[go: up one dir, main page]

EP3551797B1 - Alimentation à contre-spirale dans un séparateur supérieur pour un lessiveur - Google Patents

Alimentation à contre-spirale dans un séparateur supérieur pour un lessiveur Download PDF

Info

Publication number
EP3551797B1
EP3551797B1 EP17879158.8A EP17879158A EP3551797B1 EP 3551797 B1 EP3551797 B1 EP 3551797B1 EP 17879158 A EP17879158 A EP 17879158A EP 3551797 B1 EP3551797 B1 EP 3551797B1
Authority
EP
European Patent Office
Prior art keywords
ramp
screw feeder
top separator
screw
screen basket
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.)
Active
Application number
EP17879158.8A
Other languages
German (de)
English (en)
Other versions
EP3551797A1 (fr
EP3551797A4 (fr
Inventor
Roger JANSSON
Jerk SÖDERMAN
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
Valmet AB
Original Assignee
Valmet Oy
Valmet AB
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 Valmet Oy, Valmet AB filed Critical Valmet Oy
Publication of EP3551797A1 publication Critical patent/EP3551797A1/fr
Publication of EP3551797A4 publication Critical patent/EP3551797A4/fr
Application granted granted Critical
Publication of EP3551797B1 publication Critical patent/EP3551797B1/fr
Active 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
    • D21C7/06—Feeding devices
    • 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

Definitions

  • the present invention relates generally to a top separator to be used in, for example, a continuous steam-liquid phase digester for the manufacture of pulp from lignocellulosic material, such as wood chips, and more particularly to a top separator comprising a housing, a casing arranged in the housing, a screen basket arranged in the casing, a screw feeder arranged in the screen basket for conveying a chip slurry from a lower end of the screen basket to an upper end thereof, and an inlet arrangement located in a bottom portion of the casing and in close relation to a lower end of the screw feeder and arranged for supplying a chip slurry into the casing for further transport by the screw flight of the screw feeder, said inlet arrangement being directed generally opposite to the rotational direction of the screw feeder and comprising a ramp-like structure, which extends in a helical path with essentially the same pitch as the screw flight of the screw feeder.
  • a top separator is a device which is mounted at the top of a treatment vessel, such as a continuous digester, a prehydrolysis vessel, or a pre-impregnation vessel, for the manufacture of pulp from lignocellulosic material.
  • the main purpose of the top separator is to dewater a chip slurry, which consists of comminuted lignocellulosic material and liquid and which has been fed to the top separator via one or several supply pipes.
  • the top separator comprises a screw feeder, which is vertically arranged in a screen basket, to transport the chip slurry from a lower end of the screen basket to an upper end thereof.
  • the suspension of chips and liquid is via one or several supply pipes pumped to the top of the treatment vessel, where the chip slurry is introduced into the top separator via an inlet arrangement.
  • the inlet arrangement is located in a bottom portion of a top separator housing, but also other positions for an inlet arrangement have been suggested.
  • the U.S. Patent No. 6,086,717 to Snekkenes et al. discloses a typical top separator arrangement, which comprises a vertical screen basket, in which a rotatable screw feeder is mounted.
  • a pressurized supply line for pumping and supplying impregnated chips into the top separator is arranged at an off-central position in a bottom portion of the screen basket.
  • a problem with this type of vertical inlet arrangement at an off-central position in a bottom portion of a screen basket is that when the lowest screw flight of the screw feeder passes over the inlet opening of the pressurized supply line, the inlet opening is temporarily blocked, which leads to a sudden pressure build-up, which, in turn, causes a mechanical load in the form of a pulsation in the screw feeder, thereby inducing excessive wear of the screw feeder and a need to make the screw feeder, including bearings and bushings, as well as the entire top separator bigger and stronger and consequently more costly.
  • top separators which include an inlet opening in a bottom portion
  • Such an arrangement will, however, lead to less efficient transport of material and thereby to impaired overall performance of the top separator.
  • a liquid separator which comprises a vertical screw conveyor arranged in a perforated wall casing comprising a tube conduit which opens tangentially into the interior of the wall casing at some distance above the bottom of the wall casing.
  • the liquid separator does therefore not make efficient use of the whole screening height of the wall casing.
  • an inlet arrangement comprising a tube conduit that extends through a screening casing is a complex construction, not least with modern screen baskets which typically have very permeable and open walls with little support material that can provide sufficient structural integrity for a reliable and durable inlet arrangement.
  • a still further object is to provide an improved design for a top separator, which design allows the same or higher chip transport capacity without increasing the overall dimensions or rotational speed of a screw feeder arranged in the top separator.
  • a top separator comprising a housing, a casing arranged in the housing, a screen basket arranged in the casing, a screw feeder vertically arranged in the screen basket, and an inlet arrangement according to the independent claim.
  • Preferred embodiments are set forth in the dependent claims.
  • the present invention relates to a top separator, which typically is to be used in a continuous steam-liquid digester, although the top separator can be used in other types of pulp-treatment vessels, such as different types of prehydrolysis vessels and pre-impregnation vessels.
  • the top separator is designed to transport a suspension of lignocellulosic material, also referred to as a chip slurry, in a vertical direction and comprises essentially a housing, in which a casing is arranged, a screen basket arranged in the casing, and a vertical screw feeder, which is driven by a motor unit and which at least partly is arranged inside the screen basket, for transporting the material suspension from a bottom or lower portion of the screen basket to an upper portion thereof.
  • the material suspension is drained as liquid passes through a perforated wall of the screen basket and is collected in a liquid-collecting space provided between the screen basket and the casing, while the now drier lignocellulosic material is fed to the top of the screen basket where it falls over the upper edges of the screen basket and the casing and into the treatment vessel located therebeneath.
  • a top separator in general is designed to transport material upwards, the material suspension is typically introduced into the top separator via at least one inlet located in a lower portion of the top separator or at a lower portion of the screen basket, depending on the specific design of the top separator in question.
  • the material suspension is via one or several supply pipes conveyed into the top separator by means of one or several pumps; and a supply pipe connected to the inlet is consequently pressurized, with a pressure higher than the pressure prevailing inside the housing of the top separator.
  • a supply pipe connected to the inlet is consequently pressurized, with a pressure higher than the pressure prevailing inside the housing of the top separator.
  • a top separator according to the disclosure comprises a housing, an interior casing arranged in the housing, a screen basket arranged in the interior casing, and a screw feeder, which is vertically arranged in the screen basket.
  • the top separator comprises further an inlet arrangement, which can be provided in a lower portion of the housing and below the screen basket, or at the level of a lower end of the screen basket.
  • the inlet arrangement is provided in a bottom portion of the interior casing that encloses the screen basket.
  • the inlet arrangement which is the main subject matter of the present invention, comprises an open and ramp-like structure, which extends a distance in a helical path, from a lower level, where the material suspension enters the ramp-like structure via an inlet opening, to a higher level, where the material suspension leaves the ramp-like structure and is introduced into the interior casing of the top separator and encounters a lower flight of the rotating screw feeder.
  • the ramp-like, helical structure extends from a first, lower level to a second, higher level, the ramp-like, helical structure can be said to be characterized by a ramp pitch; and preferably this ramp pitch is substantially equal to the pitch of the screw feeder.
  • the helical ramp structure is further characterized by a ramp width, which can be matched to the height of the screw flight of the screw feeder.
  • the helical ramp structure, or rather the upper part of it, is further preferably an open structure, which implies that there is no well-defined and confined opening directed into the interior casing of the top separator, rather the material suspension is introduced into the casing along the entire length of the helical path of the ramp-like structure, or at least along a substantial portion of the helical length of the ramp structure.
  • Fig. 1 illustrates schematically a top separator 1, which comprises a housing 2, an interior casing 3 vertically arranged in the housing 2, a permeable vertical screen basket 4 arranged in the interior casing 3, and an inlet arrangement 5.
  • the interior casing 3 and the screen basket 4 are dimensioned such that a circumferential liquid-collecting space 6 is provided between the interior casing 3 and the permeable screen basket 4.
  • the top separator 1, including its main parts, extends essentially in a vertical direction and comprises further a rotatable, vertically arranged screw feeder 7, which comprises a central shaft 8 and which is driven by a motor unit 9, which by a gear box 10 is connected to an upper end of the shaft 8.
  • the screw feeder 7 is provided with a screw blade or screw flight 11, which in a conventional manner are characterized by a screw pitch p 1 and by a flight height h 1 , as indicated in Fig. 1 . Furthermore, for the use of the present invention, a lowest portion of the screw flight 11 is of particular interest, and in Fig. 2 the lowest screw flight portion is indicated with reference numeral 11a.
  • the top separator 1 is mounted on top of a pulp-treatment vessel, e.g. a continuous liquid-steam phase digester, a pre-impregnation vessel or a prehydrolysis vessel.
  • the inlet arrangement 5 is located in a bottom part of the housing 2, and more specifically slightly below a lower end of the screen basket 4.
  • the screen basket 4 has an cylindrical shape without a bottom part, and the inlet arrangement 5 is arranged in a base plate or bottom portion 12 of the interior casing 3 and comprises an inlet opening 13, which is connected to a supply pipe 14 for supplying a suspension of lignocellulosic material and liquid into the top separator 1.
  • a supply pipe 14 for supplying a suspension of lignocellulosic material and liquid into the top separator 1.
  • the inlet arrangement 5 comprises a ramp structure 15, with a bottom ramp portion 16, an inner ramp wall 17, a rear ramp wall 18, and an outer ramp wall 19 (not seen in Fig. 2 ), and extends in a helical path, from a first, lower level, where the inlet opening 13 is located and arranged in the rear ramp wall 18, to a second, higher level, where the bottom ramp portion 16 ends and is in level with the bottom portion 12 of the interior casing 3.
  • the inlet arrangement 5 can therefore be regarded as an integrated part of the bottom portion 12 of the interior casing 3.
  • the upper area of the ramp structure 15 is open such that a material suspension enters into the interior casing 3 (and thereby into the screening basket 4) along the helical length of the ramp structure 15.
  • the ramp structure 15, and in particular the bottom ramp portion 16, enters the interior casing 3 at a first, lower level and then goes in a helical path to a second, higher level where the bottom ramp portion 16 ends in level with the bottom portion 12 of the interior casing 3.
  • the ramp structure 15 can therefore be characterized by a ramp pitch p 2 , as is indicated in Fig. 2 .
  • the ramp pitch p 2 is equal to, or essentially equal to, the screw pitch p 1 of the screw flight 11 of the screw feeder 7, and is in particular equal, or substantially equal, to the screw pitch p 1 of the lowest portion of the screw feeder 7, i.e. the portion of the screw feeder 7 that includes the lowest screw flight portion 11a.
  • the ramp pitch p 2 can, for example, differ less than 20 % from the screw pitch p 1 of the lowest screw flight portion 11a of the screw feeder 7, and more preferably less than 10 %, and even more preferably less than 5 %.
  • the supply pipe 14, or at least the last portion thereof, which ends in the inlet opening 13 of the inlet arrangement 5, is preferably directed with the same, or almost the same, pitch p 2 into the inlet arrangement 5, to thereby ensure that an incoming pulp flow follows the helical path of the ramp structure 15.
  • the supply pipe 14, or at least the last portion thereof has preferably a circumferential direction which is equal to, or substantially equal to, a circumferential direction of the ramp structure 15.
  • the ramp structure 15 is further characterized by a ramp width w 2 , which consequently is the width of the bottom ramp structure 16, as is indicated in Fig. 2 .
  • the ramp width w 2 can preferably be made approximately equal to, or somewhat smaller than (as in Fig. 2 ), the flight height h 1 of the screw flight 11 of the screw feeder 7, and in particular equal to, or approximately equal to, or somewhat smaller than, the lowest screw flight portion 11a, to effectively utilize the transport capacity of the screw feeder 7.
  • the inlet arrangement 5 when in use, the inlet arrangement 5 is arranged in such a way that the lowest screw flight portion 11a of the screw feeder 7, whose rotational direction is indicated by the arrow R 1 in Fig 2 , sweeps over the ramp structure 15 of the inlet arrangement 5, with only a relatively small clearance between a lower edge of the lowest screw flight portion 11a and the surface of the bottom portion 12 of the interior casing 3, to thereby in an effective manner bring the material suspension onto the lowest screw flight portion 11a of the screw feeder 7 for further transport upwards in a vertical direction.
  • the inlet arrangement 5 is arranged and directed such that the ramp structure 15 enters the bottom portion 12 of the interior casing 3 in a tangential or circumferential direction, which further is directed opposite to the rotational direction R 1 of the screw feeder 7.
  • the direction of the ramp structure 15 is defined as being the same general direction as the direction of the incoming pulp flow.
  • the inlet opening 13 (and preferably at least the last portion of the supply pipe 14) enters the inlet arrangement 5 and ramp structure 15 with essentially the same tangential or circumferential direction as the ramp structure 15 enters the interior casing 3.
  • the present inlet arrangement 5 With the inlet opening 13 entering the top separator 1 and in particular entering the interior casing 3 in a circumferential direction, or tangential direction, at a radial position slightly inside the interior casing 3 and also slightly radially inside but also below the screen basket 4, which is positioned within the interior casing 3, the incoming pulp flow will encounter and be forced onto the lowest screw flight portion 11a of the screw feeder 7, which rotates in a direction generally opposite to the direction of the incoming pulp flow.
  • the ramp structure 15 is preferably arranged with a ramp pitch p 2 , which is approximately equal to the flight pitch p 1 of the screw feeder 7, such that a minimal amount of impact forces are created between the incoming pulp and the rotating screw feeder 7.
  • the supply pipe 14 and in particular the inlet opening 13 are directed with approximately the same pitch as the ramp pitch p 2 , to ensure that the incoming pulp flow follows and is guided by the ramp structure 15.
  • the inlet arrangement 5 comprising the helical ramp structure 15, which ends in the surface of the bottom portion 12 of the interior casing 3 of the top separator 1, the material suspension flow, which is confined between the bottom ramp portion 16, the inner ramp wall 17 and the outer ramp wall 19 will follow and be guided by the helical ramp structure 15 until it encounters the lowest screw flight portion 11a of the screw feeder 7.
  • the incoming material flow will already when entering the housing 2 and the interior casing 3 have the same general inclination as the lowest screw flight portion 11a of the screw feeder 7 in relation to the bottom part 12 of the internal casing 3.
  • This feature in particular in combination with a large open area provided by an open upper area of the ramp structure 15, which ensures that the incoming material flow is never completely blocked by the lowest screw flight portion 11a as the screw feeder 7 rotates, provides for a material transport and dewatering that is essentially free from pulsations, which, in turn, reduces the wear induced into parts and components of the screw feeder 7 and ensures an effective material transport.

Landscapes

  • Paper (AREA)

Claims (3)

  1. Séparateur supérieur (1) pour cuve de traitement destinée à la fabrication de pâte à partir de matériau de lignocellulose, comprenant :
    un boîtier (2),
    un compartiment intérieur (3) disposé dans le boîtier (2) et doté d'une section de fond (12),
    un panier à tamis (4) disposé dans le compartiment intérieur (3),
    un alimentateur à vis (7) disposé verticalement dans le palier à tamis (3) pour tourner dans le sens de rotation (R1) et comprenant un filet de vis (11) doté d'une section de filet de vis la plus basse (11a) qui est positionnée légèrement au-dessus de la section de fond (12), et
    un dispositif d'admission (5) comprenant une ouverture d'admission (13) et qui est connecté à un tuyau d'alimentation (14) destiné à fournir un flux de pâte,
    caractérisé en ce que le dispositif d'admission (5) comprend une structure de rampe hélicoïdale (15) qui comprend une paroi de rampe arrière (18) dans laquelle ouverture d'admission (13) est disposée, une section de rampe de fond (16), une section de rampe intérieure (17) et une section de rampe extérieure (19), et s'étend depuis un premier niveau bas où l'ouverture d'admission (13) se trouve jusqu'à un second niveau haut qui est de niveau avec la section de fond (12) du compartiment intérieur (3), la structure de rampe hélicoïdale (15) étant dirigée, vue dans le sens du flux de pâte, dans un sens circonférentiel jusque dans le compartiment intérieur (3), lequel sens circonférentiel est dirigé globalement à l'opposé du sens de rotation (R1) de l'alimentateur à vis (7).
  2. Séparateur supérieur (1) selon la revendication 1, caractérisé en ce que la structure de rampe hélicoïdale (15) a un pas de rampe (p2) qui est sensiblement égal à un pas de filet (p1) de l'alimentateur à vis (7).
  3. Séparateur supérieur (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la structure de rampe (16) a une largeur de rampe (w2) qui est sensiblement égale à une hauteur de filet (h1) de l'alimentateur à vis (7).
EP17879158.8A 2016-12-09 2017-11-30 Alimentation à contre-spirale dans un séparateur supérieur pour un lessiveur Active EP3551797B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1651626A SE540251C2 (en) 2016-12-09 2016-12-09 Counter-spiral feeding in a top separator for a digester
PCT/SE2017/051197 WO2018106169A1 (fr) 2016-12-09 2017-11-30 Alimentation à contre-spirale dans un séparateur supérieur pour un lessiveur

Publications (3)

Publication Number Publication Date
EP3551797A1 EP3551797A1 (fr) 2019-10-16
EP3551797A4 EP3551797A4 (fr) 2020-05-27
EP3551797B1 true EP3551797B1 (fr) 2022-09-14

Family

ID=62105059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17879158.8A Active EP3551797B1 (fr) 2016-12-09 2017-11-30 Alimentation à contre-spirale dans un séparateur supérieur pour un lessiveur

Country Status (4)

Country Link
EP (1) EP3551797B1 (fr)
BR (1) BR112019006058B1 (fr)
SE (1) SE540251C2 (fr)
WO (1) WO2018106169A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113976598A (zh) * 2021-11-25 2022-01-28 重庆长征重工有限责任公司 螺旋挤压进料装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI44513C (fi) * 1963-01-08 1971-11-10 Defibrator Ab Laite kuitumassan jatkuvaa valmistamista varten lignoselluloosapitoisesta aineesta
US3902962A (en) * 1969-11-14 1975-09-02 Rolf Bertil Reinhall Liquid separator for lignocellulose containing material
US6086717A (en) * 1997-08-07 2000-07-11 Kvaerner Pulping Ab Separator having a screen basket disposed in a digester
US6589391B2 (en) * 2000-12-19 2003-07-08 Andritz Inc. Top separator with intraseal for digester vessel in a pulp or fiber processing system
US7105076B2 (en) * 2002-02-04 2006-09-12 Andritz Inc. Gas phase continuous digester having an inverted top separator with liquor injection
US7309401B2 (en) * 2003-05-12 2007-12-18 Andritz Inc. Top separator for gas phase and hydraulic phase continuous digesters and method for converting digester
WO2012060749A1 (fr) * 2010-11-03 2012-05-10 Metso Paper Sweden Ab Séparateur supérieur pour un digesteur vapeur/liquide
US20130146547A1 (en) * 2011-12-07 2013-06-13 Andritz Inc. Screen basket having diagonal slots for top separator of a digester

Also Published As

Publication number Publication date
SE1651626A1 (en) 2018-05-15
SE540251C2 (en) 2018-05-15
EP3551797A1 (fr) 2019-10-16
BR112019006058A2 (pt) 2019-06-18
BR112019006058B1 (pt) 2022-12-13
WO2018106169A1 (fr) 2018-06-14
EP3551797A4 (fr) 2020-05-27

Similar Documents

Publication Publication Date Title
US6315128B1 (en) Tramp material removal from pulp feed systems
US4826398A (en) Medium consistency pump with self-feeding
SE531498C2 (sv) Matning av finfördelat fibermaterial
SE0500751A1 (sv) Matning av finfördelat fibermaterial
JP2003129391A (ja) インライン液抜き出し装置の改良
US6368453B1 (en) Chip feeding to a comminuted cellulosic fibrous material treatment vessel
EP3551797B1 (fr) Alimentation à contre-spirale dans un séparateur supérieur pour un lessiveur
WO2003035971A1 (fr) Contenant a dispositif de dechargement
US3902962A (en) Liquid separator for lignocellulose containing material
WO1994021855A1 (fr) Procede et appareil pour feeder a haute pression de grande capacite
EP2607547B1 (fr) Panier de tamis à fentes diagonales pour séparateur supérieur d'un lessiveur de pate à papier
FI65292B (fi) Silanordning foer en vaetskesuspension
SE530996C2 (sv) Förfarande och anordning för att mata cellulosaflis till ett högtryckssystem för kontinuerlig kokning
US20040035804A1 (en) Separating device for separating fluids from solids and use thereof
SE532007C2 (sv) Toppseparatorarrangemang för kontinuerliga kokare med gasfas och hydralisk fas och förfarande för omvandling av kokare
US5323914A (en) Method of and apparatus for separating heavy impurities from fiber suspensions in connection with pumping
US6451172B1 (en) In-line drainer enhancements
WO2012060749A1 (fr) Séparateur supérieur pour un digesteur vapeur/liquide
US20100269695A1 (en) Separation pump
JP4739518B2 (ja) セルロース含有材料の連続蒸解に関連する供給システム
NO325304B1 (no) Fremgangsmate og innretning for a underlette pumping av cellulosemasse.
US20070235279A1 (en) Automotive oil-bath clutch
JPS5910375A (ja) 粗選機

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190314

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20200428

RIC1 Information provided on ipc code assigned before grant

Ipc: D21C 7/06 20060101AFI20200421BHEP

Ipc: D21C 7/00 20060101ALI20200421BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220520

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SOEDERMAN, JERK

Inventor name: JANSSON, ROGER

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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: DE

Ref legal event code: R096

Ref document number: 602017061884

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1518763

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221015

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220914

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

Effective date: 20220914

Ref country code: RS

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: 20220914

Ref country code: NO

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: 20221214

Ref country code: LV

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: 20220914

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: 20220914

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

Ref country code: HR

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: 20220914

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: 20221215

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

Ref country code: SM

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: 20220914

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: 20220914

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: 20230116

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: 20220914

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: 20220914

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

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: 20220914

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: 20220914

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: 20230114

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: 20220914

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602017061884

Country of ref document: DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230503

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: 20220914

Ref country code: MC

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: 20220914

Ref country code: AL

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: 20220914

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

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20221130

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

Ref country code: LI

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

Effective date: 20221130

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: 20220914

Ref country code: CH

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

Effective date: 20221130

26N No opposition filed

Effective date: 20230615

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

Effective date: 20221214

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

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: 20220914

Ref country code: LU

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

Effective date: 20221130

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: 20221130

Ref country code: GB

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

Effective date: 20221214

Ref country code: DE

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

Effective date: 20230601

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

Ref country code: BE

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

Effective date: 20221130

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; INVALID AB INITIO

Effective date: 20171130

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

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: 20220914

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

Ref country code: MK

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: 20220914

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: 20220914

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: 20220914

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 1518763

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220914

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

Ref country code: MT

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: 20220914

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

Ref country code: FI

Payment date: 20241120

Year of fee payment: 8

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

Ref country code: FR

Payment date: 20241115

Year of fee payment: 8

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

Ref country code: AT

Payment date: 20241119

Year of fee payment: 8