EP1260633A2 - Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, et procédé et système pour la surveillance d'un élément de drainage - Google Patents

Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, et procédé et système pour la surveillance d'un élément de drainage Download PDF

Info

Publication number
EP1260633A2
EP1260633A2 EP02010416A EP02010416A EP1260633A2 EP 1260633 A2 EP1260633 A2 EP 1260633A2 EP 02010416 A EP02010416 A EP 02010416A EP 02010416 A EP02010416 A EP 02010416A EP 1260633 A2 EP1260633 A2 EP 1260633A2
Authority
EP
European Patent Office
Prior art keywords
ceramic
machine
temperature
control system
limit value
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.)
Granted
Application number
EP02010416A
Other languages
German (de)
English (en)
Other versions
EP1260633A3 (fr
EP1260633B1 (fr
Inventor
Günter Dr. Halmschlager
Herbert Haunlieb
Christoph Haase
Stefan Lehner-Dittenberger
Rüdiger Keinberger
Helmut Fitzke
Herbert Boden
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
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 DE2001123529 external-priority patent/DE10123529A1/de
Priority claimed from DE2001163575 external-priority patent/DE10163575A1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1260633A2 publication Critical patent/EP1260633A2/fr
Publication of EP1260633A3 publication Critical patent/EP1260633A3/fr
Application granted granted Critical
Publication of EP1260633B1 publication Critical patent/EP1260633B1/fr
Anticipated expiration legal-status Critical
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
    • D21F1/48—Suction apparatus
    • D21F1/52—Suction boxes without rolls
    • D21F1/523—Covers thereof
    • 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
    • D21F1/483—Drainage foils and bars
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]

Definitions

  • the invention relates to a machine for producing a fibrous web, in particular a paper, cardboard or tissue web, from a fibrous suspension, with a sheet formation area in which the fibrous web that is formed is guided over at least one suction box by means of at least one porous covering, in particular a screen belt , which consists of a basic box, which has at least one connection including line for at least one vacuum source and which consists of at least one suction box cover, which consists of at least two transverse to the machine direction, delimiting a suction slot and each consisting of a basic body and at least one ceramic drainage elements , in particular drainage strips, is formed, preferably in the two edge zones of the covering the at least one suction slit being delimited by a format slide consisting of a base body and at least one ceramic.
  • the term sheet forming unit encompasses both a former, for example a twin-wire former or a hybrid former, and a wire section, in particular a four-wire section.
  • the invention further relates to a method and a system for monitoring a drainage element comprising at least one ceramic Paper machine.
  • Such a suction box is for example from the German patent DE-PS 233 618 and from European patent application EP 0 831 173 A2 (PB10359 EP) of the applicant.
  • a fibrous web in particular a paper, cardboard or tissue web made of a fiber suspension
  • the resulting thermal stress can have a detrimental effect in particular in that Thermal stresses can occur in the ceramic, causing the ceramic to break lead, and that the glue point between the ceramic and the base body can become soft, resulting in the danger of slipping or loosening of the ceramic brings with it.
  • the temperature is measured in the ceramic close to the surface and for case 2 the temperature is measured at the glue point.
  • At least one drainage element and / or a format slide has at least one removable edge piece in which at least one temperature sensor is integrated.
  • this temperature sensor By means of this temperature sensor, the temperature in the ceramic and / or the temperature at an adhesive point between the ceramic and the associated base body and / or the temperature in the base body can be measured, thus ensuring both economical and reliable control of the drainage elements in question and occurrence possible damage can be avoided.
  • the removable edge piece also creates an ideal prerequisite both for simple and inexpensive retrofitting of a temperature measurement system and for quick and inexpensive interchangeability of temperature sensors on existing drainage elements.
  • the temperature sensor is arranged in the ceramic, close to the ceramic surface at which the maximum temperature occurs and at any point over the width of the drainage element that is affected by the covering.
  • the maximum temperature usually occurs on edges where the covering runs or runs off.
  • the temperature sensor is arranged in a recess in the ceramic.
  • the recess in the ceramic is preferably produced before sintering, that is to say in the green state of the ceramic.
  • the advantage of this method of manufacture is that no residual stresses are introduced into the ceramic or into the area around the recess or opening.
  • the recess can be produced in particular in a pressing process.
  • the distance between the measuring points can be, for example, in each case be about 500 mm.
  • thermocouple is preferably provided as the temperature sensor since such thermocouples in the past with respect to the ratio Value for money, operational safety and maintenance behavior recommended to have.
  • the basic body of the drainage element preferably consists of a GRP material. Such a material has so far been found in the paper industry well proven.
  • Ceramic is from a cost and process technology point of view the drainage element and / or the format slide as a ceramic plate formed and preferably has a height in the range of 1 mm to 10 mm, preferably from 2 mm to 6 mm.
  • the format slide is across Slidable to machine direction.
  • the format slide is either made in one part or in several parts, each with a preferably constant height. In both design variants, it can be provided with at least one height adjustment mechanism, the height adjustment mechanism in a preferred embodiment consisting of at least one adjustment screw together with the associated fixing screw. In a further embodiment, which is not shown, the height can also be adjusted by grinding the format slide jointly with the drainage element.
  • the format slider has an extension that is towards extends the middle of the machine and preferably touches the fabric. Furthermore, it is preferably permeable to a fluid, for example air or water.
  • the extension - seen from above - is wedge-shaped and / or perforated so that the Permeability to the fluid is favored.
  • the format slider can also be used essentially the same surface profile affected by the covering as have the drainage element.
  • the object of the invention is an improved one Process and an improved system of the type mentioned indicate with which an economic and reliable control of the concerned Drainage elements is guaranteed and the occurrence of possible Damage is avoided.
  • the softening point of the glue is less than the temperatures that cause failure of the thermal voltages Lead ceramics. It is therefore advantageous to check the temperature at the glue point. If the adhesive softens, the location of the individual ceramic sheets may change become unstable. This allows the leaflet to be immersed further in the sieve and thereby be exposed to higher thermal stresses, resulting in can lead to failure. Moreover, by changing the situation of the sieve wear and the negative effects on the Have paper or cardboard formation. With the method according to the invention can be counteracted.
  • the temperature measurement is part of a control system, which moreover adapts to the Temperature measurement, subsequent signal conversion and one using the process control system Data processing to be performed includes.
  • the temperature is advantageously in of the ceramic measured near the ceramic surface at which the maximum temperature occurs.
  • the maximum temperature usually occurs on edges where the screen accumulates or expires.
  • a temperature measurement without mechanical contact so called “hot” place e.g. with the help of infrared is therefore not very useful.
  • the process creates a recess in the ceramic, into the recess Temperature sensor used and inserted into the recess by means of this Temperature sensor measured the temperature in the ceramic.
  • the Recess in the ceramic preferably before sintering, that is in green state of the ceramics.
  • the advantage of this procedure according to the invention is that there are no residual stresses in the ceramic or in the Area to be introduced around the recess or opening.
  • the recess can be generated in particular in a pressing process.
  • At least one of the following steps can be initiated: To change the spray water flow rate, for example, at least one spray tube can be influenced accordingly. To change the speed of the paper machine, at least one drive of this paper machine can be influenced accordingly. To reduce the vacuum on the drainage element, at least one valve can be adjusted accordingly. In addition, it is possible, for example, to adjust at least one tensioning roller to reduce the fabric tension. If a corresponding limit value is exceeded, an alarm signal can also be generated, for example.
  • the above-mentioned actuators can therefore be, for example, spray pipes, drives of the paper machine, valves, tensioning rollers, signal transmitters and / or the like.
  • a warning signal is generated first generated and at least one if a further limit value is exceeded appropriate countermeasures initiated, with further warming of the monitored area counteracted or the monitored area cooled becomes.
  • the temperature is viewed transversely to the machine direction at several points at a distance from each other is measured.
  • the distance between the measuring points can be, for example, in each case be about 500 mm.
  • thermocouple is preferably used as the temperature sensor.
  • the monitoring system accordingly comprises at least a temperature sensor with a process control system assigned to the paper machine is connected to the temperature in the ceramic and / or the Temperature at a bond between the ceramic and an associated one To measure the base body and / or the temperature in the base body, the Temperature measurement value obtained in the process control system evaluated and preferably is compared with at least one predeterminable limit value and in Depends on the result of the evaluation or if the predeterminable value is exceeded Limit value via the process control system automatically at least one actuator is correspondingly activated or can be influenced in order to exceed the To signal limit value and / or at least a corresponding countermeasure initiate with further warming of the monitored area counteracted or the monitored area is cooled.
  • FIG. 1 shows a schematic plan view of a suction box 6 of a machine 1 for producing a fibrous web 2, in particular a paper, cardboard or tissue web, from a fibrous suspension 3, with a sheet formation area 4, the suction box 6 being shown only in a sectional top view ,
  • the fibrous web 2 that forms is guided by means of at least one porous covering 5, in particular a screen belt 5.1, over the at least one suction box 6, which consists of a basic box 7, which has at least one connection 8 together with line 8.1 for at least one vacuum source 9 and which is formed from at least one suction box cover 11, which consists of at least two transverse to the machine direction L (arrow), delimiting a suction slot 13 and each consisting of a base body 14 and each consisting of at least one ceramic 15 drainage elements 12, in particular drainage strips 12.1.
  • the at least one suction slit 13 is delimited by a format slider 16 consisting of a base body 17 and at least one ceramic 18.
  • a format slider 16 consisting of a base body 17 and at least one ceramic 18.
  • at least one drainage element 12 and / or a format slide 16 has at least one removable edge piece 12.2, 18.1, 18.2, in which at least one temperature sensor 19 is integrated in order to determine the temperature in the ceramic and / or the temperature at an adhesive point to measure between the ceramic and the associated base body and / or the temperature in the base body.
  • the edge piece 12.2, 18.1, 18.2 can be fastened to the base body 17 by means of gluing and / or clamping, which has already been disclosed in various ways.
  • thermocouple known per se is also provided as the temperature sensor 19.
  • FIGS. 2a and 3a show two schematic side views of a format slide the machine according to the invention, whereas FIGS. 2b and 3b show two perspective representations of the same.
  • the format slide 16 of FIG. 2a consists of a base body 17 and three removable edge pieces 18.1, 18.2, 18.3, a temperature sensor 19.1, 19.2 being integrated in each of the edge pieces 18.1, 18.2.
  • a plurality of temperature sensors 19.1, 19.2 arranged at a respective distance A from one another are provided, the distance A between the measuring points in each case being approximately 500 mm.
  • the at least one connecting line 19.3 for the temperature sensors 19.1, 19.2 is shown in dashed lines.
  • the base body 17 of the format slide 16 (and / or the drainage element, which of course can also be a drainage strip) consists of a GRP material.
  • the ceramics 18.1, 18.2, 18.3 of the format slide 16 are designed as ceramic plates 18.1 ', 18.2', 18.3 'and have a height H in the range from 1 mm to 10 mm, preferably from 2 mm to 6 mm , on.
  • the format slide 16 of FIG. 2a is made in one piece with a preferably constant height and it is provided with at least one height adjustment mechanism 20.
  • the height adjustment mechanism 20 consists of at least one adjusting screw 20.1 together with the associated fixing screw 20.2.
  • Figure 2b shows a perspective view of the format slide 16 of Figure 2a.
  • the format slide 16 of FIG. 3a also consists of a base body 17 and three removable edge pieces 18.1, 18.2, 18.3, a temperature sensor 19 being integrated in the edge piece 18.1.
  • the format slide 16 of FIG. 3a is made in several parts with a preferably constant height and it is provided with at least one height adjustment in the form of at least one intermediate plate 21.
  • FIG. 3b shows a perspective view of the format slide 16 of FIG. 3a.
  • FIG. 4 shows a second schematic plan view of a suction box 6 of the machine 1 according to the invention.
  • the suction box 6 With regard to the general description of the suction box 6, reference is made to the description of the suction box 6 of FIG. 1.
  • the preferably slidable format slide 16 has an extension 22 which extends in the direction of the machine center M (dashed line) and preferably touches the covering 5. Furthermore, it is permeable to a fluid, for example air or water.
  • the extension 22 is - seen from above - preferably wedge-shaped and / or perforated.
  • the format slide (16) also has an essentially the same surface profile as the drainage element (12) touched by the covering (5).
  • each a drainage element 12 assigned drainage strips 12.1 each include a base body 14 and one connected to it by an adhesive point 23 Ceramics 18.
  • the drainage strips 12.1 are each as a temperature sensor 19 a thermocouple assigned, in particular via a connecting line 19.3 be connected to a process control system 24 assigned to the machine can.
  • the temperature is measured at the glue point 23.
  • the temperature sensor 19 is in one In the base body 14 provided recess 25 adjacent to the glue point 23 arranged.
  • the temperature is measured at the so-called "hot” ceramic zone, here inside the ceramic 18 close to the ceramic surface 26 at which the maximum temperature occurs.
  • the temperature sensor 19 provided in the region of an edge 27.
  • the one provided in the ceramic 15 Recess 25 was preferably in the green state, that is, before sintering the ceramic 15 generated.
  • the temperature sensor 19 on one anywhere over the width of the drainage element acted upon by the covering be arranged.
  • the temperature measurement value obtained is in the process control system 24 assigned to the paper machine evaluated and preferably with at least one predefinable limit compared.
  • the process control system 24 is used to exceed the predefinable limit value then at least one actuator is automatically activated or influenced accordingly, to signal that the limit value has been exceeded and / or at least initiate a corresponding countermeasure with which another Counteracted heating of the monitored area of the drainage element or the monitored area is cooled.
  • the Temperature measurement in particular be part of a control system that is one signal conversion following the temperature measurement and a means of of the process control system 24 includes data processing to be performed.

Landscapes

  • Paper (AREA)
EP02010416A 2001-05-15 2002-05-08 Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, procédé pour la surveillance d'un élément de drainage d'une machine à papier, et machine à papier avec un système de surveillance d'un élément de drainage Expired - Lifetime EP1260633B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10123529 2001-05-15
DE2001123529 DE10123529A1 (de) 2001-05-15 2001-05-15 Verfahren und System zur Überwachung eines Entwässerungselements
DE10163575 2001-12-21
DE2001163575 DE10163575A1 (de) 2001-12-21 2001-12-21 Maschine zur Herstellung einer Faserstoffbahn aus einer Faserstoffsuspension

Publications (3)

Publication Number Publication Date
EP1260633A2 true EP1260633A2 (fr) 2002-11-27
EP1260633A3 EP1260633A3 (fr) 2005-09-07
EP1260633B1 EP1260633B1 (fr) 2007-02-21

Family

ID=26009290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010416A Expired - Lifetime EP1260633B1 (fr) 2001-05-15 2002-05-08 Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, procédé pour la surveillance d'un élément de drainage d'une machine à papier, et machine à papier avec un système de surveillance d'un élément de drainage

Country Status (4)

Country Link
US (2) US6752909B2 (fr)
EP (1) EP1260633B1 (fr)
AT (1) ATE354695T1 (fr)
DE (1) DE50209515D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1382741A3 (fr) * 2002-07-18 2004-08-18 Klaus Bartelmuss Appareil pour la fabrication d' une bande de papier comportant au moins une bande de tamisage sans fin guidée par des rouleaux de support et de guidage
DE10312836A1 (de) * 2003-03-21 2004-10-14 Voith Paper Patent Gmbh Vorrichtung zur Herstellung einer Faserstoffbahn
EP1845189A3 (fr) * 2006-04-13 2008-04-30 Heinz Bartelmuss Procédé destiné à la commande de la température des éléments céramiques d'une barre d'appui ou d'une racleuse dans une installation de production de papier tout comme dispositif et barre d'appui ou racleuse destinés à l'exécution de ce procédé

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260633B1 (fr) * 2001-05-15 2007-02-21 Voith Patent GmbH Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, procédé pour la surveillance d'un élément de drainage d'une machine à papier, et machine à papier avec un système de surveillance d'un élément de drainage
US7108434B2 (en) * 2004-01-21 2006-09-19 Silverbrook Research Pty Ltd Method for printing wallpaper
US7186042B2 (en) 2004-01-21 2007-03-06 Silverbrook Research Pty Ltd Wallpaper printer
CN102947630B (zh) * 2010-04-30 2015-01-21 阿斯顿约翰逊公司 用于真空排水系统的真空控制阀门
DE102018118884A1 (de) * 2018-08-03 2020-02-06 Voith Patent Gmbh Vorrichtung zur Entwässerung einer nassgelegten Vliesstoffbahn
DE102018123406B3 (de) 2018-09-24 2019-12-05 Voith Patent Gmbh Entwässerungsvorrichtung
FI130095B (en) * 2019-09-09 2023-01-31 Valmet Technologies Oy Fabric for paper or cellulose technology and method for producing a fabric for paper or cellulose technology

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE233618C (fr)
US4191612A (en) * 1978-07-05 1980-03-04 Ikuo Araoka Dewatering suction apparatus for paper making machine
US4306934A (en) * 1978-11-27 1981-12-22 Seppanen Erkki O Method and apparatus for forming paper
DE3305539C1 (de) * 1983-02-18 1984-08-23 O. Dörries GmbH, 5160 Düren Saugkasten
US4718983A (en) * 1986-07-09 1988-01-12 Papyrus Inc. Forming board structure having an adjustable leading forming board strip
DE3823882A1 (de) * 1988-07-14 1990-01-18 Feldmuehle Ag Schlitzsauger
US5089090A (en) * 1989-06-08 1992-02-18 Jwi Ltd. Continuous controlled drainage
US5538869A (en) * 1990-12-13 1996-07-23 Board Of Regents, The University Of Texas System In-situ hybridization probes for identification and banding of specific human chromosomes and regions
US5976790A (en) * 1992-03-04 1999-11-02 The Regents Of The University Of California Comparative Genomic Hybridization (CGH)
FI943777A7 (fi) * 1994-08-17 1996-02-18 Valmet Paper Machinery Inc Paperikoneen vedenpoistoelin ja menetelmä sen valmistamiseksi
DE29615823U1 (de) * 1996-09-13 1996-10-31 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Saugkasten
US6274002B1 (en) * 1998-06-23 2001-08-14 Wilbanks International, Inc. Papermaking machine with variable dewatering elements including variable pulse turbulation blades adjusted by computer control system in response to sensors of paper sheet characteristics
US6375799B1 (en) * 1999-01-28 2002-04-23 Voith Sulzer Papiertechnik Patent Gmbh Process and apparatus for producing a fibrous material web
MXPA03003453A (es) * 2000-10-16 2005-06-22 Essen Roy Van Caja de drenaje con actividad ajustable.
EP1260633B1 (fr) * 2001-05-15 2007-02-21 Voith Patent GmbH Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, procédé pour la surveillance d'un élément de drainage d'une machine à papier, et machine à papier avec un système de surveillance d'un élément de drainage
DE10163575A1 (de) * 2001-12-21 2003-07-03 Voith Paper Patent Gmbh Maschine zur Herstellung einer Faserstoffbahn aus einer Faserstoffsuspension
DE10123529A1 (de) * 2001-05-15 2002-11-21 Voith Paper Patent Gmbh Verfahren und System zur Überwachung eines Entwässerungselements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1382741A3 (fr) * 2002-07-18 2004-08-18 Klaus Bartelmuss Appareil pour la fabrication d' une bande de papier comportant au moins une bande de tamisage sans fin guidée par des rouleaux de support et de guidage
DE10312836A1 (de) * 2003-03-21 2004-10-14 Voith Paper Patent Gmbh Vorrichtung zur Herstellung einer Faserstoffbahn
EP1845189A3 (fr) * 2006-04-13 2008-04-30 Heinz Bartelmuss Procédé destiné à la commande de la température des éléments céramiques d'une barre d'appui ou d'une racleuse dans une installation de production de papier tout comme dispositif et barre d'appui ou racleuse destinés à l'exécution de ce procédé

Also Published As

Publication number Publication date
US20020170692A1 (en) 2002-11-21
US6821389B2 (en) 2004-11-23
EP1260633A3 (fr) 2005-09-07
ATE354695T1 (de) 2007-03-15
EP1260633B1 (fr) 2007-02-21
US6752909B2 (en) 2004-06-22
DE50209515D1 (de) 2007-04-05
US20040163786A1 (en) 2004-08-26

Similar Documents

Publication Publication Date Title
EP0571585B1 (fr) Machine a papier a deux toiles
EP1314817A1 (fr) Procédé et machine pour fabriquer une bande fibreuse
EP1260633B1 (fr) Machine pour la fabrication d'une bande fibreuse à partir d'une suspension fibreuse, procédé pour la surveillance d'un élément de drainage d'une machine à papier, et machine à papier avec un système de surveillance d'un élément de drainage
DE4002304A1 (de) Former in einer papiermaschine
DE60215694T2 (de) Verfahren und vorrichtung zur regelung der siebpartie
EP2313552B1 (fr) Procédé d'optimisation du bilan énergétique des unités de formage dans des machines de fabrication de bandes de matières fibreuses, ainsi qu'unité de formage
EP0779393B1 (fr) Calandre pour le traitement d'une bande de papier et application pour cette calandre
AT392989B (de) Stoffauflauf fuer papiermaschinen
DE10163575A1 (de) Maschine zur Herstellung einer Faserstoffbahn aus einer Faserstoffsuspension
EP0831173A2 (fr) Caisse aspirante à coulisseau de dimensionnement
DE60015132T2 (de) Verfahren zum messen und regeln von blattwellungen in einer papier- oder pappemaschine
DE69915130T2 (de) Verfahren und vorrichtung zur papierherstellung
DE69217073T2 (de) Entwasserungseinheit mit automatischer schlitzdüse
DE4321061B4 (de) Verfahren und Vorrichtung zur Beeinflussung von Dicke und Glanz und/oder Glätte bei der Behandlung von Faserstoffbahnen
WO1993012291A1 (fr) Machine a papier a deux toiles
AT411536B (de) Anlage zur erzeugung eines papierbandes mit mindestens einem über trag- bzw. führungswalzen bewegten, in sich geschlossenen siebband
AT409768B (de) Verfahren und vorrichtung zur regelung von qualitätsparametern bei papier-, tissue und zellstoffentwässerungsanlagen
EP1478806A1 (fr) Dispositif de lissage
EP1881106A1 (fr) Caisse de tête d'une machine destinée à la fabrication d'une bande de matière fibreuse
DE10123529A1 (de) Verfahren und System zur Überwachung eines Entwässerungselements
DE10051649A1 (de) Pressenanordnung
EP4711521A1 (fr) Lame d'égouttage d'une machine à papier
DE10257293A1 (de) Vorrichtung zur Herstellung einer Faserstoffbahn
EP1348804B1 (fr) Machine pour fabriquer du papier de soie comprenant une presse à patin
EP2072677B1 (fr) Partie humide à deux toiles pour une machine destinée à la fabrication d'une bande de matière fibreuse à partir d'au moins une suspension de matière fibreuse

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7D 21G 9/00 B

Ipc: 7D 21F 1/52 B

Ipc: 7D 21F 1/48 A

17P Request for examination filed

Effective date: 20060307

AKX Designation fees paid

Designated state(s): AT DE FI IT SE

RTI1 Title (correction)

Free format text: MACHINE FOR PRODUCING A FIBROUS WEB FROM A FIBRE SUSPENSION, PROCESS FOR MONITORING A DEWATERING MEMBER OF A PAPERMAKING MACHINE, AND PAPERMAKING MACHINE WITH A SYSTEM FOR MONITO

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOITH PATENT GMBH

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FI IT SE

REF Corresponds to:

Ref document number: 50209515

Country of ref document: DE

Date of ref document: 20070405

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20071122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20110513

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20110512

Year of fee payment: 10

Ref country code: FI

Payment date: 20110512

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110520

Year of fee payment: 10

Ref country code: IT

Payment date: 20110524

Year of fee payment: 10

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 354695

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120508

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120508

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120509

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50209515

Country of ref document: DE

Effective date: 20121201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121201