Apparatus with heat exchange means and transfer pipe for treatin

Details Apparatus with heat exchange means and transfer pipe for treatin Apparatus with heat exchange means and transfer pipe for treatin

1983-08-08

1985-08-06

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

With temperature modification of material

241 69, 241DIG10, B02C 1912

Patent

active

045330875

ABSTRACT:
An apparatus (14) embodying heat exchange means for treating solid, granular and aggregate materials, and in particular for treating spent, i.e., used, chemically bonded foundry sand. The subject apparatus (14) includes a rotatable first chamber means (16) and a rotatable second chamber means (30). The used foundry sand is preheated while traveling from one end thereof to the other end thereof through the first and second chamber means (16, 30). From the second chamber means (30) the preheated used foundry sand is suitably conveyed to a thermal reclaimer means (12) for purposes of thermally removing organic matter therefrom. Thereafter, the used foundry sand is conveyed to a fluidizing chamber means (48) which is located in surrounding heat exchange relation to the first chamber means (16). As the used foundry sand flows in a second direction through the fluidizing chamber means (48), heat is exchanged between the foundry sand traveling through the fluidizing chamber means (48) and the foundry sand traveling through the first chamber means (16) such that the former loses heat, i.e., is being cooled, and the latter absorbs heat, i.e., is being preheated.

REFERENCES:
patent: 2881571 (1959-04-01), Granata
patent: 3243128 (1966-03-01), Tight
patent: 3785575 (1974-01-01), Langmaack et al.
patent: 4059232 (1977-11-01), Engels

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