EP1492634B1 - Device for cooling rolling stock within the cooling stretch of a rolling mill - Google Patents

Device for cooling rolling stock within the cooling stretch of a rolling mill Download PDF

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Publication number
EP1492634B1
EP1492634B1 EP03745757A EP03745757A EP1492634B1 EP 1492634 B1 EP1492634 B1 EP 1492634B1 EP 03745757 A EP03745757 A EP 03745757A EP 03745757 A EP03745757 A EP 03745757A EP 1492634 B1 EP1492634 B1 EP 1492634B1
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EP
European Patent Office
Prior art keywords
spray
cooling
arrangement according
water
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.)
Expired - Lifetime
Application number
EP03745757A
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German (de)
French (fr)
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EP1492634A1 (en
Inventor
Ulrich Cramer
Martin Braun
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
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Filing date
Publication date
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Publication of EP1492634A1 publication Critical patent/EP1492634A1/en
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Publication of EP1492634B1 publication Critical patent/EP1492634B1/en
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
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/008—Rollers for roller conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/12—Arrangement or installation of roller tables in relation to a roll stand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the invention relates to a device for cooling of rolling stock within the cooling section of a rolling mill, in particular for a hot strip rolling mill, are arranged below the rolling stock between rollers of a roller table fixedly arranged water spraying devices and above the rolling stock held on support beams spray bar, wherein the support lever of a parallel the longitudinal axis of the roller table extending, tubular, rotatably driven and water-fed swivel tube are supported, with a central water supply pipe and a control and regulating device with associated switching valves for connecting and disconnecting the cooling water.
  • Devices for cooling rolling form an integral part of each rolling mill; they have gained in importance since, by influencing the transformation of the steel certain metallurgical conditions, for example. Grain sizes, and thus a high load capacity of the rolled product are sought.
  • the EP 0 178 281 B1 describes a device for cooling a metal product with flat top and bottom, in particular a sheet which is moved on a roller conveyor, wherein coolant is conveyed to the bottom in the gaps formed between the rollers of the roller conveyor and above the rolling stock a distance variable further arrangement provided is.
  • coolant is conveyed to the bottom in the gaps formed between the rollers of the roller conveyor and above the rolling stock a distance variable further arrangement provided is.
  • the JP-A-06212278 Although discloses adevorrichting for rolled strip having between rollers of a roller table fixedly arranged Wasserspritzvoriquesen, by means of which the rolled strip can be cooled from the bottom, measures to maximize the cooling capacity and to shorten the roller table are not stimulated here.
  • the object of the invention is to continue to raise the achievable maximum cooling capacity, but at the same time cut the length of the roller table used for this purpose, so that a compact design high cooling performance is achieved.
  • Fig. 1 a converted to a compact cooling roller conveyor 1 is shown. Slightly below the gap between the rollers of this roller table 1, lower chilled beams 2 can be seen. Over the roller table spray bar 3 are shown, which are completed down by spray tubes, interchangeable spray tube plates 4 completed. On the spray bar 3 pivotally splash guard plates 5 are hinged, which should protect the environment from water spray and ensure that used spray water runs down. It can be seen still Band Installationslineale 6, which serve the alignment and central guide in the roller table run up hot strips.
  • the cooling beam 2 which is closed at both ends by eg. For cleaning removable flaps 7.
  • the cooling beam 2 is fed through a cooling water pipe 8 via a manifold 9.
  • the rollers 10 of the roller table 1 are provided with long, slender pins 11, which carry the rollers in bearings and transmit the drive from the roller table motors 12.
  • the rollers 10 are provided in a very narrow pitch and in the formed between them narrow column still attack the spray tubes 13 of the chilled beam 2 a. But so able to drain between the rollers 10 only small quantities of cooling water; the more room for draining them is offered between the long, slender pin 11 of the rollers 10.
  • the tape guide rulers 6 are shown again: The ruler shown on the left is retracted for maximum bandwidths or a rest position, thus freeing the area of the pins 11 of the rollers for the outflow of water from the beginning.
  • the ruler shown on the right is extremely far advanced for a minimum bandwidth and thus largely covers the drain path formed between the pin 11 of the rollers 10. In practical operations you will therefore set the tape guide rulers 6 according to the width of the incoming belt when entering the band, and after the completion of both the cooling turn on and pull the tape guide rulers in their rest position of the maximum opening.
  • a rotatable pivot tube 15 is mounted, which is fed in the axial direction of cooling water.
  • tubular support arms 16 are connected, in which the cooling water of the pivot tube 15 is able to enter.
  • Two parallel spray bars 3 are attached to these support arms and are supplied by means of manifolds with cooling water via the tubular support levers 16.
  • the free ends carry the hinged splash guard plates 5.
  • Each of the support lever is supported by a hydraulic cylinder 17 and can by means of the same from its shown in Fig. 2 working position in the 3, to perform repairs and inspections, or to remove ribbons from the roller table.
  • FIG. 4 A view of the band guide rulers 6 of the roller table 1 is shown in Fig. 4.
  • the two adjusting devices 18 for the guide rulers 6 have been placed on a small bandwidth, so that the rulers are on the lateral surfaces of the rollers 10 itself:
  • the guide rulers 6 are opened maximally after running in of the tape, so that the between the pin 11th the rollers 10 formed larger intermediate spaces can derive the output of the spray bar 3 and optionally from the chilled beam 2 cooling water assets.
  • the structure of the spray bar 3 is explained with reference to FIG. 5, which shows enlarged cross-section.
  • FIG. 5 shows enlarged cross-section.
  • the free, the cooling water receiving orifice portion 21 of the spray tubes 20 is widened funnel-shaped to accommodate the incoming water without throttling can.
  • the outlet area 22, however, is either cylindrical or to the extent required to achieve the desired injection speed, usually only slightly, retracted.
  • the spray tubes 20 may be mounted in the spray tube plate 4, or, if a change or replacement due to wear, but also for reasons of the use of other dimensions is necessary to be interchangeable.
  • FIG. 6 again shows one of the lower cooling bars 2 in the side view. To recognize are again the cleaning or inspection opening closing removable caps 7 and the connection of the cooling water pipe 8 of FIGS. 2 and 3 serving manifolds 9.
  • the space formed between two adjacent rollers 10 of the roller table 1 is very narrow, so that the supply of cooling water from below and the outflow of cooling water from above are critical in such a compact arrangement.
  • This problem is solved here by arranging the actual body of the cooling bar 2 below the mid-horizontal of the rollers 10 with simultaneous pear-shaped formation of the cross section of this cooling beam in the direction streamline body.
  • a holding strip 23 At the top of this is a holding strip 23, the bores of which receive the spray tubes 13, which are closed at the top by a nozzle 24 which determines their spray pattern.
  • Leksabspritzungen 25 and 26 the arrangement for compact cooling inlet and outlet side is supplemented by pivoting and switchable Leksabspritzungen 25 and 26. These ensure that the standing at the plentiful cooling water task on the tape top cooling water does not flow into the field of technological instruments or can be transported by the band and there would cause interference or falsification of the results.
  • Leksabspritzungen 25 and 26 consist of hinged flaps 27 and 28 with nozzle tubes 29 and 30.
  • the tape inlet flaps are swung up to ensure trouble-free tape passage.
  • the flaps 27, 28 lowered for operation, and the nozzle tubes 29, 30 are turned on.
  • the nozzles are located after lowering the flaps and nozzle tubes close to the wall surface, so that an effective jet effect is ensured.
  • the flaps protect the nozzles and, in the case of strip running disturbances, for example looping, can escape upwards without substantial damage to the devices for longitudinal spraying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Nozzles (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Kühlen von Walzgut innerhalb der Kühlstrecke einer Walzanlage, insbesondere für eine Warmbandwalzanlage, bei der unterhalb des Walzgutes zwischen Rollen eines Rollganges fest angeordnete Wasserspritzvorrichtungen sowie oberhalb des Walzgutes an Traghebeln gehaltene Spritzbalken angeordnet sind, wobei die Traghebel von einem sich parallel der Längsachse des Rollganges erstreckenden, rohrförmigen, drehantreibbaren und wassergespeisten Schwenkrohr getragen sind, mit einem zentralen Wasserzuführungsrohr sowie einer Steuer- und Regelvorrichtung mit zugeordneten Schaltventilen zum Zu- und Abschalten des Kühlwassers.The invention relates to a device for cooling of rolling stock within the cooling section of a rolling mill, in particular for a hot strip rolling mill, are arranged below the rolling stock between rollers of a roller table fixedly arranged water spraying devices and above the rolling stock held on support beams spray bar, wherein the support lever of a parallel the longitudinal axis of the roller table extending, tubular, rotatably driven and water-fed swivel tube are supported, with a central water supply pipe and a control and regulating device with associated switching valves for connecting and disconnecting the cooling water.

Vorrichtungen zum Kühlen von Walzgut bilden einen festen Bestandteil jeder Walzanlage; sie haben erhöht an Bedeutung gewonnen, seitdem durch Beeinflussung der Umwandlung des Stahls bestimmte metallurgische Zustände, bspw. Korngrößen, und verbunden damit eine hohe Belastbarkeit des Walzproduktes angestrebt werden.Devices for cooling rolling form an integral part of each rolling mill; they have gained in importance since, by influencing the transformation of the steel certain metallurgical conditions, for example. Grain sizes, and thus a high load capacity of the rolled product are sought.

Bspw. die EP 0 178 281 B1 beschreibt eine Einrichtung zur Kühlung eines Metallproduktes mit flacher Ober- und Unterseite, insbesondere eines Bleches, das auf einem Rollenförderer bewegt wird, wobei Kühlmittel für die Unterseite in den zwischen den Rollen des Rollenförderers gebildeten Lücken gefördert wird und oberhalb des Walzgutes eine abstandsveränderliche weitere Anordnung vorgesehen ist. Zu bemängeln ist bei dieser bekannten Kühleinrichtung ein vergleichsweise hoher Aufwand an Material und insbesondere Montagearbeit vor Ort und die dabei entstehenden relativ hohen Baukosten.For example. the EP 0 178 281 B1 describes a device for cooling a metal product with flat top and bottom, in particular a sheet which is moved on a roller conveyor, wherein coolant is conveyed to the bottom in the gaps formed between the rollers of the roller conveyor and above the rolling stock a distance variable further arrangement provided is. To complain about in this known cooling device, a comparatively high amount of material and in particular assembly work on site and the resulting relatively high construction costs.

Es wurde in der gattungsbildenden DE-A-198 43 038.8 eine Vorrichtung zum Kühlen von Walzgut beschrieben, bei der Kühlwasser von oben abgebenden Spritzbalken schwenkbar gehalten sind und zur Vereinfachung des Betriebes teilweise durch Gegengewichte entlastet sind. Durch Zusammenfassung der Kühlwasserzuleitungen lassen sich die entstehenden Montagekosten wünschenswert beeinflussen.It was in the generic DE-A-198 43 038.8 Described an apparatus for cooling rolling stock, are kept pivotally in the cooling water from above dispensing spray bars and are partially relieved for the sake of operation by counterweights. By combining the cooling water supply lines, the resulting assembly costs can be influenced desirable.

Die JP-A-06212278 offenbart zwar eine Kühlvorrichting für Walzband, die zwischen Rollen eines Rollganges fest angeordnete Wasserspritzvorrichtungen aufweist, mittels derer das Walzband von der Unterseite gekühlt werden kann, Maßnahmen zur Maximierung der Kühlleistung und zur Verkürzung des Rollgangs werden hier jedoch nicht angeregt.The JP-A-06212278 Although discloses a Kühlvorrichting for rolled strip having between rollers of a roller table fixedly arranged Wasserspritzvorrichtungen, by means of which the rolled strip can be cooled from the bottom, measures to maximize the cooling capacity and to shorten the roller table are not stimulated here.

Aufgabe der Erfindung ist es, die erzielbare maximale Kühlleistung weiterhin anzuheben, jedoch gleichzeitig die hierfür in Anspruch genommene Länge des Rollganges zu kürzen, so daß eine Kompaktbauweise hoher Kühlleistung erzielt wird.The object of the invention is to continue to raise the achievable maximum cooling capacity, but at the same time cut the length of the roller table used for this purpose, so that a compact design high cooling performance is achieved.

Gelöst wird diese Aufgabe mit den im Patentanspruch 1 genannten Merkmalen. Weiterbildungen der erfindungsgemäßen Vorrichtung zum Kühlen ergeben sich aus den Unteransprüchen.This object is achieved with the features mentioned in claim 1. Further developments of the device according to the invention for cooling result from the dependent claims.

Im einzelnen sind die Merkmale der Erfindung anhand der Beschreibung eines in Zeichnungen dargestellten Ausführungsbeispieles erläutert.
Es zeigen hierbei:

Figur 1
einen Längsschnitt durch die Kompaktausführung eines Kühlsystemes mit Transportrollgang, Bandführung und Bandlängsabspritzung,
Figur 2
einen Querschnitt durch die Kühlanordnung nach Fig. 1 mit Transportrollgang, Bandführung und Schwenkeinrichtung für die oberen Spritzbalken,
Figur 3
geringfügig verkleinert einen der Fig. 2 entsprechenden Querschnitt durch den Rollgang mit angehobenen Spritzbalken,
Figur 4
eine Aufsicht auf einen Abschnitt des Rollganges mit einer Anordnung zur Bandführung,
Figur 5
schematisch im Vertikalschnitt einen Spritzbalken mit Spritzrohrplatte und Spritzrohren,
Figur 6
einen Vertikal-Längsschnitt durch einen der unteren Kühlbalken, und
Figur 7
einen schematischen Querschnitt durch zwei benachbarte Rollen eines Rollgangs mit zwischen bzw. unter ihnen vorgesehenem unteren Kühlbalken mit Spritzröhrchen.
In detail, the features of the invention with reference to the description of an embodiment shown in drawings are explained.
It show here:
FIG. 1
a longitudinal section through the compact design of a cooling system with Transport aisle, tape guide and tape longitudinal spray,
FIG. 2
a cross section through the cooling arrangement of Figure 1 with Transportlaufgang, tape guide and pivoting device for the upper spray bars.
FIG. 3
slightly reduces one of the Fig. 2 corresponding cross section through the roller table with raised spray bars,
FIG. 4
a plan view of a portion of the roller table with a tape guide arrangement,
FIG. 5
schematically in vertical section a spray bar with spray tube plate and spray tubes,
FIG. 6
a vertical longitudinal section through one of the lower chilled beam, and
FIG. 7
a schematic cross section through two adjacent rollers of a roller table with between or below them provided lower cooling bar with spray tube.

In der Fig. 1 ist ein zu einer kompakten Kühlvorrichtung umgestalteter Rollgang 1 gezeigt. Etwas unterhalb des Zwischenraumes der Rollen dieses Rollganges 1 sind untere Kühlbalken 2 erkenntlich. Über dem Rollgang sind Spritzbalken 3 gezeigt, die nach unten durch Spritzrohre aufweisende, austauschbare Spritzrohrplatten 4 abgeschlossen sind. An den Spritzbalken 3 sind schwenkbar Spritzschutzplatten 5 angelenkt, welche das Umfeld vor Spritzwasser schützen sollen und dafür Sorge tragen, daß gebrauchtes Spritzwasser nach unten abläuft. Erkenntlich sind noch Bandführungslineale 6, die der Ausrichtung und mittigen Führung in den Rollgang auflaufender Warmbänder dienen.In Fig. 1 a converted to a compact cooling roller conveyor 1 is shown. Slightly below the gap between the rollers of this roller table 1, lower chilled beams 2 can be seen. Over the roller table spray bar 3 are shown, which are completed down by spray tubes, interchangeable spray tube plates 4 completed. On the spray bar 3 pivotally splash guard plates 5 are hinged, which should protect the environment from water spray and ensure that used spray water runs down. It can be seen still Bandführungslineale 6, which serve the alignment and central guide in the roller table run up hot strips.

Die Anordnung der Kühlbalken, Spritzbalken sowie der Bandführungslineale ist im einzelnen in der im größeren Maßstabe gehaltenen Figur 2 erkenntlich, die einen Querschnitt durch den Rollgang 1 in der Mittelebene eines unteren Kühlbalkens darstellt.The arrangement of the chilled beam, spray bar and the tape guide rulers is recognizable in detail in the held on a larger scale Figure 2, which represents a cross section through the roller table 1 in the center plane of a lower cooling beam.

Erkenntlich ist der Kühlbalken 2, der beidendig durch bspw. zur Reinigung abnehmbarer Klappen 7 geschlossen ist. Gespeist wird der Kühlbalken 2 durch ein Kühlwasserrohr 8 über einen Krümmer 9. Die Rollen 10 des Rollgangs 1 sind mit langen, schlanken Zapfen 11 ausgestattet, welche die Rollen in Lagern tragen und den Antrieb von den Rollgangsmotoren 12 übermitteln. Die Rollen 10 sind in sehr enger Teilung vorgesehen und in die zwischen ihnen gebildeten engen Spalte greifen noch die Spritzröhrchen 13 der Kühlbalken 2 ein. Damit aber vermögen zwischen den Rollen 10 nur geringe Kühlwassermengen abzufließen; um so mehr Raum zum Abfließen wird ihnen zwischen den langen, schlanken Zapfen 11 der Rollen 10 geboten.It can be seen that the cooling beam 2, which is closed at both ends by eg. For cleaning removable flaps 7. The cooling beam 2 is fed through a cooling water pipe 8 via a manifold 9. The rollers 10 of the roller table 1 are provided with long, slender pins 11, which carry the rollers in bearings and transmit the drive from the roller table motors 12. The rollers 10 are provided in a very narrow pitch and in the formed between them narrow column still attack the spray tubes 13 of the chilled beam 2 a. But so able to drain between the rollers 10 only small quantities of cooling water; the more room for draining them is offered between the long, slender pin 11 of the rollers 10.

In diesem Zusammenhang sind auch die Bandführungslineale 6 nochmals dargestellt: Das links dargestellte Lineal ist für maximale Bandbreiten oder eine Ruhestellung zurückgezogen und gibt damit das Gebiet der Zapfen 11 der Walzen zum Abfluß von Wasser von Anfang an frei. Das rechts dargestellte Lineal dagegen ist für eine minimale Bandbreite extrem weit vorgeschoben und deckt damit den zwischen den Zapfen 11 der Rollen 10 gebildeten Ablaufweg weitgehend ab. Im praktischen Betriebe wird man daher beim Einlaufen des Bandes die Bandführungslineale 6 entsprechend der Breite des einlaufenden Bandes einstellen, und nach erfolgtem Einlauf sowohl die Kühlung einschalten als auch die Bandführungslineale in ihre Ruhestellung der maximalen Öffnung zurückziehen.In this context, the tape guide rulers 6 are shown again: The ruler shown on the left is retracted for maximum bandwidths or a rest position, thus freeing the area of the pins 11 of the rollers for the outflow of water from the beginning. The ruler shown on the right, however, is extremely far advanced for a minimum bandwidth and thus largely covers the drain path formed between the pin 11 of the rollers 10. In practical operations you will therefore set the tape guide rulers 6 according to the width of the incoming belt when entering the band, and after the completion of both the cooling turn on and pull the tape guide rulers in their rest position of the maximum opening.

Gleichzeitig wird auch die Unterbringung der oberen Spritzbalken 3 gezeigt. Mittels eines Bockes 14 oder mehrerer ist ein drehbares Schwenkrohr 15 gelagert, das in axialer Richtung von Kühlwasser gespeist ist. An dieses Schwenkrohr 15 sind rohrförmige Tragarme 16 angeschlossen, in die das Kühlwasser des Schwenkrohres 15 einzutreten vermag. An diesen Tragarmen sind jeweils zwei parallele Spritzbalken 3 befestigt und werden durch Krümmer mit Kühlwasser über die rohrförmigen Traghebel 16 versorgt. Auf der Unterseite sind die Spritzbalken 3 durch auswechselbare und anpaßbare Spritzrohrplatten 4 ergänzt, und die freien Enden tragen die angelenkten Spritzschutzplatten 5. Jeder der Traghebel wird durch einen Hydraulikzylinder 17 abgestützt und kann mittels desselben aus seiner in Fig. 2 dargestellten Arbeitsstellung in die in Fig. 3 gezeigte Stellung aufwärts geschwenkt werden, um Reparaturen und Inspektionen auszuführen oder aber dem Rollgang Bänder entnehmen zu können.At the same time the accommodation of the upper spray bar 3 is shown. By means of a block 14 or more a rotatable pivot tube 15 is mounted, which is fed in the axial direction of cooling water. At this pivot tube 15 tubular support arms 16 are connected, in which the cooling water of the pivot tube 15 is able to enter. Two parallel spray bars 3 are attached to these support arms and are supplied by means of manifolds with cooling water via the tubular support levers 16. On the underside of the spray bars 3 are supplemented by interchangeable and adaptable spray tube plates 4, and the free ends carry the hinged splash guard plates 5. Each of the support lever is supported by a hydraulic cylinder 17 and can by means of the same from its shown in Fig. 2 working position in the 3, to perform repairs and inspections, or to remove ribbons from the roller table.

Eine Aufsicht auf die Bandführungslineale 6 des Rollganges 1 ist in Fig. 4 dargestellt. Die beiden Anstellvorrichtungen 18 für die Führungslineale 6 haben auf eine geringe Bandbreite abgestellt, so daß die Lineale über den Mantelflächen der Rollen 10 selbst stehen: Wie bereits erläutert, werden nach Einlaufen des Bandes die Führungslineale 6 maximal geöffnet, so daß die zwischen den Zapfen 11 der Rollen 10 gebildeten größeren Zwischenräume das von den Spritzbalken 3 sowie gegebenenfalls von den Kühlbalken 2 abgegebene Kühlwasser abzuleiten vermögen.A view of the band guide rulers 6 of the roller table 1 is shown in Fig. 4. The two adjusting devices 18 for the guide rulers 6 have been placed on a small bandwidth, so that the rulers are on the lateral surfaces of the rollers 10 itself: As already explained, the guide rulers 6 are opened maximally after running in of the tape, so that the between the pin 11th the rollers 10 formed larger intermediate spaces can derive the output of the spray bar 3 and optionally from the chilled beam 2 cooling water assets.

Der Aufbau der Spritzbalken 3 ist anhand der Fig. 5 erläutert, die vergrößert einen Querschnitt wiedergibt. Gezeigt ist eine den Spritzbalken 3 untergreifende Spritzrohrplatte 4 sowie eine Anzahl von Spritzrohren 20. Wie die vergrößerten, herausgezogenen Darstellungen zeigen, ist der freie, das Kühlwasser aufnehmende Mündungsbereich 21 der Spritzrohre 20 trichterförmig erweitert, um das einströmende Wasser ohne Drosselung aufnehmen zu können. Der Auslaufbereich 22 dagegen ist entweder zylindrisch oder auf das zum Erreichen der gewünschten Spritzgeschwindigkeit benötigte Maß, meist nur geringförmig, eingezogen. Es sind zur Befestigung mehrere Möglichkeiten gegeben: Die Spritzrohre 20 können in der Spritzrohrplatte 4 befestigt sein, oder aber, falls ein Wechsel oder Austausch aus Verschleißgründen, aber auch aus Gründen des Einsatzes anderer Abmessungen notwendig wird, austauschbar sein.The structure of the spray bar 3 is explained with reference to FIG. 5, which shows enlarged cross-section. As the enlarged, drawn-out illustrations show, the free, the cooling water receiving orifice portion 21 of the spray tubes 20 is widened funnel-shaped to accommodate the incoming water without throttling can. The outlet area 22, however, is either cylindrical or to the extent required to achieve the desired injection speed, usually only slightly, retracted. There are several possibilities for attachment: The spray tubes 20 may be mounted in the spray tube plate 4, or, if a change or replacement due to wear, but also for reasons of the use of other dimensions is necessary to be interchangeable.

In Fig. 6 ist nochmals einer der unteren Kühlbalken 2 in der Seitenansicht gezeigt. Zu erkennen sind wieder die die Reinigungs- bzw. Inspektionsöffnung verschließenden abnehmbaren Kappen 7 sowie der zum Anschluß des Kühlwasserrohres 8 der Fign. 2 und 3 dienende Krümmer 9.FIG. 6 again shows one of the lower cooling bars 2 in the side view. To recognize are again the cleaning or inspection opening closing removable caps 7 and the connection of the cooling water pipe 8 of FIGS. 2 and 3 serving manifolds 9.

Wie aber insbesondere Fig. 7 zeigt, ist der zwischen zwei benachbarten Rollen 10 des Rollgangs 1 gebildete Zwischenraum sehr schmal, so daß die Zufuhr des Kühlwassers von unten sowie der Abfluß des ablaufenden Kühlwassers von oben bei einer solch kompakten Anordnung kritisch werden. Gelöst ist hier dieses Problem durch Anordnung des eigentlichen Körpers des Kühlbalkens 2 unterhalb der Mittelhorizontalen der Rollen 10 unter gleichzeitiger birnenförmige Ausbildung des Querschnittes dieses Kühlbalkens in Richtung Stromlinienkörper. Nach oben ist dieser durch eine Halteleiste 23, deren Bohrungen die Spritzröhrchen 13 aufnehmen, die nach oben durch eine deren Spritzbild bestimmende Düse 24 abgeschlossen sind.However, as shown particularly in Fig. 7, the space formed between two adjacent rollers 10 of the roller table 1 is very narrow, so that the supply of cooling water from below and the outflow of cooling water from above are critical in such a compact arrangement. This problem is solved here by arranging the actual body of the cooling bar 2 below the mid-horizontal of the rollers 10 with simultaneous pear-shaped formation of the cross section of this cooling beam in the direction streamline body. At the top of this is a holding strip 23, the bores of which receive the spray tubes 13, which are closed at the top by a nozzle 24 which determines their spray pattern.

Wie Fig. 1 zeigt, ist die Anordnung zur kompakten Kühlung einlauf- und auslaufseitig durch schwenk- und schaltbare Längsabspritzungen 25 und 26 ergänzt. Diese tragen dafür Sorge, daß das bei der reichlichen Kühlwasseraufgabe auf der Bandoberseite stehende Kühlwasser nicht in den Bereich der technologischen Meßgeräte strömen bzw. vom Band transportiert werden kann und dort Störungen bzw. Verfälschungen der Meßergebnisse hervorrufen würde. Diese Längsabspritzungen 25 bzw. 26 bestehen aus schwenkbaren Klappen 27 bzw. 28 mit Düsenrohren 29 bzw. 30. Beim Bandeinlauf sind die Klappen hochgeschwenkt, um einen störungsfreien Banddurchlauf zu gewährleisten. Anschließend werden die Klappen 27, 28 zum Betriebe abgesenkt, und die Düsenrohre 29, 30 werden eingeschaltet. Die Düsen befinden sich nach dem Absenken der Klappen und Düsenrohre dicht über der Wandoberfläche, so daß eine effektive Düsenstrahlwirkung gewährleistet ist. Die Klappen schützen die Düsen und können bei Bandlaufstörungen, bspw. Schlingenbildung, nach oben ausweichen, ohne daß wesentliche Beschädigungen an den Vorrichtungen zur Längsabspritzung entstehen können.As shown in FIG. 1, the arrangement for compact cooling inlet and outlet side is supplemented by pivoting and switchable Längsabspritzungen 25 and 26. These ensure that the standing at the plentiful cooling water task on the tape top cooling water does not flow into the field of technological instruments or can be transported by the band and there would cause interference or falsification of the results. These Längsabspritzungen 25 and 26 consist of hinged flaps 27 and 28 with nozzle tubes 29 and 30. When the tape inlet flaps are swung up to ensure trouble-free tape passage. Subsequently, the flaps 27, 28 lowered for operation, and the nozzle tubes 29, 30 are turned on. The nozzles are located after lowering the flaps and nozzle tubes close to the wall surface, so that an effective jet effect is ensured. The flaps protect the nozzles and, in the case of strip running disturbances, for example looping, can escape upwards without substantial damage to the devices for longitudinal spraying.

Bezugszeichenreference numeral

11
Rollgangroller table
22
unterer Kühlbalkenlower chilled beam
33
oberer Spritzbalkenupper spray bar
44
Spritzrohrplatte (3)Spray tube plate (3)
55
SpritzschutzplatteSplash guard plate
66
WandführungslinealWall guide rule
77
Kappe (2)Cap (2)
88th
Kühlwasserrohr (2)Cooling water pipe (2)
99
Krümmer (2)Manifold (2)
1010
Rolle (1)Roll (1)
1111
Zapfen (10)Tenons (10)
1212
Motor (10,11)Engine (10,11)
1313
Spritzröhrchenspray tubes
1414
Bockbuck
1515
drehbares Schwenkrohrrotatable swivel tube
1616
Traghebel (15)Support lever (15)
1717
Hydraulikzylinder (16)Hydraulic cylinder (16)
1818
Anstellvorrichtung (6)Adjustment device (6)
1919
Anschlag (6)Stop (6)
2020
SpritzrohreSprays
2121
Mündungsbereichmouth area
2222
Auslaufbereich (19)Outlet area (19)
2323
Halteleiste (2)Retaining strip (2)
2424
Düsen (13)Nozzles (13)
25, 2625, 26
Anordnungen zum LängsabspritzenArrangements for longitudinal spraying
27, 2827, 28
Klappen (25, 26)Flaps (25, 26)
29,3029.30
Düsenrohre (25, 26)Nozzle pipes (25, 26)

Claims (12)

  1. Device for cooling rolling stock within the cooling path of a rolling plant, particularly for a hot strip rolling plant, in which water spray devices fixedly located between rollers (10) of a roller path (1) are arranged below the rolling stock and spray bars (3) held at support levers (16) are arranged above the rolling stock, wherein the support levers (16) are carried by a tubular, rotatably drivable and water-supplied pivot tube (15), which extends parallel to the longitudinal axis of the roller path (1), with a central water feed pipe as well as a controlling and regulating device with associated switching valves for switching-on and switching-off the cooling water, wherein the rollers (10) of the roller path (1) are arranged at the closest possible pitch, characterised in that the lower water spray devices are formed by lower cooling bars (2) having a pear-shaped cross-section, the neck of which faces towards the spacings remaining between the rollers (10) and is equipped with spray tubelets (13) which engage through the remaining spacings, wherein the neck of the pear-shaped cross-sections of the cooling bars (2) is closed by a retaining strip (23) which is advantageously exchangeable and which is equipped with the spray tubelets (13), and the spray tubelets (13) are each equipped at the free end thereof with a respective nozzle (24), and wherein the rollers (10) of the roller path (1) have elongated pins (11) of small diameter.
  2. Arrangement according to claim 1, characterised by a pivot tube (15) which is carried by blocks (14) or the like and pivotably mounted therein and is acted on by cooling water and from which the tubular support arms (16), which conduct cooling water, emanate, the arms carrying the upper spray bars (3) and supplying them with cooling water.
  3. Arrangement according to claim 2, characterised by at least one drive device associated with the pivot tube (15).
  4. Arrangement according to claim 3, characterised by a hydraulic cylinder (17) engaging a lever connected with the pivot tube (15), for example a section of a support lever (16).
  5. Arrangement according to claims 1 to 4, characterised by spray protection plates articulated in front of the front sides of the spray bars (3).
  6. Arrangement according to claims 1 to 5, characterised by guide straight-edges (6), which can be advanced against the abutments (19) reproducing the strip width to be processed and which at the start of intensive compact cooling are retractible to their opened rest setting.
  7. Arrangement according to claims 1 to 6, characterised in that spray tube plates (4) having spray tubes (20) are detachably and/or exchangeably arranged at the underside of the upper spray bars (3).
  8. Arrangement according to claim 7, characterised in that the front free ends of the mouth regions (21) of the spray tubes (20) are widened in funnel shape and the lower ends thereof are optionally drawn in in the outlet regions (22) to the desired cross-section.
  9. Arrangement according to claims 1 to 8, characterised in that the ends of the cooling path of the roller path (1) are preferably equipped with arrangements (25, 26) for longitudinal spraying down.
  10. Arrangement according to claim 9, characterised in that lowerable flaps (27, 28) are arranged upstream of the arrangements for longitudinal spraying down.
  11. Arrangement according to claims 9 and 10, characterised in that the arrangements for longitudinal spraying down (25, 26) are equipped with nozzle tubes (29, 30) loaded with pressurised water and/or compressed air.
  12. Arrangement according to claim 11, characterised in that the tubes carrying the nozzles are raisable into an open setting.
EP03745757A 2002-04-06 2003-02-27 Device for cooling rolling stock within the cooling stretch of a rolling mill Expired - Lifetime EP1492634B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10215229A DE10215229A1 (en) 2002-04-06 2002-04-06 Device for cooling rolling stock within the cooling section of a rolling mill
DE10215229 2002-04-06
PCT/EP2003/001999 WO2003084686A1 (en) 2002-04-06 2003-02-27 Device for cooling rolling stock within the cooling stretch of a rolling mill

Publications (2)

Publication Number Publication Date
EP1492634A1 EP1492634A1 (en) 2005-01-05
EP1492634B1 true EP1492634B1 (en) 2007-11-21

Family

ID=28051161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03745757A Expired - Lifetime EP1492634B1 (en) 2002-04-06 2003-02-27 Device for cooling rolling stock within the cooling stretch of a rolling mill

Country Status (12)

Country Link
US (1) US7328598B2 (en)
EP (1) EP1492634B1 (en)
JP (1) JP4436142B2 (en)
CN (1) CN1293954C (en)
AU (1) AU2003215605A1 (en)
BR (1) BR0307749B1 (en)
CA (1) CA2481444C (en)
DE (2) DE10215229A1 (en)
ES (1) ES2294307T3 (en)
RU (1) RU2313411C2 (en)
WO (1) WO2003084686A1 (en)
ZA (1) ZA200406376B (en)

Families Citing this family (11)

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DE102008032932A1 (en) * 2008-07-12 2010-01-14 Sms Siemag Aktiengesellschaft Method for longitudinally guiding a rolling stock, in particular a hot-rolled steel strip and hot rolling mill for carrying out the method
CN101837379B (en) * 2009-03-20 2013-04-24 宝山钢铁股份有限公司 Laminar flow width-offset-adjusting cooling device and control method thereof
EP2783766A1 (en) * 2013-03-25 2014-10-01 Siemens VAI Metals Technologies GmbH Cooling section with lower spray bar
EP2789405A1 (en) * 2013-04-09 2014-10-15 Siemens VAI Metals Technologies GmbH Cooling section with spray header with removable closing disc
EP2792428A1 (en) 2013-04-15 2014-10-22 Siemens VAI Metals Technologies GmbH Cooling device with width-dependent cooling effect
EP3251764B1 (en) * 2016-05-31 2019-07-03 Primetals Technologies Austria GmbH Method and device for stabilising a movement of a rolled metal strip on a roller conveyor
DE102017206540A1 (en) * 2017-04-18 2018-10-18 Sms Group Gmbh Apparatus and method for cooling metal strips or sheets
CA3086116C (en) 2017-12-20 2022-05-31 Danieli & C. Officine Meccaniche S.P.A. Apparatus for the thermal treatment of metallic products
DE102018211177A1 (en) * 2018-04-13 2019-10-17 Sms Group Gmbh Cooling device for cooling a metallic material and method for its production and operation
KR102169605B1 (en) * 2020-04-27 2020-10-23 주식회사 디케이씨 Thick Plate Heat Treatment Apparatus

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JP2721861B2 (en) * 1988-09-16 1998-03-04 トーア・スチール株式会社 Direct quenching method for hot rolled steel wire
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DE19925535A1 (en) * 1999-06-04 2000-12-07 Sms Demag Ag Adjustment method for two shielding elements arranged over a metal band and corresponding adjustment device

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RU2004132834A (en) 2005-07-20
WO2003084686A1 (en) 2003-10-16
AU2003215605A1 (en) 2003-10-20
DE50308646D1 (en) 2008-01-03
DE10215229A1 (en) 2003-10-16
EP1492634A1 (en) 2005-01-05
BR0307749A (en) 2005-02-01
CA2481444A1 (en) 2003-10-16
CN1293954C (en) 2007-01-10
ES2294307T3 (en) 2008-04-01
CN1646241A (en) 2005-07-27
BR0307749B1 (en) 2014-08-05
US20050167897A1 (en) 2005-08-04
ZA200406376B (en) 2006-04-26
RU2313411C2 (en) 2007-12-27
JP4436142B2 (en) 2010-03-24
JP2005528218A (en) 2005-09-22
US7328598B2 (en) 2008-02-12
CA2481444C (en) 2010-07-27

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