Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1986-04-24
1987-11-03
Wyse, Tom
Liquid purification or separation
With means to add treating material
Directly applied to separator
210220, 261 84, 261124, 261DIG71, C02F 320
Patent
active
047042044
ABSTRACT:
In order to inject oxygen into a liquid, for example, sewage, the installation is provided with an aerating system (2) that is arranged in an aerating basin (1).
In order to improve the oxygen injection rate per kilowatt of driving force the aerating system (2) that is connected with a pump (3) in the manner of a water jet pump, the flow cross-section of which, in its air intake area, can be varied so as to change the oxygen injection rate. To this end, the diffusor stage (8) of the aeration system (2) extends along a conical surface. The hollow-configured conical diffusor inner portion (13) is arranged, together with a surface aeration impellor (16), on a common drive shaft (14), and can be moved along its longitudinal axis (15). The diffusor inner portion and the diffusor outer portion (13, 12, respectively) each have a plurality of air injection nozzles that are oriented towards the interior of the diffusor (8) so as to inject oxygen into the sewage that is accelerated and formed into vortices in the diffusor (8).
REFERENCES:
patent: 3965009 (1976-06-01), Kaelin
patent: 3979294 (1976-09-01), Kaelin
patent: 4021349 (1977-05-01), Kaelin
patent: 4235720 (1980-11-01), Nakajima et al.
patent: 4242289 (1980-12-01), Blum
patent: 4282172 (1981-08-01), McKnight
patent: 4305894 (1981-12-01), Lindblom
Schellin Eric P.
Wyse Tom
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