混合磁选精矿物相分析  

Phase analysis of mixed magnetic concentrate

作　　者：苏兴国 马自飞 杨光 马艺闻 袁立宾 金磊 SU Xingguo;MA Zifei;YANG Guang;MA Yiwen;YUAN Libin;JIN Lei(Donganshan Sintering Plant,Anshan Iron and Steel Group,Anshan 114001,China;School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]鞍山钢铁集团有限公司东鞍山烧结厂,辽宁鞍山114001 [2]辽宁科技大学矿业工程学院,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2021年第3期222-226,共5页Journal of University of Science and Technology Liaoning

基　　金：辽宁科技大学校青年基金(2018QN01);辽宁省重点研发项目(2017230002)。

摘　　要：采用MLA自动矿物分析仪对某烧结厂混合磁选精矿进行矿物分析,旨在探索矿物性质对后续浮选过程的影响。分析结果表明,某烧结厂混合磁选精矿中,磁/赤铁矿质量分数为33.06%,脉石矿物石英含量最多,占29%,其次是绿泥石质量分数为5.89%,对浮选过程影响较大的菱铁矿含量很低,只有0.56%。混合磁选精矿矿物组成复杂,嵌布粒度细,且其中含有大量易于泥化的脉石矿物;磁/赤铁矿和石英的单体解离度均较低,会显著影响后续浮选效果和药剂制度。为探索赤铁矿石浮选过程的药剂制度优化提供依据。In order to explore the influence of mineral properties on the subsequent flotation process,A MLA(Mineral Liberation Analyser)was used to analyze minerals in a mixed magnetic concentrate from a sintering plant.The results show that the magnetic/hematite content is 33.06%,and the quartz content in gangue minerals is the highest,accounting for 29%,followed by chlorite,accounting for 5.89%.The siderite content,which has a great influence on flotation process,is very low,only 0.56%.The mixed magnetic concentrate contains complex mineral compositions with fine disseminated particle size,and a large number of gangue minerals which are easy to be slimed.The monomer dissociation degree of the magnetite/hematite and quartz is low,which will significantly affect the subsequent flotation effect and reagent dosage.This work provides a basis for the optimization of reagent dosage in hematite flotation process.

关 键 词：矿物分析 混合磁选精矿 物相分析 

分 类 号：TD951[矿业工程—选矿]