Press unit of a paper machine for the manufacture of tissue...

Details Press unit of a paper machine for the manufacture of tissue... Press unit of a paper machine for the manufacture of tissue...

D - Textiles, Paper

21

F

D21F 5/04 (2006.01) D21F 3/02 (2006.01) D21F 3/04 (2006.01) D21G 1/00 (2006.01)

Patent

CA 2124489

The invention is directed to a press system of a paper machine for making tissue, including a drying cylinder, a press roll with a smooth surface, an extended-shoe press unit, and a press roll fashioned as a suction roll or grooved roll. A first press gap is formed by the press roll with a smooth surface and the press roll designed as a suction roll or grooved roll. A water collection tub is coordinated with the suction roll or grooved roll. A second gap is formed between the press roll with the smooth surface and the extended-shoe press unit after which the felt leaves the periphery of the press roll with the smooth surface. Following thereafter, a third press gap is provided between the press roll with the smooth surface and the drying cylinder. The felt does not pass through the third press gap.

Système de presse d'une machine à papier pour la fabrication de papier de soie. L'invention comprend un cylindre sécheur, un rouleau de presse avec une surface lisse, une unité de presse à sabot allongé, et un rouleau de presse formé comme un rouleau aspirant ou un rouleau cannelé. Un premier écartement de presse est formé par le rouleau de presse à surface lisse et le rouleau de presse conçu comme un rouleau aspirant ou un rouleau cannelé. Un bac collecteur d'eau est coordonné au rouleau aspirant ou rouleau cannelé. Un deuxième écartement est formé entre le rouleau de presse à surface lisse et l'unité de presse à sabot allongé après laquelle le feutre s'éloigne de la périphérie du rouleau de presse à surface lisse. Ensuite, un troisième écartement est fourni entre le rouleau de presse à surface lisse et le cylindre sécheur. Le feutre ne traverse pas le troisième écartement.

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