Abstract: A concrete mixing transport truck chute washout system with a container unit with an upper region located above and fluidly communicating with a lower region, the upper region having a container unit sealing and seating feature, the upper region having a container unit open mouth, and a rack unit that receives the container portion and which can have a stationary portion and a movable portion.

Abstract: In a coal preparation plant which receives a raw coal feed and separates the raw coal into clean coal and refuse, an apparatus is provided for use therein. The inventive apparatus is a combined sump common to the heavy media vessel and heavy media cyclone circuits used for recirculating medium storage for the heavy media vessel circuit and mixing device, referred to as a wing tank, to proportionally combine intermediate sized raw coal feed particles with a slurry of media and water for feeding the heavy media cyclone circuit. The advantage of this combined system is the ability to use a common recirculating media for use in both the heavy media vessel and heavy media cyclone circuits, without sacrificing the ability to have different recirculating gravities for each separating circuit.

Abstract: A portable, self-contained concrete reclaimer for use at construction sites to collect, break-down, and transport uncured waste concrete washed from concrete delivery equipment, to recycling facilities for use in the manufacture of fresh concrete. The concrete reclaimer comprises a screen having openings sized to separate aggregate from sand, cement and water when uncured waste concrete is washed thereon. The screen being sized to cover a portion of a water tight reclaiming tank having an open top, a closed wall, a bottom continuously sealed to the closed wall, and an upwardly extending partition disposed therein to divide the reclaiming tank into at least two separate, adjacently disposed compartments including a first receiving compartment adapted to receive and contain sand, cement and water, and an adjacent second receiving compartment adapted to receive and contain aggregate separated therefrom during the concrete washing and reclaiming procedure.

Abstract: A sifter has a casing that is detachably coupled with a screen unit that also has a casing. A sifter handle is configured for detachable coupling to a conventional electric knife drive.