EP 2396468 B1 20160713 - METHOD AND DEVICE FOR DRYING A FIBROUS WEB
Title (en)
METHOD AND DEVICE FOR DRYING A FIBROUS WEB
Title (de)
VERFAHREN UND VORRICHTUNG ZUR TROCKNUNG EINER FASERSTOFFBAHN
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR SÉCHER UNE BANDE DE MATIÈRE FIBREUSE
Publication
Application
Priority
- EP 2010050895 W 20100127
- DE 102009000753 A 20090211
Abstract (en)
[origin: CA2752172A1] The invention relates to a method and to a device for drying a fibrous web wherein the traveling fibrous web is acted upon by steam and hot, moist air in the region of a preceding drying zone (10) and is then fed to the preceding drying zone (10) of a downstream drying zone (12) comprising a drying cylinder (14) and a hood (16) allocated thereto. Hot air (18) is taken out of the hood (16) allocated to the drying cylinder (14) of the downstream drying zone (12). To create at least a portion of the steam for the preceding drying zone (10), condensate and/or fresh water occurring in the drying cylinder (14) of the downstream drying zone (12) is heated by the hot air (18) taken out of the hood (16) by means of a first heat exchanger (20). Alternatively or additionally for creating at least a portion of the hot, moist air for the preceding drying zone (10), the hot air (18) taken out of the hood (16) guided through the first heat exchanger (20) is fed to the preceding drying zone (10).
IPC 8 full level
D21F 3/02 (2006.01); D21F 5/18 (2006.01); D21F 5/20 (2006.01)
CPC (source: EP US)
D21F 3/0272 (2013.01 - EP US); D21F 5/181 (2013.01 - EP US); D21F 5/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009000753 A1 20100812; CA 2752172 A1 20100819; CL 2011001913 A1 20120120; CN 102317540 A 20120111; CN 102317540 B 20141203; EP 2396468 A1 20111221; EP 2396468 B1 20160713; JP 2012517538 A 20120802; MX 2011007848 A 20110817; RU 2011134654 A 20130320; US 2012000089 A1 20120105; US 9328460 B2 20160503; WO 2010091950 A1 20100819
DOCDB simple family (application)
DE 102009000753 A 20090211; CA 2752172 A 20100127; CL 2011001913 A 20110809; CN 201080007344 A 20100127; EP 10701524 A 20100127; EP 2010050895 W 20100127; JP 2011549506 A 20100127; MX 2011007848 A 20100127; RU 2011134654 A 20100127; US 201113206802 A 20110810