Sludge dehydrating press and method for treating sludge

Details Sludge dehydrating press and method for treating sludge Sludge dehydrating press and method for treating sludge

1994-12-29

1997-07-01

Drodge, Joseph W.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

100 37, 100116, 210342, 210770, B01D 2102, B01D 3700

Patent

active

056434588

ABSTRACT:
A sludge dehydrating press device includes an outer screen case in which sludge to be treated is filled, the outer screen case having a screen surface in at least a part thereof, a press for pressing sludge filled in the outer screen case, one or more inner screen cases disposed slidably in the outer screen case including a screen surface extending in a direction crossing the direction of pressing by the press and having continuous slits and the inner screen cases having also a space into which water extracted from the sludge flows, and a positioning device for positioning the inner screen cases to a predetermined position after completion of pressing by the press. The screen surface of the outer screen case preferably is made of a wedge wire screen having a flat inside surface. The press device may further include an extracted water removing screen tube coaxially with the outer screen case.

REFERENCES:
patent: 838841 (1906-12-01), Carlson
patent: 1566496 (1925-12-01), Maus
patent: 1686095 (1928-10-01), Manning
patent: 4276265 (1981-06-01), Gillespie

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