Method and apparatus for reclaiming foundry sand

Details Method and apparatus for reclaiming foundry sand Method and apparatus for reclaiming foundry sand

1993-06-30

1995-07-18

Husar, John

Solid material comminution or disintegration

Processes

With classifying or separating of material

241 791, 241197, 241247, 241DIG10, B02C 1912

Patent

active

054333890

ABSTRACT:
A method and apparatus for reclaiming foundry sand wherein the speed of the rotor and/or the drum and, thus, the resulting striking, shearing and friction forces are adapted or matched to the changing surface hardness of the quartz grains to be processed during the process duration. The drum comprises two drum halves separated transversely to the rotational axis, a sand inlet and a suction removal device.

REFERENCES:
patent: 3756406 (1973-09-01), Khan
patent: 4004942 (1977-01-01), Richard
patent: 4274360 (1981-06-01), Hofmann et al.
patent: 4637558 (1987-01-01), Jenzsch et al.
patent: 4681267 (1987-07-01), Leidel et al.
patent: 4799920 (1989-01-01), Mozley
patent: 5172748 (1992-12-01), Satmer

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