Rotating filter apparatus for separating fine particles of solid

Details Rotating filter apparatus for separating fine particles of solid Rotating filter apparatus for separating fine particles of solid

1986-04-03

1987-10-06

Sever, Frank

Liquid purification or separation

Plural distinct separators

Filters

21033301, 2103601, 210373, 210412, B01D 3322

Patent

active

046981560

ABSTRACT:
A rotating filter apparatus is disclosed having a stack of sintered filter discs mounted on a vertical, rotatable hollow shaft and located within a chamber, the shaft having a plurality of radial openings therein to the hollow bore of the shaft. Unfiltered fluid is introduced under pressure to a tangential entry port in the same direction as disc rotation. The shaft is rotated at a speed sufficient to create a water boundry on the surface to aid the filtering of particles. The clean filtered fluid flows inwardly through the discs and down through the shaft, while the unfiltered fluid and the solid particles, or sludge materials, descend in the chamber to the bottom of a concentration chamber, which includes inwardly slanted sidewalls. The free-flowing sludge flows out of an outlet connection, with the more solid sludge taken out either through a hydrocyclone or a tapered auger connection. The clean fluid is taken out of a discharge chamber surrounding the bottom of the shaft, the bottom of the shaft being angularly slotted to create a suction on the shaft at this location. Cartridge seals provide mounting for the shaft and periodic back pulsing is provided to dislodge lodged particles from the discs.

REFERENCES:
patent: 3997447 (1976-12-01), Breton et al.

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