EP4069886B1 - Appareil de rinçage et son utilisation - Google Patents

Appareil de rinçage et son utilisation Download PDF

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Publication number
EP4069886B1
EP4069886B1 EP20812340.6A EP20812340A EP4069886B1 EP 4069886 B1 EP4069886 B1 EP 4069886B1 EP 20812340 A EP20812340 A EP 20812340A EP 4069886 B1 EP4069886 B1 EP 4069886B1
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EP
European Patent Office
Prior art keywords
metal strip
rinsing
rinse liquid
roller pair
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
EP20812340.6A
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German (de)
English (en)
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EP4069886A1 (fr
Inventor
Jacob Miedema
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.)
Tata Steel Ijmuiden BV
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Tata Steel Ijmuiden BV
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Publication date
Application filed by Tata Steel Ijmuiden BV filed Critical Tata Steel Ijmuiden BV
Priority to RS20240374A priority Critical patent/RS65350B1/sr
Publication of EP4069886A1 publication Critical patent/EP4069886A1/fr
Application granted granted Critical
Publication of EP4069886B1 publication Critical patent/EP4069886B1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
    • C23G3/029—Associated apparatus, e.g. for pretreating or after-treating for removing the pickling fluid from the objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/022—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/041—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
    • B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B21C43/04—Devices for de-scaling wire or like flexible work
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying

Definitions

  • This invention relates to a rinsing apparatus for use in a metal strip processing line and to a method of using said rinsing apparatus.
  • Conventional metal strip processing lines such as a plating line, a pickling line or a cleaning line, in many cases also include a rinsing step.
  • This rinsing step usually requires a complicated set-up involving tanks, pumps, sprayers, etc. and the associated flow and level controls.
  • the pickling of steel is a process for removing scale from the surface of the steel that is present after various forming operations. Continuous sheets of steel are typically carried through several acid baths by immersing the metal strip completely in the baths for enough time to remove the scale. It is necessary to remove the acid residue from the steel after the pickling step to prevent corrosion, staining or spotting of the surface.
  • Pickling plants for treating a continuous steel metal strip usually include a metal strip rinsing facility downstream of the acid pickling stage in order to remove any residual pickling acid still adhering to the surface of the metal strip as the metal strip exits the pickling section.
  • This rinsing process can be implemented by spraying the rinsing liquid directly onto the metal strip.
  • the metal strip can be rinsed by pulling the metal strip through a bath of the rinsing liquid.
  • the metal strip surface suffers serious discoloration due to oxidation if the air and rinsing water act on the metal strip simultaneously during prolonged stoppages of the metal strip movement through the rinse station.
  • This invention relates generally to metal strip processing lines of the kind utilised in steel-making plants and has to do particularly with processing lines in which the steel metal strip is at some point passed through a liquid in a process tank. Upon emergence from the process tank, the steel metal strip retains on its surface a layer of the liquid. This liquid layer usually must be removed from the strip.
  • metal strip processing lines employ a wringer roll arrangement in which the metal strip is passed between the nip of one or more pairs of freely rotating rubber rolls.
  • a state-of-the-art rinsing apparatus in a continuous metal strip processing line as depicted in Figure 1 requires considerable amounts of space in terms of line length and space for the intermediate storage of rinse liquid and waste-water treatment.
  • the equipment is extensive, and the system is also quite inflexible.
  • the amount of waste water produced is large.
  • Examples of rinsing apparatus in a continuous metal stripe processing line are also disclosed in GB 433289 A , KR 20040037348 A and WO 2007/116775 A1 .
  • Another object of the invention is to provide a process and apparatus for rinsing a metal strip with a rinse liquid using equipment that is economical and easy to assemble.
  • One or more of the objects is reached with the device according to claim 1 and the method according to claim 11.
  • the metal strip leaves the process tank and is directed upwardly into the rinsing apparatus in a vertical direction.
  • the rinsing apparatus comprises a plurality (N) of roller pairs, where N is at least 3.
  • N is at least 3.
  • the lowest roller pair is identified as roller pair number 1 (indicated with "a" in figure 2 ) and the upper roller pair is roller pair number N.
  • roller pairs create a substantially equidistant slit through which the metal strip is led upwardly.
  • the axes of the rollers of each roller pair are horizontal and parallel. Small deviations may be tolerable but if the deviations become too large then the flow of water and metal becomes disturbed leading to uneven rinsing or pinching of the strip.
  • Fresh rinse liquid is introduced in the upper part of the rinsing apparatus to benefit from its downwards cascading in the most efficient and effective way.
  • the uppermost roller pair or roller pairs may act as drying rolls, and in that case the rinse liquid is introduced below the first pair of drying rolls.
  • Rinse liquid may be introduced at one location, or at more than one location further down the rinsing apparatus.
  • the means to provide the rinse liquid towards the metal strip are located such to introduce the rinse liquid in the gap between two subsequent rolls.
  • the rinse liquid must be introduced in such a way that an even rinsing over the width of the metal strip is obtained, e.g. by using a plurality of spray nozzles over the width of the device.
  • the means to provide the rinse liquid are installed on both sides of the metal strip and preferably symmetrically. If so desired, additional means to provide rinse liquid to the metal strip may be installed in gaps between two subsequent rolls upstream of the metal strip (i.e. further down in the rinsing apparatus).
  • roller pairs can be driven by external means such as a motor, or by the strip.
  • the former requires careful control of the rotation to prevent scratching or pinching of the metal strip.
  • the latter means that the strip is pulled through the rinsing apparatus which may, particularly for very thin and/or soft metal strip, require careful handling.
  • the rotation of the roller pairs is such that at the point of contact with the metal strip the roll surface moves upwardly, substantially with the same speed circumferential speed as the speed of the strip moving upwardly, thus assisting the upward travel of the metal strip and avoiding scratches or other damage to the strip surface, and the roll surface moves downwardly at the point opposite of the point of contact with the metal strip, thus assisting the downward travel of the rinse liquid.
  • the rinse liquid is preferably water, or water-based. Additives may be provided to the rinse liquid if so desired.
  • the main purposes of the encapsulating shield are to control the flow of the rinse liquid in the rinsing apparatus and to prevent spillage of (used and potentially polluted) rinsing liquid because the shield catches any liquid flung away from the rollers and leads it back to the metal strip surface.
  • the encapsulating shield follows the contours of the roller pairs, and more preferably the distance between the encapsulating shield and the surface of the rollers is substantially constant. This allows the flow of rinsing liquid to be laminar through the device, rather than turbulent. However, if so desired, the encapsulating shield can also be designed such that the flow is turbulent, rather than laminar.
  • the flinging away of the rinse liquid from the roller pairs has several technical drawbacks. Firstly, the rinse liquid is no longer available for rinsing the metal strip further down the rinsing apparatus if the rinse liquid is flung out of the rinsing apparatus. Secondly, the effectivity of the rinsing process becomes lower and less controlled, for example because the amount of rinse liquid being flung out may not be constant, and thirdly, the used rinse liquid may scatter contaminants around if the unrinsed metal strip has picked up these contaminants from the process tanks. These contaminants may be harmful, and thus scattering these around must be prevented.
  • the amount of ground space required in the line is reduced because the line goes up during rinsing. Only one rinse liquid collector may be needed, and the amount of rinse liquid is reduced due to a more efficient use of the rinse liquid because of the counterflow of rinse liquid and metal strip to be rinsed.
  • the equipment is also relatively simple, and easier to control.
  • the used rinse water is discarded into the process tank and dilutes the contents of the process tank. This may partly or completely compensate any evaporation that takes place from the contents in the process tank. Any excess rinse water can be collected and led away.
  • the rinse liquid is transported downwardly by the combined effect of gravity and by the rotating rolls in the direction of the rotation of the rolls. This means that the rinse liquid is carried downwardly by the rotating rolls during their rotation and transported to the metal strip. This outward movement of the rinse liquid and the transport to the metal strip is depicted in figure 2 by the arrows in the rinse liquid. It is unlikely that significant amounts of rinsing liquids seep downwardly through the slit between the roller pairs when a metal strip (with its adhering liquid layer) to be rinsed is travelling upwardly through the slit.
  • the rolls pairs do allow a small amount of liquid adhering to the metal strip to pass with metal strip upwardly .
  • This adhering liquid is diluted each time by the rinse liquid in the gaps between subsequent rollers, so the result is that the liquid that is adhering to the metal strip becomes more diluted each time a pair of rollers is passed.
  • the last roll pair is a drying roll, then most, if not all, of the remaining liquid is removed from the metal strip just before exiting the rinsing apparatus.
  • a drying step after the rinsing apparatus may be provided to completely dry the metal strip.
  • the rinse liquid is sprayed towards the strip between two pairs of rollers.
  • the term “towards” includes (i) the spraying directly onto the metal strip or (ii) the spraying into the gap between the rollers but not directly onto the metal strip or (iii) both.
  • the spraying of the rinse liquid directly onto the strip after which the rinse liquid joins the water cushion is the most effective version because then the strip is directly rinsed with the cleanest rinse liquid.
  • the rinse liquid forms a rinse liquid cushion in the gap (see e.g. figure 2 ) which dilutes the adhering liquid film on the metal strip. This may be between the top roller pair (N) and the one just below that (N-1) or lower down in the apparatus.
  • roller pair(s) above the point where the rinse liquid is sprayed onto the strip may serve as drying rollers.
  • the minimum amount of roller pairs is 3, but it is preferable to have at least 4 or 5 roller pairs.
  • a suitable maximum number of roller pairs is 10, preferably N is at most 9, more preferably at most 8. It should be noted that (pairs of) guiding rolls or pairs of turning rolls, which have no rinsing or drying contribution according to the invention are not counted in this invention. Turning rolls are not shown in the figures (see e.g. figure 2 where the strip changes direction from horizontal in the process tank to vertical in the rinsing apparatus.
  • the fresh rinse liquid rinses the strip at the point where the rinse liquid is sprayed onto the strip and is subsequently transported down by the joint effect of gravity and the rotation of the roller pair below the point of insertion.
  • the roller pair picks up the liquid and transports it to the gap between that roller pair and the roller pair below it, thereby again allowing the rinse liquid to contact the metal strip and clean it. Only minute amounts of rinse liquid cling to the strip and are transported upwardly. Most of the rinse liquid is transported again by the roller pair further down the rinsing apparatus, thereby rinsing the metal strip in counterflow.
  • the rinse liquid travels downwardly, and the strip travels upwardly.
  • the rinse liquid that is provided to the metal strip tends to adhere to the rotating rollers. However, above a certain threshold rotational speed the rinse liquid is no longer able to cling to the roller's surface and will be flung away from the roller in all directions.
  • the centrifugal force that is responsible for that can be calculated, so that the maximum rotational speed of the surface of the roller can be calculated before the rinse liquid is flung away from the roller.
  • the rotational speed is dependent on the roll radius and the frequency of rotation.
  • the speed of rotation of the rollers can be limited. However, this requires a low line speed.
  • an encapsulating shield must be used that prevents the rinse liquid to be flung away from the rolls and contains the rinse liquid near the rolls. The rolls are then able to transport the rinse liquid from the upper parts of the rinsing apparatus where the fresh rinse liquid is introduced to subsequently lower parts of the rinsing apparatus wherein the rinse liquid is brought into contact with the metal strip to be rinsed each time until the lowest pair of rollers is reached, after which the rinse liquid is collected and led away for waste rinse liquid treatment and possible re-use after said treatment, or proper disposal of the waste rinse liquid.
  • Drying may also be performed by subjecting the metal strip to a drying treatment, e.g. by convection drying or blowing (hot) air onto the surface.
  • a drying treatment e.g. by convection drying or blowing (hot) air onto the surface.
  • the two relevant forces are the centrifugal force and the surface tension of the rinse liquid. Because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension (72.8 millinewtons per meter or 0.0728 kg/s 2 at 20 °C) than most other liquids.
  • Wringer rolls are known to pass 5 ml/m 2 (or 5.10 -6 m 3 /m 2 ) between the wringer roll and the strip. This means that for a 1 meter wide strip an amount of v.w.5.10 -6 m 3 of water is let through between the roller and the strip.
  • the thickness of the water layer clinging to the roller during its rotation is calculated by equalling the value of ⁇ d r v 2
  • the rinse liquid is flung from the rollers because the liquid can no longer have a rinsing effect after that, and the fresh or used rinse liquid also flies everywhere uncontrollably.
  • the inventor found that it the application of an encapsulating shielding closely following the contours of the roller pairs enables to maximally benefit from the rinsing effect and the cascading-down effect of the subsequent roller pairs.
  • the rinse liquid that would otherwise be flung from the rollers is encapsulated by the shielding and will be led back to the metal strip to rinse it upstream as seen from the travelling direction of the metal strip.
  • roller pairs may be provided with means to open and close the slit between the roller pair.
  • the means to open and close the slit between the roller pair may enable pressing the pairs of rolls together to exert pressure on the passing metal strip.
  • the means may be provided on each roller of the roller pair, or the means to open and close the slit between the rolled pairs act upon one of the two rolls of a roller pair, and wherein the other roll of said rolled pair is fixed.
  • the invention is also embodied in a method of rinsing a metal strip using the apparatus according to the invention.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (15)

  1. Appareil de rinçage (1) destiné à rincer une bande métallique (2) dans une ligne de traitement de bande métallique continue (3), comprenant N paires de rouleaux rotatifs (a, b, ...), N étant supérieur ou égal à 3,
    - lesdits axes des rouleaux dans les paires de rouleaux étant horizontaux et parallèles pour produire une fente pour recevoir et guider la bande métallique à travers le dispositif, et lesdites paires de rouleaux étant positionnées les unes au-dessus des autres verticalement, et
    - des moyens pour projeter du liquide de rinçage frais (4) vers un ou les deux côtés de la bande métallique étant prévus entre une ou plusieurs des paires de rouleaux,
    - et un écran d'encapsulation (5) étant prévu entourant au moins une partie des rouleaux sur le côté tourné à l'opposé de la fente sur un ou les deux côtés de l'appareil couvrant une ou plusieurs paires de rouleaux pour contenir le liquide de rinçage et pour empêcher le liquide de rinçage d'être projeté de la paire de rouleaux rotatifs au loin de l'appareil de rinçage, et
    - lors de l'utilisation, ladite bande métallique à rincer étant guidée vers le haut à travers chaque fente suivante entre chaque paire de rouleaux, et ledit sens de rotation des rouleaux des paires de rouleaux coïncidant avec la direction de défilement de la bande métallique, et ladite bande métallique étant rincée par le liquide de rinçage avant de sortir de l'appareil de rinçage, et ledit liquide de rinçage tombant en cascade dans l'appareil de rinçage pour rincer la bande métallique se déplaçant vers le haut à contre-courant, et,
    - ladite chute en cascade du liquide de rinçage étant réalisée par transport du liquide de rinçage par les rouleaux rotatifs dans le sens de rotation des rouleaux rotatifs.
  2. Appareil de rinçage selon la revendication 1, l'une ou plusieurs des paires de rouleaux hautes agissant également en tant que rouleaux de séchage, par exemple des rouleaux essoreurs.
  3. Appareil de rinçage selon la revendication 1 ou 2, des moyens pour introduire le liquide de rinçage étant prévus entre la Nième et la (N-1)ième paire de rouleaux, ou entre la (N-1)ième et la (N-2)ième paire de rouleaux, ou entre la Nième et la (N-1)ième paire de rouleaux et la (N-2)ième paire de rouleaux.
  4. Appareil de rinçage selon l'une quelconque des revendications 1 à 3, une, plusieurs ou toutes les paires de rouleaux étant dotées de moyens pour ouvrir et fermer la fente entre la paire de rouleaux, de préférence lesdits moyens pour ouvrir et fermer la fente entre la paire de rouleaux permettant également de presser les paires de rouleaux ensemble pour exercer une pression sur la bande métallique passante.
  5. Appareil de rinçage selon la revendication 4, lesdits moyens pour ouvrir et fermer la fente entre les paires de rouleaux agissant sur l'un des deux rouleaux d'une paire de rouleaux, et ledit autre rouleau de ladite paire de rouleaux étant fixe.
  6. Appareil de rinçage selon l'une quelconque des revendications 1 à 5, une, plusieurs ou toutes les paires de rouleaux étant dotées de moyens pour faire tourner activement les rouleaux et entraîner ou aider à entraîner la bande métallique à travers le dispositif de rinçage.
  7. Appareil selon l'une quelconque des revendications 1 à 6, ledit un liquide de rinçage étant appliqué directement sur une ou les deux faces de la bande métallique.
  8. Appareil de rinçage selon l'une quelconque des revendications 1 à 7, lesdits moyens de séchage étant fournis après la Nième paire de rouleaux.
  9. Appareil de rinçage selon l'une quelconque des revendications 1 à 8, N étant supérieur ou égal à 4.
  10. Appareil de rinçage selon l'une quelconque des revendications 1 à 9, N étant inférieur ou égal à 10.
  11. Procédé de rinçage d'une bande métallique à l'aide de l'appareil de rinçage selon l'une quelconque des revendications 1 à 10 comprenant les étapes suivantes :
    - traitement de la bande métallique dans une ligne de traitement de bande métallique continue comprenant l'appareil de rinçage ;
    - guidage de la bande métallique dans l'appareil de rinçage et son orientation vers le haut entre les paires de rouleaux ;
    - fourniture d'un liquide de rinçage frais entre deux ou plusieurs des paires de rouleaux hautes vers la bande métallique pour rincer la bande métallique ;
    - permission au liquide de rinçage de tomber en cascade sur les paires de rouleaux suivantes pour rincer la bande métallique à contre-courant de la direction de déplacement de la bande métallique ;
    - guidage de la bande métallique au loin de l'appareil après le passage de la Nième paire de rouleaux.
  12. Procédé selon la revendication 11, ladite bande métallique étant séchée en faisant passer la bande métallique rincée à travers la paire ou les paires de rouleaux les plus hautes, au moins l'une de
    la paire ou des paires de rouleaux les plus hautes étant une paire de rouleaux de séchage, telle qu'une paire de rouleaux essoreurs.
  13. Procédé selon la revendication 11 ou 12, ladite bande métallique étant séchée en faisant passer la bande métallique rincée à travers des moyens de séchage, tels qu'un dispositif de séchage par convection ou un dispositif de soufflage.
  14. Procédé selon l'une quelconque des revendications 11 à 13, ladite vitesse de ligne de la ligne de traitement de bande métallique continue étant supérieure ou égale à 50 m/min, de préférence supérieure ou égale à 100 m/min, mieux encore supérieure ou égale à 200 m/min et même mieux encore supérieure ou égale à 300 m/min.
  15. Procédé selon l'une quelconque des revendications 11 à 14, ladite ligne de traitement de bande métallique continue étant une ligne de décapage, une ligne de placage ou une ligne de nettoyage.
EP20812340.6A 2019-12-03 2020-11-30 Appareil de rinçage et son utilisation Active EP4069886B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RS20240374A RS65350B1 (sr) 2019-12-03 2020-11-30 Uređaj za ispiranje i njegova primena

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19213215 2019-12-03
PCT/EP2020/083825 WO2021110567A1 (fr) 2019-12-03 2020-11-30 Appareil de rinçage et son utilisation

Publications (2)

Publication Number Publication Date
EP4069886A1 EP4069886A1 (fr) 2022-10-12
EP4069886B1 true EP4069886B1 (fr) 2024-01-03

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EP (1) EP4069886B1 (fr)
ES (1) ES2974987T3 (fr)
PL (1) PL4069886T3 (fr)
RS (1) RS65350B1 (fr)
WO (1) WO2021110567A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE601656C (de) * 1932-11-11 1934-08-21 Claus Busse Dipl Ing Waschmaschine fuer gebeiztes band- oder drahtfoermiges Gut
KR20040037348A (ko) * 2002-10-28 2004-05-07 주식회사 포스코 스트립 소둔라인의 수직형 탈지설비
JP4841996B2 (ja) * 2006-03-31 2011-12-21 富士フイルム株式会社 洗浄装置、めっき被膜付きフィルムの製造装置、洗浄方法及びめっき被膜付きフィルムの製造方法

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RS65350B1 (sr) 2024-04-30
PL4069886T3 (pl) 2024-05-13
EP4069886A1 (fr) 2022-10-12
WO2021110567A1 (fr) 2021-06-10
ES2974987T3 (es) 2024-07-02

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