High-intensity through-air-drying for conversion of...

Details High-intensity through-air-drying for conversion of... High-intensity through-air-drying for conversion of...

D - Textiles, Paper

21

F

D21F 5/18 (2006.01) D21F 11/00 (2006.01) D21F 11/14 (2006.01)

Patent

CA 2234305

The present invention is a method of retrofilling a conventional felted wet-press paper machine to a through-air-drying (TAD) paper machine, without the need to move any of the apparatus sections that will be retained in the TAD machine. The present invention is a method of using an applied pressure differential in a reduced diameter TAD cylinder to achieve necessary drying conditions in a reduced area.

La présente invention porte sur une méthode pour convertir une machine à papier classique à presse humide feutrée en machine à papier avec sécheur à air traversant, sans qu'on n'ait besoin de déplacer aucune section d'appareils qu'on veut garder dans la machine à air traversant. La présente invention comporte une méthode utilisant l'application d'une pression différentielle dans un cylindre sécheur de diamètre réduit pour obtenir les conditions de séchage nécessaires dans un espace réduit.

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