欢迎访问《金属矿山》杂志官方网站,今天是 分享到:
×

扫码分享

金属矿山 ›› 2021, Vol. 50 ›› Issue (03): 136-141.

• 矿物工程 • 上一篇    下一篇

河北某铁矿工艺矿物学研究

高春庆,张凛,王海亮   

  1. 1. 中钢集团马鞍山矿山研究总院股份有限公司,安徽 马鞍山 243000;2. 华唯金属矿产资源高效循环利用国家工程研究中心有限公司,安徽 马鞍山 243000;3. 国家金属矿山固体废物处理与处置工程技术研究中 心,安徽 马鞍山 243000
  • 出版日期:2021-03-15 发布日期:2021-03-17

Study on Process Mineralogy of an Iron Ore in Hebei Province

GAO Chunqin,ZHANG Lin,WANG Hailiang   

  1. 1. Sinosteel Maanshan General Institute of Mining Research Co.,Ltd., Maanshan 243000, China;2. National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co.,Ltd., Maanshan 243000, China;3. National Metal Mine Solid Waste Treatment and Disposal Engineering Technology Research Center, Maanshan 243000, China
  • Online:2021-03-15 Published:2021-03-17

摘要: 河北沙河县境内某铁矿含铁丰富,并含有S、Co等有价元素。为研究矿石的工艺矿物学特性并制定合理的选矿方案,实现其综合利用,采用化学分析、XRD、显微镜、MLA等方法开展了矿石物质组成、矿石 结构构造、主要矿物嵌布特征、有用矿物单体解离度等研究。结果表明,矿石中Fe、Co、S含量分别为39.98%、0.017%、1.89%;Fe主要以磁铁矿的形式存在,Co、S主要以黄铁矿形式存在;矿石中的脉石矿物以方解石 、白云石等碳酸盐矿物为主;矿石主要呈块状构造、粒状结构;磁铁矿、黄铁矿主要呈中细粒嵌布,与脉石相互间的嵌布关系密切,需要通过细磨才能获得较好的解离度。依据工艺矿物学研究结果,推荐矿石采用“ 干式磁选抛尾—磨矿—弱磁选选铁—浮选钴硫”的选矿工艺。

关键词: 铁矿石, 工艺矿物学, 单体解离, 嵌布特征

Abstract: A certain iron ore in Shahe County,Hebei province,is rich in iron and contains valuable elements such as sulfur and cobalt. In order to study the process mineralogical characteristics of the ore and formulate a reasonable beneficiation scheme for achieving the comprehensive utilization, the research about material composition,ore structure,embedding characteristic of the major minerals,degree of dissociation of the value minerals were carried out by chemical analysis, XRD, microscope and MLA. The results showed that the contents of Fe,CO and S are 39.98%,0.017% and 1.89%, respectively. Fe is mainly in the form of magnetite,Co and S are mainly in the form of pyrite. The main gangues minerals are carbonate minerals like calcite and dolomite. The ore is mainly massive structure and granular structure. Magnetite and pyrite are mainly medium and fine particles, which are closely related to each other, so better monomer dissociation degree needs to be obtained by fine grinding.According to the results of process mineralogy,the mineral process of “discarding by dry magnetic separation, grinding,iron selection by low intensity magnetic separation,flotation for cobalt and sulfur” is recommended for the ores.

Key words: iron ore, process mineralogy, monomer dissociation, embedded features