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Simulation of press dewatering

: Probst-Schendzielorz, Stefan; Rief, Stefan; Wiegmann, Andreas; Andrä, Heiko; Schmitt, Matthias W.

Volltext urn:nbn:de:0011-n-4704093 (759 KByte PDF)
MD5 Fingerprint: d7171373f2c770aad91ca96903324713
Erstellt am: 23.2.2018

Hirn, U. ; TU Graz:
Progress in Paper Physics Seminar 2011. Conference proceedings : Held at Graz University of Technology in Graz, Austria, September 5th - 8th 2011
Graz: Verlag der TU Graz, 2011
ISBN: 978-3-85125-163-0
ISBN: 978-3-85125-164-7
DOI: 10.3217/978-3-85125-163-0
Progress in Paper Physics Seminar <2011, Graz>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ITWM ()

Dewatering of pulp in a paper machine is a well established process. Nevertheless, it is far from being fully understood. One of the major steps in this process is the mechanical dewatering within the press section. It is achieved by applying large mechanical loads on the wet paper web while at the same time providing an escape route for the excess water. The quality of this process is influenced by many parameters.
Besides the press nip parameters like pressure, roll diameters and press type (roll or shoe press), also other factors contribute to the mechanical dewatering performance. Among these factors the press felts, that transport the paper web through the press nip, are a major influence. Besides dewatering pulp, press felts govern also the papers smoothness and printability.