Agitator and baffles for slurry mixing

Details Agitator and baffles for slurry mixing Agitator and baffles for slurry mixing

1989-04-18

1990-08-21

Jenkins, Robert W.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366307, B01F 722

Patent

active

049512625

ABSTRACT:
An apparatus for mixing a fluid includes a mixing tub having a substantially circular horizontal cross-sectional shape, and an agitator assembly associated with the mixing tub. The agitator assembly includes a drive shaft having upper and lower agitators attached thereto. The drive shaft is located within the tub and has a substantially vertically oriented axis of rotation. The lower agitator moves fluid generally downward through a radially inner cross-sectional area defined within a first radius swept by the lower agitator. The upper agitator moves fluid within the first radius generally radially outward as that fluid is moved generally downward by the lower agitator, and moves fluid outside the first radius generally upward. A plurality of foraminous baffles are mounted within the tub for reducing rotational motion of the slurry within the tub about the generally vertical axis of the agitator shaft.

REFERENCES:
patent: 1032663 (1912-07-01), Fay
patent: 1428315 (1922-09-01), Bartlett
patent: 2893846 (1959-07-01), Wistrich et al.
patent: 2912310 (1959-11-01), Walley et al.
patent: 3365176 (1968-01-01), Christensen
patent: 4136972 (1979-01-01), Doom
patent: 4747696 (1988-05-01), McCrory
patent: 4838704 (1989-06-01), Carver
Exhibit A-several pages from a brochure for Galigher double suction vertical sump pumps 3/28/89.
Exhibit B-Booklet entitled "Liquid Agitation" prepared by Chemineer.Kenics, Houston, Texas 12/75.

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