FIELD: technological processes.
SUBSTANCE: separating device which separates material based on solid particles by density during the grinding or crushing process, comprises: a housing, an inlet for solid particles, intended to supply the material based on solid particles to the housing, at least one sieve for size classification in the inlet, at least one inlet for fluid medium, inteded to supply the fluid medium to the lower part of the housing so that the fluid medium forms a fluidized bed together with the material based on solid particles, and at least one distribution sieve for fluid medium, intended for uniform distribution of fluid medium across the fluidized bed, the first outlet, intended to release the material based on soild particles with the first given density from the lower part of the housing and the second outlet, intended to release the material based on soild particles with the second given density from the upper part of the housing, wherein the second given density is less than the first given density. The separating deivce is used for carrying out the method of material separation comprising supply of material based on solid particles with a substantially uniform particle size through the inlet for solid particles into the housing of the separating deivce; passing of the material through at least one sieve for size classification; supply of the fluid medium to the lower part of the housing through the inlet for the housing fluid medium so that the fluid medium formes a fluidized bed together with the material based on soild particles; release of the material with the first given density from the lower part of the housing through the first housing outlet and release of the material with the second given density from the upper part of the housing through the second outlet. The second given density is less than the first given density.
EFFECT: higher separation efficiency.
14 cl, 11 dwg
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