EP1564329A1 - Section de post-séchage - Google Patents
Section de post-séchage Download PDFInfo
- 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
Links
Images
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.
Landscapes
- Paper (AREA)
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)
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)
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 |
-
2004
- 2004-02-14 DE DE200410007296 patent/DE102004007296A1/de not_active Withdrawn
-
2005
- 2005-01-20 EP EP05100332A patent/EP1564329A1/fr not_active Ceased
Patent Citations (5)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
17P | Request for examination filed |
Effective date: 20060217 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOITH PATENT GMBH |
|
17Q | First examination report despatched |
Effective date: 20070702 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20080128 |