EP1802406A1 - Method and apparatus for cleaning rolls - Google Patents

Method and apparatus for cleaning rolls

Info

Publication number
EP1802406A1
EP1802406A1 EP05786743A EP05786743A EP1802406A1 EP 1802406 A1 EP1802406 A1 EP 1802406A1 EP 05786743 A EP05786743 A EP 05786743A EP 05786743 A EP05786743 A EP 05786743A EP 1802406 A1 EP1802406 A1 EP 1802406A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
nozzles
cleaning
roller
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
EP05786743A
Other languages
German (de)
French (fr)
Other versions
EP1802406B2 (en
EP1802406B1 (en
Inventor
Andreas Gramer
Peter De Kock
Rolf Brisberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1802406A1 publication Critical patent/EP1802406A1/en
Application granted granted Critical
Publication of EP1802406B1 publication Critical patent/EP1802406B1/en
Publication of EP1802406B2 publication Critical patent/EP1802406B2/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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

  • the invention relates to a method and an apparatus for cleaning rolls and / or rolls, for example, work rolls in a rolling stand, which are used in the production of rolling stock such as strips or slabs, wherein a liquid is heated under high pressure via several nozzles the rollers / the rollers is sprayed on.
  • Rollers and / or rollers are used in many plant areas. This leads to contamination on the surfaces, which must be removed in time intervals or continuously.
  • US Pat. No. 5,460,023 describes a method and an apparatus for cleaning rolls with a multiplicity of nozzles, which are arranged on a nozzle beam.
  • the nozzle beam is moved axially. Each single nozzle passes over the shell of the roller over a predetermined distance.
  • the axial movement The nozzle beam is generated, for example, by a hydraulic cylinder.
  • EP 0 995 504 B1 discloses a process for cleaning rolls and / or rolls in strip casting plants, rolling mills and / or strip processing lines, in particular tempering plants or similar re-rolling plants, for producing and / or treating metal strips, according to which US Pat Rollers and / or rollers are each acted upon by means of at least one cleaning nozzle with uss ⁇ liquid, the distance to the roll shell or Rol ⁇ lenmantel the roll or roll concerned is set or regulated to a predetermined amount and then the cleaning nozzle along the roll or roll with a traversing speed which is set or regulated as a function of the belt speed and / or the strip material and / or the strip surface is regulated.
  • 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 cleaning liquid by means of a movable supply or supply line. Furthermore, mobile wiring is necessary.
  • the Traver ⁇ sier Anthony is elaborately controlled, as is the distance between the nozzles of the rollers to be cleaned.
  • the invention is therefore based on the object of specifying a method and a device for cleaning rollers / rollers, which is simpler in the course or in construction and wherein the cleaning effect is increased and the prevention of surface damage.
  • the invention also relates to a device for carrying out the method. Further embodiments of the device will become apparent from the dependent claims.
  • 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 roll 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 demineralized water consumption of 11 l / min per nozzle and a sequential activation of two x two nozzles above the rolling stock and two x two nozzles below the rolling stock, a total volume flow of approx. 90 l / min results.
  • a cleaning interval is determined by two revolutions of the roller / roller per pair of nozzles, with the nozzle (s) in the nozzle bar just cleaning the second revolution of the roller / roller and then switched off and the nozzles (n + 1) just in the first turn have 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 with a diameter of 440 mm about 3 m.
  • the total length of the rolling stock during cleaning is approximately 37 m.
  • Fig. 1 shows the timing of a Düsenbeetzhausung
  • Fig. 2 is an illustration of a spray pattern.
  • 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 D 1 of the nozzle bar 10 (see FIG. 2) is first opened at a time t 1. After a predetermined period of time, at a time t2, the nozzle D2 arranged to the right of the nozzle D1 additionally becomes open.
  • 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 ball edge 9 of the work roll 5 has been 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 actuated via valves (not shown).

Landscapes

  • 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

Verfahren und Vorrichtung zum Reinigen von WalzenMethod and device for cleaning rollers
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Reinigen von Walzen und / oder Rollen, beispielsweise von Arbeitswalzen in einem Walzge¬ rüst, welche bei der Herstellung von Walzgut wie Bänder oder Brammen ein¬ gesetzt 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, work rolls in a rolling stand, which are used in the production of rolling stock such as strips or slabs, wherein a liquid is heated under high pressure via several nozzles the rollers / the rollers is sprayed on.
Walzen und / oder Rollen werden in vielen Anlagenbereichen eingesetzt. Dabei kommt es an den Oberflächen zu Verschmutzungen, welche in zeitlichen Ab¬ ständen oder kontinuierlich beseitigt werden müssen.Rollers and / or rollers are used in many plant areas. This leads to contamination on the surfaces, which must be removed in time intervals or continuously.
Das Reinigen von Walzen 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 roll rolling mills with a liquid sprayed on the roll under high pressure is known. 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 corresponding installations.
In der EP 0 385 097 A2 wird dargelegt, dass in der Walzwerktechnik das soge¬ nannte Nassdressieren bekannt ist, wo mit Wasser oder wasserähnlichen Zu¬ sätzen ein Gleitfilm zwischen den Arbeitswalzen und den Stützwalzen aufge¬ baut wird. Gleichzeitig sollen damit auch die Walzen sauber gehalten werden.In EP 0 385 097 A2 it is stated that in wet mill technology the 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.
Das US - Patent 5 460 023 beschreibt ein Verfahren und eine Vorrichtung zum Reinigen von Walzen mit einer Vielzahl von Düsen, welche auf einem Düsen¬ balken angeordnet sind. Zur besseren Reinigung der gesamten Oberfläche ei¬ ner Walze wird der Düsenbalken axial bewegt. Dabei überfährt jede einzelne Düse den Mantel der Walze über eine vorgegebene Strecke. Die axiale Bewe- gung des Düsenbalkens wird beispielsweise durch einen Hydraulikzylinder er¬ zeugt.US Pat. No. 5,460,023 describes a method and an apparatus for cleaning rolls with a multiplicity of nozzles, which are arranged on a nozzle beam. For better cleaning of the entire surface ei¬ ner roller, the nozzle beam is moved axially. Each single nozzle passes over the shell of the roller over a predetermined distance. The axial movement The nozzle beam is generated, for example, by a hydraulic cylinder.
Aus der EP O 995 504 B1 ist ein Verfahren zur Reinigung von Walzen und / o- der Rollen in Bandgießanlagen, Walzwerken und / oder Bandprozesslinien, ins- besondere Dressierwerken oder dergleichen Nachwalzwerken, bekannt, zur Erzeugung und / oder Behandlung von Metallbändern, wonach die Walzen und / oder Rollen jeweils mittels zumindest einer Reinigungsdüse mit Reinigungs¬ flüssigkeit beaufschlagt werden, deren Abstand zum Walzenmantel oder Rol¬ lenmantel 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 Bandge¬ schwindigkeit und / oder des Bandmaterials und / oder der Bandoberfläche ein¬ gestellten oder geregelten Traversiergeschwindigkeit hin - und herverfahren wird.EP 0 995 504 B1 discloses a process for cleaning rolls and / or rolls in strip casting plants, rolling mills and / or strip processing lines, in particular tempering plants or similar re-rolling plants, for producing and / or treating metal strips, according to which US Pat Rollers and / or rollers are each acted upon by means of at least one cleaning nozzle with Reinigungs¬ liquid, the distance to the roll shell or Rol¬ lenmantel the roll or roll concerned is set or regulated to a predetermined amount and then the cleaning nozzle along the roll or roll with a traversing speed which is set or regulated as a function of the belt speed and / or the strip material and / or the strip surface is regulated.
Bei den bekannten Anlagen wird eine oder mehrere Düsen entlang der Walze bewegt. D.h. die Düse bzw. die Düsen sind beispielsweise auf einem traversie- renden Fahrwerk mit Schlitten angeordnet, wobei jede Düse mit einer bewegli¬ chen Versorgungs- bzw. Zuführleitung mit Reinigungsflüssigkeit versorgt wer- den muss. Weiterhin sind bewegliche Verkabelungen notwendig. Die Traver¬ siergeschwindigkeit 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 cleaning liquid by means of a movable supply or supply line. Furthermore, mobile wiring is necessary. The Traver¬ siergeschwindigkeit is elaborately controlled, as is the distance between the nozzles of the rollers to be cleaned.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vor- richtung 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 of specifying a method and a device for cleaning rollers / rollers, which is simpler in the course 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 kennzeich- nenden Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen ange¬ geben.This object is achieved according to the invention for a method by the characterizing features of claim 1. Advantageous embodiments of the invention are given in the subclaims.
Die Erfindung betrifft außerdem eine Vorrichtung zur Durchführung des Verfah¬ rens. Weitere Ausgestaltungen der Vorrichtung ergeben sich aus den diesbezügli¬ chen Unteransprüchen.The invention also relates to a device for carrying out the method. Further embodiments of the device will become apparent from the dependent claims.
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 Reini¬ gungsintervall, 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 roll 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 Walzgu¬ tes 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 demineralized water consumption of 11 l / min per nozzle and a sequential activation of two x two nozzles above the rolling stock and two x two nozzles below the rolling stock, a total volume flow of approx. 90 l / min results.
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, with the nozzle (s) in the nozzle bar just cleaning the second revolution of the roller / roller and then switched off and the nozzles (n + 1) just in the first turn have 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 Rei- nigung ergibt etwa 37 m.For example, with a work 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 with 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 / roller. The total length of the rolling stock during cleaning is approximately 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:Show it:
Fig. 1 den zeitlichen Ablauf einer Düsenbeaufschlagung undFig. 1 shows the timing of a Düsenbeaufschlagung and
Fig. 2 eine Darstellung eines Sprühbildes.Fig. 2 is an illustration of a spray pattern.
In Figur 1 ist der zeitliche Ablauf einer Düsenbeaufschlagung bei der Reinigung einer Walze / Rolle dargestellt.In Figure 1, the timing of a Düsenbeaufschlagung is shown in the cleaning of a roller / roller.
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 aufwei¬ sen. Die Arbeitswalze 5 hat eine linke Ballenkante 8 und eine rechte Ballenkan¬ te 9. Im gezeigten Beispiel wird zuerst die linke Düse D1 des Düsenbalkens 10 ( sie- he 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 ab¬ geschaltet und die nächst folgende Düse D3 geöffnet. Dieser Vorgang wird so¬ lange 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.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, the left nozzle D 1 of the nozzle bar 10 (see FIG. 2) is first opened at a time t 1. After a predetermined period of time, at a time t2, the nozzle D2 arranged to the right of the nozzle D1 additionally becomes open. 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 ball edge 9 of the work roll 5 has been 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 Düsen¬ paar 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 actuated via valves (not shown).
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Walzgut / Metallband1 rolling stock / metal strip
2 Breite Metallband2 wide metal band
3 linke Kante3 left edge
4 rechte Kante4 right edge
5 Arbeitswalze5 stripper
6 Randbereich6 edge area
7 Randbereich7 edge area
8 linke Ballenkante8 left bale edge
9 rechte Balllenkante9 right ball steering
10 Düsenbalken10 nozzle bars
11 Sprühbild11 spray picture
12 Sprühbild12 spray picture
13 Bereich Überschneidung13 area overlap
D1 - Dn DüsenD1 - Dn nozzles
t1 - tn Zeitpunkte t1 - tn times

Claims

Patentansprüche claims
1. Verfahren zum Reinigen von Walzen (5) und / oder Rollen (5), bei¬ spielsweise von Arbeitswalzen (5) in einem Walzgerüst, welche bei der Herstellung von Walzgut (1 ) wie Bänder oder Brammen eingesetzt werden, wobei über mehrere Düsen D1 - Dn eine Flüs- sigkeit unter Hochdruck auf die Walzen (5) aufgesprüht wird dadurch gekennzeichnet, dass eine Anzahl von Düsen ( D1 - Dn) stationär in und / oder auf einem Düsenbalken (10) angeordnet werden, jeder Düse (D1 - Dn) mindestens ein Schaltventil zugeordnet wird und eine oder mehrere Düse(n) (D1 - Dn), von einem Ende des Düsenbalkens ausgehend, sequentiell nacheinander ein- und ausgeschaltet wer¬ den.1. A method for cleaning rolls (5) and / or rollers (5), spielsweise of work rolls (5) in a roll stand, which are used in the production of rolling stock (1) such as belts or slabs, wherein a plurality of nozzles D1 - Dn a liquid is sprayed onto the rollers (5) under high pressure, characterized in that a number of nozzles (D1 - Dn) are arranged stationarily in and / or on a nozzle bar (10), each nozzle (D1 - Dn ) is assigned at least one switching valve and one or more nozzle (s) (D1 - Dn), starting from one end of the nozzle bar, sequentially switched on and off wer¬ the.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass jeweils eine Düse (D1 - Dn) eingeschaltet wird.2. The method according to claim 1, characterized in that in each case a nozzle (D1 - Dn) is turned on.
3. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass jeweils zwei benachbarte Düsen (D1 - Dn) eingeschaltet werden.3. The method according to claim 1, characterized in that in each case two adjacent nozzles (D1 - Dn) are turned on.
4. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass nach Erreichen des gegenüberliegenden Endes der Walze / der Rolle das nächste Reinigungsintervall sofort beginnt. 4. The method according to claim 1, characterized in that after reaching the opposite end of the roller / the roller, the next cleaning interval begins immediately.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das nächste Reinigungsintervall zeitlich verzögert durchge¬ führt wird.5. The method according to claim 4, characterized in that the next cleaning interval is carried out delayed in time.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Düsen (D1 - Dn) in Abhängigkeit von der Walzgeschwin¬ digkeit geschaltet werden.6. The method according to any one of claims 1 to 5, characterized in that the nozzles (D1 - Dn) are switched in dependence on the Walzgeschwin¬ speed.
7. Vorrichtung zum Reinigen von Walzen (5) und / oder Rollen (5), beispielsweise von Arbeitswalzen (5) in einem Walzgerüst, welche bei der Herstellung von Walzgut (1 ) wie Bänder oder Brammen eingesetzt sind, wobei mehrere Düsen (D1 - Dn) zum Aufsprühen einer Flüssigkeit unter Hochdruck auf die Walzen (5) angeordnet sind, dadurch gekennzeichnet, dass jeder Düse (D1 - Dn) mindestens ein Ventil zugeordnet ist.7. Device for cleaning rolls (5) and / or rolls (5), for example of work rolls (5) in a roll stand, which are used in the production of rolling stock (1) such as strips or slabs, wherein a plurality of nozzles (D1 - Dn) for spraying a liquid under high pressure on the rollers (5) are arranged, characterized in that each nozzle (D1 - Dn) is associated with at least one valve.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Düse (D1 - Dn) eine Rotationsdüse (D1 - Dn) ist.8. Apparatus according to claim 7, characterized in that the nozzle (D1 - Dn) is a rotary nozzle (D1 - Dn).
9. Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass der Düsenbalken (10) oberhalb des Walzgutes (1 ) angeord¬ net ist.9. Apparatus according to claim 7 or 8, characterized in that the nozzle bar (10) above the rolling stock (1) is angeord¬ net.
10. Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass der Düsenbalken (10) unterhalb des Walzgutes (1 ) angeord¬ net ist.10. Apparatus according to claim 7 or 8, characterized in that that the nozzle bar (10) below the rolling stock (1) is angeord¬ net.
11. Vorrichtung nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass der Düsenbalken (10) eine größere Länge als die Walze / die11. Device according to one of claims 7 to 10, characterized in that the nozzle bar (10) has a greater length than the roller / the
Rolle (5) aufweist..Roller (5) ..
12. Vorrichtung nach einem der Ansprüche 7 bis 11 , dadurch gekennzeichnet, dass die Düsen ( D1 - Dn) in zwei parallelen Reihen versetzt an¬ geordnet sind12. Device according to one of claims 7 to 11, characterized in that the nozzles (D1 - Dn) in two parallel rows are arranged an¬ offset
13. Vorrichtung nach einem der Ansprüche 7 bis 12, dadurch gekennzeichnet, dass die Versorgung der Düsen (D1 - Dn) zentral über eine Flüs¬ sigkeitsdruckleitung erfolgt.13. Device according to one of claims 7 to 12, characterized in that the supply of the nozzles (D1 - Dn) takes place centrally via a liq sigkeitsdruckleitung.
14. Vorrichtung nach einem der Ansprüche 7 bis 13, dadurch gekennzeichnet, dass an dem Düsenbalken (10) Abdeckvorrichtungen befestigt sind.14. Device according to one of claims 7 to 13, characterized in that on the nozzle bar (10) covering devices are attached.
15. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass mehrere Düsen (D1 - Dn), insbesondere nebeneinanderlie¬ gende Düsen (D1 - Dn) mittels ihrer zugeordneten Ventile zeit¬ gleich mit der Flüssigkeitsdruckleitung in offener Verbindung ste¬ hen.15. The apparatus according to claim 13, characterized in that several nozzles (D1 - Dn), in particular nebeneinanderlie¬ ing nozzles (D1 - Dn) by means of their associated valves zeit¬ equal to the liquid pressure line in an open connection hen¬ hen.
16. Vorrichtung nach einem der Ansprüche 7 bis 15, gekennzeichnet durch eine Steuerreinrichtung zum taktweisen bzw. sequentiellen Ansteuern der Ventile nach Maßgabe vorgege¬ bener Reinigungsintervalle.16. Device according to one of claims 7 to 15, characterized by a control device for the cyclical or sequential activation of the valves in accordance with predetermined cleaning intervals.
17. Vorrichtung nach einem der Ansprüche 7 bis 15, gekennzeichnet durch eine Steuereinrichtung zum taktweisen bzw. sequentiellen Ansteuern der Ventile in Abhängigkeit von der Walzgeschwindigkeit. 17. Device according to one of claims 7 to 15, characterized by a control device for the cyclical or sequential activation 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 true EP1802406A1 (en) 2007-07-04
EP1802406B1 EP1802406B1 (en) 2009-07-01
EP1802406B2 EP1802406B2 (en) 2012-06-13

Family

ID=35266847

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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CN102076437B (en) * 2008-06-27 2014-03-19 西门子Vai金属科技有限公司 Device for cleaning a roll of a rolling mill
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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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Also Published As

Publication number Publication date
ATE435074T1 (en) 2009-07-15
DE102004048619A1 (en) 2006-04-13
CN101076412A (en) 2007-11-21
JP4838252B2 (en) 2011-12-14
JP2008515636A (en) 2008-05-15
CN100540166C (en) 2009-09-16
US20080023043A1 (en) 2008-01-31
WO2006037430A1 (en) 2006-04-13
DE502005007635D1 (en) 2009-08-13
RU2006138224A (en) 2008-05-10
RU2333809C2 (en) 2008-09-20
EP1802406B2 (en) 2012-06-13
EP1802406B1 (en) 2009-07-01

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