Method for drying a fibre web

Details Method for drying a fibre web Method for drying a fibre web

1997-01-15

1998-03-03

Bennett, Henry A.

Drying and gas or vapor contact with solids

Process

Diverse types of drying operations

34355, 34417, 34242, F26B 504

Patent

active

057221820

ABSTRACT:
A method for drying a fibre web comprising passing the fibre web with at least one paper machine fabric between two bands which move in parallel. The bands have a good thermal conductivity and are impermeable to air. The fibre web and paper machine fabric are passed between the bands so that the fibre web is in contact with a first band to be heated and the paper machine fabric is in contact with a second band to be cooled. The method includes heating the first band with pressurized hot water, and cooling the band to be cooled with cooling water having substantially the same pressure and a lower temperature than the hot water.

REFERENCES:
patent: 4043157 (1977-08-01), Schiffer
patent: 4112586 (1978-09-01), Lehtinen
patent: 4932139 (1990-06-01), Lehtinen
patent: 4958444 (1990-09-01), Rautakorpi et al.
patent: 5594996 (1997-01-01), Haavisto
patent: 5594997 (1997-01-01), Lehtinen
patent: 5604995 (1997-02-01), Lehtinen

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