EP0995504A2 - Method and device for cleaning rolls and/or rollers in strip casting installations, rolling mills and/or strip processing lines, in particular skin pass mills or similar sizing mills - Google Patents

Method and device for cleaning rolls and/or rollers in strip casting installations, rolling mills and/or strip processing lines, in particular skin pass mills or similar sizing mills Download PDF

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Publication number
EP0995504A2
EP0995504A2 EP99118517A EP99118517A EP0995504A2 EP 0995504 A2 EP0995504 A2 EP 0995504A2 EP 99118517 A EP99118517 A EP 99118517A EP 99118517 A EP99118517 A EP 99118517A EP 0995504 A2 EP0995504 A2 EP 0995504A2
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EP
European Patent Office
Prior art keywords
roller
cleaning
rollers
cleaning nozzle
rolls
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
EP99118517A
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German (de)
French (fr)
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EP0995504A3 (en
EP0995504B1 (en
Inventor
Rudolf Dipl.-Ing. Schönenberg
Peter Dr. Biele
Wolfgang Ing. Nentwich
Rolf Dipl.-Ing. Noé
Andreas Dr. mont. Noé
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BWG Bergwerk und Walzwerk Maschinenbau GmbH
ThyssenKrupp Steel Europe AG
Original Assignee
BWG Bergwerk und Walzwerk Maschinenbau GmbH
ThyssenKrupp Stahl AG
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Application filed by BWG Bergwerk und Walzwerk Maschinenbau GmbH, ThyssenKrupp Stahl AG filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH
Publication of EP0995504A2 publication Critical patent/EP0995504A2/en
Publication of EP0995504A3 publication Critical patent/EP0995504A3/en
Application granted granted Critical
Publication of EP0995504B1 publication Critical patent/EP0995504B1/en
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    • 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

Definitions

  • the invention relates to a method for cleaning rollers and / or rolls in strip casting plants, rolling mills and / or Belt process lines, especially skin pass rolls or the like Roughing mills, for the production and / or treatment of Metal strips, after which the rollers and / or rollers each by means of at least one cleaning nozzle with cleaning liquid be applied and along the cleaning nozzle move the roller or roller in question back and forth becomes.
  • metal strips also steel strips.
  • Skin pass rolling mills are often rolls with different Roll diameters used to meet the requirements various steel alloys and product applications to become: For example, a work roll 450 mm New diameter / 400 mm diameter ground for hard materials and 650 mm diameter new / 600 mm Sanded diameter for soft materials.
  • the associated Back-up rolls have a diameter, for example from 900 mm new / 820 mm ground down.
  • the cleaning effect can only be implemented for certain measures Set the roller diameter correctly once. Become used ground rollers, the cleaning effect goes largely lost.
  • the invention is based on the task of a method for Cleaning of rolls and / or rolls in belt casting machines, Rolling mills and / or belt process lines, especially skin pass rolls or the like rolling mills to indicate which through a particularly efficient cleaning effect distinguished and an adaptation to different roller or Roll diameters as well as different ones Belt materials and belt speeds enabled.
  • a device is to be created for Carrying out this cleaning process is particularly suitable is and by simple and functional design distinguished.
  • the invention solves this problem with a generic one Process in that the distance between the cleaning nozzle and the roller jacket or roller jacket of the concerned Roller or roller set to a predetermined size or is regulated. - These measures of the invention have the consequence that even with a changing Distance between roller jacket or roller jacket one defined setting of the cleaning nozzle in question can be, and also by means of a regulation. Because according to the teaching of the invention with a distance variable Cleaning nozzle worked. This makes it easy an adaptation of the cleaning nozzle or its distance different roller or roller diameters possible. As a result, the cleaning effect is optimized.
  • the independent meaning comes, it is provided that the metal strip in question before contact with rollers or rollers on its upper side and / or underside by means of one or more cleaning nozzles charged with cleaning fluid and is hydromechanically cleaned. To that extent, the cleaning of the relevant rolls or rollers at least considerably relieved, if not superfluous in some cases.
  • the relevant Metal tape when cleaning liquid rolls over a roll is acted upon, consequently the relevant Metal tape in the course of cleaning on the roll can support against the fluid pressure. Because preferably with a fluid pressure of at least 100 bar cleaned.
  • a cleaning liquid is expedient desalted or salt-free water used.
  • the cleaning fluid can be anti-corrosive Additions are added.
  • the invention also relates to a device for Carrying out the claimed process, with rollers and / or rollers for generating and / or treating one Metal strip and at least one of the respective Cleaning nozzle assigned to rollers or rollers, the Cleaning nozzle along the roller or roller in question traversed.
  • This device is characterized in that that the cleaning nozzle on the piston rod of a controllable or adjustable cylinder piston assembly is attached or vice versa, which on the roller to be cleaned or Role is directed.
  • the cleaning nozzle also on the cylinder of the cylinder piston assembly can be attached if the piston rod is a stationary Assumes position and the cylinder against the relevant Roller or roller can be moved.
  • the cylinder piston assembly can be used as pneumatic cylinder or hydraulic cylinder be trained.
  • an in constructively relatively simple construction realized the cleaning nozzle in the course of a change in distance against the roll shell in question or To move the roller jacket.
  • the cleaning nozzle is according to the invention designed as a rotary nozzle, which is characterized by has a particularly good cleaning effect.
  • the spray angle between the relevant roller or roller and the cleaning nozzle adjustable e.g. B. is adjustable between 60 ° and 120 ° the cleaning nozzle taking into account the respective Diameter ratios optimal against the one to be cleaned To be able to turn on the roller or roller.
  • the angle of inclination of the cylinder piston assembly with the cleaning nozzle opposite the one in question Roller or roller is adjustable. In both cases the setting can also be made by means of a regulation.
  • FIG. 1 In the figures is a device for cleaning rollers 1 in skin-pass mills as part of the treatment of a metal strip M shown.
  • the rolls 1, namely both work rolls 1a and backup rolls 1b are each by means of at least one cleaning nozzle 2 with cleaning liquid acted upon.
  • the cleaning nozzles 2 are along the relevant one Rollers 1 can be moved back and forth.
  • the cleaning nozzles. 2 on the piston rod 6 of a controllable or adjustable cylinder piston assembly 7 attached, which directed to the rollers 1 to be cleaned and on the traversing carriage 4 are stored.
  • the Distance A between the cleaning nozzles 2 and the roller jacket 8 of the relevant rolls 1 is adjusted or regulated. Consequently, even then a constant distance A between the cleaning nozzles 2 and set up the relevant rollers 1 when the rollers 1 are ground be or rolls 1 of different diameters be used. Because the distance A between that Roller jacket 8 is made by moving the cleaning nozzles 2 kept constant, namely less than 100 mm. Moreover can traverse the speed of the back and forth Cleaning nozzles 2 depending on the belt speed and / or the strip material and / or the strip surface be adjusted or regulated.
  • the cleaning nozzles 2 are designed as rotary nozzles.
  • the spray angle between the rollers 1 and the cleaning nozzles 2 is adjustable, e.g. B. adjustable between 60 ° and 120 °.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Metal Rolling (AREA)
  • Cleaning In General (AREA)

Abstract

Process for cleaning rollers and/or rolls in continuous casting plants, strip process lines and/or rolling mills comprises subjecting the rollers and/or rolls to a cleaning fluid from a nozzle that is moved to and fro along the rollers and/or rolls. The distance between the nozzle and the roller sleeve or roll sleeve is adjusted or regulated to a prescribed dimension. An Independent claim is also included for an apparatus for cleaning rollers and/or rolls comprising a cleaning nozzle (2) fixed to the piston rod (6) of a controllable or regulatable cylinder piston unit (7) directed onto the roller or roll to be cleaned.

Description

Die Erfindung betrifft ein Verfahren zum Reinigen von Walzen und/oder Rollen in Bandgießanlagen, Walzwerken und/oder Bandprozeßlinien, insbesondere Dressierwalzen oder dergleichen Nachwalzwerken, zur Erzeugung und/oder Behandlung von Metallbändern, wonach die Walzen und/oder Rollen jeweils mittels zumindest einer Reinigungsdüse mit Reinigungsflüssigkeit beaufschlagt werden und die Reinigungsdüse entlang der betreffenden Walze oder Rolle hin- und herverfahren wird. - Im Rahmen der Erfindung umfaßt "Metallbänder" auch Stahlbänder.The invention relates to a method for cleaning rollers and / or rolls in strip casting plants, rolling mills and / or Belt process lines, especially skin pass rolls or the like Roughing mills, for the production and / or treatment of Metal strips, after which the rollers and / or rollers each by means of at least one cleaning nozzle with cleaning liquid be applied and along the cleaning nozzle move the roller or roller in question back and forth becomes. - In the context of the invention includes "metal strips" also steel strips.

Es ist bekannt, in beispielsweise Verzinkungslinien Dressierwalzen zu integrieren, durch welche dem verzinktem Metallband bestimmte Oberflächencharakteristiken aufgeprägt und die Materialeigenschaften gezielt verändert werden. Dabei besteht die Gefahr, daß auf der Bandoberfläche nur teilweise anhaftende Zinkpartikel beim Walzen auf die Arbeits- und Stützwalzen übertragen werden. Die Zinkpartikel bleiben an dem Walzenmantel haften und erzeugen mit jeder Umdrehung einen Eindruck in die Bandoberfläche. Eindrücke auf dem Metallband gelten als Defekte und können das betreffende Metallband - in Abhängigkeit von seinem jeweiligen Verwendungszweck - unbrauchbar machen. Es wird zu einem unverkäuflichen Produktionsausschuß. - Um das Risiko des Anhaftens von Partikeln auf den Walzen von Dressierwalzwerken zu verringern, ist es bekannt, solche Dressierwalzwerke naß zu fahren. Es sind Putzvorrichtungen in Form von Bürsten, Vliesrollen und Vlieskissen bekannt, welche entweder so breit wie das breiteste Metallband sind oder über die Ballenlänge der betreffenden Walzen traversieren. Die Reinigungswirkung von Bürsten, Vliesrollen, Vileskissen oder dergleichen ist begrenzt und häufig unzureichend. - Ferner kennt man eine Hochdruckflüssigkeitsreinigung, bei welcher jeweils eine Breitflachdüse pro Walze die betreffende Walze mit Wasser besprüht. Bei dieser bekannten Ausführungsform ist die Position der Reinigungsdüse gegenüber dem Walzenmantel nicht variabel. Darüber hinaus wird mit einer undefinierten Traversiergeschwindigkeit gearbeitet. Schon aus diesem Grunde funktioniert diese bekannte Hochdruckwasserreinigung nur bei konstanten Walzendurchmessern und relativ konstanten Bandgeschwindigkeiten hinreichend zufriedenstellend. Allerdings ist die Wirksamkeit durch den Einsatz von Breitflachdüsen begrenzt. - In beispielsweise Dressierwalzwerken werden häufig Walzen mit unterschiedlichen Walzendurchmessern eingesetzt, um den Anforderungen verschiedener Stahllegierungen und Produktanwendungen gerecht zu werden: Zum Beispiel eine Arbeitswalze 450 mm Durchmesser neu / 400 mm Durchmesser abgeschliffen für harte Materialien und 650 mm Durchmesser neu / 600 mm Durchmesser abgeschliffen für weiche Materialien. Die zugehörigen Stützwalzen weisen beispielsweise einen Durchmesser von 900 mm neu / 820 mm abgeschliffen auf. Mit den bekannten Maßnahmen läßt sich die Reinigungswirkung nur für bestimmte Walzendurchmesser einmal richtig einstellen. Werden abgeschliffene Walzen eingesetzt, geht die Reinigungswirkung weitgehend verloren.It is known, for example, in galvanizing lines, skin pass rolls to integrate through which the galvanized Metal band imprinted certain surface characteristics and the material properties are specifically changed. Here there is a risk that only on the belt surface partially adhering zinc particles when rolling onto the Work and backup rolls are transferred. The zinc particles stick to the roll shell and produce with every turn an impression of the belt surface. impressions on the metal band are considered defects and can do that relevant metal strip - depending on its respective Intended use - make it unusable. It gets too an unsaleable production committee. - About the risk of particles adhering to the rollers of skin pass mills to reduce, it is known to such skin pass rolling mills driving wet. There are cleaning devices in the form of brushes, fleece rolls and fleece pillows known are either as wide as the widest metal band or traverse over the bale length of the rollers in question. The cleaning effect of brushes, fleece rolls, Viles pillows or the like is limited and often insufficient. - Also known is high pressure liquid cleaning, at which each have a wide flat nozzle per roller Sprayed roller with water. In this known embodiment is the position of the cleaning nozzle the roll shell is not variable. In addition, with worked at an undefined traversing speed. For this reason alone, this well-known high pressure water purification works only with constant roller diameters and relatively constant belt speeds are sufficient satisfactory. However, the effectiveness of the Limited use of wide flat nozzles. - In for example Skin pass rolling mills are often rolls with different Roll diameters used to meet the requirements various steel alloys and product applications to become: For example, a work roll 450 mm New diameter / 400 mm diameter ground for hard materials and 650 mm diameter new / 600 mm Sanded diameter for soft materials. The associated Back-up rolls have a diameter, for example from 900 mm new / 820 mm ground down. With the known The cleaning effect can only be implemented for certain measures Set the roller diameter correctly once. Become used ground rollers, the cleaning effect goes largely lost.

Ähnliche Probleme gibt es auch bei Rollen und Walzen in Stranggieß- und Bandgießanlagen sowie für Rollen in Walzwerken und Bandprozeßlinien. Außerdem stellt sich z. B. in Aluminiumprozeßlinien das Problem des mehr oder weniger fest anhaftenden Aluminiumoxids auf der Bandoberfläche. Auch das kann auf Rollen oder auch Walzen, nämlich Streckwalzen anhaften und zu Aufwachsungen und Bandoberflächendefekten führen. - Hier will die Erfindung Abhilfe schaffen.There are similar problems with rolls and rollers in Continuous casting and strip casting systems as well as for rolls in rolling mills and belt process lines. In addition, z. B. in Aluminum process lines the problem of more or less firmly adhering aluminum oxide on the belt surface. This can also be done on rollers or rollers, namely stretching rollers cling and to growths and band surface defects to lead. - The invention seeks to remedy this.

Der Erfindung liegt die Aufgabe zugrunze, ein Verfahren zum Reinigen von Walzen und/oder Rollen in Bandgießanlagen, Walzwerken und/oder Bandprozeßlinien, insbesondere Dressierwalzen oder dergleichen Nachwalzwerken, anzugeben, welches sich durch eine besonders effiziente Reinigungswirkung auszeichnet und eine Anpassung an unterschiedliche Walzen- bzw. Rollendurchmesser ebenso wie an unterschiedliche Bandmaterialien und Bandgeschwindigkeiten ermöglicht. Außerdem soll eine Vorrichtung geschaffen werden, die zur Durchführung dieses Reinigungsverfahrens besonders geeignet ist und sich durch einfache und funktionsgerechte Bauweise auszeichnet.The invention is based on the task of a method for Cleaning of rolls and / or rolls in belt casting machines, Rolling mills and / or belt process lines, especially skin pass rolls or the like rolling mills to indicate which through a particularly efficient cleaning effect distinguished and an adaptation to different roller or Roll diameters as well as different ones Belt materials and belt speeds enabled. In addition, a device is to be created for Carrying out this cleaning process is particularly suitable is and by simple and functional design distinguished.

Diese Aufgabe löst die Erfindung bei einem gattungsgemäßen Verfahren dadurch, daß der Abstand zwischen der Reinigungsdüse und dem Walzenmantel oder Rollenmantel der betreffenden Walze oder Rolle auf ein jeweils vorgegebenes Maß eingestellt oder geregelt wird. - Diese Maßnahmen der Erfindung haben zur Folge, daß selbst bei einem sich verändernden Abstand zwischen Walzenmantel oder Rollenmantel eine definierte Einstellung der betreffenden Reinigungsdüse vorgenommen werden kann, und zwar auch im Wege einer Regelung. Denn nach Lehre der Erfindung wird mit einer abstandsvariablen Reinigungsdüse gearbeitet. Dadurch ist unschwer eine Anpassung der Reinigungsdüse bzw. deren Abstand an unterschiedliche Walzen- oder Rollendurchmesser möglich. Folglich wird die Reinigungswirkung optimiert. Das gilt insbesondere auch unter Berücksichtigung der Tatsache, daß nach einer weiteren Ausführungsform der Erfindung mit erfinderischer Bedeutung die Traversiergeschwindigkeit der hin- und herbewegten Reinigungsdüse in Abhängigkeit von der Bandgeschwindigkeit und/oder des Bandmaterials und/oder der Bandoberfläche eingestellt oder geregelt werden kann. Auf diese Weise wird eine besonders effiziente Reinigungswirkung erreicht.The invention solves this problem with a generic one Process in that the distance between the cleaning nozzle and the roller jacket or roller jacket of the concerned Roller or roller set to a predetermined size or is regulated. - These measures of the invention have the consequence that even with a changing Distance between roller jacket or roller jacket one defined setting of the cleaning nozzle in question can be, and also by means of a regulation. Because according to the teaching of the invention with a distance variable Cleaning nozzle worked. This makes it easy an adaptation of the cleaning nozzle or its distance different roller or roller diameters possible. As a result, the cleaning effect is optimized. That applies especially taking into account the fact that according to a further embodiment of the invention with inventive Meaning the traversing speed of the reciprocating cleaning nozzle depending on the Belt speed and / or the belt material and / or the Belt surface can be adjusted or regulated. On this way becomes a particularly efficient cleaning effect reached.

Weitere erfindungswesentliche Maßnahmen sind im folgenden aufgeführt. So kann der Abstand zwischen dem Walzenmantel oder Rollenmantel durch Nachfahren der Reinigungsdüse kontantgehalten werden, also selbst unter Berücksichtigung eines sich ändernden Walzendurchmessers oder Rollendurchmessers. Insoweit kommt also die nach Lehre der Erfindung variable Einstellung der Reinigungsdüse zum Tragen. In diesem Zusammenhang sieht die Erfindung vor, daß der Abstand zwischen dem Walzenmantel oder Rollenmantel und der Reinigungsdüse kleiner als 100 mm gehalten wird, um eine effiziente Hochdruckreinigung zu erreichen.Further measures essential to the invention are as follows listed. So the distance between the roll shell or roller jacket by moving the cleaning nozzle be kept constant, even taking into account a changing roll diameter or roll diameter. In this respect comes the teaching of the invention variable adjustment of the cleaning nozzle for carrying. In this Context, the invention provides that the distance between the roller jacket or roller jacket and the cleaning nozzle is kept smaller than 100 mm to be efficient To achieve high pressure cleaning.

Nach einem Vorschlag der Erfindung, dem selbständige Bedeutung zukommt, ist vorgesehen, daß das betreffende Metallband vor Walzen- oder Rollenkontaktierung auf seiner Oberseite und/oder Unterseite mittels einer oder mehrerer Reinigungsdüsen mit Reinigungsflüssigkeit beaufschlagt und hydromechanisch gereinigt wird. Insoweit wird die Reinigung der betreffenden Walzen oder Rollen zumindest erheblich erleichtert, wenn nicht sogar in manchen Fällen überflüssig. - Nach einer Variante ist vorgesehen, daß das betreffende Metallband beim Überlaufen einer Rolle mit Reinigungsflüssigkeit beaufschlagt wird, sich folglich das betreffende Metallband im Zuge der Reinigung auf der Rolle gegen den Flüssigkeitsdruck abstützen kann. Denn vorzugsweise wird mit einem Flüssigkeitsdruck von mindestens 100 bar gereinigt. - Als Reinigungsflüssigkeit wird zweckmäßigerweise entsalztes bzw. salzfreies Nasser verwendet. Außerdem können der Reinigungsflüssigkeit korrosionshemmende Zusätze beigegeben werden.According to a proposal of the invention, the independent meaning comes, it is provided that the metal strip in question before contact with rollers or rollers on its upper side and / or underside by means of one or more cleaning nozzles charged with cleaning fluid and is hydromechanically cleaned. To that extent, the cleaning of the relevant rolls or rollers at least considerably relieved, if not superfluous in some cases. - According to a variant it is provided that the relevant Metal tape when cleaning liquid rolls over a roll is acted upon, consequently the relevant Metal tape in the course of cleaning on the roll can support against the fluid pressure. Because preferably with a fluid pressure of at least 100 bar cleaned. - As a cleaning liquid is expedient desalted or salt-free water used. In addition, the cleaning fluid can be anti-corrosive Additions are added.

Gegenstand der Erfindung ist auch eine Vorrichtung zur Durchführung des beanspruchten Verfahrens, mit Walzen und/oder Rollen zum Erzeugen und/oder Behandeln eines Metallbandes und zumindest jeweils einer den betreffenden Walzen oder Rollen zugeordneten Reinigungsdüse, wobei die Reinigungsdüse entlang der betreffende Walze oder Rolle traversiert. Diese Vorrichtung ist dadurch gekennzeichnet, daß die Reinigungsdüse an der Kolbenstange einer steuerbaren oder regelbaren Zylinderkolbenanordnung befestigt ist oder umgekehrt, welche auf die zu reinigende Walze oder Rolle gerichtet ist. Umgekehrt bedeutet, daß die Reinigungsdüse auch an dem Zylinder der Zylinderkolbenanordnung befestigt sein kann, wenn die Kolbenstange eine ortsfeste Position einnimmt und der Zylinder gegen die betreffende Walze oder Rolle verfahren werden kann. Die Zylinderkolbenanordnung kann als Pneumatikzylinder oder Hydraulikzylinder ausgebildet sein. Jedenfalls wird auf diese Weise eine in konstruktiver Hinsicht verhältnismäßig einfache Konstruktion verwirklicht, um die Reinigungsdüse im Zuge einer Abstandsveränderung gegen den betreffenden Walzenmantel oder Rollenmantel zu verfahren. Die Reinigungsdüse ist erfindungsgemäß als Rotationsdüse ausgebildet, die sich durch einen besonders guten Reinigungseffekt auszeichnet. Weiter sieht die Erfindung vor, daß der Spritzwinkel zwischen der betreffenden Walze oder Rolle und der Reinigungsdüse einstellbar, z. B. zwischen 60° und 120° einstellbar ist, um die Reinigungsdüse unter Berücksichtigung der jeweiligen Durchmesserverhältnisse optimal gegen die jeweils zu reinigende Walze oder Rolle anstellen zu können. Das kann auch dadurch gelingen, daß der Neigungswinkel der Zylinderkolbenanordnung mit der Reinigungsdüse gegenüber der betreffenden Walze oder Rolle einstellbar ist. In beiden Fällen kann die Einstellung auch im Wege einer Regelung erfolgen.The invention also relates to a device for Carrying out the claimed process, with rollers and / or rollers for generating and / or treating one Metal strip and at least one of the respective Cleaning nozzle assigned to rollers or rollers, the Cleaning nozzle along the roller or roller in question traversed. This device is characterized in that that the cleaning nozzle on the piston rod of a controllable or adjustable cylinder piston assembly is attached or vice versa, which on the roller to be cleaned or Role is directed. Conversely means that the cleaning nozzle also on the cylinder of the cylinder piston assembly can be attached if the piston rod is a stationary Assumes position and the cylinder against the relevant Roller or roller can be moved. The cylinder piston assembly can be used as pneumatic cylinder or hydraulic cylinder be trained. In any case, an in constructively relatively simple construction realized the cleaning nozzle in the course of a change in distance against the roll shell in question or To move the roller jacket. The cleaning nozzle is according to the invention designed as a rotary nozzle, which is characterized by has a particularly good cleaning effect. Further The invention provides that the spray angle between the relevant roller or roller and the cleaning nozzle adjustable, e.g. B. is adjustable between 60 ° and 120 ° the cleaning nozzle taking into account the respective Diameter ratios optimal against the one to be cleaned To be able to turn on the roller or roller. It can also succeed in that the angle of inclination of the cylinder piston assembly with the cleaning nozzle opposite the one in question Roller or roller is adjustable. In both cases the setting can also be made by means of a regulation.

Im Rahmen der Erfindung besteht auch die Möglichkeit, daß mehrere Reinigungsdüsen über die Ballenlänge der betreffenden Walzen oder Rollen traversierend angeordnet sind. Sofern eine Bandreinigung vorgenommen werden soll, bevor das betreffende Metallband die zu reinigenden Walzen oder Rollen kontaktiert, sind zweckmäßigerweise eine oder mehrere Reinigungsdüsen oberhalb und/oder unterhalb des betreffenden Metallbandes angeordnet und mit einstellbaren Spritzwinkeln gegen das Metallband gerichtet. Dabei können die Reinigungsdüse (n) auf das eine Rolle überlaufende Metallband gerichtet sein, wenn das Metallband im Wege der Hochdruckbeaufschlagung hinreichend abgestützt sein muß. Within the scope of the invention there is also the possibility that several cleaning nozzles over the length of the bale concerned Rollers or rollers are arranged traversing. Provided a belt cleaning should be done before the Metal strip concerned the rollers or rolls to be cleaned contacted, are expediently one or more Cleaning nozzles above and / or below that Metal band arranged and with adjustable spray angles directed against the metal band. The Cleaning nozzle (s) on the metal belt overflowing a roll be directed when the metal strip is subjected to high pressure must be adequately supported.

Im folgender, wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen:

Fig. 1
ein Dressierwerk mit Arbeitswalzen und Stützwalzen in schematischer Seitenansicht und
Fig. 2
eine Draufsicht auf der. Gegenstand nach Fig. 1 ohne die Stützwalzen.
In the following, the invention will be explained in more detail with reference to a drawing that shows only one exemplary embodiment. Show it:
Fig. 1
a skin pass mill with work rolls and backup rolls in a schematic side view and
Fig. 2
a top view of the. 1 without the support rollers.

In den Figuren ist eine Vorrichtung zum Reinigen von Walzen 1 in Dressierwerken im Zuge der Behandlung eines Metallbandes M dargestellt. Die Walzen 1, nämlich sowohl Arbeitswalzen 1a als auch Stützwalzen 1b werden mittels jeweils zumindest einer Reinigungsdüse 2 mit Reinigungsflüssigkeit beaufschlagt. Die Reinigungsdüsen 2 sind entlang der betreffenden Walzen 1 hin- und herverfahrbar. Dazu sind die Reinigungsdüsen 2 auf entlang der Walzen 1 traversierenden Fahrwerken 3 mit einem Schlitten 4 und entsprechenden Fahrschienen 5 angeordnet. Nach dem Ausführungsbeispiel sind die Reinigungsdüsen. 2 an der Kolbenstange 6 einer steuerbaren oder regelbaren Zylinderkolbenanordnung 7 befestigt, welche auf die zu reinigenden Walzen 1 gerichtet und auf dem traversierenden Schlitten 4 gelagert sind. Mit Hilfe der Zylinderkolbenanordnungen 7, bei denen es sich nach dem Ausführungsbeispiel um Pneumatikzylinder handelt, ist der Abstand A zwischen den Reinigungsdüsen 2 und dem Walzenmantel 8 der betreffenden Walzen 1 auf ein vorgegebenes Maß einstellbar oder regelbar. Folglich läßt sich selbst dann ein konstanter Abstand A zwischen den Reinigungsdüsen 2 und den betreffenden Walzen 1 einrichten, wenn die Walzen 1 abgeschliffen werden oder Walzen 1 unterschiedlicher Durchmesser eingesetzt werden. Denn der Abstand A zwischen dem Walzenmantel 8 wird durch Nachfahren der Reinigungsdüsen 2 konstant gehalten, und zwar kleiner als 100 mm. Außerdem kann die Traversiergeschwindigkeit der hin- und herbewegten Reinigungsdüsen 2 in Abhängigkeit von der Bandgeschwindigkeit und/oder des Bandmaterials und/oder der Bandoberfläche eingestellt oder geregelt werden.In the figures is a device for cleaning rollers 1 in skin-pass mills as part of the treatment of a metal strip M shown. The rolls 1, namely both work rolls 1a and backup rolls 1b are each by means of at least one cleaning nozzle 2 with cleaning liquid acted upon. The cleaning nozzles 2 are along the relevant one Rollers 1 can be moved back and forth. For that are the Cleaning nozzles 2 on traversing along the rollers 1 Trolleys 3 with a carriage 4 and corresponding rails 5 arranged. According to the embodiment the cleaning nozzles. 2 on the piston rod 6 of a controllable or adjustable cylinder piston assembly 7 attached, which directed to the rollers 1 to be cleaned and on the traversing carriage 4 are stored. With help the cylinder piston assemblies 7, which are after Embodiment is pneumatic cylinder, is the Distance A between the cleaning nozzles 2 and the roller jacket 8 of the relevant rolls 1 to a predetermined size adjustable or adjustable. Consequently, even then a constant distance A between the cleaning nozzles 2 and set up the relevant rollers 1 when the rollers 1 are ground be or rolls 1 of different diameters be used. Because the distance A between that Roller jacket 8 is made by moving the cleaning nozzles 2 kept constant, namely less than 100 mm. Moreover can traverse the speed of the back and forth Cleaning nozzles 2 depending on the belt speed and / or the strip material and / or the strip surface be adjusted or regulated.

Die Reinigungsdüsen 2 sind als Rotationsdüsen ausgebildet. Der Spritzwinkel zwischen den Walzen 1 und den Reinigungsdüsen 2 ist einstellbar, z. B. zwischen 60° und 120° einstellbar. Es besteht aber auch die Möglichkeit, den Neigungswinkel der Zylinderkolbenanordnungen 7 mit den Reinigungsdüsen 2 gegenüber den betreffenden Walzen 1 einzustellen. Dazu ist eine entsprechende Lagerung der Zylinderkolbenanordnungen 7 auf deren Fahrwerken 3 bzw. Schlitten 4 vorgesehen.The cleaning nozzles 2 are designed as rotary nozzles. The spray angle between the rollers 1 and the cleaning nozzles 2 is adjustable, e.g. B. adjustable between 60 ° and 120 °. But there is also the possibility of Inclination angle of the cylinder piston assemblies 7 with the Adjust cleaning nozzles 2 with respect to the relevant rollers 1. For this purpose, there is a corresponding storage of the cylinder piston arrangements 7 on their trolleys 3 or sled 4 provided.

Claims (17)

Verfahren zum Reinigen von Walzen und/oder Rollen in Bandgießanlagen, Walzwerken und/oder Bandprozeßlinien, insbesondere Dressierwerken oder dergleichen Nachwalzwerken, zur Erzeugung und/oder Behandlung von Merallbändern, wonach die Walzen und/oder Rollen jeweils mittels zumindest einer Reinigungsdüse mit Reinigungsflüssigkeit beaufschlagt werden und die Reinigungsdüse entlang der betreffenden Walze oder Rolle hin- und herverfahren wird, dadurch gekennzeichnet, daß der Abstand zwischen der Reinigungsdüse und dem Walzenmantel oder Rollenmantel der betreffenden Walze oder Rolle auf ein jeweils vorgegebenes Maß eingestellt oder geregelt wird.Process for cleaning rolls and / or rolls in strip casting plants, rolling mills and / or strip processing lines, in particular skin pass mills or similar finishing rolls, for producing and / or treating merall strips, after which the rolls and / or rolls are each supplied with cleaning liquid by means of at least one cleaning nozzle and the cleaning nozzle is moved back and forth along the relevant roller or roller, characterized in that the distance between the cleaning nozzle and the roller shell or roller shell of the roller or roller in question is set or regulated to a respectively predetermined dimension. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Traversiergeschwindigkeit der hin- und herbewegten Reinigungsdüse in Abhängigkeit von der Bandgeschwindigkeit und/oder des Bandmaterials und/oder der Bandoberfläche eingestellt oder geregelt wird.A method according to claim 1, characterized in that the traversing speed of the reciprocated Cleaning nozzle depending on the belt speed and / or the strip material and / or the strip surface or is regulated. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand zwischen dem Walzenmantel oder Rollenmantel durch Nachfahren der Reinigungsdüse konstant gehalten wird.A method according to claim 1, characterized in that the distance between the roll shell or roller shell is kept constant by moving the cleaning nozzle. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Abstand zwischen dem Walzenmantel oder Rollenmantel und der Reinigungsdüse kleiner als 100 mm gehalten wird. Method according to one of claims 1 to 3, characterized in that that the distance between the roll shell or roller jacket and the cleaning nozzle less than 100 mm is held. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das betreffende Metallband vor Walzen- oder Rollenkontaktierung auf seiner Oberseite und/oder Unterseite mittels einer oder mehrerer Reinigungsdüsen mit Reinigungsflüssigkeit beaufschlagt und hydromechanisch gereinigt wird.Method according to one of claims 1 to 4, characterized in that that the metal strip in question before rolling or Roller contact on its top and / or Bottom with one or more cleaning nozzles Cleaning liquid applied and cleaned hydromechanically becomes. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das betreffende Metallband beim Überlaufen einer Rolle mit Reinigungsflüssigkeit beaufschlagt wird.Method according to one of claims 1 to 5, characterized in that that the metal strip in question when overflowing a roll of cleaning liquid becomes. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß mit einem Flüssigkeitsdruck von mindestens 100 bar gereinigt wird.Method according to one of claims 1 to 6, characterized in that that with a fluid pressure of at least 100 bar is cleaned. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß als Reinigungsflüssigkeit entsalztes bzw. salzfreies Wasser verwendet wird.Method according to one of claims 1 to 7, characterized in that that desalinated or as cleaning liquid salt-free water is used. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Reinigungsflüssigkeit korrosionshemmende Zusätze beigegeben werden.Method according to one of claims 1 to 8, characterized in that that the cleaning fluid is anti-corrosive Additions are added. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 9, mit Walzen und/oder Rollen zum Erzeugen und/oder Behandeln eines Metallbandes und zumindest jeweils einer den betreffenden Walzen oder Rollen zugeordneten Reinigungsdüse, wobei die Reinigungsdüse entlang der betreffenden Walze oder Rolle traversiert, dadurch gekennzeichnet, daß die Reinigungsdüse (2) an der Kolbenstange (6) einer steuerbaren oder regelbaren Zylinderkolbenanordnung (7) befestigt ist (oder umgekehrt), welche auf die zu reinigende Walze (1) oder Rolle gerichtet ist.Device for carrying out the method according to one of claims 1 to 9, with rollers and / or rollers for producing and / or treating a metal strip and at least one cleaning nozzle assigned to the respective rollers or rollers, the cleaning nozzle traversing along the relevant roller or roller, characterized in that the cleaning nozzle (2) is attached to the piston rod (6) of a controllable or regulatable cylinder piston arrangement (7) (or vice versa) which is directed towards the roller (1) or roller to be cleaned. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Reinigungsdüse (2) als Rotationsdüse ausgebildet ist.Apparatus according to claim 10, characterized in that the cleaning nozzle (2) is designed as a rotary nozzle is. Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Zylinderkolbenanordnung (7) als Pneumatikzylinder oder Hydraulikzylinder ausgebildet ist.Device according to claim 10 or 11, characterized in that that the cylinder piston assembly (7) as a pneumatic cylinder or hydraulic cylinder is formed. Vorrichtung nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, daß der Spritzwinkel zwischen der betreffenden Walze (1) oder Rolle und der Reinigungsdüse (2) einstellbar, z. B. zwischen 60° und 120° einstellbar ist.Device according to one of claims 10 to 12, characterized characterized in that the spray angle between the concerned Roller (1) or roller and the cleaning nozzle (2) adjustable, e.g. B. is adjustable between 60 ° and 120 °. Vorrichtung nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, daß der Neigungswinkel der jeweiligen Zylinderkolbenanordnung (7) mit der Reinigungsdüse (2) gegenüber der betreffenden Walze (1) oder Rolle einstellbar ist.Device according to one of claims 10 to 13, characterized characterized in that the angle of inclination of the respective Cylinder piston arrangement (7) with the cleaning nozzle (2) adjustable with respect to the roller (1) or roller in question is. Vorrichtung nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, daß mehrere Reinigungsdüsen (2) über die Ballenlänge der betreffenden Walzen (1) oder Rollen traversierend angeordnet sind.Device according to one of claims 10 to 14, characterized characterized in that several cleaning nozzles (2) over the Bale length of the relevant rollers (1) or rollers traversing are arranged. Vorrichtung nach einem der Ansprüche 10 bis 15, dadurch gekennzeichnet, daß eine oder mehrere Reinigungsdüsen (2) oberhalb und/oder unterhalb des betreffenden Metallbandes (M) angeordnet und mit einstellbaren Spritzwinkeln gegen das Metallband (M) gerichtet sind.Device according to one of claims 10 to 15, characterized characterized in that one or more cleaning nozzles (2) above and / or below the metal strip in question (M) arranged and against with adjustable spray angles the metal band (M) are directed. Vorrichtung nach einem der Ansprüche 10 bis 16, dadurch gekennzeichnet, daß die Reinigungsdüse (n) (2) auf das eine Rolle überlaufende Metallband (M) gerichtet sind.Device according to one of claims 10 to 16, characterized characterized in that the cleaning nozzle (s) (2) on one Roll overflowing metal band (M) are directed.
EP99118517A 1998-10-20 1999-09-18 Method and device for cleaning rolls and/or rollers in strip casting installations, rolling mills and/or strip processing lines, in particular skin pass mills or similar sizing mills Expired - Lifetime EP0995504B1 (en)

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DE19848174 1998-10-20
DE19848174A DE19848174A1 (en) 1998-10-20 1998-10-20 Method and device for cleaning rolls and / or rolls in strip casting plants, rolling mills and / or strip processing lines, in particular skin pass mills or the like

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CA2286948C (en) 2004-03-16
US6309472B1 (en) 2001-10-30
DE59907433D1 (en) 2003-11-27
BR9904741A (en) 2000-08-15
JP2000117317A (en) 2000-04-25
EP0995504A3 (en) 2001-05-02
ES2210932T3 (en) 2004-07-01
EP0995504B1 (en) 2003-10-22
ATE252423T1 (en) 2003-11-15
CA2286948A1 (en) 2000-04-20
DE19848174A1 (en) 2000-05-04

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