Abstract: A mining sluice box having a louver processing zone comprising a plurality of louvers positioned perpendicular to the incline slope, with the pitch angle of the louvers being variable so as to permit adjustment of the intensity of a vortex flow between the plurality of louvers by adjusting the pitch angle of the plurality of louvers.

Abstract: A mining sluice box having a louver processing zone comprising a plurality of louvers positioned perpendicular to the incline slope, with the pitch angle of the louvers being variable so as to permit adjustment of the intensity of a vortex flow between the plurality of louvers by adjusting the pitch angle of the plurality of louvers.

Abstract: a mining dredge lift station having an elevatable hopper, wherein the hopper has an air opening and a dredge inlet, and where the hopper is in material communication with a tapered feed, to direct a material flow into a lift feed, wherein the lift feed connected in material communication to the tapered feed. The lift feed is curved from a lift feed opening with a generally downward orientation to a lift feed accelerated outlet with a generally upward direction of flow. A high-pressure hose attachment is connected to the lift feed at the outer radius of the curve, to orient a line-of-flow upward in the direction of the desired elevation for the mining material.