According to the principle of action and the equipment used, re-election is divided into the following six types of operations: (1 ) Heavy medium dressing. Re-election must be carried out in the medium. The medium used is air, water, heavy liquid or resuspension. The most common one is water. When using air. Known as wind beneficiation, when it is used in heavy liquid or resuspension with a density greater than water, it is called heavy medium beneficiation. Heavy medium beneficiation is a method of sorting strictly according to mineral density. (2 ) Classification. When the broken material settles in air or water, the particles of different particle sizes and shapes have different sedimentation speeds due to the different resistance of the medium to be subjected to, and the separation can be separated according to the particle size. This re-election operation is called classification. (3 ) Washing. when The ore is cemented by clay and interferes with subsequent operations. It is washed by the action of water flow and mechanical force to separate the clay from the ore. ( 4 ) Jigging and dressing. The re-election process that uses the periodic vertical variable-speed medium flow to make the ore clusters loose, dense, and stratified by density is called jigging beneficiation. (5 ) Shaker beneficiation. The inertial force generated by the asymmetric reciprocating motion of the shaker surface and the flushing action of the water flow enable the granules located on the bed surface to be loosely layered and transported to separate the belts, thereby realizing the sorting operation. (6 ) Chute dressing. It is a method of dressing by means of a water flow flowing in a chute. Flotation machine: http://
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