Presses – Automatic or material triggered control – Of actuating means
Patent
1993-03-26
1995-02-07
Gerrity, Stephen F.
Presses
Automatic or material triggered control
Of actuating means
100116, 100118, 100152, B30B 1514, B30B 924
Patent
active
053867688
ABSTRACT:
An apparatus for dewatering sludge. The dewatering apparatus has a pressure plate device for compressing the sludge on a surface such that the sludge is dewatered. The dewatering apparatus also has a device for confining the sludge within a predetermined area on the surface as the pressure plate device compresses the sludge. The confining device is disposed adjacent to the pressure plate device. Preferably, the dewatering apparatus also has a device for transporting the sludge on a belt to the pressure plate device. The belt is preferably a porous belt filter cloth. For instance, the transporting device can have a first conveyor belt device and a second conveyor belt device having the belt. The first conveyor belt device transports partially dewatered sludge, or sludge cake, from a belt filter press to the second conveyor belt. The second conveyor belt device transports the sludge from the first conveyor belt device to the pressure plate device on the belt. Preferably, the pressure plate device has a first plate disposed on a first side of the belt and a second plate disposed in an opposing relationship with the first plate on a second side of the belt. Preferably, the second plate has a plurality of perforations through which water can drain. Preferably, a drain is disposed below the second plate for collecting water from the plurality of perforations.
REFERENCES:
patent: 772472 (1904-10-01), Neill
patent: 3230866 (1966-01-01), Branders et al.
patent: 3688686 (1972-09-01), Ligh
Gerrity Stephen F.
Roediger Pittsburgh, Inc.
Schwartz Ansel M.
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