A system for removing grit from a slurry, comprising:
- a containment vessel configured to receive the slurry proximate a first portion thereof and having an outlet proximate a second portion thereof, the containment vessel having at least one bottom surface extending from the first portion to the second portion and being downwardly inclined at an inclination angle with respect to horizontal such that a grit that settles from the slurry moves downwardly along the at least one bottom surface, the containment vessel having an open top portion proximate the first portion of the containment vessel, the open top portion leading to an interior region of the containment vessel;
- a catchment hopper assembly operatively positioned above the containment vessel, the catchment hopper assembly having a lower opening positioned proximate to the open top portion of the containment vessel, and an upper opening spaced apart from the lower opening, the catchment hopper assembly being further configured to convey an inflow stream of the slurry entering the upper opening through the catchment hopper assembly and out the lower opening into the open top portion of the containment vessel;
- a separation assembly operatively coupled to the containment vessel, the separation assembly including:
- a separation channel assembly operatively coupled to the at least one bottom surface and extending from the first portion to the second portion, the separation channel assembly being positioned to receive the grit that moves downwardly along the at least one bottom surface, and
- a separation conveyor at least partially disposed within the separation channel assembly and having a first longitudinal axis extending from the first portion to the second portion, the first longitudinal axis being downwardly sloping with respect to the horizontal from the first portion to the second portion, the separation conveyor being configured to convey the grit along the separation channel assembly toward the second portion of the containment vessel and out of an end of the separation channel assembly;
- and
- one or more separation ribs positioned within the containment vessel and oriented approximately transversely to the first longitudinal axis of the separation conveyor, the one or more separation ribs being configured to slow a velocity of the slurry as the slurry traverses from the first portion to the second portion to encourage the grit within the slurry to settle out of the slurry toward the separation channel assembly for conveyance by the separation conveyor along the separation channel assembly toward the second portion;
- and
- a removal assembly operatively coupled to the containment vessel and to the separation assembly, the removal assembly having a lower portion and an upper portion having a grit exit port, the removal assembly including:
- a removal conveyor having a second longitudinal axis extending from the lower portion to the upper portion, and a removal chute at least partially disposed about the removal conveyor, the removal chute being positioned to receive the grit that is conveyed by the separation conveyor out of the end of the separation channel assembly, the removal conveyor being configured to convey the grit received by the removal chute toward the upper portion of the removal assembly and out of the grit exit port.