EP1586697A1 - Paper machine - Google Patents

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Publication number
EP1586697A1
EP1586697A1 EP05101588A EP05101588A EP1586697A1 EP 1586697 A1 EP1586697 A1 EP 1586697A1 EP 05101588 A EP05101588 A EP 05101588A EP 05101588 A EP05101588 A EP 05101588A EP 1586697 A1 EP1586697 A1 EP 1586697A1
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EP
European Patent Office
Prior art keywords
calender
fibrous web
cylinder
drying
machine according
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.)
Granted
Application number
EP05101588A
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German (de)
French (fr)
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EP1586697B1 (en
Inventor
Rüdiger Dr. Kurtz
Jörg Dr. Rheims
Udo Gabbusch
Joachim Hinz
Ingolf Cedra
Holger Humgerg
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Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Voith Paper Patent GmbH
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Publication date
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Publication of EP1586697A1 publication Critical patent/EP1586697A1/en
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Publication of EP1586697B1 publication Critical patent/EP1586697B1/en
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    • 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
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D21F5/044—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using air hoods over the cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Definitions

  • the invention relates to a machine for producing a paper, cardboard, Tissue or another fibrous web from a pulp suspension with a a heated cylinder and a pressure hood comprising a dry assembly and a calender for smoothing the fibrous web.
  • moisture gradient calendering In known paper machines, the paper web is more uniform Moisture distribution in all three spatial directions within the paper web for Calender led. Subsequently, for effective calendering to produce a moisture gradient in the direction of the web thickness (z direction) ("moisture gradient calendering ”) usually a steam box for condensate film formation on those paper web page used, the hot roller in Kalandernip assigned.
  • this object is achieved in that the dry arrangement is arranged immediately in front of the calender.
  • the circulating screen of the drying arrangement is due to the cooling in the Pressure hood and / or by an additional cooling enough cold, so it at the contact with the fibrous web in the dry arrangement this on the of the side facing away from the drying cylinder cools down so much that on this page more Moisture in the fibrous web remains as on the other side.
  • this before the calender on a device for moistening the fibrous web be arranged downstream of the side facing away from the drying cylinder to the already existing moisture profile to increase even further.
  • the calender includes a single nip and that a hard and heatable roller of the Glätttechniks the side facing away from the drying cylinder of the fibrous web is facing.
  • a shoe calender is used with advantage in which the moist side of the fibrous web wraps around a heatable roll, against the one non-heated press shoe presses.
  • a calender which comprises a plurality of nips and in which several hard and heatable Rolling the calender of the drying cylinder of the dryer assembly facing away from the fibrous web, wherein between the Heatable rollers each a soft roller is interposed.
  • the temperature and the contact pressure of the Drying cylinder are selected in the dry arrangement so that the Drying cylinder facing side of the fibrous web for the reeling of the Fibrous web required smoothness when passing through the dry assembly receives.
  • the invention thus provides the combination of a dry arrangement and created a calender in such a way that the moist and the cold side of the Dry arrangement, so the pressure hood facing side through the Condensation of the water from the fibrous web and through the cold sieves is generated and thereby also disadvantageously provided with strong wire marks, in the directly following calender, preferably in a hot shoe calender, on the hot calender roll is guided in the nip.
  • the generated by the dry assembly smooth and hot paper side often needs no additional treatment or Re-smoothing.
  • the moisture of the fibrous web at the exit from the drying arrangement on the Sieve-facing side is to optimize so that the resulting Sieve marking by the smoother still can be removed by a very hot roll side hits this side in the nip.
  • a machine for producing a fibrous web 1 comprises a Variety of drying cylinders 2 and guide rollers 3 comprehensive Drying device 4. This is a drying assembly 5 with a heated Drying cylinder 6 and a pressure hood 7 with a containing in this arranged downstream of cooling medium. The dry content of the fibrous web 1 is before entering the drying assembly 5 between 70 and 80%. After this Leaving the drying arrangement it is between 92 and 95%.
  • the fibrous web 1 is in order Deflection rollers 11, 12 to form a trained as Schuhglättwerk calender 13th forwarded.
  • This includes a heated cylinder 14, which with a Shoe roll 15 forms an elongated nip.
  • the fibrous web 1 is between the cylinder 14 and the shoe roll 15 passed such that the wet and provided with the markings of the screen 9 on the shell side of the Cylinder 14 is running and is smoothed by the hot cylinder 14.
  • Between Deflection rollers 11, 12 may additionally one more of the upper side of the fibrous web 1 facing device for moistening the fibrous web 1 are arranged if it already has too high a dry content on the upper side.
  • the fibrous web 1 After the fibrous web 1 has passed through the calender 13, it is in a Winding apparatus wound into a roll.
  • Paper machine (FIG. 2) becomes a pulp suspension from a headbox 16 a gap between two screens 17 and 18 of a Doppelsiebformers 19 fed.
  • the wires 17, 18 run in a wedge shape to each other to and include the pulp suspension between them. This is a first Dewatering of the pulp suspension, and it forms a fiber mat, from the a paper web 21 is created.
  • the twin-wire former 19 is followed by a press section 20.
  • the press section 20 comprises three pressing stations 21, 22, 23.
  • the first two pressing points 21, 22 form a tandem Nipco-Flex press section, in each case a roller 23, 24 cooperates with a shoe press roll 25, 26.
  • the press section 20 follows in the web running direction a guide rollers 27 and Drying cylinder 28 having drying section 29. After the drying section 29 is the paper web 21 between a drying cylinder 29 and a pressure hood 30th a dry assembly 31 passed, which is constructed like the Dry arrangement 5 according to FIG. 1.
  • the paper web 21 enters a calender 32, in which they is smoothed.
  • the calender 32 is of the type disclosed in EP 0 732 445 B1 constructed calender and includes only rollers that the paper web 21st smooth on one side on the upper side when passing through the dry assembly 31 Siebmark isten received.
  • the calender 32 has a roll stack with four rolls 33, 34, 35 and 36.
  • the Roller 33 is heatable, deflection-controlled and has a hard surface.
  • the roller 34 has a soft surface.
  • the roller 35 is heated and has a hard surface, while the roller 36 again has a soft outer surface.
  • the paper web 21 is one-sided on the markings smoothed side and at the same time heated until it is on this page the same degree of dryness and gloss and the same smoothness has been obtained as the opposite side.
  • the paper web 21 via further pulleys to a Winding machine 37 forwarded, in which it is wound into a winding.
  • the Winder 37 can also be used offline from the machine to manufacture the Paper web 21 may be arranged from the pulp suspension.

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Abstract

A papermaking machine surrenders a moist fibre web to a drying station with a cooling drum (6) located under a pressure hood (7) located immediately prior to a glazing station (13). Between the heated drum and glazing station the paper web is moistened on the side not having been in contact with the drum. The paper is moistened with steam or water spray. The glazing station has a single nip formed by a hard, heated drum. The assembly may have a number of glazing stations in series.

Description

Die Erfindung bezieht sich auf eine Maschine zum Herstellen einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn aus einer Faserstoffsuspension mit einer einen beheizten Zylinder und eine Druckhaube umfassenden Trockenanordnung und einem Glättwerk zum Glätten der Faserstoffbahn.The invention relates to a machine for producing a paper, cardboard, Tissue or another fibrous web from a pulp suspension with a a heated cylinder and a pressure hood comprising a dry assembly and a calender for smoothing the fibrous web.

Aus der WO 99/22067 ist beispielsweise eine Papiermaschine zur Herstellung einer Papierbahn aus einer Faserstoffsuspension bekannt.From WO 99/22067, for example, a paper machine for producing a Paper web known from a pulp suspension.

Bei bekannten Papiermaschinen wird die Papierbahn mit gleichmäßiger Feuchteverteilung in allen drei Raumrichtungen innerhalb der Papierbahn zum Kalander geführt. Anschließend wird zur effektiven Kalandrierung zur Erzeugung eines Feuchtegradienten in Richtung der Bahndicke (z - Richtung) ("moisture gradient calendering") üblicherweise ein Dampfblaskasten zur Kondensat-Filmbildung auf derjenigen Papierbahnseite eingesetzt, die der heißen Walze im Kalandernip zugeordnet ist.In known paper machines, the paper web is more uniform Moisture distribution in all three spatial directions within the paper web for Calender led. Subsequently, for effective calendering to produce a moisture gradient in the direction of the web thickness (z direction) ("moisture gradient calendering ") usually a steam box for condensate film formation on those paper web page used, the hot roller in Kalandernip assigned.

Es ist die Aufgabe der Erfindung, eine Maschine der eingangs genannten Art zu schaffen, in der die Papierbahn während ihrer Herstellung für die Glättung in einem zu der Maschine gehörenden Glättwerk optimiert ist.It is the object of the invention to provide a machine of the type mentioned create in which the paper web during its manufacture for smoothing in one is optimized to the machine belonging calender.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Trockenanordnung unmittelbar vor dem Glättwerk angeordnet ist.According to the invention, this object is achieved in that the dry arrangement is arranged immediately in front of the calender.

Mit Hilfe der Trockenanordnung gelingt es, eine Faserstoffbahn, insbesondere eine Papierbahn, mit in z - Richtung unterschiedlicher Feuchte und Temperatur, d. h. mit einem Feuchte- und Temperaturprofil, zu erzeugen und dann direkt dem Kalander zuzuführen, ohne dass eine zusätzliche Befeuchtung mit einem Kondensatfilm oder mit einem Wassersprühfilm notwendig ist. With the help of the dry arrangement succeeds, a fibrous web, in particular a Paper web, with in z - direction different humidity and temperature, d. H. With a moisture and temperature profile, and then directly to the calender feed without any additional humidification with a condensate film or with a water spray film is necessary.

Das umlaufende Sieb der Trockenanordnung ist aufgrund der Kühlung in der Druckhaube und/oder durch eine zusätzliche Kühlung genügend kalt, so dass es bei der Berührung mit der Faserstoffbahn in der Trockenanordnung diese auf der von dem Trockenzylinder abgewandten Seite soweit abkühlt, dass auf dieser Seite mehr Feuchtigkeit in der Faserstoffbahn verbleibt als auf der anderen Seite.The circulating screen of the drying arrangement is due to the cooling in the Pressure hood and / or by an additional cooling enough cold, so it at the contact with the fibrous web in the dry arrangement this on the of the side facing away from the drying cylinder cools down so much that on this page more Moisture in the fibrous web remains as on the other side.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen, der Beschreibung und den Zeichnungen.Advantageous developments of the invention will become apparent from the dependent claims, the description and the drawings.

Zusätzlich zur Erzeugung des Feuchtigkeitsprofils in der Trockenanordnung kann dieser vor dem Glättwerk eine Einrichtung zum Befeuchten der Faserstoffbahn auf der von dem Trockenzylinder abgewandten Seite nachgeordnet sein, um das bereits vorhandene Feuchtigkeitsprofil noch weiter zu erhöhen.In addition to generating the moisture profile in the dryer assembly, this before the calender on a device for moistening the fibrous web be arranged downstream of the side facing away from the drying cylinder to the already existing moisture profile to increase even further.

Für die Vergrößerung des Feuchtigkeitsprofils eignet sich insbesondere ein Dampfblaskasten oder ein Sprühfeuchtwerk.For the enlargement of the moisture profile is particularly suitable Steam box or a spray dampening unit.

In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass das Glättwerk einen einzigen Nip umfasst und dass eine harte und beheizbare Walze des Glättwerks der von dem Trockenzylinder abgewandten Seite der Faserstoffbahn zugewandt ist.In an advantageous embodiment of the invention it is provided that the calender includes a single nip and that a hard and heatable roller of the Glättwerks the side facing away from the drying cylinder of the fibrous web is facing.

Bei dieser Ausgestaltung wird mit Vorteil ein Schuhkalander eingesetzt, in dem die feuchtere Seite der Faserstoffbahn eine beheizbare Walze umschlingt, gegen die ein nicht-beheizter Pressschuh drückt.In this embodiment, a shoe calender is used with advantage in which the moist side of the fibrous web wraps around a heatable roll, against the one non-heated press shoe presses.

Alternativ zu dieser Vorrichtung lässt sich mit Vorteil auch ein Glättwerk einsetzen, das eine Mehrzahl von Nips umfasst und in dem mehrere harte und beheizbare Walzen des Glättwerks der von dem Trockenzylinder der Trockenanordnung abgewandten Seite der Faserstoffbahn zugewandt sind, wobei zwischen den beheizbaren Walzen jeweils eine weiche Walze zwischengeschaltet ist.Alternatively to this device can be used with advantage also a calender, which comprises a plurality of nips and in which several hard and heatable Rolling the calender of the drying cylinder of the dryer assembly facing away from the fibrous web, wherein between the Heatable rollers each a soft roller is interposed.

Mit Vorteil lässt sich auch vorsehen, dass die Temperatur und der Anpressdruck des Trockenzylinders in der Trockenanordnung so gewählt sind, dass die dem Trockenzylinder zugewandte Seite der Faserstoffbahn den für die Aufrollung der Faserstoffbahn erforderlichen Glättezustand beim Durchlaufen der Trockenanordnung erhält. Durch eine richtige Wahl dieser beiden Parameter lässt sich der gewünschte Endzustand der Faserstoffbahn in Hinblick auf deren Glätte erreichen.Advantageously, it can also be provided that the temperature and the contact pressure of the Drying cylinder are selected in the dry arrangement so that the Drying cylinder facing side of the fibrous web for the reeling of the Fibrous web required smoothness when passing through the dry assembly receives. By a proper choice of these two parameters can be the desired Final state of the fibrous web with regard to their smoothness reach.

Durch die Erfindung wird somit die Kombination aus einer Trockenanordnung und einem Kalander in der Weise geschaffen, dass die feuchte und die kalte Seite der Trockenanordnung, also die der Druckhaube zugewandte Seite, die durch die Kondensation des Wassers aus der Faserstoffbahn und durch die kalten Siebe erzeugt wird und dadurch auch nachteilig mit starken Siebmarkierungen versehen ist, im direkt folgenden Kalander, bevorzugt in einem heißen Schuhkalander, auf die heiße Kalanderwalze im Nip geführt wird. Die von der Trockenanordnung erzeugte glatte und heiße Papierseite benötigt oft keine weitere zusätzliche Behandlung oder Nachglättung.The invention thus provides the combination of a dry arrangement and created a calender in such a way that the moist and the cold side of the Dry arrangement, so the pressure hood facing side through the Condensation of the water from the fibrous web and through the cold sieves is generated and thereby also disadvantageously provided with strong wire marks, in the directly following calender, preferably in a hot shoe calender, on the hot calender roll is guided in the nip. The generated by the dry assembly smooth and hot paper side often needs no additional treatment or Re-smoothing.

Die Feuchte der Faserstoffbahn am Austritt aus der Trockenanordnung auf der dem Sieb zugewandten Seite ist dabei so zu optimieren, dass die entstandene Siebmarkierung durch die Nachglättung noch entfernt werden kann, indem eine sehr heiße Walzenseite auf diese Seite im Nip trifft.The moisture of the fibrous web at the exit from the drying arrangement on the Sieve-facing side is to optimize so that the resulting Sieve marking by the smoother still can be removed by a very hot roll side hits this side in the nip.

Die Vorteile der Erfindung bestehen insgesamt darin, dass die Nachteile der Zweiseitigkeit der Trockenanordnung und der sich stark ausbildenden Siebmarkierung kompensiert werden. Eine Nachkalandrierung ist nur oder insbesondere für die die Markierungen aufweisende Seite der Faserstoffbahn erforderlich, da die dem Trockenzylinder zugewandte Seite bereits einen hervorragenden Glanz und eine ausreichende Glätte hat. The advantages of the invention overall are that the disadvantages of Two-sidedness of the dry arrangement and the strongly forming Siebmarkierung be compensated. A Nachkalandrierung is only or in particular for the markers having side of the fibrous web required, since the drying cylinder facing side already a has excellent gloss and sufficient smoothness.

Anhand der Zeichnungen wird die Erfindung nachfolgend in zwei Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
ein Schema einer Trockenanordnung mit einem dieser in Laufrichtung der Faserstoffbahn 1 nachgeordneten Schuhglättwerk 13 und
Fig. 2
eine Papiermaschine mit einer Trockenanordnung gemäß Fig. 1 und einem eine Mehrzahl von Walzen aufweisenden Kalander.
Reference to the drawings, the invention will be explained in more detail below in two embodiments. Show it:
Fig. 1
a diagram of a dry arrangement with one of these downstream in the running direction of the fibrous web 1 shoe caliper 13 and
Fig. 2
a paper machine with a drying arrangement according to FIG. 1 and a calender having a plurality of rolls.

Eine Maschine zur Herstellung einer Faserstoffbahn 1 (Fig. 1) umfasst eine eine Vielzahl von Trockenzylindern 2 und Umlenkwalzen 3 umfassende Trockeneinrichtung 4. Dieser ist eine Trockenanordnung 5 mit einem beheizten Trockenzylinder 6 und einer Druckhaube 7 mit einem in dieser enthaltenden kühlenden Medium nachgeordnet. Der Trockengehalt der Faserstoffbahn 1 beträgt vor dem Eintritt in die Trockenanordnung 5 zwischen 70 und 80 %. Nach dem Verlassen der Trockenanordnung liegt er zwischen 92 und 95 %.A machine for producing a fibrous web 1 (FIG. 1) comprises a Variety of drying cylinders 2 and guide rollers 3 comprehensive Drying device 4. This is a drying assembly 5 with a heated Drying cylinder 6 and a pressure hood 7 with a containing in this arranged downstream of cooling medium. The dry content of the fibrous web 1 is before entering the drying assembly 5 between 70 and 80%. After this Leaving the drying arrangement it is between 92 and 95%.

Zusammen mit einem groben Sieb 8 und einem feinen Sieb 9 sowie einem (hier nicht dargestellten) wasserundurchlässigen Band wird die Faserstoffbahn 1 zwischen dem Trockenzylinder 6 und der Druckhaube 7 hindurchgeführt. Die Siebe 8, 9 werden über Leitwalzen 10 nach oben zur Abgabe der von ihnen aufgenommenen Feuchtigkeit abgeführt.Together with a coarse sieve 8 and a fine sieve 9 and a (not here shown) impermeable belt is the fibrous web 1 between the Drying cylinder 6 and the pressure hood 7 passed. The sieves 8, 9 are over Guide rollers 10 up to deliver the moisture absorbed by them dissipated.

Im Anschluss an die Trockenanordnung 5 wird die Faserstoffbahn 1 um Umlenkwalzen 11, 12 zu einem als Schuhglättwerk ausgebildeten Glättwerk 13 weitergeleitet. Dieser umfasst einen beheizbaren Zylinder 14, der mit einer Schuhwalze 15 einen verlängerten Nip bildet. Die Faserstoffbahn 1 wird zwischen dem Zylinder 14 und der Schuhwalze 15 derart hindurchgeführt, dass die feuchte und mit den Markierungen des Siebs 9 versehene Seite über die Mantelseite des Zylinders 14 läuft und von dem heißen Zylinder 14 geglättet wird. Zwischen den Umlenkwalzen 11, 12 kann zusätzlich noch eine der oberen Seite der Faserstoffbahn 1 zugewandte Einrichtung zum Befeuchten der Faserstoffbahn 1 angeordnet werden, wenn diese auf der oberen Seite schon einen zu hohen Trockengehalt aufweist. Nachdem die Faserstoffbahn 1 das Glättwerk 13 durchlaufen hat, wird sie in einem Wickelapparat zu einer Rolle aufgewickelt.Following the drying arrangement 5, the fibrous web 1 is in order Deflection rollers 11, 12 to form a trained as Schuhglättwerk calender 13th forwarded. This includes a heated cylinder 14, which with a Shoe roll 15 forms an elongated nip. The fibrous web 1 is between the cylinder 14 and the shoe roll 15 passed such that the wet and provided with the markings of the screen 9 on the shell side of the Cylinder 14 is running and is smoothed by the hot cylinder 14. Between Deflection rollers 11, 12 may additionally one more of the upper side of the fibrous web 1 facing device for moistening the fibrous web 1 are arranged if it already has too high a dry content on the upper side. After the fibrous web 1 has passed through the calender 13, it is in a Winding apparatus wound into a roll.

In einer ebenfalls mit einer Trockenanordnung 5 gemäß Fig. 1 ausgestatteten Papiermaschine (Fig. 2) wird aus einem Stoffauflauf 16 eine Faserstoffsuspension einem Spalt zwischen zwei Sieben 17 und 18 eines Doppelsiebformers 19 zugeführt. Auf dem Radius einer Formierwalze 20 laufen die Siebe 17, 18 keilförmig aufeinander zu und schließen die Faserstoffsuspension zwischen sich ein. Dabei erfolgt eine erste Entwässerung der Faserstoffsuspension, und es bildet sich eine Fasermatte, aus der eine Papierbahn 21 entsteht.In a likewise equipped with a drying arrangement 5 according to FIG. 1 Paper machine (FIG. 2) becomes a pulp suspension from a headbox 16 a gap between two screens 17 and 18 of a Doppelsiebformers 19 fed. On the radius of a forming roller 20, the wires 17, 18 run in a wedge shape to each other to and include the pulp suspension between them. This is a first Dewatering of the pulp suspension, and it forms a fiber mat, from the a paper web 21 is created.

An den Doppelsiebformer 19 schließt sich eine Pressenpartie 20 an. Die Pressenpartie 20 umfasst beispielsweise, wie dargestellt, drei Pressstellen 21, 22, 23. Die ersten beiden Pressstellen 21, 22 bilden eine Tandem-Nipco-Flex-Pressenpartie, in der jeweils eine Walze 23, 24 mit einer Schuhpresswalze 25, 26 zusammenwirkt.The twin-wire former 19 is followed by a press section 20. The For example, as shown, the press section 20 comprises three pressing stations 21, 22, 23. The first two pressing points 21, 22 form a tandem Nipco-Flex press section, in each case a roller 23, 24 cooperates with a shoe press roll 25, 26.

Der Pressenpartie 20 folgt in Bahnlaufrichtung eine Umlenkwalzen 27 und Trockenzylinder 28 aufweisende Trockenpartie 29. Nach der Trockenpartie 29 wird die Papierbahn 21 zwischen einem Trockenzylinder 29 und einer Druckhaube 30 einer Trockenanordnung 31 hindurchgeführt, die aufgebaut ist wie die Trockenanordnung 5 gemäß Fig. 1.The press section 20 follows in the web running direction a guide rollers 27 and Drying cylinder 28 having drying section 29. After the drying section 29 is the paper web 21 between a drying cylinder 29 and a pressure hood 30th a dry assembly 31 passed, which is constructed like the Dry arrangement 5 according to FIG. 1.

Über Umlenkwalzen gelangt die Papierbahn 21 in einen Kalander 32, in dem sie geglättet wird. Der Kalander 32 ist nach der Art des aus der EP 0 732 445 B1 bekannten Kalanders aufgebaut und umfasst lediglich Walzen, die die Papierbahn 21 einseitig auf der oberen Seite glätten, die beim Durchlaufen der Trockenanordnung 31 Siebmarkierungen erhalten hat.About guide rollers, the paper web 21 enters a calender 32, in which they is smoothed. The calender 32 is of the type disclosed in EP 0 732 445 B1 constructed calender and includes only rollers that the paper web 21st smooth on one side on the upper side when passing through the dry assembly 31 Siebmarkierungen received.

Der Kalander 32 weist einen Walzenstapel mit vier Walzen 33, 34, 35 und 36 auf. Die Walze 33 ist beheizbar, durchbiegungsgesteuert und weist eine harte Oberfläche auf. The calender 32 has a roll stack with four rolls 33, 34, 35 and 36. The Roller 33 is heatable, deflection-controlled and has a hard surface.

Die Walze 34 hat eine weiche Oberfläche. Die Walze 35 ist beheizbar und hat eine harte Mantelfläche, während die Walze 36 wieder eine weiche Mantelfläche aufweist. Auf diese Weise ergeben sich drei Arbeitsspalte, die jeweils durch eine mit einer weichen Walze zusammenwirkende harte, beheizbare Walze gebildet werden. In allen drei Arbeitsspalten wird die Papierbahn 21 einseitig auf der Markierungen aufweisenden Seite geglättet und gleichzeitig erwärmt, bis sie auf dieser Seite denselben Trocknungsgrad und Glanz sowie dieselbe Glätte erhalten hat wie die gegenüberliegende Seite.The roller 34 has a soft surface. The roller 35 is heated and has a hard surface, while the roller 36 again has a soft outer surface. In this way, there are three working columns, each one with a Soft roller co-acting hard, heatable roller can be formed. In all three work columns, the paper web 21 is one-sided on the markings smoothed side and at the same time heated until it is on this page the same degree of dryness and gloss and the same smoothness has been obtained as the opposite side.

Anschließend wird die Papierbahn 21 über weitere Umlenkrollen zu einer Wickelmaschine 37 weitergeleitet, in der sie zu einem Wickel aufgewickelt wird. Die Wickelmaschine 37 kann auch offline von der Maschine zur Herstellung der Papierbahn 21 aus der Faserstoffsuspension angeordnet sein.Subsequently, the paper web 21 via further pulleys to a Winding machine 37 forwarded, in which it is wound into a winding. The Winder 37 can also be used offline from the machine to manufacture the Paper web 21 may be arranged from the pulp suspension.

Claims (7)

Maschine zum Herstellen einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn (1, 21) aus einer Faserstoffsuspension mit einer einen beheizten Zylinder (6) und eine Druckhaube (7) umfassenden Trockenanordnung (5, 31) und einem Glättwerk (13, 32) zum Glätten der Faserstoffbahn (1, 21),
dadurch gekennzeichnet, dass die Trockenanordnung (5, 31) unmittelbar vor dem Glättwerk (13, 32) angeordnet ist.Machine for producing a paper, board, tissue or another fibrous web (1, 21) from a pulp suspension with a drying assembly (5, 31) comprising a heated cylinder (6) and a pressure hood (7) and a calender (13 , 32) for smoothing the fibrous web (1, 21),
characterized in that the drying arrangement (5, 31) is arranged immediately in front of the calendering unit (13, 32). Maschine nach Anspruch 1,
dadurch gekennzeichnet, dass zwischen der Trockenanordnung (5, 31) und dem Glättwerk (13, 32) eine Einrichtung zum Befeuchten der Faserstoffbahn (1, 21) auf der von dem Zylinder (6) abgewandten Seite angeordnet ist.Machine according to claim 1,
characterized in that between the drying arrangement (5, 31) and the calender (13, 32) a device for wetting the fibrous web (1, 21) on the side facing away from the cylinder (6) is arranged. Maschine nach Anspruch 2,
dadurch gekennzeichnet, dass die Einrichtung ein Dampfblaskasten oder ein Sprühfeuchtwerk ist.Machine according to claim 2,
characterized in that the device is a steam blower box or a spray dampening unit. Maschine nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das Glättwerk (13) einen einzigen Nip umfasst und dass eine harte und beheizbare Walze (14) des Glättwerks (13) der von dem Zylinder (6) der Trockenanordnung (5) abgewandten Seite der Faserstoffbahn (1) zugewandt ist.Machine according to one of claims 1 to 3,
characterized in that the calender (13) comprises a single nip and that a hard and heatable roller (14) of the calender (13) facing away from the cylinder (6) of the drying assembly (5) side of the fibrous web (1) faces. Maschine nach Anspruch 4,
dadurch gekennzeichnet, dass das Glättwerk ein Schuhglättwerk (13) ist. Machine according to claim 4,
characterized in that the calender is a shoe caliper (13). Maschine nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das Glättwerk (32) eine Mehrzahl von Nips umfasst und mehrere harte und beheizbare Walzen (33, 35) des Glättwerks (32) der von dem Zylinder der Trockenanordnung (31) abgewandten Seite der Faserstoffbahn (21) zugewandt sind, wobei zwischen den beheizbaren harten Walzen (33, 35) jeweils eine weiche Walze (34, 36) zwischengeschaltet ist.Machine according to one of claims 1 to 3,
characterized in that the calender (32) comprises a plurality of nips and a plurality of hard and heatable rollers (33, 35) of the calender (32) facing away from the cylinder of the drying assembly (31) side of the fibrous web (21), wherein between the heatable hard rollers (33, 35) in each case a soft roller (34, 36) is interposed. Maschine nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die Temperatur und der Anpressdruck des Zylinders (6) in der Trockenanordnung (5, 31) so gewählt sind, dass die dem Zylinder (6) zugewandte Seite der Faserstoffbahn (1, 21) den für die Aufrollung der Faserstoffbahn (1, 21) erforderlichen Glättezustand beim Durchlaufen der Trockenanordnung (5, 31) erhält.Machine according to one of claims 1 to 6,
characterized in that the temperature and the contact pressure of the cylinder (6) in the drying arrangement (5, 31) are selected so that the cylinder (6) facing side of the fibrous web (1, 21) for the reeling of the fibrous web (1 , 21) obtains the required smoothness state when passing through the drying arrangement (5, 31).
EP05101588A 2004-04-13 2005-03-02 Paper machine Not-in-force EP1586697B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017823 2004-04-13
DE102004017823A DE102004017823A1 (en) 2004-04-13 2004-04-13 paper machine

Publications (2)

Publication Number Publication Date
EP1586697A1 true EP1586697A1 (en) 2005-10-19
EP1586697B1 EP1586697B1 (en) 2010-05-26

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EP (1) EP1586697B1 (en)
AT (1) ATE469264T1 (en)
DE (2) DE102004017823A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1785524A1 (en) * 2005-11-12 2007-05-16 Voith Patent GmbH Apparatus for smoothing a fibrous web
EP2295634A3 (en) * 2009-08-07 2013-09-04 Giorgio Trani Method for forming a continuous paper web extensible in the longitudinal direction and in the transverse direction
AT17730U3 (en) * 2022-07-05 2023-02-15 Voith Patent Gmbh machine and process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008043704A1 (en) 2008-11-13 2010-05-20 Voith Patent Gmbh Fibrous material web drying and smoothing method, involves pressing fibrous material web against heated rotating cylinder on web side by circumferential band, and reducing contact pressure of band to point

Citations (4)

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Publication number Priority date Publication date Assignee Title
US6189233B1 (en) * 1997-06-03 2001-02-20 Voith Sulzer Papiermaschinen Gmbh Dryer section
WO2001014637A2 (en) * 1999-08-24 2001-03-01 Metso Paper, Inc. Method and arrangement for surface treatment of a paper and/or board web
US6207019B1 (en) * 1995-08-18 2001-03-27 Abitibi-Price, Inc. Calender hood
US20030089248A1 (en) * 2000-01-28 2003-05-15 Pekka Linnonmaa Method and device for moisturatization of a paper board web in calendering

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6207019B1 (en) * 1995-08-18 2001-03-27 Abitibi-Price, Inc. Calender hood
US6189233B1 (en) * 1997-06-03 2001-02-20 Voith Sulzer Papiermaschinen Gmbh Dryer section
WO2001014637A2 (en) * 1999-08-24 2001-03-01 Metso Paper, Inc. Method and arrangement for surface treatment of a paper and/or board web
US20030089248A1 (en) * 2000-01-28 2003-05-15 Pekka Linnonmaa Method and device for moisturatization of a paper board web in calendering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1785524A1 (en) * 2005-11-12 2007-05-16 Voith Patent GmbH Apparatus for smoothing a fibrous web
EP2295634A3 (en) * 2009-08-07 2013-09-04 Giorgio Trani Method for forming a continuous paper web extensible in the longitudinal direction and in the transverse direction
AT17730U3 (en) * 2022-07-05 2023-02-15 Voith Patent Gmbh machine and process

Also Published As

Publication number Publication date
DE502005009621D1 (en) 2010-07-08
DE102004017823A1 (en) 2005-11-03
ATE469264T1 (en) 2010-06-15
EP1586697B1 (en) 2010-05-26

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