Inventors:
Joachim Grabscheid - Gerstetten, DE
Karl Josef Böck - Heidenheim, DE
Ulrich Begemann - Heidenheim, DE
Thomas Elenz - Steinheim, DE
Peter Mirsberger - Baienfurt, DE
Hans Dahl - Ravensburg, DE
Hannes Vomhoff - Djursholm, SE
David Beck - Appleton WI
Assignee:
Voith Sulzer Papiertechnik Patent GmbH - Heindenheim
International Classification:
D21F 152
US Classification:
162207, 162208, 162289, 162297
Abstract:
Process and apparatus for dewatering a fibrous material web. The process includes guiding the fibrous material web through a dewatering zone, and directing a plurality of gas pressure pulses of a pressurized displacement gas one after the other onto a surface of the fibrous material web within the dewatering zone. The apparatus includes a device for forming a plurality of gas pressure pulses which are arranged one after the other within the dewatering zone. The plurality of gas pressure pulses are directed onto a surface of the fibrous material web.