Single wire dryer group with adjustable reversing rolls

Details Single wire dryer group with adjustable reversing rolls Single wire dryer group with adjustable reversing rolls

F - Mech Eng,Light,Heat,Weapons

26

B

F26B 13/08 (2006.01) D21F 5/04 (2006.01) F26B 13/14 (2006.01)

Patent

CA 2042320

Abstract A single wire dryer group for a web-producing and particularly a papermaking-machine. A plurality of heatable drying cylinders are arrayed in a row. A respective suction reversing roll is disposed between adjacent drying cylinders. An endless support belt for the web to be dried travels alternately over a drying cylinder over the next adjacent reversing roll and then over the next adjacent drying cylinder. Movable bearings support each of the reversing rolls so that the distance between the reversing roll and at least the preceding drying cylinder in the path of the belt is variable. The direction of motion of the bearings is parallel to the central plane joining the axes of the two drying cylinders adjacent the respective reversing roll. The reversing roll has an initial normal position closer to the preceding web supplying drying cylinder and further from the following web receiving drying cylinder. The bearings are selectively also movable over a large distance from the respective adjacent drying cylinders. An air blast box blows upon the web on the support belt passing over the reversing roll.

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