Gas and liquid contact apparatus – Contact devices – Rotating
Patent
1983-01-07
1984-08-28
Chiesa, Richard L.
Gas and liquid contact apparatus
Contact devices
Rotating
210219, 239219, 261120, 366279, 415 7, 416 85, 416188, 416234, 417 61, B01F 304
Patent
active
044683588
ABSTRACT:
Apparatus for mixing air with liquid (aerator or oxygenator) comprises a motor or other power drive generally mounted in vertical position on a float or a fixed structure, the motor having a shaft extending downwards through an opening in the center area of the float or fixed structure and bearing on its lower part a propeller located in a cylindrical volute section just underneath the waterlevel. When the apparatus is operating, the waste-water is sucked by means of the propeller from the bottom of the body of liquid on which the apparatus is floating and pushed upwards in order to be diffused by means of a rotating diffusion head in the shape of a paddle-wheel. This feature increases efficiency of the installation, allowing the velocity of the fluid leaving the propeller to be kept as low as possible and the dimensions of intake volute and propeller to be increased.
REFERENCES:
patent: 2346366 (1944-04-01), Durdin
patent: 2465671 (1949-03-01), Van Millingen et al.
patent: 3416729 (1968-12-01), Ravitts et al.
patent: 3669422 (1972-06-01), Nogaj
patent: 3735926 (1973-05-01), Ravitts
patent: 3797809 (1974-03-01), Sydnor, Jr.
patent: 3865909 (1975-02-01), Cramer, Jr.
patent: 3871581 (1975-03-01), Dively
patent: 3911065 (1975-10-01), Martin et al.
patent: 4093401 (1978-06-01), Gravelle
patent: 4193951 (1980-03-01), Stanley
Peabody Welles, "Floating Aqua-Lator-Direct Drive Aeration", Copyright 1978.
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