Press belt and shoe press roll

Details Press belt and shoe press roll Press belt and shoe press roll

D - Textiles, Paper

21

F

D21F 3/00 (2006.01)

Patent

CA 2537813

A press system comprises both-end corresponding regions positioned so as to correspond to both ends of a press roll or a press shoe in a width direction and having a small thickness and a center region positioned between the both-end corresponding regions and having a thickness larger than that of the both-end corresponding region. Many drainage grooves extend along a travel direction of the belt and are turned in the outer peripheral surface of said upper elastic layer. The drainage grooves are formed at the center region, while they are not found at the both end corresponding regions. The press system provides a more simplistic structure than before, in which a crack is effectively prevented from being generated in both-end corresponding regions positioned so as to correspond to both ends of a press member in a width direction such as a press roll or press shoe.

Une toile de presse (2) comporte, d'une part des zones (B) de faible épaisseur disposées de façon à correspondre aux deux segments d'extrémité selon l'axe de la largeur d'un cylindre de presse (1) ou d'un sabot de formation d'une presse (3), et d'autre part, entre les zones (B), une zone centrale (A) d'une épaisseur supérieure à celle des zones (B).

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