Fluidized bed transport apparatus for coating small hardware ite

Details Fluidized bed transport apparatus for coating small hardware ite Fluidized bed transport apparatus for coating small hardware ite

1992-05-13

1994-04-05

Drodge, Joseph W.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 57A, 34 51, 118303, 118DIG5, 432 58, F26B 1700

Patent

active

052993663

ABSTRACT:
Transport apparatus for small sized hardware items includes a fluidized bed with a sloping gas permeable base (6) at the inlet end of the bed. Gas feed chambers (6a, 6b, 6c, 6d) are located on the lowerside of the base (6) and are sealed from one another in a gas tight manner. Powder columns (2a, 2b, 2c, 2d) of different heights extend upwardly above the base (6). Gas at different pressures is supplied through the gas feed chambers (6a, 6b, 6c, 6d) into the powder columns forming a uniform fluidized bed (2). The base slopes downwardly and has step-like transitions adjacent intersections of the chambers.

REFERENCES:
patent: 2563475 (1951-08-01), Mahoney
patent: 2995773 (1961-08-01), Gidlow et al.
patent: 3136531 (1964-06-01), Wesselingh
patent: 3394463 (1968-07-01), Futer
patent: 3691644 (1972-09-01), Schnitzer
patent: 3951099 (1976-04-01), Minckler
patent: 4237814 (1980-12-01), Ormos et al.

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