FIELD: enrichment by gravitation. SUBSTANCE: tray 1 with partitions 4 and 3 is mounted on support 2 by hinges. Partitions 3 are fastened in a spaced relation to bottom 1. Partitions 3 and 4 form compartments in which plates 6 are moved by drive 5. Before partitions 4, gadgets 7 are located for discharge of minerals. Under partitions 3, there are water inlet nozzles 8. EFFECT: higher efficiency. 2 cl, 3 dwg
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