EP0995504B1 - 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 PDFInfo
- Publication number
- EP0995504B1 EP0995504B1 EP99118517A EP99118517A EP0995504B1 EP 0995504 B1 EP0995504 B1 EP 0995504B1 EP 99118517 A EP99118517 A EP 99118517A EP 99118517 A EP99118517 A EP 99118517A EP 0995504 B1 EP0995504 B1 EP 0995504B1
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- European Patent Office
- Prior art keywords
- cleaning
- rollers
- roller
- rolls
- strip
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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 similar rolling mills, for production and / or Treatment of metal strips, after which the rollers and / or Roll each with at least one cleaning nozzle Cleaning liquid and the Cleaning nozzle along the roller or roller in question going back and forth.
- metal straps also includes steel straps.
- JP 05 042309 A makes it part of the prior art the technology, a cleaning nozzle with adjustable distance to position against a roller. This measure may in itself a certain improvement in the cleaning effect enable because of this different Diameters of the roll or roll concerned will be carried.
- the invention has for its object 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 diameter as well as on different strip materials and belt speeds. Moreover a device is to be created to carry out this cleaning method is particularly suitable and is characterized by simple and functional design.
- 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.
- the cleaning fluid can be anti-corrosive Additives 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 arrangement can be attached if the piston rod is a stationary Takes 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 relevant roll shell 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, z. B. is adjustable between 60 ° and 120 ° the cleaning nozzle taking into account the respective Diameter ratios optimally 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.
- FIG. 1 In the figures is a device for cleaning rollers 1 in skin pass mills in the course of treating 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 applied.
- 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 mounted.
- the distance A between the cleaning nozzles 2 and the roller jacket 8 of the relevant rollers 1 is adjusted or controllable. 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 the traversing speed of the reciprocated Cleaning nozzles 2 depending on the belt speed and / or the strip material and / or the strip surface set 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)
- Cleaning In General (AREA)
- Metal Rolling (AREA)
Abstract
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 similar rolling mills, for production and / or Treatment of metal strips, after which the rollers and / or Roll each with at least one cleaning nozzle Cleaning liquid and the Cleaning nozzle along the roller or roller in question going back and forth. - Within the scope of the invention "metal straps" also includes steel straps.
Durch die US 5 460 023 ist ein derartiges Verfahren vorbeschrieben. Daneben wird die Möglichkeit angesprochen, eine Vielzahl von Reinigungsdüsen mit Hilfe einer Kolben/Zylinderanordnung periodisch in Axialrichtung einer zugehörigen Walze hin- und herzuverfahren. Die bekannte Vorgehensweise kann nicht in allen Punkten überzeugen. So besteht bei besonders schnell durchlaufenden Metallbändern die Gefahr, einzelne Bereiche nur unzureichend zu erfassen. Auch ist die Reinigungswirkung begrenzt, wenn besonders raue Bandoberflächen zu behandeln sind.Such a method is known from US Pat. No. 5,460,023 described above. In addition, the possibility of a variety of cleaning nozzles using a piston / cylinder arrangement periodically in the axial direction associated roller back and forth. The well-known Approach cannot convince in all points. So exists with particularly fast moving metal strips the risk of insufficient coverage of individual areas. The cleaning effect is also limited, if special rough belt surfaces are to be treated.
Durch die JP 05 042309 A gehört es zum vorbekannten Stand der Technik, eine Reinigungsdüse mit einstellbarem Abstand gegenüber einer Walze zu positionieren. Diese Maßnahme mag für sich genommen eine gewisse Verbesserung der Reinigungswirkung ermöglichen, weil hierdurch unterschiedlichen Durchmessern der betreffenden Walze oder Rolle Rechnung getragen wird.JP 05 042309 A makes it part of the prior art the technology, a cleaning nozzle with adjustable distance to position against a roller. This measure may in itself a certain improvement in the cleaning effect enable because of this different Diameters of the roll or roll concerned will be carried.
Daneben ist es aus der Praxis 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, Vlieskissen 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. In addition, it is known from practice, for example To integrate galvanizing lines through skin pass rollers which gives the galvanized metal strip certain surface characteristics imprinted and the material properties be changed in a targeted manner. There is a risk that Zinc particles only partially adhering to the belt surface transferred to the work and backup rolls during rolling become. The zinc particles remain on the roll shell stick and create an impression with every turn the belt surface. Impressions on the metal band are considered Defects and the metal strip in question - in Depending on its intended use - to make something useless. It becomes unsaleable Production Committee. - To reduce the risk of sticking Particles on the rollers of skin pass mills reduce, it is known to wet such skin pass rolling mills to drive. There are cleaning devices in the form of brushes, Fleece rolls and fleece pillows known, which either are as wide as the widest metal band or over that Traverse the bale length of the rollers concerned. The Cleaning effect of brushes, fleece rolls, fleece pillows or the like is limited and often insufficient. - Furthermore, one knows a 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.
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.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 well-known The cleaning effect can only be implemented for certain measures Set the roller diameter correctly once. Become used ground rollers, the cleaning effect 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 caster 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 rolls or rolls, namely stretching rolls cling and to growths and band surface defects to lead. - The invention seeks to remedy this.
Der Erfindung liegt die Aufgabe zugrunde, 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 has for its object 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 diameter as well as on different strip materials and belt speeds. Moreover a device is to be created to carry out this cleaning method is particularly suitable and is characterized by simple and functional design.
Zur Lösung dieser Aufgabe ist Gegenstand der Erfindung ein 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 Metallbändern, wonach
- die Walzen und/oder Rollen jeweils mittels zumindest einer Reinigungsdüse mit Reinigungsflüssigkeit beaufschlagt werden, deren Abstand zum Walzenmantel oder Rollenmantel der betreffenden Walze oder Rolle auf ein jeweils vorgegebenes Maß eingestellt oder geregelt wird, und wonach
- die Reinigungsdüse entlang der betreffenden Walze oder Rolle mit einer in Abhängigkeit von der Bandgeschwindigkeit und/oder des Bandmaterials und/oder der Bandoberfläche eingestellter oder geregelter Traversiergeschwindigkeit hin- und herverfahren wird.
- the rollers and / or rollers are each acted upon with cleaning liquid by means of at least one cleaning nozzle, the distance of which from the roller shell or roller shell of the roller or roller in question is set or regulated to a respectively predetermined dimension, and then
- the cleaning nozzle is moved back and forth along the relevant roller or roller with a traversing speed which is set or regulated as a function of the belt speed and / or the belt material and / or the belt surface.
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 die Traversiergeschwindigkeit der hin- und herbewegten Reinigungsdüse in Abhängigkeit von der Bandgeschwindigkeit und/oder des Bandmaterials und/oder der Bandoberfläche eingestellt oder geregelt wird. Insgesamt wird eine besonders effiziente Reinigungswirkung erzielt.These measures of the invention have the consequence that even with a changing distance between the roller jacket or roller jacket a defined setting of the concerned cleaning nozzle can be made, and also by means of a regulation. Because according to the teaching of Invention is with a variable-distance cleaning nozzle worked. This makes it easy to adjust the Cleaning nozzle or their distance to different Roll or roll diameter possible. Hence the Cleaning effect optimized. This is especially true taking into account the fact that the traversing speed the reciprocating cleaning nozzle in Dependence on the belt speed and / or the belt material and / or the belt surface or is regulated. Overall, being a particularly efficient one Cleaning effect achieved.
Weitere erfindungswesentliche Maßnahmen sind im folgenden aufgeführt. So kann der Abstand zwischen dem Walzenmantel oder Rollenmantel durch Nachfahren der Reinigungsdüse konstantgehalten 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 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 Wasser verwendet. Außerdem können der Reinigungsflüssigkeit korrosionshemmende Zusätze beigegeben werden.According to a proposal of the invention it is intended that the metal strip in question before contact with rollers or rollers on its top and / or underside by means of one or more cleaning nozzles charged with cleaning fluid and is cleaned hydromechanically. 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 demineralized or salt-free water is used. In addition, the cleaning fluid can be anti-corrosive Additives 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 arrangement can be attached if the piston rod is a stationary Takes 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 relevant roll shell 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, z. B. is adjustable between 60 ° and 120 ° the cleaning nozzle taking into account the respective Diameter ratios optimally 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 under high pressure must be adequately supported.
Im folgenden 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 den Gegenstand nach Fig. 1 ohne die Stützwalzen.
- Fig. 1
- a skin pass mill with work rolls and backup rolls in a schematic side view and
- Fig. 2
- a plan view of the object of FIG. 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
wird die Traversiergeschwindigkeit der hin- und herbewegten
Reinigungsdüsen 2 in Abhängigkeit von der Bandgeschwindigkeit
und/oder des Bandmaterials und/oder der Bandoberfläche
eingestellt oder geregelt.In the figures is a device for cleaning rollers
1 in skin pass mills in the course of treating 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
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
Claims (16)
- A method of cleaning rolls (1; 1a, 1b) and/or rollers in strip casting installations, rolling mills and/or strip processing lines, particularly in dressing mills or sizing mills of that kind, for the production and/or treatment of metal strip (M), according to whichthe rolls (1; 1a, 1b) and/or rollers are each acted upon by cleaning liquid by means of at least one cleaning nozzle (2), the distance (A) of which to the roll surface or roller surface of the respective roll (1; 1a, 1b) or roller is set or controlled at a magnitude which is predetermined in each case, and according to whichthe cleaning nozzle (2) is moved to and fro along the respective roll (1; 1a, 1b) or roller at a velocity of traverse which is set or controlled depending on the strip velocity and/or on the strip material and/or on the strip surface.
- A method according to claim 1, characterised in that the distance (A) to the roll surface or roller surface is held constant by the cleaning nozzle (2) executing a following movement.
- A method according to claim 1 or 2, characterised in that the distance (A) between the roll surface or roller surface and the cleaning nozzle (2) is maintained at less than 100 mm.
- A method according to any one of claims 1 to 3, characterised in that before it contacts the rolls or rollers the respective metal strip (M) is acted upon by cleaning liquid on its top side and/or underside by means of one or more cleaning nozzles (2) and is cleaned hydromechanically.
- A method according to any one of claims 1 to 4, characterised in that the respective metal strip (M) is acted upon by cleaning liquid when it passes over a roller.
- A method according to any one of claims 1 to 5, characterised in that cleaning is effected at a liquid pressure of at least 100 bar.
- A method according to any one of claims 1 to 6, characterised in that demineralised or salt-free water is used as a cleaning liquid.
- A method according to any one of claims 1 to 7, characterised in that corrosion-inhibiting additives are added to the cleaning liquid.
- An apparatus for carrying out the method according to any one of claims 1 to 8, comprising rolls (1; 1a, 1b) and/or rollers for producing and/or treating metal strip (M), and comprising at least one cleaning nozzle (2) which is associated with the respective rolls (1; 1a, 1b) or rollers, whereinthe cleaning nozzle (2) is disposed on running gear (3) which longitudinally traverses the rolls (1; 1a, 1b) or rollers and which comprises carriages (4) and corresponding traversing rails (5), wherein in addition a controller or regulating device is provided for the velocity of traverse, and whereinthe cleaning nozzle (2) is fixed to the piston rod (6) (or the other way round) of a controllable or adjustable cylinder-and-piston arrangement (7) which is directed towards the roll (1; 1a, 1b) or roller to be cleaned.
- An apparatus according to claim 9, characterised in that the cleaning nozzle (2) is formed as a rotating nozzle.
- An apparatus according to claim 9 or 10, characterised in that the cylinder-and-piston arrangement (7) is formed as a pneumatic cylinder or hydraulic cylinder.
- An apparatus according to any one of claims 9 to 11, characterised in that the spray angle between the respective roll (1) or roller and the cleaning nozzle (2) is adjustable, e.g. between 60° and 120°.
- An apparatus according to any one of claims 9 to 12, characterised in that the angle of inclination of the respective cylinder-and-piston arrangement (7) comprising the cleaning nozzle (2) can be adjusted in relation to the respective roll (1) or roller.
- An apparatus according to any one of claims 9 to 13, characterised in that there is a plurality of cleaning nozzles (2) which are disposed so that they can traverse the barrel length of the respective rolls (1) or rollers.
- An apparatus according to any one of claims 9 to 14, characterised in that one or more cleaning nozzles (2) is/are disposed above and/or below the respective metal strip (M) and are directed towards the metal strip (M) with adjustable spray angles.
- An apparatus according to any one of claims 9 to 15, characterised in that the cleaning nozzle (n) (2) is directed on to the metal strip (M) when the latter passes over a roller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0995504A2 EP0995504A2 (en) | 2000-04-26 |
| EP0995504A3 EP0995504A3 (en) | 2001-05-02 |
| EP0995504B1 true EP0995504B1 (en) | 2003-10-22 |
Family
ID=7884966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99118517A Expired - Lifetime EP0995504B1 (en) | 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 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6309472B1 (en) |
| EP (1) | EP0995504B1 (en) |
| JP (1) | JP2000117317A (en) |
| AT (1) | ATE252423T1 (en) |
| BR (1) | BR9904741A (en) |
| CA (1) | CA2286948C (en) |
| DE (2) | DE19848174A1 (en) |
| ES (1) | ES2210932T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013105399A1 (en) * | 2013-05-27 | 2014-11-27 | Hydro Aluminium Rolled Products Gmbh | Rolling apparatus and method for conditioning a roll surface |
| CN110538879A (en) * | 2019-08-30 | 2019-12-06 | 攀钢集团攀枝花钢钒有限公司 | control method for automatic roller washing of cold-rolled roller |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1170066A1 (en) | 2000-07-05 | 2002-01-09 | Förnsel, Peter | Process and apparatus for cleaning rollers and bands |
| EP1304174A1 (en) * | 2001-10-19 | 2003-04-23 | Aluminium Norf GmbH | Method for reconditioning rolls |
| DE102004006629B3 (en) * | 2004-02-10 | 2005-11-17 | Sundwig Gmbh | Device for cleaning the surface of cylindrical bodies, such as rollers or rollers |
| DE102004048619A1 (en) † | 2004-10-06 | 2006-04-13 | Sms Demag Ag | Method and device for cleaning rollers |
| DE102005008939A1 (en) * | 2005-02-26 | 2006-09-21 | Sms Demag Ag | Method and device for reeling a metal strip |
| FR2915118B1 (en) * | 2007-04-18 | 2009-06-05 | Siemens Vai Metals Tech Sas | METHOD FOR CLEANING ROLLER CYLINDER AND DEVICE THEREFOR |
| US20090107526A1 (en) * | 2007-10-31 | 2009-04-30 | Zhuge Jun | Co2 system for polymer film cleaning |
| KR100994484B1 (en) | 2008-04-08 | 2010-11-16 | 정철호 | Automatic cleaning device and method for strip mill |
| US20110168215A1 (en) * | 2008-06-27 | 2011-07-14 | Siemens Vai Metals Technologies Sas | Device for cleaning a roll of a rolling mill |
| KR101180162B1 (en) | 2009-11-12 | 2012-09-05 | 김재석 | Apparatus for Removing Foreign Material on Strip Moving Roll |
| DE102010033753A1 (en) * | 2010-06-04 | 2011-12-08 | Sms Siemag Ag | Device for cleaning and drying rolling stands |
| JP5433794B2 (en) * | 2011-05-16 | 2014-03-05 | 新日鉄住金エンジニアリング株式会社 | Rolling roll cleaning apparatus and cleaning method |
| CN102284520A (en) * | 2011-08-18 | 2011-12-21 | 中冶南方工程技术有限公司 | Water mist leveling-spraying device in cold-rolling wet leveling production |
| ITPC20120001A1 (en) * | 2012-01-19 | 2013-07-20 | Nordmeccanica Spa | DEVICE AND METHOD FOR CLEANING ROLLERS OF A COATING GROUP |
| CN104550092A (en) * | 2014-12-29 | 2015-04-29 | 一重集团大连设计研究院有限公司 | Roller cleaning device |
| CN105921531B (en) * | 2016-04-30 | 2018-04-17 | 中冶南方工程技术有限公司 | Scrubbing unit nozzle angle automatic adjusting mechanism |
| EP3546080A1 (en) * | 2018-03-27 | 2019-10-02 | Hydro Aluminium Rolled Products GmbH | Rolling purification method with rolling purification device |
| CN109926382A (en) * | 2019-04-30 | 2019-06-25 | 黄石山力兴冶薄板有限公司 | A kind of clear roller system of wet polishing machine |
| CN111530800B (en) * | 2020-05-07 | 2022-04-12 | 内蒙古警通标牌制作有限责任公司 | Motor vehicle license plate word wiping machine |
| CN112143999A (en) * | 2020-09-28 | 2020-12-29 | 安徽广达金属科技有限公司 | Cleaning device for working roller of galvanized strip steel production line and use method thereof |
| CN118437768B (en) * | 2024-07-05 | 2024-09-03 | 溧阳市兴达机械有限公司 | Metal roller surface cleaning and maintaining device and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2234153A (en) * | 1939-02-16 | 1941-03-04 | United Eng Foundry Co | Method and apparatus for manufacturing metallic strip |
| JPS53127354A (en) * | 1977-04-13 | 1978-11-07 | Nippon Packaging Kk | Clean cold rolling method |
| US4178652A (en) * | 1978-04-24 | 1979-12-18 | Arvey Corporation | Apparatus for cleaning roller surfaces |
| US4400961A (en) * | 1981-07-15 | 1983-08-30 | Schaming Edward J | Apparatus for removing liquid coolant from metal strips in a rolling mill |
| DE3716902A1 (en) * | 1987-05-20 | 1988-12-15 | Kleinewefers Gmbh | DEVICE FOR CLEANING A ROLL ON CALENDARS, SMOOTHING WORKS AND THE LIKE |
| US4893642A (en) * | 1989-01-11 | 1990-01-16 | Grapar Corporation | Production line part deburring apparatus |
| US5212975A (en) * | 1991-05-13 | 1993-05-25 | International Rolling Mill Consultants, Inc. | Method and apparatus for cooling rolling mill rolls and flat rolled products |
| JPH0542309A (en) * | 1991-08-07 | 1993-02-23 | Sumitomo Metal Ind Ltd | Method and device for grinding rolling roll |
| US5460023A (en) * | 1991-09-13 | 1995-10-24 | International Rolling Mill Consultants Inc. | Roll surface restoration system and method |
| CA2128398C (en) * | 1994-07-19 | 2007-02-06 | John Sulzer | Process and apparatus for casting metal strip and injector used therefor |
| DE4437829A1 (en) * | 1994-10-14 | 1996-04-18 | Mannesmann Ag | Method and device for adjusting the cleaning rollers for cleaning rollers |
| DE19621837C1 (en) * | 1996-05-31 | 1997-09-11 | Thyssen Stahl Ag | Method for treatment of fire-coated thin sheet |
-
1998
- 1998-10-20 DE DE19848174A patent/DE19848174A1/en not_active Withdrawn
-
1999
- 1999-09-18 EP EP99118517A patent/EP0995504B1/en not_active Expired - Lifetime
- 1999-09-18 DE DE59907433T patent/DE59907433D1/en not_active Expired - Fee Related
- 1999-09-18 AT AT99118517T patent/ATE252423T1/en not_active IP Right Cessation
- 1999-09-18 ES ES99118517T patent/ES2210932T3/en not_active Expired - Lifetime
- 1999-10-06 US US09/413,360 patent/US6309472B1/en not_active Expired - Fee Related
- 1999-10-19 JP JP11297180A patent/JP2000117317A/en active Pending
- 1999-10-19 BR BR9904741-1A patent/BR9904741A/en not_active IP Right Cessation
- 1999-10-20 CA CA002286948A patent/CA2286948C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013105399A1 (en) * | 2013-05-27 | 2014-11-27 | Hydro Aluminium Rolled Products Gmbh | Rolling apparatus and method for conditioning a roll surface |
| CN110538879A (en) * | 2019-08-30 | 2019-12-06 | 攀钢集团攀枝花钢钒有限公司 | control method for automatic roller washing of cold-rolled roller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000117317A (en) | 2000-04-25 |
| DE59907433D1 (en) | 2003-11-27 |
| ATE252423T1 (en) | 2003-11-15 |
| BR9904741A (en) | 2000-08-15 |
| CA2286948C (en) | 2004-03-16 |
| ES2210932T3 (en) | 2004-07-01 |
| EP0995504A2 (en) | 2000-04-26 |
| EP0995504A3 (en) | 2001-05-02 |
| US6309472B1 (en) | 2001-10-30 |
| DE19848174A1 (en) | 2000-05-04 |
| CA2286948A1 (en) | 2000-04-20 |
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