眼前山某矿石弱磁-强磁-反浮选试验研究  

Experimental Study on Low Intensity Magnetic Separation-High Intensity Magnetic Separation-Reverse Flotation of an Ore in Yanqianshan

作　　者：傅国辉 李志明[4] 刘显峰 董振海 祝昕冉 FU Guohui;LI Zhiming;LIU Xianfeng;DONG Zhenhai;ZHU Xinran(Ansteel Group Mining Co.,Ltd.,Anshan 114001,China;Ansteel Group Mining Co.,Ltd.Qianqianshan Branch,Anshan 114044,China;Ansteel Group Beijing Research Institute Co.,Ltd.,Beijing 102200,China;School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]鞍钢集团矿业有限公司,辽宁鞍山114001 [2]鞍钢集团矿业有限公司眼前山分公司,辽宁鞍山114044 [3]鞍钢集团北京研究院有限公司,北京102200 [4]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《矿业工程》2025年第1期21-25,共5页Mining Engineering

摘　　要：以眼前山某铁矿为样品开展选矿试验研究,以促进该地区铁矿石的高效开发与利用。根据矿石性质,采用了磨矿-弱磁-强磁-反浮选工艺。试验结果表明:铁品位为27.46%的原矿在预富集条件下,可以获得铁品位47.63%、铁回收率91.35%的混磁精矿;以混磁精矿作为浮选给矿,在一粗-一精-三扫浮选工艺,pH为10.5,淀粉用量为800 g/t,捕收剂用量为250 g/t,CaO用量700 g/t的条件下,最终获得精矿铁品位66.98%、铁回收率63.60%的选别指标。研究结果对于眼前山铁矿石的选矿实践具有指导意义。Mineral processing experiments are conducted on a certain iron ore in Yanqianshan to promote the efficient development and utilization of iron ore in the region.According to the properties of the ore,the process of grinding-low intensity magnetic separation-high intensity magnetic separation-reverse flotation is adopted.The experimental results show that the run of mine with an iron grade of 27.46% can obtain a mixed magnetic concentrate with an iron grade of 47.63% and an iron recovery rate of 91.35% under pre-enrichment conditions;With mixed magnetic concentrate as flotation feed,under the conditions of one roughing-one cleaning-three scavenging flotation process,pH of 10.5,starch dosage of 800 g/t,collector dosage of 250 g/t,and CaO dosage of 700 g/t,the final beneficiation indexes of 66.98% iron grade and 6.60% iron recovery rate of concentrate is obtained.The research results have guiding significance for the beneficiation practice of Yanqianshan iron ore.

关 键 词：眼前山 磁/赤铁矿 反浮选 MLA 铁精矿 

分 类 号：TD923[矿业工程—选矿]