Patent ID: 7189309
Filing Date: 2007-03-13
Classification: D21F,Y10S

Abstract:
1. A press arrangement for dewatering a pulp web in a machine for at least one of production and finishing of a pulp web, comprising: at least one press nip formed by a lower press roll and an upper press roll arranged approximately above and pressed against said lower press roll; at least one dewatering belt adapted to run above the pulp web through said at least one press nip, and to receive water expressed from the pulp web; a water receiving device positioned between said upper press roll and said at least one dewatering belt, said water receiving device comprising at least one suction channel projecting into a wedge-shaped area between said upper press roll and said at least one dewatering belt and extending along said at least one press nip to be transverse to the pulp web, and a connection to connect said at least one suction channel to a source of reduced pressure; a collecting tank connected to said at least one suction channel that receives and transports away water aspirated into said at least one suction channel; said at least one suction channel comprising an upper channel wall and a lower channel wall forming said suction channel, said upper channel wall and said lower channel wall extending along the at least one press nip to run transverse to the pulp web, each of said upper channel wall and said lower channel wall extending at an acute angle to said at least one dewatering belt at least in an initial zone of the suction channel, and said upper channel wall is part of a water capture device for water thrown off from said upper press roll above said at least one suction channel.