CLASSIFIER OF LOOSE MATERIALS Russian patent published in 1998 - IPC

FIELD: cleaning and separation of grain and products of its processing. SUBSTANCE: classifier includes zigzag sieves with wedge-shaped openings expanding in direction of movement of products arranged one under another and at different angles with horizontal line. Deflectors controlled by proper mechanism are positioned under them. Classifier is also fitted with unit of sieving surfaces placed in sequence and mounted at angle with horizontal line in front of upper sieve of zigzag section. Tray and immobile deflector which installation angles with horizontal line are larger than angle of setting on unit are situated under unit. Final width of wedge-shaped openings of sieving surfaces in unit is less than final width of wedge-shaped openings of sieves of zigzag section. EFFECT: reduced usage of metal for manufacture of classifier, enhanced separation efficiency. 1 dwg