EP0427218A2 - Système de séchage - Google Patents

Système de séchage Download PDF

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Publication number
EP0427218A2
EP0427218A2 EP90121252A EP90121252A EP0427218A2 EP 0427218 A2 EP0427218 A2 EP 0427218A2 EP 90121252 A EP90121252 A EP 90121252A EP 90121252 A EP90121252 A EP 90121252A EP 0427218 A2 EP0427218 A2 EP 0427218A2
Authority
EP
European Patent Office
Prior art keywords
cylinders
air
drying device
jacket
rollers
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
EP90121252A
Other languages
German (de)
English (en)
Other versions
EP0427218A3 (en
EP0427218B1 (fr
Inventor
Erwin Brunnmair
Alfred Luttenberger
Reinhard Dr. Pinter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Sulzer Papiermaschinen GmbH
Original Assignee
Sulzer Escher Wyss GmbH
Escher Wyss GmbH
Voith Sulzer Papiermaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer Escher Wyss GmbH, Escher Wyss GmbH, Voith Sulzer Papiermaschinen GmbH filed Critical Sulzer Escher Wyss GmbH
Publication of EP0427218A2 publication Critical patent/EP0427218A2/fr
Publication of EP0427218A3 publication Critical patent/EP0427218A3/de
Application granted granted Critical
Publication of EP0427218B1 publication Critical patent/EP0427218B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to a drying device for high-speed moving material, in particular paper or fibrous webs, which expediently consists of a series of steam-heated cylinders, in particular essentially on the same horizontal plane, and expediently a series of unheated cylinders, approximately in the spaces between these cylinders , in particular also in a deflection roller mounted either below or above the above-mentioned horizontal plane, the jacket of which is perforated and / or provided with grooves, suction of air from these deflection rollers being provided and these cylinders and the deflection rollers being covered with a screen belt are equipped and the web of material on the cylinders is between their jacket and the screen belt or the like, while on the deflection rollers the screen belt comes to rest on the jacket of the rollers and the web of material lies outside on the screen belt.
  • DE-OS 38 28 742 shows, inter alia, a drying group of a paper machine multi-cylinder dryer of the type described in the introduction, in which both deflection rollers, which correspond to the aforementioned guide rollers, and combined blower suction boxes arranged above the deflection rollers are connected to a vacuum generator. These blow-suction boxes are also connected to a pressure generator and have side flanks with nozzle openings through which air is blown under pressure against the screen belt and paper web runs freely guided between the cylinders and the deflection rollers.
  • somewhat improved drying is achieved through the drying wire because, in particular with regard to the negative pressure applied to the inside of the perforated jacket of the deflecting rollers, the moisture removal is improved.
  • this improvement does not yet adequately meet practical requirements.
  • the loss of drying capacity due to the loss of an entire row of cylinders cannot be compensated for by far.
  • the invention is based on a new concept for a high-speed multi-cylinder dryer section which, on the one hand, ensures the good and safe guidance of the material, in particular the paper web, and on the other hand avoids the disadvantage of the unsatisfactory drying performance.
  • the goals set are achieved according to the invention, which is based on the drying device slid at the outset, by the arrangement of an air bubble device which at least partially, for example entirely, wraps around the jacket of the deflecting roller touched by the screen belt or the like with movement play.
  • Movement play is understood to mean a small distance between the blow-out surface of this laft-blowing device facing the jacket of the deflecting roller, which just barely allows the screen belt and the material web in question to move through in the gap between the air-blowing device and the deflecting roller moving with the screen belt.
  • the air bubble device is preferably provided with a lifting device, so that there is no blockage of the intermediate space when the paper web is fed or when it is torn off.
  • the lifting device can lift the air bladder device on one or both sides completely or partially from the cylinder surface. There should therefore be a gap which is just sufficient to bring the blowing power as unimpeded as possible to the material web moving past with the screen belt, in order to support the suction work through the openings or in the grooves of the deflecting roller accordingly.
  • a strong drying effect is achieved, which can partially or completely compensate for the loss of a row of cylinders.
  • the latter is, according to the embodiment of the invention, by arranging a flow installation, in particular airflow and thus material web-guiding, in the intermediate spaces between the jackets of the cylinder (s) and the deflection roller (s) on the part of the jacket of the deflection roller which is not touched by the screen belt significantly improved.
  • Leadership and drying performance can be additionally improved according to the invention if the flow installation has the completely closed side flanks facing the respectively adjacent belt section and has an undivided interior which is connected to a vacuum generator.
  • the guiding effect is additionally improved according to the invention if the distance between the side flanks of the flow installation and the respectively adjacent sieve belt strand in the direction of its movement increases, in particular steadily.
  • the resulting diffuser-like expansion of the air flow in the area of the free material web or fabric belt runs means that the air flows in the area of the freely moving runs or free trains of the fabric belt or fabric material can be mastered and good guidance of the material web in to ensure this area, in particular to largely avoid lifting them off the screen belt.
  • a further improvement according to the invention can act in the same sense, which consists in the fact that the flow installation is at a smaller distance from the wire belt strand running onto the deflecting roller than from the wire belt strand running off this roller.
  • the sieve belt it may be expedient to limit the air entrained by the sieve belt in order to avoid excess pressure and thus local lifting of the material web; This can be achieved in that in the region of the back facing away from the jacket of the associated deflecting roller, in particular the upper side, of the flow installation, an air separating device or seal extending into the gap between the flow installation and the up and / or down running belt section is provided.
  • the suction effect of the deflection rollers can be further increased according to the invention if the flow installation on the side facing the jacket of the associated deflection roller is sealed at its edges with respect to this jacket.
  • Material web guidance or suction effect and drying effect can additionally be made more favorable according to the invention if the deflecting roller (s) is or are displaced from the plane of symmetry of the intermediate spaces of the cylinders to the wire belt run running onto the deflecting roller (s).
  • a further increase in the drying capacity can be achieved if (one) further air blower devices or (a) blow box are provided on the steam-heated cylinders, which also have the introduction of fresh air into the drying device and advantageously have (one) air injection opening (s) that is or are located in the space between adjacent cylinders on the side remote from the associated deflecting roller near one or both cylinders.
  • the steam-heated cylinders are designed as high-performance steel cylinders according to AT-PS 387 248 or the Austrian patent application A 1512/87.
  • the air-blowing devices for the deflecting rollers are connected to an air-guiding circuit system which is separate from the rest of the ventilation system of the drying device.
  • a common ventilation system is provided for the drying device, the interior space (s) of the flow installation (s) and the deflection roller (s) together on a vacuum generator are connected and if the air bubble device (s) and, if appropriate, the further air bubble device (s) are fed together via an air heating device.
  • the diameter of the unheated deflection rollers connected to a vacuum generator is smaller than the diameter of the steam-heated cylinders, e.g. the diameter of the deflecting rollers is approximately 1000 - 1500 mm, the diameter of these cylinders is approximately 1800 mm.
  • FIG. 1 shows a drying group with an air-blowing device according to the invention and a flow installation according to the invention, the steam-heated cylinders being arranged higher than the deflecting rollers.
  • Fig. 2 shows a similar drying device, but the arrangement of the cylinders and the deflecting rollers is reversed.
  • 3 illustrates another embodiment variant with an additional air bubble device and a further variant of the air circuit.
  • FIGS. 4 and 5 show configurations in which only the air bubble device according to the invention or one with an additional air bubble device are provided in the upper region of the steam-heated cylinders.
  • FIG. 6 and 7 show details in the area of the deflecting rollers on an enlarged scale compared to the aforementioned figures, namely FIG. 6 in front view, FIG. 7 as section A-A through FIG. 6.
  • a first dryer group of the dryer section of a paper machine or a part of such a group. It's about single-belt guide groups.
  • the press section of the paper machine for practical versions.
  • the material or paper web is expediently conveyed from the press section to the dryer section in a closed guide.
  • one or more single-wire guide groups - as shown below - can be provided in the dryer section, which can be followed by one or more two-wire guide groups if necessary.
  • a drying group or drying device for high-speed moving material, in particular paper or fibrous webs is first described, specifically with an arrangement with drying cylinders 3 at the top and deflection rollers 2 at the bottom; in a corresponding form, however, it also applies to the reverse arrangement according to FIG. 2 with drying cylinders 3 arranged at the bottom, whereby it may be expedient to move part of the drying groups with the cylinders on top according to FIG. 1 and a part with cylinders below within a drying section Fig. 2 execute.
  • a cylinder heated with a heat transfer medium, in particular steam, for paper machines has a metallic core cylinder provided on its surface with a number of grooves, preferably parallel to one another and optionally, in particular partly, parallel to its axis, and the cylinder is heated by Supply of the heat transfer medium, in particular steam, into the grooves.
  • the grooves are, for example, machined into the surface of the core cylinder, and a metallic cylindrical outer jacket is drawn onto the core cylinder in a metal-contacting manner, in particular shrink-fitted, with the formation of pressure spaces between the latter and the core cylinder, which can be welded to the core cylinder at its edges, and that Grooves have a continuously - preferably uniformly - changing cross-section over at least part of their length.
  • the lower deflections of the screen belt 15 or the material or paper web 14 are not formed by drying cylinders, as is usually the case, but deflection or guide rollers 2, the diameter of which is somewhat smaller than that of the drying cylinder 3. Typical dimensions are, for example, 1800 mm diameter for the drying cylinder 3 and 1000 - 1500 mm diameter for the deflection rollers 2 below.
  • These deflection rollers are provided with a suction device 12 and have a perforated, preferably perforated jacket 13, so that the inside of the roller 2 A vacuum or negative pressure is created and thus the material or paper web 14 is held in its lower loop 14 'by this negative pressure on the deflecting roller.
  • the perforation of the deflecting rollers 2 can be distributed unevenly over their outer surface.
  • a larger number of perforation openings or bores can be present in the area of the material web edge than in the central area of the web or of the roll shell.
  • an air blowing device 1 is arranged, which causes intensive drying in this area by inflating hot air onto the material or paper web 14, 14 '. This makes it compared to a conventional dryer section - because of the missing Heating of the rollers 2 - reduced drying capacity compensated, or even increases compared to a conventional dryer section can be achieved.
  • the material web 14 is guided in the entire area of the drying group through the endless, individual sieve belt 15 guided in loops in succession around the cylinders 3 and the deflection rollers 2.
  • the shrinkage of the material web, in particular paper web 14, takes place increasingly in the part in which the evaporation of the water takes place. This applies in particular to that free train 14 ⁇ which is then passed through a drying cylinder 3 until it hits the next deflecting roller 2. In order to reduce the shrinkage in this area, it is favorable to run this free train 14 ⁇ particularly short, while the free train 14 ⁇ 'following the deflection roller 3' can be somewhat longer.
  • a flow installation 4 is provided above the perforated deflecting rollers 2, which essentially serves two purposes: on the one hand, this covers part of the circumference of the perforated deflecting roller 2 that is not in contact with the material web or paper and thus prevents the increased intake of air in this area.
  • This has the advantage that the amount of air sucked in is greatly reduced and that the vacuum or negative pressure in the suction deflecting rollers 2 can be maintained with smaller amounts of air sucked out, which in particular brings energetic advantages.
  • seals 8,8 ' are also arranged in order to prevent the ingress of air. This can be done either by scraper-like sealing strips, by brushes or similar sealing devices.
  • the second purpose of this flow installation 4 relates to the control of the air flows in the area of the free material or paper runs 14 Textil, 14 ⁇ ', (trains) and thus the guidance of the material, in particular paper web 14 in this area.
  • the distances between the flow installation 4, that is, between its completely closed side flanks 4 ', 4 ⁇ and the sieve belt 15 on the downwardly running and on the upwardly running free run or train 15', 15 ⁇ are selected to be different sizes .
  • the flow installation 4 is not carried out parallel to the dryer fabric 15 or 15 'or 15,, but in an oblique arrangement, so that a diffuser-like expansion for the air flow occurs.
  • the arrangement of a seal 9 against the sieve belt 15' is advantageously provided for some applications.
  • This arrangement makes it possible to limit the air entrained by the sieve belt 15, 15 ', so that in that part where that Screen belt and the material web run onto the lower deflection roller 2, no overpressure results; such an overpressure could otherwise lead to a local lifting of the material web 14. That favorable effect is further supported by the fact that part of the air is sucked into the part of the deflecting roller 2 that remains free of the screen belt 15 or the material web 14, so that no disruptive excess pressure can build up.
  • suction from the interior of the flow installation 4 is also provided according to the invention.
  • the flow installation has an undivided interior, which is connected to a vacuum generator, in particular a fan.
  • a vacuum generator in particular a fan.
  • the false air passing between the flow installation 4 and the deflection roller 2 can also be discharged, or a simpler design of the seals 8, 8 'is possible, since appropriate leakage air quantities can be permitted.
  • the entire flow installation 4 serves as a suction box.
  • a combination of the air-blowing device 1 and the flow installation 4 on the suction deflecting roller 2 is preferred.
  • the arrangement of the roller 2 is advantageous not eccentric or shifted below the middle of the space between two drying cylinders 3.
  • the boundary walls 4', 4 'of the flow installation 4 do not run parallel, but slightly obliquely to the dryer 15', 15 'in these areas.
  • the seal 8.8 'between the flow installation 4 and deflection roller 2 is recommended.
  • the Air separation device 9 on the upper edge of the flow installation 4 favors the material web guidance.
  • An additional suction 10 of air from the flow installation 4 see also FIG.
  • Fig. 2 schematically shows a drying group which is constructed essentially like the one shown in Fig. 1, but with an arrangement rotated by 1800, i.e. with a row of cylinders 3, the level of which is below the level of the row of deflection rollers 2.
  • the flow internals 4 and the bladder devices 1 are swapped accordingly in their position.
  • Gif 2 also reveals the air cycle, for which reference is made to the lines ending with arrows, which indicates the air movements.
  • 19 is an air heater
  • 20, 21, 23 and 24 are fans
  • 22 is a heat exchanger.
  • the air bubble devices 1 for the deflecting rollers 2 are connected to an air-guiding circuit system which is separate from the rest of the ventilation system of the drying device.
  • FIG. 3 shows a further variant, in particular with regard to the air flow, the direction of which was again illustrated by arrows.
  • An additional air bubble device 11 on a steam-heated cylinder 3 is provided here.
  • Fans 20, 23 and 24 are again available, which are designed as suction or pressure blowers, depending on their task.
  • a common ventilation system is provided for the drying device, the interior space (s) of the flow installation (s) 4 and the deflection roller (s) 2 being connected together to a vacuum generator 24 and the air blower device (s) ) 1 and optionally the further air bubble device (s) 11 are fed together via an air heating device 19.
  • FIG. 4 and 5 show simplified arrangements, especially the flow installation is missing.
  • the air bubble devices 1 are, however, provided in both arrangements.
  • the other existing parts of the system were given the same reference numerals as the previous example illustrations.
  • additional drying devices 18 can be arranged in the area of the upper cylinders 3, such as special blow boxes, which reinforce the drying of the material or paper web by blowing hot air through the screen belt 15. These blow boxes at the top also serve to introduce the fresh air into the dry patient.
  • At 26 is also a suction fan, at 27 a pressure fan. Arrows again show the air movement.
  • Fig. 6 shows an enlarged section of the dryer section.
  • the seal 9 against the screen belt and the seals 8,8 'against the deflection roller 2 are shown by way of example.
  • Fig. 7 illustrates the section A-A according to Fig. 6.
  • the flow installation 4 with the suction 10 and the seals 8 ' is shown schematically.

Landscapes

  • Drying Of Solid Materials (AREA)
  • Paper (AREA)
  • Details Of Garments (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
EP19900121252 1989-11-10 1990-11-07 Système de séchage Expired - Lifetime EP0427218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2581/89 1989-11-10
AT258189A AT394063B (de) 1989-11-10 1989-11-10 Trocknungsvorrichtung

Publications (3)

Publication Number Publication Date
EP0427218A2 true EP0427218A2 (fr) 1991-05-15
EP0427218A3 EP0427218A3 (en) 1991-10-23
EP0427218B1 EP0427218B1 (fr) 1995-08-09

Family

ID=3536865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900121252 Expired - Lifetime EP0427218B1 (fr) 1989-11-10 1990-11-07 Système de séchage

Country Status (5)

Country Link
EP (1) EP0427218B1 (fr)
AT (1) AT394063B (fr)
DE (1) DE59009496D1 (fr)
ES (1) ES2076278T3 (fr)
NO (1) NO179264C (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999018287A1 (fr) * 1997-10-03 1999-04-15 Valmet Corporation Procede et dispositif destines au train de sechage d'une machine de fabrication de papier et/ou de carton
EP0911445A2 (fr) * 1997-09-29 1999-04-28 Voith Sulzer Papiermaschinen Gesellschaft mbH Appareil pour la fabrication ou le traitement d'un matériau en bande
US6003241A (en) * 1997-04-22 1999-12-21 Valmet Corporation Drying unit and dryer section that makes use of such units
US6098309A (en) * 1997-09-29 2000-08-08 Voith Sulzer Papiertechnik Patent Gmbh Machine and process for manufacturing or treating a material web
US6128833A (en) * 1995-04-12 2000-10-10 Valmet Corporation Dryer-section concept and method in the drying of a paper/board web
EP1593776A1 (fr) 2004-05-07 2005-11-09 Voith Paper Patent GmbH Section de séchage pour machine pour fabriquer une bande de matière fibreuse
EP1780331A1 (fr) 2005-10-28 2007-05-02 Voith Patent GmbH Ensemble de séchage
WO2011003746A3 (fr) * 2009-07-10 2012-06-07 Voith Patent Gmbh Dispositif pour fabriquer une bande de matériau

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6101735A (en) * 1997-04-22 2000-08-15 Valmet Corporation Dryer section in a paper machine in which impingement and/or ventilation hoods are used
FI104000B1 (fi) * 1998-04-03 1999-10-29 Valmet Corp Telan, sylinterin tai vastaavan ympärille sovitettu päällepuhallusjärjestelmä paperikoneen tai vastaavan kuivatusosassa
CZ301096B6 (cs) * 2004-06-24 2009-11-04 Konfršt@Václav Elektrický rotacní stroj

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2355397A1 (de) * 1972-11-13 1974-06-12 Valmet Oy Trockenzylindergruppe in einem mehrzylindertrockner fuer eine materialbahn, insbesondere fuer papier
DE2458455A1 (de) * 1973-12-10 1975-06-12 Commw Scient Ind Res Org Vorrichtung zum trocknen einer sich bewegenden bahn
US4000035A (en) * 1973-05-10 1976-12-28 J. M. Voith Gmbh Machine for drying webs, including suction and heat-contact cylinders
WO1983000514A1 (fr) * 1981-08-13 1983-02-17 Hauser, Ludwig Groupe de cylindres de sechage
AT371165B (de) * 1981-02-11 1983-06-10 Andritz Ag Maschf Vorrichtung zum trocknen von materialbahnen, insbesondere papierbahnen
EP0130158A2 (fr) * 1983-05-30 1985-01-02 Fläkt Aktiebolag Dispositif d'étanchéité dans un séchoir à cylindres
US4677762A (en) * 1984-12-20 1987-07-07 Valmet-Dominion Inc. Drier felting arrangement
WO1987006283A1 (fr) * 1986-04-08 1987-10-22 Beloit Corporation Boite de soufflage pour un secheur
DE3819391A1 (de) * 1987-06-15 1989-01-05 Escher Wyss Gmbh Vorrichtung mit einer mit einem waermetraegermedium beheizten arbeitsflaeche
WO1990012151A1 (fr) * 1989-04-01 1990-10-18 J.M. Voith Gmbh Dispositif de sechage a toile unique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI54627C (fi) * 1977-04-04 1979-01-10 Valmet Oy Foerfarande och anordning i torkpartiet i en pappersmaskin
WO1983002997A1 (fr) * 1982-02-27 1983-09-01 Frauenfeld, Martin Dispositif accumulateur pour transfert thermique
DE3328548A1 (de) * 1983-08-08 1985-02-21 Kraftanlagen Ag, 6900 Heidelberg Speichermaterial fuer waermeuebertragung
FI80491C (fi) * 1987-09-02 1990-06-11 Valmet Paper Machinery Inc Foerfarande och torkningsgrupp i maongcylindertorken av en pappersmaskin.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2355397A1 (de) * 1972-11-13 1974-06-12 Valmet Oy Trockenzylindergruppe in einem mehrzylindertrockner fuer eine materialbahn, insbesondere fuer papier
US4000035A (en) * 1973-05-10 1976-12-28 J. M. Voith Gmbh Machine for drying webs, including suction and heat-contact cylinders
DE2458455A1 (de) * 1973-12-10 1975-06-12 Commw Scient Ind Res Org Vorrichtung zum trocknen einer sich bewegenden bahn
AT371165B (de) * 1981-02-11 1983-06-10 Andritz Ag Maschf Vorrichtung zum trocknen von materialbahnen, insbesondere papierbahnen
WO1983000514A1 (fr) * 1981-08-13 1983-02-17 Hauser, Ludwig Groupe de cylindres de sechage
EP0130158A2 (fr) * 1983-05-30 1985-01-02 Fläkt Aktiebolag Dispositif d'étanchéité dans un séchoir à cylindres
US4677762A (en) * 1984-12-20 1987-07-07 Valmet-Dominion Inc. Drier felting arrangement
WO1987006283A1 (fr) * 1986-04-08 1987-10-22 Beloit Corporation Boite de soufflage pour un secheur
DE3819391A1 (de) * 1987-06-15 1989-01-05 Escher Wyss Gmbh Vorrichtung mit einer mit einem waermetraegermedium beheizten arbeitsflaeche
WO1990012151A1 (fr) * 1989-04-01 1990-10-18 J.M. Voith Gmbh Dispositif de sechage a toile unique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128833A (en) * 1995-04-12 2000-10-10 Valmet Corporation Dryer-section concept and method in the drying of a paper/board web
US6003241A (en) * 1997-04-22 1999-12-21 Valmet Corporation Drying unit and dryer section that makes use of such units
EP0911445A2 (fr) * 1997-09-29 1999-04-28 Voith Sulzer Papiermaschinen Gesellschaft mbH Appareil pour la fabrication ou le traitement d'un matériau en bande
EP0911445A3 (fr) * 1997-09-29 2000-04-26 Voith Sulzer Papiertechnik Patent GmbH Appareil pour la fabrication ou le traitement d'un matériau en bande
US6098309A (en) * 1997-09-29 2000-08-08 Voith Sulzer Papiertechnik Patent Gmbh Machine and process for manufacturing or treating a material web
WO1999018287A1 (fr) * 1997-10-03 1999-04-15 Valmet Corporation Procede et dispositif destines au train de sechage d'une machine de fabrication de papier et/ou de carton
US6418639B1 (en) 1997-10-03 2002-07-16 Metso Paper, Inc. Method and device in the dryer section of a paper/board machine
AT410949B (de) * 1997-10-03 2003-08-25 Valmet Corp Verfahren und vorrichtung in der trockenpartie von einer papier-/kartonmaschine
EP1593776A1 (fr) 2004-05-07 2005-11-09 Voith Paper Patent GmbH Section de séchage pour machine pour fabriquer une bande de matière fibreuse
EP1780331A1 (fr) 2005-10-28 2007-05-02 Voith Patent GmbH Ensemble de séchage
WO2011003746A3 (fr) * 2009-07-10 2012-06-07 Voith Patent Gmbh Dispositif pour fabriquer une bande de matériau

Also Published As

Publication number Publication date
ES2076278T3 (es) 1995-11-01
NO904886D0 (no) 1990-11-09
NO179264B (no) 1996-05-28
AT394063B (de) 1992-01-27
DE59009496D1 (de) 1995-09-14
EP0427218A3 (en) 1991-10-23
EP0427218B1 (fr) 1995-08-09
ATA258189A (de) 1991-07-15
NO904886L (no) 1991-05-13
NO179264C (no) 1996-09-04

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DE19634914A1 (de) Maschine zur Herstellung einer Materialbahn

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