A PRESS APPARATUS

摘要

A press apparatus (10) is disclosed for pressing water from the formed web (W). The apparatus includes a press frame and a center roll (12) rotatably supported by the frame. An upstream roll (14) cooperates with the center roll (12) for defining therebetween a roll nip (N1) for the passage therethrough of the web. The arrangement is such that a first portion of water is removed from the web when the web extends through the roll nip (N1). A first extended nip press shoe (16) is disposed downstream relative to the roll nip. The first shoe (16) defines a first concave surface which cooperates with the center roll (12) for defining therebetween a first extended nip (N2) for the passage therethrough of the pressed web. The arrangement is such that a second portion of water is removed from the web when the pressed web extends through the first extended nip (N2). A second extended nip press shoe (20) is disposed downstream relative to the first shoe (16). The second shoe (20) defines a second concave surface which cooperates with the center roll (12) for defining therebetween a second extended nip (N3) for the passage therethrough of the pressed web. The arrangement is such that a third portion of water is removed from the web when the pressed web extends through the second extended nip (N3).