Inventors:

 Mr. NGUYEN VAN CACH

Description:

The present invention relates to fluidization aeration mixing apparatus comprising a centrifugal ventilator (1), an air pipe (2) and an integrated unit of three centrifugal impellers. The integrated unit of three centrifugal impellers comprising three centrifugal impellers centrifugally operated independently with one another, integrated, coaxial and are spaced from each other by means of partition walls forming three centrifugal chambers consist of the upper chamber (4), the lower chamber (5) and the central chamber (3), the air pipe (2) having an end air-tight connected with the outlet of the centrifugal ventilator (1) and an another end air-tight connected with the suction inlet of the central centrifugal chamber (3) of the integrated unit of three centrifugal impellers, so that in the operating status of the fluidization aeration mixing apparatus, the air is, by means of the centrifugal ventilator (1), suctioned and then centrifugally pushed into the air pipe to enter into central centrifugal chamber (3), then centrifugally pushed out.
Technical Field.

The present invention relates to fluidization aeration mixing apparatus to aerate/disperse the air into water or into liquid medium. This fluidization aeration mixing apparatus can be used in aerobic fermentation, in wastewater treatment, treatment of polluted lake water or in aquaculture ponds, or can be used to mix/disperse between two gas and liquid phases (or between two phases flexible to one another) to improve the efficiency of the extraction of the substances to be exctracted from one phase to another.

Summary of the Invention

An objective of the present invention is to reduce the majority of the energy consumption to overcome the friction resistance and to compress the air up to the high pressure, which are two disadvantages in the use of the known above-mentioned compressors. Simultaneously, the present invention utilizes the ability to transport a large air volume of the centrifugal ventilator and allows to adjust the air volume aerated into the liquid medium, which are two characteristics that could not be obtained by the known in the prior art hollow shaft turbine mixer. 
In order to achieve this objective, the present invention provides a fluidization aeration mixing apparatus comprising a centrifugal ventilator, an air pipe and an integrated unit of three centrifugal impellers.

Source: National Office of Intellectual Property of Vietnam (NOIP).