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EP3833816B1 - Système de presse - Google Patents

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Publication number
EP3833816B1
EP3833816B1 EP19748821.6A EP19748821A EP3833816B1 EP 3833816 B1 EP3833816 B1 EP 3833816B1 EP 19748821 A EP19748821 A EP 19748821A EP 3833816 B1 EP3833816 B1 EP 3833816B1
Authority
EP
European Patent Office
Prior art keywords
web
pressing arrangement
arrangement according
pressure nip
press roller
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
EP19748821.6A
Other languages
German (de)
English (en)
Other versions
EP3833816A1 (fr
Inventor
Daniel Gronych
Richard Horn
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 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=67514655&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3833816(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP3833816A1 publication Critical patent/EP3833816A1/fr
Application granted granted Critical
Publication of EP3833816B1 publication Critical patent/EP3833816B1/fr
Active legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/32—Washing wire-cloths or felts
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/04—Paper-break control devices

Definitions

  • the invention relates to a press arrangement for dewatering a paper or cardboard web with a basis weight between 60 and 250 g/m 2 and at a machine speed of up to 1800 m/min, consisting of four press rollers for forming three press nips through which the web runs together with at least one endlessly rotating, water-absorbing dewatering belt.
  • the fibrous webs produced from them lead to greater contamination of the elements coming into contact with them, especially if these elements have a relatively high adhesion, in particular a smooth surface.
  • the press nips often have two separate dewatering belts so that the fibrous web can be safely guided between the two.
  • this is also associated with high costs and a high level of remoistening of the fibrous web after the press nips.
  • the object of the invention is therefore to enable high dry contents with safe web guidance and the lowest possible costs.
  • Figures 1 and 2 show two differently designed press arrangements for dewatering a paper or cardboard web 1 with a basis weight between 60 and 250 g/m 2 at a web speed of up to 1800 m/min in a schematic representation.
  • the fibrous web 1 is transferred from a forming screen 19 of an upstream former to a water-absorbing, upper dewatering belt 7 of the press arrangement.
  • This dewatering belt 7 then guides the web 1 together with a water-absorbing dewatering belt 6 running beneath the web 1 through a first press nip of the press arrangement.
  • This press nip is extended and is formed by a lower shoe press roll 2 and an upper, vacuum-operated press roll 3.
  • Shoe press rolls 2, 5 have a flexible roll shell that is pressed by a press shoe with a concave pressing surface to the cylindrical counter press roll 3, 4 to form an extended press nip. Due to the extended residence time of the web 1 in the press nip, they enable intensive but gentle dewatering.
  • the web in the first press nip has a relatively high moisture content, it is sufficient to preserve the volume if the shoe length of the corresponding shoe press roll 2 is less than 270 mm, preferably less than 220 mm and in particular less than 140 mm.
  • the line load in the first press nip should be greater than 100 kN/m, preferably greater than 150 kN/m and in particular greater than 175 kN/m.
  • the shoe press roll 2 of the first press nip has several, preferably three, pressure zones arranged next to one another transversely to the web running direction 20 and which can be controlled separately.
  • the suction-fed press roller 3, like the suction guide rollers 10, which are wrapped around by an air-permeable dewatering belt 6, 7, 9 of the press arrangement, has a perforated roller shell, the interior of which is at least partially connected to a vacuum source.
  • the cylindrical, vacuum-operated press roller 3 of the first extended press nip should have a shell thickness of at least 40 mm.
  • the negative pressure not only supports the drainage of the water pressed out of the web 1, but also the adhesion of the web 1 to the corresponding dewatering belt 7, so that the lower dewatering belt 6 can be easily guided away from the web 1 after the first press nip.
  • the web 1 runs together with the upper dewatering belt 7 through a second press nip of the press arrangement, which is formed by the vacuumed press roll 3 and a further cylindrical press roll 4 with a smooth outer surface.
  • the web 1 is then guided solely on the smooth outer surface of the press roll 4 to a third press nip, which is also extended and is formed for this purpose by the further, cylindrical press roll 4 and a further shoe press roll 5 arranged above the web 1 and wrapped by a water-absorbing dewatering belt 9.
  • the moisture content in the first extended press nip is significantly higher than in the second extended press nip, it is sufficient to protect the web volume if the first extended press nip is at most as long as the second extended press nip and/or the line load in the first extended press nip is at most as large as in the second extended press nip.
  • the web 1 within the press arrangement can be exposed to hot steam via one or more steam blow boxes 11.
  • the areas between the first and second and between the second and third press nips are particularly suitable for this.
  • the web guidance in the region of the extended press nip is improved in that the web 1 wraps around the corresponding cylindrical press roller 3, 4 before and after each extended press nip with at least 20 mm.
  • the water-absorbing drainage belts 6,7,9 are designed as press felts.
  • the upper dewatering belt 9 is guided away from the web 1 after the third press nip and the web 1 is guided alone on the jacket of the smooth cylindrical press roll 4 until it is transferred to a drying screen 12 of a subsequent drying unit for drying the web 1.
  • Figure 2 the cylindrical press roller 4 of the second extended press nip is wrapped by an endlessly rotating, semi-permeable or an impermeable and smooth transfer belt 8, which accordingly runs below and together with the web 1 through the second and third press nip.
  • the web 1 is then transferred without free tension from the transfer belt 8 to the drying fabric 12 of the following drying unit.
  • the cylindrical press roller 4 according to Figure 1 and the transfer belt 8 according to Figure 2 are so smooth that there is sufficient adhesion of the web 1 to the press roller 4 or the transfer belt 8 and the dewatering belt 9 after the third Press nip can be guided away from the web 1.
  • this adhesion is further strengthened by a short subsequent wrap around the lower press roller 4 by the upper dewatering belt 9.
  • the latter wraps around a suction guide roller 21 during the transfer, the vacuum of which, however, is not greater than 20 kPa when removed from the press roller 4.
  • the suction guide roller 21 When removing the web from the transfer belt 8 according to Figure 2 the suction guide roller 21 should have several separate suction zones, wherein to realize a high vacuum zone the vacuum of a suction zone is at least 20 kPa, preferably at least 25 kPa and in particular at least 30 kPa.
  • the web 1 is supported by the drying fabric 12 and guided in a meandering pattern alternately over heated drying cylinders 15 and suction guide rollers 16.
  • a removal scraper 17 and possibly also a subsequent cleaning scraper are assigned to the first drying cylinder 15 of the following drying group.
  • the removal scraper 17 separates the web 1 from the drying cylinder 15 during transfer and then guides it into a pulper 18 located below and between the first drying cylinder 15 and the following guide roller 16.
  • the axis of the first drying cylinder 15 with the removal scraper 17 and the axis of the following, suction-carried guide roller 16 are offset vertically from one another.
  • these axes have a horizontal distance from one another that is greater than 80%, preferably greater than 90% and in particular greater than 95% of the sum of the radii of this drying cylinder 15 and this guide roller 16.
  • a cleaning unit 13 for applying fluid to the transfer belt 8 and at least one scraper 14 are assigned to the transfer belt 8 after the web 1 has been delivered.
  • This cleaning device 13 directs a cleaning fluid, here water, at a pressure of at least 50, in particular at least 100 and preferably at least 120 bar onto the web-guiding side of the transfer belt 8.
  • the fluid is applied via at least one, preferably at least two, rows of nozzles, which are preferably aligned obliquely and advantageously oppositely inclined to the belt surface.
  • nozzles with a small opening diameter of less than 0.9, preferably less than 0.7 and in particular no more than 0.5 mm are used.
  • the dissolved contaminants are removed from the transfer belt 8 by the following scraper 14.
  • the transfer belt 8 is supported on at least one guide roller in the area of the cleaning device 13 and the scraper 14.

Landscapes

  • Paper (AREA)

Claims (13)

  1. Agencement de pressage pour l'égouttage d'une bande de papier ou de carton (1) d'un grammage compris entre 60 et 250 g/m2 et à une vitesse de machine de jusqu'à 1 800 m/min, constitué de quatre rouleaux de pressage (2, 3, 4, 5) pour la formation de trois fentes de pressage, à travers lesquelles la bande (1) passe conjointement avec respectivement au moins une bande d'égouttage (6, 7, 9) absorbant l'eau, circulant sans fin, les première et troisième fentes de pressage étant réalisées respectivement sous forme prolongée par la coopération d'un rouleau de pressage à sabot (2, 5) avec un rouleau de pressage cylindrique (3, 4), et le premier rouleau de pressage à sabot (2) étant agencé au-dessous et le deuxième rouleau de pressage à sabot (5) au-dessus de la bande (1), caractérisé en ce que la bande (1) entoure le rouleau de pressage cylindrique correspondant (3, 4) avant et après chaque fente de pressage prolongée sur au moins 20 mm.
  2. Agencement de pressage selon la revendication 1, caractérisé en ce que
    la bande (1) passe par au moins une fente de pressage prolongée conjointement avec, de chaque côté, une bande d'égouttage (6, 7, 9).
  3. Agencement de pressage selon la revendication 1 ou 2,
    caractérisé en ce que
    la première fente de pressage prolongée est au plus aussi longue que la deuxième fente de pressage prolongée.
  4. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la charge linéaire dans la première fente de pressage prolongée est au plus aussi grande que dans la deuxième fente de pressage prolongée.
  5. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le premier rouleau de pressage à sabot (2) possède plusieurs zones de pression agencées les unes à côté des autres transversalement à la direction de passage de la bande (20) et pouvant être commandées séparément.
  6. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le rouleau de pressage cylindrique (3) de la première fente prolongée est aspiré et présente de préférence une épaisseur d'enveloppe d'au moins 40 mm.
  7. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les bandes d'égouttage (6, 7, 9) s'enroulent conjointement avec la bande (1) autour de rouleaux aspirés (3, 10), parmi lesquels au moins un est entraîné.
  8. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins une boîte de soufflage de vapeur (11) est associée à la bande (1) à l'intérieur de l'agencement de pressage pour la sollicitation en vapeur de la bande (1).
  9. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le rouleau de pressage cylindrique (4) de la deuxième fente de pressage prolongée est entouré par une bande de transfert (8) semi-perméable ou imperméable, circulant sans fin, qui transfère la bande (1) sans traction libre à une toile de séchage (12) d'une unité de séchage suivante pour le séchage de la bande (1).
  10. Agencement de pressage selon la revendication 9, caractérisé en ce
    qu'un groupe de nettoyage (13) pour la sollicitation en fluide de la bande de transfert (8) ainsi qu'au moins un racloir (14) sont associés à la bande de transfert (8) après le déchargement de la bande (1).
  11. Agencement de pressage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la bande (1) est guidée à l'intérieur de l'unité de séchage qui suit l'agencement de pressage depuis la toile de séchage (12) en formant des méandres alternativement sur des cylindres de séchage chauffés (15) et des rouleaux de guidage (16), au moins un racloir (17) étant associé au premier cylindre de séchage (15).
  12. Agencement de pressage selon la revendication 11, caractérisé en ce
    qu'un pulpeur (18) est agencé sous et entre le premier cylindre de séchage (15) et le rouleau de guidage (16) suivant.
  13. Agencement de pressage selon la revendication 11 ou 12,
    caractérisé en ce que
    l'axe du premier cylindre de séchage (15) et l'axe du rouleau de guidage suivant (16) sont décalés verticalement l'un par rapport à l'autre et ont une distance horizontale l'un par rapport à l'autre qui est supérieure à 80 %, de préférence supérieure à 90 % et notamment supérieure à 95 % de la somme des rayons de ce cylindre de séchage (15) et de ce rouleau de guidage (16) .
EP19748821.6A 2018-08-09 2019-07-31 Système de presse Active EP3833816B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018119381.5A DE102018119381A1 (de) 2018-08-09 2018-08-09 Pressanordnung
PCT/EP2019/070687 WO2020030509A1 (fr) 2018-08-09 2019-07-31 Système de presse

Publications (2)

Publication Number Publication Date
EP3833816A1 EP3833816A1 (fr) 2021-06-16
EP3833816B1 true EP3833816B1 (fr) 2024-09-11

Family

ID=67514655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19748821.6A Active EP3833816B1 (fr) 2018-08-09 2019-07-31 Système de presse

Country Status (5)

Country Link
EP (1) EP3833816B1 (fr)
CN (1) CN112424421A (fr)
DE (1) DE102018119381A1 (fr)
FI (1) FI3833816T3 (fr)
WO (1) WO2020030509A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116219789A (zh) * 2023-03-29 2023-06-06 广东理文造纸有限公司 造纸用纸幅挤压脱水装置

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0276203A2 (fr) 1987-01-23 1988-07-27 Valmet Paper Machinery Inc. Procédé et dispositif dans la section de presse d'une machine à papier
US5468349A (en) 1993-06-26 1995-11-21 J. M. Voith Gmbh paper machine wire and pressing sections with impervious pressing belt
WO1997015718A1 (fr) 1995-10-20 1997-05-01 Valmet Corporation Section presse d'une machine a papier dans laquelle est utilisee une presse a ligne de pincement etendue
DE19543111A1 (de) 1995-11-18 1997-05-22 Voith Sulzer Papiermasch Gmbh Pressenpartie einer Papiermaschine mit geschlossener Bahnführung und Verfahren zum Entwässern einer Papierbahn
DE19654201A1 (de) 1996-12-23 1998-06-25 Voith Sulzer Papiermasch Gmbh Pressenpartie
DE19702575A1 (de) 1997-01-24 1998-07-30 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Faserstoffbahn
WO1999060202A1 (fr) 1998-05-15 1999-11-25 Valmet Corporation Section presse de machine a papier dans laquelle on applique une ou plusieurs pinces allongees
DE19912497A1 (de) 1999-03-19 2000-09-21 Voith Sulzer Papiertech Patent Presseanordnung
US6197159B1 (en) 1997-10-07 2001-03-06 Voith Sulzer Papiertechnik Patent Gmbh Paper making machine and method for web transfer
WO2001063042A1 (fr) 2000-02-22 2001-08-30 Metso Paper, Inc. Section a presse unique utilisee dans une machine a papier et a carton
US20040216624A1 (en) 2001-11-29 2004-11-04 Uwe Matuschczyk Press roll
DE10361269A1 (de) 2003-12-24 2005-07-28 Md Papier Gmbh & Co. Kg Breitnippresse zum Behandeln einer Materialbahn
DE102004034780A1 (de) 2004-07-19 2006-03-16 Voith Paper Patent Gmbh Langspaltpresse zum Auspressen einer laufenden Bahn, insbesondere einer Papierbahn
WO2006090014A1 (fr) 2005-02-23 2006-08-31 Metso Paper, Inc. Disposition dans la section de presse d’une machine de formation de bandes et racle
DE102005036903A1 (de) 2005-08-05 2007-02-08 Voith Patent Gmbh Vorrichtung zur Entwässerung einer Faserstoffbahn
EP1754822A2 (fr) 2005-08-19 2007-02-21 Voith Patent GmbH Procédé d'opération d'un dispositif de pressage
DE102005052858A1 (de) 2005-11-07 2007-05-10 Voith Patent Gmbh Reinigungssystem
DE102007021879A1 (de) 2007-05-10 2008-11-13 Voith Patent Gmbh Pressenanordnung und Maschine zur Herstellung einer Faserstoffbahn
DE102011004565A1 (de) 2011-02-23 2012-08-23 Voith Patent Gmbh Pressenpartie einer Maschine zur Herstellung einer Faserstoffbahn
DE202012012681U1 (de) 2012-08-21 2013-09-26 Voith Patent Gmbh Pressenpartie für eine Maschine zur Herstellung einer Faserstoffbahn
WO2017207475A1 (fr) 2016-06-03 2017-12-07 Voith Patent Gmbh Machine pour déshumidifier et sécher une bande de matière fibreuse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005031203A1 (de) * 2005-07-01 2007-01-25 Voith Patent Gmbh Papiermaschine
DE102007024508A1 (de) * 2007-05-25 2008-11-27 Voith Patent Gmbh Schuhsaugpresswalze

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0276203A2 (fr) 1987-01-23 1988-07-27 Valmet Paper Machinery Inc. Procédé et dispositif dans la section de presse d'une machine à papier
US5468349A (en) 1993-06-26 1995-11-21 J. M. Voith Gmbh paper machine wire and pressing sections with impervious pressing belt
WO1997015718A1 (fr) 1995-10-20 1997-05-01 Valmet Corporation Section presse d'une machine a papier dans laquelle est utilisee une presse a ligne de pincement etendue
DE19543111A1 (de) 1995-11-18 1997-05-22 Voith Sulzer Papiermasch Gmbh Pressenpartie einer Papiermaschine mit geschlossener Bahnführung und Verfahren zum Entwässern einer Papierbahn
DE19654201A1 (de) 1996-12-23 1998-06-25 Voith Sulzer Papiermasch Gmbh Pressenpartie
DE19702575A1 (de) 1997-01-24 1998-07-30 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Faserstoffbahn
US6197159B1 (en) 1997-10-07 2001-03-06 Voith Sulzer Papiertechnik Patent Gmbh Paper making machine and method for web transfer
WO1999060202A1 (fr) 1998-05-15 1999-11-25 Valmet Corporation Section presse de machine a papier dans laquelle on applique une ou plusieurs pinces allongees
DE19912497A1 (de) 1999-03-19 2000-09-21 Voith Sulzer Papiertech Patent Presseanordnung
WO2001063042A1 (fr) 2000-02-22 2001-08-30 Metso Paper, Inc. Section a presse unique utilisee dans une machine a papier et a carton
US20040216624A1 (en) 2001-11-29 2004-11-04 Uwe Matuschczyk Press roll
DE10361269A1 (de) 2003-12-24 2005-07-28 Md Papier Gmbh & Co. Kg Breitnippresse zum Behandeln einer Materialbahn
DE102004034780A1 (de) 2004-07-19 2006-03-16 Voith Paper Patent Gmbh Langspaltpresse zum Auspressen einer laufenden Bahn, insbesondere einer Papierbahn
WO2006090014A1 (fr) 2005-02-23 2006-08-31 Metso Paper, Inc. Disposition dans la section de presse d’une machine de formation de bandes et racle
DE102005036903A1 (de) 2005-08-05 2007-02-08 Voith Patent Gmbh Vorrichtung zur Entwässerung einer Faserstoffbahn
EP1754822A2 (fr) 2005-08-19 2007-02-21 Voith Patent GmbH Procédé d'opération d'un dispositif de pressage
DE102005052858A1 (de) 2005-11-07 2007-05-10 Voith Patent Gmbh Reinigungssystem
DE102007021879A1 (de) 2007-05-10 2008-11-13 Voith Patent Gmbh Pressenanordnung und Maschine zur Herstellung einer Faserstoffbahn
DE102011004565A1 (de) 2011-02-23 2012-08-23 Voith Patent Gmbh Pressenpartie einer Maschine zur Herstellung einer Faserstoffbahn
DE202012012681U1 (de) 2012-08-21 2013-09-26 Voith Patent Gmbh Pressenpartie für eine Maschine zur Herstellung einer Faserstoffbahn
WO2017207475A1 (fr) 2016-06-03 2017-12-07 Voith Patent Gmbh Machine pour déshumidifier et sécher une bande de matière fibreuse
DE102016209780A1 (de) 2016-06-03 2017-12-07 Voith Patent Gmbh Pressenpartie

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Title
"Papermaking Part 1, Stock preparation and wet end", vol. 8, 1 January 2000, FAPET OY, Fapet OY, ISBN: 952-5216-08-X, article JOHAN GULLICHSEN; HANNU PAULAPURO: "Chapter 8: Wet Pressing", pages: 285 - 342, XP009561590
D25 - Affidavit by Juha Kivimaa
D27 - Affidavit by Markus Veikkola
D28 - Technical drawing "layout paper machine", drawing no. 1.25-006740 by Voith
HOLIK, HERBERT: "HANDBOOK OF PAPER AND BOARD", 20 March 2006, WILEY-VCH-VERL. , Weinheim, DE , ISBN: 978-3-527-30997-9, article HOLIK HERBERT: "6.11 Paper and Board Machines", pages: 318 - 328, XP093287715, DOI: 10.1002/3527608257.ch6
KÖHLER ANDREAS: "Paper Machinery Divisions: Dagang – successful startup of an unprecedented project", TWOGETHER: PAPER TECHNOLOGY JOURNAL, VOITH PAPER HOLDING, no. 8, 2 September 2005 (2005-09-02), pages 14 - 17, XP093287728
RIESENBERGER HELMUT: "Paper Machinery Divisions: S.A.I.C.A. – the worldwide fastest paper machine for corrugated medium", TWOGETHER : PAPER TECHNOLOGY JOURNAL, no. 8, 2 September 2005 (2005-09-02), pages 34 - 35, XP093287733
SCHERB THOMAS T.: "Revolutionary new technology for tissue making", TWOGETHER : PAPER TECHNOLOGY JOURNAL, VOITH PAPER HOLDING GMBH & CO. KG, no. 8, 2 September 2005 (2005-09-02), pages 58 - 61, XP093287738

Also Published As

Publication number Publication date
CN112424421A (zh) 2021-02-26
DE102018119381A1 (de) 2020-02-13
EP3833816A1 (fr) 2021-06-16
FI3833816T3 (fi) 2024-11-26
WO2020030509A1 (fr) 2020-02-13

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