内蒙古某选厂铁精矿脱硫试验研究  

Experimental Study on Desulphurization of Iron Concentrate from a Concentrator in Inner Mongolia

作　　者：王丽明 白春霞 睢月婷 李宏静 刘涛 宋卓函 WANG Liming;BAI Chunxia;SUI Yueting;LI Hongjing;LIU Tao;SONG Zhuohan(Research Institute of Mining Baotou Steel Group(Limited Liability Company))

机构地区：[1]包钢集团矿山研究院(有限责任公司)

出　　处：《现代矿业》2023年第3期122-125,共4页Modern Mining

摘　　要：内蒙古某铁矿选厂生产的铁精矿含硫较高,硫矿物主要以磁黄铁矿形式存在,由于其嵌布粒度较细,通过选矿厂现有流程很难将其脱除。为有效降低该铁精矿中的硫含量,提高产品质量,以该选厂生产出的铁精矿为原料,通过工艺矿物学研究制定了磨矿—浮选工艺流程。试验结果表明:在最佳工艺条件下,可获得全铁品位67.70%、铁回收率94.97%、硫含量0.26%的铁精矿和硫品位28.85%、硫回收率88.69%的硫精矿,为该选厂铁精矿降硫提供了技术依据。The iron concentrate produced by an iron ore dressing plant in Inner Mongolia contains high sulfur,and the sulfur minerals mainly exist in the form of pyrrhotite.Because of its fine disseminated particle size,it is difficult to remove it through the existing process of the dressing plant.In order to effec⁃tively reduce the sulfur content in the iron concentrate and improve the quality of the product,the grinding flotation process was developed by studying the process mineralogy with the iron concentrate produced by the concentrator as the raw material.The test results show that under the optimum process conditions,iron concentrate with total iron grade of 67.70%,iron recovery of 94.97%and sulfur content of 0.26%and sulfur concentrate with sulfur grade of 28.85%and sulfur recovery of 88.69%can be obtained,which provides a technical basis for sulfur reduction of iron concentrate in the concentrator.

关 键 词：铁精矿 脱硫 浮选 

分 类 号：TD951[矿业工程—选矿]