Shoe press belts and shoe press employing the same

Details Shoe press belts and shoe press employing the same Shoe press belts and shoe press employing the same

D - Textiles, Paper

21

F

D21F 3/00 (2006.01) D21F 3/02 (2006.01)

Patent

CA 2481470

Shoe press belts (11; 21; 31; 41; 51; 61) endlessly formed of an elastic material and a shoe press device using the shoe press belts, the shoe press belts wherein a plurality of drain grooves (15; 25; 35; 45; 55; 65) are formed in the outer peripheral surfaces of the shoe press belts along the circumferential direction thereof, and the depth of these drain grooves gradually increases starting at the pressurizing area center parts (C1; C2; C3; C4; C5) of the shoe press belts toward pressurizing area end parts (A1, A1'; A2, A2'; A3, A3'; A4, A4'; A5, A5'), whereby the shoe press belts capable of uniformly dehydrating an entire wet paper and the shoe press device using the belts can be provided.

La présente invention concerne, d'une part des courroies de compression de chaussures (11; 21; 31; 41; 51; 61) sans fin en matière élastique, et d'autre part un dispositif à comprimer les chaussures utilisant ces courroies. Ces courroies de compression de chaussures pourvues d'une pluralité de rainures de drainage (15; 25; 35; 45; 55; 65) sont réalisées dans les surfaces périphériques extérieures des courroies de compression de chaussures selon le sens de sa circonférence. La profondeur de ces rainures de drainage augmente graduellement des centres des zones de pressurisation (C1; C2; C3; C4; C5) des courroies de compression des chaussures vers les extrémités des zones de pressurisation (A1, A1'; A2, A2'; A3, A3'; A4, A4'; A5, A5'). L'invention permet ainsi de réaliser, d'une part des courroies de compression de chaussures capables de déshydrater uniformément tout un papier humide, et d'autre part un dispositif de compression de chaussures utilisant ces courroies.

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