EP1072722A2 - Section de séchage - Google Patents

Section de séchage Download PDF

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Publication number
EP1072722A2
EP1072722A2 EP00111225A EP00111225A EP1072722A2 EP 1072722 A2 EP1072722 A2 EP 1072722A2 EP 00111225 A EP00111225 A EP 00111225A EP 00111225 A EP00111225 A EP 00111225A EP 1072722 A2 EP1072722 A2 EP 1072722A2
Authority
EP
European Patent Office
Prior art keywords
dryer
impingement
drying
material web
roller
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
EP00111225A
Other languages
German (de)
English (en)
Other versions
EP1072722B1 (fr
EP1072722A3 (fr
Inventor
Robert Wolf
Markus Oechsle
Wolfgang Mayer
Tri Chau-Huu
Thomas Mack
Roland Mayer
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 Patent GmbH
Original Assignee
Voith Paper Patent 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
Priority claimed from DE19935138A external-priority patent/DE19935138A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1072722A2 publication Critical patent/EP1072722A2/fr
Publication of EP1072722A3 publication Critical patent/EP1072722A3/fr
Application granted granted Critical
Publication of EP1072722B1 publication Critical patent/EP1072722B1/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
    • 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
    • D21F5/18—Drying webs by hot air

Definitions

  • the invention relates to a dryer section of a machine for production a material web, in particular a paper or cardboard web.
  • the aim of the invention is to provide a dryer section of the type mentioned to create with both at high machine speed the best possible drying rate at the beginning of drying as well as secure web guidance is guaranteed.
  • This object is achieved according to the invention in that the material web starting from the last press nip of a press section over at least a straight or slightly curved route in a closed train to one especially larger back-up roll with assigned impact flow dryer is guided through which the web of material guided over the support roller with a hot air and / or hot steam impingement flow and that the straight or slightly curved section is a baffle drying section and / or provided as a transfer foil route is.
  • the material web is at least in the area between the last one Press nip of the press section or the removal from the press felt or belt the last press nip and the backup roller through an open, d. H. Not smooth support surface supported, for example, by an endless belt or sieve can be formed.
  • the material web is preferred also in the area of the impact flow dryer assigned to the support roller through an open, i.e. H. supported not smooth support surface, this open support surface either through the surface or a cover or covering of the support roller or through the surface of one over the support roller guided endless belt or screen is formed.
  • the backup roller has an outer diameter in the range from about 2.5 to about 8 m and preferably in the range from about 3 to about 5 m.
  • this is the impingement dryer assigned backup roller and vacuumed over this Backing roller passed an endless screen to hold the web of material.
  • This can, for example, directly via an internal suction box or through an external suction box provided in the lateral surface Openings happen.
  • the diameter does not increase only the circumference of the backup roller, but also the possible one from the impingement dryer covered wrap angles and thus the Drying area.
  • the impingement flow dryer can be above or below the cylinder plane and, for transfer and / or cleaning, in particular, can be driven in parts.
  • a vacuumed backup roller can this roller and the associated suction box narrow Transfer zones for strip transfer included.
  • the material web is following at least one associated with a respective support roller Impingement flow dryer of a drying group with at least one Drying cylinder fed.
  • the material web can be in one or double-row dryer group are ready to be dried.
  • the material web preferably has on reaching or on leaving the first drying cylinder or when pulling from a smooth heated Surface already has a dry content that is higher than about 55 to about 65%. It can thus be avoided that the web of one heated smooth surface is subtracted as long as it is dry from less than about 55 to about 65%.
  • the dryer section is the material web in the direction of web travel before the straight or slightly curved impingement drying or transfer foil section following the support roller with associated impingement dryer in the basement, i.e. from the machine (e.g. in the pulper) mobile. There is thus a rejection of rejects after the press section.
  • the material web can, for example, following an in The web running direction considers the first straight or slightly curved impingement drying or transfer foil section movable into the basement his.
  • the material web can also be in the area of a Pickup roller can be moved into the basement, by means of which the material web of a press felt passed through the last press nip of the press section or Press belt is removable if not from the previous pickup roller is transferred to the dryer section.
  • the material web in the Area of an additional press roll in the basement is mobile, the one behind the last press nip of the press section provided deflection roller for a press felt passed through this last press nip.
  • the web can also be in the area of a smooth take-off roller, which is wrapped by the last press felt or belt so that the web with the roller runs along, be mobile in the basement. On this roller is preferred an acceptance scraper installed.
  • Impingement drying or transfer foil section provided in the the material web is guided between two screens.
  • a corresponding straight or slightly curved impingement drying or Transferfoil stretch can pass the material web through the top wire and / or impinged with a respective impingement flow through the lower sieve become.
  • the strainer provided on the blow side should be used resistant to high temperatures and as permeable as possible for the Be impingement.
  • the material web and the two screens can for example be supported by back-up rollers, which are only wrapped so far are that no paper damage from shear occurs, for example a wrap angle of about 2 to about 10 ° and in particular can be provided from about 3 to about 7 °.
  • the blow side can be changed.
  • Impingement drying or transfer foil route can be provided in the material web is held on a sieve by transfer foils.
  • the second or deck sieve can be omitted here. Is done on such a route an impingement drying, can by a respective impingement dryer or impingement box from directly onto the material web be blown.
  • the transfer foil route in question can also be used as pure transmission path provided without impingement drying his.
  • the impingement drying or transfer foil sections can be horizontal or run inclined.
  • At least two on the Impact flow dryer arranged on the same side of the material web are. At least one such impingement flow dryer can also be used be assigned to a straight or slightly curved impingement drying or transfer foil path.
  • Impingement dryer arranged on different sides of the material web are provided.
  • at least one impingement flow dryer can be used be assigned to a straight or slightly curved impingement drying or transfer foil path.
  • Impingement flow dryer in a different area than the direct starting area the dryer section, i.e. only after one or more drying cylinders the dryer section is provided.
  • each with an associated one Impingement dryer can be dried alternately from both sides or it can always be dried from the same side and a transfer between the larger back-up rolls a straight or slightly curved impingement drying or Transferfoil route take place.
  • At least one with at least one dryer hood is advantageous provided impact flow dryer provided.
  • the material web is straightened by a sieve or slightly curved impingement drying or transfer foil section transferred to a sieve guided over the support roller, the Transfer area by means of a provided in front of or on the support roller Suction box is vacuumable.
  • Air carried along by the sieve is expediently placed in front of the Stripped inlet into the nip, which e.g. possible with a flexible blade or is sucked off from the box in a pre-zone.
  • the decrease are supported by blow nozzles that either pass through the web blow off the sieve, e.g. in the small suction roller or in the space then integrated blow nozzles, or the web from the edge of the hood blow onto the large suction roller.
  • Part of the small suction roll can be designed as an overpressure zone, or it is in the space an overpressure box installed to push the web off the previous wire.
  • one is straight or slightly curved impingement drying or transfer foil section assigned screen is simultaneously guided over the backup roller, the material web in the area of a guide or blowing roller on the Backup roller is listed.
  • the material web can thus, for example, directly via a web guide roller or a blow roller, which ensures good web separation, onto the large, preferably vacuumed backup roller are performed.
  • the guide roller can the web run-up point be equipped with nozzles, which are an air cushion generate and thus ensure optimal web acceptance.
  • the nozzles can be integrated in a scraper. In the case of a blow roller these are covered with a sieve stocking.
  • the material web can be moved to the larger one Back-up roller with the screen directly onto an unheated web guide roller or be guided a drying cylinder.
  • the scraper should be useful be combined with a baffle or with the hood, that even with the hood off, no paper from the scraper into the hood falling or blocking.
  • the web guide roller can for example also designed as a blowing roller, possibly with a screen stocking be, which creates a slight web decrease.
  • the material web can be removed from the screen the larger back-up roll, for example by a suction roll, in such a way that paper breaks between the screens in the event of a tear can fall into the basement.
  • impingement drying for example following impingement or impingement conditions exist: blowing temperature about 200 to 400 ° C, air speed about 70 to about 140 m / s, preferably 90 to 120 m / s, distance of the impingement dryer or the hood about 10 to about 70 mm, preferably about 30 to about 50 mm.
  • the air speed can be used for cross profiling in zones can be varied, which also applies to the air temperature and humidity.
  • the conditions in the different boxes and Hoods or can be adjusted differently in longitudinal areas, e.g. the temperature in a double sieve range of the load capacity of the sieves adjust or choose a lower humidity to avoid condensation to be avoided as long as the material web is not sufficient is warm.
  • the blown air can be cascaded for effective energy use be led.
  • the impact flow or impingement hoods on one or several large backup rolls take over the main performance of the Impingement drying.
  • you can also use superheated steam can be used as drying medium. Basically, too Both media can be used.
  • the subsequent drying cylinders are partially arranged lower.
  • further impingement flow dryers or Impingement hoods on larger suction rolls above or below the cylinder plane be inserted.
  • the individual larger backup rolls can have a different diameter.
  • the committee is removed after the press not with a second pickup roller on the last one Press felt, but on a straight or slightly curved impingement drying or transfer foil route, so all design variants even with a decrease in the material web from one upper press felt can be combined.
  • additional IR radiators can be used for fast Warming up installed.
  • Figures 1 to 9 each show a purely schematic representation Dryer section 10 of a machine for producing a material web, at which can in particular be a paper or cardboard web.
  • the material web 12 (only in 1 indicated) starting from the last press nip 14 of a press section 16 over at least one straight or slightly curved path 18 in the closed Train to an especially larger back-up roller 20 with an associated one Impingement dryer 22 out through which the Backing roll 20 guided material web 12 with a hot air and / or Hot steam impingement flow can be acted upon, the straight or light curved section 18 as impingement drying and / or as Transferfoil route is provided.
  • Figure 1 shows a schematic representation of a first embodiment such a dryer section 10 with a straight or slightly curved Impingement flow path 18 and a lower larger support roller 20 with assigned impingement flow dryer 22.
  • the support roller 20 is in front arranged a drying group 24 with drying cylinders 26.
  • FIG. 2 shows a further embodiment in a purely schematic representation a dryer section 10 with a straight or slightly curved Impingement drying section 18 ', a straight or slightly curved transfer foil section 18 '' and an upper larger one Back-up roller 20 with associated impact flow dryer 22. Also in this The case is the larger backup roller 20 again in front of a drying group 24 arranged with drying cylinders 26.
  • FIG. 3 shows a further embodiment in a purely schematic representation a dryer section 10 with two straight or slightly curved Impingement drying and / or transfer foil sections 18 ', 18' ' and an upper, larger support roller 20 with an associated impingement dryer 22.
  • the larger backup roller 20 is in front of one Drying group 24 with drying cylinders 26 arranged.
  • FIG. 4 shows a further embodiment in a purely schematic representation a dryer section 10 with a straight or slightly curved Impingement drying and / or transfer foil section 18 and two arranged at different heights, in front of a drying group 24 provided with drying cylinders 26 larger backup rolls 20 ', 20' ', each with an associated impact flow dryer 22', 22 ''.
  • FIG. 5 shows a further embodiment in a purely schematic representation a dryer section 10 with a straight or slightly curved Impingement drying and / or transfer foil section 18 and two lower support rollers 20 ', 20' ', each with an associated impact flow dryer 22 'or 22' ', the larger backup roller 22' in front of one Drying group 24 with drying cylinders 26 and the other larger one Support roller 22 '' is arranged in an end region of the dryer section 10.
  • FIG. 6 shows a further embodiment in a purely schematic representation a dryer section 10 with at least two straight or light curved impingement drying and / or transfer foil sections 18 ', 18' 'and two upper support rollers 20', 20 '', each with an associated Impingement flow dryer 22 'or 22' ', with the larger support roller 20' in front a drying group 24 'with drying cylinders 26' and the other larger one Back-up roller 20 '' between this drying group 24 'and a subsequent one Drying group 24 '' with drying cylinders 26 '' is arranged.
  • FIG. 7 shows a further embodiment in a purely schematic representation a drying section 10 with a straight one of the slightly curved Transferfoil stretch 18 and an upper larger backup roller 20 with assigned impingement flow dryer 22. Also here is the larger one Back-up roller 20 again in front of a drying group 24 with drying cylinders 26 arranged.
  • FIG. 8 shows a further embodiment in a purely schematic representation a dryer section 10 with a straight or slightly curved Transferfoil route 18 and two at different heights arranged, provided in front of a drying group 24 with drying cylinders 26 Larger backup rolls 20 ', 20' ', each with an associated impact flow dryer 22 'or 22' '.
  • FIG. 9 shows a further embodiment in a purely schematic representation a dryer section 10 with a straight or slightly curved Transferfoil route 18 and two at different heights arranged, provided in front of a drying group 24 with drying cylinders 26 Larger backup rolls 20 ', 20' ', each with an associated impact flow dryer 22 'or 22' '. In the present case, between the two larger support rollers 20 ', 20' 'another straight or slightly curved Transfer foil route 28 is provided.
  • impingement drying is also carried out on a transfer foil section possible.
  • a transfer foil route can also be provided only as a transmission link.
  • Impingement drying or transfer foil section For transferring the material web from the press section to the next one Impingement drying or transfer foil section can for example a transfer belt may also be provided.
  • the still unstable material web to be dried can be closed from the Press transferred and then first in at least one straight or slightly curved impingement drying and / or transfer foil section 18 and then at least one, for example hood-like Impingement dryer 22 can be dried without the Web is pulled off a heated, smooth surface as long as it is one Has a dry content less than, for example, about 55 to Is 65%.
  • the diameter of a larger support roller 20 can, for example in a range from about 2.5 to 8 m and preferably in range from about 3 to about 5 m. Then the material web 12 in a single or double row dryer group 24 with several Drying cylinders 26 are completely dried.
  • a straight or A slightly curved impingement drying section can also be used only the transfer of the web to the large back-up roller serving transfer foil section be provided.
  • the material web 12 is preferably in the web running direction L before the straight or slightly curved impingement drying or transfer foil section 18 following backup roller with assigned impact flow dryer mobile in the basement 30.
  • the material web 12 is considered following an in the web running direction L. first straight or slightly curved impingement drying or Transferfoil route 18 in the basement 30 mobile.
  • the material web is against it 12 in the embodiment according to FIG. 1 in the area of an additional one Pickup roller 32 mobile in the basement 30, by means of which the material web 12 from one through the last press nip 14 of the press section 16 guided press felt or press belt 34 is removable.
  • the material web 12 is in the area an additional press roll 36 in the basement 30 mobile, the one behind the last press nip 14 of the press section 16 provided deflection roller 38 for a press felt passed through this last press nip 14 34 is opposite.
  • FIGS. 1 to 3 there is at least one a straight or slightly curved impingement drying or Transfer foil path 18 or 18 ′ is provided, in which the material web 12 between two screens 40, 42 is securely guided.
  • the material web can 12 from the top or bottom through the relevant screen 42 or 40 are acted upon by a respective impingement flow.
  • the screen provided on the blow side is expediently resistant to high temperatures and as permeable as possible for the impingement flow.
  • the Material web 12 and the twin wire are carried by support rollers 44, which are only wrapped so far that no paper damage by Shear occurs.
  • a wrap angle can be used from about 2 to about 10 ° and preferably from about 3 to about 7 ° his.
  • Impact flow dryers can be changed to the blow side.
  • the material web 12 can also be held on the screen by transfer foils become.
  • the second or deck screen can then be omitted. It can be blown directly onto the material web by the impingement flow dryer.
  • the impingement box can also be omitted in whole or in part, and this part of the straight or slightly curved route then becomes replaced by a pure transfer route, as shown for example to recognize the embodiments shown in Figures 2 and 7 is.
  • the impingement drying or transfer foil sections can be horizontal or inclined.
  • a movable roller 46 can be provided by water or Air vents can be supported behind the sieve.
  • the course can also be tapped by another Press nip done.
  • This is the material web in the embodiment according to FIG. 7 12 in the area of an additional press roll 36 in the basement 30 mobile, one behind the last press nip 14 of the press section 16 provided deflection roller 38 for a through this last press nip 14th guided press felt 34 is opposite.
  • a respective course is knocked off with the pickup point open in the dryer section.
  • the impingement dryer can 22, 22 ', 22' 'associated support roller 20, 20', 20 '' be sucked and guided over this support roller an endless screen 48. While, for example, in the embodiments according to FIGS and 5 this sieve is also assigned to drying group 24 at the same time, is, for example, in the embodiments according to FIGS. 2 to 4 and 6 to 8 of the support roller 20 and 20 'assigned a separate screen. In the embodiment according to FIG. 9, for example, this is the case Sieve also assigned to the transfer foil section 18 at the same time.
  • the suction of the backup roller in question can, for example, directly via an internal suction box or an external one Suction box via openings provided in the lateral surface.
  • the respective impingement hood can be above or lie below the cylinder plane and is for transferring and for Maintenance / cleaning should preferably be divided.
  • the respective big one Back-up roller and the associated suction box can have narrow transfer zones contain. With several large back-up rolls, each with an assigned Impingement hood can be dried alternately from both sides (see e.g. Figure 4).
  • Impingement drying or transfer foil route is transferred.
  • the transfer of the material web 12 from the previous screen to the next one Larger vacuumed backup roller 20 can be, for example, by a Suction box in front of or on the large support roller 20 in the area of the transfer zone take place (see, for example, Figures 1 and 7). Doing so expediently the air entrained by the sieve before entering stripped the nip, e.g. with a flexible blade, or from the box into one Aspirated area.
  • the removal can be supported by blowing nozzles be, for example, in the smaller suction roll or in Intermediate space can then be integrated. Through these blow nozzles the material web is either blown off through the sieve or from Blown hood edge onto the large vacuumed roller.
  • a screen 40 of the impingement drying or transfer foiling section 18 in front of the larger backup roller 20 be guided over a smaller suction roller 50.
  • Part of one smaller suction roll can be designed as an overpressure zone, or an overpressure box is installed in the space around the material web 12 from the previous sieve, here the sieve 40.
  • the material web 12 thus from a sieve 40 a straight or slightly curved one Impingement drying or transfer foil section 18 transfer a screen 48 guided over the following larger backup roller 20, the transfer area by means of a front of or on the support roller 20 provided suction box is suckable.
  • FIG. 9 shows an embodiment in which a a straight or slightly curved impingement drying or Transfer foil section 18 assigned sieve 48 simultaneously over the next one larger backup roller 20 'is guided and the material web in the area a guide or blowing roller 52 is listed on the support roller 20 ', which ensures a good web release.
  • the guide roller can be equipped with air nozzles in front of the web contact point be to create an air cushion and thus a good web acceptance to ensure.
  • the nozzles can be integrated in a scraper, for example his. In the case of a blow roller, this can be done with a sieve stocking be related.
  • the impingement flow dryer 20 located at the bottom (see, for example, FIG 1) can the material web 12 after the larger backup roller 20 with the Sieve 48 directly onto an unheated paper guide roller or drying cylinder 26 '' '.
  • the scraper should be so with a baffle or with the hood, i.e. the impingement flow dryer combined be that no paper from the scraper into the Can fall or block.
  • This paper guide roller 26 '' 'can also be used as a blow roller (possibly with a screen stocking) be, whereby a slight web decrease is achieved.
  • Figures 5 and 6 can be seen that for additional performance increase in the main evaporation in the area the cylinder drying at least one further impingement flow dryer 22 ' or at least one additional impingement hood, each with an associated one larger support roller 20 '' above or below the cylinder plane can.
  • the individual larger backup rolls can be the same or also have different diameters.

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  • Drying Of Solid Materials (AREA)
  • Paper (AREA)
EP00111225A 1999-07-27 2000-05-25 Section de séchage Expired - Lifetime EP1072722B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19935138 1999-07-27
DE19935138A DE19935138A1 (de) 1998-09-11 1999-07-27 Trockenpartie

Publications (3)

Publication Number Publication Date
EP1072722A2 true EP1072722A2 (fr) 2001-01-31
EP1072722A3 EP1072722A3 (fr) 2001-05-09
EP1072722B1 EP1072722B1 (fr) 2004-12-01

Family

ID=7916153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111225A Expired - Lifetime EP1072722B1 (fr) 1999-07-27 2000-05-25 Section de séchage

Country Status (2)

Country Link
US (1) US6442865B1 (fr)
EP (1) EP1072722B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010086234A1 (fr) * 2009-01-30 2010-08-05 Voith Patent Gmbh Dispositif pour fabriquer une bande de matériau
WO2021219272A1 (fr) * 2020-04-30 2021-11-04 Voith Patent Gmbh Machine de fabrication ou de traitement de voile fibreux
WO2022258262A1 (fr) * 2021-06-10 2022-12-15 Voith Patent Gmbh Machine de fabrication ou de traitement de nappe fibreuse

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Publication number Priority date Publication date Assignee Title
EP1158092B1 (fr) * 2000-05-24 2006-09-06 Voith Paper Patent GmbH Section de séchage
FI107547B (fi) * 2000-05-31 2001-08-31 Metso Paper Inc Paperi- tai kartonkikoneen kuivatusosan kuivatusryhmä ja paperi- tai kartonkikoneen kuivatusosa
DE10137095A1 (de) * 2001-07-30 2003-02-13 Voith Paper Patent Gmbh Maschine zur Herstellung einer Faserstoffbahn
DE10217571A1 (de) * 2002-04-19 2003-11-06 Voith Paper Patent Gmbh Trockenpartie
US8261465B2 (en) * 2002-09-10 2012-09-11 Voith Paper Patent Gmbh Equipment and method for producing and/or treating a fibrous web
FI124698B (fi) * 2004-01-15 2014-12-15 Valmet Technologies Inc Sovitelma paperikoneessa
FI122111B (fi) * 2004-01-15 2011-08-31 Metso Paper Inc Menetelmä ja laite paperikoneen kuivatusosassa
DE202005012994U1 (de) * 2005-08-05 2005-11-03 Voith Paper Patent Gmbh Vorrichtung zur Entwässerung einer Faserstoffbahn
KR100626851B1 (ko) * 2006-02-15 2006-09-20 송웅호 식생상자 및 이를 이용한 조경시스템

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EP0620313A2 (fr) * 1993-03-22 1994-10-19 Valmet Paper Machinery Inc. Procédé et module de séchage ainsi que leur application sans des sections de séchage, en particulier pour des machines à papier à grande vitesse
US5865955A (en) * 1995-04-10 1999-02-02 Valmet Corporation Method and device for enhancing the run of a paper web in a paper machine
WO2001000925A1 (fr) * 1999-06-29 2001-01-04 Valmet-Karlstad Ab Appareil et procede permettant de fabriquer du papier de soie texture

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US3874997A (en) 1973-03-21 1975-04-01 Valmet Oy Multiple cylinder drier in a paper machine
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US5598643A (en) * 1994-11-23 1997-02-04 Kimberly-Clark Tissue Company Capillary dewatering method and apparatus
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US6119362A (en) * 1996-06-19 2000-09-19 Valmet Corporation Arrangements for impingement drying and/or through-drying of a paper or material web
DE19651191A1 (de) 1996-12-10 1998-06-18 Voith Sulzer Papiermasch Gmbh Trockenpartie einer Maschine zur Herstellung einer Materialbahn
DE19752562A1 (de) * 1997-09-29 1999-04-01 Voith Sulzer Papiertech Patent Maschine zur Herstellung oder Bearbeitung einer Materialbahn
US5942085A (en) * 1997-12-22 1999-08-24 The Procter & Gamble Company Process for producing creped paper products
DE19841768A1 (de) * 1998-09-11 2000-03-16 Voith Sulzer Papiertech Patent Trockenpartie

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
EP0620313A2 (fr) * 1993-03-22 1994-10-19 Valmet Paper Machinery Inc. Procédé et module de séchage ainsi que leur application sans des sections de séchage, en particulier pour des machines à papier à grande vitesse
US5865955A (en) * 1995-04-10 1999-02-02 Valmet Corporation Method and device for enhancing the run of a paper web in a paper machine
WO2001000925A1 (fr) * 1999-06-29 2001-01-04 Valmet-Karlstad Ab Appareil et procede permettant de fabriquer du papier de soie texture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010086234A1 (fr) * 2009-01-30 2010-08-05 Voith Patent Gmbh Dispositif pour fabriquer une bande de matériau
WO2021219272A1 (fr) * 2020-04-30 2021-11-04 Voith Patent Gmbh Machine de fabrication ou de traitement de voile fibreux
WO2022258262A1 (fr) * 2021-06-10 2022-12-15 Voith Patent Gmbh Machine de fabrication ou de traitement de nappe fibreuse

Also Published As

Publication number Publication date
EP1072722B1 (fr) 2004-12-01
EP1072722A3 (fr) 2001-05-09
US6442865B1 (en) 2002-09-03

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