Concrete reclamation system with mixing agitator

Details Concrete reclamation system with mixing agitator Concrete reclamation system with mixing agitator

1992-02-03

1993-12-07

Drodge, Joseph W.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

209 2, 209 18, 210141, 210194, 210208, 210258, 210738, 366 40, 366 43, 366136, 366196, B03D 300

Patent

active

052681114

ABSTRACT:
A separation and reclamation apparatus for separating a first discrete-phase solids material from a fluid mixture including, in addition, a second discrete-phase solids material and a continuous-phase carrier fluid, has a unitary vessel having a discharge tank connected to a receiving tank and in fluid communication therewith through an opening on the bottom side wall of the receiving tank. The receiving tank both mixes and transports the mixture. A controller actuates a door over the opening for transport of the first discrete-phase solids material out of the receiving tank into the discharge tank via a conveyor having an open discharge end higher than the top of the receiving tank. The apparatus includes a pump arranged to intake material from the discharge tank from contents remaining in the vessel after removal of the first discrete-phase solids. The invention defines methods for treating the fluid mixture to cause the first discrete-phase solids material to separate out of the mixture while maintaining constant mixing of the remainder mixture maintaining the second discrete-phase solids material in suspension. The invention is applied to reclamation of unused fluid ready-mix concrete, whereby sand and aggregate are recovered therefrom, and the remainder mixture of water, cement and sand fines is used in mixing fresh batches of concrete.

REFERENCES:
patent: 4548507 (1985-10-01), Mathis et al.
patent: 5149192 (1992-09-01), Hamm et al.

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