Device for removing a web from a drying cylinder

Details Device for removing a web from a drying cylinder Device for removing a web from a drying cylinder

1992-12-11

1994-08-30

Gromada, Denise

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34117, 34120, F26B 1330

Patent

active

053415795

ABSTRACT:
In a paper making machine a porous support belt travels together with the web over a drying cylinder and leaves the cylinder at a point of removal. A suction box provided in the region of the web removal has a suction zone which is defined by means of two yieldable sealing strips which extend transversely to the direction of travel of the web, and each is supported in a sealing strip holder. The distance between each sealing strip holder and the outer surface of the drying cylinder amounts to at least 30 mm, and each of the yieldable sealing strips has, in its normal condition of operation, such an inherent stiffness that the sealing strip remains substantially free of deformation in the event of a difference in pressure of 0.01 to 0.1 bar between the suction zone and its surroundings.

REFERENCES:
patent: 4359828 (1982-11-01), Thomas
patent: 4698918 (1987-10-01), Kotitschke et al.
patent: 4856205 (1989-08-01), Meyer et al.
patent: 4932138 (1990-06-01), Liedes et al.
patent: 5068980 (1991-12-01), Muller
patent: 5086571 (1992-02-01), Hietanen
patent: 5115581 (1992-05-01), Viitanen
patent: 5163236 (1992-11-01), Heikkila 34117

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