EP3122480B1 - Device for the contact-free cleaning of rollers, and method therefor - Google Patents

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

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Publication number
EP3122480B1
EP3122480B1 EP15711747.4A EP15711747A EP3122480B1 EP 3122480 B1 EP3122480 B1 EP 3122480B1 EP 15711747 A EP15711747 A EP 15711747A EP 3122480 B1 EP3122480 B1 EP 3122480B1
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EP
European Patent Office
Prior art keywords
nozzle
roller
hood
disposed
gas flow
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EP15711747.4A
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German (de)
French (fr)
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EP3122480A1 (en
Inventor
Marc Blumenau
Sahin CENGIZ
Erhard KLEMM
Oliver Moll
Roger NÜSSEN
Christian Schmidt
Michael Ullmann
Udo ZOCHER
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ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
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ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
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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

  • the invention has for its object an apparatus and a method for cleaning of rollers, in particular of support and / or work rolls a strip processing plant, in particular of rolling or skin pass mill, 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.
  • 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.
  • a permanent blowing of the roll surface 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.
  • the dust can be removed directly. A complete housing of the rolling or skin pass mill is thereby eliminated.
  • 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.
  • 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 bar with a plurality of individual nozzles arranged next to one another, wherein the individual nozzles may themselves 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 achieved at 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.
  • 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.
  • 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 represents 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).
  • the in Fig. 2 shown symmetrical structure is not mandatory, but offers the advantage that the installation can be independent of the direction of rotation.
  • suction channels (8) may also consist of a plurality of individual juxtaposed suction channels instead of the width shown.
  • 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.
  • a nozzle bar (5.2) 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 schematically shows a rolling mill with two work rolls (1.1) between which there to undergo band material to be processed (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 (11) are provided for the suction of free particles.
  • the further suction channel (11) preferably has a width which corresponds 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 strip (10) in the outlet direction.
  • Further suction channels (11) may 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).

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

Description

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. 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.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. 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. 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. Eine gattungsgemässe Anlage sowie ein gattungsgemässes Verfahren sind aus EP 0 916 416 A2 bekannt. 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.For dry rolling or -dressing, mechanical, contacting methods are used for roller cleaning in the state of the art, such as brushes and doctor blades, which remove adhering particles or firmly rolled dirt deposit from the roll 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. A generic system and a generic method are off EP 0 916 416 A2 known. The invention has for its object an apparatus and a method for cleaning of rollers, in particular of support and / or work rolls a strip processing plant, in particular of rolling or skin pass mill, 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.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.

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 Kompletteinhausung des Walz- bzw. Dressiergerüstes entfällt hierdurch.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 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 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.An embodiment of the invention for cleaning a roll of a belt-shaped material processing system will now be described, wherein at least one nozzle is provided which directs a flow of fluid to the surface of the roll, and at least one suction channel is provided.

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.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 Punkt- oder 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 bar with a plurality of individual nozzles arranged next to one another, wherein the individual nozzles may themselves 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 Düsenabständen erzielt, die ca. 1-30 mm von der Walzenoberfläche entfernt sind.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 achieved at 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 Walzendurchmesser ist die erfindungsgemäße Reinigungsvorrichtung verstellbar am Walzgerüst angebracht.For maintenance purposes and roll change and to adapt to different roll diameter 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.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.

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.

  • Fig. 1 zeigt eine erfindungsgemäße Reinigungsvorrichtung in Richtung der Walzenbreite gesehen.
  • Fig. 2 zeigt eine weitere erfindungsgemäße Reinigungsvorrichtung aus Richtung der Walzenoberfläche gesehen.
  • Fig. 3 zeigt eine weitere erfindungsgemäße Reinigungsvorrichtung aus Richtung der Walzenoberfläche gesehen.
  • Fig. 4 zeigt ein Walzgerüst mit erfindungsgemäßen Reinigungsvorrichtungen.
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 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.

Bezugszeichenreference numeral

11
Walzeroller
1.11.1
ArbeitswalzeStripper
1.21.2
Stützwalzesupporting roll
22
Walzenoberflächeroll surface
33
Schmutzbelagdirt covering
44
HaubeHood
55
Düsejet
5.15.1
Schlitzdüseslot
5.25.2
Düsenbalkennozzle beam
5.35.3
Einzeldüsesingle nozzle
66
Gasstromgas flow
77
Partikelparticle
88th
Absaugkanalsuction
8.18.1
erster Absaugkanalfirst suction channel
8.28.2
zweiter Absaugkanalsecond suction channel
8.38.3
einzelner Absaugkanalsingle suction channel
99
Abluftexhaust
1010
Bandmaterialband material
1111
Weiterer AbsaugkanalFurther 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 represents 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). The in Fig. 2 However, shown symmetrical structure is not mandatory, but offers the advantage that the installation can be independent 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 Verfahrbarkeit der Haube (4) vereinfacht. Die Absaugkanäle (8) können anstelle der gezeigten Breite auch aus mehreren einzelnen nebeneinander angeordneten Absaugkanälen bestehen.In a further embodiment, only one of the two suction channels (8.1 or 8.2) is provided. This makes it possible to realize a smaller size of the hood (4), which simplifies the installation and movability of the hood (4). 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. 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.In the Fig. 3 embodiment shown is also considered 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) is like in Fig. 2 shown embodiment, a second suction channel (8.2) is provided. 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 schematically shows a rolling mill with two work rolls (1.1) between which there to undergo band material to be processed (10). The work rolls (1.1) are supported by a pair of back-up rolls (1.2). In the device 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 (11) zur Absaugung freier Partikel vorgesehen. Der weitere Absaugkanal (11) 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 (11) 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 a further embodiment, further suction channels (11) are provided for the suction of free particles. The further suction channel (11) preferably has a width which corresponds 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 strip (10) in the outlet direction. Further suction channels (11) may 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 (16)

  1. System for processing strip-type material (10) comprising a roller (1; 1.1; 1.2) and also a device for cleaning the roller (1; 1.1; 1.2), in which system 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 duct (8; 8.1; 8.2; 8.3) are provided, in which system the at least one nozzle (5; 5.1; 5.2; 5.3) covers at least a width of the roller (1; 1.1; 1.2) that corresponds to the width of the strip-type material (10) and is disposed at an angle of +/- 45° in relation to the vertical to the surface (2) of the roller (1; 1.1; 1.2), characterized in that the at least one nozzle (5; 5.1; 5.2; 5.3) and at least one suction duct (8; 8.1; 8.2; 8.3) are disposed in a hood (4), in that the hood (4) covers part of the circumference of the roller (1; 1.1; 1.2), and in that the at least one nozzle (5; 5.1; 5.2; 5.3) is disposed at a spacing of less than 50 mm from the surface (2) of the roller (1; 1.1; 1.2).
  2. System according to Claim 1, characterized in that the suction performance of the at least one suction duct (8; 8.1; 8.2; 8.3) which is disposed in the hood (4) is greater than the gas flow (6) that is introduced by means of the at least one nozzle (5; 5.1; 5.2; 5.3) which is disposed in the hood (4).
  3. System according to one of Claims 1 and 2, characterized in that the at least one nozzle (5) is configured as a slit nozzle (5.1) or as a nozzle beam (5.2) having a plurality of individual nozzles (5.3) disposed beside one another.
  4. System according to one of Claims 1 to 3, characterized in that the gas flow (6) exits from the at least one nozzle (5; 5.1; 5.2; 5.3) at a velocity of at least 20 m/s, preferably of more than 40 m/s, and in that the gas flow (6) is composed of air.
  5. System according to one of Claims 1 to 4, characterized in that at least one further nozzle (5.3) which when viewed in the rotation direction of the roller (1; 1.1; 1.2) is preferably disposed ahead of the at least one nozzle (5; 5.1; 5.2; 5.3) is provided.
  6. System according to one of Claims 1 to 5, characterized in that abrasive particles are capable of being infed into the infeed line of the at least one nozzle (5; 5.1; 5.2; 5.3) and/or into the at least one nozzle (5; 5.1; 5.2; 5.3).
  7. System according to one of Claims 1 to 6, characterized in that at least the internal faces of the hood (4) therebetween have only rounded transitions and/or continuous faces.
  8. System according to one of Claims 1 to 7, characterized in that the at least one nozzle (5; 5.1; 5.2; 5.3) is disposed perpendicularly to the roller surface (2) and at a spacing of 1 mm to 30 mm from the roller surface (2).
  9. System according to one of Claims 1 to 8, characterized in that at least one further suction duct (11) is disposed preferably across a width that corresponds to the width of the strip-type 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 with the strip-type material (10).
  10. Method for cleaning a roller (1; 1.1; 1.2) of a system for processing strip-type material (10), in which method 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 the at least one nozzle (5; 5.1; 5.2; 5.3) the gas flow (6) is sprayed at least across a width of the roller (1; 1.1; 1.2) that corresponds to the width of the strip-type material (10), at an angle of +/- 45° in relation to the vertical to the surface (2) of the roller (1; 1.1; 1.2), characterized in that glitter and dissolved contaminations are stripped by means of at least one suction duct (8; 8.1; 8.2; 8.3), in that the at least one nozzle (5; 5.1; 5.2; 5.3) and the at least one suction duct (8; 8.1; 8.2; 8.3) are disposed in a hood (4), in that the hood (4) covers part of the circumference of the roller (1; 1.1; 1.2), and in that by means of the at least one nozzle (5; 5.1; 5.2; 5.3) the gas flow (6) is sprayed at a spacing of less than 50 mm from the surface (2) of the roller (1; 1.1; 1.2).
  11. Method according to Claim 10, characterized in that by means of the at least one suction duct (8; 8.1; 8.2; 8.3) that is disposed in the hood (4) a volumetric flow (9) which is greater than the gas flow (6) that is introduced by means of the at least one nozzle (5; 5.1; 5.2; 5.3) that is disposed in the hood (4) is suctioned.
  12. Method according to one of Claims 10 and 11, characterized in that the gas flow (6) is blown down from the at least one nozzle (5; 5.1; 5.2; 5.3) at a velocity of at least 20 m/s, preferably of more than 40 m/s, and in that air is used as the fluid of the gas flow (6).
  13. Method according to one of Claims 10 to 12, characterized in that additionally at least one further punctiform gas flow (6) is blown down by at least one further nozzle (5.3) which when viewed in the rotation direction of the roller (1; 1.1; 1.2) is disposed ahead of the at least one nozzle (5; 5.1; 5.2; 5.3).
  14. Method according to one of Claims 10 to 13, characterized in that abrasive particles are at least temporarily infed to the at least one gas flow (6).
  15. 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 disposed perpendicularly to the roller surface (2) and at a spacing of 1 mm to 30 mm from the roller surface (2).
  16. Method according to one of Claims 10 to 15, characterized in that by means of one further suction duct (11) a further volumetric flow (9) is suctioned, preferably across a width that corresponds to the width of the strip-type 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 with the strip-type material (10).
EP15711747.4A 2014-03-28 2015-03-23 Device for the contact-free cleaning of rollers, and method therefor Active EP3122480B1 (en)

Applications Claiming Priority (2)

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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

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EP (1) EP3122480B1 (en)
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DE (1) DE102014004487A1 (en)
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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

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57165877A (en) 1981-04-07 1982-10-13 Ricoh Co Ltd Cleaning device for image carrier in recorder
US4934444A (en) 1987-10-23 1990-06-19 Lauener Engineering, Ltd. Device and method for cooling rolls
JPH02290608A (en) 1989-04-28 1990-11-30 Nkk Corp Cleaning method for roll of rolling mill
EP0608498B1 (en) 1992-11-03 1997-02-19 Valmet Corporation Method for cleaning rolls and cleaning apparatus for rolls
EP0742756B1 (en) 1993-07-09 1997-12-17 Maskinfabriken Tresu A/S Method and apparatus for cleaning a roller surface
DE19627973A1 (en) 1996-07-11 1998-01-15 Voith Sulzer Papiermasch Gmbh Cleaning device
DE69314805T2 (en) 1992-11-25 1998-02-12 Staffan Sjoeberg DEVICE FOR CLEANING MOVING OBJECTS
EP0916416A2 (en) 1997-11-14 1999-05-19 Fort James Corporation Embossing roll cleaning apparatus and related method
US20030205157A1 (en) 2002-01-11 2003-11-06 The Proctor & Gamble Company Cleaning apparatus for printing press
US20050132913A1 (en) 2003-12-19 2005-06-23 Man Roland Druckmaschinen Ag Apparatus for cleaning rolls, cylinders and printing forms
DE102004006629B3 (en) 2004-02-10 2005-11-17 Sundwig Gmbh Device for cleaning the surface of cylindrical bodies, such as rollers or rollers

Family Cites Families (14)

* 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
JPH07290015A (en) * 1994-04-28 1995-11-07 Citizen Watch Co Ltd Dust removing method for article and dust cleaner
ATE209271T1 (en) * 1995-02-24 2001-12-15 Voith Paper Patent 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
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
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
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

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57165877A (en) 1981-04-07 1982-10-13 Ricoh Co Ltd Cleaning device for image carrier in recorder
US4934444A (en) 1987-10-23 1990-06-19 Lauener Engineering, Ltd. Device and method for cooling rolls
JPH02290608A (en) 1989-04-28 1990-11-30 Nkk Corp Cleaning method for roll of rolling mill
EP0608498B1 (en) 1992-11-03 1997-02-19 Valmet Corporation Method for cleaning rolls and cleaning apparatus for rolls
DE69314805T2 (en) 1992-11-25 1998-02-12 Staffan Sjoeberg DEVICE FOR CLEANING MOVING OBJECTS
EP0742756B1 (en) 1993-07-09 1997-12-17 Maskinfabriken Tresu A/S Method and apparatus for cleaning a roller surface
DE19627973A1 (en) 1996-07-11 1998-01-15 Voith Sulzer Papiermasch Gmbh Cleaning device
EP0916416A2 (en) 1997-11-14 1999-05-19 Fort James Corporation Embossing roll cleaning apparatus and related method
US20030205157A1 (en) 2002-01-11 2003-11-06 The Proctor & Gamble Company Cleaning apparatus for printing press
US20050132913A1 (en) 2003-12-19 2005-06-23 Man Roland Druckmaschinen Ag Apparatus for cleaning rolls, cylinders and printing forms
DE102004006629B3 (en) 2004-02-10 2005-11-17 Sundwig Gmbh Device for cleaning the surface of cylindrical bodies, such as rollers or rollers

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Funktionsbeschreibung Zunderabsauganlage", VENTI OELDE, 9 January 2006 (2006-01-09), XP055528467
DIE ABBILDUNG EINER EINZELHEIT DER ZUNDERABSAUGANLAGE
EINE PROJEKTIONSZEICHNUNG DER ZUNDERABSAUGANLAGE

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CN106163681A (en) 2016-11-23
WO2015144631A1 (en) 2015-10-01
CN106163681B (en) 2018-03-06
US20170136511A1 (en) 2017-05-18
DE102014004487A1 (en) 2015-10-15
EP3122480A1 (en) 2017-02-01

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