GRAVITATIONAL SLUICE FOR ENRICHMENT Russian patent published in 2021 - IPC B03B5/70 

FIELD: mining industry.

SUBSTANCE: proposed invention relates to the mining industry and the beneficiation of sands of alluvial mineral deposits and can be used in the development of gold sands. The sluice for sand enrichment contains a bottom with sides and catching sills in the form of transverse plates, a trommel located above the catching sills, made of longitudinal plates with gaps for the catching sills. On the unloading side, the sluice is equipped with a temporary tank with sides, a bottom and a lifting gate, which is connected through cables with a swivel bar installed above the temporary tank. On the bottom of the sluice, between the catch sills, there are rubber mats covered with mesh and rigidly connected to the bottom. In front of the catching sills, grooves are made on the loading side, and teeth are attached to each longitudinal trommel plate, the ends of which are buried in the grooves.

EFFECT: improving efficiency and quality of enrichment, as well as reducing energy consumption.

1 cl, 5 dwg