Process and system for the dehydration of residues

Details Process and system for the dehydration of residues Process and system for the dehydration of residues

1977-05-25

1979-03-06

Cuchlinski, Jr., William A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 86, 210386, 210400, B01D 3304, B01D 3700

Patent

active

041429710

ABSTRACT:
A system for the dehydration of residues such as sludge includes first and second endless filter belts which move at identical speeds in endless paths. A residue to be dehydrated is supplied between the two filter belts which pass together in alteration around a perforated drum and a plurality of rollers. Two of the rollers are positively driven at identical speeds but in opposite directions to thereby drive the two filter belts at identical speeds. Both filter belts are simultaneously and identically tensioned to control the pressure exerted by the filter belts on the residue during passage thereof around the drum and rollers. A supplemental pressing assembly presses the filter belts and residue against the perforated drum at a uniform pressure regardless of the thickness of the residue. The supplemental pressing assembly is simultaneously controlled by the same fluid source which controls the assemblies which tension both of the filter belts.

REFERENCES:
patent: 3446139 (1969-05-01), Coffelt
patent: 3601039 (1971-08-01), Schover
patent: 3743100 (1973-07-01), Bahr
patent: 3896030 (1975-07-01), Bahr
patent: 3984329 (1976-10-01), Wenzel et al.

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