| 摘要 |
<p>The invention concerns a press section of a paper machine, through which press section the paper web (W) is passed as a closed draw on support of a press fabric (11, 28, 36) and of a smooth roll face (31, 39'). The first nip in the press section is an extended-nip press (NP1) through whose press zone two opposite press fabrics (11, 28) that receive water have been passed. The upper press fabric in the extended-nip press (NP1) is a pick-up fabric (11), which carries the paper web (W) from the forming wire (10). In the press section, there are at least two other nips (N1, N2; NP2', NP3') that have been formed in connection with the smooth-faced (31) centre roll (30). The centre roll (30) is fitted at a level higher (H1) than the level of the extended-nip press (NP1). In the first one of the other nips (N1; NP2'), the press fabric consists of the pick-up fabric (11), and the second other nip (N2; NP3') has a press fabric (33) of its own that receives water. The upper press component of the extended-nip press (NP1) is a suction roll (13b) provided with a mantle (13'') with through perforations. After the extended-nip press (NP1), the running direction of the paper web (W) has been turned at an angle a, which has been chosen as a ≥ SIMILAR 45<0>. <IMAGE></p> |
