Device for manufacturing a material web

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 5/04 (2006.01)

Patent

CA 2205293

Device for producing a material web in a dryer part that includes at least one dryer section having a plurality of cylinders including heating cylinders and cooled cylinders. The device may also include a porous dryer screen and a metal belt that may be guided with the material web in a meandering path alternatingly around the heated and cooled cylinders. At least on of the metal belt and the dryer screen being highly prestressed and the device may also include at least on of a heating installation and a cooling installation assigned to act on an area of a circumference of the plurality of cylinders in which the material web may be supported by the dryer screen and the metal belt.

Dispositif pour la production d'une bande de matériau dans la partie séchage comprenant au moins une section sècherie comportant une pluralité de cylindres incluant des cylindres chauffeurs et des cylindres refroidisseurs. Le dispositif peut également comprendre une toile de séchage poreuse et une bande métallique qui peut être guidée avec la bande de matériau dans un parcours sinueux, alternativement autour d'un cylindre chauffeur et d'un cylindre refroidisseur. Au moins la bande métallique ou la toile de séchage sont soumis à une forte précontrainte et le dispositif peut comprendre également au moins une installation de chauffage et une installation de refroidissement pouvant agir sur une surface de la circonférence de la pluralité de cylindres, dans laquelle la bande de matériau peut être supportée par la toile de séchage et la bande métallique.

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