DEVICE FOR PRIMARY TREATMENT OF ROW MATERIALS OF CLAY BEARING SOIL Russian patent published in 1995 - IPC

FIELD: extraction of stones from clay bearing materials. SUBSTANCE: device for primary treatment of row materials of clay bearing soil has casing 1, hopper 2, fast roller 3 with longitudinal fins, slow roller 4 made in the form of a shell with ring turnings. Slow roller is installed in bearings on eccentric sleeves 6 connected to internal fast shaft 7. The device has also spring-loaded scrapers 8 being in touch with fast shaft 4, and spout 10 with internal longitudinal partitions 11, hollow spout 12. EFFECT: high quality of row materials. 3 dwg