Apparatus for drying a fibre web

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 5/00 (2006.01)

Patent

CA 2237549

An apparatus for drying a fibre web, the apparatus comprising two endless bands that conduct heat well and are impermeable to air, which bands are arranged to run part of the way parallel with each other, the first band (1) being heated and the second band (2a) being cooled and the fibre web (3) being conducted together with at least one fabric between the bands (1, 2a) in such a way that the fibre web is in contact with the heated band (1) and the fabric is between the fibre web and the cooled band (2a). The invention comprises additionally a third band (2b) that conducts heat well and is impermeable to air, which band is located after the second band (2a) in the travel direction of the bands and forms together with the first band (1) a second drying zone.

L'invention concerne un appareil pour sécher une bande de fibres, l'appareil comprenant deux bandes sans fin conduisant bien la chaleur et imperméables à l'air, ces bandes étant agencées pour se déplacer sur une partie de leur parcours parallèlement l'une à l'autre, la première bande (1) étant chauffée et la seconde bande (2a) étant refroidie. La bande de fibres (3) est amenée avec au moins un tissu entre les bandes (1, 2a) de manière à ce que la bande de fibres soit en contact avec la bande chauffée (1) et que le tissu soit entre la bande de fibres et la bande refroidie (2a). L'invention concerne en outre une troisième bande (2b) qui conduit bien la chaleur et qui est imperméable à l'air, laquelle bande se trouve disposée derrière la seconde bande (2a) dans la direction de mouvement des bandes et forme avec la première bande (1) une seconde zone de séchage.

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