DE502004007588D1 - Process for treating a web, in particular a paper web - Google Patents

Process for treating a web, in particular a paper web

Info

Publication number
DE502004007588D1
DE502004007588D1 DE502004007588T DE502004007588T DE502004007588D1 DE 502004007588 D1 DE502004007588 D1 DE 502004007588D1 DE 502004007588 T DE502004007588 T DE 502004007588T DE 502004007588 T DE502004007588 T DE 502004007588T DE 502004007588 D1 DE502004007588 D1 DE 502004007588D1
Authority
DE
Germany
Prior art keywords
web
drum
mantle
fire
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE502004007588T
Other languages
German (de)
Inventor
Joerg Dr Rheims
Hans-Rolf Conrad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33154593&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE502004007588(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of DE502004007588D1 publication Critical patent/DE502004007588D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses

Landscapes

  • Paper (AREA)

Abstract

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.
DE502004007588T 2003-06-07 2004-05-11 Process for treating a web, in particular a paper web Expired - Fee Related DE502004007588D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10325947A DE10325947C5 (en) 2003-06-07 2003-06-07 Process for treating a web, in particular a paper web

Publications (1)

Publication Number Publication Date
DE502004007588D1 true DE502004007588D1 (en) 2008-08-28

Family

ID=33154593

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10325947A Expired - Fee Related DE10325947C5 (en) 2003-06-07 2003-06-07 Process for treating a web, in particular a paper web
DE502004007588T Expired - Fee Related DE502004007588D1 (en) 2003-06-07 2004-05-11 Process for treating a web, in particular a paper web

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10325947A Expired - Fee Related DE10325947C5 (en) 2003-06-07 2003-06-07 Process for treating a web, in particular a paper web

Country Status (3)

Country Link
EP (1) EP1484442B1 (en)
AT (1) ATE401451T1 (en)
DE (2) DE10325947C5 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005007835A1 (en) * 2005-02-21 2006-08-31 Voith Paper Patent Gmbh Press Nip Control
DE102007045895A1 (en) 2007-09-26 2009-04-09 Voith Patent Gmbh A band calendering apparatus and method of operating a band calendering apparatus
DE102009055248A1 (en) * 2009-12-23 2011-06-30 Voith Patent GmbH, 89522 Apparatus and method for monitoring a pressing device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI4742U1 (en) * 2000-10-11 2000-12-13 Valmet Corp Calendar
US6505549B2 (en) * 2000-11-20 2003-01-14 Metso Paper Karlstad Ab Method of and an apparatus for protecting the jacket upon a web break in a hot shoe press roll nip
DE10157914A1 (en) * 2001-11-26 2002-08-29 Voith Paper Patent Gmbh Paper making or coating machine has speed sensors monitoring web speed between fixed points and linked to guillotine
DE10158909C1 (en) * 2001-11-30 2003-04-17 Voith Paper Patent Gmbh Calendering apparatus includes a tear monitoring apparatus with a pair of clamps that move to clamp the sheet between them when they receive a signal from the tear monitoring apparatus

Also Published As

Publication number Publication date
DE10325947C5 (en) 2009-11-26
DE10325947B3 (en) 2005-01-20
ATE401451T1 (en) 2008-08-15
EP1484442B1 (en) 2008-07-16
EP1484442A1 (en) 2004-12-08

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee