Title:
【発明の名称】紙ウエブまたは板紙ウエブを乾燥する乾燥部の概念および方法
Document Type and Number:
Japanese Patent JPH11503496
Kind Code:
A
Abstract:
PCT No. PCT/FI96/00196 Sec. 371 Date Oct. 10, 1997 Sec. 102(e) Date Oct. 10, 1997 PCT Filed Apr. 12, 1996 PCT Pub. No. WO96/32534 PCT Pub. Date Oct. 17, 1996The invention concerns a dryer-section concept of a paper/board machine and a method in the drying of a paper/board web (W). The dryer section comprises a number of drying cylinder groups (RI . . . RN), which comprise a single-wire draw, on whose support the web (W) is guided so that it meanders as loop-shaped from a drying cylinder onto a suction cylinder. The web (W)/the wire (H) is guided so that the web is placed against the face of the drying cylinder and the wire is placed outside. In the dryer-section concept, the web (W) is passed from one drying cylinder group (RI) into the next dryer group (RII) and further. According to the invention, at least some of the drying cylinders (K'1, K'2, K'3) include impingement units (100, 101, 102) or equivalent in connection with them, through which units a heated medium, preferably air or steam, is passed through the wire into connection with the web (W) so as to produce a two-sided drying effect and to increase the drying capacity.
Inventors:
Yuppi, Cali
Carlsson, Marc
Edelman, Cali
Carlsson, Marc
Edelman, Cali
Application Number:
JP53074996A
Publication Date:
March 26, 1999
Filing Date:
April 12, 1996
Export Citation:
Assignee:
Valmet Corporation
International Classes:
D21F5/04; D21F5/18; (IPC1-7): D21F5/04; D21F5/18
Attorney, Agent or Firm:
Takao Katori