APPARATUS FOR MATERIAL BENEFICATION Russian patent published in 1996 - IPC

FIELD: mining and other branches of industry, mineral resources benefication, for example, at joints of transfer of mineral resources. SUBSTANCE: apparatus for material benefication has slantingly located grate screen on vibrating supports, vibrator with unbalanced masses located in clearances between grate bars and protruded over them and mounted on driving shaft located in bearing supports. Bearings supports bodies are fixed on next but last grate bars on both sides of grate screen and are made split. In the case their split parts are in pairs to each other by rigid links forming common skeleton to locate driving shaft. Unbalanced masses have separable mass protruding over grate bars and decreasing by value as departing drive made in the form of electrical motor mounted on vibrating support. EFFECT: increased quality of benefication. 2 cl, 4 dwg