Heating – With heating gas conveying – agitating – scattering or...
Patent
1976-09-02
1977-10-04
Camby, John J.
Heating
With heating gas conveying, agitating, scattering or...
34 57E, F27B 1500, F26B 1700
Patent
active
040521494
ABSTRACT:
A continuous calciner, particularly advantageous in converting gypsum to plaster, with two coaxial cylindrical walls, provides for heating air within the inner cylinder and then directing the air, for conveying and heating fine particles, along a spiral path, between the walls of the two coaxial cylinders, extending from one end of the calciner to an exit at the second end.
REFERENCES:
patent: 2647738 (1953-08-01), Trainer
patent: 2911730 (1959-11-01), Schaub et al.
Camby John J.
Hause Robert F.
National Gypsum Company
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