Filter press for filtering suspensions, especially sewage sludge

Details Filter press for filtering suspensions, especially sewage sludge Filter press for filtering suspensions, especially sewage sludge

1997-03-18

1998-09-08

Savage, Matthew O.

Liquid purification or separation

Sectional chamber press type

With residue removal or liquid agitation

210229, 210409, B01D 2538

Patent

active

058040706

ABSTRACT:
A filter press for the filtration of suspensions has a frame, a support plate (1), a pressure plate (2) mounted in the frame and a set of vertically arranged filter plates (4) between the support plate (1) and the pressure plate (2). The filter plate (4) is provided with a single layer filter fabric (8) on the side that removes the liquid and collects the solids. The filter fabric runs over two filter cake removal rollers (6, 7) that are so positioned relative to each other and relative to the fabric (8) that an S-configuration is imposed on the filter fabric (8) as the rollers travel along the fabric. A pressure application device (5) presses the filter plates (4) together. A cleaning pipe (17) with spray nozzles (17A) for cleaning the filter fabric (8) is positioned between the cake removal rollers. The single layer fabric reduces the filtering resistance, thereby increasing the capacity of the filter press. The lower and upper edges of the filter fabric are secured to the respective edges of the filter plate. The cake removal rollers (6, 7) are moved up and down by a lifter (H).

REFERENCES:
patent: 3613563 (1971-10-01), Meshengisser et al.
patent: 4155830 (1979-05-01), Sukhobrosov et al.

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