EP1464754B1 - Appareil de nettoyage d'une bande en mouvement - Google Patents

Appareil de nettoyage d'une bande en mouvement Download PDF

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Publication number
EP1464754B1
EP1464754B1 EP04101377A EP04101377A EP1464754B1 EP 1464754 B1 EP1464754 B1 EP 1464754B1 EP 04101377 A EP04101377 A EP 04101377A EP 04101377 A EP04101377 A EP 04101377A EP 1464754 B1 EP1464754 B1 EP 1464754B1
Authority
EP
European Patent Office
Prior art keywords
trailing
fluid
machine according
foil
band
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
EP04101377A
Other languages
German (de)
English (en)
Other versions
EP1464754A2 (fr
EP1464754A3 (fr
Inventor
Johann Moser
Helmut Faix
Thomas RÜHL
Dirk Thomas
Hans Discher
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
Priority claimed from DE2003115536 external-priority patent/DE10315536A1/de
Priority claimed from DE2003130015 external-priority patent/DE10330015A1/de
Priority claimed from DE2003150766 external-priority patent/DE10350766A1/de
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1464754A2 publication Critical patent/EP1464754A2/fr
Publication of EP1464754A3 publication Critical patent/EP1464754A3/fr
Application granted granted Critical
Publication of EP1464754B1 publication Critical patent/EP1464754B1/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
    • 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 machine for producing a fibrous web, in particular paper or board web, with a circulating belt, in particular wire or felt, and a device for cleaning the circulating belt, arranged with two parallel to each other and perpendicular to the strip running direction, swept by the rotating belt Strips, namely a casserole, and a drainage bar) and with a between the two strips-formed blowing opening, and one with a perpendicular to the strip running direction and preferably arranged within the loop of the circulating belt to be cleaned fluid transverse distribution tube, in particular air transverse distribution tube, for acting on the circumferential bands is connected to a fluid.
  • the problem arises, inter alia, that more or fewer deposits (material beards) form on the drainage strip, depending on the boundary conditions (material properties, screening properties, operating parameters of the former), which detach themselves unexpectedly and thus disturbances cause the produced fibrous web. Furthermore, the deposits due to their gradual encrustation can damage the revolving belt to be cleaned.
  • the invention has for its object to provide an improved machine of the type mentioned, in which the aforementioned problems are eliminated in the simplest and most effective manner.
  • the discharge strip has a discharge edge, which is acted upon by fluid exiting from the fluid transverse distribution tube via at least one channel and / or grooves.
  • the exiting and the drainage edge of the drainage strip acts fluid ensures that it is permanently and effectively cleaned and thereby no additional energy costs.
  • the run-off edge is offset against the strip running direction to the run-off strip, whereby a drainage space acted upon by the fluid is formed with a room height in the range from 2 to 10 mm.
  • This drainage chamber is acted upon by the fluid in an ideal manner so that no deposits form on the drainage edge.
  • the drainage edge is rectilinear or textured and formed with or without interruptions due to the inlets of the channels and grooves.
  • the structuring can be continuous, in particular wave-shaped, and / or discontinuous, in particular zigzag-shaped.
  • the channels in particular bores, extend from the interior of the fluid transverse distribution tube through the drainage strip to the discharge edge or to the discharge space and preferably have a diameter of 0.2 to 5 mm, preferably 1 to 4 mm.
  • the grooves extend below the drainage rail from the blow opening to the drainage edge or to the drainage space and preferably have a groove width and / or groove depth of 0.2 to 5 mm, preferably 1 to 4 mm.
  • a combination of channels and grooves, each with an arbitrary contour in terms of their cross-section is of course possible.
  • the channels and / or grooves also have a respective distance of 5 to 15 mm, preferably 7 to 12 mm, and / or a constant or approximately constant pitch over the length of the drain bar.
  • an extending at least over a substantial part of the drainage channel from the interior of the Fluidquerverteilrohrs along the drain side side drain bar runs to the drain edge, that the channel opens about 20 mm in front of the drainage edge and that the channel is a clear height in the range of 5 to 8 mm.
  • the circulating belt to be cleaned may in particular be a screen belt, such as a forming screen, or, for example, a felt belt or the like. Furthermore, the circulating belt to be cleaned can be a porous or permeable belt.
  • the invention is thus generally applicable to the cleaning of porous or permeable, that is in particular air and / or water permeable bands.
  • FIG. 1 shows an embodiment of a first machine according to the invention for producing a fibrous web, in particular paper or board web, with a circulating belt 2, in particular wire or felt belt, and a device 1 for cleaning the circulating belt 2 in a schematic side view.
  • the apparatus 1 for cleaning the circulating belt 2 comprises two parallel to each other and perpendicular to the strip running direction L (arrow) arranged, swept by the circulating belt 2 strips (casserole 3, drain bar 4) and formed between the two strips 3, 4 blowing opening 5, the with a perpendicular to the strip running direction L (arrow) extending and preferably within the loop of the circulating belt 2 to be cleaned arranged Fluidquerverteilrohr 6, in particular Heilquerverteilrohr, for acting on the circulating belt 2 with a fluid 7 certain pressure.
  • the cleaning device 1 can find its application in a wire section and / or in a press section of a paper or board machine.
  • the circulating belt 2 to be cleaned can be, for example, a screen belt, in particular a forming wire or the like.
  • FIG. 1 It can be seen that a at least over a substantial part of the drain bar 4 extending channel 9 from the interior of the Fluidquerverteilrohrs 6 out along the drain side side drain bar 4 runs to the drain edge 8, that the channel 9 opens approximately 20 mm in front of the drain edge 8 and that of Channel 9 has a clear height H K in the range of 5 to 8 mm.
  • the channel 9 may of course also be provided with a separate fluid supply, but the illustrated embodiment has a higher efficiency.
  • the embodiment of the FIG. 1 be provided with other components, in particular a spray tube or a high-pressure cleaning device.
  • FIGS. 2A and 2B show two further embodiments of a second cleaning device 1 according to the invention in each case a schematic side view.
  • the run-off strip 4 has a discharge edge 8, which acts on fluid 7 exiting from the fluid transverse distribution tube 6 via a plurality of channels 9 and / or grooves 10.
  • the run-off edge 8 is offset against the strip running direction L (arrow) to the run-off strip 4 and thereby forms a discharge chamber 11 acted upon by the fluid 7.
  • FIGS. 3A to 3C show three bottom views of different embodiments of a third cleaning device 1 according to the invention.
  • the run-off edge 8 is rectilinear ( FIGS. 3B and 3C ) or structured ( FIG. 3A ) and with or without interruptions ( FIGS. 3A and 3B ) is trained.
  • the structuring can be continuous, in particular undulating, and / or discontinuous, in particular zigzag-shaped.
  • the embodiment of the FIG. 3C has channels 9, in particular holes, which extend from the interior of the Fluidquerverteilrohrs through the drain bar 4 to the drain edge 8 and the drain chamber 11 and a diameter D of 0.2 to 5 mm, preferably from 1 to 4 mm, have (see FIG. 3B ).
  • the channels 9 can of course have different diameters D and different courses within the drain bar 4.
  • FIGS. 3A and 3B have grooves 10, the lower side of the drain bar 4 from the blowing opening 5 to the drain edge 8 and the drain chamber 11 and a groove width B and / or groove depth T from 0.2 to 5 mm, preferably from 1 to 4 mm, have (see FIG. 2A ).
  • the channels 9 and / or grooves 10 have a respective distance A of 5 to 15 mm, preferably 7 to 12 mm, and a constant or approximately constant pitch F over the length of the drain bar 4.

Landscapes

  • Paper (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Claims (9)

  1. Machine de fabrication d'une nappe fibreuse, en particulier d'une nappe de papier ou de carton, qui présente une bande sans fin (2), en particulier une bande de tamis ou de feutre, et un dispositif (1) de nettoyage de la bande sans fin (2) qui présente deux lattes parallèles l'une à l'autre et disposées perpendiculairement à la direction (L) d'avancement de la bande, balayées par la bande sans fin (2), à savoir une latte amont (3) et une latte aval (4) avec une ouverture de soufflage (5) formée entre les deux lattes (3, 4) et reliée à un tube transversal (6) de répartition de fluide et en particulier un tube transversal de répartition d'air qui s'étend perpendiculairement à la direction (L) d'avancement de la bande et qui est disposé de préférence à l'intérieur de la boucle de la bande sans fin (2) à nettoyer pour envoyer un fluide (7) sur la bande sans fin (2),
    caractérisée en ce que
    la latte amont (4) présente un bord aval (8) qui reçoit le fluide (7) qui sort du tube transversal (6) de répartition de fluide par l'intermédiaire d'au moins un canal (9) et/ou de rainures (10).
  2. Machine selon la revendication 1, caractérisé en ce que le bord amont (8) est décalé par rapport au bord aval (4) dans la direction opposée à la direction (L) d'avancement de la bande et forme ainsi un espace aval (11) alimenté en fluide (7) et dont la hauteur est de l'ordre de 2 à 10 mm.
  3. Machine selon les revendications 1 ou 2,
    caractérisée en ce que le bord amont (8) a une forme rectiligne ou structurée avec ou sans interruptions.
  4. Machine selon les revendications 1, 2 ou 3,
    caractérisée en ce que plusieurs canaux (9), en particulier des alésages, partent de l'espace intérieur du tube transversal (6) de répartition d'air pour s'étendre à travers la latte amont (4) jusqu'au bord amont (8) ou à l'espace aval (11) et présentent un diamètre (D) de 0,2 à 5 mm et de préférence de 1 à 4 mm.
  5. Machine selon les revendications précédentes, caractérisée en ce que les rainures (10) s'étendent sur le côté inférieur de la latte aval (4) entre l'ouverture de soufflage (5) et le bord aval (8) ou l'espace aval (11) et ont une largeur (B) et/ou une profondeur (T) de 0,2 à 5 mm et de préférence de 1 à 4 mm.
  6. Machine selon l'une des revendications précédentes, caractérisée en ce que les canaux (9) et/ou les rainures (10) présentent un écartement mutuel (A) de 5 à 15 mm et de préférence de 7 à 12 mm.
  7. Machine selon l'une des revendications précédentes, caractérisée en ce que les canaux (9) et/ou les rainures (10) ont un pas (F) constant ou approximativement constant sur toute la longueur de la latte aval (4).
  8. Machine selon les revendications 1, 2 ou 3,
    caractérisée en ce qu'un canal (9) qui s'étend au moins sur une partie essentielle de la latte aval (4) part de l'espace intérieur du tube transversal (6) de répartition de fluide et s'étend le long du côté aval de la latte aval (4) jusqu'au bord aval (8), en ce que le canal (9) débouche environ 20 mm en amont du bord aval (8) et en ce que le canal (9) a une hauteur intérieure (HK) de l'ordre de 5 à 8 mm.
  9. Machine selon l'une des revendications précédentes, caractérisée en ce que la bande sans fin (2) est une bande de tamisage et en particulier un tamis de formation.
EP04101377A 2003-04-04 2004-04-02 Appareil de nettoyage d'une bande en mouvement Expired - Lifetime EP1464754B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE10315536 2003-04-04
DE2003115536 DE10315536A1 (de) 2003-04-04 2003-04-04 Reinigungsvorrichtung
DE10330015 2003-07-03
DE2003130015 DE10330015A1 (de) 2003-07-03 2003-07-03 Vorrichtung zum Reinigen eines umlaufenden Bandes
DE10350766 2003-10-30
DE2003150766 DE10350766A1 (de) 2003-10-30 2003-10-30 Vorrichtung zum Reinigen eines umlaufenden Bandes

Publications (3)

Publication Number Publication Date
EP1464754A2 EP1464754A2 (fr) 2004-10-06
EP1464754A3 EP1464754A3 (fr) 2005-10-26
EP1464754B1 true EP1464754B1 (fr) 2008-05-14

Family

ID=32853914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101377A Expired - Lifetime EP1464754B1 (fr) 2003-04-04 2004-04-02 Appareil de nettoyage d'une bande en mouvement

Country Status (3)

Country Link
EP (1) EP1464754B1 (fr)
AT (1) ATE395459T1 (fr)
DE (1) DE502004007102D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004059030A1 (de) * 2004-12-08 2006-06-14 Voith Paper Patent Gmbh Reinigungsvorrichtung
US10201840B2 (en) 2012-04-11 2019-02-12 Gpcp Ip Holdings Llc Process for cleaning a transport belt for manufacturing a paper web

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4018074C2 (de) 1990-06-06 1995-09-14 Voith Gmbh J M Vorrichtung zum Reinigen eines umlaufenden Papiermaschinensiebes
ES2112273T3 (es) * 1991-01-18 1998-04-01 Voith Gmbh J M Dispositivo para la limpieza de un tamiz de circulacion continua asi como seccion de tamices de una maquina para la fabricacion de bandas de materia fibrosa.
DE4327601C1 (de) * 1993-08-17 1995-01-05 Voith Gmbh J M Vorrichtung zum Reinigen eines umlaufenden Siebes
DE4402279C2 (de) * 1994-01-27 1997-04-24 Voith Gmbh J M Verfahren und Vorrichtung zum Reinigen eines umlaufenden Papiermaschinensiebes
DE19712998C2 (de) * 1997-03-27 1999-05-12 Voith Sulzer Papiermasch Gmbh Vorrichtung zum Reinigen eines Transportbandes
US5919338A (en) * 1997-10-20 1999-07-06 Beloit Technologies, Inc. Cleaning apparatus for a papermachine forming wire
DE19940980A1 (de) * 1999-08-28 2001-03-01 Voith Paper Patent Gmbh Vorrichtung zum Reinigen eines maschinenbreiten Ablaufzwickels in einer Papier- oder Kartonherstellungsmaschine
JP2002180392A (ja) * 2000-12-15 2002-06-26 Horikawa Seisakusho:Kk ワイヤ洗浄装置

Also Published As

Publication number Publication date
EP1464754A2 (fr) 2004-10-06
DE502004007102D1 (de) 2008-06-26
EP1464754A3 (fr) 2005-10-26
ATE395459T1 (de) 2008-05-15

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