Air classifier is mainly used for non-metallic ore sorting, separation of the gangue portion such as asbestos, mica and the like.
Wind classification is mainly used for: dry closed-circuit grinding, grading of fine particles before dry sorting, dry dust collection, and the like.
Due to the low density of air media, the efficiency of sorting is not high. Suitable inclusion particle size is generally
1.5 ~
0.005mm Individual fiber-like, sheet-like particle size can be larger, such as mica maximum particle size can be
3mm . The moisture content in the material has a serious impact on the sorting efficiency. The more dry the material is, the more favorable it is for sorting. Therefore, the dust is large and pollutes the environment. There must be a complicated dust collecting system in the production. However, wind beneficiation has the advantage that the product does not have to be dehydrated, and the process of dehydrating and drying the fine granular or flake product can be omitted. In addition, for severely water-deficient areas, wind beneficiation shows its superiority.
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