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EP1802406B2 - Method and apparatus for cleaning rolls - Google Patents

Method and apparatus for cleaning rolls Download PDF

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Publication number
EP1802406B2
EP1802406B2 EP05786743A EP05786743A EP1802406B2 EP 1802406 B2 EP1802406 B2 EP 1802406B2 EP 05786743 A EP05786743 A EP 05786743A EP 05786743 A EP05786743 A EP 05786743A EP 1802406 B2 EP1802406 B2 EP 1802406B2
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EP
European Patent Office
Prior art keywords
nozzle
nozzles
rolls
cleaning
rollers
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.)
Not-in-force
Application number
EP05786743A
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German (de)
French (fr)
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EP1802406B1 (en
EP1802406A1 (en
Inventor
Andreas Gramer
Peter De Kock
Rolf Brisberger
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SMS Siemag AG
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SMS Siemag AG
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Application filed by SMS Siemag AG filed Critical SMS Siemag AG
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Publication of EP1802406B1 publication Critical patent/EP1802406B1/en
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Classifications

    • 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

  • Rollers and / or rollers are used in many plant areas. It comes to the surfaces to contamination, which must be removed at intervals or continuously.
  • US Pat. No. 5,460,023 describes a method and apparatus for cleaning rolls with a plurality of nozzles arranged on a nozzle bar. For better cleaning of the entire surface of a roller of the nozzle bar is moved axially. Each single nozzle passes over the shell of the roller over a predetermined distance. The axial movement of the nozzle bar is generated for example by a hydraulic cylinder.
  • From the EP 0 995 504 B1 is a method for cleaning rolls and / or rolls in strip casting, rolling mills and / or strip processing lines, in particular tempering or similar Nachwalzwerken known, for the production and / or treatment of metal strips, after which the rollers and / or rollers by means of at least one cleaning nozzle with Cleaning liquid are applied, the distance to the roll shell or roller shell of the respective roller or roller is set or regulated to a predetermined amount and then the cleaning nozzle along the respective roller or roller with a function of the belt speed and / or the belt material and / or the Belt surface adjusted or regulated traversing speed.
  • one or more nozzles is moved along the roller. That the nozzle or the nozzles are arranged, for example, on a traversing chassis with carriages, each nozzle having to be supplied with a mobile supply or supply line with cleaning fluid. Furthermore, mobile wiring is necessary.
  • the traversing speed is elaborately controlled, as is the distance between the nozzles and the rollers to be cleaned.
  • the invention also relates to a device for carrying out the method. Further embodiments of the device will become apparent from the relevant subclaims.
  • the decisive advantage of the method according to the invention is that no mechanical movement takes place in the roll longitudinal direction and therefore no cable towing devices for the supply lines are necessary.
  • the electrical system is reduced to the on and off of the nozzle bar and the switching on / off of the individual nozzles.
  • a 100% loading of the roll or roller circumference takes place at a cleaning interval, so that no dirt spirals occur.
  • Each cleaning interval starts at the same roller or roller end; the time interval for each cleaning is the same.
  • a nozzle rotation angle of 17 °. and a circular area with 60 mm diameter is the necessary distance to the roll shell around 200 mm. If 50 mm diameter is used effectively, then with a max. Bandwidth of 2100 mm per nozzle bar 42 nozzles to consider. With an interconnection of two nozzles via a valve 21 switching valves are required. The arrangement of the nozzles may have an offset in a preferred embodiment. With a VE water consumption of 11 l / min per nozzle and a sequential control of two x two nozzles above the rolling stock and two x two nozzles below the rolling stock results in a total volume flow of about 90 l / min.
  • a cleaning interval is determined by two revolutions of the roller / roller per pair of nozzles, wherein the nozzles (n) in the nozzle bar are just cleaning the second revolution of the roller / roller and then turned off and the nozzles (n + 1) are just in the first revolution started to clean the roller / roller. If the nozzles (n) are switched off, the nozzles (n + 2) are switched on.
  • the length of the rolling stock is about 4 m per nozzle sequence, with a diameter of 560 mm about 3.5 m and a diameter of 440 mm about 3 m.
  • the total length of the rolling stock during the cleaning results in about 37 m.
  • FIG. 1 the timing of a Düsenbeetzung when cleaning a roller / roller is shown.
  • a rolling stock for example a metal strip 1, having a width 2 has a left edge 3 and a right edge 4.
  • a work roll 5 (see FIG. 2 ) has a length which is greater than the width of the metal strip, so that the edge regions 6, 7 of the work roll have no contact with the metal strip 1.
  • the work roll 5 has a left bale edge 8 and a right bale edge 9.
  • the left nozzle D1 of the nozzle bar 10 is opened at a time t1.
  • the nozzle D2 arranged to the right of the nozzle D1 is additionally opened at a time t2.
  • the nozzle D1 is switched off at a time t3 and the next following nozzle D3 is opened. This process is repeated until the right bale edge 9 of the work roll 5 is reached.
  • the next cleaning interval can be done directly afterwards by opening the nozzle D1 and then the nozzle D2.
  • the next cleaning interval takes place with a time delay.
  • This delay can be automatic and have a same time period.
  • FIG. 2 shows a nozzle bar 10 with ten nozzles (D1 - D10).
  • the spray pattern 11 of the nozzle D1 overlaps with the spray pattern 12 of the nozzle D2 in a region 13.
  • the following nozzles show the same overlap.
  • adjacent nozzles D1, D2, for example, offset in the nozzle bar 10 are used.
  • Each nozzle D1 or each nozzle pair D1, D2 is controlled via valves (not shown).

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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)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

With a method of cleaning cylinders ( 5 ) and/or rolls ( 5 ), e.g., working rolls ( 5 ) in a rolling stand, which are used for producing a rolled stock ( 1 ) such as strips or slabs, wherein a liquid is sprayed onto the cylinders ( 5 ) at high pressure through several nozzles D 1 -Dn, a number of nozzles (D 1 -Dn) are stationary arranged in and/or on a nozzle beam ( 10 ), at least one on-off valve is associated with each nozzle (D 1 -Dn), and one or several nozzle(s) (D 1 -Dn) are sequentially switched on and off one after another starting from one end of the nozzle beam. The invention further relates to a corresponding apparatus.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Reinigen von Walzen und / oder Rollen, beispielsweise von Arbeitswalzen in einem Walzgerüst, welche bei der Herstellung von Walzgut wie Bänder oder Brammen eingesetzt werden, wobei über mehrere Düsen eine Flüssigkeit unter Hochdruck auf die Walzen / die Rollen aufgesprüht wird.The invention relates to a method and an apparatus for cleaning rolls and / or rolls, for example of work rolls in a roll stand, which are used in the production of rolling stock such as strips or slabs, wherein a plurality of nozzles, a liquid under high pressure on the rollers / the Rolls is sprayed on.

Walzen und / oder Rollen werden in vielen Anlagenbereichen eingesetzt. Dabei kommt es an den Oberflächen zu Verschmutzungen, welche in zeitlichen Abständen oder kontinuierlich beseitigt werden müssen.Rollers and / or rollers are used in many plant areas. It comes to the surfaces to contamination, which must be removed at intervals or continuously.

Das Reinigen von Walzen in Walzwerken mit einer unter hohem Druck auf die Walze aufgesprühten Flüssigkeit ist bekannt. Die JP - 05 069028 A , JP - 06 344 005 A , JP - 10 058 002 A , JP - 6 285 516 , JP - 09 262 607 A , JP - 08 155 509 A , JP 08 174 005 A , JP 07 068 301 A , JP - 05 042 309 A , JP - 05 317 907 A , JP - 05 337 522 A und JP - 58 199 604 A zeigen entsprechende Anlagen.The cleaning of rollers in rolling mills with a high pressure on the roller sprayed liquid is known. The JP - 05 069028 A . JP - 06 344 005 A . JP - 10 058 002 A . JP-6 285 516 . JP - 09 262 607 A . JP - 08 155 509 A . JP 08 174 005 A . JP 07 068 301 A . JP - 05 042 309 A . JP - 05 317 907 A . JP - 05 337 522 A and JP - 58 199 604 A show appropriate facilities.

In der EP 0 385 097 A2 wird dargelegt, dass in der Walzwerktechnik das sogenannte Nassdressieren bekannt ist, wo mit Wasser oder wasserähnlichen Zusätzen ein Gleitfilm zwischen den Arbeitswalzen und den Stützwalzen aufgebaut wird. Gleichzeitig sollen damit auch die Walzen sauber gehalten werden.In the EP 0 385 097 A2 It is stated that in rolling mill technology, so-called wet-dressing is known, where with water or water-like additives, a lubricating film is built up between the work rolls and the back-up rolls. At the same time, the rollers should also be kept clean.

US - A 5 460 023 beschreibt ein Verfahren und eine Vorrichtung zum Reinigen von Walzen mit einer Vielzahl von Düsen, welche auf einem Düsenbalken angeordnet sind. Zur besseren Reinigung der gesamten Oberfläche einer Walze wird der Düsenbalken axial bewegt. Dabei überfährt jede einzelne Düse den Mantel der Walze über eine vorgegebene Strecke. Die axiale Bewegung des Düsenbalkens wird beispielsweise durch einen Hydraulikzylinder erzeugt. US Pat. No. 5,460,023 describes a method and apparatus for cleaning rolls with a plurality of nozzles arranged on a nozzle bar. For better cleaning of the entire surface of a roller of the nozzle bar is moved axially. Each single nozzle passes over the shell of the roller over a predetermined distance. The axial movement of the nozzle bar is generated for example by a hydraulic cylinder.

Aus der EP 0 995 504 B1 ist ein Verfahren zur Reinigung von Walzen und / oder Rollen in Bandgießanlagen, Walzwerken und / oder Bandprozesslinien, insbesondere Dressierwerken oder dergleichen Nachwalzwerken, bekannt, 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 eingestellten oder geregelten Traversiergeschwindigkeit hin - und herverfahren wird.From the EP 0 995 504 B1 is a method for cleaning rolls and / or rolls in strip casting, rolling mills and / or strip processing lines, in particular tempering or similar Nachwalzwerken known, for the production and / or treatment of metal strips, after which the rollers and / or rollers by means of at least one cleaning nozzle with Cleaning liquid are applied, the distance to the roll shell or roller shell of the respective roller or roller is set or regulated to a predetermined amount and then the cleaning nozzle along the respective roller or roller with a function of the belt speed and / or the belt material and / or the Belt surface adjusted or regulated traversing speed.

Bei den bekannten Anlagen wird eine oder mehrere Düsen entlang der Walze bewegt. D.h. die Düse bzw. die Düsen sind beispielsweise auf einem traversierenden Fahrwerk mit Schlitten angeordnet, wobei jede Düse mit einer beweglichen Versorgungs- bzw. Zuführleitung mit Reinigungsflüssigkeit versorgt werden muss. Weiterhin sind bewegliche Verkabelungen notwendig. Die Traversiergeschwindigkeit wird aufwändig geregelt, ebenso der Abstand der Düsen von den zu reinigenden Walzen.In the known systems, one or more nozzles is moved along the roller. That the nozzle or the nozzles are arranged, for example, on a traversing chassis with carriages, each nozzle having to be supplied with a mobile supply or supply line with cleaning fluid. Furthermore, mobile wiring is necessary. The traversing speed is elaborately controlled, as is the distance between the nozzles and the rollers to be cleaned.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum Reinigen von Walzen / Rollen anzugeben, welches einfacher im Ablauf bzw. im Aufbau ist und wobei die Reinigungswirkung erhöht wird sowie die Vermeidung von Oberflächenbeschädigungen.The invention is therefore based on the object to provide a method and an apparatus for cleaning rollers / rollers, which is simpler in the process or in construction and wherein the cleaning effect is increased and the prevention of surface damage.

Diese Aufgabe wird erfindungsgemäß für ein Verfahren durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved for a method by the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

Die Erfindung betrifft außerdem eine Vorrichtung zur Durchführung des Verfahrens.
Weitere Ausgestaltungen der Vorrichtung ergeben sich aus den diesbezüglichen Unteransprüchen.The invention also relates to a device for carrying out the method.
Further embodiments of the device will become apparent from the relevant subclaims.

Der entscheidende Vorteil des erfindungsgemäßen Verfahrens liegt darin, dass keine mechanische Bewegung in Walzenlängsrichtung erfolgt und daher auch keine Kabelschleppvorrichtungen für die Versorgungsleitungen notwendig sind. Die Elektrik reduziert sich auf das An- und Abstellen des Düsenbalkens und dem Zu- / Abschalten der einzelnen Düsen. Bei Reinigungsbetrieb erfolgt eine 100%-tige Beaufschlagung des Walzen- oder Rollenumfanges bei einem Reinigungsintervall, so dass keine Schmutzspiralen auftreten.
Jedes Reinigungsintervall beginnt am gleichen Walzen- oder Rollenende, der Zeitabstand zu jeder Reinigung ist gleich.The decisive advantage of the method according to the invention is that no mechanical movement takes place in the roll longitudinal direction and therefore no cable towing devices for the supply lines are necessary. The electrical system is reduced to the on and off of the nozzle bar and the switching on / off of the individual nozzles. During cleaning operation, a 100% loading of the roll or roller circumference takes place at a cleaning interval, so that no dirt spirals occur.
Each cleaning interval starts at the same roller or roller end; the time interval for each cleaning is the same.

Bei einem Rotationswinkel der Düse von 17 DEG. und einer Kreisfläche mit 60 mm Durchmesser beträgt der notwendige Abstand zum Walzenmantel rund 200 mm. Werden 50 mm Durchmesser effektiv genutzt, so sind bei einer max. Bandbreite von 2100 mm pro Düsenbalken 42 Düsen zu berücksichtigen. Bei einer Zusammenschaltung von jeweils zwei Düsen über ein Ventil werden 21 Schaltventile benötigt. Die Anordnung der Düsen kann in einer bevorzugten Ausführung einen Versatz aufweisen. Bei einem VE - Wasserverbrauch von 11 l/min pro Düse und einer sequentiellen Ansteuerung von jeweils zwei x zwei Düsen oberhalb des Walzgutes und zwei x zwei Düsen unterhalb des Walzgutes ergibt sich ein Gesamtvolumenstrom von ca. 90 l/min.At a nozzle rotation angle of 17 °. and a circular area with 60 mm diameter is the necessary distance to the roll shell around 200 mm. If 50 mm diameter is used effectively, then with a max. Bandwidth of 2100 mm per nozzle bar 42 nozzles to consider. With an interconnection of two nozzles via a valve 21 switching valves are required. The arrangement of the nozzles may have an offset in a preferred embodiment. With a VE water consumption of 11 l / min per nozzle and a sequential control of two x two nozzles above the rolling stock and two x two nozzles below the rolling stock results in a total volume flow of about 90 l / min.

Ein Reinigungsintervall wird festgelegt durch zwei Umdrehungen der Walze /der Rolle je Düsenpaar, wobei die Düsen (n) im Düsenbalken gerade die zweite Umdrehung der Walze / der Rolle reinigen und danach abgeschaltet werden und die Düsen (n+1) gerade in der ersten Umdrehung begonnen haben die Walze / die Rolle zu reinigen. Werden die Düsen (n) abgeschaltet, werden die Düsen (n+2) zugeschaltet.A cleaning interval is determined by two revolutions of the roller / roller per pair of nozzles, wherein the nozzles (n) in the nozzle bar are just cleaning the second revolution of the roller / roller and then turned off and the nozzles (n + 1) are just in the first revolution started to clean the roller / roller. If the nozzles (n) are switched off, the nozzles (n + 2) are switched on.

Beispielsweise beträgt bei einem Arbeitswalzendurchmesser von 620 mm die Länge des Walzgutes etwa 4 m pro Düsensequenz, bei einem Durchmesser von 560 mm etwa 3,5 m und bei einem Durchmesser von 440 mm etwa 3 m.
Für eine mittlere Walzgeschwindigkeit von 100 m/min in einem Dressiergerüst bedeutet dies eine Arbeitszeit von etwa 2 sec. / Düsenpaar und für die gesamte Walze 21 +1 sec./ Walze. Die gesamte Länge des Walzgutes während der Reinigung ergibt etwa 37 m.For example, with a working roll diameter of 620 mm, the length of the rolling stock is about 4 m per nozzle sequence, with a diameter of 560 mm about 3.5 m and a diameter of 440 mm about 3 m.
For a mean rolling speed of 100 m / min in a skin pass mill, this means a working time of about 2 sec. / Nozzle pair and for the entire roller 21 + 1 sec./roll. The total length of the rolling stock during the cleaning results in about 37 m.

Ausführungsbeispiele der Erfindung werden anhand von schematischen Zeichnungen näher beschrieben.Embodiments of the invention will be described in more detail with reference to schematic drawings.

Es zeigen:

Fig. 1
den zeitlichen Ablauf einer Düsenbeaufschlagung und
Fig. 2
eine Darstellung eines Sprühbildes.
Show it:
Fig. 1
the timing of a Düsenbeaufschlagung and
Fig. 2
a representation of a spray pattern.

In Figur 1 ist der zeitliche Ablauf einer Düsenbeaufschlagung bei der Reinigung einer Walze / Rolle dargestellt.
Ein Walzgut, beispielsweise ein Metallband 1, mit einer Breite 2 weist eine linke Kante 3 und eine rechte Kante 4 auf. Eine Arbeitswalze 5 ( siehe Figur 2) weist eine Länge auf, welche größer ist als die Breite des Metallbandes, so dass die Randbereiche 6, 7 der Arbeitswalze keinen Kontakt zum Metallband 1 aufweisen. Die Arbeitswalze 5 hat eine linke Ballenkante 8 und eine rechte Ballenkante 9.
Im gezeigten Beispiel wird zuerst die linke Düse D1 des Düsenbalkens 10 ( siehe Figur 2 ) bei einer Zeit t1 geöffnet. Nach einem vorgegebenen Zeitraum wird bei einer Zeit t2 zusätzlich die rechts neben der Düse D1 angeordnete Düse D2 geöffnet. Nach einem weiteren Zeitraum wird bei einer Zeit t3 die Düse D1 abgeschaltet und die nächst folgende Düse D3 geöffnet. Dieser Vorgang wird solange wiederholt, bis die rechte Ballenkante 9 der Arbeitswalze 5 erreicht ist. Das nächste Reinigungsintervall kann direkt anschließend erfolgen, indem die Düse D1 geöffnet wird und daran anschließend die Düse D2.In FIG. 1 the timing of a Düsenbeaufschlagung when cleaning a roller / roller is shown.
A rolling stock, for example a metal strip 1, having a width 2 has a left edge 3 and a right edge 4. A work roll 5 (see FIG. 2 ) has a length which is greater than the width of the metal strip, so that the edge regions 6, 7 of the work roll have no contact with the metal strip 1. The work roll 5 has a left bale edge 8 and a right bale edge 9.
In the example shown, first, the left nozzle D1 of the nozzle bar 10 (see FIG. 2 ) is opened at a time t1. After a predetermined period of time, the nozzle D2 arranged to the right of the nozzle D1 is additionally opened at a time t2. After a further period of time, the nozzle D1 is switched off at a time t3 and the next following nozzle D3 is opened. This process is repeated until the right bale edge 9 of the work roll 5 is reached. The next cleaning interval can be done directly afterwards by opening the nozzle D1 and then the nozzle D2.

Je nach Verschmutzungsgrad der Walzen / der Rollen 5 erfolgt das nächste Reinigungsintervall mit einer zeitlichen Verzögerung. Diese Verzögerung kann automatisch erfolgen und einen gleichen Zeitraum aufweisen. Es ist aber auch denkbar, die Reinigungsintervalle zusätzlich oder immer manuell zu starten.Depending on the degree of soiling of the rollers / rollers 5, the next cleaning interval takes place with a time delay. This delay can be automatic and have a same time period. However, it is also conceivable to start the cleaning intervals additionally or always manually.

Figur 2 zeigt einen Düsenbalken 10 mit zehn Düsen (D1 - D10). Das Sprühbild 11 der Düse D1 überschneidet sich mit dem Sprühbild 12 der Düse D2 in einem Bereich 13. Die nachfolgenden Düsen zeigen die gleiche Überschneidung. Zu besseren Ausbildung der Überschneidungen, welche den Reinigungsgrad der Walzen / Rollen bestimmen, werden benachbarte Düsen D1, D2 beispielsweise versetzt in den Düsenbalken 10 eingesetzt. Jede Düse D1 bzw. jedes Düsenpaar D1, D2 wird über Ventile ( nicht dargestellt ) angesteuert. FIG. 2 shows a nozzle bar 10 with ten nozzles (D1 - D10). The spray pattern 11 of the nozzle D1 overlaps with the spray pattern 12 of the nozzle D2 in a region 13. The following nozzles show the same overlap. For better formation of the overlaps, which determine the degree of cleaning of the rollers / rollers, adjacent nozzles D1, D2, for example, offset in the nozzle bar 10 are used. Each nozzle D1 or each nozzle pair D1, D2 is controlled via valves (not shown).

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Walzgut / MetallbandRolled metal / metal strip
22
Breite MetallbandWide metal band
33
linke Kanteleft edge
44
rechte Kanteright edge
55
ArbeitswalzeStripper
66
Randbereichborder area
77
Randbereichborder area
88th
linke Ballenkanteleft bale edge
99
rechte Balllenkanteright ball steering
1010
Düsenbalkennozzle beam
1111
Sprühbildspray pattern
1212
Sprühbildspray pattern
1313
Bereich ÜberschneidungArea overlap
D1 - DnD1 - Dn
Düsenjet
t1 - tnt1 - tn
Zeitpunktetimings

Claims (17)

  1. Method of cleaning rolls and/or rollers, for example working rolls (5) in a roll stand, which are used in the production of rolled stock (1) such as strips or slabs, wherein a liquid is sprayed under high pressure onto the rolls and/or rollers by way of several nozzles (D1 - Dn), characterised in that a number of nozzles (D1 - Dn) is arranged in stationary position in and/or on a nozzle bar (10), at least one switching valve is associated with each nozzle (D1 - Dn) and a nozzle (D1 - Dn) or several nozzles (D1 - Dn) is or are switched on and switched off sequentially in succession starting from one end of the nozzle bar.
  2. Method according to claim 1, characterised in that in each instance one nozzle (D1 - Dn) is switched on.
  3. Method according to claim 1, characterised in that in each instance two adjacent nozzles (D1 - Dn) are switched on.
  4. Method according to claim 1, characterised in that after reaching the opposite end of the roll and/or roller the next cleaning interval begins immediately.
  5. Method according to claim 4, characterised in that the next cleaning interval is performed with a delay in time.
  6. Method according to any one of claims 1 to 5, characterised in that the nozzles (D1 - Dn) are switched in dependence on the rolling speed.
  7. Device for cleaning rolls and/or rollers, for example working rolls (5) in a roll stand, which are used in the production of rolled stock (1) such as strips or slabs, wherein several nozzles (D1 - Dn) for spraying a liquid under high pressure onto the rolls and/or rollers are arranged, for performance of the method according to any of claims 1 to 6, characterised in that a plurality of nozzles (D1 - Dn) is arranged in stationary position in and/or on a nozzle bar (10) and that at least one valve is associated with each nozzle (D1 - Dn).
  8. Device according to claim 7, characterised in that the nozzle (D1 - Dn) is a rotary nozzle.
  9. Device according to claim 7 or 8, characterised in that the nozzle bar (10) is arranged above the rolling stock (1).
  10. Device according to claim 7 or 8, characterised in that the nozzle bar (10) is arranged below the rolling stock (1).
  11. Device according to any one of claims 7 to 10, characterised in that the nozzle bar (10) has a greater length than the roll or the roller (5).
  12. Device according to any one of claims 7 to 11, characterised in that the nozzles (D1 - Dn) are arrange offset in two parallel rows.
  13. Device according to any one of claims 7 to 12, characterised in that supply of the nozzles (D1 - Dn) is carried out centrally by way of a liquid pressure duct.
  14. Device according to any one of claims 7 to 13, characterised in that cover devices are fastened to the nozzle bars (10).
  15. Device according to claim 13, characterised in that several nozzles (D1 - Dn), particularly nozzles (D1 - Dn) disposed adjacent to one another, are disposed in open connection with the liquid pressure duct by means of their associated valves.
  16. Device according to any one of claims 7 to 15, characterised by a control device for cyclic or sequential drive control of the valves in accordance with predetermined cleaning intervals.
  17. Device according to any one of claims 7 to 15, characterised by a control device for cyclic or sequential drive control of the valves in dependence on the rolling speed.
EP05786743A 2004-10-06 2005-09-12 Method and apparatus for cleaning rolls Not-in-force EP1802406B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004048619A DE102004048619A1 (en) 2004-10-06 2004-10-06 Method and device for cleaning rollers
PCT/EP2005/009780 WO2006037430A1 (en) 2004-10-06 2005-09-12 Method and apparatus for cleaning rolls

Publications (3)

Publication Number Publication Date
EP1802406A1 EP1802406A1 (en) 2007-07-04
EP1802406B1 EP1802406B1 (en) 2009-07-01
EP1802406B2 true EP1802406B2 (en) 2012-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05786743A Not-in-force EP1802406B2 (en) 2004-10-06 2005-09-12 Method and apparatus for cleaning rolls

Country Status (8)

Country Link
US (1) US20080023043A1 (en)
EP (1) EP1802406B2 (en)
JP (1) JP4838252B2 (en)
CN (1) CN100540166C (en)
AT (1) ATE435074T1 (en)
DE (2) DE102004048619A1 (en)
RU (1) RU2333809C2 (en)
WO (1) WO2006037430A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2009156598A1 (en) * 2008-06-27 2009-12-30 Siemens Vai Metals Technologies Sas Device for cleaning a roll of a rolling mill
CN102358031A (en) * 2011-07-25 2012-02-22 湖北富思特材料科技集团有限公司 Method for cleaning longitudinal stretching machine
CN102343339B (en) * 2011-10-19 2013-08-14 首钢总公司 Method and device for eliminating spiral roll marks on steel strip surface finishing machine
CN102615059B (en) * 2012-03-27 2014-03-05 宝山钢铁股份有限公司 Method for cleaning high-pressure water gun for leveler

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EP1802406B1 (en) 2009-07-01
CN100540166C (en) 2009-09-16
DE502005007635D1 (en) 2009-08-13
US20080023043A1 (en) 2008-01-31
JP2008515636A (en) 2008-05-15
EP1802406A1 (en) 2007-07-04
WO2006037430A1 (en) 2006-04-13
RU2006138224A (en) 2008-05-10
CN101076412A (en) 2007-11-21
DE102004048619A1 (en) 2006-04-13
ATE435074T1 (en) 2009-07-15
JP4838252B2 (en) 2011-12-14
RU2333809C2 (en) 2008-09-20

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