| 摘要 |
A sluice comprising a series of sequential, interconnected chutes, each inverting a stratified slurry, discharges the slurry in each chute over a mesh screen in a subsequent chute and eventually out of the sluice, with each incremental stage designed to treat smaller matter. An array of cones is disposed on each chute bottom over which the slurry passes, each cone in the array having an opening oriented downwater and including a ridge over-hanging its opening also oriented downwater, such that heavy matter settling from the mineral matrix is drawn into the cone. Below the cone array is a perforated mat. Also below the array, beginning at the minor's moss mat and extending downwater, is a textured mat, typically with upstanding ribs transverse to the chute water flow that also tends to capture settling material. Below the miner's moss is provided a plurality of fluid nozzles, typically air holes in a network of tubes connected to an outside air compressor for lifting settled ore upward with ore of high specific gravity falling back and past the air nozzles, lighter gangue once again being returned to suspension in the slurry.
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