EP0936304A2 - Procédé et dispositif de nettoyage - Google Patents

Procédé et dispositif de nettoyage Download PDF

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Publication number
EP0936304A2
EP0936304A2 EP98124725A EP98124725A EP0936304A2 EP 0936304 A2 EP0936304 A2 EP 0936304A2 EP 98124725 A EP98124725 A EP 98124725A EP 98124725 A EP98124725 A EP 98124725A EP 0936304 A2 EP0936304 A2 EP 0936304A2
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaned
cleaning felt
blanket
felt
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.)
Withdrawn
Application number
EP98124725A
Other languages
German (de)
English (en)
Other versions
EP0936304A3 (fr
Inventor
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 Paper Patent GmbH
Voith Sulzer Papiertechnik 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
Application filed by Voith Paper Patent GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0936304A2 publication Critical patent/EP0936304A2/fr
Publication of EP0936304A3 publication Critical patent/EP0936304A3/fr
Withdrawn legal-status Critical Current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
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/12—Drying
    • 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 and an apparatus for cleaning a rotating press jacket of a press roll or an endless, rotating Belt, particularly suitable for use in machines for manufacturing or Finishing fibrous webs such as paper, cardboard or tissue.
  • Such tapes are known, for example, from EP 576 115 and are used especially for guiding the fibrous web in a press section. In the press nip this reduces the roughness, so that impressions in the fibrous web excluded are. The roughness increases in the unloaded state again, which facilitates the detachment of the fibrous web. Basis for this is a polymer coating of the tape.
  • the object of the invention is therefore an efficient method and a The simplest possible device for cleaning a rotating one Press sleeve or an endless belt to create.
  • the one to be cleaned and generally impermeable to water Surface over at least a longer section with an endless, revolving Cleaning felt or a similar tissue comes into contact it is possible through the felt structure at least a substantial part of the impurities as well as the adhering surface water from the to be cleaned Remove surface.
  • the subsequent cleaning of the cleaning felt is designed by using in particular transverse to the direction of movement running suction cups and spray pipes relatively simple and can improved by spraying cleaning liquid or steam become.
  • the contamination can become detached when the felt structure interlocks the cleaning felt with a particularly rough surface to clean still be improved in that the direction of movement and / or the Speed of the cleaning felt from the direction of movement or speed deviates from the surface to be cleaned.
  • the cleaning felt against the surface to be cleaned is pressed.
  • the press jacket or at least one wrapped around the belt Roll in the barrel of the cleaning felt or at least one of the Cleaning felt wrapped roller in the barrel of the press jacket or Tape immersed can be supported by the fact that one of the Cleaning felt wrapped roller with the press jacket or one from the belt wrapped roll forms a press nip. This does not improve only the contact between the cleaning felt and the surface to be cleaned but also the structure or roughness of the surface to be cleaned, which can be an advantage.
  • the cleaning effect can be improved if the too cleaning surface and / or the cleaning felt before contact with each other Via nozzles with steam and / or cleaning liquid running transversely to the direction of movement be sprayed.
  • the cleaning felt 5 moves with one of the rough surface 3 different speed, causing a sweep the rough surface 3 leads from the felt structure.
  • the cleaning felt 5 After contact of the cleaning felt 5 with the surface 3 to be cleaned the cleaning felt 5, which is guided over several guide rollers, is itself cleaned, which is much easier because of its permeable structure and over here a suction device running transversely to the direction of movement of the cleaning felt 5 10 and via spray tubes 16 according to FIGS. 1 and 3. Supplementing cleaning can be done, for example, in the suction space of the suction device 10 gaseous or liquid medium directed under pressure onto the cleaning felt be what the detachment of impurities and the discharge through the vacuum cleaner 10 relieved.
  • the fibrous web is one of a press and a Counter roll 12 formed nip.
  • the counter roller 12 is from a drainage felt 11 for receiving the squeezed water. This drainage felt 11 leads the fibrous web to the press nip. After the press nip, the dewatering felt is separated as quickly as possible 11 from the fibrous web to rewet the fibrous web prevent from the drainage felt 11.
  • the press roll is made of a flexible, water-impermeable belt 2 wrapped with a rough surface 3, which, for example, according to the EP 576 115 is formed.
  • This belt runs over several rollers 6 and leads the fibrous web through the press nip.
  • the transfer takes place after the press nip the fibrous web to a belt wrapped around a vacuumed roller 13 14 of a subsequent unit, for example a dryer section, what by the roughness of the belt 2 is facilitated. at the same time is a closed
  • the fiber web is guided without rewetting.
  • a cleaning cloth 5 wraps around it in FIG Roll 7 in the course of the belt 2. It is also opposite Roller 7 a roller 6 within the course of the belt 2.
  • the higher pressure for example Tapes according to EP 576 115 to reduce the roughness and thus to improve cleaning.
  • the press jacket 1 of the press roll itself has a rough surface 3rd It is also waterproof and flexible. This makes possible a simple removal of the fibrous web after the press nip from the Press jacket 1 directly. It is also carried out here with the help of a tape 14 looped, vacuumed roller 13. Subsequently, the scraper 8 directly on the press jacket 1.
  • To clean the press jacket 1 is one of Cleaning felt 5 wrapped roller 7 pressed against the press jacket 1.
  • the press jacket 1 is flexible, takes place in the area of the counter roll 12 and the roller 7 a support of the inner surface of the press shell 1 via a Pressure unit 15 with a concave pressure surface. The pressure is applied mostly by hydraulic means and lubrication by hydrostatic and / or hydrodynamic way.
  • the vacuumed roller 13 generally has a perforated roller shell, the inside of the roller 13 directly or over the non-looped area is connected to a vacuum source.
  • the method and the device are suitable for cleaning press sleeves (1) or tapes (2) with a smooth as well as with a rough, to be cleaned Surface (3).

Landscapes

  • Paper (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Cleaning In General (AREA)
  • Treatment Of Fiber Materials (AREA)
EP98124725A 1998-02-14 1998-12-28 Procédé et dispositif de nettoyage Withdrawn EP0936304A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998106078 DE19806078A1 (de) 1998-02-14 1998-02-14 Verfahren und Vorrichtung zur Reinigung
DE19806078 1998-02-14

Publications (2)

Publication Number Publication Date
EP0936304A2 true EP0936304A2 (fr) 1999-08-18
EP0936304A3 EP0936304A3 (fr) 2000-05-31

Family

ID=7857723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124725A Withdrawn EP0936304A3 (fr) 1998-02-14 1998-12-28 Procédé et dispositif de nettoyage

Country Status (2)

Country Link
EP (1) EP0936304A3 (fr)
DE (1) DE19806078A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1659215A1 (fr) * 2004-11-22 2006-05-24 Voith Fabrics Patent GmbH Dispositif pour nettoyer une toile de machine à papier
WO2007046968A1 (fr) * 2005-10-18 2007-04-26 Kimberly-Clark Worldwide, Inc. Appareil et procede pour enlever l'eau d'un tissu
EP1837438A2 (fr) * 2006-03-14 2007-09-26 Voith Patent GmbH Machine de fabrication de matériaux roulant, en particulier du papier ou du carton, et procédé de traitement d'une surface d'une bande de transport dans une machine destinée à la fabrication de matériaux roulants

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB957114A (en) * 1961-12-08 1964-05-06 W E Rawson Ltd Belt conveyors
US3313679A (en) * 1963-03-18 1967-04-11 Huyck Corp Paper machine felt dewatering method and apparatus
EP0024205A1 (fr) * 1979-08-16 1981-02-25 Albany International Corp. Appareil et procédé pour maintenir la perméabilité des feutres dans les machines à fabriquer le papier et le carton
JPH01321990A (ja) * 1988-06-20 1989-12-27 Aikawa Tekko Kk 製紙用キャンバス等における洗浄装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2204751C3 (de) * 1972-02-02 1981-06-19 Glaswerk Schuller Gmbh, 6980 Wertheim Schlitzsauger für einen Entwässerungskasten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB957114A (en) * 1961-12-08 1964-05-06 W E Rawson Ltd Belt conveyors
US3313679A (en) * 1963-03-18 1967-04-11 Huyck Corp Paper machine felt dewatering method and apparatus
EP0024205A1 (fr) * 1979-08-16 1981-02-25 Albany International Corp. Appareil et procédé pour maintenir la perméabilité des feutres dans les machines à fabriquer le papier et le carton
JPH01321990A (ja) * 1988-06-20 1989-12-27 Aikawa Tekko Kk 製紙用キャンバス等における洗浄装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 123 (C-0698), 8. März 1990 (1990-03-08) & JP 01 321990 A (AIKAWA TEKKO KK), 27. Dezember 1989 (1989-12-27) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1659215A1 (fr) * 2004-11-22 2006-05-24 Voith Fabrics Patent GmbH Dispositif pour nettoyer une toile de machine à papier
US7494569B2 (en) 2004-11-22 2009-02-24 Voith Paper Patent Gmbh Apparatus for cleaning a papermachine fabric
WO2007046968A1 (fr) * 2005-10-18 2007-04-26 Kimberly-Clark Worldwide, Inc. Appareil et procede pour enlever l'eau d'un tissu
US7452446B2 (en) 2005-10-18 2008-11-18 Kimberly-Clark Worldwide, Inc. Apparatus and method for dewatering a fabric
EP1837438A2 (fr) * 2006-03-14 2007-09-26 Voith Patent GmbH Machine de fabrication de matériaux roulant, en particulier du papier ou du carton, et procédé de traitement d'une surface d'une bande de transport dans une machine destinée à la fabrication de matériaux roulants
EP1837438A3 (fr) * 2006-03-14 2009-07-22 Voith Patent GmbH Machine de fabrication de matériaux roulant, en particulier du papier ou du carton, et procédé de traitement d'une surface d'une bande de transport dans une machine destinée à la fabrication de matériaux roulants

Also Published As

Publication number Publication date
EP0936304A3 (fr) 2000-05-31
DE19806078A1 (de) 1999-08-19

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