EP0936302A2 - Appareil pour l' alimentation d' une suspension de fibres sur un dispositif d' essorage - Google Patents

Appareil pour l' alimentation d' une suspension de fibres sur un dispositif d' essorage Download PDF

Info

Publication number: EP0936302A2
Authority: EP; European Patent Office
Prior art keywords: eccentric; adjustable; eccentric shaft; partition; tip
Prior art date: 1998-02-05
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.): Granted

Application number

EP98124785A

Other languages

German (de)

English (en)

Other versions

EP0936302B1 (fr

EP0936302A3 (fr

Inventor

Wilhelm Dipl.-Ing. Mausser

Manfred Ing. Schmid

Walter Writzl

Rudolf Dipl.-Ing. Greimel

Harald Weigant

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.)

Andritz AG

Original Assignee

Andritz Patentverwaltungs GmbH

Andritz AG

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.)

1998-02-05

Filing date

1998-12-29

Publication date

1999-08-18

1998-12-29 Application filed by Andritz Patentverwaltungs GmbH, Andritz AG filed Critical Andritz Patentverwaltungs GmbH

1999-08-18 Publication of EP0936302A2 publication Critical patent/EP0936302A2/fr

2000-02-23 Publication of EP0936302A3 publication Critical patent/EP0936302A3/fr

2004-04-21 Application granted granted Critical

2004-04-21 Publication of EP0936302B1 publication Critical patent/EP0936302B1/fr

2018-12-29 Anticipated expiration legal-status Critical

Status 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
- D21F1/02—Head boxes of Fourdrinier machines
- 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
- D21F1/02—Head boxes of Fourdrinier machines
- D21F1/028—Details of the nozzle section

Definitions

the invention relates to a device for supplying a fiber suspension on a drainage device, especially for a Tissue machine.
Such devices also called headbox, affect the Paper formation and thus the paper quality is essential.
Headboxes are a regulation of the flow rate of the fiber suspension practically only accessible via printing.
two or Multilayer headboxes that affect the quality of the paper surface however, a different flow rate is possible, such as for different qualities of top and bottom Bottom are required, not realizable.
the aim of the invention is therefore the scope and Improve control options for headboxes.
the invention is therefore characterized in that to adjust the Height of the outlet gap between a minimum and maximum value one Eccentric shaft is provided. By adjusting the height of the Outlet gap, the flow rate of the Suspension stream according to the requirements of the end product to adjust. The use of an eccentric ensures one very precise adjustment of the discharge gap height.
a favorable further development of the invention is characterized in that that the upper lip is adjustable by means of an eccentric, and alternatively or the lower lip can also be adjustable by means of an eccentric.
the Adjustment of upper and / or lower lip enables depending on the version as a two- or multi-layer headbox the ideal conditions for Regulation of the flow rate of the individual layers.
An advantageous embodiment of the invention is characterized in that that the eccentric shaft is supported several times over the machine width, the support can take place at regular intervals.
a favorable embodiment of the invention is characterized in that that the eccentric shaft is connected to a geared motor.
the outlet height can also be adjusted while the paper machine is in operation and thus the flow rate of the fiber suspension accordingly be adjusted or regulated.
An advantageous development of the invention for a two-layer or Multilayer headbox is characterized in that for separation of the individual areas one or more one-piece, wedge-shaped Blade tip (s) made of steel is or are. So it is possible stable separation and therefore constant adjustment of the outlet gap heights to achieve even with different inlet pressures that a difference in speed between the individual suspension flows can be adjusted.
a favorable embodiment of the invention is characterized in that that the lamella tip (s) against the partition by means of a tie rod are biased to the feeder. This makes it particularly stable and this enables exact adjustment of the outlet gap heights.
a favorable further development of the invention is characterized in that that the distance from the lower lip and / or upper lip to the slat tip is adjustable. This allows the slat tip to be fixed and very stable be carried out.
An advantageous development of the invention is characterized in that that a partition - slat tip unit adjustable by means of an eccentric is. Due to the adjustable design of a partition - lamella tips - Unit will also have an independent adjustment of the outlet gap heights with multi-layer headboxes.
FIG. 1 shows a two-layer headbox according to the invention
FIG. 1a a detail from Fig. 1
Fig. 2 shows a three-layer headbox
Fig. 2a shows a detail from FIG. 2
FIG. 3 a section along line III-III in FIG. 2
FIG. 4 a Monolayer headbox represents according to the invention.
Fig. 1 sets up a device for supplying fiber suspensions a drainage device, in particular for a tissue machine, in the form of a two-layer headbox.
the suspension fed simultaneously via two channels 1 across the machine direction, then the flow direction of the suspension is 90 degrees in Machine direction redirected.
the suspension through two turbulence generating chambers 2 into the nozzle areas executed discharge chambers 3, 4, the end of which the Leaves device and strikes the drainage device.
the two nozzle spaces 3, 4 are separated by a wall 8, which means cannulated screws 9 is biased against the support body 10.
At the outlet end of the partition 8 there is a one-piece, Wedge-shaped lamellar tip 12 made of stainless steel, which by means of tie rods 13 is biased against the partition 8.
the partition 8 and the Lamella tip 12 form a solid in the assembled state Separating element between the two nozzle spaces 3, 4.
This pivoting movement is carried out by an eccentric shaft 16, 16 ', across the machine width, at regular intervals in bearings 17, 17 'are supported on the rigid cover plates 20, 20' of the device.
the eccentricity e of the shafts allows the gap heights to be adjusted a or b between a minimum and maximum value.
the construction is designed so that even with constant turning the eccentric shaft 16, 16 'by a drive 22, the upper lip 18th and the lower lip 18 'never in contact with the blade tip 12 come and thus no damage can occur.
the paper quality increases in the operating mode same types of fabric "in both chambers or a very good separation (covering) of the layers in the operating mode different types of fabric "in both chambers compared to single-layer headboxes or multi-layer headboxes with flexible separating elements at the outlet of the nozzle areas, which do not allow a difference between the two layers of material.
FIG. 1a shows a detail of the outlet gap in FIG. 1. It is clearly shown here different size of the outlet gaps a (nozzle space 3) and b (Nozzle area 4) recognizable.
Fig. 2 now shows a three-layer headbox, the suspension at the same time into the device via three channels 1 transversely to the machine direction, then the direction of flow of the suspension 90 degrees in the machine direction is redirected.
the suspension then flows through three turbulence generating chambers 2 in the nozzle chambers called 3, 4, 5 at the end of which they leave the device and on the Dewatering machine.
it is between two sieves 24, 24 ', which run around two rollers 25, 25', are injected.
the two nozzle spaces 4, 5 become analogous to the embodiment in FIG. 1 separated by a wall 8, at the end of which is a one-piece, wedge-shaped Blade tip 12 made of stainless steel.
the partition 8 and in the assembled state, the lamella tip 12 form a firm, non-adjustable separating element between the two nozzle spaces 4, 5. Due to its bias against the support body 10 it is enables differences up to 0.5 bar and therefore different Flow rates of the fiber suspensions in both layers to achieve.
the two nozzle spaces 3, 4 are separated by a partition 6, which is rotatably mounted about an axis 7 at the outlet end of the Partition 6 is also a one-piece lamella tip 12 ' Stainless steel, which is prestressed against the partition 6 by means of tie rods 11 becomes.
the partition 6 and the lamella tip 12 'thus form a rigid one Separating element which, however, is pivoted as a whole about the axis of rotation 7 can be. This swivel movement is carried out by a Eccentric shaft 15, which is regular across the machine width Distances in bearings 19 supported on the rigid rear wall 23 of the device are.
the eccentricity e makes it possible to set the outlet gap height c des Nozzle space 4 between a minimum and maximum value and one Fixation of the same.
the outlet gap heights a and b of the two nozzle chambers 3 and 5 can also be between a minimum and Maximum value can be set and fixed.
the upper lip 18 or lower lip 18 'pivoted about the joints 14, 14'. Is performed this pivoting movement by an eccentric shaft 1, 16 ', which on the Machine width at regular intervals in bearings 17, 17 'on the rigid cover plates 20, 20 'of the device are supported.
the eccentricity e of the shafts 16, 16 ' enables the gap heights a to be adjusted and b between a minimum and maximum value.
the construction is designed so that even with constant turning the eccentric shafts 16, 16 'through a drive 22 the upper lip 18 and the lower lip 18 'never in contact with the lamella tips 12, 12 'come and thus no damage can occur. This also applies to all positions of the movable partition 6 Blade tip 12 '.
Fig. 2a shows a detail of the outlet gap in Fig. 2. You can see the different settings of the outlet gap heights a (nozzle area 3), b (nozzle area 5) and c (nozzle area 4).
FIG. 3 shows a section along line III-III in FIG. 1 and analogously in FIG. 2.
the eccentric shaft 16 is shown, the multiple over the Machine width is supported in bearings 17.
Fig. 4 shows the example of a single-layer headbox.
a rigid one Lower lip 21 provided.
the outlet gap height and the associated Contour angle ⁇ can also via an eccentric shaft 16, which can optionally be driven by a geared motor 22, be set accordingly. This allows the flow rate regulate the jet and thus influence the paper quality accordingly.
the invention is not restricted to the examples shown. It can e.g. other types of execution of the middle slat be provided.

Landscapes

Paper (AREA)
Preliminary Treatment Of Fibers (AREA)

EP98124785A 1998-02-05 1998-12-29 Appareil pour l' alimentation d' une suspension de fibres sur un dispositif d' essorage Expired - Lifetime EP0936302B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AT0020798A AT406172B (de)	1998-02-05	1998-02-05	Vorrichtung zur zufuhr einer faserstoffsuspension auf eine entwässerungseinrichtung
AT20798		1998-02-05

Publications (3)

Publication Number	Publication Date
EP0936302A2 true EP0936302A2 (fr)	1999-08-18
EP0936302A3 EP0936302A3 (fr)	2000-02-23
EP0936302B1 EP0936302B1 (fr)	2004-04-21

Family

ID=3484343

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98124785A Expired - Lifetime EP0936302B1 (fr)	1998-02-05	1998-12-29	Appareil pour l' alimentation d' une suspension de fibres sur un dispositif d' essorage

Country Status (6)

Country	Link
US (2)	US6319366B1 (fr)
EP (1)	EP0936302B1 (fr)
AT (1)	AT406172B (fr)
BR (1)	BR9900536B1 (fr)
DE (1)	DE59811238D1 (fr)
ES (1)	ES2218752T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10106684A1 (de) *	2001-02-14	2002-08-29	Voith Paper Patent Gmbh	Lamelle eines Stoffauflaufs einer Papier-, Karton- oder Tissuemaschine
DE10159412A1 (de) *	2001-12-04	2003-06-12	Voith Paper Patent Gmbh	Stoffauflauf
US8060363B2 (en) *	2007-02-13	2011-11-15	Nokia Corporation	Audio signal encoding
DE102008000175A1 (de) *	2008-01-30	2009-08-06	Voith Patent Gmbh	Mehrschichtenstoffauflauf für eine Maschine zur Herstellung einer mehrschichtigen Faserstoffbahn
DE102008043145A1 (de) *	2008-10-24	2010-04-29	Voith Patent Gmbh	Zweischichtenstoffauflauf für eine Maschine zur Herstellung einer zweischichtigen Faserstoffbahn
EP2199459A1 (fr) *	2008-12-16	2010-06-23	Voith Patent GmbH	Système de formation de feuille pour une machine destinée à la fabrication d'une bande de matière fibreuse multicouche

Family Cites Families (19)

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Publication number	Priority date	Publication date	Assignee	Title
US2005839A (en) *	1933-01-26	1935-06-25	Downingtown Mfg Co	Cylinder machine
US2615374A (en) *	1948-10-04	1952-10-28	Dominion Eng Works Ltd	Slice assembly for papermaking machines
US3556935A (en) *	1968-04-03	1971-01-19	Procter & Gamble	Papermaking headbox with adjustable hydraulic nozzle and slice
CH564639A5 (fr) *	1973-04-17	1975-07-31	Escher Wyss Gmbh
SE7707981L (sv) *	1976-12-02	1978-06-03	Ahlstroem Dev Gmbh	Anordning for paverkan av ett banformigt material
DE3010730C2 (de) *	1980-03-20	1983-01-05	J.M. Voith Gmbh, 7920 Heidenheim	Stoffauflauf für eine Papiermaschine
AT377026B (de) *	1980-12-19	1985-01-25	Escher Wyss Gmbh	Stoffauflauf fuer eine papiermaschine
FI78750B (fi) *	1982-07-20	1989-05-31	Escher Wyss Gmbh	Flerskiktsinloppslaoda foer matande av pappersmassa till en vira.
DE3348218C2 (fr) *	1983-06-09	1990-05-10	Sulzer-Escher Wyss Gmbh, 7980 Ravensburg, De
DE3535849A1 (de) *	1985-10-08	1987-04-09	Voith Gmbh J M	Stellvorrichtung fuer eine lippe eines papiermaschinen-stoffauflaufs
CH672515A5 (fr) *	1987-02-02	1989-11-30	Escher Wyss Gmbh
US4892623A (en) *	1989-02-17	1990-01-09	Process Automation Business, Inc.	Two-speed stepper actuator
US4975151A (en) *	1989-02-17	1990-12-04	Process Automation Business Inc.	Two-speed single lever stepper actuator
FI92230C (fi) *	1993-07-01	1994-10-10	Valmet Paper Machinery Inc	Menetelmä monikerrosperälaatikon säädössä ja monikerrosperälaatikko
DE4440079C2 (de) *	1994-11-10	1997-10-02	Voith Sulzer Papiermasch Gmbh	Mehrschichten-Stoffauflauf
US5578172A (en) *	1994-12-20	1996-11-26	Voith Sulzer Papiermaschinen Gmbh	Slice beam support plate
DE19624052A1 (de) *	1996-06-17	1996-12-12	Voith Sulzer Papiermasch Gmbh	Dreischichtenstoffauflauf
DE19652983A1 (de) *	1996-12-19	1997-05-28	Voith Sulzer Papiermasch Gmbh	Trennelement eines Mehrschichtenstoffauflaufes
DE19652982A1 (de) *	1996-12-19	1997-05-22	Voith Sulzer Papiermasch Gmbh	Lösbare Verbindungsvorrichtung zum Trennelement eines Mehrschichtenstoffauflaufes

1998
- 1998-02-05 AT AT0020798A patent/AT406172B/de not_active IP Right Cessation
- 1998-12-29 DE DE59811238T patent/DE59811238D1/de not_active Expired - Lifetime
- 1998-12-29 EP EP98124785A patent/EP0936302B1/fr not_active Expired - Lifetime
- 1998-12-29 ES ES98124785T patent/ES2218752T3/es not_active Expired - Lifetime
1999
- 1999-02-04 BR BRPI9900536-0A patent/BR9900536B1/pt not_active IP Right Cessation
- 1999-02-05 US US09/245,552 patent/US6319366B1/en not_active Expired - Lifetime
2001
- 2001-10-02 US US09/969,485 patent/US6475345B2/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
BR9900536A (pt)	2000-04-18
AT406172B (de)	2000-03-27
ATA20798A (de)	1999-07-15
EP0936302B1 (fr)	2004-04-21
US6475345B2 (en)	2002-11-05
BR9900536B1 (pt)	2009-05-05
US20020060038A1 (en)	2002-05-23
DE59811238D1 (de)	2004-05-27
ES2218752T3 (es)	2004-11-16
US6319366B1 (en)	2001-11-20
EP0936302A3 (fr)	2000-02-23

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Publication	Publication Date	Title
DE3514554C2 (de)	1994-06-16	Stoffauflauf-Vorrichtung für eine Papiermaschine und Verfahren zu deren Betrieb
DE2824608C2 (de)	1986-08-07	Stoffauflauf für eine Papiermaschine
EP1219747B2 (fr)	2007-10-10	Procédé pour nettoyer une bande de transport
EP0711869A2 (fr)	1996-05-15	Caisse de tête à plusieurs couches
DE3315023A1 (de)	1983-11-10	Formschuh fuer den former einer papiermaschine
EP0681057B1 (fr)	2002-08-28	Caisse de tête à plusieurs couches
EP0761877A2 (fr)	1997-03-12	Dispositif d'application directe ou indirecte de matériau fluide ou pâteux sur une bande en mouvement, en particulier de papier ou carton
EP0639239B1 (fr)	1999-01-20	Systeme permettant d'influer sur la vitesse de jet dans une caisse de tete pour application de plusieurs couches
DE8417329U1 (de)	1984-10-11	Stoffauflauf fuer eine papiermaschine
DE19651739A1 (de)	1998-06-18	Auftragwerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Streichmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE3109227C2 (de)	1984-09-20	Stoffaustrittsschlitz für den Stoffauslauf von Papiermaschinen
DE3126460A1 (de)	1982-12-02	Stoffauflaufvorrichtung fuer eine papiermaschine
DE29613687U1 (de)	1996-10-24	Auftragwerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Streichmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
EP0936302B1 (fr)	2004-04-21	Appareil pour l' alimentation d' une suspension de fibres sur un dispositif d' essorage
DE29622365U1 (de)	1997-06-19	Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE3727811A1 (de)	1988-03-17	Verfahren und vorrichtung an der siebpartie einer papiermaschine
DE2607822A1 (de)	1977-08-04	Stoffauflaufvorrichtung einer papiermaschine
DE2736644B1 (de)	1978-12-14	Stoffauflauf
DE4328997C2 (de)	1998-07-02	Naßpartie eines Doppelsieb-GAP-Formers
DE2800547B2 (de)	1980-11-27	Stoffauflauf für Papiermaschinen
EP0945385B1 (fr)	2002-10-02	Triangle plieur d'un appareil de pliage d'une machine d'impression rotative
EP0936301B1 (fr)	2003-11-26	Appareil pour l' alimentation d' une suspension de fibres sur un dispositif d' essorage
EP1489224A1 (fr)	2004-12-22	Caisse de tête
DE2622046A1 (de)	1977-06-23	Vliesformeinrichtung fuer papiermaschinen mit siebformwalze
DE3639823C2 (fr)	1988-11-24