[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP3122480A1 - Device for the contact-free cleaning of rollers, and method therefor - Google Patents

Device for the contact-free cleaning of rollers, and method therefor

Info

Publication number
EP3122480A1
EP3122480A1 EP15711747.4A EP15711747A EP3122480A1 EP 3122480 A1 EP3122480 A1 EP 3122480A1 EP 15711747 A EP15711747 A EP 15711747A EP 3122480 A1 EP3122480 A1 EP 3122480A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
roller
hood
suction channel
shaped material
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.)
Granted
Application number
EP15711747.4A
Other languages
German (de)
French (fr)
Other versions
EP3122480B1 (en
EP3122480B2 (en
Inventor
Marc Blumenau
Sahin CENGIZ
Erhard KLEMM
Oliver Moll
Roger NÜSSEN
Christian Schmidt
Michael Ullmann
Udo ZOCHER
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.)
ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
Original Assignee
ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
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=52727134&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3122480(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ThyssenKrupp Steel Europe AG, ThyssenKrupp AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP3122480A1 publication Critical patent/EP3122480A1/en
Publication of EP3122480B1 publication Critical patent/EP3122480B1/en
Application granted granted Critical
Publication of EP3122480B2 publication Critical patent/EP3122480B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B08B5/023—Cleaning travelling work
    • B08B5/026—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0229—Suction chambers for aspirating the sprayed liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling

Definitions

  • a common method is the removal by spraying a liquid, such as water, emulsion, or the like. In this case, it is called wet rolling or -dressieren.
  • a liquid such as water, emulsion, or the like.
  • wet rolling or -dressieren As an alternative, especially for specific product and quality requirements, e.g. In the case of products that are particularly susceptible to corrosion, however, they can also be rolled or dressed without liquid. In this case one speaks of drying rollers or -dressieren.
  • roller cleaning For dry rolling or -dressing, mechanical, contacting methods are used for roller cleaning in the prior art, such as brushes and doctor blades, the adhering particles or
  • the invention has for its object an apparatus and a method for cleaning of rollers, in particular of support and / or work rolls of a strip processing plant, in particular of rolling or tempering, to provide. Especially for dry rollers or -dressing.
  • the disadvantages of the known from the prior art solutions high wear, high maintenance, complex designs, ...) to avoid.
  • a skin pass mill typically consists of a pair of work rolls which are in direct contact with the strip surface and a pair of backup rolls (a so-called quarto backbone) or a system of multiple back-up rolls (eg six-high skin pass mill or other systems) which stabilize the work rolls and drive.
  • baubles or “sediment dust”
  • This layer of dirt can flake off or be transferred to the work rolls, resulting in impressions on the strip surface.
  • the device according to the invention or the method according to the invention serves for the continuous cleaning of rolls by a combined suction-blowing device. By a permanent blowing of the roll surface, the abrasion occurring during rolling is continuously removed, thus preventing the formation of a dirt layer on the roll surface. Combined with integrated extraction, the dust can be removed directly.
  • the hood and the effective range of the injected gas or fluid flow covers the entire working width of the roller to be cleaned, which corresponds at least to the width of the metal strip.
  • the blast air is therefore ideally irradiated via a slot nozzle or a nozzle bar of a plurality of individual nozzles, which extend in the width direction of the roller at least over the width of the strip material.
  • a gas air or compressed air is ideally used from an economic point of view.
  • the incoming air flow must be dimensioned so that it comes to a detachment of adhering to the roll surface particles.
  • the nozzle shape is of particular importance.
  • the nozzle is designed in one embodiment in the form of a venturi, which can increase the amount or speed of the gas stream.
  • the geometry of the nozzle is designed such that by using the Coanda effect, the gas stream is directed in a concentrated manner onto the surface.
  • the flow in the hood must be designed in such a way that no so-called dead zones occur within the hood, which favor deposition of the skin-pass dust on the wall of the suction hood.
  • dead zones occur within the hood, which favor deposition of the skin-pass dust on the wall of the suction hood.
  • the suction of the hood must be adjusted so that the sedative dust can be completely removed from the hood.
  • Supply and exhaust air must be adjusted so that no pressure in the hood is created, which hurls particles from the gap between the hood and roll surface.
  • At least one nozzle is provided, which directs a fluid flow to the surface of the roller, and at least one suction channel is provided.
  • the at least one nozzle and the at least one suction channel are arranged in a common hood, wherein the hood covers a part of the circumference of the roller.
  • the suction power i. the volume flow of the at least one suction channel arranged in the hood is greater than the fluid flow introduced by means of the at least one nozzle arranged in the hood. In a preferred embodiment, therefore, the volume flow of the exhaust air is adjusted by 5% to 50% greater than the injected gas flow.
  • the at least one nozzle covers at least one of the width of the strip-shaped material corresponding width of the roller.
  • the at least one nozzle is directed at an angle of +/- 45 °, preferably +/- 10 °, in particular 0 °, with respect to the vertical on the surface of the roller and at a distance of less than 50mm, preferably 1 mm to 30mm, arranged away from the surface of the roller.
  • the at least one nozzle is designed as a slot nozzle or as a nozzle beam with a plurality of individual nozzles arranged next to one another, wherein the individual nozzles themselves can be point-shaped or slot-shaped.
  • the maximum nozzle spacing depends on the nozzle opening and shape and the resulting flow velocity. It is about 50mm for a nozzle with a 4mm opening. A particularly good cleaning effect is at
  • Achieved nozzle distances which are about 1-30 mm from the roll surface.
  • means are provided in the at least one nozzle or its feed line in order to introduce at least temporarily abrasive particles into the gas stream. For example, from the field of beam processing known particles based on corundum.
  • roller diameter the cleaning device according to the invention is adjustably mounted on the rolling stand.
  • At least one further suction channel is provided, which preferably extends over a width which corresponds to the width of the band-shaped material and is arranged outside the hood in the region of the contact point, preferably in the exit direction, with an adjacent roll or the band-shaped material.
  • Fig. 1 shows a cleaning device according to the invention seen in the direction of the roll width.
  • Fig. 2 shows a further cleaning device according to the invention seen from the direction of the roll surface.
  • Fig. 3 shows a further cleaning device according to the invention seen from the direction of the roll surface.
  • Fig. 4 shows a rolling mill with cleaning devices according to the invention. reference numeral
  • a roller (1) with on the roller surface (2) adhering dirt cover (3) is shown.
  • a hood (4) according to the invention is moved up, whereby this does not touch the roll surfaces (2).
  • a gas stream (6) at a speed of more than 20m / s, preferably more than 40m / s, on the roll surface (2) with the dirt cover (3) is inflated. From an economic point of view, speeds over 500m / s no longer make sense. Furthermore, for reasons of noise protection, speeds below 300 m / s are preferred.
  • the dirt deposit (3) from the roll surface (2) and the resulting particles (7) are sucked through at least one suction channel (8) with the exhaust air (9).
  • the volume flow of the exhaust air (9) is dimensioned such that it is greater than the volume of the gas stream (6) supplied via the at least one nozzle (5).
  • Fig. 2 shows a hood (4) seen from the direction of the roll surface, wherein the at least one nozzle (5) is designed as a slot nozzle (5.1).
  • slot nozzles (5.1) or flat-slot nozzles are known as air knives or Airknife.
  • the slot nozzle (5.1) extends across the width of the hood (4) and is provided approximately centrally in one embodiment.
  • two suction channels (8) are provided on the hood (4), the first suction channel (8.1), seen from the direction of rotation of the roller, located in front of the slot nozzle (5.1) and extending over a large part of the width of the hood (FIG. 4).
  • a second suction channel (8.2) is provided as seen in the direction of rotation of the roller trailing side of the slot nozzle (5.1).
  • a second suction channel (8.2) is provided as seen in the direction of rotation of the roller trailing side of the slot nozzle (5.1).
  • the symmetrical structure shown in Fig. 2 is not mandatory, but offers the advantage that the installation can be carried out regardless of the direction of rotation.
  • only one of the two suction channels (8.1 or 8.2) is provided. This allows a smaller size of the hood (4) realize what the installation and
  • the suction channels (8) may also consist of a plurality of individual juxtaposed suction channels instead of the width shown.
  • the embodiment shown in Fig. 3 is also viewed from the direction of the roll surface.
  • the at least one nozzle (5) is designed in the form of a nozzle bar (5.2), which consists in the width direction of a plurality of juxtaposed individual nozzles.
  • On the upstream side in the direction of rotation of the nozzle bar (5.2) further additional individual nozzles (5.3) are provided, through which the dirt cover (3) is broken even before the nozzle bar (5.2), whereby the cleaning effect can be further improved.
  • several suction channels (8.3) are provided before and between the additional individual nozzles (5.3).
  • a second suction channel (8.2) is provided.
  • the second suction channel (8.2) does not have to be designed as a single channel extending approximately over the width of the hood (4) as shown, but may also be divided into a plurality of individual suction channels (8.3).
  • Fig. 4 shows schematically a rolling stand with two work rolls (1.1) between which passes through there to be processed strip material (10).
  • the work rolls (1.1) are supported by a pair of back-up rolls (1.2).
  • the hoods (4) can be provided both on the work rolls (1.1) and on the support rolls (1 .2).
  • the arrangement of the hoods (4) and thus the cleaning of the work rolls (1.1) preferably on the inlet side of the belt (10).
  • further suction channels (1 1) are provided for the extraction of free particles.
  • the further suction channel (1 1) preferably has a width corresponding to the width of the band-shaped material, and is arranged in the region of the contact point of the work roll (1.1) with the band (10) in the exit direction.
  • Further suction channels (1 1) can additionally or alternatively be arranged in the vicinity of the contact points between working (1.1) and support roller (1.2) or between support rollers (1.2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention relates to a device for cleaning a roller (1) of a system for machining a strip-type material, comprising at least one jet nozzle (5), which directs a fluid stream onto the surface (2) of the roller (1), and at least one suction channel (8). The at least one jet nozzle (5) and the at least one suction channel (8) are arranged in a hood (4), and the hood (4) covers part of the circumference of the roller (1). The at least one jet nozzle (5) is arranged at an angle of +/- 45° relative to the vertical on the surface (2) of the roller (1) and at a distance of less than 50 mm from the surface (2) of the roller (1).

Description

Vorrichtung zur berührungslosen Walzenreinigung und Verfahren hierfür  Non-contact roller cleaning device and method therefor
Beim Walzen und Dressieren von Metallen, insbesondere von Metallbändern, beispielsweise aus Stahl, Aluminium, Magnesium oder weiteren Nichteisenmetallen, entsteht unvermeidlich Abrieb, sowohl von den Walzen selbst, als auch von der Bandoberfläche. Damit dieser Abrieb keine Qualitätsmängel auf der Bandoberfläche z.B. durch Verschmutzung oder Abdrücke erzeugt, muss dieser entfernt werden. When rolling and tempering metals, in particular metal strips, for example steel, aluminum, magnesium or other non-ferrous metals, abrasion inevitably arises, both from the rolls themselves and from the strip surface. In order that this abrasion does not cause quality defects on the strip surface, e.g. caused by contamination or marks, this must be removed.
Ein übliches Verfahren ist die Entfernung durch Aufsprühen einer Flüssigkeit, wie Wasser, Emulsion, oder dgl. In diesem Fall spricht man von Nasswalzen bzw. -dressieren. Als Alternative insbesondere für spezielle Produkt- und Qualitätsanforderungen, z.B. bei besonders korrosionsgefährdeten Produkten, kann jedoch auch ohne Flüssigkeit gewalzt bzw. dressiert werden. In diesem Fall spricht man von Trockenwalzen bzw. -dressieren. A common method is the removal by spraying a liquid, such as water, emulsion, or the like. In this case, it is called wet rolling or -dressieren. As an alternative, especially for specific product and quality requirements, e.g. In the case of products that are particularly susceptible to corrosion, however, they can also be rolled or dressed without liquid. In this case one speaks of drying rollers or -dressieren.
Für Trockenwalzen bzw. -dressieren werden zur Walzenreinigung im Stand der Technik mechanische, berührende Methoden eingesetzt, wie Bürsten und Schaberklingen, die anhaftende Partikel bzw. For dry rolling or -dressing, mechanical, contacting methods are used for roller cleaning in the prior art, such as brushes and doctor blades, the adhering particles or
festgewalzten Schmutzbelag von der Walzenoberfläche entfernen. Konventionelle Reinigungssysteme wie Bürsten basieren auf einem berührenden Wirkprinzip. Aus Verschleißgründen müssen diese oft getauscht und gereinigt werden und führen zu einem abrasiven Verschleiß der Walzenoberfläche. Somit ist eine Walzenreinigung durch berührende Systeme störungs- und wartungsintensiv. Die im Stand der Technik enthaltenen Lösungen sind zudem schwierig in bereits bestehende Walz- bzw. Dressiergerüste nachrüstbar und verschleißintensiv im täglichen Gebrauch. Somit sind diese Systeme neben den Investitionskosten auch mit relativen hohen Betriebskosten verbunden. remove hard-rolled debris from the roller surface. Conventional cleaning systems such as brushes are based on a touching principle. For wear reasons, these often have to be exchanged and cleaned and lead to abrasive wear of the roll surface. Thus, a roller cleaning by contacting systems is disruptive and maintenance-intensive. The solutions contained in the prior art are also difficult to retrofit in existing rolling or tempering scaffolding and wear-intensive in daily use. Thus, in addition to the investment costs, these systems are also associated with relatively high operating costs.
Der Erfindung liegt die Aufgabe zugrunde eine Vorrichtung sowie ein Verfahren zum Reinigen von Walzen, insbesondere von Stütz- und/oder Arbeitswalzen einer Bandbearbeitungsanlage, insbesondere von Walz- oder Dressiergerüsten, bereitzustellen. Speziell für Trockenwalzen bzw. -dressieren. Hierbei gilt es insbesondere die Nachteile der aus dem Stand der Technik bekannten Lösungen (hoher Verschleiß, wartungsintensiv, komplexe Bauformen, ...) zu vermeiden. The invention has for its object an apparatus and a method for cleaning of rollers, in particular of support and / or work rolls of a strip processing plant, in particular of rolling or tempering, to provide. Especially for dry rollers or -dressing. In this case, in particular, the disadvantages of the known from the prior art solutions (high wear, high maintenance, complex designs, ...) to avoid.
Ein Dressier- oder Walzgerüst besteht typischerweise aus einem Paar Arbeitswalzen, welche mit der Bandoberfläche in direktem Kontakt stehen und einem Stützwalzenpaar (sogenanntes Quartogerüst) oder einem System von mehreren Stützwalzen (z.B. Six-High-Dressiergerüst oder sonstige Systeme), welche die Arbeitswalzen stabilisieren und antreiben. A skin pass mill typically consists of a pair of work rolls which are in direct contact with the strip surface and a pair of backup rolls (a so-called quarto backbone) or a system of multiple back-up rolls (eg six-high skin pass mill or other systems) which stabilize the work rolls and drive.
Während des Trockenwalzens bzw. -dressierens kommt es zu einem massiven Staubniederschlag („Flitter" oder„Dressierstaub"), insbesondere aus Abrieb vom Bandmaterial und den Arbeitswalzen, welcher das Aufwachsen einer Schmutzschicht an der Walzenoberfläche vor allem an den Stützwalzen bewirkt. Diese Schmutzschicht kann abplatzen oder auf die Arbeitswalzen übertragen werden, wodurch es zu Eindrücken auf der Bandoberfläche kommt. Die erfindungsgemäße Vorrichtung bzw. das erfindungsgemäße Verfahren dient zur kontinuierlichen Reinigung von Walzen durch eine kombinierte Saug-Blas-Vorrichtung. Durch ein permanentes Anblasen der Walzenoberfläche wird der während des Walzens entstehende Abrieb kontinuierlich abgetragen und so die Bildung einer Schmutzschicht auf der Walzenoberfläche unterbunden. Durch die Kombination mit einer integrierten Absaugung kann der Walzstaub unmittelbar abgeführt werden. Eine During dry rolling, a massive amount of dust ("baubles" or "sediment dust") is produced, in particular from abrasion from the strip material and the work rolls, which causes the growth of a dirt layer on the roll surface, especially at the back-up rolls. This layer of dirt can flake off or be transferred to the work rolls, resulting in impressions on the strip surface. The device according to the invention or the method according to the invention serves for the continuous cleaning of rolls by a combined suction-blowing device. By a permanent blowing of the roll surface, the abrasion occurring during rolling is continuously removed, thus preventing the formation of a dirt layer on the roll surface. Combined with integrated extraction, the dust can be removed directly. A
Kompletteinhausung des Walz- bzw. Dressiergerüstes entfällt hierdurch. Complete housing of the rolling or skin pass mill is thereby eliminated.
Sowohl das Anblasen der Walzenoberfläche als auch die Absaugung des Staubes („Flitters") finden innerhalb einer gemeinsamen Einhausung (Haube) statt, die nah an die zu reinigende Oberfläche positioniert wird, diese allerdings nicht berührt. Both the rolling of the roller surface as well as the dust extraction ("bumps") take place within a common housing (hood), which is positioned close to the surface to be cleaned, but this does not touch.
Die Haube sowie der Wirkbereich des eingeblasenen Gas- bzw. Fluidstroms (Blasluft) deckt die komplette Arbeitsbreite der zu reinigenden Walze ab, welche mindestens der Breite des Metallbandes entspricht. Die Blasluft wird daher idealerweise über eine Schlitzdüse oder einen Düsenbalken aus mehreren Einzeldüsen aufgestrahlt, welche sich in Breitenrichtung der Walze mindestens über die Breite des Bandmaterials erstrecken. Als Gas wird aus ökonomischer Sicht idealerweise Luft bzw. Druckluft verwendet. The hood and the effective range of the injected gas or fluid flow (blowing air) covers the entire working width of the roller to be cleaned, which corresponds at least to the width of the metal strip. The blast air is therefore ideally irradiated via a slot nozzle or a nozzle bar of a plurality of individual nozzles, which extend in the width direction of the roller at least over the width of the strip material. As a gas, air or compressed air is ideally used from an economic point of view.
Für einen optimalen Betrieb ist eine genauere Betrachtung der ein- und auslaufenden Strömungen ausschlaggebend. So muss der eingehende Luftstrom so dimensioniert werden, dass es zu einem Ablösen der an der Walzenoberfläche anhaftenden Partikel kommt. Hierbei kommt auch der Düsenform eine besondere Bedeutung zu. Die Düse ist in einem Ausführungsbeispiel in Form einer Venturidüse ausgeführt, wodurch sich die Menge bzw. Geschwindigkeit des Gasstroms erhöhen lässt. In einem weiteren Ausführungsbeispiel ist die Geometrie der Düse derart ausgebildet, dass durch die Nutzung des Coanda-Effekts der Gasstrom konzentriert auf die Oberfläche gelenkt wird. For optimal operation, a closer look at the incoming and outgoing flows is crucial. Thus, the incoming air flow must be dimensioned so that it comes to a detachment of adhering to the roll surface particles. Here, the nozzle shape is of particular importance. The nozzle is designed in one embodiment in the form of a venturi, which can increase the amount or speed of the gas stream. In a further embodiment, the geometry of the nozzle is designed such that by using the Coanda effect, the gas stream is directed in a concentrated manner onto the surface.
Die Strömung in der Haube muss so gestaltet werden, dass innerhalb der Haube keine sogenannten Todzonen auftreten, die eine Ablagerung des Dressierstaubes an der Wand der Saughaube begünstigen. Allgemein werden durch gerundete Kanten und Übergänge und/oder fließende kontinuierlich Flächen möglichst laminare Strömungsverhältnisse, d.h. weitgehend turbulenzfrei, gewährleistet. Weiterhin muss die Absaugung der Haube so eingestellt werden, dass der Dressierstaub vollständig aus der Haube entfernt werden kann. The flow in the hood must be designed in such a way that no so-called dead zones occur within the hood, which favor deposition of the skin-pass dust on the wall of the suction hood. In general, as a result of rounded edges and transitions and / or continuous flowing surfaces, the most laminar flow conditions, i. largely turbulence-free, guaranteed. Furthermore, the suction of the hood must be adjusted so that the sedative dust can be completely removed from the hood.
Zu- und Abluft müssen dabei so eingestellt werden, dass kein Überdruck in der Haube entsteht, welcher Partikel aus dem Spalt zwischen Haube und Walzenoberfläche schleudert. Supply and exhaust air must be adjusted so that no pressure in the hood is created, which hurls particles from the gap between the hood and roll surface.
Folgend wird eine Ausführungsform der Erfindung zum Reinigen einer Walze einer Anlage zur The following is an embodiment of the invention for cleaning a roller of a plant for
Bearbeitung von bandförmigem Material beschrieben, wobei zumindest eine Düse vorgesehen ist, die einen Fluidstrom auf die Oberfläche der Walze richtet, und zumindest ein Absaugkanal vorgesehen ist. Die zumindest eine Düse und der zumindest eine Absaugkanal sind in einer gemeinsamen Haube angeordnet, wobei die Haube einen Teil des Umfangs der Walze überdeckt. Processing of band-shaped material is described, wherein at least one nozzle is provided, which directs a fluid flow to the surface of the roller, and at least one suction channel is provided. The at least one nozzle and the at least one suction channel are arranged in a common hood, wherein the hood covers a part of the circumference of the roller.
Die Absaugleistung, d.h. der Volumenstrom, des zumindest einen in der Haube angeordneten Absaugkanals ist größer als der mittels der zumindest einen in der Haube angeordneten Düse eingebrachte Fluidstrom. In einer bevorzugten Ausführungsform wird daher der Volumenstrom der Abluft um 5% bis 50% größer als der eingeblasene Gasstrom eingestellt. The suction power, i. the volume flow of the at least one suction channel arranged in the hood is greater than the fluid flow introduced by means of the at least one nozzle arranged in the hood. In a preferred embodiment, therefore, the volume flow of the exhaust air is adjusted by 5% to 50% greater than the injected gas flow.
Die zumindest eine Düse überdeckt zumindest eine der Breite des bandförmigen Materials entsprechenden Breite der Walze. Die zumindest eine Düse ist in einem Winkel von +/- 45°, vorzugsweise +/- 10°, insbesondere 0°, gegenüber der senkrechten auf die Oberfläche der Walze gerichtet und in einem Abstand von weniger als 50mm, vorzugsweise 1 mm bis 30mm, von der Oberfläche der Walze entfernt angeordnet. The at least one nozzle covers at least one of the width of the strip-shaped material corresponding width of the roller. The at least one nozzle is directed at an angle of +/- 45 °, preferably +/- 10 °, in particular 0 °, with respect to the vertical on the surface of the roller and at a distance of less than 50mm, preferably 1 mm to 30mm, arranged away from the surface of the roller.
Um die Breite abzudecken ist die zumindest eine Düse als Schlitzdüse oder als Düsenbalken mit mehreren nebeneinander angeordneten Einzeldüsen ausgebildet, wobei die Einzeldüsen selbst Punktoder schlitzförmig ausgebildet sein können. In order to cover the width, the at least one nozzle is designed as a slot nozzle or as a nozzle beam with a plurality of individual nozzles arranged next to one another, wherein the individual nozzles themselves can be point-shaped or slot-shaped.
Der Fluid- bzw. Gasstrom tritt mit einer Geschwindigkeit von mindestens 20m/s, vorzugsweise mehr als 40m/s, aus der zumindest einen Düse aus. Der maximale Düsenabstand ist abhängig von der Düsenöffnung und -form und der daraus resultierenden Strömungsgeschwindigkeit. Er beträgt für eine Düse mit einer 4mm-Öffnung ca. 50mm. Eine besonders gute Reinigungswirkung wird bei The fluid or gas flow exits the at least one nozzle at a speed of at least 20 m / s, preferably more than 40 m / s. The maximum nozzle spacing depends on the nozzle opening and shape and the resulting flow velocity. It is about 50mm for a nozzle with a 4mm opening. A particularly good cleaning effect is at
Düsenabständen erzielt, die ca. 1-30 mm von der Walzenoberfläche entfernt sind. Achieved nozzle distances, which are about 1-30 mm from the roll surface.
Um die Reinigungswirkung weiter zu steigern, sind in einem Ausführungsbeispiel in die zumindest eine Düse oder deren Zuleitung Mittel vorgesehen, um zumindest zeitweise abrasive Partikel in den Gasstrom einzubringen. Beispielsweise aus dem Bereich der Strahlbearbeitung bekannte Partikel auf Korundbasis. In order to further increase the cleaning effect, in one exemplary embodiment, means are provided in the at least one nozzle or its feed line in order to introduce at least temporarily abrasive particles into the gas stream. For example, from the field of beam processing known particles based on corundum.
Zu Wartungszwecken sowie Walzenwechsel und zur Anpassung an unterschiedliche For maintenance purposes as well as roller change and for adaptation to different
Walzendurchmesser ist die erfindungsgemäße Reinigungsvorrichtung verstellbar am Walzgerüst angebracht. Roller diameter, the cleaning device according to the invention is adjustably mounted on the rolling stand.
In einer weiteren Ausführungsform ist zumindest ein weiterer Absaugkanal vorgesehen, welcher sich vorzugsweise über eine Breite die der Breite des bandförmigen Materials entspricht erstreckt und außerhalb der Haube im Bereich der Kontaktstelle, vorzugsweise in Austrittsrichtung, mit einer benachbarten Walze oder dem bandförmigen Material angeordnet ist. Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus den Zeichnungen und folgend Beschreibung anhand der schematischen Darstellungen. Die Figuren stellen lediglich schematisch beispielhaften Ausführungsformen dar. Gleiche Teile sind mit gleichen Bezugsziffern bezeichnet. In a further embodiment, at least one further suction channel is provided, which preferably extends over a width which corresponds to the width of the band-shaped material and is arranged outside the hood in the region of the contact point, preferably in the exit direction, with an adjacent roll or the band-shaped material. Further details and features of the invention will become apparent from the drawings and the following description with reference to the schematic representations. The figures represent only schematically exemplary embodiments. Like parts are designated by like reference numerals.
Fig. 1 zeigt eine erfindungsgemäße Reinigungsvorrichtung in Richtung der Walzenbreite gesehen. Fig. 1 shows a cleaning device according to the invention seen in the direction of the roll width.
Fig. 2 zeigt eine weitere erfindungsgemäße Reinigungsvorrichtung aus Richtung der Walzenoberfläche gesehen. Fig. 2 shows a further cleaning device according to the invention seen from the direction of the roll surface.
Fig. 3 zeigt eine weitere erfindungsgemäße Reinigungsvorrichtung aus Richtung der Walzenoberfläche gesehen. Fig. 3 shows a further cleaning device according to the invention seen from the direction of the roll surface.
Fig. 4 zeigt ein Walzgerüst mit erfindungsgemäßen Reinigungsvorrichtungen. Bezugszeichen Fig. 4 shows a rolling mill with cleaning devices according to the invention. reference numeral
1 Walze 1 roller
1.1 Arbeitswalze  1.1 Stripper
1.2 Stützwalze  1.2 Back-up roller
2 Walzenoberfläche  2 roll surface
3 Schmutzbelag  3 dirt layer
4 Haube  4 hood
5 Düse  5 nozzle
5.1 Schlitzdüse  5.1 slot nozzle
5.2 Düsenbalken  5.2 nozzle bars
5.3 Einzeldüse  5.3 Single nozzle
6 Gasstrom  6 gas flow
7 Partikel  7 particles
8 Absaugkanal  8 suction channel
8.1 erster Absaugkanal  8.1 first suction channel
8.2 zweiter Absaugkanal  8.2 second suction channel
8.3 einzelner Absaugkanal  8.3 individual suction channel
9 Abluft  9 exhaust air
10 Bandmaterial  10 band material
1 1 Weiterer Absaugkanal  1 1 Further suction channel
In Fig. 1 ist eine Walze (1 ) mit an der Walzenoberfläche (2) anhaftenden Schmutzbelag (3) dargestellt. An die Walzenoberfläche (2) ist eine erfindungsgemäße Haube (4) herangefahren, wobei diese die Walzenoberflächen (2) nicht berührt. In der Haube (4) ist in Breitenrichtung zumindest eine Düse (5) vorgesehen, aus welcher ein Gasstrom (6) mit einer Geschwindigkeit von mehr als 20m/s, vorzugsweise mehr als 40m/s, auf die Walzenoberfläche (2) mit dem Schmutzbelag (3) aufgeblasen wird. Aus wirtschaftlicher Sicht sind Geschwindigkeiten über 500m/s nicht mehr sinnvoll. Des Weiteren sind aus Gründen des Lärmschutzes Geschwindigkeiten unter 300m/s bevorzugt. Durch den Gasstrom (6) löst sich der Schmutzbelag (3) von der Walzenoberfläche (2) und die entstandenen Partikel (7) werden durch zumindest einen Absaugkanal (8) mit der Abluft (9) abgesaugt. Der Volumenstrom der Abluft (9) ist dabei so bemessen, dass er größer als der über die zumindest eine Düse (5) zugeführte Volumen des Gasstroms (6) ist. In Fig. 1, a roller (1) with on the roller surface (2) adhering dirt cover (3) is shown. On the roll surface (2) a hood (4) according to the invention is moved up, whereby this does not touch the roll surfaces (2). In the hood (4) in the width direction at least one nozzle (5) is provided, from which a gas stream (6) at a speed of more than 20m / s, preferably more than 40m / s, on the roll surface (2) with the dirt cover (3) is inflated. From an economic point of view, speeds over 500m / s no longer make sense. Furthermore, for reasons of noise protection, speeds below 300 m / s are preferred. By the gas flow (6), the dirt deposit (3) from the roll surface (2) and the resulting particles (7) are sucked through at least one suction channel (8) with the exhaust air (9). The volume flow of the exhaust air (9) is dimensioned such that it is greater than the volume of the gas stream (6) supplied via the at least one nozzle (5).
Fig. 2 stellt eine Haube (4) aus Richtung der Walzenoberfläche gesehen dar, wobei die zumindest eine Düse (5) als Schlitzdüse (5.1 ) ausgeführt ist. Derartige Schlitzdüsen (5.1 ) oder Flachschlitzdüsen sind als Luftmesser bzw. Airknife bekannt. Die Schlitzdüse (5.1 ) erstreckt sich über die Breite der Haube (4) und ist in einer Ausführungsform ungefähr mittig vorgesehen. In der dargestellten Ausführungsform sind an der Haube (4) zwei Absaugkanäle (8) vorgesehen, wobei sich der erste Absaugkanal (8.1 ), aus Drehrichtung der Walze gesehen, vor der Schlitzdüse (5.1 ) befindet und sich über einen Großteil der Breite der Haube (4) erstreckt. Zusätzlich ist ein zweiter Absaugkanal (8.2) auf in Drehrichtung der Walze gesehen nachlaufender Seite der Schlitzdüse (5.1 ) vorgesehen. Der in Fig. 2 gezeigte symmetrische Aufbau ist jedoch nicht zwingend, bietet allerdings den Vorteil, dass der Einbau unabhängig von der Drehrichtung erfolgen kann. Fig. 2 shows a hood (4) seen from the direction of the roll surface, wherein the at least one nozzle (5) is designed as a slot nozzle (5.1). Such slot nozzles (5.1) or flat-slot nozzles are known as air knives or Airknife. The slot nozzle (5.1) extends across the width of the hood (4) and is provided approximately centrally in one embodiment. In the illustrated embodiment, two suction channels (8) are provided on the hood (4), the first suction channel (8.1), seen from the direction of rotation of the roller, located in front of the slot nozzle (5.1) and extending over a large part of the width of the hood (FIG. 4). In addition, a second suction channel (8.2) is provided as seen in the direction of rotation of the roller trailing side of the slot nozzle (5.1). However, the symmetrical structure shown in Fig. 2 is not mandatory, but offers the advantage that the installation can be carried out regardless of the direction of rotation.
In einer weiteren Ausführungsform ist nur einer der beiden Absaugkanäle (8.1 oder 8.2) vorgesehen. Hierdurch lässt sich eine kleinere Baugröße der Haube (4) realisieren, was den Einbau und In a further embodiment, only one of the two suction channels (8.1 or 8.2) is provided. This allows a smaller size of the hood (4) realize what the installation and
Verfahrbarkeit der Haube (4) vereinfacht. Die Absaugkanäle (8) können anstelle der gezeigten Breite auch aus mehreren einzelnen nebeneinander angeordneten Absaugkanälen bestehen. Movability of the hood (4) simplified. The suction channels (8) may also consist of a plurality of individual juxtaposed suction channels instead of the width shown.
Die in Fig. 3 dargestellte Ausführungsform ist ebenfalls aus Richtung der Walzenoberfläche betrachtet. Hierbei ist die zumindest eine Düse (5) jedoch in Form eines Düsenbalkens (5.2) ausgebildet, der in Breitenrichtung aus einer Vielzahl nebeneinander angeordneter Einzeldüsen besteht. Auf der in Drehrichtung vorlaufenden Seite des Düsenbalkens (5.2) sind weitere zusätzliche Einzeldüsen (5.3) vorgesehen, durch die der Schmutzbelag (3) bereits vor dem Düsenbalken (5.2) aufgebrochen wird, wodurch sich die Reinigungswirkung weiter verbessern lässt. Vor und zwischen den zusätzlichen Einzeldüsen (5.3) sind mehrere Absaugkanäle (8.3) vorgesehen. Nach dem Düsenbalken (5.2) ist wie beim in Fig. 2 gezeigten Ausführungsbeispiel ein zweiter Absaugkanal (8.2) vorgesehen. The embodiment shown in Fig. 3 is also viewed from the direction of the roll surface. In this case, however, the at least one nozzle (5) is designed in the form of a nozzle bar (5.2), which consists in the width direction of a plurality of juxtaposed individual nozzles. On the upstream side in the direction of rotation of the nozzle bar (5.2) further additional individual nozzles (5.3) are provided, through which the dirt cover (3) is broken even before the nozzle bar (5.2), whereby the cleaning effect can be further improved. Before and between the additional individual nozzles (5.3) several suction channels (8.3) are provided. After the nozzle bar (5.2), as in the embodiment shown in FIG. 2, a second suction channel (8.2) is provided.
Selbstverständlich muss der zweite Absaugkanal (8.2) nicht wie dargestellt als ein einzelner sich in etwa über die Breite der Haube (4) erstreckender Kanal ausgeführt sein, sondern kann auch in mehrere einzelne Absaugkanäle (8.3) aufgeteilt sein. Of course, the second suction channel (8.2) does not have to be designed as a single channel extending approximately over the width of the hood (4) as shown, but may also be divided into a plurality of individual suction channels (8.3).
Fig. 4 zeigt schematisch ein Walzgerüst mit zwei Arbeitswalzen (1.1 ) zwischen denen da zu bearbeitende Bandmaterial (10) durchläuft. Die Arbeitswalzen (1.1 ) werden durch ein Paar Stützwalzen (1.2) abgestützt. Bei der erfindungsgemäßen Vorrichtung können die Hauben (4) sowohl an den Arbeitswalzen (1.1 ) als auch an den Stützwalzen (1 .2) vorgesehen sein. In Anbetracht der Qualitätsanforderungen erfolgt die Anordnung der Hauben (4) und somit die Reinigung an den Arbeitswalzen (1.1 ) vorzugsweise an der Einlaufseite der Bandes (10). Fig. 4 shows schematically a rolling stand with two work rolls (1.1) between which passes through there to be processed strip material (10). The work rolls (1.1) are supported by a pair of back-up rolls (1.2). In the apparatus according to the invention, the hoods (4) can be provided both on the work rolls (1.1) and on the support rolls (1 .2). In view of the Quality requirements, the arrangement of the hoods (4) and thus the cleaning of the work rolls (1.1) preferably on the inlet side of the belt (10).
In einer weiteren Ausführungsform sind weitere Absaugkanäle (1 1 ) zur Absaugung freier Partikel vorgesehen. Der weitere Absaugkanal (1 1 ) weist vorzugsweise eine Breite, die der Breite des bandförmigen Materials entspricht, auf und ist im Bereich der Kontaktstelle der Arbeitswalze (1.1 ) mit dem Band (10) in Austrittsrichtung angeordnet. Weitere Absaugkanäle (1 1 ) können zusätzlich oder alternativ in der Nähe der Kontaktstellen zwischen Arbeits- (1.1 ) und Stützwalze (1.2) bzw. zwischen Stützwalzen (1.2) angeordnet sein. In another embodiment, further suction channels (1 1) are provided for the extraction of free particles. The further suction channel (1 1) preferably has a width corresponding to the width of the band-shaped material, and is arranged in the region of the contact point of the work roll (1.1) with the band (10) in the exit direction. Further suction channels (1 1) can additionally or alternatively be arranged in the vicinity of the contact points between working (1.1) and support roller (1.2) or between support rollers (1.2).

Claims

Patentansprüche claims
1. Vorrichtung zum Reinigen einer Walze (1 ; 1.1 ; 1.2) einer Anlage zur Bearbeitung von 1. A device for cleaning a roller (1, 1.1, 1.2) of a system for processing of
bandförmigem Material (10) bei der zumindest eine Düse (5; 5.1 ; 5.2; 5.3), die einen Gasstrom (6) auf die Oberfläche (2) der Walze (1 ; 1.1 ; 1.2) richtet, und zumindest ein Absaugkanal (8; 8.1 ; 8.2; 8.3) vorgesehen ist, dadurch gekennzeichnet, dass die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) und zumindest ein Absaugkanal (8; 8.1 ; 8.2; 8.3) in einer Haube (4) angeordnet ist, dass die Haube (4) einen Teil des Umfangs der Walze (1 ; 1.1 ; 1.2) überdeckt, dass die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) zumindest eine der Breite des bandförmigen Materials (10) entsprechenden Breite der Walze (1 ; 1.1 ; 1.2) überdeckt, dass die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) in einem Winkel von +/- 45° gegenüber der senkrechten auf die Oberfläche (2) der Walze (1 ; 1 .1 ; 1.2) und in einem Abstand von weniger als 50mm von der Oberfläche (2) der Walze (1 ; 1 .1 ; 1.2) entfernt angeordnet ist.  strip-shaped material (10) in the at least one nozzle (5; 5.1; 5.2; 5.3) which directs a gas flow (6) onto the surface (2) of the roller (1; 1.1; 1.2) and at least one suction channel (8; 8.1, 8.2, 8.3), characterized in that the at least one nozzle (5; 5.1; 5.2; 5.3) and at least one suction channel (8; 8.1; 8.2; 8.3) are arranged in a hood (4) such that the Covering a part of the circumference of the roller (1, 1.1, 1.2), the at least one nozzle (5, 5.1, 5.2, 5.3) has at least one width corresponding to the width of the band-shaped material (10) of the roller (1; 1.1; 1.2) covers that the at least one nozzle (5; 5.1; 5.2; 5.3) at an angle of +/- 45 ° with respect to the vertical on the surface (2) of the roller (1; 1 .1, 1.2) and at a distance of less than 50mm from the surface (2) of the roller (1; 1, 1; 1.2).
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Absaugleistung des zumindest einen in der Haube (4) angeordneten Absaugkanals (8; 8.1 ; 8.2; 8.3) größer als der mittels der zumindest einen in der Haube (4) angeordneten Düse (5; 5.1 ; 5.2; 5.3) eingebrachte Gasstrom (6) ist. 2. Device according to claim 1, characterized in that the suction power of the at least one in the hood (4) arranged suction duct (8; 8.1; 8.2; 8.3) is greater than that by means of at least one in the hood (4) arranged nozzle (5 ; 5.1; 5.2; 5.3) introduced gas stream (6).
3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die zumindest eine Düse (5) als Schlitzdüse (5.1 ) oder als Düsenbalken (5.2) mit mehreren nebeneinander angeordneten Einzeldüsen (5.3) ausgebildet ist. 3. Device according to one of claims 1 or 2, characterized in that the at least one nozzle (5) as a slot nozzle (5.1) or as a nozzle bar (5.2) with a plurality of juxtaposed individual nozzles (5.3) is formed.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Gasstrom (6) mit einer Geschwindigkeit von mindestens 20m/s, vorzugsweise mehr als 40m/s, aus der zumindest einen Düse (5; 5.1 ; 5.2; 5.3) austritt und dass der Gasstrom (6) aus Luft besteht. 4. Device according to one of claims 1 to 3, characterized in that the gas stream (6) at a speed of at least 20m / s, preferably more than 40m / s, from the at least one nozzle (5; 5.1, 5.2, 5.3) exit and that the gas flow (6) consists of air.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zumindest eine weitere Düse (5.3) vorgesehen ist, die in Drehrichtung der Walze (1 ; 1.1 ; 1.2) gesehen vorzugsweise vor der zumindest einen Düse (5; 5.1 ; 5.2; 5.3) angeordnet ist. 5. Device according to one of claims 1 to 4, characterized in that at least one further nozzle (5.3) is provided, seen in the direction of rotation of the roller (1; 1.1; 1.2), preferably in front of the at least one nozzle (5; 5.1, 5.2 ; 5.3) is arranged.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in die 6. Device according to one of claims 1 to 5, characterized in that in the
Zuführleitung der zumindest einen Düse (5; 5.1 ; 5.2; 5.3) und/oder die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) abrasive Partikel zuführbar sind.  Feed line of the at least one nozzle (5; 5.1; 5.2; 5.3) and / or the at least one nozzle (5; 5.1; 5.2; 5.3) abrasive particles are fed.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zumindest die Innenflächen der Haube (4) nur gerundete Übergänge untereinander und/oder kontinuierliche Flächen aufweist. 7. Device according to one of claims 1 to 6, characterized in that at least the inner surfaces of the hood (4) has only rounded transitions with each other and / or continuous surfaces.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) senkrecht auf die Walzenoberfläche (2) und in einen Abstand von 1 mm bis 30mm von der Walzenoberfläche (2) entfernt angeordnet ist. 8. Device according to one of claims 1 to 7, characterized in that the at least one nozzle (5; 5.1; 5.2; 5.3) perpendicular to the roll surface (2) and at a distance of 1 mm to 30mm from the roll surface (2) is arranged remotely.
9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass zumindest ein weiterer Absaugkanal (1 1 ), vorzugsweise über eine Breite die der Breite des bandförmigen Materials (10) entspricht, außerhalb der Haube (4) im Bereich der Kontaktstelle, vorzugsweise in Austrittsrichtung, mit einer benachbarten Walze (1 ; 1.1 ; 1.2) oder dem bandförmigen Material (10) angeordnet ist. 9. Device according to one of claims 1 to 8, characterized in that at least one further suction channel (1 1), preferably over a width corresponding to the width of the band-shaped material (10), outside of the hood (4) in the region of the contact point, preferably in the exit direction, with an adjacent roller (1; 1.1; 1.2) or the band-shaped material (10) is arranged.
10. Verfahren zum Reinigen einer Walze (1 ; 1.1 ; 1.2) einer Anlage zur Bearbeitung von 10. A method for cleaning a roll (1, 1.1, 1.2) of a plant for processing
bandförmigen Material (10) bei der mittels zumindest einer Düse (5; 5.1 ; 5.2; 5.3) ein Gasstrom (6) auf die Oberfläche (2) der Walze (1 ; 1.1 ; 1.2) gerichtet wird und mittels zumindest eines Absaugkanals (8; 8.1 ; 8.2; 8.3) Flitter und gelöste Verunreinigungen abgezogen werden, dadurch gekennzeichnet, dass die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) und der zumindest ein Absaugkanal (8; 8.1 ; 8.2; 8.3) in einer Haube (4) angeordnet wird, dass die Haube (4) einen Teil des Umfangs der Walze (1 ; 1.1 ; 1.2) überdeckt, dass mittels der zumindest einen Düse (5; 5.1 ; 5.2; 5.3) der Gasstrom (6) zumindest über eine der Breite des bandförmigen Materials (10) entsprechenden Breite der Walze (1 ; 1.1 ; 1.2), in einem Winkel von +/- 45° gegenüber der senkrechten auf die Oberfläche (2) der Walze (1 ; 1.1 ; 1.2) und in einem Abstand von weniger als 50mm von der Oberfläche (2) der Walze (1 ; 1.1 ; 1.2) entfernt aufgestrahlt wird.  strip-shaped material (10) in which by means of at least one nozzle (5; 5.1; 5.2; 5.3) a gas flow (6) is directed onto the surface (2) of the roller (1; 1.1; 1.2) and by means of at least one suction channel (8; 8.1, 8.2, 8.3) tinted and dissolved impurities are withdrawn, characterized in that the at least one nozzle (5, 5.1, 5.2, 5.3) and the at least one suction channel (8, 8.1, 8.2, 8.3) in a hood (4) the hood (4) covers part of the circumference of the roller (1; 1.1; 1.2) so that the gas flow (6) is at least over one of the widths of the at least one nozzle (5; 5.1; 5.2; Width of the roller (1, 1.1, 1.2), at an angle of +/- 45 ° with respect to the perpendicular to the surface (2) of the roller (1, 1.1, 1.2) and at a distance of less than 50mm away from the surface (2) of the roller (1; 1.1; 1.2).
11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass mittels des zumindest einen in der Haube (4) angeordneten Absaugkanals (8; 8.1 ; 8.2; 8.3) ein größerer Volumenstrom (9) als der mittels der zumindest einen in der Haube (4) angeordneten Düse (5; 5.1 ; 5.2; 5.3) eingebrachte Gasstrom (6) abgesaugt wird. 11. The method according to claim 10, characterized in that by means of at least one in the hood (4) arranged suction channel (8; 8.1; 8.2; 8.3), a larger volume flow (9) than that by means of at least one in the hood (4) arranged nozzle (5; 5.1; 5.2; 5.3) introduced gas stream (6) is sucked out.
12. Verfahren nach einem der Ansprüche 10 oder 1 1 , dadurch gekennzeichnet, dass der Gasstrom (6) mit einer Geschwindigkeit von mindestens 20m/s, vorzugsweise mehr als 40m/s, aus der zumindest einen Düse (5; 5.1 ; 5.2; 5.3) aufgeblasen wird und dass als Fluid des Gasstroms (6) Luft verwendet wird. 12. The method according to any one of claims 10 or 1 1, characterized in that the gas stream (6) at a speed of at least 20m / s, preferably more than 40m / s, from the at least one nozzle (5, 5.1, 5.2, 5.3 ) is inflated and that is used as the fluid of the gas stream (6) air.
13. Verfahren nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass durch 13. The method according to any one of claims 10 to 12, characterized in that by
zumindest eine weitere Düse (5.3), die in Drehrichtung der Walze (1 ; 1.1 ; 1.2) gesehen vor der zumindest einen Düse (5; 5.1 ; 5.2; 5.3) angeordnet wird, zusätzlich zumindest ein weiterer punktueller Gasstrom (6) aufgeblasen wird.  at least one further nozzle (5.3), which is arranged in the direction of rotation of the roller (1; 1.1; 1.2) in front of the at least one nozzle (5; 5.1; 5.2; 5.3), additionally at least one further pointwise gas flow (6) is inflated.
Verfahren nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, dass dem zumindest einem Gasstrom (6) zumindest zeitweise abrasive Partikel zugeführt werden. Verfahren nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, dass die zumindest eine Düse (5; 5.1 ; 5.2; 5.3) senkrecht auf die Walzenoberfläche (2) und in einen Abstand von 1 mm bis 30mm von der Walzenoberfläche (2) entfernt angeordnet wird. Method according to one of claims 10 to 13, characterized in that the at least one gas stream (6) at least temporarily abrasive particles are supplied. Method according to one of Claims 10 to 14, characterized in that the at least one nozzle (5; 5.1; 5.2; 5.3) is arranged perpendicular to the roll surface (2) and at a distance of 1 mm to 30 mm from the roll surface (2) becomes.
Verfahren nach einem der Ansprüche 10 bis 15, dadurch gekennzeichnet, dass mittels eines weiterer Absaugkanals (1 1 ), vorzugsweise über eine Breite die der Breite des bandförmigen Materials (10) entsprechend, außerhalb der Haube (4) im Bereich der Kontaktstelle, vorzugsweise in Austrittsrichtung, mit einer benachbarten Walze (1 ; 1.1 ; 1 .2) oder dem bandförmigen Material (10) ein weiterer Volumenstrom (9) abgesaugt wird. Method according to one of claims 10 to 15, characterized in that by means of a further suction channel (1 1), preferably over a width corresponding to the width of the band-shaped material (10) outside the hood (4) in the region of the contact point, preferably in Outlet direction, with an adjacent roller (1, 1.1, 1 .2) or the band-shaped material (10), a further volume flow (9) is sucked off.
EP15711747.4A 2014-03-28 2015-03-23 Device for the contact-free cleaning of rollers, and method therefor Active EP3122480B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014004487.4A DE102014004487A1 (en) 2014-03-28 2014-03-28 Non-contact roller cleaning device and method therefor
PCT/EP2015/056106 WO2015144631A1 (en) 2014-03-28 2015-03-23 Device for the contact-free cleaning of rollers, and method therefor

Publications (3)

Publication Number Publication Date
EP3122480A1 true EP3122480A1 (en) 2017-02-01
EP3122480B1 EP3122480B1 (en) 2018-01-31
EP3122480B2 EP3122480B2 (en) 2024-11-06

Family

ID=52727134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15711747.4A Active EP3122480B2 (en) 2014-03-28 2015-03-23 Device for the contact-free cleaning of rollers, and method therefor

Country Status (6)

Country Link
US (1) US20170136511A1 (en)
EP (1) EP3122480B2 (en)
CN (1) CN106163681B (en)
DE (1) DE102014004487A1 (en)
ES (1) ES2664445T3 (en)
WO (1) WO2015144631A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20154683A1 (en) * 2015-10-15 2017-04-15 Puleo S R L APPARATUS AND METHOD FOR THE UNCONDITION OF THE ROTARY CYLINDER HOLES OF A RIPPER.
KR102127690B1 (en) * 2017-08-17 2020-06-29 주식회사 포스코 Scale discharge device
CN109201540B (en) * 2018-08-24 2021-11-30 中冶南方工程技术有限公司 Online roller surface cleaning device and system

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436265A (en) * 1963-08-19 1969-04-01 Thomas A Gardner Pressure gradient web cleaning method
DE2826367C3 (en) * 1978-06-16 1986-03-27 Maschinenfabrik Müller-Weingarten AG, 7987 Weingarten Device for removing the liquid film located on a material belt guided between one or more pairs of working and guide rollers
JPS57165877A (en) 1981-04-07 1982-10-13 Ricoh Co Ltd Cleaning device for image carrier in recorder
CH675974A5 (en) * 1987-10-23 1990-11-30 Lauener Eng Ag
JPH089047B2 (en) 1989-04-28 1996-01-31 日本鋼管株式会社 Roll cleaning method for rolling mill
FI94271C (en) 1992-11-03 1995-08-10 Valmet Paper Machinery Inc Method of cleaning rollers and roller cleaning device
SE500772C2 (en) * 1992-11-25 1994-08-29 Staffan Sjoeberg Device for cleaning moving objects
DK83193A (en) 1993-07-09 1995-01-10 Tresu A S Maskinfabriken Method and apparatus for cleaning the surface of a roller
JPH07290015A (en) * 1994-04-28 1995-11-07 Citizen Watch Co Ltd Dust removing method for article and dust cleaner
EP0731212B1 (en) * 1995-02-24 2001-11-21 Voith Paper Patent GmbH Cleaning device
DE19627973A1 (en) * 1996-07-11 1998-01-15 Voith Sulzer Papiermasch Gmbh Cleaning device
FI104099B (en) * 1996-10-25 1999-11-15 Valmet Corp Method and apparatus for removing dust from a paper machine or the like or a post-treatment device thereof
DE19702793A1 (en) * 1997-01-27 1998-10-08 Voith Sulzer Papiermasch Gmbh Cleaning device
US6093256A (en) * 1997-11-14 2000-07-25 Fort James Corp Embossing roll cleaning method
JPH11216507A (en) * 1998-01-27 1999-08-10 Nisshin Steel Co Ltd Equipment and method of removing foreign matter on roll surface during operation
US6516819B1 (en) * 2000-03-11 2003-02-11 Daniel Dean Pearson Blind hole flushing device
US6799514B2 (en) 2002-01-11 2004-10-05 The Procter & Gamble Company Cleaning apparatus for printing press
US6868785B2 (en) * 2002-03-13 2005-03-22 Goss International Corporation De-Duster for a moving printing material web and cutting device, folder and printing press having the de-duster
JP2005111345A (en) * 2003-10-06 2005-04-28 Tokyo Paper Mfg Co Ltd Electrostatic floatation type dust collecting apparatus and dust collecting method using the same
DE10360011A1 (en) 2003-12-19 2005-07-21 Man Roland Druckmaschinen Ag Device for cleaning rollers, cylinders and printing plates
DE102004006629B3 (en) 2004-02-10 2005-11-17 Sundwig Gmbh Device for cleaning the surface of cylindrical bodies, such as rollers or rollers
DE202004005386U1 (en) * 2004-04-01 2004-06-17 Krumm, Wolfgang, Prof. Dr.-Ing. Cleaning plant, especially descaling plant
JP5893882B2 (en) * 2011-09-28 2016-03-23 東京エレクトロン株式会社 Particle collection device and particle collection method
CN102671967B (en) * 2012-05-04 2015-01-28 中冶南方工程技术有限公司 Active air flow field control type five-rack cold rolling tandem rolling panel cleaning device
CN203470496U (en) * 2013-08-15 2014-03-12 天津市皇泰新型机电节能材料有限公司 Novel air blowing device

Also Published As

Publication number Publication date
US20170136511A1 (en) 2017-05-18
EP3122480B1 (en) 2018-01-31
CN106163681A (en) 2016-11-23
DE102014004487A1 (en) 2015-10-15
WO2015144631A1 (en) 2015-10-01
ES2664445T3 (en) 2018-04-19
EP3122480B2 (en) 2024-11-06
CN106163681B (en) 2018-03-06

Similar Documents

Publication Publication Date Title
EP1899092B1 (en) Apparatus for the continuous surface cleaning of rotationally movable casting rolls of a strip-casting machine
DE3431060A1 (en) DRYING DEVICE AND METHOD FOR REMOVING LIQUID FROM A MOVING SURFACE
DE2526078B2 (en) Roll cooling device for a four-high roll stand
EP1979103B1 (en) Belt cleaning apparatus
EP1827724B1 (en) Method and device for strip blowing-off at the exit from a rolling mill for the production of a spot-free and clean rolled strip
EP3122480B1 (en) Device for the contact-free cleaning of rollers, and method therefor
WO2005095057A1 (en) Cleaning installation
EP4212259B1 (en) Reduction of surface defects during finish rolling of hot strip
DE3150946C2 (en) Device for descaling a steel strand
DE102004006629B3 (en) Device for cleaning the surface of cylindrical bodies, such as rollers or rollers
DE3934095C2 (en) Device for extracting a surface film on rolling stock through air
EP1131170B1 (en) Method and device for reducing the formation of scales on rolling stock
EP1916061A1 (en) Device and method for removing a metal coating
DE19753051C2 (en) Device for removing scale from the surface of a steel strip and collecting device for removing the scale from the strip surface
CN110809497A (en) Cleaning rolled stock during cold rolling of rolled stock
DE4337286A1 (en) Method and apparatus for descaling and cleaning rolled stock such as slabs, thin slabs, hot strip or roughed strip
DE10115993B4 (en) Method for preventing the passage of liquids through the nip during the rolling of strips in strip rolling stands and apparatus for carrying out the method
US11331705B2 (en) Industrial facility comprising a contactless wiper
WO2024051944A1 (en) Method and device for cleaning the surface of a metal wire or metal strip
DE102011118199B3 (en) A method and apparatus for hot dip coating a metal strip with a metallic coating
DE102021207450A1 (en) Apparatus and method for machining at least one surface of continuous non-ferrous metal strip material
EP2782688A1 (en) Method and device for cleaning a surface of a steel product
DE2402552B2 (en) Device for removing the shear dust from the cutting units of clippers
EP3914403A1 (en) Device and method for descaling a moving workpiece
WO2019206365A1 (en) Grinding device

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: 20160830

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

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NUESSEN, ROGER

Inventor name: CENGIZ, SAHIN

Inventor name: ULLMANN, MICHAEL

Inventor name: ZOCHER, UDO

Inventor name: KLEMM, ERHARD

Inventor name: MOLL, OLIVER

Inventor name: SCHMIDT, CHRISTIAN

Inventor name: BLUMENAU, MARC

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THYSSENKRUPP AG

Owner name: THYSSENKRUPP STEEL EUROPE AG

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
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: 20170922

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

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 966869

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015002994

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2664445

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20180419

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

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: 20180131

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

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: 20180430

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: 20180131

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

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: 20180131

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: 20180131

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: 20180501

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: 20180531

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: 20180430

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: 20180131

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: 20180131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502015002994

Country of ref document: DE

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

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: 20180131

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: 20180131

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: 20180131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

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: 20180131

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: 20180131

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: 20180131

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: 20180131

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: 20180131

26 Opposition filed

Opponent name: SMS GROUP GMBH

Effective date: 20181031

Opponent name: VENTILATORENFABRIK OELDE GMBH

Effective date: 20181030

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: IE

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

Effective date: 20180323

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: 20180131

Ref country code: CH

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

Effective date: 20180331

Ref country code: LI

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

Effective date: 20180331

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

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

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180131

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: 20150323

Ref country code: MK

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

Effective date: 20180131

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: 20180131

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

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

Effective date: 20230526

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502015002994

Country of ref document: DE

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

Ref country code: NL

Payment date: 20240320

Year of fee payment: 10

Ref country code: LU

Payment date: 20240320

Year of fee payment: 10

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

Ref country code: AT

Payment date: 20240321

Year of fee payment: 10

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

Ref country code: DE

Payment date: 20240320

Year of fee payment: 10

Ref country code: GB

Payment date: 20240320

Year of fee payment: 10

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

Ref country code: SE

Payment date: 20240320

Year of fee payment: 10

Ref country code: IT

Payment date: 20240329

Year of fee payment: 10

Ref country code: FR

Payment date: 20240328

Year of fee payment: 10

Ref country code: BE

Payment date: 20240320

Year of fee payment: 10

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

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

Ref country code: ES

Payment date: 20240429

Year of fee payment: 10

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20241106

AK Designated contracting states

Kind code of ref document: B2

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: DE

Ref legal event code: R102

Ref document number: 502015002994

Country of ref document: DE