Process and apparatus for simultaneous material granulation and

Details Process and apparatus for simultaneous material granulation and Process and apparatus for simultaneous material granulation and

1984-03-09

1986-01-14

Bernstein, Hiram H.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including means rotating reaction chamber during use

432112, 34137, B01J 810

Patent

active

045645051

ABSTRACT:
A process and apparatus for simultaneous feedstock material granulation and classification are provided which utilize applied heat to cause feedstock material to agglomerate, forming a uniformly sized granular product. The feedstock is fed onto a tilted rotating granulator-classifier, forming a moving bed of feedstock. Hot streams of combustion products or other heated gases are applied to a portion of the granulator-classifier and heat is thus percolated through the moving bed of feedstock. The feedstock is heated to a point wherein it begins to soften, or sinter. As the heated particles cascade downward over the granulator-classifier, the smaller particles adhere to the larger particles forming hardened, uniform granules which spill out of the granulator-classifier when they reach a desired size. The granulator-classifier may be provided with annular tiers which cause an increased efficiency in the uniform sizing of the granules as well as the agglomeration process. In an optional energy saving embodiment of the invention, waste heat from the granular product is recycled to preheat the feedstock.

REFERENCES:
patent: 2830386 (1958-04-01), Magnusson
patent: 2860598 (1958-11-01), Loesche
patent: 3030657 (1962-04-01), Von Reppert
patent: 3097833 (1963-07-01), Harris et al.
patent: 3335456 (1967-08-01), Teruo Oya et al.
patent: 3345683 (1967-10-01), Eirich et al.
patent: 3408169 (1968-10-01), Thompson et al.
patent: 3805406 (1974-04-01), Castonoli

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