Abstract: Machine and process for producing a fibrous material web. The machine includes at least one shoe press having at least one drying cylinder and a shoe press unit which are arranged to form a pressing nip elongated in a web travel direction. At least one suctioned apparatus is arranged before the at least one shoe press relative to the web travel direction, and a water-permeable continuous carrying belt is arranged to guide the fibrous material web over the at least one suctioned apparatus and through the elongated pressing nip. A hood subjected to an overpressure is assigned to the suctioned apparatus and is arranged to support an underpressure effect of the at least one suctioned apparatus. The process includes guiding the fibrous material web and the carrying belt through the elongated pressing nip, and supporting an underpressure effect of the suctioned apparatus by creating an overpressure in the hood.
Type:
Grant
Filed:
June 14, 2001
Date of Patent:
August 24, 2004
Assignee:
Voith Pater Patent GmbH
Inventors:
Thomas Thoroe Scherb, Harald Schmidt-Hebbel, Karl Steiner
Abstract: Process for determining disturbances of a moisture cross profile of a fibrous material web in a paper making machine, a paper making machine, and a measuring arrangement for measuring the disturbances, the process including guiding the fibrous material web by way of at least one water-permeable belt and collecting and draining off water released from the belt. The water is collected by several sections separated from one another. The process further includes measuring per time unit, the amount of water in each section, wherein the sections extend at right angles to a web running direction over only a partial section of the fibrous material web. The paper making machine includes at least one water-permeable belt, the belt being wrapped around a roll. The measuring arrangement includes a water collection device having the form of one of a trough, or channel.
Type:
Application
Filed:
December 31, 2001
Publication date:
August 22, 2002
Applicant:
VOITH PATER PATENT GMBH
Inventors:
Joachim Grabscheid, Ulrich Begemann, Oswald Satzger, Wolfgang Mayer, Ralf Rziha, Wolfgang Bamberger, Georg Kleiser, Thomas Ruhl