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1. WO1991000388 - IMPROVED DEWATERING SYSTEM WITH VORTEX VALVE

Publication Number WO/1991/000388
Publication Date 10.01.1991
International Application No. PCT/US1990/003546
International Filing Date 21.06.1990
IPC
D21F 1/48 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
1Wet end of machines for making continuous webs of paper
48Suction apparatus
CPC
D21F 1/48
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
1Wet end of machines for making continuous webs of paper
48Suction apparatus
Applicants
  • ALBANY INTERNATIONAL CORP. [US/US]; 1373 Broadway Albany, NY 12204, US (AllExceptUS)
  • FIELDING, Thomas, Stephen [GB/GB]; GB (UsOnly)
  • MC CALL, Charles, Richard [GB/GB]; GB (UsOnly)
Inventors
  • FIELDING, Thomas, Stephen; GB
  • MC CALL, Charles, Richard; GB
Agents
  • WEISZ, Tiberiu; Kane, Dalsimer, Sullivan, Kurucz, Levy, Eiselle and Richard 711 Third Avenue New York, NY 10017, US
Priority Data
8914438.023.06.1989GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED DEWATERING SYSTEM WITH VORTEX VALVE
(FR) SYSTEME AMELIORE D'EGOUTTAGE MECANIQUE A VANNE TOURBILLONNAIRE
Abstract
(EN)
A dewatering system is disclosed in papermaking machine for removing water from a web (P) such as a paper sheet made of pulp. The drainage system includes a vacuum or suction box (1), a separator (3) for separating solids and/or liquids from the drainage, and vortex valve (6) connecting the separator (3) to vacuum (5). Advantageously, the vortex valve (6) operates to maintain a substantially constant pressure at the separator outlet independently of the gas flow through the valve (6).
(FR)
L'invention concerne un système d'égouttage mécanique utilisé dans une machine de fabrication de papier, destiné à éliminer l'eau d'une bande (P) telle qu'une feuille de papier en pâte de cellulose. Le système d'écoulement comprend un vide ou un caisson d'aspiration (1), un séparateur (3) destiné à séparer les solides et/ou les liquides de l'écoulement, ainsi qu'une vanne tourbillonnaire (6) reliant ledit séparateur (3) audit vide (5). Ladite vanne tourbillonnaire (6) maintient une pression sensiblement constante au niveau de la sortie du séparateur, indépendamment de l'écoulement de gaz dans ladite vanne (6).
Also published as
FI905016
NO19904382
Other related publications
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