分类号: