Mechanical Inclusion Behavior of Non-magnetic Particles in High-Gradient Magnetic Separation
Mechanical inclusion of non-magnetic mineral particles is an important factor affecting the selectivity of high-gradient magnetic separation.Based on a self-designed high-gradient magnetic separation test device,the accumulations upstream and downstream of the magnetic medium were freeze-stripped and independently analyzed,and the effects of various key parameters on the mechanical inclusion behavior of non-magnetic particles were systematically studied.The results show that the capture selectivity of the magnetic media downstream is better than that of the upstream.Mechanical inclusion of non-magnetic minerals mainly occurs upstream of the medium.Increasing the feed flow rate and reducing the particle size of non-magnetic particles can improve the selectivity of high-gradient magnetic separation.The magnetic field strength has little impact on the mechanical inclusion of the upstream and downstream media.Under lower flow rate conditions,it is of great significance to weaken upstream trapping and strengthen downstream trapping,and two potential technical solutions to improve selectivity are proposed.
high gradient magnetic separationmechanical inclusionsupstream and downstream accumulationselectivity
NETL
NSTL
万方数据
维普
