Method and device for drying or cooling a paper web

Details Method and device for drying or cooling a paper web Method and device for drying or cooling a paper web

1995-06-07

1996-11-19

Look, Edward K.

Drying and gas or vapor contact with solids

Process

Gas or vapor contact with treated material

34448, 34454, F26B 1318, F26B 1320

Patent

active

055750842

ABSTRACT:
A method and device for drying and/or cooling a paper web or equivalent in which the web is passed over the circumference of a revolving roll on support of a face of a support wire that faces the roll. The web is dried and/or cooled by means of a gas blown through openings in the mantle of the roll into a space between the outer face of the roll and the web supported by the support wire, whereby a support zone formed by pressurized gas is formed between the outer face of the roll and the web. Humidified gas is passed out of the support zone into the interior of the roll through other openings in the mantle of the roll into a system of exhaust ducts placed inside the roll.

REFERENCES:
patent: 3057079 (1962-10-01), Schmidt
patent: 3246401 (1966-04-01), Walser et al.
patent: 3696522 (1972-10-01), Krikorian
patent: 4137644 (1979-02-01), Karlsson
patent: 4297794 (1981-11-01), Luthi
patent: 4693015 (1987-09-01), Hemsath et al.
patent: 5172844 (1992-12-01), Mueller
patent: 5299364 (1994-04-01), Heikkila et al.

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