The CTB type wet semi countercurrent magnetic separator is suitable for scanning and selecting strong magnetic materials with a particle size of less than 0.5mm in wet separation, especially for selecting minerals with a particle size of 0.15-0mm. Alternatively, remove strong magnetic minerals mixed in non magnetic minerals. The CTB type wet semi countercurrent magnetic separator can obtain high-quality iron concentrate and also achieve good recovery rate, so the semi countercurrent magnetic separator is widely used in production practice. This machine can continuously feed and discharge ore, with high magnetic field intensity and gradient, and high processing capacity. Multiple machines can be connected in series or parallel to achieve multiple scanning and selection.

The principle is that when the slurry enters the magnetic field area, strong magnetic minerals are adsorbed on the surface of the cylinder, weak magnetic and non magnetic minerals are washed out by water flow, and the magnetic minerals adsorbed on the surface of the cylinder rotate with the cylinder and are carried out of the magnetic field area. The washing water is used to flush into the concentrate tank to complete the sorting operation.