Long-nip press, particularly for the dewatering of a fiber web

Details Long-nip press, particularly for the dewatering of a fiber web Long-nip press, particularly for the dewatering of a fiber web

D - Textiles, Paper

21

F

D21F 1/78 (2006.01) D21F 3/00 (2006.01) D21F 3/02 (2006.01)

Patent

CA 2067066

An extended nip press for the dewatering of a fiber web has an endless flexible press element, like a press jacket or press belt. A press shoe which has a concave slide surface for the flexible press element, and the slide surface is adapted to the curve of a backing roll. The shoe is displaceable toward the backing roll in order to press the pressing element against it. A stationary shoe bed, which is detachably connected to a stationary support, has a depression which is provided with a packing and receives the press shoe to form a pressure chamber so that the shoe bed and the press shoe form a cylinder-piston unit. The press shoe is coupled to the shoe bed by means of at least one connecting element. The connecting element is spring biased with respect to the shoe bed and may itself be flexible or be flexibly moved to permit the radial displacement as well as the tilting of the press shoe relative to the shoe bed.

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