Method and apparatus for recycling sand

Details Method and apparatus for recycling sand Method and apparatus for recycling sand

1995-01-05

1997-04-08

Smith, James G.

Abrading

Machine

Scouring device

451111, 451 28, 2412781, 241DIG10, 164 5, B24B 3100

Patent

active

056182236

ABSTRACT:
An apparatus to remove adhering material from the surfaces of sand to recycle the sand is disclosed. The apparatus includes a container (13) to hold sand (S) to be processed, the container having a bottom opening; pressing means (17-20) to press the sand in the container downwards; a rotor (10) disposed under the bottom opening of the container (13), the rotor (10) having a surface (11) that contacts the sand in the container; means (2) for driving the rotor (10); and a gap (G) disposed near a place between the container and the rotor. The sand contacts and is abraded by the rotary surface (11 ) of the rotor (10), and the processed sand is discharged by the centrifugal force of the rotor (10) from the gap (G) onto a chute (21).

REFERENCES:
patent: 1050122 (1913-01-01), Gare
patent: 2620138 (1952-12-01), Vazieux et al.
patent: 2962234 (1960-11-01), Avila
patent: 3236743 (1966-02-01), Pierson
patent: 3401489 (1968-10-01), Wern
patent: 3982702 (1976-09-01), Barnhart et al.
patent: 4542857 (1985-09-01), Akasaka

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