EP0427217B1 - Système de séchage - Google Patents

Système de séchage Download PDF

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Publication number
EP0427217B1
EP0427217B1 EP90121251A EP90121251A EP0427217B1 EP 0427217 B1 EP0427217 B1 EP 0427217B1 EP 90121251 A EP90121251 A EP 90121251A EP 90121251 A EP90121251 A EP 90121251A EP 0427217 B1 EP0427217 B1 EP 0427217B1
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EP
European Patent Office
Prior art keywords
cylinders
air
screen belt
drying apparatus
concerned
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.)
Expired - Lifetime
Application number
EP90121251A
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German (de)
English (en)
Other versions
EP0427217A3 (en
EP0427217A2 (fr
Inventor
Erwin Brunnmair
Reinhard Dr. Pinter
Alfred Luttenberger
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
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 Voith Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0427217A2 publication Critical patent/EP0427217A2/fr
Publication of EP0427217A3 publication Critical patent/EP0427217A3/de
Application granted granted Critical
Publication of EP0427217B1 publication Critical patent/EP0427217B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a drying device according to the preamble of claim 1.
  • DE-OS 38 28 743 shows, among other things, 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 or pulls freely guided between the cylinders and the deflecting 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 at Drying performance 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 entire interior of the flow installation is used for the suction power, that is no longer for pressurized air
  • a considerable additional suction power is provided with less effort - no compressed air source is required for the flow installation, which does not only relate to the total drying capacity, but also has a favorable effect on the management of material and screen belt.
  • the guiding effect is additionally improved according to the invention if the distance of the side flanks of the flow installation from the respectively adjacent sieve belt strand increases, in particular continuously, seen in its direction of movement.
  • 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 deflection roller than from the wire belt strand running off this roller.
  • the air entrained by the sieve belt is limited to avoid excess pressure and thus a local lifting of the material web; This is 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 and thus the drying effect can be further enhanced 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, according to the invention, also be made more favorable if the deflecting roller (s) is or are displaced from the plane of symmetry of the spaces between the cylinders to the screen belt run running onto the deflecting roller (s).
  • a further improvement in the drying performance and the screen belt, in particular material web guidance is achieved in that an air-blowing device is arranged on the side of the deflecting rollers opposite the flow installation, which air bubble device touches at least partially the jacket of the deflecting roller touched by the screen belt or the like , for example completely wrapped around with movement play.
  • Movement play is understood to mean a small distance between the blow-out surface of this air-blowing device facing the jacket of the deflection roller, which just barely allows the sieve belt and the material webs in question to move through in the gap between the air-blowing device and the deflection roller moving with the sieve 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 being carried out 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. So there should be just a sufficient gap, but unnecessary play or too large a distance should be avoided in order to bring the blowing performance as unimpeded as possible to the material web moving past with the sieve belt, in order to suction through the openings or in the Support the grooves of the deflection roller accordingly.
  • a strong drying effect is achieved, through which the loss of a row of cylinders can be fully or partially compensated for. This also results in a good and safe guidance of the material web in the area of the deflecting roller.
  • 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 located in the space between adjacent cylinders on the side remote from the associated deflecting roller near one or both cylinders.
  • the design of the steam-heated cylinders as high-performance steel cylinders according to AT-PS 387 248 also has an effect on increasing the drying capacity.
  • various types of guiding the air in the system can be favorable: According to the invention, it can be expedient if the air-blowing devices for the deflecting rollers are connected to an air-guiding circuit system which is provided by the remaining ventilation system of the drying device is separated. In other cases, it may also be better if, according to the invention, 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 dryer group with an air bubble device according to the invention and a flow installation according to the invention, wherein the steam-heated cylinders are arranged higher than the deflection rollers.
  • Fig. 2 shows a similar drying device, but the arrangement of the cylinders and the deflecting rollers is reversed.
  • a variant of the air circuit is also shown here.
  • 3 illustrates another embodiment variant with an additional air bladder device and a further variant of the air circuit.
  • Fig. 4 shows a drying group in which the flow internals, but not the air bubble devices, are provided.
  • 5 and 6 show details in the area of the deflecting rollers on an enlarged scale compared to the aforementioned figures, namely FIG. 5 in front view, FIG. 6 as section A-A according to FIG. 5.
  • a first dryer group of the dryer section of a paper machine or a part of such a group. It is 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 conveyor guide groups - as shown below - can be provided in the dryer section, followed by one or more two-wire conveyor guide groups (s) if required.
  • a drying group or drying device for material, in particular paper or fibrous webs moving at high speed 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 for paper machines heated with a heat transfer medium, in particular steam has a metallic core cylinder provided on its surface with a number of preferably parallel to one another and possibly, in particular partially, grooves 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, worked 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-fit, with the formation of pressure spaces between it 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 e.g. 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 a vacuum or Vacuum arises and thus the material or paper web 14 is held in its lower loop 14 'by this vacuum on the deflection 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 region of the edge of the material web than in the central region of the web or of the roll shell.
  • An air-blowing device 1 is arranged below these deflecting rollers, which causes intensive drying in this area by blowing hot air onto the material or paper web 14, 14 '. This compensates for the reduced drying capacity compared to a conventional dryer section - due to the lack of heating of the rollers 2 - or even increases compared to a conventional dryer section.
  • the material web 14 is guided in the entire area of the drying group through the endless, individual screen belt 15, which is guided in loops one after the other 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 expedient to make this free pull 14 ′′ particularly short, while the free pull 14 ′′ ′′ following the deflecting roller 3 can be somewhat longer.
  • a flow installation 4 is provided above the perforated deflection rollers 2, which essentially serves two purposes: On the one hand, this covers part of the circumference of the perforated deflection roller 2 that is not in contact with the material web or paper, thus preventing 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 arranged between the aforementioned flow installation 4 and the suction deflection rollers 2 in order to prevent air from penetrating. This can be done either with scraper-like sealing strips or with 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 ′′, 14 ′′ ′′ (trains) and thus the guidance of the material, in particular paper web 14 in this area.
  • 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.
  • a seal 9 against the sieve belt 15' e.g. in the form of a brush band or an elastic seal.
  • This arrangement makes it possible to limit the air entrained by the sieve belt 15, 15 ', so that there is no overpressure in that part where the sieve belt and the material web run onto the lower deflection roller 2; 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 a 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.
  • the false air passing between the flow installation 4 and the deflecting roller 2 can thus also be removed, or a simpler design of the seals 8, 8 'is possible, since appropriate leakage air quantities can be permitted.
  • the entire flow installation 4 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 favorable not eccentric or shifted below the middle of the space between two drying cylinders 3.
  • the arrangement of the flow installation 4 advantageously takes place at different distances from the 15 '' and 15 '' drying sieve 15 running up.
  • the boundary walls 4 ', 4' 'of the flow installation 4 do not run parallel, but rather at a slight angle to the drying sieve 15', 15 '' therein Areas.
  • the seal 8, 8 'between the flow installation 4 and the 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. 3! Favors the drying effect and the material guidance.
  • the combination with an air blowing device 11 on the cylinders 3 is also recommended.
  • the combination of high-performance steel cylinders with suction deflection rollers 2 and ventilation systems (e.g. blow boxes 11 (Fig. 3)) can also be favorable.
  • Fig. 2 shows schematically a dryer group, which is constructed essentially like that shown in Fig. 1, but with an arrangement rotated by 180 °, ie 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 interchanged accordingly in their position.
  • Fig. 2 also shows the air cycle, for which reference is made to the lines ending with arrows, whereby the air movements are indicated.
  • 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 deflecting 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 shows a further embodiment of the invention, which is largely the same as FIG. 1 and in which the same device parts have been given the same reference numerals as in FIG. 1. However, no air bubble devices are arranged on the side of the deflecting rollers 2 opposite the flow internals 4. The other elements shown in Fig. 1, however, are completely present.
  • Fig. 5 shows an enlarged section of the dryer section.
  • the guidance of the paper web 14 and the drying wire 15 as well as the flow installation 4 or its boundary walls 4 ', 4' 'and 4' ''.
  • the seal 9 against the screen belt and the seals 8, 8 'against the deflection roller 2 are shown by way of example.
  • FIG. 6 illustrates the section AA according to FIG. 5.
  • the deflection roller 2 especially the flow installation 4 with the suction 10 and the seals 8 'is shown schematically.

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  • Drying Of Solid Materials (AREA)
  • Paper (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Details Of Garments (AREA)

Claims (12)

  1. Dispositif de séchage de bandes de matière circulant à grande vitesse, en particulier de bandes (14) de papier ou de pâte à papier, ce dispositif étant composé utilementd'une rangée de cylindres chauffés à la vapeur, en particulier essentiellement disposés sur le même plan horizontal, et utilement d'une rangée de rouleaux de renvoi (2) non chauffés, disposés à peu près dans les intervalles entre ces cylindres, en particulier également montés dans un plan horizontal situé en dessous ou au-dessus du plan horizontal précité, dont la chemise (13) est perforée, de préférence trouée, et dont le diamètre est plus petit que celui des cylindres, une aspiration d'air étant prévue à partir de ces rouleaux de renvoi (2), ces cylindres et les rouleaux de renvoi (2) étant équipés d'une garniture de toile filtrante, et la bande de matière (14) s'ajustant sur les cylindres entre leurs chemises et la toile filtrante (15) ou similaire, tandis que sur les rouleaux de renvoi (2) la toile filtrante (15)vient s'appliquer sur la chemise des rouleaux et la bande de matière (14) vient s'appliquer extérieurement sur la toile filtrante (15), un dispositif d'aspiration encastré (4) guidant un flux d'air et, par suite, la bande de matière dans les intervalles entre les cylindres entre les chemises du (des) cylindre(s) étant disposé sur la partie de la chemise (13)des rouleaux de renvoi (2) non touchée par le toile filtrante (15), ce dispositif d'aspiration encastré (4) recouvrant largement la partie de la chemise (13) des rouleaux de renvoi (2) non recouverte par la toile filtrante (15),
    caractérisé en ce que ce dispositif d'aspiration encastré (4) présente des flancs latéraux (4', 4'') complètement fermés en direction du brin (15', 15'') de la toile filtrante respectivement voisin, ainsi qu'un espace intérieur non divisé, ouvert seulement en direction de la partie de la chemise (13) du rouleau de renvoi (2) correspondant non touchée par la toile filtrante (15), cet espace étant avantageusement relié à un générateur de dépression, tandis qu'il est prévu dans la zone du dos, en particulier du côté supérieur du dispositif d'aspiration encastré (4) opposé à la chemise (13) du rouleau de renvoi (2) associé, un dispositif de séparation de l'air ou un joint d'étanchéité (9) s'étendant dans la fente entre le dispositif d'aspiration encastré (4) et le brin (15' 15'') de la toile filtrante qui arrive ou qui s'éloigne.
  2. Dispositif de séchage selon la revendication 1, caractérisé en ce que l'espacement des flancs latéraux du dispositif d'aspiration encastré par rapport au brin respectivement voisin de la toile filtrante accroît, en particulier continuellement, en étant vu dans le sens de circulation de la toile filtrante.
  3. Dispositif de séchage selon la revendication 1 ou 2, caractérisé en ce que le dispositif d'aspiration encastré a un espacement moindre par rapport au brin de la toile filtrante arrivant sur le rouleau de renvoi que par rapport au brin quittant ce rouleau.
  4. Dispositif de séchage selon une des revendications 1 à 3, caractérisé en ce que le dispositif d'aspiration encastré est rendu étanche sur ses bords par rapport à la chemise du rouleau de renvoi associé, sur son côté tourné vers ladite chemise.
  5. Dispositif de séchage selon une des revendications 1 à 4, caractérisé en ce que le ou les rouleau(x) de renvoi est ou sont décalé(s) par rapport au plan de symétrie des intervalles entre les cylindres, en direction du brin de la toile filtrante arrivant sur le(s) rouleau(x) de renvoi.
  6. Dispositif de séchage selon une des revendications 1 à 5, caractérisé en ce qu'un dispositif (1) d'insufflation d'air est disposé sur le côté des rouleaux de renvoi se trouvant en face du dispositif d'aspiration encastré, en entourant, par exemple complètement, avec du jeu de mouvement, la chemise du rouleau de renvoi (2) en contact avec la toile filtrante ou similaire, au moins essentiellement dans la partie de la chemise du rouleau de renvoi (2) éloignée des cylindres et étant en contact avec la toile filtrante ou similaire, au moins essentiellement dans la partie guidant la toile filtrante et la bande de matière vers le cylindre suivant.
  7. Dispositif de séchage selon une des revendications 1 à 6, caractérisé en ce qu'il est prévu sur les cylindres (3) chauffés à la vapeur un ou des autre(s) dispositif(s) d'insufflation d'air (11) ou un ou des caisson(s) d'insufflation qui servent aussi à l'introduction d'air frais dans le dispositif de séchage et ont avantageusement une ou des ouverture(s) d'insufflation d'air qui se trouve(nt) dans l'intervalle entre des cylindres voisins sur le côté éloigné du rouleau de renvoi associé, près d'un cylindre ou des deux cylindres.
  8. Dispositif de séchage selon une des revendications 1 à 7, caractérisé en ce que les cylindres (3) chauffés à la vapeur sont des cylindres en acier à haute résistance.
  9. Dispositif de séchage selon une des revendications 1 à 8, caractérisé en ce que les dispositifs (1) d'insufflation d'air pour les rouleaux de renvoi (2) sont raccordés à un système de circuit d'amenée d'air qui est séparé du reste du système de ventilation du dispositif de séchage.
  10. Dispositif de séchage selon une des revendications 1 à 8, caractérisé en ce qu'il est prévu pour le dispositif de séchage un système de ventilation commun, l'espace ou les espaces intérieurs du ou des dispositifs d'aspiration encastrés (4) et le ou les rouleaux de renvoi (2) sont raccordés conjointement à un générateur de dépression (24), ainsi que par le fait que le ou les dispositifs (1) d'insufflation d'air ainsi que, le cas échéant, le ou les autres dispositifs (11) d'insufflation d'air sont alimentés conjointement par un dispositif (19) de chauffage de l'air.
  11. Dispositif de séchage selon une des revendications 7 à 10, caractérisé en ce que le dispositif (1) d'insufflation d'air peut être soulevé totalement ou partiellement en l'écartant de la surface du rouleau de renvoi (2), d'un côté ou des deux côtés.
  12. Dispositif de séchage selon une des revendications 1 à 11, caractérisé en ce que le diamètre des rouleaux de renvoi (2) non chauffés, reliés à un générateur de dépression, est plus petit que le diamètre des cylindres (3) chauffés à la vapeur, le diamètre des rouleaux de renvoi (2) étant d'environ 1000 à 1500 mm et le diamètre de ces cylindres étant d'environ 1800 mm.
EP90121251A 1989-11-10 1990-11-07 Système de séchage Expired - Lifetime EP0427217B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT258289A AT394870B (de) 1989-11-10 1989-11-10 Trocknungsvorrichtung
AT2582/89 1989-11-10

Publications (3)

Publication Number Publication Date
EP0427217A2 EP0427217A2 (fr) 1991-05-15
EP0427217A3 EP0427217A3 (en) 1991-11-06
EP0427217B1 true EP0427217B1 (fr) 1995-05-24

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Application Number Title Priority Date Filing Date
EP90121251A Expired - Lifetime EP0427217B1 (fr) 1989-11-10 1990-11-07 Système de séchage

Country Status (5)

Country Link
EP (1) EP0427217B1 (fr)
AT (1) AT394870B (fr)
DE (1) DE59009129D1 (fr)
ES (1) ES2072956T3 (fr)
NO (1) NO179263C (fr)

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FI104276B (fi) * 1995-04-12 1999-12-15 Valmet Corp Kuivatusosakonsepti ja menetelmä paperirainan/kartonkirainan kuivatuksessa
DE19609213A1 (de) * 1996-03-09 1997-09-11 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Bahn
DE19714758A1 (de) * 1997-04-10 1998-10-15 Voith Sulzer Papiermasch Gmbh Vorrichtung zum Führen einer Materialbahn
FI119029B (fi) 2006-01-30 2008-06-30 Metso Paper Inc Menetelmä ja laite kuiturainakoneen, kuten paperi- tai kartonkikoneen kuivatusosassa
WO2011076251A2 (fr) 2009-12-21 2011-06-30 Metso Paper, Inc. Composant facilitant le passage sur machine
FI126248B (fi) * 2013-11-06 2016-08-31 Valmet Technologies Inc Menetelmä ja sovitelma päänviennissä kuiturainakoneen kuivatusosalla
DE102015223662A1 (de) * 2015-11-30 2017-06-14 Voith Patent Gmbh Vorrichtung zur Herstellung einer Faserstoffbahn
DE102015223660A1 (de) * 2015-11-30 2017-06-01 Voith Patent Gmbh Vorrichtung und verfahren zur herstellung einer faserstoffbahn
DE102015223663A1 (de) * 2015-11-30 2017-06-01 Voith Patent Gmbh Vorrichtung zur herstellung einer faserstoffbahn
DE102015223664A1 (de) * 2015-11-30 2017-06-01 Voith Patent Gmbh Vorrichtung und verfahren zur herstellung einer faserstoffbahn
CN111690996A (zh) * 2020-06-16 2020-09-22 杭州华创实业有限公司 一种包裹丝辐射烘干定型设备及其烘干方法
DE102023101609A1 (de) 2023-01-24 2024-04-18 Voith Patent Gmbh Maschine und Verfahren zur Herstellung oder Behandlung einer Faserstoffbahn

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DE59009129D1 (de) 1995-06-29
NO179263C (no) 1996-09-04
EP0427217A3 (en) 1991-11-06
AT394870B (de) 1992-07-10
ES2072956T3 (es) 1995-08-01
NO179263B (no) 1996-05-28
NO904885D0 (no) 1990-11-09
EP0427217A2 (fr) 1991-05-15
ATA258289A (de) 1991-12-15
NO904885L (no) 1991-05-13

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