[go: up one dir, main page]

EP1087055B1 - Installation à hydrocyclones - Google Patents

Installation à hydrocyclones Download PDF

Info

Publication number
EP1087055B1
EP1087055B1 EP00116473A EP00116473A EP1087055B1 EP 1087055 B1 EP1087055 B1 EP 1087055B1 EP 00116473 A EP00116473 A EP 00116473A EP 00116473 A EP00116473 A EP 00116473A EP 1087055 B1 EP1087055 B1 EP 1087055B1
Authority
EP
European Patent Office
Prior art keywords
connections
plant according
distributing
collecting device
hydrocyclone plant
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
EP00116473A
Other languages
German (de)
English (en)
Other versions
EP1087055A1 (fr
Inventor
Wolfgang Mannes
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
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1087055A1 publication Critical patent/EP1087055A1/fr
Application granted granted Critical
Publication of EP1087055B1 publication Critical patent/EP1087055B1/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
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/24—Multiple arrangement thereof
    • B04C5/28—Multiple arrangement thereof for parallel flow

Definitions

  • the invention relates to a hydrocyclone system with several hydrocyclones according to the Preamble of claim 1.
  • hydrocyclones are used to move liquids containing substances from different sinking behavior due to strong centrifugal forces fractionate. So it is e.g. possible in a pulp suspension, as used for Production of paper is used to concentrate and contain contaminants derived from the hydrocyclone by a reject connection. That of contaminants The exempt fraction, namely the accept, is led through the accept connection and further used.
  • These processes are known per se, as is the fact that a good effect is only guaranteed if the hydrocyclones are not of a certain size exceed. In the case of a hydrocyclone system designed for larger throughputs is designed, therefore, a plurality - often even a large number - of hydrocyclones needed.
  • the liquid to be cleaned then flows through them in parallel, which means that the liquid flow into a variety of smaller sub-flows must be divided. For this, e.g. Distribution devices, as follows still to be used.
  • a hydrocyclone system is known from EP-A2-0 563 523.
  • the one in it The hydrocyclones used are on a horizontal flow section connected by a partition extending in the direction of flow is divided. An inlet chamber and an accept material chamber are thus formed.
  • a suitable distribution device is usually to be created so that the Distribution of liquid flows is even.
  • hydraulic Disruptions, eddies or the like can be avoided.
  • Hydrocyclone plants of this type is their simplicity to manufacture them at low cost can.
  • the hydrocyclones should also be easily accessible and easy to maintain for maintenance purposes to be swapped. The fulfillment of all these requirements is with the existing ones Systems not solved satisfactorily.
  • EP 0 658 648 A A system is known from EP 0 658 648 A in which a number of hydrocyclones is arranged approximately in a star shape around a hydraulic vibration damper.
  • the Vibration dampers are known to be complex to build and operate. Also one other equipment shown in US 4,267,048 is complicated and requires a high one Manufacturing and assembly costs.
  • the invention is therefore based on the object of creating a hydrocyclone system, with the simple distribution of an even distribution of those to be treated Liquid can be applied to the hydrocyclones.
  • the distribution device designed according to the invention contains e.g. a relatively large one cylindrical tube or an oval flow part. This is described by the Partition into an inlet and an accept material room or in other cases in one Inlet and divided into a reject space.
  • the flow part with the partition can easily created as a fully assembled unit and then with the openings for the Hydrocyclone connections are provided. In practice this is of great advantage because the introduction of two openings for a hydrocyclone in one Operation can take place, i.e. without moving the tool (e.g. the Laser cutter). Dimensional deviations are then much smaller than with tailors on separate pipes.
  • the inflowing liquid e.g. a fiber suspension
  • the inflowing liquid evenly distributed over the connected hydrocyclones.
  • the backflow into the downstream of the partition The space of the distribution device is advantageously provided by the light material connection of the Hydrocyclone. In most cases this is close to the inlet connection.
  • connections between the Flow part and the hydrocyclones executed as sealed plug connections his. This allows easy assembly or replacement of hydrocyclones.
  • This type of connection is also inexpensive.
  • the structure of the system is simple and clear. It is also easily possible to keep the main stream of liquids in maintain its direction; i.e. that the inflow and the accept or reject flow have the same direction.
  • the hydrocyclone system shown in FIG. 1 receives the suspension to be cleaned a large feed line, which in the distribution and collection device 5 from below opens.
  • This consists essentially of a cylindrical side wall 7 and is divided by a partition 9 across the flow direction. Upstream to this Partition 9, i.e. So on the inlet side, there are a number of openings 11 for Admission of the inlet connections 2 to the side of the distribution and collecting device 5 arranged hydrocyclones 1.
  • the hydrocyclone 1 contains a central axis 10 which arranged parallel to the cylindrical side wall 7 and thus to the flow direction 6 is.
  • the hydrocyclone 1 is constructed in such a way that the light part fraction is accepted as a good substance the accept connection 3 is discharged.
  • the openings 12 in the cylindrical side wall 7 are located downstream of the partition 9. On this The side wall 7 is shown cut.
  • the center lines 18 of the Inlet connection 2 and the center line 19 of the accept material connection 3 are in here mutually parallel planes, which in turn are perpendicular to the flow direction 6 in the Distribution and collection device 5 are. This leads to a particularly simple one Structure of the distribution and collection device 5, and the openings 11 and 12 can can be easily attached.
  • the planes have a relatively small distance 20, preferably not more than 1.5 m. It can also be seen that the openings 11 and 12 are arranged on the same circumference 13 and 14, respectively.
  • the construction of the hydrocyclone system shown in FIG. 1 is particularly simple. But there are deviations from this arrangement are easily conceivable.
  • the Distribution device can also be oval or have a polygonal plan.
  • the partition 9 obliquely, so that it has an angle ⁇ to Forms flow direction 6, which deviates from 90 °.
  • the openings are located 11 or 12 with advantage on imaginary levels that are parallel to the partition 9.
  • FIG. 2 schematically shows a hydrocyclone system according to the invention in a view from above.
  • the principle of the presented invention enables a very simple even Distribution of the liquids in that the hydrocyclones 1 radiate with equal distance around the cylindrical side wall of the distribution device here are arranged.
  • the partition not visible here lies horizontally between the Inlet connections 2 and the accept connections 3.
  • Hydrocyclones can also be used so that the heavy fraction as a good substance and the light fraction is used as a reject. With such an application e.g. Specifically light contaminants separated from a paper fiber suspension.
  • a system according to the invention can be used in that the accept material connection (3) 1 or 2 serves as reject connection. The accepted material then falls at the outlet for the Heavy fraction.
  • Such circuits are known per se and therefore not here specially illustrated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cyclones (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Extraction Or Liquid Replacement (AREA)

Claims (18)

  1. Installation d'hydrocyclones avec plusieurs hydrocyclones (1), comportant chacun un raccordement d'entrée (2), un raccordement (3) de pâte à papier acceptée et un raccordement de rejet (4), ainsi qu'au moins un dispositif de répartition et de collecte (5) pour l'amenée de liquides dans les hydrocyclones (1) et leur évacuation des hydrocyclones,
       étant précisé que
    le dispositif de répartition et de collecte (5) contient un élément d'écoulement avec des orifices (11) pour les raccordements d'entrée (2), et des orifices (12) pour les raccordements (3) de pâte à papier acceptée ou pour les raccordements de rejet (4) des hydrocyclones (1), et comporte une cloison de séparation,
       caractérisée en ce que
    l'élément d'écoulement comporte une paroi latérale en soi fermée, de préférence cylindrique,
    la cloison de séparation (9) obture la section transversale d'écoulement du dispositif de répartition et de collecte (5), et
    les raccordements d'entrée (2) des hydrocyclones (1) débouchent dans le dispositif de répartition et de collecte (5) en amont de la cloison de séparation (9), et les raccordements (3) de pâte à papier acceptée ou les raccordements de rejet (4) en aval de celle-ci.
  2. Installation d'hydrocylones selon la revendication 1,
       caractérisée en ce que,
       dans l'élément d'écoulement du dispositif de répartition et de collecte (5), les axes médians (10) des hydrocyclones (1) sont situés parallèlement au sens de l'écoulement (6).
  3. Installation d'hydrocylones selon la revendication 1 ou 2,
       caractérisée en ce que
       le sens de l'écoulement (6) est vertical.
  4. Installation d'hydrocylones selon la revendication 1, 2 ou 3,
       caractérisée en ce que
       les orifices (11) pour les raccordements d'entrée (2) sont situés sur la même périphérie (13) du dispositif de répartition et de collecte (5).
  5. Installation d'hydrocylones selon la revendication 1, 2, 3 ou 4,
       caractérisée en ce que
       les orifices (12) pour les raccordements (3) de pâte à papier acceptée ou les raccordements de rejet (4) sont situés sur la même périphérie (14) du dispositif de répartition et de collecte (5).
  6. Installation d'hydrocylones selon la revendication 1, 2, 3, 4 ou 5,
       caractérisée en ce que
       les orifices (11) pour les raccordements d'entrée (2) sont répartis de façon homogène sur la périphérie du dispositif de répartition et de collecte (5).
  7. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       les orifices (12) pour les raccordements (3) de pâte à papier acceptée ou pour les raccordements de rejet (4) sont répartis de façon homogène sur la périphérie du dispositif de répartition et de collecte (5).
  8. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       la ligne médiane (18) du raccordement d'entrée (2) du dispositif de répartition et de collecte (5), et la ligne médiane (19) du raccordement (3) de pâte à papier acceptée d'un hydrocyclone, sont respectivement situées dans des plans qui forment entre eux un angle de 45° maximum.
  9. Installation d'hydrocylones selon la revendication 8,
       caractérisée en ce que
       les plans sont parallèles entre eux.
  10. Installation d'hydrocylones selon la revendication 8 ou 9,
       caractérisée en ce que,
       dans la zone du dispositif de répartition, et de collecte (5), les plans ont un écartement (20) de 1,5 m maximum.
  11. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       la projection horizontale de la paroi latérale cylindrique (7) dans la zone des orifices (11) pour les raccordements d'entrée (2) est la même que dans la zone des orifices (12) pour les raccordements (3) de pâte à papier acceptée.
  12. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       la projection horizontale de 'la paroi latérale (7) correspond à un polygone régulier.
  13. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       le dispositif de répartition et de collecte (5) est agencé sous la forme d'une unité d'appareillage.
  14. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que,
       par rapport au sens de l'écoulement (6), la cloison de séparation (9) forme un angle (α) qui est compris entre 60° et 90°.
  15. Installation d'hydrocylones selon la revendication 14,
       caractérisée en ce que
       l'angle (α) est de 90°.
  16. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       les raccordements pour la fraction légère des hydrocyclones (1) débouchent dans les orifices (12) situés en aval de la cloison de séparation (9).
  17. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       des éléments d'étanchéité annulaires élastiques (15) sont insérés dans les orifices (11, 12) de telle sorte qu'une de leurs extrémités axiales pénètre dans l'orifice (11, 12), et que leur autre extrémité axiale serve à la réception du raccordement d'entrée (2) ou du raccordement (3) de pâte à papier acceptée ou du raccordement de rejet (4).
  18. Installation d'hydrocylones selon l'une quelconque des revendications précédentes,
       caractérisée en ce que
       les raccordements de rejet (4) des hydrocyclones (1) débouchent dans une conduite de rejet (16) disposée de façon annulaire autour du dispositif de répartition et de collecte (5).
EP00116473A 1999-09-21 2000-07-29 Installation à hydrocyclones Expired - Lifetime EP1087055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29916596U 1999-09-21
DE29916596U DE29916596U1 (de) 1999-09-21 1999-09-21 Hydrozyklonanlage

Publications (2)

Publication Number Publication Date
EP1087055A1 EP1087055A1 (fr) 2001-03-28
EP1087055B1 true EP1087055B1 (fr) 2004-10-13

Family

ID=8079211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116473A Expired - Lifetime EP1087055B1 (fr) 1999-09-21 2000-07-29 Installation à hydrocyclones

Country Status (3)

Country Link
EP (1) EP1087055B1 (fr)
AT (1) ATE279572T1 (fr)
DE (2) DE29916596U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20010900U1 (de) * 2000-06-20 2000-08-24 Voith Sulzer Papiertechnik Patent GmbH, 88213 Ravensburg Hydrozyklonanlage
CA2471048C (fr) 2002-09-19 2006-04-25 Suncor Energy Inc. Cyclone d'hydrocarbures de mousse bitumineuse
US7736501B2 (en) 2002-09-19 2010-06-15 Suncor Energy Inc. System and process for concentrating hydrocarbons in a bitumen feed
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267048A (en) * 1979-03-12 1981-05-12 Oishikikai Mfg. Co., Ltd. Equipment for separating foreign matter from liquid papermaking materials
DE4342289A1 (de) * 1993-12-11 1995-06-14 Hans Joachim Dr Ing Schultz Verfahren und Vorrichtung zum kontinuierlichen Trennen von in einer Stoffsuspension enthaltenen erwünschten von unerwünschten Stoffen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9885196B2 (en) 2015-01-26 2018-02-06 Hayward Industries, Inc. Pool cleaner power coupling
US9909333B2 (en) 2015-01-26 2018-03-06 Hayward Industries, Inc. Swimming pool cleaner with hydrocyclonic particle separator and/or six-roller drive system
US10557278B2 (en) 2015-01-26 2020-02-11 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US11236523B2 (en) 2015-01-26 2022-02-01 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US12065854B2 (en) 2015-01-26 2024-08-20 Hayward Industries, Inc. Pool cleaner with cyclonic flow
US9885194B1 (en) 2017-05-11 2018-02-06 Hayward Industries, Inc. Pool cleaner impeller subassembly
US9896858B1 (en) 2017-05-11 2018-02-20 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US10156083B2 (en) 2017-05-11 2018-12-18 Hayward Industries, Inc. Pool cleaner power coupling
US10253517B2 (en) 2017-05-11 2019-04-09 Hayward Industries, Inc. Hydrocyclonic pool cleaner
US10767382B2 (en) 2017-05-11 2020-09-08 Hayward Industries, Inc. Pool cleaner impeller subassembly

Also Published As

Publication number Publication date
DE29916596U1 (de) 2000-01-05
DE50008211D1 (de) 2004-11-18
ATE279572T1 (de) 2004-10-15
EP1087055A1 (fr) 2001-03-28

Similar Documents

Publication Publication Date Title
DE2349702C2 (de) Verfahren und Vorrichtung zum Fraktionieren einer Suspension mittels Hydrozyklonen
DE2312618C2 (de) Vorrichtung zum Reinigen von Suspensionen mit einem Hydrozyklon
EP1087055B1 (fr) Installation à hydrocyclones
DE69523458T2 (de) Verfahren und vorrichtung zum sieben von fasersuspensionen
EP2516733A1 (fr) Procédé et dispositif de tamisage pour le tamisage d'une suspension de matière fibreuse
EP0736328A1 (fr) Dispositif pour broyeur à jet à lit fluidisé
EP0185316A2 (fr) Tambour à dragéifier
EP3541527A1 (fr) Ensemble hydrocyclone
EP0873675B1 (fr) Semoir pneumatique ou semoir a distributeur
DE69916328T2 (de) Vorrichtung zum dispergieren von schüttgut im innenraum eines behälters
DE3638993C2 (fr)
DE3537906A1 (de) Zyklon-abscheider
EP1167621A1 (fr) Système d' hydrocyclones
AT392927B (de) Absaugsystem fuer den bereich der holzverarbeitung
DE69912424T2 (de) Siebvorrichtung mit zwei siebkammern zur trennung von fasersuspensionen
DE4417461C2 (de) Zentralverteiler
DE102015008498A1 (de) Elektrofilter für Kleinfeuerungsanlagen
DE2627243A1 (de) Elektrostatischer abscheider
DE19805448C2 (de) Verfahren und Vorrichtung zur Reinigung und Zuführung einer Papierstoffsuspension in den Stoffauflauf einer Papiermaschine
DE3240487C2 (de) Drucksichter für Fasersuspensionen
DE3209412C2 (de) Vorrichtung zur Reinhaltung von Stützisolatoren in Elektroabscheidern
DE69320189T2 (de) Vorrichtung zur behandlung von flüssigkeit
EP1462567B1 (fr) Classeur pour la purification d'une suspension fibreuse
EP1424436A1 (fr) Installation de purification et de dégazage de suspension fibreuse
EP2195115B1 (fr) Structure de construction de dispositifs d'epuration de gaz d'echappement

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 DE FI FR GB 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: 20010928

AKX Designation fees paid

Free format text: AT DE FI FR GB SE

17Q First examination report despatched

Effective date: 20030915

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 DE FI FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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

Effective date: 20041013

REF Corresponds to:

Ref document number: 50008211

Country of ref document: DE

Date of ref document: 20041118

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

ET Fr: translation filed
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: 20050714

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

Ref country code: GB

Payment date: 20110721

Year of fee payment: 12

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

Ref country code: FI

Payment date: 20120711

Year of fee payment: 13

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

Effective date: 20120729

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

Ref country code: GB

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

Effective date: 20120729

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

Ref country code: DE

Payment date: 20130722

Year of fee payment: 14

Ref country code: SE

Payment date: 20130719

Year of fee payment: 14

Ref country code: AT

Payment date: 20130711

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20130722

Year of fee payment: 14

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: 20130729

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50008211

Country of ref document: DE

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: 279572

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140729

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150331

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: 20150203

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50008211

Country of ref document: DE

Effective date: 20150203

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: 20140731

Ref country code: SE

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

Effective date: 20140730

Ref country code: AT

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

Effective date: 20140729