US 2008/0005921 A1 · DEVICE AND METHOD FOR PRODUCING AND/OR FINISHING A WEB OF FIBROUS MATERIAL

Device and method for producing and/or finishing a web of fibrous material

OwnerThomas Gruber-Nadlinger, Gunter Halmschlager +9inventors

InventorsThomas Gruber-Nadlinger, Gunter Halmschlager, Christoph Haase, Herbert Boden, Norbert Karner, Peter Kastner, Gunter Seitlhuber, Gerhard Holtmann, Andreas Figerl, Rainer Kloibhofer, Erich Rollenitz

Life of this patent

Estimating the term…

Abstract

The invention relates to a device and a method for producing and/or transforming a web of fibrous material, in particular a paper or cardboard web. Said device includes a heatable and rotatable cylinder, in particular a drying cylinder of a drying section, and a cylinder sleeve which can be impinged from the inside by a heating fluid. In order to improve the heating power below the external surface of the cylinder sleeve, at least one channel is provided in order to guide the heating fluid.

Claims67

Dependent claims

A device for at least one of producing and finishing a web of fibrous material comprising:

a heatable and rotatable drying cylinder of a drying section, said drying cylinder including a first cylinder shell configured for being loaded from an inside with a heating fluid, said first cylinder shell including an outer surface below which is formed at least one channel for passing said heating fluid through.

Dependencies are inferred from the claim text.

Facts

Application

11/773,725Filed 5 Jul 2007

Priority

DE 10 2005 000 795.35 Jan 2005

Published

10 Jan 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

D21F 5/027
Heating the cylinders: using a heat-transfer fluid between the heating means and the cylinder shell
D21F 5/02
Dryer section of machines for making continuous webs of paper: drying on cylinders
D21F 5/021
Drying on cylinders: construction of the cylinders
D21F
Paper-making machines