Dry magnetic separator working principle 1
A strong magnetic field is generated inside the magnetic separator through a permanent magnet or electromagnet. When the mixed material containing magnetic minerals and non-magnetic minerals enters the magnetic field area of the magnetic separator, the magnetic minerals are attracted by the magnetic force, move along the magnetic field direction, and are collected by the magnetic roller or magnetic plate of the magnetic separator, while the non-magnetic minerals are not affected by the magnetic force, continue to move along the original direction of movement, and discharge from the magnetic field area.
Taking the wet permanent magnet drum magnetic separator as an example, after the slurry flows into the tank through the feed box, the ore particles enter the tank in a loose state under the action of the water flow of the feed pipe. Under the action of the magnetic field, the magnetic particles occur and form a “magnetic group” or “magnetic chain”, and move towards the magnetic pole, and are adsorbed on the cylinder. Because the polarity of the magnetic poles is alternately arranged along the rotation direction of the cylinder, the “magnetic group” or “magnetic chain” will produce magnetic agitation when rotating with the cylinder, and the non-magnetic minerals such as gangue that are included in it will fall off during the flip. In the end, the “magnetic group” or “magnetic chain” that is sucked on the surface of the cylinder is the concentrate, the concentrate is transferred to the magnetic edge of the magnetic system with the weakest magnetic force, and is unloaded into the concentrate tank under the rinsing water flow of the discharge pipe, and the non-magnetic or weakly magnetic minerals are left in the slurry with the slurry discharged outside the tank and become the tailings.
Category 1
