EP1769118B1 - Siebvorrichtung für zellstoffkocher - Google Patents

Siebvorrichtung für zellstoffkocher Download PDF

Info

Publication number
EP1769118B1
EP1769118B1 EP05744411A EP05744411A EP1769118B1 EP 1769118 B1 EP1769118 B1 EP 1769118B1 EP 05744411 A EP05744411 A EP 05744411A EP 05744411 A EP05744411 A EP 05744411A EP 1769118 B1 EP1769118 B1 EP 1769118B1
Authority
EP
European Patent Office
Prior art keywords
digester
screen
screen element
digestion
outlet
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.)
Not-in-force
Application number
EP05744411A
Other languages
English (en)
French (fr)
Other versions
EP1769118A1 (de
Inventor
Antti Isola
Matti Rosenqvist
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.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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
Application filed by Metso Paper Oy filed Critical Metso Paper Oy
Publication of EP1769118A1 publication Critical patent/EP1769118A1/de
Application granted granted Critical
Publication of EP1769118B1 publication Critical patent/EP1769118B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D21C7/14—Means for circulating the lye

Definitions

  • the present invention concerns a screen arrangement of a digester, and more precisely, a screen element being located substantially parallel with the vertical axis of the digester, in the middle of the digester, and process chemical being arranged to flow through said screen simultaneously either into the digester or out of the digester, depending on the determinations of the process and the stage of the process.
  • the field of use comprises especially feeding of process chemicals to the digester and removal of those from the digester when producing pulp or paper stock from wood chips in a batch or continuously operating digester.
  • process chemicals are moved with respect to the material to be processed, for example when digesting pulp from wood chips so, that mounted to the inner surface of the process vessel there is a screen with apertures of the kind that chemicals can flow through the screen surface, but the material to be processed is not able to pass through the screen surface.
  • the chemical flow can in the technique of prior art be directed either inwards to or outwards from the vessel, and the material to be processed, for example wood chip, can be either stable or movable to some direction, depending on the need.
  • the pulp produced chemically must as well have a good strength as a low kappa number, in other words, have a low lignin content after the digestion.
  • the digestion conditions must be carefully optimized. Among these digestion conditions are the correct alkali distribution, suitable temperature profile, adequate amount of liquid, and the amount of unwanted gradients being as small as possible, especially f.ex. in the radial direction of a continuous digester. This requires big circulation and expansion flows.
  • the screens can also be broken, when the support constructions fail. On average, this causes need for renovation of screens.
  • Screens nowadays available on the market for the continuous digestion usually comprise a plurality of vertical bar screens in an arrangement resembling for example a chessboard and attached to the inner surface of the digester in places determined by the process specification.
  • the screen bars of the bar screens have an angular form, for example as a metal bar worked in the form of T, or having a circular form.
  • one problem of the screens used for the digestion in prior art is the fact that they clog easily, when the chip particles cling to the slots.
  • this and the radial component of the pressure resulted from the chip column cause a resultant force pushing the particles to the slots of the screens said particles clogging superpositioned from bottom upwards causing blocking, which in turn disturbs the plug flow and causes channelling of the flow.
  • the packing degree of the digester is normal, the wood chips cling to each other inside the plug flow and also on the edges of the plug flow. Small sticks and chip particles follow the quicker radial liquid flow and cling to the sharp edges of the screen bars.
  • New sticks and chip particles cling more easily to these clung particles resulting in clogging of a wider screen area The clogging increases continuously as the screen area decreases.
  • the flows slow down also on the backside of the screen (between the screen and the digester jacket), resulting in that heavier and heavier particles are carried along to the backside of the screen and block the flow area between the screen and the jacket. Due to the location of the screens and the way of blocking, they are difficult to clean, and it is tried to be avoided as far a possible, for example by changing the construction types of the screens to the same place on the inner surface of the digester, on the casing of the pressure vessel.
  • Patents FI 54509 and FI 105 931 disclose methods for cleaning the screens.
  • One of the biggest problems is to provide an even distribution of the process chemical to the whole chip column without disturbing the flows.
  • wood chips are fed from the upper part of the digester and the processed pulp is removed from the lower part of the digester.
  • Cooking chemicals are fed via a longitudinal centre pipe mounted in the middle of the digester to different areas of the digester, determined according to the process technique.
  • the direction of flow is traditionally from the centre of the digester towards the jacket of the digester, where the screens are located.
  • the additional screen capacity is mounted to the jacket of the digester.
  • Patent US 3,475,271 discloses a digester especially meant for cuttings.
  • a rotating centre screen in the middle of the digester, near the bottom thereof.
  • the screen can have a cylindrical or conical form so that the diameter of the cone grows in the plug flow direction of the chip column.
  • the washing liquor is fed to the digester via screens on the walls of the pressure vessel and it flows towards said central screen, through which it is removed to recycling.
  • This solution aims at providing horizontal displacement wash on the bottom of the digester. Problems are caused, however, by the location of the central screen with respect to the feeding point of the washing liquor. The speed of the flow directed away from the wall of the digester towards the central screen is increased due to the reduced flowing area.
  • the digester is filled with chips and digestion chemical. After that, the content of the digester is heated by circulating the chemical with a pump and by heating it in the circulation pipe with a heat exchanger.
  • the digester is equipped with only one screen (circulation screen) mounted in the lower part of the digester, to the inner surface of the jacket. The location of the screen is unprofitable, as for having quickly homogenous digestion. Thus, among others, digestion time is wasted.
  • the object of the present invention is to eliminate disadvantages stated in connection with the both digestion methods by using a central screen element, wherein the flow of the process chemical can be directed to a predetermined point either inwards and/or outwards, and which can be installed into a process vessel easily also afterwards.
  • a tubular screen element having one or a plurality of zones in the longitudinal direction.
  • Each zone comprises a screen segment, through which process chemical can be sucked away from the digester, and at least one outlet, through which chemical is supplied to digester.
  • the zone can be also referred to as screen zone.
  • the central screen element In the transversal direction per each zone, the central screen element must have at least two channels in order to allow the flow of the process chemical in different directions also simultaneously.
  • the screen element is installed inside the process vessel, substantially parallel with the vertical axis, in the middle.
  • This kind of a screen element installed in the middle of the digester increases the screen area of the digester, thus improving the screen capacity.
  • the feed and removal of process chemicals can be optimized so, that the digestion is generally better.
  • the optimizing of the feed and removal means firstly, that the chemical can be fed to the right points in the longitudinal direction of the digester, and also to the middle of the cooking chip column. This is to ensure that there is enough of the process chemical and that it is evenly distributed throughout the whole chip column.
  • the feed and removal flows have influence on the movements of the chip column and on the flows of the whole digester, and in the changing digestion conditions the best possible flowing conditions for each digestion stage are provided by adjusting the places of the feeds and removals. This, for its part, improves the quality and homogeneity of the pulp.
  • the process chemical can be fed to the digester and removed from the digester at optimal points and thus it is possible to support the operation of the existing screens located on the jacket of the digester.
  • the central screen element provides more screen area for the digester, thus increasing the screen capacity of the digester and, additionally, it can be used for controlling the flows inside the digester and thus for improving the quality of the produced pulp.
  • the central screen element is divided into two or more channels.
  • the meaning of the channels is to provide for the flowing of the liquor containing process chemical in and out to/from the central screen element simultaneously without causing disturbances in the operation.
  • the flows in different directions must have their own channels.
  • the pulp to be processed is thickening towards the lower part of the digester, when the wood chips are digested.
  • the central screen element is installed inside the digester arranging the supporting so that the support disturbs the digestion process as less as possible.
  • the supporting can be implemented at any point of the digester, and if necessary, the supporting can also be made to several different points.
  • the central screen element is attached to the digester at the upper part of the digester and if necessary, the lateral supporting is made also to the lower part of the digester. It is especially important to take care of the supporting of the central screen element in a batch digestion vessel, where in connection with the filling of the chips and filling of the impregnation liquor, the chip column can heavily move upwards and break the constructions.
  • the connection of the central screen element to the liquid flows is preferably made at the upper part of the screen element. For this reason, when installing the screen element into an existing digester, the existing pipe connections must be taken into consideration when designing and sizing the apparatus.
  • the central screen element can be made of any material suitable for that purpose, like austenitic and fernte-austenitic steels.
  • the construction of the screen segment of the screen zone can be a round bar screen (as described in Patent WO01/31117 ), which is flow-technically efficient and would significantly increase the hydraulic capacity of the screen.
  • any other possible constructions implementing the characteristic features in accordance with the invention are covered by the scope of the invention.
  • the screen element can be implemented for example with a perforated plate or a slotted plate. The choice is often based on a plurality of criteria, among others on the price.
  • the transversal cross section X-X of figure 1 illustrates one embodiment in accordance with the invention, showing the channel construction of the central screen element.
  • other channel constructions for example pipe constructions for conducting the flows to different zones of the central screen element and away from those are possible and are covered by the scope of the invention.
  • the word channel in this connection refers to a construction providing for the flow of the process chemical inside the tubular central screen element.
  • Multiple channels refer to a channel construction providing for flows of the process chemical in different directions also simultaneously.
  • Figure 2 illustrates one embodiment in accordance with the invention of the central screen element in a continuously operating digester.
  • the central screen element of figure 2 comprises four screen zones, the zones A, B, C and D.
  • the screen zones are located as well sequentially close to each other (A and B) as at a distance from each other (C and D).
  • Figure 3 illustrate the operation of a central screen element in accordance with the invention in a campaign operation of a continuously operating digester, where for example softwood chips and hardwood chips are processed in turn.
  • the washing liquor displaces the contaminated cooking liquor away from the plug flow.
  • a retrofitted central screen and its lower screen zone (A) can be taken into use for increasing the screen capacity.
  • a pressure difference over the screen of the screen zone suitably adjusted, causes that a part of the flow (6) can be sucked away from the plug flow as a flow (5) through the screen segment (5.1).
  • the dilute connections (8) and (9) of the bottom act in a traditional way for controlling consistency of the blow.
  • the washing liquor displaces the contaminated cooking liquor away from the plug flow.
  • the traditional radial flow (6) from the outlet (6.1) is supported for example with two radial flows (2) from the outlet (2.1), and (3) from the outlet (3.1), and the upper screen zone (B) as well as the lower zone (A) of the central screen element will be taken into use for increasing the screen capacity simultaneously.
  • a maximized screen capacity allows the use of a smaller pressure difference for displacing the same amounts of liquid away from the plug flow.
  • the strongest of the radial flows is the traditional flow (6) from the outlet (6.1), and supporting that are the smaller radial flows (3) from the outlet (3.1) and flow (2) from the outlet (2.1).
  • Mutual differences between the flows and the mutual pressure differences over the screen surface of different screens like the screen of the jacket (7) and the screen segments (4.1) and (5.1) are adjusted so that the plug flow is purified as efficiently as possible.
  • the radial flow (1) from the outlet (1.1) is suitable for adjusting the consistency of the bottom of the digester in addition to the traditional dilute connections (8) and (9).
  • the radial flow (1) from the outlet (1.1) can be utilized also in that, without disturbing the other operations. Only the mutual pressure differences of the screens (7) and the screen segments (4.1) and (5.1) over the screen shall be adjusted according to the conditions. The radial flow (1) from the outlet (1.1) must be forced to flow upwards towards the lowering plug flow and towards the screen (7).
  • FIG 4 illustrates one embodiment of the invention, wherein the central screen element is used in batch digestion.
  • Wood chips are fed to the digester from the upper part of the digester.
  • the process chemical is fed to the digester through the lower part (16) of the digester.
  • the air brought along with the wood chips is removed from the digester as a result of the process chemical fill through the pipe connections (17) located in the upper part of the digester and/or the screen segments (4.1) and (5.1) of the central screen element (11).
  • a part of the liquor is discharged from the digester and new chemical is supplied instead.
  • liquor can be removed just at the wanted point of the digester through the screen segments (4.1) and/or (5.1).
  • the process chemical is circulated so that a part of it is removed from the digester either through the screens (10) attached to the jacket of the digester or through the screen segments (4.1) and (5.1) of the central screen element (11) as flows (4) and (5) and the liquor is returned to the digester either to the lower part (12) of the digester or to the upper part (13) of the digester, and/or through the central screen element (11) to a wanted point of the digester through the outlets (1.1), (2.1) and/or (3.1), as flows (1), (2) and/or (3).
  • the displaced liquor is removed through the displacement screens (14) installed to the upper part of the digester, and/or through the screen segments (4.1) and/or (5.1) as flows (4) and/or (5) of the central screen element.
  • the pulp column For discharging the digested pulp settled on the bottom from the digester, the pulp column must be supplied with dilution liquor.
  • liquor can be fed either through the nozzles (15) located in the lower part of the digester or from the outlet (1.1) of the central screen element, as flow (1), or through both of them.
  • the upper outlet (3.1) and the upper screen segment (4.1) of the central screen element (11) in accordance with the invention can be disengaged, because they would operate in a gas space.
  • One embodiment in accordance with the invention is to change a traditional batch digester to a displacement batch digester by installing a central screen element into the digester. In that case, during the change of liquids, air or liquor is discharged through the screen and during the digestion cycle the liquor of the upper cycle returns to the digester through the same, as described above.

Landscapes

  • Paper (AREA)
  • Centrifugal Separators (AREA)

Claims (14)

  1. Siebelement, welches parallel zur vertikalen Achse auf der zentralen Achse eines Kochers zum Erzeugen von Zellstoff angeordnet ist, dadurch gekennzeichnet, dass das Siebelement in vertikaler Richtung zumindest eine Zone mit einem Siebsegment zum Leiten eines Flüssigkeitsstroms von dem Kocher weg und zumindest einen Auslass zum Leiten eines Flüssigkeitsstroms zu dem Kocher aufweist.
  2. Siebelement nach Anspruch 1, dadurch gekennzeichnet, dass es in vertikaler Richtung in zwei oder eine Vielzahl von Zonen aufgeteilt ist.
  3. Siebelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass es zwei oder eine Vielzahl von Kanälen zum Liefern von Flüssigkeitsströmen zu verschiedenen Zonen oder von diesen weg aufweist.
  4. Siebelement nach einem der vorangehenden Ansprüchen, dadurch gekennzeichnet, dass es eine rohrförmige Gestalt hat und mehrfache Kanäle aufweist.
  5. Siebelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Siebzonen in Längsrichtung des Elements nebeneinander angeordnet sind.
  6. Siebelement nach Anspruch 1 oder 2" dadurch gekennzeichnet, dass die Siebzonen in Längsrichtung des Elements in einem Abstand zueinander angeordnet sind.
  7. Siebelement nach Anspruch 1 oder 2" dadurch gekennzeichnet, dass das Siebsegment und zumindest ein Auslass in der Siebzone nebeneinander angeordnet sind.
  8. Siebelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Siebsegment und zumindest ein Auslass in der Siebzone in einem Abstand zueinander angeordnet sind.
  9. Siebelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest ein Auslass in dem Bereich des Siebsegments in der Siebzone angeordnet ist.
  10. Siebelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Halterung des Siebelements an dem Kocher in dem oberen und/oder unteren Teil erfolgt.
  11. Verwendung eines Siebelements nach Anspruch 1 in einem kontinuierlich arbeitenden Kocher.
  12. Verwendung eines Siebelements nach Anspruch 1 in einem diskontinuierlichen Kocher.
  13. Verwendung nach Anspruch 11 oder 12, bei welcher das Ableiten von Flüssigkeit aus dem Kocher und die Zulieferung von Flüssigkeit zum Kocher gleichzeitig stattfinden.
  14. Verwendung nach Anspruch 11 oder 12, bei welcher das Ableiten von Flüssigkeit aus dem Kocher und die Zulieferung von Flüssigkeit zum Kocher nicht-gleichzeitig stattfinden.
EP05744411A 2004-05-28 2005-05-25 Siebvorrichtung für zellstoffkocher Not-in-force EP1769118B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040730A FI117477B (fi) 2004-05-28 2004-05-28 Sihtielin
PCT/FI2005/050174 WO2005116328A1 (en) 2004-05-28 2005-05-25 Screen device for a digester for producing pulp

Publications (2)

Publication Number Publication Date
EP1769118A1 EP1769118A1 (de) 2007-04-04
EP1769118B1 true EP1769118B1 (de) 2012-04-11

Family

ID=32338431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05744411A Not-in-force EP1769118B1 (de) 2004-05-28 2005-05-25 Siebvorrichtung für zellstoffkocher

Country Status (6)

Country Link
US (1) US20080169071A1 (de)
EP (1) EP1769118B1 (de)
AT (1) ATE553247T1 (de)
CA (1) CA2537087C (de)
FI (1) FI117477B (de)
WO (1) WO2005116328A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2638196C (en) * 2007-08-07 2015-12-15 Andritz Inc. Method and system for semi-chemical pulping
US8647473B2 (en) 2011-01-25 2014-02-11 Metso Paper Sweden Ab Continuous digester with a bottom scraper equipped with draining apertures
SE539706C2 (en) * 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolyzate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1231247A (en) * 1913-08-14 1917-06-26 Walter K Freeman Apparatus for harvesting the constituents of wood and vegetable substances, distilling and purifying them.
DE517951C (de) * 1929-05-14 1931-07-30 Einar Morterud Einrichtung zur zwanglaeufigen Fuehrung der Lauge im Kreislauf durch Zellstoffkocher
US3215591A (en) * 1963-04-22 1965-11-02 Lummus Co Pressure impregnation apparatus for impregnating wood chips and the like
SE225814C1 (de) * 1965-03-25 1969-03-25
US3475271A (en) * 1966-02-07 1969-10-28 Kamyr Ab Cellulose digester with washing apparatus
SE500455C2 (sv) * 1992-11-18 1994-06-27 Kamyr Ab Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare
US6123808A (en) * 1997-12-09 2000-09-26 Ahlstrom Machinery Inc. Distribution of dilution liquor to the discharge of a cellulose pulp digester
US6120647A (en) * 1998-01-26 2000-09-19 Ahlstrom Machinery Inc. Simplified liquid removal system for a cellulose pulp digester

Also Published As

Publication number Publication date
FI117477B (fi) 2006-10-31
WO2005116328A1 (en) 2005-12-08
FI20040730A (fi) 2005-11-29
FI20040730A0 (fi) 2004-05-28
CA2537087C (en) 2013-01-08
EP1769118A1 (de) 2007-04-04
CA2537087A1 (en) 2005-12-08
US20080169071A1 (en) 2008-07-17
ATE553247T1 (de) 2012-04-15

Similar Documents

Publication Publication Date Title
US6039841A (en) Screen having inclined slots for use in a continuous digester
US4028171A (en) Method for continuous treatment of fiber material in a vertical array
EP1769118B1 (de) Siebvorrichtung für zellstoffkocher
US6277240B1 (en) Method for continuously pulping cellulosic fibrous material
US5236554A (en) Digester having plural screens with means for controlling liquid injection and withdrawal
US6123807A (en) Method for the continuous cooking of pulp
JP4017761B2 (ja) 実質的に一定の直径の蒸解缶を用いるセルロースパルプ製造方法および装置
JP4922706B2 (ja) 流体循環連続蒸解釜
JPH10504614A (ja) 溶解固形分制御によるパルプ化改良、向上法
US6214171B1 (en) Top separator in a continuous digester system
EP1778912B1 (de) Mittelsieb
US6203662B1 (en) Method for the continuous cooking of pulp in a digester system having a top separator
US6123808A (en) Distribution of dilution liquor to the discharge of a cellulose pulp digester
CA2246024C (en) Tapered screen assembly for a cellulose pulp digester
US7452444B2 (en) Digester wash extraction by individual screen flow control
CN101421457B (zh) 用于从脱水单元馈送纸浆的方法和装置
US4193839A (en) Flow control method and apparatus for continuous wood chip digester screenless liquor extractor
US6120647A (en) Simplified liquid removal system for a cellulose pulp digester
US6241102B1 (en) Screening device
USH1681H (en) Discharge from pulping vessels without the aid of mechanical agitation
EP1592838B1 (de) Anordnung und verfahren zur zellstoffbehandlung sowie verfahren zur modernisierung eines zellstoffturms
EP0963480B1 (de) Verfahren und vorrichtung zur kontinuierlichen kochung von zellstoff
US4213822A (en) Apparatus for displacement washing of fibrous material suspended in a liquid
CN1222208A (zh) 纸浆塔的装料方法和装置
US8366876B2 (en) Method and arrangement for improving a washing step after completed cooking in a continuous digester

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

17P Request for examination filed

Effective date: 20060214

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20110427

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

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 BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 553247

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602005033620

Country of ref document: DE

Effective date: 20120606

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120411

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20120411

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120411

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: 20120411

Ref country code: SE

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: 20120411

Ref country code: PL

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: 20120411

Ref country code: LT

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: 20120411

Ref country code: IS

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: 20120811

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120813

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: 20120712

Ref country code: SI

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: 20120411

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: 20120531

Ref country code: BE

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: 20120411

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

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: 20120411

Ref country code: SK

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: 20120411

Ref country code: LI

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

Effective date: 20120531

Ref country code: CH

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

Effective date: 20120531

Ref country code: CZ

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: 20120411

Ref country code: RO

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: 20120411

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: 20120411

Ref country code: EE

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: 20120411

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

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120411

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005033620

Country of ref document: DE

Effective date: 20121201

26N No opposition filed

Effective date: 20130114

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

Effective date: 20120711

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

Ref country code: IE

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

Effective date: 20120525

Ref country code: ES

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: 20120722

Ref country code: FR

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

Effective date: 20120611

Ref country code: GB

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

Effective date: 20120711

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

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

Ref country code: BG

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: 20120711

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

Ref country code: TR

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: 20120411

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: 20120525

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

Ref country code: HU

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: 20050525

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

Ref country code: AT

Payment date: 20140513

Year of fee payment: 10

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 553247

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150525

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

Ref country code: AT

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

Effective date: 20150525