Gas and liquid contact apparatus – Contact devices – Rotating
Patent
1977-07-26
1979-02-20
Chiesa, Richard L.
Gas and liquid contact apparatus
Contact devices
Rotating
209169, 210219, 210221M, 210242A, 261 36R, 261120, B01F 304
Patent
active
041407377
ABSTRACT:
Disclosed is an aeration device for aerating liquids having a foam-forming tendency. The amount of foam generated by such an aeration device is controlled by having the air inlet disposed at a predetermined foam level. The liquid inlet is disposed near the surface of the liquid to be aerated, such that solid particles floating thereon are taken into the aerator. Air and liquid are combined in the aeration device producing the desired foam. The foam level is prevented from exceeding the level of the air intake due to the fact that air is required to produce the foam, and if the foam level exceeded the air intake, it would be ingested into the pump reducing the amount of foam produced thereby. Particular embodiments disclose concentric foam and liquid intakes to a submersible aeration pump.
REFERENCES:
patent: 2240671 (1941-05-01), Sborlino
patent: 2265758 (1941-12-01), Klosson
patent: 2406532 (1946-08-01), Fahrenwald
patent: 2892543 (1959-06-01), Daman
patent: 2928665 (1960-03-01), Epprecht
patent: 3573203 (1971-03-01), Kaelin
patent: 3794303 (1974-02-01), Hirshon
patent: 3846516 (1974-11-01), Carlson
patent: 3936381 (1976-02-01), Pacaud
Bucher-Guyer AG Maschinenfabrik
Chiesa Richard L.
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