Extended nip press

Details Extended nip press Extended nip press

1996-11-20

1999-02-02

Gerrity, Stephen F.

Presses

Concurrent pressing and conveying

Roll type

100153, 100176, 1623583, B30B 304, D21F 300

Patent

active

058651128

ABSTRACT:
An extended nip press for dewatering a pulp web has two press rolls that form an extended nip. The first press roll is retained in the axial direction at least at one end, and is held with its bearing pins on first bearing blocks. The second press roll is also held with its bearing pins on second bearing blocks. The second bearing blocks can be tensioned, each in pairs, with respect to the first bearing blocks by flexurally elastic tension elements, the tension elements allowing a relative displacement of the press rolls in the axial direction. The second bearing blocks are fixed in position with respect to the first bearing blocks in order to prevent excessive bending stress on the tension elements. For this purpose, either the rotary bearings of the second press roll are configured in non-tilting fashion, or additional support bearings are provided.

REFERENCES:
patent: 3921514 (1975-11-01), Biondetti
patent: 4272317 (1981-06-01), Roerig
patent: 5291826 (1994-03-01), Schiel
patent: 5305689 (1994-04-01), Schiel
patent: 5385088 (1995-01-01), Grabscheid
patent: 5395172 (1995-03-01), Grabshceid
patent: 5399242 (1995-03-01), Schiel
patent: 5400708 (1995-03-01), Meschenmoser
patent: 5404811 (1995-04-01), Schiel et al.
patent: 5413036 (1995-05-01), Schiel
patent: 5507223 (1996-04-01), Vallius
patent: 5538228 (1996-07-01), Schiel

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