Apparatus and method for regulating the profile of a paper web p

Details Apparatus and method for regulating the profile of a paper web p Apparatus and method for regulating the profile of a paper web p

1989-03-07

1990-07-24

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 41, 34122, F26B 300

Patent

active

049426753

ABSTRACT:
A method and apparatus for regulating the profile of a paper web passing over a Yankee cylinder in an integrated IR-dryer/Yankee hood (3,2), wherein the IR-dryer (3) is placed before the wet-end block of the Yankee cylinder. The amount of air leaking into the hood (2) through the gap between the hood (2) and the Yankee cylinder (1) is reduced by passing into this gap (h.sub.o) cooling air (5) warmed up in the IR-dryer (3) and taken from said IR-dryer (3).

REFERENCES:
patent: 4513516 (1985-04-01), Bjornberg

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