EP 1484442 B1 20080716 - Method for treating a web, in particular a paper web
Title (en)
Method for treating a web, in particular a paper web
Title (de)
Verfahren zum Behandeln einer Bahn, insbesondere einer Papierbahn
Title (fr)
Procédé de traitement d'une bande, en particulier d'une bande de papier
Publication
Application
Priority
DE 10325947 A 20030607
Abstract (en)
[origin: EP1484442A1] In a paper manufacturing process a web (11) of paper or carton feeds between a lower shoe drum (2) with a flexible mantle (5) and a heated overhead drum (3). The two drums form a broad nip (4) between their two faces. The mantle (5) is continually monitored for signs of damage that would indicate the onset of fire. If fire is detected the drums are separated and the web continues through the nip as a fire blanket. Mantle damage is detected by monitoring a change in pressure within a void (8) surrounded by the mantle. The shoe drum is monitored by an optical device e.g. a camera. In the event of a web break the web winds itself around either the top or bottom drum behind the wide nip. The rolled-up web is detached from the drum when the accumulated paper reaches a pre-determined thickness on the drum.
IPC 8 full level
CPC (source: EP)
D21F 3/0218 (2013.01); D21G 1/006 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1484442 A1 20041208; EP 1484442 B1 20080716; AT E401451 T1 20080815; DE 10325947 B3 20050120; DE 10325947 C5 20091126; DE 502004007588 D1 20080828
DOCDB simple family (application)
EP 04102026 A 20040511; AT 04102026 T 20040511; DE 10325947 A 20030607; DE 502004007588 T 20040511