Two major factors affecting the magnetic separation effect of wet magnetic separator

1.One of the major factors affecting the magnetic separation effect of a Wet Magnetic Separator is the particle size of the feed ore fed into the magnetic separation

For most ores, the fineness of the feed particle size indicates the degree of separation of individual ore particles, that is, the degree of separation between magnetic ore particles and gangue particles. If the particle size of the fed ore is small, it indicates that the separation degree of mineral monomers is high and satisfactory separation indicators can be obtained. If the particle size of the fed ore is relatively coarse, it indicates that the mineral has not been fully dissociated, and the separation degree of individual particles is not high. On the contrary, there are many associated organisms, that is, a considerable part of the magnetic particles and gangue are still combined together. Due to the considerable magnetic property of the by-products, a considerable portion can be separated by the separation pair, which reduces the grade of the concentrate. Therefore, it is required that the minerals fed into the wet magnetic separator must fully achieve monomer separation. For coarse-grained ores, as long as the minerals and gangue have achieved individual separation, it is not necessary for the particle size to be overly fine. Such ores sometimes have a coarser particle size, but their separation quality is not low. The main reason for this is that the particle size of the ores is coarse, and when ground to a certain extent, the useful minerals and gangue are separated.

2. Pulp concentration is another important factor affecting the magnetic separation effect of wet magnetic separators, mainly referring to the size of the overflow concentration of the classifier.

If the pulp concentration is too high, resulting in an excessively high separation concentration, it will seriously affect the quality of the concentrate. At this time, the concentrate particles are prone to being covered and wrapped by finer gangue particles and cannot be separated. When they are picked up together, the grade will decrease. If the pulp concentration is too low, that is, the separation concentration is too low, it will cause the flow rate to increase and the separation interval to shorten. As a result, some fine magnetic particles that should have had the opportunity to come up will fall into the tailings, increasing the grade of the tailings and causing losses. Therefore, the pulp concentration should be adjusted as needed. The adjustment at the wet magnetic separator mainly relies on the size of the water blown away from the ore. However, the main point is that the concentration of the staged overflow must be completed according to the magnetic separation requirements. The concentration of the fed pulp should not exceed 35% at most, and is generally controlled at around 30%. The specific concentration should be determined based on the actual situation.