Duct configuration for a through-air drying apparatus in a paper

Details Duct configuration for a through-air drying apparatus in a paper Duct configuration for a through-air drying apparatus in a paper

1998-11-06

2000-06-27

Ferensic, Denise L.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34122, 34130, F26B 1102

Patent

active

060791160

ABSTRACT:
A through-air drying apparatus for drying a traveling wet paper web supported on a continuous fabric comprises a dryer roll about which the fabric and web are partially wrapped and which has a foraminous roll face, a supply hood which surrounds the portion of the roll about which the fabric and web are wrapped and which supplies heated air through the fabric and web and through the roll face into the interior of the roll, and an exhaust system for exhausting air from the roll. An axial exhaust passage is formed through at least one head of the roll. An exhaust manifold is connected to the exhaust passage and defines two outlets on opposite sides of the manifold. A pair of movable ducts are sealingly and releasably engaged with the outlets in the opposite sides of the manifold, the ducts being spaced apart on opposite sides of the roll so that an access space is defined between the two ducts for access to the roll and supply hood. The movable ducts are pivotally connected to fixed ducts by bendable bellows sections of the movable ducts and by hinges. The movable ducts pivot about axes parallel to the rotation axis of the dryer roll such that the ducts extend axially beyond the roll by about the same axial extent in both the open and closed positions. The duct system is also suitable for supplying air to the interior of a roll in an outward-flow type of through-air drying apparatus.

REFERENCES:
patent: 3303576 (1967-02-01), Sisson
patent: 3432936 (1969-03-01), Cole et al.
patent: 3762067 (1973-10-01), Whittaker et al.
patent: 3808846 (1974-05-01), Fleissner
patent: 4096643 (1978-06-01), Futcher
patent: 4103434 (1978-08-01), Walker
patent: 4268974 (1981-05-01), Price
patent: 4328626 (1982-05-01), Lietner
patent: 4462868 (1984-07-01), Oubridge et al.
patent: 4523390 (1985-06-01), McCarthy
patent: 4536970 (1985-08-01), Eskelinen
patent: 4706391 (1987-11-01), Urbas
patent: 4758310 (1988-07-01), Miller
patent: 5022163 (1991-06-01), IIvespaa et al.
patent: 5146696 (1992-09-01), Mayer et al.
patent: 5255447 (1993-10-01), Christ
patent: 5383288 (1995-01-01), Ilmarinen et al.
patent: 5416979 (1995-05-01), Joiner
patent: 5465504 (1995-11-01), Joiner
patent: 5495678 (1996-03-01), IImarinen et al.
patent: 5515619 (1996-05-01), Kahl et al.
patent: 5546675 (1996-08-01), McGraw et al.
patent: 5553392 (1996-09-01), Hanaya
patent: 5575084 (1996-11-01), Vuorinen
patent: 5647141 (1997-07-01), Hanaya
patent: 5653041 (1997-08-01), IImarinen et al.
patent: 5666740 (1997-09-01), Leinonen et al.
patent: 5678321 (1997-10-01), Deshpande et al.
patent: 5738760 (1998-04-01), Svanqvist et al.
patent: 5771602 (1998-06-01), Heikkila et al.
patent: 5784804 (1998-07-01), Nowakowski
patent: 5915813 (1999-06-01), Joiner
patent: 5937538 (1999-08-01), Joiner
patent: 5992040 (1999-11-01), Nordang
patent: 6003241 (1999-12-01), Komulainen et al.
patent: 6003245 (1999-12-01), Lipponen et al.
patent: 6006444 (1999-12-01), Baubock et al.

Affiliated with

Also associated with

Rating

Duct configuration for a through-air drying apparatus in a paper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Duct configuration for a through-air drying apparatus in a paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duct configuration for a through-air drying apparatus in a paper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1773519