中南大学学报（自然科学版）2011，Vol.42Issue(9)：2537-2542,6.
斜环永磁高梯度磁选机的原理及应用
High-gradient permanent magnetic separator with inclined cylinder and its application
摘要
Abstract
The structure of a high-gradient permanent magnetic separator with inclined cylinder (HGPMSIC) was described, the load conditions and capture mechanism of mineral particles in a compound force field were analyzed, and magnetic separation effect of tailings containing iron by the HGPMSIC was tested. The inclination angle and rotational speed of separation cylinder, which was attached to the HGPMSIC, were adjustable. Magnetic particles were attracted by magnetic media in the inner bottom of the cylinder due to the presence of magnetic field and then washed down by pressured water after rotation into the inner top wall with nearly non-magnetic field. The mechanics analysis of mineral particles in the compound force field indicates that the lower limit of particle size (i.e. finest particle) recoverable by the HGPMSIC is controllable by adjusting the inclination of the separation cylinder. The test results of reclaiming iron minerals from a tailings containing iron by the HGPMSIC show that for a tailings with a content of 17.81% iron as feed, a magnetic concentrate with TFe grade of 29.53% and recovery of 65.05% are obtained after one time magnetic separation. The design of the magnetic separator is reasonable, and it operates well continuously through feeding, separating and discharge sub-processes.关键词
斜环/磁选/永磁高梯度磁选机/弱磁性矿物/尾矿利用Key words
inclined cylinder/ magnetic separation/ high-gradient permanent magnetic separator/ weekly magnetic minerals/ reclaiming tailings分类
矿业与冶金引用本文复制引用
伍喜庆,米夏夏,杨斌..斜环永磁高梯度磁选机的原理及应用[J].中南大学学报（自然科学版）,2011,42(9):2537-2542,6.基金项目
教育部留学回国人员基金资助项目(2005) （2005）
