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Title:
スルーエアー乾燥製紙機用シール構造
Document Type and Number:
Japanese Patent JP3672531
Kind Code:
B2
Abstract:
An apparatus for drying a wet web of paper comprising at least one through-air dryer, each dryer including a rotatable cylinder having a porous cylindrical deck, at least one continuous drying fabric wrapped about a portion of the circumference of the deck, a plurality of fabric support members positioned relative to each cylinder so as to direct the fabric and the web onto and from each cylinder, and a hood and a plenum cooperating to form a substantially sealed enclosure containing each cylinder. The drying fabric is adapted to support and transport the paper web about a portion of the circumference of the cylinder of each dryer. The fabric support members preferably include a first fabric support member located at an upstream end of the apparatus for directing the wet web and the fabric onto the cylinder of the upstream through-air dryer, and a second fabric support member located at a downstream end of the apparatus for directing the web and the fabric from the cylinder of the downstream through-air dryer. The hood further interacts with at least the first and the second fabric support members and covers a portion of each cylinder about which the fabric and the wet web are wrapped. Further, the plenum cooperates with the hood and at least the first and the second fabric support members to substantially seal the enclosure containing each cylinder. Preferably, and more specifically, the plenum forms seals with both the first and the second fabric support members with at least one of the seals being formed by the plenum sealingly engaging the fabric wrapped about the corresponding fabric support member.

Inventors:
Jewitt Dennis Yee
Application Number:
JP2001545642A
Publication Date:
July 20, 2005
Filing Date:
December 01, 2000
Export Citation:
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Assignee:
Metso Paper Karlstad Activolag
International Classes:
D21F5/00; D21F5/18; (IPC1-7): D21F5/18
Domestic Patent References:
JP54018909A
JP50094212A
JP51031389B1
JP51127205A
Foreign References:
US3303576
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda