APPARATUS FOR SEPARATION OF MIXES OF GRANULAR MATERIALS Russian patent published in 1995 - IPC

FIELD: ore concentration. SUBSTANCE: apparatus uses rotating cone-shaped bowl 1 with riffles 2 on the inner surface. Source material is fed through a loading device in the form of pipe 4 onto scattering disk 5. The latter is installed in bowl 1 in a spaced relation to its bottom. Rinsing water is fed through nozzles 3 to the depth of riffles during the whole cycle of accumulation. After the accumulation cycle the bowl rotary speed decreases and the heavy fraction is washed off with water through unloading device 7. The light fraction is unloaded during the accumulation cycle through the upper edge of bowl 1. EFFECT: enhanced capacity. 1 dwg, 1 tbl