The effect of wet iron removal is better than that of dry iron removal, because the material used for the magnetic separator is mainly powder, and the minerals mined in general mines are integral. Impurities are encapsulated in the minerals, and the loss is extremely large if the magnetic separation is carried out directly. Therefore, the crushing of minerals is worthy of attention. As we all know, the factors that affect the quality of the magnetic separator are generally the strength of the magnetic separation, the mesh number of the material, and the degree of iron impurity encapsulation. Minerals with a certain mesh number are generally better soluble in water than dry separation because the separation of iron impurities is good, so the wet magnetic separator is more effective.
What determines the mesh size of the material is the crushing ball mill. Dissociation, crushing and grinding large pieces of ore so that various useful mineral particles are dissociated from the ore; sorting is to separate the dissociated mineral particles into different products according to their physical and chemical properties. . Since the vast majority of useful minerals in nature are closely symbiotic with gangue, and are often embedded in fine grains, if various minerals or components are not separated from each other first, even if their properties are very different, Sorting is also not possible. Therefore, fully dissociating useful minerals and gangue is a prerequisite for any sorting method, and the purpose of crushing and grinding is to fully dissociate useful minerals and gangue that are closely connected in the ore. The crushing process is the process of gradually reducing the size of the ore nuggets. It is in the process of particle size reduction that the dissociation of various useful mineral particles occurs. If the particle size of the crushed product is not fine enough, the useful minerals and gangue are not sufficiently dissociated, and the sorting effect is not good; if the particle size of the crushed product is too fine, there will be too many over-broken particles, although the various useful minerals are very dissociated. Completely, but the sorting indicators are not necessarily very good.
During wet iron removal, the inlet temperature of the slurry should be reduced as much as possible. Generally, the slurry should be cooled before entering the machine, and the temperature of the slurry should be below 70 °C. Before entering the machine, it should be sieved to ensure the particle size of the slurry particles, so as not to block the iron removal equipment. Reducing the competitiveness, reducing the slurry feeding speed, and reducing the slurry viscosity and concentration can all improve the iron removal effect.
