Title:
【発明の名称】ポケット換気方法およびその装置
Document Type and Number:
Japanese Patent JP2688104
Kind Code:
B2
Abstract:
Method and apparatus for ventilating pockets in a twin-wire multi-cylinder dryer of a paper machine which comprises upper and lower lines of drying cylinders, an upper wire guided by surfaces of the upper cylinders and upper guide rolls and a lower wire guided by surfaces of the lower cylinders and lower guide rolls, and wherein the web runs between the upper and lower cylinders over an open draw, includes providing the guide rolls with perforated mantles for directing air flows from their interiors into the pockets, and providing blow boxes with nozzles for directing air flows into the pockets.
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Inventors:
Ilkka Avola
Application Number:
JP7715190A
Publication Date:
December 08, 1997
Filing Date:
March 28, 1990
Export Citation:
Assignee:
Valmet Paper Machinery Inc.
International Classes:
D21F5/04; (IPC1-7): D21F5/04
Attorney, Agent or Firm:
Takao Katori