EP1564329A1 - Section de post-séchage - Google Patents

Section de post-séchage Download PDF

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Publication number
EP1564329A1
EP1564329A1 EP05100332A EP05100332A EP1564329A1 EP 1564329 A1 EP1564329 A1 EP 1564329A1 EP 05100332 A EP05100332 A EP 05100332A EP 05100332 A EP05100332 A EP 05100332A EP 1564329 A1 EP1564329 A1 EP 1564329A1
Authority
EP
European Patent Office
Prior art keywords
fibrous web
drying
dryer
floating
section
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.)
Ceased
Application number
EP05100332A
Other languages
German (de)
English (en)
Inventor
Roland Mayer
Antje Stein
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 Paper 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
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1564329A1 publication Critical patent/EP1564329A1/fr
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/18—Drying webs by hot air

Definitions

  • the invention relates to a device for drying a paper, board, tissue or another fibrous web in a after-dryer section of a machine for Production and / or finishing of the fibrous web, which a Coating device for coating the fibrous web follows, with at least a floating dryer for contactless drying, in which the fibrous web Hot air is applied to both sides.
  • Such drying devices have been known for some time, with the Float dryers connect one or two-row drying cylinder groups.
  • the Floating dryers ensure after moistening through the coating device for a predrying and the drying cylinders take over then the main part of Drying. This often sets a pronounced curl of the fibrous web.
  • the object of the invention is therefore, the curl of the fibrous web at as intensive drying as possible.
  • the object has been achieved in that the predominant Drying performance of the after-dryer section of one or more Is applied to flotation dryers.
  • the drying performance is the extent of the fibrous web removed moisture.
  • the increased effort for more intensive drying is at Machine speeds of at least 1000 m / min, preferably 1200 m / min more than balanced.
  • the heating capacity of at least one flotation dryer with respect to be controlled separately on both sides of the fibrous web, the temperature and / or the speed of at least one side of the fibrous web directed hot air of a floating dryer is controllable.
  • the heating power of Suspended dryer can preferably also on both sides of the fibrous web be separately controllable.
  • the controllability of the heating power can be at or be realized several Schweftrocknern.
  • the fibrous web together with at least one air-permeable belt is passed through one or more floating dryer.
  • the fibrous web should thereby by each floating dryer of be performed at least one air-permeable belt.
  • a very intensive drying at the minimum minimum curl occurs when the total drying capacity of the after-dryer section of one or more Flood dryers is provided. This arrangement is also very space efficient.
  • the contact drying section of a single-row dryer group the preferably consists of 2 to 4 drying cylinders, or of a double row Drying group are formed, preferably from 4 to 6 drying cylinders consists.
  • the fibrous web is guided by at least one drying wire, which presses the fibrous web against the heated drying cylinder. While the fibrous web in the two-row drying group with two superposed rows of drying cylinders meandering over the drying cylinders, this is done in the single-row drying group alternately on the drying cylinder and guide rollers.
  • the application of the device takes place especially in wood-free paper and / or fibrous webs whose basis weight is at least 60 g / m2.
  • the fibrous web 1 in the form of Copy paper with a basis weight of more than 60 g / m2 of one Drying section passes to a coating device 4 in the form of a size press.
  • the fibrous web 1 for contactless Drying passed through one or more floating dryer 2, wherein in particular the guide 3 between the size press and the first Floating 2 the fibrous web 1 leads contactlessly via a compressed air cushion.
  • the fibrous web 1 is hot air from both sides applied, resulting in an intensive two-sided drying. It is the Heating power of the float dryer 2 at least with respect to one side of the Fiber web 1 controllable. This makes it possible to correspond to one fearing curl to dry one side of the fibrous web 1 stronger than the other side.
  • FIG. 1 and 3 follows the Floating dryers 2 in the web running 8 a short single-tier drying group.
  • This dryer group is the fibrous web 1 meandering alternately over heated drying cylinder 5 and 6 suctioned guide rollers out.
  • the Fiber web 1 of a drying wire 7 out which is the fibrous web. 1 presses against the arranged below the fibrous web 1 drying cylinder 5. Because of the intensive drying by the floating dryers 2 are sufficient here two Drying cylinder 5, resulting in a relatively short after-dryer section.
  • the fibrous web 1 As shown in Figure 3, of a air-permeable belt 11 are passed through the floating dryer 2.

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  • Paper (AREA)
EP05100332A 2004-02-14 2005-01-20 Section de post-séchage Ceased EP1564329A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007296 2004-02-14
DE200410007296 DE102004007296A1 (de) 2004-02-14 2004-02-14 Nachtrockenpartie

Publications (1)

Publication Number Publication Date
EP1564329A1 true EP1564329A1 (fr) 2005-08-17

Family

ID=34684057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05100332A Ceased EP1564329A1 (fr) 2004-02-14 2005-01-20 Section de post-séchage

Country Status (2)

Country Link
EP (1) EP1564329A1 (fr)
DE (1) DE102004007296A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029432B3 (de) * 2008-06-23 2009-09-17 Prinovis Ltd. & Co. Kg Trocknungsanlage für durchlaufende Warenbahnen in Form von bedruckten und/oder beschichteten Papierbahnen
DE102010064297A1 (de) 2010-12-29 2012-07-05 Voith Patent Gmbh Trockenpartie einer Maschine zur Herstellung einer Faserstoffbahn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741128A1 (de) * 1986-12-18 1988-06-30 Valmet Oy Verfahren zur steuerung und/oder ueberwachung eines bahnbeschichtungstrocknungsprozesses
EP0643168A1 (fr) * 1993-08-07 1995-03-15 J.M. Voith GmbH Dispositif de l'enduction d'une bande de papier
EP0916763A2 (fr) * 1995-02-01 1999-05-19 Valmet Corporation Procédé de fabrication de papier à surfaces travaillées et partie sèche d'une machine à papier
EP1156155A2 (fr) * 2000-05-17 2001-11-21 Voith Paper Patent GmbH Section de séchage
WO2004099495A1 (fr) * 2003-05-08 2004-11-18 Metso Paper, Inc. Procede pour controler le roulage de papier lors du traitement de papier surface et unite de finition d'une machine a papier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741128A1 (de) * 1986-12-18 1988-06-30 Valmet Oy Verfahren zur steuerung und/oder ueberwachung eines bahnbeschichtungstrocknungsprozesses
EP0643168A1 (fr) * 1993-08-07 1995-03-15 J.M. Voith GmbH Dispositif de l'enduction d'une bande de papier
EP0916763A2 (fr) * 1995-02-01 1999-05-19 Valmet Corporation Procédé de fabrication de papier à surfaces travaillées et partie sèche d'une machine à papier
EP1156155A2 (fr) * 2000-05-17 2001-11-21 Voith Paper Patent GmbH Section de séchage
WO2004099495A1 (fr) * 2003-05-08 2004-11-18 Metso Paper, Inc. Procede pour controler le roulage de papier lors du traitement de papier surface et unite de finition d'une machine a papier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029432B3 (de) * 2008-06-23 2009-09-17 Prinovis Ltd. & Co. Kg Trocknungsanlage für durchlaufende Warenbahnen in Form von bedruckten und/oder beschichteten Papierbahnen
DE102010064297A1 (de) 2010-12-29 2012-07-05 Voith Patent Gmbh Trockenpartie einer Maschine zur Herstellung einer Faserstoffbahn
WO2012089410A1 (fr) 2010-12-29 2012-07-05 Voith Patent Gmbh Section de séchage d'une machine pour la production d'une bande continue de matière fibreuse
CN103403253A (zh) * 2010-12-29 2013-11-20 沃依特专利有限责任公司 用于制造纤维料幅的机器的干燥部

Also Published As

Publication number Publication date
DE102004007296A1 (de) 2005-09-15

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