基于ANSYS的高梯度磁选机磁场特性影响因素分析

利用ANSYS模拟了不同的磁介质排列组合方式下磁介质周围的磁场特征。结果表明:磁介质上下对齐排列与上下交替排列对磁场强度和磁场梯度基本没影响，但磁介质上下交替排列更有利于对磁性颗粒的捕集；一定程度增大磁介质充填率有利于改善分选效果，但磁介质充填率过高不仅阻碍矿浆的正常流动，而且会降低磁场强度和磁场梯度，影响磁性颗粒的捕集；采用横截面积更小、截面形状合适、饱和磁化强度更高的磁介质都有利于提高磁介质周围的磁场强度及磁场梯度。

Analysis of Factors Influencing Magnetic Field's Characteristics in HGMS Based on ANSYS

The magnetic field characteristics around the matrices under different ways of arrangement and combination were simulated by using ANSYS. The results showed that，it has no effect on the magnetic field strength and gradient whether the matrices are permutated aligned up and down or alternately up and down，but the latter is good for the capture of particles; Increasing the matrices filling rate in a certain extent is beneficial to improve the separation efficiency，but excessive increase of matrices filling rate will impede the flow of slurry and reduce the magnetic field strength and gradient，which is bad for the capture of magnetic particles; Using matrices of smaller cross-sectional area，suitable cross-section shape and choosing matrices of higher saturation magnetization are all good for improve the strength and gradient of the magnetic field around the matrices. High gradient magnetic separator,