Magnetic Field Characteristics of Wet Belt Permanent High Gradient Magnetic Separator and Its Full-Scale Purification for Garnet Ore

Purification of non-metallic ores has received considerable attention in the recent decade. In this investigation, the magnetic field characteristics of the innovative plate-type permanent magnet in wet belt permanent high gradient magnetic separator (WBHGMS) were analyzed; then, its full-scale purification of a garnet ore was introduced, and its performance dependences on the key operational parameters, i.e., magnet length, belt rotation speed, and feed particle size, were respectively examined. The separator produced a high-quality non-magnetic product assaying 2.00% Fe at an iron removal rate of 95.00% from the ore assaying 13.10% Fe. It was thus concluded that this WBHGMS separator has provided a promising method for the purification of non-metallic ores.