Dewatering press for compressibly dewaterable material

Details Dewatering press for compressibly dewaterable material Dewatering press for compressibly dewaterable material

1993-04-09

1995-04-18

Gerrity, Stephen F.

Presses

With drain means for expressed liquid

Drainage through or along surface spanning pressure surfaces

100117, 100148, 100149, B30B 918

Patent

active

054068835

ABSTRACT:
A process is proposed for the dewatering of compressibly dewaterable materials, in particular waste from the processing of paper material, which enables a very high degree of dewatering so that the waste can be readily disposed of, e.g. dumped. For this purpose, the material to be dewatered is initially pre-dewatered by gravity, and usually also by compression, in a transportation section (5). This pre-dewatering can take place in a continually operating feed section (7) through a perforated sieve jacket (10). The material then reaches a press section (6) in which a discontinuously working pressing device is in operation. Further improvements in the dewatering performance are possible by various embodiments of the corresponding pressing elements (13,14). The invention relates to both the process and the device for implemention of the process.

REFERENCES:
patent: 2260865 (1941-10-01), Peterson
patent: 2615387 (1952-10-01), Messing
patent: 3073239 (1963-01-01), Cowan et al.
patent: 3121387 (1964-02-01), Fuhrwerk et al.
patent: 3550526 (1970-12-01), Hoover
patent: 3715977 (1973-02-01), Mackenzie
patent: 3789752 (1974-02-01), Wirz
patent: 4016988 (1977-04-01), Dahlin
patent: 4044569 (1977-08-01), Harza
patent: 4165283 (1979-08-01), Weber et al.
patent: 4256035 (1981-03-01), Neufeldt

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