METHOD OF SEPARATION OF SOLID MATERIALS BY FINENESS Russian patent published in 2018 - IPC B07B13/00 B07B4/06 

FIELD: technological processes.

SUBSTANCE: invention relates to methods of separating, enriching, classifying non-metallic and ore materials, in particular to methods of separating solid materials by fineness. Method of separating solid materials by fineness involves stratifying the material, introducing it into the separation zone, directing the material to the air stream, separating it by airflow in fineness, feeding selected fractions to the side of the drum, separating the drum and separating the fractions. Air flow directed to the material is preliminarily twisted into an intensive vortex motion, forming a layer of stable vortices attached to the zone of stratification of the material. To increase the time of the material's withering, the air flow directed to the material is twisted in a vortex motion in the direction of rotation of the drum.

EFFECT: improving the quality of separation of solid materials by fineness.

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