EP1746203A1 - Drying section - Google Patents
Drying section Download PDFInfo
- Publication number
- EP1746203A1 EP1746203A1 EP06114301A EP06114301A EP1746203A1 EP 1746203 A1 EP1746203 A1 EP 1746203A1 EP 06114301 A EP06114301 A EP 06114301A EP 06114301 A EP06114301 A EP 06114301A EP 1746203 A1 EP1746203 A1 EP 1746203A1
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- EP
- European Patent Office
- Prior art keywords
- drying
- fibrous web
- section
- drying section
- dryer
- 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.)
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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
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G7/00—Damping devices
Definitions
- the invention relates to a drying section for drying a paper, board, tissue or another fibrous web in a machine for producing and / or finishing the same with at least one single-row dryer group in which the fibrous web supported by a band, alternately heated by drying cylinders and between these arranged guide rollers is guided, wherein only one side of the fibrous web comes into contact with the drying cylinders of the respective drying group and from which the fibrous web is subsequently fed to a winding device.
- the object of the invention is therefore to simplify the web guide without supplying the winding device an over-dried fibrous web.
- this object is achieved in that the fibrous web is dried in the dryer section to a dry content between 95 and 99% and then rewetted via at least one moistening again to a dry content at which the fibrous web at the end of the dryer section a dry content between 87 and 94 % Has.
- the rewetting within the dryer section not only makes the machine shorter overall, but it also makes it possible to use the stable web guide within the single-tier dryer group during rewet.
- the moistening device should be designed as a nozzle moistener.
- the nozzle wetnerthesed at least 40 nozzles per meter of web width.
- the droplet size of the water sprayed from the nozzle moistener is less than 200 ⁇ m. This not only allows a uniform distribution of the water, it also provides for a short period of time for the moisture balance over the web width.
- the fibrous web can be wound up immediately after drying with the desired dry content.
- the moisture content of the fibrous web should be measured by a moisture meter before rewetting.
- the measurement of the moisture content after the rewetting also allows conclusions about the moisture content before rewetting on the amount of water applied to the moistening device.
- the arrangement of the moisture meter designed after the dryer section much easier and more accurate, since the moisture has penetrated at least substantially already in the fibrous web.
- the properties of the fibrous web are to be made uniform. However, before winding, the dry content must be reduced again to the desired value. In order to ensure sufficient overdrying, the moisture content of the fibrous web should be increased by at least 7-12% by rewetting.
- the moistening device should be arranged in the last single-row dryer section of the dryer section.
- this may not necessarily be the last dryer section of the dryer section, especially if the dryer section also has double-tier dryer sections in which the fibrous web is passed over two rows of heated dryer cylinders with both sides of the fibrous web in contact therewith.
- the drying section as a whole is simplified in construction, if this only has single-row drying groups.
- the moistening device is arranged in the region of the last, preferably evacuated, guide roller of the corresponding dryer group. As a result, the fibrous web still comes into contact with the last drying cylinder of the dryer group, which assists penetration of the moisture into the fibrous web.
- the fibrous web 1 is transferred to a drying section 2 of the paper machine for drying.
- This drying section 2 consists here by way of example of several single-row dryer groups 4,5.
- the fibrous web 1 is supported by a belt 9 in the form of a drying wire of the respective drying group 4, 5, alternately guided over heated drying cylinders 6 and guide rollers 7 arranged between them.
- the drying cylinders 6 are arranged in one row and here below the fibrous web 1. This means that only the underside of the fibrous web 1 comes into contact with the lateral surface of the drying cylinder 6.
- This arrangement is simple in construction and facilitates the removal of web remnants and the like, which is why one-sided drying can be accepted.
- the fibrous web 1 is transferred with a dry content of about 90% to a following winding device 3 for winding the fibrous web 1.
- the fibrous web 1 is overdried to a solids content of over 97%. This leads to a homogenization of the moisture profile of the fibrous web 1 and thus also to a reduction in the curl of the fibrous web 1 and a reduction of cockling.
- a moistening device in the form of a nozzle moistener 8 which is arranged in the region of the last, evacuated guide roller 7 of the last drying group 5 of the dryer section 2, is used.
- the nozzle moistener 8 has more than 40 water nozzles per meter of web width and in addition air atomizing nozzles to moisten the fibrous web 1 with water having a droplet size of less than 200 microns.
- the distance between the dry moisture carrier 8 and the fibrous web 1 also remains constant.
- the moisture content is increased by more than 7%.
- the fibrous web 1 runs unsupported. This also allows a simple way of measuring the moisture content via a moisture meter 10 in this area.
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- Paper (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Die Erfindung betrifft eine Trockenpartie zur Trocknung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung derselben mit zumindest einer einreihigen Trockengruppe, in der die Faserstoffbahn von einem Band gestützt, abwechselnd über beheizte Trockenzylinder und zwischen diesen angeordnete Leitwalzen geführt wird, wobei nur eine Seite der Faserstoffbahn mit den Trockenzylindern der jeweiligen Trockengruppe in Kontakt kommt und von der die Faserstoffbahn anschließend einer Wickeleinrichtung zugeführt wird.The invention relates to a drying section for drying a paper, board, tissue or another fibrous web in a machine for producing and / or finishing the same with at least one single-row dryer group in which the fibrous web supported by a band, alternately heated by drying cylinders and between these arranged guide rollers is guided, wherein only one side of the fibrous web comes into contact with the drying cylinders of the respective drying group and from which the fibrous web is subsequently fed to a winding device.
Es ist bekannt, den Trockengehalt der Faserstoffbahn nach der Trockenpartie zu senken.It is known to reduce the dry content of the fibrous web after the dryer section.
Dies ist jedoch relativ aufwendig und beeinträchtigt die Bahnführung erheblich.However, this is relatively expensive and affects the web guide considerably.
Es ist auch bekannt, insbesondere bei Zeitungsdruckpapieren die Faserstoffbahn zur Curl-Reduzierung geringfügig einseitig zu befeuchten.It is also known, in particular for newsprint paper, to moisten the fibrous web for curl reduction slightly on one side.
Die Aufgabe der Erfindung ist es daher, die Bahnführung zu vereinfachen, ohne der Wickeleinrichtung ein übertrocknete Faserstoffbahn zuzuführen.The object of the invention is therefore to simplify the web guide without supplying the winding device an over-dried fibrous web.
Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass die Faserstoffbahn in der Trockenpartie auf einen Trockengehalt zwischen 95 und 99% getrocknet wird und danach über zumindest eine Befeuchtungseinrichtung wieder auf einen Trockengehalt rückbefeuchtet wird, bei dem die Faserstoffbahn am Ende der Trockenpartie einen Trockengehalt zwischen 87 und 94% hat.According to the invention, this object is achieved in that the fibrous web is dried in the dryer section to a dry content between 95 and 99% and then rewetted via at least one moistening again to a dry content at which the fibrous web at the end of the dryer section a dry content between 87 and 94 % Has.
Durch die Rückbefeuchtung innerhalb der Trockenpartie wird die Maschine insgesamt nicht nur kürzer, sondern es kann auch die stabile Bahnführung innerhalb der einreihigen Trockengruppe während der Rückbefeuchtung genutzt werden.The rewetting within the dryer section not only makes the machine shorter overall, but it also makes it possible to use the stable web guide within the single-tier dryer group during rewet.
Bei der Rückbefeuchtung ist so kein, sonst üblicher freier Zug der Faserstoffbahn, in dem sie ohne Stützung verläuft, vorhanden. Es muss daher auch nicht befürchtet werden, dass die Faserstoffbahn während der Befeuchtung weggeblasen wird. Dies bedeutet eine Reduzierung der Abrissgefahr und ein schnelleres Überführen der Faserstoffbahn. Dabei bleibt auch der Abstand zwischen der Befeuchtungseinrichtung und der Faserstoffbahn konstant.When rewetting so no, otherwise usual free train of the fibrous web in which it runs without support exists. It is therefore not necessary to fear that the fibrous web will be blown off during moistening. This means a reduction in the risk of demolition and a faster transfer of the fibrous web. The distance between the moistening device and the fibrous web also remains constant.
Des weiteren verbleibt durch die frühzeitigere Rückbefeuchtung auch mehr Zeit für den Ausgleich des Feuchtegehaltes über die Dicke der Faserstoffbahn bis zum Aufwickeln.Furthermore, by the earlier remoistening also more time for the compensation of the moisture content on the thickness of the fibrous web remains until winding.
Dies vereinfacht den Prozess der SC-offline-Herstellung mit Übertrocknung und Rückbefeuchtung erheblich.This greatly simplifies the process of SC offline production with overdrying and rewetting.
Zur Begrenzung des Aufwands ist es vorteilhaft und oft bereits ausreichend, wenn die Rückbefeuchtung nur über eine Befeuchtungseinrichtung erfolgt.To limit the effort, it is advantageous and often already sufficient if the rewet only via a humidifier.
Allerdings kann es bei dicken Papieren und/oder für eine starke Rückbefeuchtung von Vorteil sein, wenn die Rückbefeuchtung über mehrere Befeuchtungseinrichtungen erfolgt.However, with thick papers and / or strong rewet, it may be beneficial to rewet through multiple humidifiers.
Wegen der Einfachheit und Effizienz sollte die Befeuchtungseinrichtung als Düsenfeuchter ausgebildet sein.For simplicity and efficiency, the moistening device should be designed as a nozzle moistener.
Um dabei die von den Düsen des Düsenfeuchters ausgehende Besprühung der Faserstoffbahn mit Wasser noch feiner zu gestalten, ist es vorteilhaft wenn dieser anstelle reiner Wasserdüsen Zweistoffdüsen zur Zerstäubung besitzt.In order to make the outgoing of the nozzles of the nozzle moisturizer spraying the fibrous web with water even finer, it is advantageous if this has instead of pure water nozzles two-fluid nozzles for atomization.
Zur Realisierung eines möglichst gleichmäßigen Sprühauftrags des Wassers auf die Faserstoffbahn ist es ebenfalls vorteilhaft, wenn der Düsenfeuchter mindestens 40 Düsen pro Meter Bahnbreite aufweist.To realize the most uniform spray application of the water on the fibrous web, it is also advantageous if the nozzle wetnerthesed at least 40 nozzles per meter of web width.
In jedem Fall sollte jedoch gewährleistet sein, dass die Tröpfchengröße des vom Düsenfeuchter versprühten Wassers kleiner als 200 µm ist. Dies erlaubt nicht nur eine gleichmäßige Verteilung des Wassers, es sorgt auch für eine kurze Zeitspanne für den Feuchteausgleich über die Bahnbreite.In any case, however, it should be ensured that the droplet size of the water sprayed from the nozzle moistener is less than 200 μm. This not only allows a uniform distribution of the water, it also provides for a short period of time for the moisture balance over the web width.
Im Ergebnis kann die Faserstoffbahn unmittelbar nach der Trocknung mit dem gewünschten Trockengehalt aufgewickelt werden.As a result, the fibrous web can be wound up immediately after drying with the desired dry content.
Um den Umfang der Rückbefeuchtung bestimmen zu können, sollte der Feuchtegehalt der Faserstoffbahn vor der Rückbefeuchtung von einem Feuchtemesser gemessen werden.In order to determine the extent of rewetting, the moisture content of the fibrous web should be measured by a moisture meter before rewetting.
Ergänzend oder alternativ kann es aber auch vorteilhaft sein, den Feuchtegehalt der Faserstoffbahn nach der Rückbefeuchtung von einem Feuchtemesser zu messen.Additionally or alternatively, it may also be advantageous to measure the moisture content of the fibrous web after the rewetting of a moisture meter.
Die Messung des Feuchtegehaltes nach der Rückbefeuchtung erlaubt über die aufgetragene Wassermenge der Befeuchtungseinrichtung auch Rückschlüsse auf den Feuchtegehalt vor der Rückbefeuchtung.The measurement of the moisture content after the rewetting also allows conclusions about the moisture content before rewetting on the amount of water applied to the moistening device.
Außerdem gestaltet sich die Anordnung des Feuchtemessers nach der Trockenpartie wesentlich einfacher und genauer, da die Feuchtigkeit zumindest im wesentlichen bereits in die Faserstoffbahn eingedrungen ist.In addition, the arrangement of the moisture meter designed after the dryer section much easier and more accurate, since the moisture has penetrated at least substantially already in the fibrous web.
Durch die Übertrocknung der Faserstoffbahn in der Trockenpartie sollen die Eigenschaften der Faserstoffbahn, insbesondere deren Trockengehalt vergleichmäßigt werden. Vor der Aufwickelung muss der Trockengehalt jedoch wieder auf den gewünschten Wert vermindert werden. Um eine ausreichende Übertrocknung gewährleisten zu können, sollte der Feuchtegehalt der Faserstoffbahn durch die Rückbefeuchtung um mindestens 7-12 % erhöht werden.Due to the overdrying of the fibrous web in the dryer section, the properties of the fibrous web, in particular its dry content, are to be made uniform. However, before winding, the dry content must be reduced again to the desired value. In order to ensure sufficient overdrying, the moisture content of the fibrous web should be increased by at least 7-12% by rewetting.
Um die Trockenpartie möglichst effektiv zu nutzen, sollte die Befeuchtungseinrichtung in der letzten einreihigen Trockengruppe der Trockenpartie angeordnet sein.In order to use the dryer section as effectively as possible, the moistening device should be arranged in the last single-row dryer section of the dryer section.
Dies muss jedoch nicht unbedingt die letzte Trockengruppe der Trockenpartie sein, insbesondere dann nicht, wenn die Trockenpartie auch zweireihige Trockengruppen aufweist, in denen die Faserstoffbahn über zwei Reihen von beheizten Trockenzylindern geführt wird, wobei beide Seiten der Faserstoffbahn mit diesen in Kontakt kommen.However, this may not necessarily be the last dryer section of the dryer section, especially if the dryer section also has double-tier dryer sections in which the fibrous web is passed over two rows of heated dryer cylinders with both sides of the fibrous web in contact therewith.
Falls am Ende der Trockenpartie mehrere einreihige Trockengruppen vorhanden sind, so kann es im Interesse einer langen Einwirkzeit der Feuchtigkeit und somit einer verbesserten Vergleichmäßigung dieser über die Dicke vorteilhaft sein, wenn die Befeuchtungseinrichtung in der vorletzten einreihigen Trockengruppe der Trockenpartie angeordnet ist.If several single-row dryer groups are present at the end of the dryer section, it may be advantageous in the interest of a long exposure time of the moisture and thus an improved homogenization of the same across the thickness, if the moistening device is arranged in the penultimate single-row dryer group of the dryer section.
Die Trockenpartie insgesamt vereinfacht sich im Aufbau, wenn diese nur einreihige Trockengruppen aufweist.The drying section as a whole is simplified in construction, if this only has single-row drying groups.
In jedem Fall ist von Vorteil, wenn die Befeuchtungseinrichtung im Bereich der letzten, vorzugsweise besaugten Leitwalze der entsprechenden Trockengruppe angeordnet ist. Dies führt dazu, dass die Faserstoffbahn noch mit dem letzten Trockenzylinder der Trockengruppe in Kontakt kommt, was das Eindringen der Feuchtigkeit in die Faserstoffbahn unterstützt.In any case, it is advantageous if the moistening device is arranged in the region of the last, preferably evacuated, guide roller of the corresponding dryer group. As a result, the fibrous web still comes into contact with the last drying cylinder of the dryer group, which assists penetration of the moisture into the fibrous web.
Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt die Figur einen schematischen Querschnitt durch das Ende einer Papiermaschine.The invention will be explained in more detail with reference to an exemplary embodiment. In the accompanying drawing, the figure shows a schematic cross section through the end of a paper machine.
Nach der Blattbildung und Entwässerung wird die Faserstoffbahn 1 zur Trocknung an eine Trockenpartie 2 der Papiermaschine übergeben.After sheet formation and dewatering, the
Diese Trockenpartie 2 besteht hier beispielhaft aus mehreren einreihigen Trockengruppen 4,5.This
In den einreihigen Trockengruppen 4,5 wird die Faserstoffbahn 1 von einem Band 9 in Form eines Trockensiebes der jeweiligen Trockengruppe 4,5 gestützt, abwechselnd über beheizte Trockenzylinder 6 und zwischen diesen angeordnete Leitwalzen 7 geführt.In the single-
Dabei sind die Trockenzylinder 6 in einer Reihe und hier unter der Faserstoffbahn 1 angeordnet. Dies bedeutet, dass auch nur die Unterseite der Faserstoffbahn 1 mit der Mantelfläche der Trockenzylinder 6 in Kontakt kommt.The
Diese Anordnung ist einfach im Aufbau und erleichtert die Abfuhr von Bahnresten und ähnlichem, weshalb die einseitige Trocknung in Kauf genommen werden kann.This arrangement is simple in construction and facilitates the removal of web remnants and the like, which is why one-sided drying can be accepted.
Für eine zweiseitige Trocknung der Faserstoffbahn 1 wäre der Einsatz von wenigstens einer zweireihigen Trockengruppe oder einer einreihigen Trockengruppe, deren Trockenzylinder 6 sich auch über der Faserstoffbahn 1 befinden, nötig.For a two-sided drying of the
Zur Aufheizung drückt dabei das Trockensieb die Faserstoffbahn 1 gegen die heiße Mantelfläche der Trockenzylinder 6.For heating while pressing the dryer fabric, the
Nach der Trockenpartie 2 wird die Faserstoffbahn 1 mit einem Trockengehalt von ca. 90% an eine folgende Wickeleinrichtung 3 zum Aufwickeln der Faserstoffbahn 1 übergeben.After the
In der Trockenpartie 2 wird die Faserstoffbahn 1 auf einen Trockengehalt von über 97 % übertrocknet. Dies führt zu einer Vergleichmäßigung des Feuchtequerprofils der Faserstoffbahn 1 und damit auch zu einer Verringerung der Rollneigung der Faserstoffbahn 1 sowie zu einer Reduzierung von Cockling.In the
Zur Rückbefeuchtung der Faserstoffbahn 1 dient eine Befeuchtungseinrichtung in Form eines Düsenfeuchters 8, welcher im Bereich der letzten, besaugten Leitwalze 7 der letzten Trockengruppe 5 der Trockenpartie 2 angeordnet ist.For rewetting the
Der Düsenfeuchter 8 hat mehr als 40 Wasserdüsen pro Meter Bahnbreite und zusätzlich Luft-Zerstäuberdüsen, um die Faserstoffbahn 1 mit Wasser mit einer Tröpfchengröße von weniger als 200 µm zu befeuchten.The
Da die während der Umschlingung der besaugten Leitwalze 7 außen liegende Faserstoffbahn 1 in diesem Bereich eine stabile Führung erfährt, bleibt auch der Abstand zwischen Düserfeuchter 8 und Faserstoffbahn 1 konstant.Since the
Außerdem wird durch den Düsenfeuchter 8 auch nicht die Abrissgefahr erhöht.In addition, the risk of demolition is not increased by the
Durch diese Rückbefeuchtung der Faserstoffbahn 1 wird der Feuchtegehalt um mehr als 7 % erhöht.By this rewetting of the
Da die Faserstoffbahn 1 nach der Rückbefeuchtung noch einen beheizten Trockenzylinder 6 umschlingt, kommt es bis zum Ende der Trockenpartie 2 zu einem ausreichenden Eindringen der Feuchtigkeit in die Faserstoffbahn 1.Since the
Zwischen der Trockenpartie 2 und der Wickeleinrichtung 3 verläuft die Faserstoffbahn 1 ungestützt. Dies erlaubt auch auf einfache Weise die Messung des Feuchtegehaltes über einen Feuchtemesser 10 in diesem Bereich.Between the
Da die Feuchtemessung hier nach der Rückbefeuchtung erfolgt, kann jedoch über die vom Düsenfeuchter 8 auf die Faserstoffbahn 1 aufgetragene Wassermenge auf den Feuchtegehalt der Faserstoffbahn 1 vor dem Düsenfeuchter 8 geschlossen werden.Since the moisture measurement takes place here after the rewetting, however, it is possible to conclude the moisture content of the
Claims (15)
die Faserstoffbahn (1) in der Trockenpartie (2) auf einen Trockengehalt zwischen 95 und 99% getrocknet wird und danach über zumindest eine Befeuchtungseinrichtung wieder auf einen Trockengehalt rückbefeuchtet wird, bei dem die Faserstoffbahn (1) am Ende der Trockenpartie (2) einen Trockengehalt zwischen 87 und 94% hat.Drying section (2) for drying a paper, board, tissue or another fibrous web (1) in a machine for producing and / or finishing the same with at least one single-row drying group (4, 5) in which the fibrous web (1) supported by a belt (9), alternately over heated drying cylinders (6) and between them arranged guide rollers (7) is guided, wherein only one side of the fibrous web (1) with the drying cylinders (6) of the respective drying group comes into contact and from the the fibrous web (1) is subsequently fed to a winding device (3), characterized in that
the fibrous web (1) in the drying section (2) is dried to a dry content of 95-99% and then rewetted via at least one moistening device to a dry content at which the fibrous web (1) at the end of the dryer section (2) a dry content between 87 and 94%.
die Befeuchtungseinrichtung als Düsenfeuchter (8) ausgebildet ist.Drying section (2) according to one of the preceding claims, characterized in that
the moistening device is designed as a nozzle moistener (8).
die Tröpfchengröße des vom Düsenfeuchter (8) versprühten Wassers kleiner als 200 µm beträgt.Drying section (2) according to one of claims 4 to 6, characterized in that
the droplet size of the sprayed water from the nozzle (8) is less than 200 microns.
der Feuchtegehalt der Faserstoffbahn (1) vor der Rückbefeuchtung von einem Feuchtemesser gemessen wird.Drying section (2) according to one of the preceding claims, characterized in that
the moisture content of the fibrous web (1) before rewetting is measured by a moisture meter.
der Feuchtegehalt der Faserstoffbahn (1) nach der Rückbefeuchtung von einem Feuchtemesser (10) gemessen wird.Drying section (2) according to one of the preceding claims, characterized in that
the moisture content of the fibrous web (1) after the rewetting of a moisture meter (10) is measured.
der Feuchtegehalt der Faserstoffbahn (1) durch die Rückbefeuchtung um mindestens 7 % erhöht wird.Drying section (2) according to one of the preceding claims, characterized in that
the moisture content of the fibrous web (1) is increased by at least 7% through rewetting.
die Befeuchtungseinrichtung in der letzten einreihigen Trockengruppe (5) der Trockenpartie (2) angeordnet ist.Drying section (2) according to one of the preceding claims, characterized in that
the moistening device is arranged in the last single-row drying group (5) of the dryer section (2).
die Trockenpartie (2) auch zweireihige Trockengruppen aufweist, in denen die Faserstoffbahn (1) über zwei Reihen von beheizten Trockenzylindern (6) geführt wird, wobei beide Seiten der Faserstoffbahn (1) mit diesen in Kontrakt kommen.Drying section (2) according to claim 11, characterized in that
the dryer section (2) also has two-row drying groups, in which the fibrous web (1) is guided over two rows of heated drying cylinders (6), both sides of the fibrous web (1) coming into contract with them.
die Befeuchtungseinrichtung in der vorletzten einreihigen Trockengruppe (4) der Trockenpartie (2) angeordnet ist.Drying section (2) according to one of claims 1 to 11, characterized in that
the moistening device is arranged in the penultimate single-row dryer group (4) of the dryer section (2).
die Trockenpartie (2) nur einreihige Trockengruppen (4,5) aufweist.Drying section (2) according to one of claims 1 to 11 or 13, characterized in that
the dryer section (2) only single-row dryer groups (4,5).
die Befeuchtungseinrichtung im Bereich der letzten Leitwalze (7) der entsprechenden Trockengruppe (4,5) angeordnet ist.Drying section (2) according to one of the preceding claims, characterized in that
the moistening device is arranged in the area of the last guide roller (7) of the corresponding drying group (4, 5).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005034065A DE102005034065A1 (en) | 2005-07-21 | 2005-07-21 | drying section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1746203A1 true EP1746203A1 (en) | 2007-01-24 |
| EP1746203B1 EP1746203B1 (en) | 2009-10-14 |
Family
ID=37074188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06114301A Not-in-force EP1746203B1 (en) | 2005-07-21 | 2006-05-22 | Drying section |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1746203B1 (en) |
| AT (1) | ATE445732T1 (en) |
| DE (2) | DE102005034065A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0726353A2 (en) * | 1995-02-01 | 1996-08-14 | Valmet Corporation | Method for producing surface-treated paper and dry end of a paper machine |
| WO1998044191A1 (en) * | 1997-03-27 | 1998-10-08 | Valmet Corporation | Method for control of the curl of paper in the dryer section of a paper machine and paper or board machine |
| DE20019719U1 (en) * | 2000-11-21 | 2001-03-01 | Valmet Corp | Arrangement for web performance in the paper machine |
| EP1486610A1 (en) * | 2003-06-13 | 2004-12-15 | Voith Paper Patent GmbH | Apparatus for manufacturing and/or treating a fibrous web |
| DE10325572A1 (en) * | 2003-06-05 | 2004-12-23 | Voith Paper Patent Gmbh | Process and assembly to make fibrous paper or carton has a final drying stage with short two-line drying unit with water spray jets |
-
2005
- 2005-07-21 DE DE102005034065A patent/DE102005034065A1/en not_active Withdrawn
-
2006
- 2006-05-22 EP EP06114301A patent/EP1746203B1/en not_active Not-in-force
- 2006-05-22 AT AT06114301T patent/ATE445732T1/en active
- 2006-05-22 DE DE502006005077T patent/DE502006005077D1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0726353A2 (en) * | 1995-02-01 | 1996-08-14 | Valmet Corporation | Method for producing surface-treated paper and dry end of a paper machine |
| WO1998044191A1 (en) * | 1997-03-27 | 1998-10-08 | Valmet Corporation | Method for control of the curl of paper in the dryer section of a paper machine and paper or board machine |
| DE20019719U1 (en) * | 2000-11-21 | 2001-03-01 | Valmet Corp | Arrangement for web performance in the paper machine |
| DE10325572A1 (en) * | 2003-06-05 | 2004-12-23 | Voith Paper Patent Gmbh | Process and assembly to make fibrous paper or carton has a final drying stage with short two-line drying unit with water spray jets |
| EP1486610A1 (en) * | 2003-06-13 | 2004-12-15 | Voith Paper Patent GmbH | Apparatus for manufacturing and/or treating a fibrous web |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502006005077D1 (en) | 2009-11-26 |
| EP1746203B1 (en) | 2009-10-14 |
| ATE445732T1 (en) | 2009-10-15 |
| DE102005034065A1 (en) | 2007-01-25 |
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