Two major factors affecting the magnetic separation effect of magnetic separators?

Two major factors affecting the magnetic separation effect of magnetic separators?
1. An important factor affecting the magnetic separation effect of the magnetic separator is the feed particle size of the magnetic separation
For most ores, the size of feed particle size indicates the separation degree of ore monomer, that is, the separation degree of magnetic ore particles and gangue particles. If the particle size of the feed ore is small, it indicates that the mineral monomer separation is high, and satisfactory separation indicators can be obtained; If the particle size of the feed ore is relatively coarse, it indicates that the minerals are not fully dissociated and the monomer separation is not high. On the contrary, there are many connected bodies, that is, there is still a considerable part of the magnetic particles and gangue. As the intergrowth is also quite magnetic, a considerable part can be selected to reduce the concentrate grade. Therefore, it is required that the minerals fed into the magnetic separator must fully achieve monomer separation. For the ore with relatively coarse embedded particle size, as long as the mineral and gangue have reached the monomer separation, the particle size may not be too fine. Although the particle size of such ores is sometimes coarser, the separation quality is not low. The main reason is that the ore is embedded with coarse particle size, and the useful minerals and gangue are separated after grinding to a certain extent.
2. Pulp concentration is another important factor affecting the magnetic separation effect of the magnetic separator, mainly referring to the overflow concentration of the classifier.
If the concentration of pulp is too high, resulting in too high concentration of separation, it will seriously affect the quality of concentrate. At this time, the concentrate particles are easy to be covered by fine gangue particles and cannot be separated by wrapping, so they can be selected together to reduce the grade. If the pulp concentration is too small, the separation concentration will be too low, which will also cause the increase of flow rate and the shortening of separation pairs, so that some small magnetic particles that should have had the opportunity to come up will fall into the tailings to increase the tailings grade and cause losses. Therefore, the pulp concentration should be adjusted as required. The adjustment at the magnetic separator mainly depends on the size of the ore feeding blow off water, but the most important thing is that the grading overflow concentration must be completed according to the requirements of magnetic separation. The feed pulp concentration shall not exceed 35%, generally controlled at about 30%, and shall be determined according to the actual situation.