EP1219747B2 - Procédé pour nettoyer une bande de transport - Google Patents

Procédé pour nettoyer une bande de transport Download PDF

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Publication number
EP1219747B2
EP1219747B2 EP02002843A EP02002843A EP1219747B2 EP 1219747 B2 EP1219747 B2 EP 1219747B2 EP 02002843 A EP02002843 A EP 02002843A EP 02002843 A EP02002843 A EP 02002843A EP 1219747 B2 EP1219747 B2 EP 1219747B2
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EP
European Patent Office
Prior art keywords
cleaning
transport belt
intensity
conveyor belt
cleaned
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
EP02002843A
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German (de)
English (en)
Other versions
EP1219747B1 (fr
EP1219747A2 (fr
EP1219747A3 (fr
Inventor
Markus Oechsle
Karlheinz Straub
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
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Filing date
Publication date
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Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1219747A2 publication Critical patent/EP1219747A2/fr
Publication of EP1219747A3 publication Critical patent/EP1219747A3/fr
Publication of EP1219747B1 publication Critical patent/EP1219747B1/fr
Application granted granted Critical
Publication of EP1219747B2 publication Critical patent/EP1219747B2/fr
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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.
  • 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.
  • a method which has the features mentioned in claim 1. 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 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 stress, which prolongs their life, especially in sensitive conveyor belts.
  • the cleaning intensity is influenced by a specific specification of the time duration in which a defined region of the conveyor belt is cleaned.
  • 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.
  • 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 stubbornly adhering to the conveyor belt dirt are safely removed, so that a 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 may increase with increasing amount of applied to the conveyor belt cleaning medium.
  • the amount of liquid or gaseous cleaning medium used for the cleaning of the conveyor belt for example, depending on the degree of contamination of the conveyor belt area to be cleaned, the amount of cleaning medium required for a thorough cleaning can be reduced.
  • the inventive method according to claim 1 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 adjusted.
  • the setting of the moisture profile, so the water content of the conveyor belt / the material web -quer to the / seen running direction- takes place according to a predetermined, defined profile, the intensity of the cleaning of the conveyor belt is adjusted accordingly.
  • 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 screen 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 device 3 having a nozzle device 5.
  • the nozzle head 3 has at least one nozzle not shown on which a porous conveyor belt 7 with a liquid cleaning medium, for example water, or a gaseous cleaning medium, for example steam, acted upon.
  • a liquid cleaning medium for example water
  • a gaseous cleaning medium for example steam
  • the cleaning medium is a liquid which is under a pressure of 100 bar to 1000 bar.
  • a partially shown in the figure 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 Traversiermaschine 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 cup 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 by varying the traversing speed of the nozzle device 5, preferably adjusted. 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 suction line 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 be provided, which can be activated separately and can be deactivated 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 for example a press felt of a press section, can be done manually or automatically, preferably 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 transporteuse d'une machine de fabrication d'une bande de matériau, en particulier d'une bande de papier ou de carton, dans lequel la bande transporteuse est nettoyée avec une intensité différente sur sa largeur, caractérisé en ce que les bords de la bande transporteuse sont nettoyés avec une plus grande intensité que la région de la bande transporteuse intermédiaire, et en ce que le nettoyage avec une intensité différente sur la largeur de la bande transporteuse est utilisé pour ajuster le profil d'humidité prédéfini correspondant à la teneur en eau de la bande transporteuse transversalement à la direction d'avance de la bande transporteuse, en ajustant une teneur en eau exacte dans la bande transporteuse transversalement sur la largeur par un ajustement mutuel de la vitesse de déplacement transversal d'un dispositif de buse monté de manière déplaçable transversalement à la direction d'avance de la bande tranporteuse, pour éjecter un fluide de nettoyage, de la pression du fluide de nettoyage, de la durée du nettoyage, de la durée de l'intervalle de temps entre deux opérations de nettoyage successives, du montage d'autres buses de nettoyage et/ou de la commande/régulation de la puissance d'aspiration d'un dispositif d'aspiration.
  2. Procédé selon la revendication 1, caractérisé en ce que la bande transporteuse est nettoyée avec un fluide de nettoyage gazeux ou liquide sous pression, et en ce que l'intensité de nettoyage est influencée, de préférence commandée par l'ajustement de la pression du fluide de nettoyage.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'intensité de nettoyage est influencée par la commande de la durée durant laquelle une région définie de la bande transporteuse est nettoyée.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'intensité de nettoyage est influencée par l'ajustement de l'intervalle de temps entre deux opérations de nettoyage successives durant lequel une même région de la bande transporteuse est nettoyée.
  5. Procédé selon la revendication 4, caractérisé en ce que l'intensité de nettoyage est augmentée avec un intervalle de temps de plus en plus petit.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la région de nettoyage de la bande transporteuse est sollicitée par une dépression, et en ce que la pression est ajustée en fonction de l'intensité de nettoyage souhaitée.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la quantité de fluide de nettoyage appliquée sur la région de la bande transporteuse à nettoyer est ajustée.
EP02002843A 1997-06-25 1998-05-16 Procédé pour nettoyer une bande de transport Expired - Lifetime EP1219747B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19726897 1997-06-25
DE19726897A DE19726897C2 (de) 1997-06-25 1997-06-25 Verfahren zum Reinigen eines Transportbandes
EP98108953A EP0887460B2 (fr) 1997-06-25 1998-05-16 Procédé et appareil pour nettoyer une bande de transport

Related Parent Applications (1)

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

Publications (4)

Publication Number Publication Date
EP1219747A2 EP1219747A2 (fr) 2002-07-03
EP1219747A3 EP1219747A3 (fr) 2002-07-24
EP1219747B1 EP1219747B1 (fr) 2004-02-04
EP1219747B2 true EP1219747B2 (fr) 2007-10-10

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 After (1)

Application Number Title Priority Date Filing Date
EP98108953A Expired - Lifetime EP0887460B2 (fr) 1997-06-25 1998-05-16 Procédé et appareil 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 (26)

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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
WO2006099310A1 (fr) * 2005-03-14 2006-09-21 Hickory Industries, Inc. Rotissoire
US7592353B2 (en) * 2006-06-06 2009-09-22 Boehringer Ingelheim International Gmbh Substituted 3-amino-thieno[2,3-b]pyridine-2-carboxylic acid amide compounds and processes for preparing and their uses
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
US12116725B2 (en) * 2020-02-13 2024-10-15 Kadant Nordic AB Cleaning head with directional nozzle assembly and shaped external air knife for traversing shower systems
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

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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
DE3841160A1 (de) † 1987-12-09 1989-06-22 Tampella Oy Ab Verfahren und anordnung zum schneiden der bahn einer papiermaschine mit einem wasserstrahl
US5135615A (en) † 1990-07-03 1992-08-04 Tamfelt Oy Ab Device for measuring the condition of a felt and for reconditioning it
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

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US4378639A (en) * 1978-12-21 1983-04-05 Midland-Ross Corporation Method and apparatus for uniformly drying a continuous web of cellulosic fibers
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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
DE19507938C2 (de) * 1995-02-24 1997-11-20 Voith Sulzer Papiermasch Gmbh Reinigungsvorrichtung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3841160A1 (de) † 1987-12-09 1989-06-22 Tampella Oy Ab Verfahren und anordnung zum schneiden der bahn einer papiermaschine mit einem wasserstrahl
US5381580A (en) † 1990-06-06 1995-01-17 J. M. Voith Gmbh Device for cleaning a paper machine wire web
US5135615A (en) † 1990-07-03 1992-08-04 Tamfelt Oy Ab Device for measuring the condition of a felt and for reconditioning it
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
EP0887460A1 (fr) 1998-12-30
EP1219747B1 (fr) 2004-02-04
US5964956A (en) 1999-10-12
EP0887460B1 (fr) 2002-08-14
DE19726897A1 (de) 1999-01-07
EP1219747A2 (fr) 2002-07-03
EP1219747A3 (fr) 2002-07-24
DE19726897C2 (de) 2000-01-13
DE59805159D1 (de) 2002-09-19
DE59810727D1 (de) 2004-03-11
EP0887460B2 (fr) 2006-10-04

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