Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles
Patent
1986-07-22
1987-06-23
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
Rotary drums or receptacles
34142, 414149, 414586, 432117, 432239, F26B 1104
Patent
active
046741984
ABSTRACT:
The apparatus comprises a drum (10) adapted to be driven in rotation about a horizontal axis of rotation (A) and having an at least approximately cylindrical body (12) as well as two steep end walls (14), one at each side of the body (12). The two end walls (14) each include a radially outer crown of ring sectors (20) which are inclined in overlapping relationship such that their leading edges (22) in the operating direction of rotation (26) of the drum (10) are disposed axially further outside than their trailing edges (24). A gap-like passage (28) each is formed between adjacent ring sectors (20). The material (58) being treated may exit through these passages upon rotation of the drum (10) in reverse sense. The ring sectors (20) are followed radially inwardly by a central portion (18,42) of the respective end wall (14) which portion the material (58) cannot penetrate. This makes sure that the material (58) will revolve without disturbance within the forwardly rotating drum (10).
REFERENCES:
patent: 3334868 (1967-08-01), Lage
patent: 3385724 (1968-05-01), Grun
patent: 3386182 (1968-06-01), Lippert
patent: 3411480 (1968-11-01), Grass, Jr. et al.
patent: 4002325 (1977-01-01), Herfeld
patent: 4037331 (1977-07-01), Brilloit
patent: 4050406 (1977-09-01), Reni
patent: 4168914 (1979-09-01), Larson et al.
patent: 4217851 (1980-08-01), Biehl et al.
patent: 4425865 (1984-01-01), Horner et al.
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