摘要
介绍旋流高梯度磁选机的基本结构,使用Fluent有限体积和ANSYS有限元分析软件分别对设备的流体力场、磁力场进行仿真分析,并对磁性和非磁颗粒的受力进行计算,预测该设备对某黑钨矿的分选效果。该磁选机磁系为电磁磁系,在有利于物料分散的离心力场中进行高梯度磁选是设备的主要特征。分选指标的预测结果表明:当原矿WO3品位为0.4%时,在低离心场强下,一次分选可得到品位大于20%,回收率大于50%的钨精矿;在高离心场强下,一次分选可得到回收率大于95%,品位大于1%的钨精矿。
The structure of high-gradient magnetic separator with the rotational flow field （HGMSRF） was described, the HGMSRF＇s flow field and magnetic field were simulated by Fluent and ANSYS software, the forces on magnetic and non-magnetic particles were calculated, and magnetic separation of wolframite ore by HGMSRF was predicted. Electromagnetic system and high-gradient magnetic separation in centrifugal flow field are two important characteristics. The predictive results of reclaiming WO3 from wolframite ore by HGMSRF show that for a wolframite ore with a content of 0.4% WO3 as feed, a magnetic concentrate with WO3 grade of over 20% and recovery of over 50% are obtained by one time magnetic separation in week centrifugal force field, and a magnetic concentrate with WO3 grade of over 1% and recovery of over 90% are obtained by one time magnetic separation in strong centrifugal force field.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第1期1-8,共8页
Journal of Central South University:Science and Technology
基金
国家"十二五"科技支撑项目(2012BAB10B05)
关键词
磁选机
离心力场
磁力场
仿真
预测
magnetic separator
centrifugal force field
magnetic field
simulation
prediction
