EP1069234B1 - Procédé et dispositif pour enlever des impuretés d'un hydrocyclone - Google Patents

Procédé et dispositif pour enlever des impuretés d'un hydrocyclone Download PDF

Info

Publication number
EP1069234B1
EP1069234B1 EP00112006A EP00112006A EP1069234B1 EP 1069234 B1 EP1069234 B1 EP 1069234B1 EP 00112006 A EP00112006 A EP 00112006A EP 00112006 A EP00112006 A EP 00112006A EP 1069234 B1 EP1069234 B1 EP 1069234B1
Authority
EP
European Patent Office
Prior art keywords
hydrocyclone
dilution liquid
added
suspension
addition point
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
EP00112006A
Other languages
German (de)
English (en)
Other versions
EP1069234A1 (fr
Inventor
Rolf Hartmann
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 DE20004255U external-priority patent/DE20004255U1/de
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1069234A1 publication Critical patent/EP1069234A1/fr
Application granted granted Critical
Publication of EP1069234B1 publication Critical patent/EP1069234B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
    • D21D5/24—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/18—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with auxiliary fluid assisting discharge

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • hydrocyclones are well suited to removing heavy parts by centrifugal forces or concentrate light parts in fiber suspensions and by using one to lead the intended discharge opening out of the hydrocyclone.
  • the operational safety especially the freedom from clogging of such hydrocyclones particularly important. Blockages can occur if the contaminants, e.g. in the area of the discharge opening provided for them, so collect and concentrate that there is a blockage. In many cases, a A compromise can be found between operational safety, i.e.
  • a known way to To reduce the risk of constipation on heavy-duty hydrocyclones is that a dilution liquid is supplied.
  • a water supply line opens into the Edge area of the hydrocyclone e.g. through slots in the circumferential direction in the Cyclone wall.
  • the dilution liquid then whirls up the outer layers and must penetrate the heavy dirt already concentrated in it, resulting in a Backwashing heavy parts in the accept stream can result.
  • the invention is based on the object of a method for applying To create contaminants from hydrocyclones, with which both a reliable Removal of the contaminants is possible, as well as a good separation effect.
  • the dilution liquid is therefore not introduced into the Edge of the hydrocyclone, where blockage is expected, but in the middle, with axial Direction, and thus mainly in the core flow.
  • the dilution liquid With a sufficiently large one Inflow velocity the dilution liquid reaches the conical area of the separating room and mixes through the effect of the ones prevailing there Gradually shear flow with the surrounding pulp suspension.
  • the kind of Dilution leads to a gentle backwashing of the fibers in the accepted fabric without that the same thing happens with already concentrated heavy parts, since these are on the wall and are not affected by the dilution water addition. Without the measures according to the invention, some of those that have already been concentrated would be concentrated Heavy parts whirled up and get into the middle of the hydrocyclone. From there then discharged with the accepted material.
  • FIG. 1 shows a hydrocyclone according to the invention, roughly schematically an inlet 2 for the paper fiber-containing suspension S and an accept material outlet 3 for the cleaned suspension, i.e. the accepted substance A.
  • the suspension S to be cleaned becomes set in rotation and enters the separating part 6 with a separating cone 1, in which usually increases the speed of rotation again. This will the contained heavy parts ST concentrated on the inner wall of the separating cone 1 and go down into the reject discharge device 17.
  • the addition point 5 intended for this has the narrowest Position 4 of the separating cone 1 is the distance a, which is preferably in axial Seen direction, is at most a few millimeters.
  • this can Distance a up to 30% of the length L of the hydrocyclone.
  • Another sensible one The requirement is that the axial distance to the inlet 2 be kept as large as possible e.g. at least 70% of the length L of the hydrocyclone.
  • the heavy parts ST fall, after they have passed the narrowest point 4 of the separating cone 1, into the Discharge chamber 8 from which it, e.g. via a discharge device 17, as reject R be removed.
  • This discharge can take place continuously or intermittently.
  • the dilution liquid W is replaced by a simple one vertical inlet pipe 9 is added, which is an axial and at the addition point 5 against the discharge direction of the contaminants ST has an opening.
  • Circumferential component Vu (see FIG. 5) is so low compared to the axial speed Vax to hold that the angle ⁇ between the resultant of the two vectors and the Axis does not exceed 30 °. Overall, with this type of Add dilution water to a much larger volume distributed and is therefore less harmful to the separation effect.
  • the liquid W is particularly advantageously at a certain axial position in the Hydrocyclone entered. Then there is only one opening at the addition point 5. It may be possible to adjust their position in the axial direction.
  • FIG. 2 shows a variant for carrying out the method Dilution liquid W via a curved inlet pipe 9 directly in the middle of the entered reject tube 11 below the separating cone 1. It is here the addition point 5 selected so that it is below the narrowest point 4, what but not necessarily so.
  • FIG. 3 shows a further possibility for carrying out the method.
  • the Dilution liquid W first placed in a flow insert 16 ', in the Inside there is a central displacement body 12, so that an annular Flow cross section arises.
  • the ring-shaped jet easily penetrates the one above part of the separating cone. It is also indicated here by arrows, like that Heavy parts ST slide down into the discharge chamber 8 near the wall. she can do this without going through the flow of the dilution liquid into the core flow of the Hydrocyclones to be flushed.
  • FIG. 4 shows an axial inflow of the Dilution liquid W through the central inlet pipe 9. It opens inside the Flow insert 16 "via an injector 13 into a central tube 14. This allows Parts of the suspension are sucked out of the hydrocyclone and in the middle again be added, which serves the stable operation and the fiber loss minimized.
  • FIG. 6darsch A hydrocyclone similar to that in FIG. 1 is shown in a perspective view in FIG. 6darsch. More constructive details are visible, but also these Drawing is still greatly simplified.
  • FIG. 7 essentially shows the lower part of FIG. 6 in an enlarged form. you thus recognizes more easily that the inlet pipe 9 is screwed in exactly in the middle and in one circular opening opens here above the narrowest point 4. It's easy too mount and can be adjusted axially. With the help of the axial adjustment is one better adjustment of the hydrocyclone to the existing conditions possible.
  • the discharge chamber 8 of FIG. 8 has a slightly eccentrically inserted one Inlet pipe 9, but this remains in the radially inner region of the hydrocyclone.
  • the outlet cross-section of the inlet pipe 9 keeps one from the wall of the hydrocyclone Distance b a, which is at least 10% of the inner diameter of the hydrocyclone on it Digit is. It must be guaranteed that the already concentrated Heavy parts can no longer be washed in by the dilution liquid.
  • the Eccentricity can bring advantages in special cases, e.g. if the hydrocyclone is operated horizontally. It can also be made adjustable.
  • the flow inserts shown should only show the principle. More usable Flow applications are conceivable. In particular, their dimensions can be determined by Invoice and simple tests tailored to the respective purpose become.

Claims (17)

  1. Procédé destiné à l'élimination d'impuretés d'une suspension (S) contenant des fibres de papier en utilisant un hydrocyclone comportant un cône de séparation (1), dans lequel du liquide de dilution (w) est ajouté à la suspension (S) dans la zone située radialement à l'intérieur de l'hydrocyclone, et ce à un écartement axial (a) de l'emplacement le plus étroit du cône de séparation (1), qui correspond à un maximum de 30 % de la longueur (L) de l'hydrocyclone,
       caractérise en ce que
       le liquide de dilution (W) est ajouté dans un sens d'écoulement qui est orienté à l'opposé du sens d'évacuation des impuretés de l'hydrocyclone, et ce sans rotation ou uniquement avec une rotation dont le vecteur de vitesse d'écoulement résultant de la vitesse périphérique (Vu) et de la vitesse axiale (Vax) au niveau du bord du jet présente un angle (α) de 30° au maximum par rapport à l'axe.
  2. Procédé selon la revendication 1,
       caractérisé en ce que
       le liquide de dilution (W) est ajouté avec un jet plat.
  3. Procédé selon la revendication 1 ou 2,
       caractérisé en ce que
       le liquide de dilution (W) est ajouté en un jet rond.
  4. Procédé selon la revendication 1 ou 2,
       caractérisé en ce que
       le liquide de dilution (W) est ajouté en un jet annulaire.
  5. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       le liquide de dilution (W) est ajouté au centre à l'aide d'un injecteur (13), et en ce que l'injecteur (13) aspire à partir de la zone annulaire située autour du point d'ajout (5).
  6. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       le liquide de dilution (W) est ajouté avec une vitesse axiale d'au moins 4 m/s.
  7. Procédé selon l'une quelconque des revendications précédentes,
       caractérisé en ce que
       une fraction légère est engendrée à partir d'une suspension (S) contenant des fibres de papier en tant que pâte à papier acceptée (A), et en ce que des particules lourdes (ST) sont éliminées en tant que fraction lourde.
  8. Hydrocyclone destiné à la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 5, avec une entrée (2) pour la suspension (S) à épurer, une sortie (3) de pâte à papier acceptée pour la suspension épurée, une partie de séparation (6) à laquelle est raccordé directement ou indirectement un dispositif d'évacuation 'de rejets (17) pour les particules lourdes, l'hydrocyclone comportant au moins un raccordement pour l'ajout de liquide de dilution (W), et le point d'ajout (5) étant situé dans la sone située radialement à l'intérieur de l'hydrocyclone,
       caractérise en ce que
       le point d'ajout (5) comporte au moins un orifice, dont le sens d'écoulement est orienté axialement et à l'opposé du sens d'évacuation des impuretés.
  9. Hydrocyclone selon la revendication 8,
       caractérisé en ce que
       le point d'ajout (5) est situé au niveau d'un emplacement qui, dans la direction axiale, est éloigné de l'entrée (2) de la suspension (S) dans l'hydrocyclone d'au moins 70 % de la longueur (L) de l'hydrocyclone.
  10. Hydrocyclone selon la revendication 9,
       caractérisé en ce que
       la partie de séparation (6) comprend un cône de séparation (1).
  11. Hydrocyclone selon la revendication 8, 9 ou 10
       caractérise en ce que
       le point d'ajout (5) fait partie d'un insert d'écoulement (16, 16', 16'') qui est inséré dans l'hydrocyclone.
  12. Hydrocyclone selon la revendication 11,
       caractérisé en ce que
       l'insert d'écoulement (16, 16', 16'') peut être échangé contre un autre insert d'écoulement, qui est agencé différemment en ce qui concerne son effet d'écoulement.
  13. Hydrocyclone selon la revendication 8, 9, 10, 11 ou 12,
       caractérisé en ce que
       la section transversale de l'orifice est réglable.
  14. Hydrocyclone selon l'une quelconque des revendications 8 à 13,
       caractérise en ce que
       la position de l'orifice est réglable.
  15. Hydrocyclone selon l'une quelconque des revendications 8 à 14,
       caractérisé en ce que
       le point d'ajout (5) est disposé de façon concentrique par rapport au centre de l'hydrocyclone.
  16. Hydrocyclone selon l'une quelconque des revendications 8 à 14,
       caractérise en ce que
       le point d'ajout (5) est disposé de façon excentrée par rapport au centre de l'hydrocyclone, et à un écartement (b) de la paroi intérieure de l'hydrocyclone, qui correspond à au moins 10 % du diamètre intérieur de l'hydrocyclone à cet emplacement.
  17. Hydrocyclone selon l'une quelconque des revendications 8 à 16,
       caractérisé en ce que
       le point d'ajout (5) est formé par l'orifice du débouché d'un tube d'amenée (9), qui pénètre dans l'hydrocyclone sous la section transversale la plus étroite de la partie de séparation (6).
EP00112006A 1999-07-06 2000-06-02 Procédé et dispositif pour enlever des impuretés d'un hydrocyclone Expired - Lifetime EP1069234B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19931166 1999-07-06
DE19931166 1999-07-06
DE20004255U 2000-03-07
DE20004255U DE20004255U1 (de) 1999-07-06 2000-03-07 Hydrozyklon

Publications (2)

Publication Number Publication Date
EP1069234A1 EP1069234A1 (fr) 2001-01-17
EP1069234B1 true EP1069234B1 (fr) 2004-05-26

Family

ID=26054071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112006A Expired - Lifetime EP1069234B1 (fr) 1999-07-06 2000-06-02 Procédé et dispositif pour enlever des impuretés d'un hydrocyclone

Country Status (4)

Country Link
US (1) US6284096B1 (fr)
EP (1) EP1069234B1 (fr)
AT (1) ATE267909T1 (fr)
ES (1) ES2220296T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013117342A1 (fr) 2012-02-10 2013-08-15 Andritz Energy & Environment Gmbh Hydrocyclone à appauvrissement en matières fines dans le tamisat inférieur du cyclone

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7736501B2 (en) 2002-09-19 2010-06-15 Suncor Energy Inc. System and process for concentrating hydrocarbons in a bitumen feed
CA2471048C (fr) 2002-09-19 2006-04-25 Suncor Energy Inc. Cyclone d'hydrocarbures de mousse bitumineuse
DE102004045823A1 (de) * 2004-09-22 2006-03-23 Voith Paper Patent Gmbh Verfahren zum Fraktionieren einer wässrigen Papierfasersuspension sowie Hydrozyklon zur Durchführung des Verfahrens
SE529771C2 (sv) * 2005-04-29 2007-11-20 Gl & V Man Hungary Kft Hermina Hydrocyklonenhet och metod för separering av en fibermassasuspension innehållande relativt tunga föroreningar
DE202008018358U1 (de) 2008-11-14 2013-04-10 Voith Patent Gmbh Hydrozyklon
DE102008057339A1 (de) 2008-11-14 2010-05-20 Voith Patent Gmbh Hydrozyklon
CA2689021C (fr) 2009-12-23 2015-03-03 Thomas Charles Hann Appareil et procede de regulation de debit par le truchement d'une caisse aspirante
JP2012056016A (ja) * 2010-09-09 2012-03-22 Matluster Technocracy Corp 湿式分離装置及びこれを用いた研磨材回収システム
FI123014B (fi) * 2010-11-11 2012-09-28 Metso Paper Inc Pyörrepuhdistimen pohjalaimenninrakenne ja menetelmä pyörrepuhdistimen pohjalaimenninrakenteessa
DE102010063196A1 (de) 2010-12-16 2012-06-21 Voith Patent Gmbh Hydrozyklon
AT512479B1 (de) 2012-02-10 2013-11-15 Andritz Energy & Environment Gmbh Verfahren zur feinstoffreduktion im rea-gips
RU2538733C2 (ru) * 2012-11-27 2015-01-10 Закрытое акционерное общество "СОМЭКС" Гидроциклонная установка с регулируемыми конструктивными параметрами
SE538725C2 (sv) 2014-06-26 2016-11-01 Valmet Oy Ångavskiljningsenhet och system för hydrolysförfarande innefattande en ångavskiljningsenhet
DE102015002683A1 (de) * 2014-08-14 2016-02-18 Repa Boltersdorf Gmbh Verfahren zum Behandeln eines Stoffgemenges aus unterschiedlichen Materialien, Vorrichtung zur Durchführung dieses Verfahrens und ein Zyklon
DE102016122225B4 (de) 2016-11-18 2018-11-08 Voith Patent Gmbh Hydrozyklonanordnung
DE102018122808A1 (de) 2018-09-18 2020-03-19 Voith Patent Gmbh Steuerverfahren einer Reinigungsvorrichtung mit Schwerteil-Abscheider
WO2020146581A1 (fr) * 2019-01-10 2020-07-16 Bengt Eriksson Chambre de rejet d'hydrocyclone
WO2020157383A1 (fr) * 2019-01-31 2020-08-06 Andritz Oy Chambre de rejet d'un épurateur centrifuge et épurateur centrifuge
DE102022110164A1 (de) 2021-08-26 2023-03-02 Voith Patent Gmbh Hydrozyklonanordnung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE346705B (fr) * 1970-04-01 1972-07-17 N Wikdahl
US3720315A (en) * 1971-01-18 1973-03-13 Clark & Vicario Corp Stabilizing papermaking system cleaner operation
US3785489A (en) * 1971-07-14 1974-01-15 Celleco Ab Cyclone separator with underflow diluter
US4151083A (en) * 1974-09-10 1979-04-24 Dove Norman F Apparatus and method for separating heavy impurities from feed stock
US4356084A (en) * 1979-04-06 1982-10-26 The Black Clawson Company Self-sealing valve assembly to facilitate unplugging of a centrifugal cleaner
CA1138378A (fr) * 1980-03-13 1982-12-28 Jacek J. Macierewicz Dispositif axial d'elutriation pour l'orifice de rejet d'un hydrocyclone
FR2478489B1 (fr) * 1980-03-21 1985-08-30 Centre Tech Ind Papier Procede et dispositif pour la separation de particules dans un fluide, notamment pour l'epuration de suspensions papetieres
US5069751A (en) * 1990-08-09 1991-12-03 Kamyr, Inc. Hydrocyclone deinking of paper during recycling
US6109451A (en) * 1998-11-13 2000-08-29 Grimes; David B. Through-flow hydrocyclone and three-way cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013117342A1 (fr) 2012-02-10 2013-08-15 Andritz Energy & Environment Gmbh Hydrocyclone à appauvrissement en matières fines dans le tamisat inférieur du cyclone

Also Published As

Publication number Publication date
EP1069234A1 (fr) 2001-01-17
ATE267909T1 (de) 2004-06-15
US6284096B1 (en) 2001-09-04
ES2220296T3 (es) 2004-12-16

Similar Documents

Publication Publication Date Title
EP1069234B1 (fr) Procédé et dispositif pour enlever des impuretés d'un hydrocyclone
EP0034780B1 (fr) Dispositif de triage rotatif
DE754339C (de) Verfahren und Vorrichtung zum Entfernen von schweren Teilchen unter Fliehkraftwirkung aus einer Aufschwemmung, insbesondere von Zellstoff, Papierstoff u. dgl.
DE2954409C2 (fr)
DE1761600C3 (de) Vorrichtung zum Sichten von Faserstoffaufschwemmungen
EP1799903B1 (fr) Procede pour fractionner une suspension aqueuse de fibres a papier et hydrocyclone pour la mise en oeuvre dudit procede
EP1215335B1 (fr) Tamis sous pression pour l'épuration de pâte à papier contenant des impuretés
WO2011076660A1 (fr) Procédé et dispositif de tamisage pour le tamisage d'une suspension de matière fibreuse
AT510253B1 (de) Zweistufige pulpensiebvorrichtung mit zwei stationären zylindrischen sieben
DE2818029A1 (de) Vorrichtung zum sortieren von faserstoffsuspensionen
EP1598477B1 (fr) Tamis sous pression pour tamiser une suspension de fibres
DE2753413C3 (de) Drucksortierer
DE102004051327B4 (de) Verfahren zur Entgasung und Zuführung einer Faserstoffsuspension zu einem Stoffauflauf sowie Entgasungsvorrichtung
DE102011088102A1 (de) Siebvorrichtung zum Sieben einer Faserstoffsuspension
DE2757175A1 (de) Vorrichtung und verfahren zum zermahlen und aufbereiten von abfallstoffen
DE602004011346T2 (de) Sortierer zur Reinigung von Fasersuspensionen
WO2010124911A2 (fr) Procédé de traitement d'une suspension de matière fibreuse et dispositif de tamisage permettant la mise en oeuvre dudit procédé
DE3001448C2 (de) Drucksortierer
DE102005016192A1 (de) Verfahren zum Auflösen und Reinigen von störstoffhaltigen Papierrohrstoffen
DE10115298A1 (de) Drucksortierer zum Entfernen von Störstoffen aus einer störstoffhaltigen Papierfasersuspension
AT413391B (de) Sortierer zur reinigung einer fasersuspension
DE4432842C2 (de) Verfahren zum Ausbringen unerwünschter Feststoffpartikel aus einer wässerigen Faserstoffsuspension sowie Vorrichtung zu seiner Ausführung
DE1442501A1 (de) Verfahren zum Ausscheiden von Fremdkoerpern aus einem fliessfaehigen Medium mittels eines Zyklons und Zyklon zur Ausuebung des Verfahrens
DE202005003105U1 (de) Vorrichtung zum Austragen von Schwerteilen aus einem Apparat zur Behandlung einer Faserstoffsuspension, insbesondere aus einem zum Reinigen einer Faserstoffsuspension betreibbaren Hydrozyklon
EP1462567B1 (fr) Classeur pour la purification d'une suspension 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: A1

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

AX Request for extension of the european patent

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

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

Owner name: VOITH PAPER PATENT GMBH

17P Request for examination filed

Effective date: 20010717

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20030522

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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 BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

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

Ref country code: LU

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

Effective date: 20040602

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040526

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

Ref country code: MC

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

Effective date: 20040630

Ref country code: CH

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

Effective date: 20040630

Ref country code: LI

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

Effective date: 20040630

Ref country code: BE

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

Effective date: 20040630

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50006562

Country of ref document: DE

Date of ref document: 20040701

Kind code of ref document: P

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2220296

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: VOITH PAPER PATENT G.M.B.H.

Effective date: 20040630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20050301

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

Ref country code: PT

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

Effective date: 20041026

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

Ref country code: ES

Payment date: 20120627

Year of fee payment: 13

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

Ref country code: AT

Payment date: 20120613

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20130619

Year of fee payment: 14

Ref country code: DE

Payment date: 20130620

Year of fee payment: 14

Ref country code: SE

Payment date: 20130619

Year of fee payment: 14

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

Ref country code: FI

Payment date: 20130613

Year of fee payment: 14

Ref country code: FR

Payment date: 20130703

Year of fee payment: 14

Ref country code: IT

Payment date: 20130625

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50006562

Country of ref document: DE

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

Ref country code: SE

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

Effective date: 20140603

Ref country code: FI

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

Effective date: 20140602

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: 267909

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140602

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140602

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50006562

Country of ref document: DE

Effective date: 20150101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150227

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: 20140602

Ref country code: DE

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

Effective date: 20150101

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

Ref country code: FR

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

Effective date: 20140630

Ref country code: AT

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

Effective date: 20140602

Ref country code: GB

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

Effective date: 20140602

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150727

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

Ref country code: ES

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

Effective date: 20140603