Helical airfoil shaped aerating mixer blade with trailing...

Details Helical airfoil shaped aerating mixer blade with trailing... Helical airfoil shaped aerating mixer blade with trailing...

B - Operations, Transporting

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B01F 7/24 (2006.01) A01C 3/02 (2006.01) B01F 3/04 (2006.01) B01F 13/02 (2006.01) C02F 3/20 (2006.01) B01F 7/00 (2006.01)

Patent

CA 1083136

ABSTRACT OF THE DISCLOSURE The present invention provides a device for supplying gas to a liquid and revolving the liquid, especially manure, sewage containing bacteria, or the like, comprising a driven hollow shaft carrying a propeller means, provided with gas outlet openings, through which gas may be supplied to the liquid via the hollow shaft, the propeller means comprising at least one screw-shaped vane, characterized in that the screw-shaped vane at its lower edge widens to a chamber which is connected to the hollow shaft via a channel, and which forms, in tangential direction, an outlet opening.

310116

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