EP1116822B1 - Dispositif pour décharger l' eau - Google Patents

Dispositif pour décharger l' eau Download PDF

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Publication number
EP1116822B1
EP1116822B1 EP00128157A EP00128157A EP1116822B1 EP 1116822 B1 EP1116822 B1 EP 1116822B1 EP 00128157 A EP00128157 A EP 00128157A EP 00128157 A EP00128157 A EP 00128157A EP 1116822 B1 EP1116822 B1 EP 1116822B1
Authority
EP
European Patent Office
Prior art keywords
chamber
water
discharging water
machine width
press
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
EP00128157A
Other languages
German (de)
English (en)
Other versions
EP1116822A3 (fr
EP1116822A2 (fr
Inventor
Karl Dr. Steiner
Robert Wolf
Hans Prinzing
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 DE20000599U external-priority patent/DE20000599U1/de
Priority claimed from DE10014873A external-priority patent/DE10014873A1/de
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to EP05108375A priority Critical patent/EP1619300B1/fr
Publication of EP1116822A2 publication Critical patent/EP1116822A2/fr
Publication of EP1116822A3 publication Critical patent/EP1116822A3/fr
Application granted granted Critical
Publication of EP1116822B1 publication Critical patent/EP1116822B1/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
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • 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
    • D21F1/48—Suction apparatus
    • 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
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0272—Wet presses in combination with suction or blowing devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/07—Water collectors, e.g. save-alls

Definitions

  • the invention relates to a water discharge device for a paper machine or the like, in particular for a felted press of such a paper machine, with a collecting trough extending at least substantially over the machine width according to the preamble of claim 1.
  • Such a drainage device is for example off US-A-3355350 known.
  • a suction box for sucking water passing through a sieve has already become known, which is subdivided into a water suction chamber and an air suction chamber by a dividing wall provided with passages.
  • An object of the invention is to provide an improved water drainage device of the type mentioned, in which a reduction of the outflow cross section of the trough accompanied by a corresponding saving in space is possible without problems.
  • the two chambers are preferably connected to each other via a plurality of openings which are distributed over the machine width.
  • the water is discharged from the second chamber on at least one of the two sides of the machine.
  • the tubes suitably have a diameter of about 10 to about 100 mm.
  • the vacuum of the second chamber is advantageously less than about 0.2 bar, preferably less than or equal to about 0.05 bar.
  • the drip pan can be divided into segments across the machine width. However, it can also be carried out continuously over the machine width.
  • the water can, for example, be sucked out of the trough or gutter in a manner similar to that in drying cylinders or as the oil in NFP presses.
  • a small amount of air can be sucked with, for example, some 1 / s.
  • a pressure difference Dp 5000 N / m 2
  • a volume flow of V-air of substantially less than 0.5 m 3 / min can result.
  • FIGS. 1 to 9 each show in a purely schematic representation of a water discharge device 10 for a paper machine and the like, which can be used in particular for a felted press 12.
  • a water discharge device 10 for a paper machine and the like, which can be used in particular for a felted press 12.
  • a double-felted press cf. FIGS. 1 and 3
  • such a water discharge device 10 can be used in particular for the top felt.
  • Each of these drip pans 14 has a first chamber 18 which is under ambient pressure and which receives the incoming water 16 and a second chamber 20, which is acted upon by a vacuum and connected to the first chamber 20 which sucked the accumulating in the first chamber 18 water 16 and from which the water 16 is finally discharged.
  • At least one of the two chambers 18, 20 may extend at least substantially over the machine width.
  • the Wasserab fossil fuel 10 is associated with the upper felt 24 of a double-felted shoe press 12.
  • the connection openings 22 are provided in a lower area adjacent to the screen 24. Between the two chambers 18, 20, a partition wall 26 is provided, in which the openings 22 are left. Through these openings 22, the accumulating in the first chamber 18 water 16 enters the second chamber 20 acted upon with vacuum.
  • FIGS. 3 and 4 show a schematic representation of another embodiment of the water discharge device 10, in which the two chambers are connected to each other via a plurality of distributed over the machine width tubes 28.
  • These tubes 28 open at one end in each case in a respective connection opening 22 of the partition wall 26 and at its other end in the second chamber 20.
  • Wie in particular with reference to the FIG. 3 can be seen, the pipes in the region of the openings 22 are first led a little way into the second chamber 20 and then bent generally upward.
  • the upper pipe mouths are acted upon by the prevailing in the second chamber 20 vacuum, so that water is first sucked through the tubes 28 upwards and then flows in this chamber 20 down.
  • the water can be discharged laterally from the second chamber 20.
  • FIGS. 5 and 6 is shown in a schematic representation of another embodiment of a water discharge device 10 which is provided with the water 16 to the edge of the paper machine laxative pipes 30.
  • the second chamber 20 is bounded by a transversely extending, vacuum-loaded tube 32 in whose jacket the Openings 22 are provided, via which the first chamber 18 is connected to the second chamber 20 formed by the tube interior.
  • the speed of the spray water 16 is used similar to a Saugschnabelsiphon for water removal.
  • the water is sucked here again in the second chamber 20 and discharged via this.
  • the removal of water takes place via a suction pipe 34 through which the second chamber 20 is limited in the present case.
  • the jacket of the suction tube 34 is again provided with openings 22 through which the interior of the tube forming the second chamber 20 is connected to the first chamber 18.
  • the accumulating in the first chamber 18 water 16 is thus sucked through the openings 22 in the tube 20 and discharged via this.
  • the water discharge device 10 is assigned to a simply felted shoe press 12.
  • the Wasserabcultivated driving 10 is disposed in the outlet gusset between the felt 36 and the upper roller.

Landscapes

  • Paper (AREA)
  • Glass Compositions (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Press Drives And Press Lines (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Medicines Containing Plant Substances (AREA)

Claims (17)

  1. Dispositif d'évacuation d'eau (10) pour une machine à papier ou analogue, en particulier pour une presse à feutre (12) d'une telle machine à papier, avec une cuvette de collecte (14) s'étendant au moins essentiellement sur la largeur de la machine, dans lequel la cuvette de collecte (14) comprend une première chambre (18) se trouvant à la pression atmosphérique et recevant l'eau qui arrive (16), et une deuxième chambre (20) mise sous vide et communiquant avec la première, dans laquelle l'eau s'accumulant dans la première chambre (18) est aspirée et hors de laquelle l'eau est finalement évacuée, caractérisé en ce que le niveau de l'eau dans la deuxième chambre (20) est situé au-dessus du niveau de l'eau (H1) de la première chambre (18).
  2. Dispositif d'évacuation d'eau selon la revendication 1, caractérisé en ce qu'au moins une des deux chambres (18, 20) s'étend au moins essentiellement sur la largeur de la machine.
  3. Dispositif d'évacuation d'eau selon la revendication 1 ou 2, caractérisé en ce que les deux chambres (18, 20) sont raccordées l'une à l'autre par des ouvertures (22), qui sont réparties sur la largeur de la machine.
  4. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que l'eau est évacuée hors de la deuxième chambre (20) sur au moins un des deux côtés de la machine.
  5. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que les deux chambres (18, 20) sont raccordées l'une à l'autre par des ouvertures étranglées (22).
  6. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que la direction moyenne d'écoulement, c'est-à-dire la direction d'écoulement principale effective de l'écoulement d'eau prévalant dans la première chambre (18) est au moins sensiblement libre d'écoulement transversal.
  7. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que la direction moyenne d'écoulement, c'est-à-dire la direction d'écoulement principale effective prévalant dans la deuxième chambre (20) comporte une composante transversale orientée dans la direction de la largeur de la machine.
  8. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que les deux chambres (18, 20) sont raccordées l'une à l'autre par au moins un tube (28), qui débouche par une extrémité dans une ouverture de raccordement respective (22) dans une paroi de séparation (26) prévue entre les chambres (18, 20) et avec son autre extrémité dans la deuxième chambre (20).
  9. Dispositif d'évacuation d'eau selon la revendication 8, caractérisé en ce qu'il est prévu plusieurs tubes (28) répartis sur la largeur de la machine.
  10. Dispositif d'évacuation d'eau selon la revendication 9, caractérisé en ce qu'il est prévu environ 0,5 à 5 tubes (28) par mètre.
  11. Dispositif d'évacuation d'eau selon l'une quelconque des revendications 8 à 10, caractérisé en ce que les tubes (28) présentent un diamètre d'environ 10 à environ 100 mm.
  12. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que le vide dans la deuxième chambre (20) est inférieur à environ 0,2 bar et de préférence inférieur ou égal à environ 0,05 bar.
  13. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que la deuxième chambre (20) est limitée par un tube (32) mis sous vide et s'étendant en direction transversale, dont l'enveloppe est pourvue d'ouvertures (22) par lesquelles la première chambre (18) est raccordée à la deuxième chambre (20) formée par l'espace intérieur du tube.
  14. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que la cuvette de collecte (14) est divisée en segments sur la largeur de la machine.
  15. Dispositif d'évacuation d'eau selon l'une quelconque des revendications 1 à 13, caractérisé en ce que la cuvette de collecte (14) est continue sur la largeur de la machine.
  16. Dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes, caractérisé en ce que le vide régnant dans la deuxième chambre (20) est produit par une pompe volumétrique.
  17. Utilisation du dispositif d'évacuation d'eau selon l'une quelconque des revendications précédentes pour une installation de presse servant à l'essorage d'une bande de matière fibreuse, en particulier d'une bande de papier ou de carton, et présentant au moins une fente de pressage prolongée dans la direction de défilement de la bande.
EP00128157A 2000-01-14 2000-12-21 Dispositif pour décharger l' eau Expired - Lifetime EP1116822B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05108375A EP1619300B1 (fr) 2000-01-14 2000-12-21 Dispositif de pressage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20000599U DE20000599U1 (de) 2000-01-14 2000-01-14 Wasserabführeinrichtung
DE20000599U 2000-01-14
DE10014873A DE10014873A1 (de) 2000-01-14 2000-03-24 Pressanordnung
DE10014873 2000-03-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP05108375A Division EP1619300B1 (fr) 2000-01-14 2000-12-21 Dispositif de pressage

Publications (3)

Publication Number Publication Date
EP1116822A2 EP1116822A2 (fr) 2001-07-18
EP1116822A3 EP1116822A3 (fr) 2002-07-31
EP1116822B1 true EP1116822B1 (fr) 2008-02-13

Family

ID=26005022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00128157A Expired - Lifetime EP1116822B1 (fr) 2000-01-14 2000-12-21 Dispositif pour décharger l' eau

Country Status (4)

Country Link
US (2) US6716315B2 (fr)
EP (1) EP1116822B1 (fr)
AT (2) ATE376604T1 (fr)
DE (2) DE50014738D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50014738D1 (de) * 2000-01-14 2007-12-06 Voith Patent Gmbh Pressenanordnung
DE10108517A1 (de) * 2001-02-22 2002-08-29 Voith Paper Patent Gmbh Feuchtequerprofil
US9118774B2 (en) 2005-07-21 2015-08-25 Google Inc. Dispatch system to remote devices
FI20051086A (fi) * 2005-10-27 2007-04-28 Upm Kymmene Corp Menetelmä ja laitteisto veden poistamiseksi huovasta

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1423400A (en) * 1922-07-18 Attachment for paper-making machines
US2165549A (en) * 1935-11-29 1939-07-11 Beloit Iron Works Paper machine suction slice
US2694347A (en) * 1950-08-31 1954-11-16 Beloit Iron Works Suction press roll arrangement
US2884061A (en) * 1956-11-09 1959-04-28 Kimberly Clark Co Flow control apparatus
US3072180A (en) * 1959-09-03 1963-01-08 Rice Barton Corp Flexible flow stabilizer
US3023805A (en) * 1960-02-29 1962-03-06 Beloit Iron Works Transfer press
US3160553A (en) * 1962-07-30 1964-12-08 Beloit Corp Suction roll scavenging means
US3214327A (en) * 1963-04-16 1965-10-26 Huyck Corp Papermakers' felts and method for dewatering paper and similar webs
US3347740A (en) * 1963-10-14 1967-10-17 Rice Barton Corp Method and apparatus for purging travelling felts
US3355350A (en) * 1964-12-18 1967-11-28 Allis Chalmers Mfg Co Paper machine
US3556940A (en) * 1968-04-08 1971-01-19 Beloit Corp Press assembly
US3775243A (en) * 1970-06-01 1973-11-27 Black Clawson Co Water saveall for grooved roll in paper machine press nip
DE2509057C3 (de) 1975-03-01 1978-11-09 J.M. Voith Gmbh, 7920 Heidenheim Saugvorrichtung für eine Papiermaschine
US4267017A (en) * 1980-01-09 1981-05-12 Beloit Corporation Drainage roof for twin wire roll former
US4686005B1 (en) * 1980-02-06 1995-10-17 Escher Wyss Gmbh Method of washing stock suspensions by removing undesired material through an endless revolving wire
US4443232A (en) * 1982-09-29 1984-04-17 Clark & Vicario Corporation Deaerated liquid stock supply
FI70950C (fi) * 1983-03-25 1986-10-27 Valmet Oy Pressparti med slutet drag i pappersmaskin
FI842114A (fi) * 1984-05-25 1985-11-26 Valmet Oy Pressparti med separata presszon i en pappersmaskin.
FI885606A (fi) * 1988-12-01 1990-06-02 Ahlstroem Valmet Banformningsfoerfarande och anordning.
US5487193A (en) * 1992-04-17 1996-01-30 Fluidmaster, Inc. Enhanced operation toilet
FI89728C (fi) * 1992-05-19 1993-11-10 Pom Dev Oy Ab Foerfarande och anlaeggning foer cirkulation av processvattnet i en pappersmaskin
US5505819A (en) * 1994-03-31 1996-04-09 Macmillan Bloedel Limited Neutral papermaking
DE4420801C2 (de) * 1994-06-16 1997-01-30 Voith Gmbh J M Verfahren zum Betreiben einer Doppelsiebzone einer Papiermaschine zur Herstellung von Faserstoffbahnen sowie Siebzone hierzu
FI100667B (fi) 1997-04-02 1998-01-30 Valmet Corp Formerin vedenpoistolaite
US5851358A (en) * 1997-04-08 1998-12-22 Voith Sulzer Paper Technology North America, Inc. Paper making machine with an integral suction chamber and air/water separator for a doctor element
DE19817300A1 (de) * 1998-04-18 1999-10-21 Voith Sulzer Papiertech Patent Preßspalt
DE50014738D1 (de) * 2000-01-14 2007-12-06 Voith Patent Gmbh Pressenanordnung
DE10014873A1 (de) * 2000-01-14 2001-07-19 Voith Paper Patent Gmbh Pressanordnung
DE10107328A1 (de) * 2001-02-16 2002-08-29 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Abführen von Siebwasser
US7351307B2 (en) * 2004-01-30 2008-04-01 Voith Paper Patent Gmbh Method of dewatering a fibrous web with a press belt

Also Published As

Publication number Publication date
US20010010259A1 (en) 2001-08-02
DE50014738D1 (de) 2007-12-06
ATE386153T1 (de) 2008-03-15
US6716315B2 (en) 2004-04-06
DE50014962D1 (de) 2008-03-27
US7189309B2 (en) 2007-03-13
EP1116822A3 (fr) 2002-07-31
US20040173332A1 (en) 2004-09-09
EP1116822A2 (fr) 2001-07-18
ATE376604T1 (de) 2007-11-15

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