Dryer group web transfer region for paper making machine with op

Details Dryer group web transfer region for paper making machine with op Dryer group web transfer region for paper making machine with op

1992-01-24

1993-04-27

Bennett, Henry

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34116, F26B 1308

Patent

active

052050521

ABSTRACT:
A dry end of a paper making machine comprising two dryer groups of dryer cylinders each followed by a respective web path reversal roll, which may be in the form of a suction guide roll, and a respective porous web support belt that meanders past each dryer cylinder and the next web path reversal roll for each dryer group. The last one of the first dryer group reversal rolls and the first one of the second dryer group reversal rolls, and additional guide rolls for guiding both the first and the second support belts, being so placed that at the place where the web is transferred from the first support belt to the second support belt, there is a spaced distance between the first and the second support belts. A web separation device generally inside the loop of the first support belt and opposite the first one of the second reversal rolls directs air through the first support belt to help transfer the web from the first support belt to the second support belt at the first one of the second reversal rolls. The web transfer device may be an additional blast zone on the circumference of the last one of the first reversal rolls, or an additional guide roll for the first support belt positioned to deflect the air, or another deflecting device positioned to deflect the air.

REFERENCES:
patent: 5065529 (1991-11-01), Skaugen et al.

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