欢迎访问《现代矿业》杂志官方网站,今天是 分享到:

现代矿业 ›› 2019, Vol. 35 ›› Issue (09): 121-125.

• 矿物加工工程 • 上一篇    下一篇

南芬露天铁矿北山部位矿石选矿新技术及工艺试验

肖启飞1,石云良2,刘军3   

  1. 1.本溪钢铁(集团)有限责任公司南芬选矿厂;2.长沙矿冶研究院有限责任公司; 3.中钢集团马鞍山矿山研究院有限公司
  • 出版日期:2019-09-25 发布日期:2019-09-25
  • 基金资助:

    * 2018年安徽省重点研究与开发计划面上攻关项目(编号:1804a0802212)。

Study on New Technology and Process of Ore Dressing in Beishan site of Nanfen Open Pit Iron Mine

Xiao Qifei1,Shi Yunliang2,Liu Jun3   

  1. 1.Nanfen Mining Plant,Benxi Steel(Group) Co.Ltd.;2.Changsha Institute of Mining and Metallurgy Co.Ltd.;3.Sinosteel Maanshan Institute of Mining Research Co.
  • Online:2019-09-25 Published:2019-09-25

摘要: 为了探索设计南芬露天铁矿北山部位矿石的工艺流程,针对该矿石进行了工艺矿物学研究,根据工艺矿物学研究结果设计了阶段磨矿—弱磁—中磁—强磁—磁化焙烧—弱磁选、阶段磨矿—弱磁—强磁—反浮选、阶段磨矿—弱磁—强磁—重选—反浮选3种工艺流程,并进行了试验室流程试验,根据流程试验数据确定阶段磨矿—弱磁—强磁—反浮选流程为最优流程,并获得了铁精矿全铁品位≥66%,全铁回收率≥75%的满意指标。

关键词: 北山部位矿, 工艺矿物学, 焙烧, 浮选, 重选

Abstract: In order to explore the ore process of Beishan Site of Nanfen Open Pit Iron Mine,the process mineralogical research was carried out on the ore.According to the results of the process mineralogical research,three kinds of technological processes are designed for the stage grinding-low intensity magnetic separation-high intensity magnetic separation-magnetization roasting-low intensity magnetic separation process,stage grinding-low intensity magnetic separation-high intensity magnetic separation-reverse flotation process,and stage grinding-low intensity magnetic separation-high intensity magnetic separation-reverse flotation process.Laboratory process tests were carried out,the optimum process stage grinding-low intensity magnetic separation-high intensity magnetic separation-reverse flotation was determined.Satisfaction index of iron concentrate with iron grade over 66%,and iron recovery over 75% was obtained.

Key words: Beishan site ore, Process mineralogy, Roasting, Flotation, Gravity separation