Axial screw sludge pumping

Details Axial screw sludge pumping Axial screw sludge pumping

1973-08-27

1976-12-28

Krizmanich, George H.

Chemistry: physical processes

233 19R, 233 22, 233 46, 210369, 214 17DB, B04B 120

Patent

active

039997030

ABSTRACT:
This invention is concerned with axial conveying of sludge through a stationary tube from inside to outside a rotating centrifuge. It incorporates a high speed auger screw to move the material. High speed implies spinning of the auger too fast for sludge adhesion, and operating the auger only partially full. The feed to the auger is by an unrestrained jet of material from which any material not driven axially by the auger is permitted to fall freely away from the auger feed section. The combination of high rotational forces, open ballistic feed, and partially full screw, combine to assure transport of thixotropic materials.

REFERENCES:
patent: 407392 (1889-07-01), Barnes
patent: 980001 (1910-12-01), Ponten
patent: 3081027 (1963-03-01), Coulson
patent: 3247972 (1966-04-01), Woodall et al.
patent: 3451531 (1969-06-01), Barnes
patent: 3696950 (1972-10-01), Peters
patent: 3718220 (1973-02-01), Titus

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