EP0887460B2 - Procédé et appareil pour nettoyer une bande de transport - Google Patents

Procédé et appareil pour nettoyer une bande de transport Download PDF

Info

Publication number
EP0887460B2
EP0887460B2 EP98108953A EP98108953A EP0887460B2 EP 0887460 B2 EP0887460 B2 EP 0887460B2 EP 98108953 A EP98108953 A EP 98108953A EP 98108953 A EP98108953 A EP 98108953A EP 0887460 B2 EP0887460 B2 EP 0887460B2
Authority
EP
European Patent Office
Prior art keywords
cleaning
transport belt
cleaned
conveyor belt
width
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
EP98108953A
Other languages
German (de)
English (en)
Other versions
EP0887460B1 (fr
EP0887460A1 (fr
Inventor
Karlheinz Straub
Markus Oechsle
Gerhard Kotitschke
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 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7833562&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0887460(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to EP02002843A priority Critical patent/EP1219747B2/fr
Publication of EP0887460A1 publication Critical patent/EP0887460A1/fr
Publication of EP0887460B1 publication Critical patent/EP0887460B1/fr
Application granted granted Critical
Publication of EP0887460B2 publication Critical patent/EP0887460B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/32—Washing wire-cloths or felts
    • D21F1/325—Washing wire-cloths or felts with reciprocating devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/32—Washing wire-cloths or felts

Definitions

  • the invention relates to a method for cleaning a conveyor belt of a machine for producing a material web, in particular paper or board web, according to the preamble of claim 1 or 2.
  • conveyor belts In machines for producing a material web, numerous conveyor belts, in particular woven belts, are used. These are contaminated during operation of the machine, for example by fibers of the web, adhesives or other additives that enforce the mesh and pores of the conveyor belts.
  • the conveyor belts are cleaned by means of a cleaning device.
  • cleaning devices which comprise a pressurizable with a pressurized cleaning medium nozzle. The nozzle is displaceable transversely to the direction of the conveyor belt and brings the cleaning medium evenly on the conveyor belt surface.
  • cleaning devices which comprise a transversely extending to the direction of the conveyor belt nozzle bar, are mounted on the plurality of nozzles, by means of which a cleaning medium can be applied to the conveyor belt. It has been shown that the conveyor belts-transverse to the running direction- are unevenly contaminated, that is, the conveyor belt may be particularly heavily soiled, for example, in the edge regions, while only a small contamination can be given in the conveyor belt center.
  • the uniform cleaning effect of the known cleaning devices can not always provide a satisfactory cleaning result in such cases, which can lead to disruptions in the production process and in particular to a loss of quality # of the finished product (see EP-A-383486).
  • a method which has the features mentioned in claim 1 or 2. It is characterized in that the conveyor belt is cleaned across the width with different intensity.
  • the conveyor belt is cleaned during a cleaning process - seen transverse to the direction of the conveyor belt - at different locations, each with a defined, preferably adapted to the degree of contamination of the respective conveyor belt section intensity.
  • the edges of the conveyor belt are cleaned with a greater intensity than the intermediate conveyor belt section or vice versa.
  • the cleaning intensity is influenced by a specific specification of the time duration in which a defined area of the conveyor belt is cleaned. In another embodiment of the invention, it is provided that the cleaning intensity is influenced by adjusting the interval of time between two successive cleaning operations, in which one and the same area of the conveyor belt is cleaned. The cleaning intensity is higher, the longer the duration of the cleaning and / or the shorter the time interval between two cleaning operations.
  • the conveyor belt is cleaned with a pressurized, gaseous or liquid cleaning medium and that the cleaning intensity is influenced by adjusting the pressure of the cleaning medium.
  • the greater the pressure of the cleaning medium the higher the cleaning effect can be and vice versa.
  • only slightly contaminated conveyor belt areas can be acted upon by a cleaning medium under a lower pressure and the more heavily soiled conveyor belt areas with a cleaning medium under a correspondingly higher pressure.
  • the conveyor belt is subjected to a relatively small load, which prolongs its service life, especially in the case of sensitive conveyor belts.
  • an embodiment of the method which is characterized in that the cleaning region of the conveyor belt is subjected to negative pressure and that the pressure is adjusted in dependence on the desired cleaning intensity.
  • negative pressure can also be particularly persistently detached on the conveyor belt adhering dirt, so that a gewü desired cleaning result is achieved.
  • Particularly advantageous in the control of the aspiration that thereby the vacuum requirements and thus the cost of its provision can be reduced.
  • an embodiment of the method is preferred, which is characterized in that the applied to the conveyor belt area to be cleaned amount of the cleaning medium is adjusted.
  • the cleaning effect can with increasing amount of applied to the conveyor belt Increase cleaning medium.
  • the inventive method according to any one of claims 1 to 7 is also used for adjusting the moisture profile of the conveyor belt.
  • the moisture content in the conveyor belt can be adjusted.
  • the moisture profile of a material web which is supported by the cleaning of the conveyor belt, influenced by this, and preferably also be adjusted.
  • cleaning device 1 for short.
  • the cleaning device 1 can be used for any conveyor belts of a machine for producing a material web, for example, for screen belts or felts a screening or a press or dryer section of a paper or board making machine.
  • the term "conveyor belts" also the screens or felts are addressed, which are used within one of the press and the dryer section upstream Former. Purely by way of example, it is assumed that these are conveyor belts of a papermaking machine.
  • the cleaning device 1 comprises a nozzle head 3 having a nozzle device 5.
  • the nozzle head 3 has at least one nozzle, not shown, which is a porous conveyor belt 7 with a liquid cleaning medium, for example water, or a gaseous cleaning medium, for example steam, acted upon in the following it is assumed by way of example that it is the cleaning medium is a liquid which is under a pressure of 100 bar to 1000 bar
  • a in the figure partially port 6 is provided, to which a connectable with a pump pressure hose for supplying the nozzle device 5 can be connected to the cleaning medium.
  • the nozzle head 3 can be formed rotatable about its longitudinal axis 9 and have a nozzle assembly comprising one or more motive nozzles, from which the cleaning medium emerges tangentially to the conveyor belt surface and which serve to generate a rotational movement, also one or more cleaning nozzles, the apply the cleaning medium to the conveyor belt.
  • the rotation of the nozzle head may also be effected in other ways than by the use of motive nozzles.
  • the nozzle device 5 is completely surrounded by a jacket-shaped suction cup 11.
  • the interior of the suction cup 11 is connected to a suction line 13 and forms a nozzle chamber 5 associated suction chamber 15.
  • the suction line 13 is mounted on a Traversierwagen 17 and communicates with a vacuum source, not shown in flow communication.
  • the Traversierwagen 17 is along a transversely to the direction of the conveyor belt 7 extending -shapely shown schematically-traverse 19 displaced.
  • the Traversierwagen 17 and the Traverse 19 form a Traversiereinheft 20th
  • the cleaning device 1 is associated with a deflection roller 21 around which the conveyor belt 7 is guided.
  • the over a portion of the peripheral surface of the guide roller 21 extending suction cup 11 is arranged at a distance from the guide roller 21.
  • a conveyor belt 7 facing end portion 23 of the suction cup 11 is the circular cylindrical peripheral shape of the guide roller 21 adapted so that the gap between the suction cup 11 and the conveyor belt 7 is substantially constant.
  • the distance between the suction locomotive 11 and the conveyor belt 7 is adjustable, which will be discussed in more detail.
  • the conveyor belt 7 can be cleaned across the width with different intensity.
  • the pressure of the cleaning medium here the cleaning liquid
  • the adjustment of the pressure of the cleaning liquid can be done for example by means of a control / regulation, not shown in the figure, which controls the delivery rate of the supply of the nozzle device 5 with the cleaning liquid serving pump.
  • the intensity of the cleaning of the conveyor belt 7 can also be influenced, preferably adjusted, by varying the traversing speed of the nozzle device 5. At a high traversing speed, the residence time of the jet 25 is reduced to one and the same point of the conveyor belt 7 from a lower traversing speed, that is to say that at a high speed there is less cleaning action than at a lower speed. In another embodiment, it is provided that, for influencing the cleaning intensity, both the pressure of the cleaning fluid and the traversing speed are varied.
  • Another way to adjust the cleaning effect of the cleaning device 1 is to vary the suction of the suction device, for example, characterized in that in the Absaugleltung 13, a valve is introduced, by means of which the aspirated from the suction chamber 15 volume is adjustable.
  • the valve not shown in the figure, for example, can be designed as a proportional valve, which is infinitely adjustable.
  • additional cleaning nozzles can also be used are provided, which can be activated and deactivated separately, so that one or more of the additional nozzles can be switched on / off before or during a cleaning process as needed.
  • the inventive method is further used for adjusting the moisture profile of the conveyor belt 7.
  • the setting of the moisture profile of a conveyor belt can be done manually or automatically, following a predetermined profile, by controlling / regulating the cleaning intensity.
  • the intensity with which the conveyor belt 7 is cleaned in certain areas is preferably dependent on the degree of contamination. It has been shown that often the edges of the conveyor belt 7 are more dirty than the intermediate conveyor belt section, so that they must be cleaned with a greater intensity. This can be realized with one of the measures described above.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Belt Conveyors (AREA)
  • Structure Of Belt Conveyors (AREA)

Claims (7)

  1. Procédé pour nettoyer une bande de transport d'une machine de fabrication d'une nappe de matériau, en particulier une nappe de papier ou de carton, la bande de transport étant nettoyée sur toute sa largeur avec une intensité différente, et
    dans lequel l'intensité de nettoyage est influencée par l'indication préalable d'une durée déterminée durant laquelle une zone définie de la bande de transport est nettoyée,
    caractérisé en ce que
    le nettoyage utilisé a lieu avec une intensité différente sur la largeur de la bande de transport pour établir transversalement à la direction de déplacement un profil d'humidité prédéterminé correspondant à la teneur en eau de la bande de transport du fait que, par ajustement mutuel de la durée temporelle du nettoyage et de la vitesse de traversée d'un dispositif de buses monté de manière déplaçable transversalement à la direction d'avance de la bande de transport pour éjecter un fluide de nettoyage et/ou de la pression du fluide de nettoyage et/ou de la mise en service d'autres buses de nettoyage et/ou de la commande/régulation de la puissance d'aspiration d'un dispositif d'aspiration, on établit une teneur en eau exacte dans la bande de transport transversalement sur la largeur.
  2. Procédé pour nettoyer une bande de transport d'une machine de fabrication d'une nappe de matériau, en particulier une nappe de papier ou de carton, la bande de transport étant nettoyée sur toute sa largeur avec une intensité différente, et
    dans lequel l'intensité de nettoyage est influencée par le réglage de l'intervalle de temps entre deux opérations de nettoyage successives, durant lequel une seule et même zone de la bande de transport est nettoyée,
    caractérisé en ce que
    le nettoyage utilisé a lieu avec une intensité différente sur la largeur de la bande de transport pour établir transversalement à la direction de déplacement un profil d'humidité prédéterminé correspondant à la teneur en eau de la bande de transport du fait que, par ajustement mutuel de la durée de l'intervalle temporel situé entre eux de opération de nettoyage successif et de la vitesse de traversée d'un dispositif de buses monté de manière déplaçable transversalement à la direction d'avance de la bande de transport pour éjecter un fluide de nettoyage et/ou de la pression du fluide de nettoyage et/ou de la mise en service d'autres buses de nettoyage et/ou de la commande/régulation de la puissance d'aspiration d'un dispositif d'aspiration, on établit une teneur en eau exacte dans la bande de transport transversalement sur la largeur.
  3. Procédé selon la revendication 2, caractérisé en ce que l'intensité de nettoyage est augmentée d'autant plus que l'intervalle de temps est réduit.
  4. Procédé pour nettoyer une bande de transport d'une machine de fabrication d'une nappe de matériau, en particulier une nappe de papier ou de carton, la bande de transport étant nettoyée sur toute sa largeur avec une intensité différente, selon l'une quelconque des revendications précédentes, caractérisé en ce que la zone de nettoyage de la bande de transport est soumise à une pression négative et en ce que la pression est réglée en fonction de l'intensité de nettoyage souhaitée.
  5. Procédé pour nettoyer une bande de transport. d'une machine de fabrication d'une nappe de matériau, en particulier une nappe de papier ou de carton, la bande de transport étant nettoyée sur toute sa largeur avec une intensité différente, selon l'une quelconque des revendications précédentes, caractérisé en ce que les bords de la bande de transport sont nettoyés avec une plus grande intensité que la zone intermédiaire de la bande de transport.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la bande de transport est nettoyée avec un fluide de nettoyage gazeux ou liquide sous pression et en ce que l'intensité de nettoyage est influencée par le réglage de la pression du fluide de nettoyage en utilisant une commande ou une régulation.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité de fluide de nettoyage apportée sur la zone de la bande de transport à nettoyer est réglée.
EP98108953A 1997-06-25 1998-05-16 Procédé et appareil pour nettoyer une bande de transport Expired - Lifetime EP0887460B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02002843A EP1219747B2 (fr) 1997-06-25 1998-05-16 Procédé pour nettoyer une bande de transport

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19726897A DE19726897C2 (de) 1997-06-25 1997-06-25 Verfahren zum Reinigen eines Transportbandes
DE19726897 1997-06-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP02002843A Division EP1219747B2 (fr) 1997-06-25 1998-05-16 Procédé pour nettoyer une bande de transport

Publications (3)

Publication Number Publication Date
EP0887460A1 EP0887460A1 (fr) 1998-12-30
EP0887460B1 EP0887460B1 (fr) 2002-08-14
EP0887460B2 true EP0887460B2 (fr) 2006-10-04

Family

ID=7833562

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02002843A Expired - Lifetime EP1219747B2 (fr) 1997-06-25 1998-05-16 Procédé pour nettoyer une bande de transport
EP98108953A Expired - Lifetime EP0887460B2 (fr) 1997-06-25 1998-05-16 Procédé et appareil pour nettoyer une bande de transport

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP02002843A Expired - Lifetime EP1219747B2 (fr) 1997-06-25 1998-05-16 Procédé pour nettoyer une bande de transport

Country Status (3)

Country Link
US (1) US5964956A (fr)
EP (2) EP1219747B2 (fr)
DE (3) DE19726897C2 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19822185A1 (de) * 1998-05-16 1999-11-18 Voith Sulzer Papiertech Patent Vorrichtung und Verfahren zum Reinigen eines Transportbandes
DE19901802B4 (de) * 1999-01-19 2004-02-12 Baldwin Germany Gmbh Vorrichtung zur Rückbefeuchtung einer getrockneten Papierbahn
DE19923591A1 (de) * 1999-05-21 2000-11-23 Fleissner Maschf Gmbh Co Vorrichtung mit einem Düsenbalken zur Erzeugung von Flüssigkeitsstrahlen zur Strahlbeaufschlagung der Fasern einer Warenbahn
AT408462B (de) * 1999-11-18 2001-12-27 Andritz Ag Maschf Verfahren und vorrichtung zur staubabtrennung von einer laufenden papierbahn
US6468397B1 (en) * 1999-12-20 2002-10-22 Kimberly-Clark Worldwide, Inc. Scarfing shower for fabric cleaning in a wet papermaking process
SE0002647L (sv) * 2000-07-13 2002-01-14 Valmet Fibertech Ab Förfarande och anordning för rengöring under drift av ett underlag
US6439041B1 (en) 2000-08-09 2002-08-27 Bridgestone/Firestone North American Tire, Llc Powder dispensing/collection manifold for indoor wear testing
DE10102199A1 (de) 2001-01-18 2002-08-01 Voith Paper Patent Gmbh Verfahren zur Konditionierung eines umlaufenden Filzbandes
DE10136467A1 (de) * 2001-07-26 2003-02-06 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Reinigen eines umlaufenden Bandes
AT411907B (de) * 2001-11-22 2004-07-26 Bartelmuss Klaus Ing Vorrichtung zur reinigung des mindestens einen siebbandes in einer anlage zur papiererzeugung
FI110761B (fi) * 2002-03-22 2003-03-31 Metso Paper Inc Puhdistuslaitteisto liikkuvan pinnan puhdistamiseksi erityisesti paperikoneessa
US6740172B1 (en) * 2002-06-06 2004-05-25 Terry Cemlyn Griffiths Modular belt cleaning apparatus
DE10233796A1 (de) * 2002-07-25 2004-02-12 Voith Paper Patent Gmbh Reinigungsverfahren
EP1625893A1 (fr) * 2004-08-10 2006-02-15 Konica Minolta Photo Imaging, Inc. Méthode de revêtement par pulvérisation, pulvérisateur et feuille pour enregistrement au jet d'encre.
DE102004052234A1 (de) * 2004-10-27 2006-05-04 Voith Fabrics Patent Gmbh Temporäre Eigenschaftsänderung einer Papiermaschinenbespannung
US20090007800A1 (en) * 2005-03-14 2009-01-08 Hickory Industries, Inc. Rotisserie
CA2653654A1 (fr) * 2006-06-06 2007-12-21 Boehringer Ingelheim International Gmbh Composes amide de l'acide 3-amino-thieno[2,3-b]pyridine-2-carboxylique substitues, procedes de preparation et leurs utilisations
US7597782B2 (en) 2006-10-11 2009-10-06 Dubois Chemicals, Inc. Press stable method of cleaning paper machine press fabrics on-the-run
DE102006057367A1 (de) * 2006-12-04 2008-06-05 Fleissner Gmbh Absaugkammer für einen Wasserbalken zur Strahlbeaufschlagung von Geweben
DE102009059790B4 (de) * 2009-12-21 2017-03-30 Paprima Industries Inc. Reinigungsvorrichtung
JP5712826B2 (ja) * 2010-11-17 2015-05-07 株式会社リコー 乾式クリーニング筐体及び乾式クリーニング装置
US9481777B2 (en) 2012-03-30 2016-11-01 The Procter & Gamble Company Method of dewatering in a continuous high internal phase emulsion foam forming process
US10201840B2 (en) * 2012-04-11 2019-02-12 Gpcp Ip Holdings Llc Process for cleaning a transport belt for manufacturing a paper web
CN107792622B (zh) * 2017-11-23 2023-07-07 中安重工自动化装备有限公司 用于传送皮带的清洁器
EP4103031B1 (fr) * 2020-02-13 2025-05-07 Kadant Nordic AB Tête de nettoyage avec ensemble de buses directionnelles et lame d'air externe façonnée des systèmes de pulvérisation à va-et-vient
CN116513757A (zh) * 2023-05-24 2023-08-01 杰瑞环境科技有限公司 传送带回程清扫的控制方法及装置
CN118180061B (zh) * 2024-05-15 2024-07-26 中国人民解放军海军航空大学 一种航空零部件用油污清洗装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279976A (en) † 1964-05-18 1966-10-18 Sandy Hill Corp Felt cleaner for paper making machines
US3859163A (en) † 1973-01-05 1975-01-07 Scapa Dryers Ltd Moisture control of felts and webs in papermaking systems
US4674684A (en) † 1982-10-04 1987-06-23 Albany International Corp. Support and drive members suitable, for example, for use in shower units of papermaking machines
DE4419540A1 (de) † 1993-06-21 1995-01-12 Andritz Patentverwaltung Verfahren und Vorrichtung zur Reinigung einer umlaufenden Gewebebahn
US5381580A (en) † 1990-06-06 1995-01-17 J. M. Voith Gmbh Device for cleaning a paper machine wire web
EP0731212A1 (fr) † 1995-02-24 1996-09-11 Voith Sulzer Papiermaschinen GmbH Dispositif de nettoyage
US5595632A (en) † 1994-02-01 1997-01-21 James Ross Limited Shower for paper making machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4378639A (en) * 1978-12-21 1983-04-05 Midland-Ross Corporation Method and apparatus for uniformly drying a continuous web of cellulosic fibers
NZ194626A (en) * 1979-08-16 1984-11-09 Albany Int Corp Maintaining permeability of paper machine felts
FI83106C (fi) † 1987-12-09 1992-06-02 Tampella Oy Ab Foerfarande och anordning foer skaerande av en pappersmaskins bana medelst en vattenstraole.
GB8903357D0 (en) * 1989-02-14 1989-04-05 Morley Michael J Improvements in and relating to shower installations for paper making machines
JPH03234885A (ja) * 1990-02-02 1991-10-18 Ishikawajima Harima Heavy Ind Co Ltd 無端状抄紙用具の自動洗浄装置
FI903349A7 (fi) † 1990-07-03 1992-01-04 Tamfelt Oy Ab Mittauslaite huovan kunnon mittaamiseksi
DE19507938C2 (de) * 1995-02-24 1997-11-20 Voith Sulzer Papiermasch Gmbh Reinigungsvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279976A (en) † 1964-05-18 1966-10-18 Sandy Hill Corp Felt cleaner for paper making machines
US3859163A (en) † 1973-01-05 1975-01-07 Scapa Dryers Ltd Moisture control of felts and webs in papermaking systems
US4674684A (en) † 1982-10-04 1987-06-23 Albany International Corp. Support and drive members suitable, for example, for use in shower units of papermaking machines
US5381580A (en) † 1990-06-06 1995-01-17 J. M. Voith Gmbh Device for cleaning a paper machine wire web
DE4419540A1 (de) † 1993-06-21 1995-01-12 Andritz Patentverwaltung Verfahren und Vorrichtung zur Reinigung einer umlaufenden Gewebebahn
US5595632A (en) † 1994-02-01 1997-01-21 James Ross Limited Shower for paper making machine
EP0731212A1 (fr) † 1995-02-24 1996-09-11 Voith Sulzer Papiermaschinen GmbH Dispositif de nettoyage

Also Published As

Publication number Publication date
EP0887460B1 (fr) 2002-08-14
DE59810727D1 (de) 2004-03-11
EP1219747B2 (fr) 2007-10-10
EP1219747B1 (fr) 2004-02-04
EP1219747A2 (fr) 2002-07-03
DE19726897C2 (de) 2000-01-13
DE19726897A1 (de) 1999-01-07
EP1219747A3 (fr) 2002-07-24
DE59805159D1 (de) 2002-09-19
EP0887460A1 (fr) 1998-12-30
US5964956A (en) 1999-10-12

Similar Documents

Publication Publication Date Title
EP0887460B2 (fr) Procédé et appareil pour nettoyer une bande de transport
DE69728984T2 (de) Verfahren und vorrichtung zum auftragen eines materials auf ein bahnförmiges substrat
EP0963927B1 (fr) Procédé pour nettoyer des bandes transporteuses
EP0731211B1 (fr) Dispositif à jet
DE3034804A1 (de) Vorrichtung zum auftragen eines mediums auf eine siebdruckschablone
DE69918653T2 (de) Vorrichtung zum fördern und führen des einfädelstreifens einer bahn in einer papiermaschine
DE60225727T2 (de) Vorrichtung zur trockenherstellung einer faserstoffbahn
EP1225270B1 (fr) Procédé pour le conditionnement d' une bande en mouvement
EP0522093B1 (fr) Procede et dispositif pour le nettoyage d'une toile sans fin de machine a papier
EP0831174B1 (fr) Procédé et dispositif pour la déshydratation d'une suspension fibreuse
DE19860567A1 (de) Verfahren und Vorrichtung zum Reinigen eines Transportbandes
DE4116729C2 (de) Düsenartige Streicheinrichtung zum Auftragen einer Streichmasse auf eine laufende Papierbahn
DE1147470B (de) Vorrichtung zum Herstellen von Bahnen aus Papier, Pappe od. dgl.
DE29503752U1 (de) Reinigungsvorrichtung
DE2754622B2 (de) Naßpartie einer Papiermaschine
AT389534B (de) Vorrichtung zur entwaesserung einer auf einem sieb transportierten stoffbahn
EP0831172A2 (fr) Partie toile et procédé de déshydratation d'une bande fibreuse dans une partie toile
DE102004003899A1 (de) Vorrichtung zum Führen einer laufenden Faserstoffbahn
DE611585C (de) Stoffauflauf an Langsiebpapiermaschinen
DE19632509A1 (de) Verfahren und Vorrichtung zum Herstellen einer Faserstoffbahn
DE876194C (de) Papiermaschine mit Hochdruckstoffauflauf und Verfahren zum Betrieb derselben
DE1511189C (de) Entwässerungsvorrichtung für eine Langsieb-Papiermaschine
DE4434402A1 (de) Vorrichtung zur Umformung eines großformatigen Faservlieses zu einem Faserband
DE3237592A1 (de) Vorrichtung zum auftragen eines verschaeumten auftragsmediums auf ein flaechenerzeugnis
DE2346164A1 (de) Verfahren und vorrichtung zum impraegnieren von vliesen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990630

AKX Designation fees paid

Free format text: DE FI SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOITH PAPER PATENT GMBH

17Q First examination report despatched

Effective date: 20010716

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FI SE

REF Corresponds to:

Ref document number: 59805159

Country of ref document: DE

Date of ref document: 20020919

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: METSO PAPER, INC.

Effective date: 20030508

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: VOITH PATENT GMBH

27A Patent maintained in amended form

Effective date: 20061004

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE FI SE

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20110513

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20110512

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110520

Year of fee payment: 14

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120516

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120517

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59805159

Country of ref document: DE

Effective date: 20121201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121201