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1. WO2020114820 - STEAM HEATED YANKEE DRYING CYLINDER FOR PAPER OR TISSUE MACHINES WITH CONDENSATE DRAINING SYSTEM

Publication Number WO/2020/114820
Publication Date 11.06.2020
International Application No. PCT/EP2019/082419
International Filing Date 25.11.2019
IPC
D21F 5/10 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5Dryer section of machines for making continuous webs of paper
02Drying on cylinders
10Removing condensate from the interior of the cylinders
D21F 5/18 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5Dryer section of machines for making continuous webs of paper
18Drying webs by hot air
CPC
D21F 5/10
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5Dryer section of machines for making continuous webs of paper
02Drying on cylinders
10Removing condensate from the interior of the cylinders
D21F 5/181
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
5Dryer section of machines for making continuous webs of paper
18Drying webs by hot air
181on Yankee cylinder
Applicants
  • VALMET AKTIEBOLAG [SE]/[SE]
Inventors
  • JONSSON, Ola
Agents
  • HYNELL INTELLECTUAL PROPERTY AB
Priority Data
1851513-005.12.2018SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) STEAM HEATED YANKEE DRYING CYLINDER FOR PAPER OR TISSUE MACHINES WITH CONDENSATE DRAINING SYSTEM
(FR) CYLINDRE DE SÉCHAGE À TAMBOUR CHAUFFÉ À LA VAPEUR POUR MACHINES À PAPIER OU À TISSU AVEC SYSTÈME DE DRAINAGE DE CONDENSAT
Abstract
(EN)
The invention relates to a steam condensate removal system in a steam-heated Yankee drying cylinder (3) for fiber webs. According to the invention is a continuous steam condensate catching groove (7) arranged in the inner surface with a length of the groove exceeding at least 5-10 turns over the inner surface. In one embodiment is a single continuous groove (7) running over the entire width of the steam-heated Yankee drying cylinder.
(FR)
L'invention concerne un système d'élimination de condensat de vapeur dans un cylindre de séchage à tambour chauffé à la vapeur (3) pour des bandes de fibres. Selon l'invention, une rainure de capture de condensat de vapeur continue (7) est réalisée dans la surface interne, une longueur de la rainure dépassant au moins 5 à 10 tours sur la surface interne. Dans un mode de réalisation, une rainure continue unique (7) s'étend sur la totalité de la largeur du cylindre de séchage à tambour chauffé à la vapeur.
Latest bibliographic data on file with the International Bureau