选矿尾矿一直是困扰矿山企业的问题之一。本文对细级别选矿尾矿的再回收进行了研究。试验结果表明 ,新型螺旋液流预选机、离心重力分选机、离心振动分选机和磁流体离心振动分选机可以实现矿物混合物的分离。试验表明 ,高效的重选分离工艺是解决现代生产中主要问题的后备技术 Dressing tailings has been one of the problems plaguing mining companies. This paper studies the recovery of fine grade tailings. The experimental results show that the separation of mineral mixture can be achieved by the new spiral pre-separator, centrifugal gravimeter, centrifugal vibration separator and magnetic fluid centrifugal vibration separator. Experiments show that efficient reselection and separation process is the backup technology to solve the major problems in modern production