EP1586698B1 - Drying arrangement - Google Patents
Drying arrangement Download PDFInfo
- Publication number
- EP1586698B1 EP1586698B1 EP05101590A EP05101590A EP1586698B1 EP 1586698 B1 EP1586698 B1 EP 1586698B1 EP 05101590 A EP05101590 A EP 05101590A EP 05101590 A EP05101590 A EP 05101590A EP 1586698 B1 EP1586698 B1 EP 1586698B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibrous web
- drying
- drying cylinder
- pressure
- cylinder
- 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.)
- Not-in-force
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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
-
- 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
Abstract
Description
Die Erfindung betrifft eine Anordnung in einer Maschine zur Herstellung einer Papier-, Karton-, Tissue- oder einer anderen, eine erste und eine zweite Seite aufweisenden Faserstoffbahn mit einer Trockenpartie mit einseitig die Faserstoffbahn auf der ersten Seite trocknenden Trocknungseinheiten.The invention relates to an arrangement in a machine for producing a paper, board, tissue or another, having a first and a second side fibrous web with a dryer section with one side drying the fibrous web on the first side drying units.
Aus der
In der
Bei bekannten Verfahren zur Herstellung einer Faserstoffbahn wird diese nach dem Durchlaufen einer Pressenpartie zunächst über eine Vortrockenpartie mit einer einzigen Reihe von Trockenzylinder mit jeweils einer zwischen zwei Trockenzylindern angeordneten Umlenkwalze geführt. Eine derartige einreihige Trockengruppe ist notwendig, um ein Reißen der noch ziemlich feuchten Faserstoffbahn zu vermeiden. Generell besteht in zweireihigen Trockengruppen immer eine größere Gefahr von Bahnrissen als bei einreihigen Trockengruppe, weil die Faserstoffbahn in einer zweireihigen Trockengruppe ohne Unterstützung zwischen den Trockenzylindern überführt wird. Hingegen wird die Faserstoffbahn in einer einreihigen Trockengruppe immer über einen Filz oder ein Sieb geführt.In known processes for producing a fibrous web, after passing through a press section, it is first passed over a pre-drying section with a single row of drying cylinders, each with a deflection roller arranged between two drying cylinders. Such a single-tier dryer group is necessary to avoid rupture of the still fairly wet pulp web. In general, there is always a greater risk of web breaks in double-row dryer groups than in the case of a single-row dryer group, because the fibrous web is transferred in a two-row dryer group without support between the drying cylinders. By contrast, the fibrous web is always passed over a felt or a sieve in a single-row dryer group.
Einreihige Trockenpartien haben allerdings den Nachteil, dass sie zu einer einseitigen, auf der unterschiedlich starken Trocknung der beiden Seiten der Faserstoffbahn basierenden Durchbiegung der Faserstoffbahn im nicht unter Zug stehenden Zustand führen, die sich auch noch an einem aus der Faserstoffbahn herausgeschnittenen, auf einer Ebene aufliegenden Blatt zeigt, indem dieses entweder mit seinen Rändern auf der Ebene liegt und in der Mitte hochsteht oder nur mit der Blattmitte auf der Ebene aufliegt und mit den Rändern nach oben zeigt. Papier hat die Neigung, sich zu der Seite hin durchzubiegen, die zuletzt getrocknet wurde. Dieser Effekt wird als störend empfunden; man versucht ihm dadurch zu begegnen, dass man im Bereich einreihiger Trockenpartien Befeuchtungsdüsen anordnet. Dies führt jedoch zu einer teilweisen Rückbefeuchtung der zu trocknenden Faserstoffbahn und verringert damit den Wirkungsgrad der Trocknung in der Trockenpartie. Auch durch den Einsatz eines auf beiden Seiten unterschiedlichen Dampfdrucks wird versucht, der Tendenz der Faserstoffbahn zur Durchbiegung entgegenzuwirken. Aber auch hierdurch wird keine gleichmäßige Trocknung der Faserstoffbahn auf beiden Seiten erreicht.However, single-row drying sections have the disadvantage that they lead to a one-sided, based on the different degrees of drying of the two sides of the fibrous web deflection of the fibrous web in the non-tensioning state, which also still cut out on a plane of the fibrous web, resting on one level Leaf shows by either lying with its edges on the level and standing up in the middle or resting only with the middle of the sheet on the level and with the edges facing up. Paper tends to sag to the side that was last dried. This effect is perceived as disturbing; one tries to counter him by arranging moistening nozzles in the area of single-row dryer sections. However, this leads to a partial rewetting of the fibrous web to be dried and thus reduces the efficiency of drying in the dryer section. Also, by using a different on both sides of the vapor pressure is an attempt to counteract the tendency of the fibrous web to sag. But even hereby no uniform drying of the fibrous web is achieved on both sides.
Die
Es ist die Aufgabe der Erfindung, ein Aggregat zu schaffen, mit dem sich eine gleichmäßige Trocknung der Faserstoffbahn erzielen lässt.It is the object of the invention to provide an aggregate with which a uniform drying of the fibrous web can be achieved.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass innerhalb oder nach der einreihigen Trockenpartie mindestens ein einziger, beheizter Trockenzylinder angeordnet ist, der über einen Teil seines äußeren Umfangs durch mindestens eine einen Anpressdruck gegenüber dem Trockenzylinder ausübende Druckhaube abgedeckt ist und über den die Faserstoffbahn zusammen mit mindestens einem Sieb sowie mit einer undurchlässigen Bespannung führbar ist, wobei die zweite Seite der Faserstoffbahn dem Trockenzylinder zugewandt ist.According to the invention this object is achieved in that within or after the single-row dryer section at least a single, heated drying cylinder is arranged, which is covered over a part of its outer circumference by at least one pressure against the drying cylinder performing pressure hood and on the fibrous web together with at least a sieve and with an impermeable covering can be guided, wherein the second side of the fibrous web faces the drying cylinder.
Aufgrund der Erfindung wird bei gleichzeitiger Vermeidung einer Durchbiegung der Faserstoffbahn im getrockneten Endzustand eine beidseitig gleichmäßige Trocknung der Faserstoffbahn erreicht, ohne dass diese im freien Zug geführt werden muss und ohne dass eine nachträgliche Wiederbefeuchtung der Faserstoffbahn notwendig ist. Auch der Einsatz unterschiedlich großer Dampfdrücke auf beiden Seiten der Faserstoffbahn wird durch die Erfindung vermieden. Dadurch wird auch der Einbau von Vorrichtungen zur Reduktion der Dampfleistung nicht erforderlich.Due to the invention, a simultaneous uniform drying of the fibrous web is achieved while avoiding bending of the fibrous web in the dried final state, without this must be performed in the free train and without a subsequent Wiederbefeuchtung the fibrous web is necessary. The use of different sized vapor pressures on both sides of the fibrous web is avoided by the invention. As a result, the installation of devices for reducing the steam power is not required.
Gemäß der Erfindung lässt sich sowohl ein als ganzer, beispielsweise mit Dampf, beheizter Trockenzylinder einsetzen als auch ein Trockenzylinder, der nur örtlich, insbesondere gegenüber der mindestens einen Druckhaube, beheizt ist. Dies hat den Vorteil einer besonders gezielten Energiezuführung.According to the invention, it is possible to use a drying cylinder which is heated as a whole, for example by steam, and also a drying cylinder which is heated only locally, in particular with respect to the at least one pressure hood. This has the advantage of a particularly targeted energy supply.
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.
In einer Ausführungsform der Erfindung ist vorgesehen, dass an dem Trockenzylinder mindestens ein Mittel zum Einstellen der auf die Faserstoffbahn einwirkenden Temperatur und/oder des auf die Faserstoffbahn einwirkenden Drucks vorhanden ist.In one embodiment of the invention it is provided that at least one means for adjusting the temperature acting on the fibrous web and / or the pressure acting on the fibrous web pressure is present on the drying cylinder.
Gemäß der Erfindung ist in einer Ausgestaltung vorgesehen, dass das mindestens ein Mittel zum Einstellen der Temperatur auf den Trockenzylinder, die Faserstoffbahn seibst, das mindestens eine sieb, die undurchlassige Bespannung oder auf das die Druckhaube durchströmende Fluid einwirkt.According to the invention, it is provided in one embodiment that the at least one means for adjusting the temperature on the drying cylinder, the fibrous web that is, the at least one sieve, the impermeable covering or the fluid flowing through the pressure hood acts.
Bevorzugt wirkt gemäß der Erfindung das mindestens eine Mittel zum Einstellen des Drucks auf die Anpressung des Trockenzylinders gegen die Druckhaube oder auf das die Druckhaube durchströmende Fluid ein. Das Fluid ist beispielsweise Wasser oder Wasserdampf.Preferably, according to the invention, the at least one means for adjusting the pressure acts on the pressing of the drying cylinder against the pressure hood or on the fluid flowing through the pressure hood. The fluid is for example water or water vapor.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung besteht die Druckhaube aus einzelnen, sich jeweils in Bahnlaufrichtung und/oder quer zur Bahnlaufrichtung erstreckenden und nebeneinanderliegenden Elementen oder Zellen, die jeweils einzelne Anschlüsse für die Zu- und/oder Abführung des Fluids haben.In a further advantageous embodiment of the invention, the pressure hood consists of individual, respectively in the web running direction and / or transverse to the running direction extending and adjacent elements or cells, each having individual ports for the supply and / or discharge of the fluid.
Über den Druck des Mediums oder der Medien in den nebeneinanderliegenden Elementen wird eingestellt, wie stark die undurchlässige Bespannung, die oberhalb des Gewebes mit der Bahn mitgeführt wird, gegen das Gewebe und damit auch gegen die Faserstoffbahn gedrückt wird, um auf diese Weise ebenfalls deren Eigenschaften einzustellen. Somit lassen sich über die gesamte Breite der Faserstoffbahn individuell zonenweise Eigenschaften der Faserstoffbahn einstellen, um insgesamt ein möglichst gleichmäßiges Profil zu erzielen.About the pressure of the medium or the media in the adjacent elements is set how strong the impermeable fabric, which is carried above the fabric with the web, against the fabric and thus against the fibrous web is pressed, in this way also their properties adjust. Thus, individually zonewise properties of the fibrous web can be adjusted over the entire width of the fibrous web in order to achieve as uniform a profile as possible.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung sind je Element der Druckhaube deren Parameter, insbesondere deren Druck oder Temperatur, als Stellgrößen einzeln steuerbar oder regelbar.In a further advantageous embodiment of the invention, each element of the pressure hood whose parameters, in particular their pressure or temperature, individually controllable or controllable as manipulated variables.
Gemäß der Erfindung lassen sich als Regelgrößen der Faserstoffbahn deren Feuchte, Rauhigkeit, Festigkeit und Schrumpfungsverhalten regeln.According to the invention, the controlled variables of the fibrous web are its moisture, roughness, strength and shrinkage behavior.
Mit Vorteil ist zusätzlich vorgesehen, dass unterhalb des Zylinders mindestens ein Stützelement zur Aufnahme mindestens eines Teils des Gewichts der Druckhaube angeordnet ist, sofern diese auf der Oberseite angeordnet ist.Advantageously, it is additionally provided that at least one support element for receiving at least part of the weight of the pressure hood is arranged below the cylinder, provided that it is arranged on the upper side.
Durch diese Maßnahme wird eine Entlastung des Zylinders, der Lagerzapfen und der Lager erreicht. Alle Teile des Zylinders können daher auch aus einem solchen Material hergestellt werden, das weniger verwindungssteif sein muss als bei herkömmlichen Zylindern. Auch die mechanischen Dimensionierungen des Zylinders, der Zapfen und der Lager lassen sich reduzieren. Aufgrund der geringeren Durchbiegung des Zylinders weicht dieser weniger von der idealen Zylinderform ab, wodurch die Dichtfunktion der entlang der Mantellinie liegenden Dichtung verbessert wird.By this measure, a relief of the cylinder, the bearing pin and the bearing is achieved. All parts of the cylinder can therefore be made of such a material, which must be less torsionally stiff than in conventional cylinders. The mechanical dimensions of the cylinder, the pins and the bearings can be reduced. Due to the lower deflection of the cylinder, this deviates less from the ideal cylindrical shape, whereby the sealing function of the lying along the surface line seal is improved.
Das Stützelement hat beispielsweise eine zylinderförmige Mantelfläche und liegt parallel zur Längsachse des Zylinders an diesem an. Dadurch ist eine linienförmige Unterstützung und Entlastung des Zylinders, vorzugsweise über dessen gesamte Breite, sowie der Lager des Zylinders möglich.The support member has, for example, a cylindrical surface and is parallel to the longitudinal axis of the cylinder at this. As a result, a linear support and relief of the cylinder, preferably over its entire width, and the bearing of the cylinder is possible.
Das Stützelement kann in verschiedener Weise ausgestaltet sein, insbesondere als Stützwalze, als ein Paar Stützwalzen, als eine Anzahl von über die Breite des Zylinders nebeneinander angeordneter Rollen, als Stützschuh oder Stützband. Es versteht sich, dass mehrere Formen von Stützelementen auch mit einander kombiniert werden können. Beispielsweise kann über die Stützwalzen zusätzlich ein Stützband laufen, das durch weitere Walzen abgestützt wird und den Zylinder entgegen der Richtung der Gewichtskraft des oberhalb des Zylinders lagernden Elements nach oben drückt.The support element can be designed in various ways, in particular as a support roller, as a pair of support rollers, as a number of juxtaposed rollers over the width of the cylinder, as a support shoe or support band. It is understood that several forms of support elements can also be combined with each other. By way of example, a support belt can additionally run over the support rollers, which support belt is supported by further rollers and pushes the cylinder upwards counter to the direction of the weight force of the element located above the cylinder.
Mit Vorteil ist dem einen, mit einer Druckhaube ausgestatteten Trockenzylinder ein benachbarter, zweiter, ebenfalls mit einer Druckhaube ausgestatteter Trockenzylinder nachgeordnet, zu dem die Faserstoffbahn entweder im freien Zug oder mittels einer Siebsaugwalze von einem über den ersten Trockenzylinder geführten Sieb auf ein zweites, über den zweiten Trockenzylinder geführtes Sieb überführt wird.Advantageously, the one, equipped with a printing hood dryer cylinder adjacent, second, also equipped with a pressure hood drying cylinder downstream, to which the fibrous web either in the free train or by means of a Siebsaugwalze from a guided over the first drying cylinder screen to a second, on the second drying cylinder guided sieve is transferred.
Die Erfindung bezieht sich auch auf ein Verfahren zum Trocknen einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung der Faserstoffbahn, bei dem die Faserstoffbahn zunächst durch eine Trockenpartie mit einseitig die Faserstoffbahn auf der ersten Seite trocknenden Trocknungseinheiten geführt wird.The invention also relates to a method for drying a paper, Carton, tissue or another fibrous web in a machine for producing the fibrous web, in which the fibrous web is first passed through a drying section with one side drying the fibrous web on the first side drying units.
Das Verfahren ist dadurch gekennzeichnet, dass die Faserstoffbahn anschließend zusammen mit mindestens einem Sieb sowie mit einer undurchlässigen Bespannung über mindestens einen nach der Trockenpartie angeordneten, beheizten und über einen Teil seines äußeren Umfangs durch mindestens eine einen Anpressdruck gegenüber dem Trockenzylinder ausübende Druckhaube abgedeckten Trockenzylinder geführt wird, wobei die zweite Seite der Faserstoffbahn dem Trockenzylinder zugewandt ist.The method is characterized in that the fibrous web is then guided together with at least one sieve and with an opaque covering over at least one arranged after the dryer section, heated and over part of its outer circumference by at least one contact pressure opposite the drying cylinder performing pressure hood covered drying cylinder , wherein the second side of the fibrous web faces the drying cylinder.
Die Druckhaube übt bei diesem Verfahren vorzugsweise einen zwischen 0,5 und 5 bar liegenden Druck auf den Trockenzylinder aus. Der Dampfdruck des Dampfes in dem Trockenzylinder beträgt vorzugsweise zwischen 4 und 12 bar.The pressure hood preferably exerts a pressure of between 0.5 and 5 bar on the drying cylinder in this process. The vapor pressure of the steam in the drying cylinder is preferably between 4 and 12 bar.
Das Verfahren läuft bevorzugt derart ab, dass die Faserstoffbahn vor dem Hindurchlaufen zwischen dem mindestens einen Trockenzylinder und der Druckhaube einen Trockengehalt zwischen 60 und 95 %, vorzugsweise 80 %, aufweist. Die Temperatur des Dampfes innerhalb des Trockenzylinders beträgt beispielsweise zwischen 150 und 190° C.The process preferably takes place in such a way that the fibrous web, before passing between the at least one drying cylinder and the printing hood, has a dry content of between 60 and 95%, preferably 80%. The temperature of the steam within the drying cylinder is for example between 150 and 190 ° C.
Nachfolgend wird die Erfindung in Ausführungsbeispielen anhand der Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Ansicht einer Trockenpartie und
- Fig. 2
- einen Querschnitt durch eine Trockenanordnung mit zwei jeweils eine
Druckhaube 8aufweisenden Trockenzylindern 7, zwischen denen dieFaserstoffbahn 12 überführt wird.
- Fig. 1
- a schematic view of a dryer section and
- Fig. 2
- a cross section through a drying arrangement with two each having a
pressure hood 8 havingdrying cylinders 7, between which thefibrous web 12 is transferred.
Eine Trockenanordnung (
Nachdem die Faserstoffbahn 1 durch die Trockenzylinder 3 in einem gewissen Umfang getrocknet ist, wird sie zusammen mit dem Trockensieb 4, zwischen einem Trockenzylinder 7 und einer Druckhaube 8 hindurchgeführt. Anstelle des Trockensiebes 4 kann auch ein Filz zusammen mit der Faserstoffbahn 1 zwischen dem Trockenzylinder 7 und der Druckhaube 8 hindurchgeführt werden, wenn die Faserstoffbahn 1 zuvor von dem Trockensieb 4 abgesaugt und an den Filz übergeben worden ist. Zwischen dem Trockenzylinder 7 und der Druckhaube 8 verläuft zusätzlich noch eine undurchlässige Bespannung 9. Vorzugsweise ist noch ein weiteres, feinmaschiges Sieb 14 vorhanden, das zwischen dem Trockensieb 4 und der Bespannung 9 geführt wird.After the
Die Bespannung 9 wird über Umlenkrollen 10 wieder zurückgeführt, ebenso kann auch das feinmaschige Sieb 14 zurückgeführt werden, während das grobmaschige Trockensieb 4 mit der Faserstoffbahn 1 zu den nachfolgenden Aggregaten weitergeleitet wird.The
Nach dem Trockenzylinder 7 sind entweder weitere, mit einer Druckhaube 8 ausgestattete Trockenzylinder 7 angeordnet, oder es sind konventionelle Trockenzylinder, insbesondere auch zweireihig, angeordnet, um die gewünschte Trocknung der Faserstoffbahn 1 zu erzielen.After the
In einer Ausführungsform (
Claims (13)
- Arrangement for a machine for producing a paper, board, tissue or other fibrous web (1) having a first and second side, comprising a drying section (2) with drying units (3) on one side that dry the fibrous web (1) on the first side, and having at least one heated drying cylinder (7) which, over part of its external circumference, is covered by at least one pressure hood (8) that exerts a contact pressure against the drying cylinder (7) and over which the fibrous web (1) can be guided together with at least one fabric (14) and with an item of impermeable clothing (9), the second side of the fibrous web (1) facing the drying cylinder (7)
characterized in that
the drying cylinder (7) is arranged with the pressure hood (8) within, that is to say after at least one drying unit (3), or after the drying section (2). - Arrangement according to Claim 1,
characterized in that
on the drying cylinder (7) there is at least one means of adjusting the temperature acting on the fibrous web (1) and/or the pressure acting on the fibrous web (1). - Arrangement according to Claim 2,
characterized in that
the at least one means of adjusting the temperature acts on the drying cylinder (7), on the fibrous web (1) itself, on the at least one fabric (14), on the item of impermeable clothing (9) or on the fluid flowing through the pressure hood (8). - Arrangement according to Claim 2 or 3,
characterized in that
the at least one means of adjusting the pressure acts on the pressure of the drying cylinder (7) against the pressure hood (8) or on the fluid flowing through the pressure hood (8). - Arrangement according to Claim 4,
characterized in that
the fluid is water or steam. - Arrangement according to one of Claims 1 to 5,
characterized in that
the pressure hood (8) comprises individual elements or cells which respectively extend in the web running direction and/or transversely with respect to the web running direction and lie beside one another and which in each case have individual connections for the supply and/or discharge of the fluid. - Arrangement according to Claim 6,
characterized in that
for each element or cell, parameters of the fluid, in particular pressure or temperature, can be controlled or regulated individually as manipulated variables. - Arrangement according to one of Claims 1 to 7,
characterized in that
the moisture, roughness, strength and shrinkage behaviour of the fibrous web (1) can be regulated as controlled variables. - Arrangement according to one of Claims 1 to 8,
characterized in that
the fibrous web (1) can be transferred from the at least one drying cylinder (7) equipped with a pressure hood (8) to an adjacent, second drying cylinder (11) either in a free draw or by means of a fabric-suction roll (13) from a fabric (14) guided over the first drying cylinder (7) to a second fabric (15) guided over the second drying cylinder (11). - Process for drying a paper, board, tissue or other fibrous web (1) in an arrangement according to one of Claims 1 to 9, in which the fibrous web (1) is initially guided through a drying section (2) with drying units (3) on one side that dry the fibrous web (1) on the first side, in which the fibrous web (1), together with at least one fabric (14) and with an item of impermeable clothing (9), is subsequently guided over at least one drying cylinder (7) which is arranged after the drying section (2), is heated and is covered over part of its external circumference by at least one pressure hood (8) that exerts a contact pressure against the drying cylinder (7), the second side of the fibrous web (1) facing the drying cylinder (7).
- Process according to Claim 10,
characterized in that
the pressure hood (8, 12) presses against the drying cylinder (7, 11), with a pressure lying between 0.5 and 5 bar. - Process according to Claim 10 or 11,
characterized in that
the steam pressure of the steam in the drying cylinder (7, 11) is between 4 and 12 bar. - Process according to one of Claims 10 to 12,
characterized in that
the fibrous web (1), before passing through between the at least one drying cylinder (7, 11) and the pressure hood (8, 12), has a dryness between 60 and 95%, preferably between 80%.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004017807A DE102004017807A1 (en) | 2004-04-13 | 2004-04-13 | dry arrangement |
DE102004017807 | 2004-04-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1586698A1 EP1586698A1 (en) | 2005-10-19 |
EP1586698B1 true EP1586698B1 (en) | 2010-05-26 |
Family
ID=34938859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05101590A Not-in-force EP1586698B1 (en) | 2004-04-13 | 2005-03-02 | Drying arrangement |
Country Status (3)
Country | Link |
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EP (1) | EP1586698B1 (en) |
AT (1) | ATE469265T1 (en) |
DE (2) | DE102004017807A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2141283A3 (en) * | 2008-07-02 | 2012-04-25 | Voith Patent GmbH | Drying belt for a condensation drying device |
DE102010029615A1 (en) | 2010-06-02 | 2011-12-08 | Voith Patent Gmbh | Method for producing a coated, multilayer fibrous web |
DE102010029617A1 (en) | 2010-06-02 | 2011-12-08 | Voith Patent Gmbh | Method for producing a coated, multilayer fibrous web |
DE102010030081A1 (en) | 2010-06-15 | 2011-12-15 | Voith Patent Gmbh | Process for producing a coated fibrous web |
CN103189568A (en) | 2010-11-01 | 2013-07-03 | 美卓造纸机械公司 | Process for producing multilayer fiber web |
EP2549013B1 (en) | 2011-07-21 | 2018-01-31 | Valmet Technologies, Inc. | Process and arrangement for producing a fiber web |
EP2722438A1 (en) * | 2012-10-18 | 2014-04-23 | Metso Paper Inc. | Method and apparatus for drying a fibrous web |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI105935B (en) * | 1996-12-03 | 2000-10-31 | Valmet Corp | Method for drying paper and dry end of paper machine |
FI104001B1 (en) * | 1998-06-26 | 1999-10-29 | Valmet Corp | drying Lot |
-
2004
- 2004-04-13 DE DE102004017807A patent/DE102004017807A1/en not_active Withdrawn
-
2005
- 2005-03-02 AT AT05101590T patent/ATE469265T1/en active
- 2005-03-02 EP EP05101590A patent/EP1586698B1/en not_active Not-in-force
- 2005-03-02 DE DE502005009622T patent/DE502005009622D1/en active Active
Also Published As
Publication number | Publication date |
---|---|
ATE469265T1 (en) | 2010-06-15 |
DE502005009622D1 (en) | 2010-07-08 |
EP1586698A1 (en) | 2005-10-19 |
DE102004017807A1 (en) | 2005-10-27 |
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