Method and device for drying paper

Details Method and device for drying paper Method and device for drying paper

1993-03-02

1995-01-24

Gromada, Denise L.

Drying and gas or vapor contact with solids

Process

With nondrying treating of material

34394, 34123, 34124, 34119, F26B 700

Patent

active

053832884

ABSTRACT:
A method and device in the drying of paper, especially of fine paper or newsprint is disclosed. A paper web to be dried is passed over a mantle face of a large-diameter flow-through cylinder. On the flow-through cylinder, a set of drying-gas jets is applied to the free outer face of the web through a nozzle arrangement. Water is evaporated outward from the outer part of the web by means of the set of drying-gas jets. The water vapor thus evaporated is removed through spaces in the blowing-on hood. By means of the set of drying-gas jets, the interior of the web to be dried is also heated. The mantle face of the flow-through cylinder is cooled by means of a medium flow. Water that has been vaporized out of the web and that has been condensed onto the cooled faces is sucked by means of negative pressure present in the interior of the flow-through cylinder.

REFERENCES:
patent: 3377056 (1968-04-01), Boye
patent: 3891500 (1975-06-01), Kankaanpaa 34123

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