Slurry thickening tank and absorption tower for use in wet flue

Details Slurry thickening tank and absorption tower for use in wet flue Slurry thickening tank and absorption tower for use in wet flue

1996-04-12

1998-06-23

Bhat, Nina

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422177, 422219, 55228, B01D 5000, B01J 808

Patent

active

057701660

ABSTRACT:
The present invention relates to a slurry thickening tank comprising a tank body disposed below the surface of a slurry within a slurry tank, a slurry inlet provided in the upper part of the tank body, a thickened slurry outlet provided in the lower part of the tank body, and supernatant liquid withdrawal means provided in the upper part of the tank body, whereby the slurry introduced into the tank body through the slurry inlet is thickened by sedimentation in the tank body and the resulting thickened slurry is discharged from the tank body through the slurry outlet, wherein the surface of the structural member of the tank body extending from the slurry inlet to the thickened slurry outlet has an angle of inclination greater than the angle of repose for the thickened slurry, and to an absorption tower for use in flue gas desulfurization systems which is equipped with such a slurry thickening tank. This slurry thickening tank can maintain satisfactory operating conditions for a long period of time without developing any trouble such as a blockage of the thickened slurry outlet.

REFERENCES:
patent: 3852040 (1974-12-01), Gustavsson
patent: 4120791 (1978-10-01), Wright
patent: 4273658 (1981-06-01), Karman
patent: 5034028 (1991-07-01), Ukawa et al.
patent: 5132027 (1992-07-01), Ukawa et al.
patent: 5266286 (1993-11-01), Ukawa et al.
patent: 5340547 (1994-08-01), Moser et al.
patent: 5486341 (1996-01-01), Bresowar
patent: 5558848 (1996-09-01), Moser et al.
patent: 5605552 (1997-02-01), Shimizu et al.

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