微细粒赤铁矿磁复合絮凝行为研究  

Study on Magnetic Composite Flocculation Behavior of Fine-grained Hematite

作　　者：周文波[1,2] 李艾强 李青青 陈庭康 齐放 Zhou Wenbo;Li Aiqiang;Li Qingqing;Chen Tingkang;Qi Fang(College of Resources and Environmental Engineeririg,Wuhan University of Science and Technology,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources,Wtthan University of Science and Technology,Wuhan,Hubei,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan,Hubei,China)

机构地区：[1]武汉科技大学资源与环境工程学院,武汉科技大学冶金矿产资源高效利用与造块湖北省重点实验室,武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北武汉430081 [2]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《矿产综合利用》2018年第6期48-52,18,共6页Multipurpose Utilization of Mineral Resources

基　　金：省部共建耐火材料与冶金国家重点实验室青年基金项目(2018QN19);冶金矿产资源高效利用与造块湖北省重点实验室开放基金项目(MREU201607);钢铁冶金及资源利用省部共建教育部重点实验室开放基金项目(FMRU201001).

摘　　要：以赤铁矿纯矿物作为研究对象,通过沉降试验来考察磁场和絮凝剂联合作用对赤铁矿絮凝沉降行为的影响。结果表明:通过磁场和絮凝剂的联合作用,沉降效果明显优于单一的高分子絮凝和磁絮凝。对复合体系中赤铁矿颗粒间总作用势能进行计算,计算结果表明磁场和絮凝剂的联合作用降低了复合体系中的势能垒,利于赤铁矿颗粒间的聚团。The effect of the combined action of magnetic field and flocculant on the flocculation and settling behavior of hematite was investigated by the sedimentation test.The results show that the combined effect of magnetic field and flocculant is better than single ploymer flocculation and magnetic flocculation.The total potential energy of hematite particles in the composite system was calculated,and the results show that the combined action of the magnetic field and the flocculant reduces the potential barrier in the composite system and benefits the agglomeration between hematite particles.

关 键 词：赤铁矿 磁复合絮凝 DLVO 沉降试验 

分 类 号：TD951[矿业工程—选矿]