Apparatus for reclaiming foundry sand

Details Apparatus for reclaiming foundry sand Apparatus for reclaiming foundry sand

1982-02-05

1985-04-02

Godici, Nicholas P.

Solid material comminution or disintegration

Apparatus

With temperature modification of material

164 5, 164412, 241DIG10, B02C 1912, B22C 518

Patent

active

045082774

ABSTRACT:
Used foundry sand is passed downward through a series of vertical, fluid sand beds. Hot air is forced upward in countercurrent fashion through the beds in turn so that a boiling action is achieved in the sand masses. The combination of thermal and abrasive action removes both organic resin and clay-bonded materials from the sand in one continuous operation.

REFERENCES:
patent: 2433738 (1947-12-01), Christensen
patent: 2456769 (1948-12-01), Christensen et al.
patent: 2478461 (1949-08-01), Connolly
patent: 4144088 (1979-03-01), Adams

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