Pressing arrangement for dehydrating fibrous material web e.g. paper web, in fibrous material web producing and/or conditioning machine, has pressing rollers whose winding angles are changeable during operation of pressing arrangement

摘要

The arrangement has pressing rollers (8, 9) forming a pressing gap through which a fibrous material web (1) runs. Upper and lower dehydrating belts (2, 3) are wound around guiding rollers (4, 5). Water collecting devices (6, 7) arranged after the pressing gap is attached to the pressing rollers. The pressing rollers are wound by the dehydrating belt after the pressing gap during operating condition, where winding angles of the pressing rollers are changeable during operation of the pressing arrangement.