FIELD: enrichment of mineral resources. SUBSTANCE: chute may be used in enrichment of placer sands containing valuable high-density components. Chute narrowing in direction of hydraulic mixture motion is provided with discharge openings throughout the entire width of flat bottom made of two planes positioned one above another. Upper plane is rigidly connected to enriching chute sides, and lower plane is mounted for displacement and fixing in preset position by means of spacers placed in recesses of brackets connected rigidly to enriching chute sides. Chute is provided with a lifting device. Proposed enrichment chute makes it possible to adjust sizes of discharge openings depending on relation of densities of valuable components and country rocks by moving and fixing of bottom planes in preset position. EFFECT: higher efficiency of enrichment. 3 dwg
