EP2188080A1 - Casting device - Google Patents

Casting device

Info

Publication number
EP2188080A1
EP2188080A1 EP08801593A EP08801593A EP2188080A1 EP 2188080 A1 EP2188080 A1 EP 2188080A1 EP 08801593 A EP08801593 A EP 08801593A EP 08801593 A EP08801593 A EP 08801593A EP 2188080 A1 EP2188080 A1 EP 2188080A1
Authority
EP
European Patent Office
Prior art keywords
width
conveyor belt
casting
side boundaries
cooling
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
EP08801593A
Other languages
German (de)
French (fr)
Other versions
EP2188080B1 (en
Inventor
Jörg BAUSCH
Jochen Wans
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 Group GmbH
Original Assignee
SMS Siemag 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
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2188080A1 publication Critical patent/EP2188080A1/en
Application granted granted Critical
Publication of EP2188080B1 publication Critical patent/EP2188080B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
    • B22D11/0685—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring

Definitions

  • the invention relates to a casting device for casting in particular liquid steel on a horizontal conveyor belt, according to the preamble of claim 1 and a method for operating a casting apparatus according to the preamble of claim 8.
  • Casting devices are known in the prior art, in which the liquid steel flows from a ladle to a distributor and from there to a horizontal conveyor belt, on which the liquid metal solidifies to a pre-band and simultaneously transported away and cooled. This process is also known as horizontal casting.
  • Such devices for horizontal casting have the disadvantage that they are determined in their width and it requires a significant conversion of the system to change the casting width of the horizontal conveyor belt and thus the Vorbandes, if such a conversion is even economically reasonable. This typically requires very extensive disassembly and assembly steps, and expensive components are required, so that such changes to a system are rather limited in their breadth. Corresponding For different casting widths, different horizontal casting systems are also constructed, which can then be utilized to their capacity.
  • the object is achieved with respect to the device, by a casting device with a ladle, a distributor and a horizontal movable conveyor belt with side boundaries, in which liquid metal, preferably liquid steel, from the ladle on the distribution device can be flowed and from there to the horizontal Transport belt can be applied or applied, wherein the side boundaries of the horizontal conveyor belt in the width of the horizontal conveyor belt considered are adjustable.
  • the pre-strip which is relevant for the casting process, is made variable in width can.
  • the adjustment can advantageously be done mechanically or hydraulically by means of appropriate actuators.
  • the adjustment is reversible.
  • the distribution device is viewed in width in the direction of the width of the conveyor belt considered adjustable.
  • the application behavior and distribution behavior of the liquid metal on the conveyor belt can be advantageously controlled.
  • At least one cooling device is arranged which serves to temper the metal running on the conveyor belt at casting speed, such as pre-strip, as well as to cool it.
  • the at least one cooling device is variably controllable in width in the direction of the width of the conveyor belt.
  • the at least one cooling device can be divided into cooling zones.
  • the cooling device has a plurality of cooling zones, wherein there are at least two edge zones which can be switched on or off depending on the width to be cooled. In such a case, cooling zones can be switched off if they are not needed due to the set casting width.
  • the object is achieved with respect to the method, by a method for operating a casting device, such as in particular a casting device with a distributor and in particular a horizontal movable conveyor belt with side boundaries, wherein the width of the cast product by in the width at an angle of 90 ° to the casting direction adjustable side limits are determined and set. It is particularly advantageous if the distributor is arranged between the side boundaries.
  • the distribution device is viewed in the casting direction in front of the side boundaries and liquid metal flows head side against the side boundaries and is limited by the side boundaries on the casting width.
  • FIG. 1 is a schematic representation of a pouring device in cross-sectional view
  • FIG. 2 is a schematic representation of a cooling device with adapted or set width in plan view
  • FIG. 3 is a schematic representation of a cooling device with adapted or set width in plan view
  • FIG. 4 is a schematic representation of a cooling device with adapted or set width in plan view
  • 5 is a schematic representation of a cooling device with adapted or set width in plan view
  • 6 is a schematic representation of a cooling device with adjusted or set width in plan view
  • Fig. 7 is a schematic representation of a cooling device with adapted or set width in plan view.
  • FIG. 1 schematically shows a casting device 1 in cross-sectional view, in which the liquid steel or a liquid metal flows from a ladle 2 onto an intermediate vessel 3 and from there via a distributor device 4 to a horizontal conveyor belt 5.
  • the horizontal conveyor belt 5 is a driven conveyor belt, which transports the metal solidified on the moving conveyor belt, such as the pre-belt 7, with casting speed.
  • rollers 6 are provided, around which the driven conveyor belt 5 rotates as an endless belt.
  • cooling devices 9 are preferably arranged below the conveyor belt 5 and / or also above the conveyor belt, which serve to be controlled on the conveyor belt 5 with casting speed solidified Vorband 7 and to cool down specifically.
  • the cooling devices 9 are, for example, spray devices spraying coolant, from which a coolant, for example water, is sprayed or applied onto the conveyor belt and / or onto the pre-strip.
  • the heat-conducting conveyor belt 5 can be cooled as such itself, so that the solidified metal applied on the conveyor belt 5 is cooled as a pre-strip 7.
  • the heat of the Vorbandes 7 is transported by the sprayed or sprayed coolant, such as cooling water, from the Vorband.
  • an inert gas hood 8 is provided, which protects the Vorband from the external air atmosphere.
  • the inert gas hood 8 may well rest on the two side boundaries 13, 14 in order to avoid heat losses.
  • FIGS. 2 to 7 show schematic views of a top view of a casting device 10, in which essentially only the cooling device 11 can be seen above and / or below the horizontally moving conveyor belt, the distribution device 12 and two respective side boundaries 13, 14.
  • the conveyor belt and the side boundaries are shown only schematically.
  • FIG 2 it can be seen that the two side boundaries 13,14 are relatively close together compared to the arrangement of Figure 3.
  • the distribution device 12 has a width at the outlet, which corresponds approximately to the distance between the two side boundaries 13,14.
  • the device of Figure 2 thus represents an arrangement for a low bandwidth, wherein the outlet of the distributor 12 corresponds approximately to the width of the conveyor belt.
  • the device of Figure 3 is adjusted in width to a greater width, so that the width of the Vorbandes to be generated, ie the distance of the side boundaries 13,14 is wider than the width of the distributor 12 of the liquid metal at the outlet.
  • the width of the distributor 12 at the outlet of the distributor 12 is unchanged in FIGS. 2 and 3.
  • the distribution device 12 has a width that is greater than the distance between the two side boundaries 13, 14.
  • the device of Figure 4 thus provides a
  • the device of FIG. 5 is adjusted in width to a greater width, so that the width of the preliminary strip to be produced, that is to say the distance between the lateral boundaries 13, 14, is about as wide or narrower than that Width of the distribution device 12 of the liquid metal at the outlet.
  • the width of the distributor 12 at the outlet of the distributor 12 is unchanged in FIGS. 4 and 5.
  • the width of the distributor 12 may alternatively be made variable in another embodiment.
  • Figures 2 to 5 each show a casting apparatus 10 with width-adjustable side boundaries 13,14.
  • the distribution device 12 for distributing the liquid metal on the conveyor belt of the casting device can also be made adjustable in the width of the outlet.
  • the width of the pre-strip between the side boundaries 13,14 narrower, be the same width or wider than the distribution device 12 in the outlet.
  • the leaking liquid metal flows in the width direction on the conveyor belt and is distributed there to the bandwidth of the Vorbandes, by the width of the side boundaries 13, 14 is given.
  • the leaking liquid metal also flows in the width direction against the side boundaries 13,14 on the conveyor belt and is also distributed from there to the entire bandwidth, through the Width of the side boundaries 13,14 is given. If the width of the distance of the side boundaries 13,14 is substantially equal to the width of the distributor 12, the leaking liquid metal flows substantially parallel to the belt width on the conveyor belt and is also distributed over the entire bandwidth, which is defined by the width of the side boundaries 13, 14 is given.
  • the cooling device 11 can also be variably controlled viewed in terms of their width, so that the cooling device 11 can be made variable in width in terms of cooling capacity or cooling temperature.
  • the cooling device 11 can be divided into different cooling zones across the width of the belt of the casting device, so that, for example, edge cooling zones 15 can be switched on or off at the edge of the cooling device 11, if they are needed due to the selected width of the pre-strip to be cast or Not.
  • Figures 6 and 7 show such a configuration in which the cooling device 11 is driven with a different active width.
  • edge zones 15 are each turned off and in Figure 7, the edge zones of the cooling device 12 are activated, that is, they are used for strip cooling of the pre-strip.
  • the activation or deactivation of the edge cooling zones 15 preferably takes place as a function of the set bandwidth of the preliminary strip, that is to say as a function of the distance of the side boundaries 13, 14.
  • the adjustment of the width of the material to be cast is made reversibly adjustable.
  • the adjustment of the width of the distance of the side boundaries 13,14 is reversibly adjustable.
  • the cooling by the cooling device with its cooling zones adjustable to the required width.
  • the adjustment of the width of the distribution device 12 is configured reversible.
  • both the width of the distance of the side boundaries 13,14 and the width of the distribution devices 12 and the width of the Cooling 11, 15 reversibly adjustable.
  • this reversible setting during operation so online, set and changed.

Abstract

The invention relates to a casting device (1) having a casting ladle (2), a distribution device (4), and a horizontally moveable transport belt (5) having side boundaries (13, 14), wherein liquid metal, preferably steel, can flow out of the casting ladle (2) onto the distribution device (4), and from there can be applied to the horizontal transport belt (5), the side boundaries (13, 14) of the horizontal transport belt (5) being adjustable across the width of the horizontal transport belt. The invention further relates to a corresponding method.

Description

Gießvorrichtung caster
Beschreibungdescription
Technisches GebietTechnical area
Die Erfindung betrifft eine Gießvorrichtung zum Gießen insbesondere von flüssigem Stahl auf ein horizontales Transportband, nach dem Oberbegriff von Anspruch 1 und ein Verfahren zum Betreiben einer Gießvorrichtung gemäß dem Oberbegriff von Anspruch 8.The invention relates to a casting device for casting in particular liquid steel on a horizontal conveyor belt, according to the preamble of claim 1 and a method for operating a casting apparatus according to the preamble of claim 8.
Stand der TechnikState of the art
Im Stand der Technik sind Gießvorrichtungen bekannt, bei welchen der flüssige Stahl von einer Gießpfanne aus auf eine Verteilvorrichtung strömt und von dort auf ein horizontales Transportband läuft, auf welchem das flüssige Metall zu einem Vorband erstarrt und gleichzeitig abtransportiert und gekühlt wird. Dieses Verfahren ist auch als Horizontalgießen bekannt.Casting devices are known in the prior art, in which the liquid steel flows from a ladle to a distributor and from there to a horizontal conveyor belt, on which the liquid metal solidifies to a pre-band and simultaneously transported away and cooled. This process is also known as horizontal casting.
Entsprechende Vorrichtungen sind im Stand der Technik beispielsweise durch die DE 198 52 275 oder die WO 97/06906 bekannt geworden.Corresponding devices have become known in the prior art, for example, by DE 198 52 275 or WO 97/06906.
Solche Vorrichtungen zum Horizontalgießen weisen den Nachteil auf, dass sie in ihrer Breite festgelegt sind und es einen erheblichen Umbau der Anlage bedarf, um die Gießbreite des horizontalen Transportbandes und somit des Vorbandes zu verändern, falls ein solcher Umbau überhaupt wirtschaftlich sinnvoll ist. Dazu sind typischerweise sehr umfangreiche Demontage und Montage- schritte notwendig und es werden teure Bauteile benötigt, so dass sich solche Veränderungen einer Anlage in der Breite eher wenig anbieten. Entsprechend werden durchaus für unterschiedliche Gießbreiten auch unterschiedliche Horizontalgießanlagen aufgebaut, die dann für sich betrachtet ausgelastet werden können.Such devices for horizontal casting have the disadvantage that they are determined in their width and it requires a significant conversion of the system to change the casting width of the horizontal conveyor belt and thus the Vorbandes, if such a conversion is even economically reasonable. This typically requires very extensive disassembly and assembly steps, and expensive components are required, so that such changes to a system are rather limited in their breadth. Corresponding For different casting widths, different horizontal casting systems are also constructed, which can then be utilized to their capacity.
Dies hat den Nachteil zur Folge, dass ein Wechsel auf einer Anlage relativ auf- wändig ist und erheblichen Rüstzeitverluste nach sich zieht oder der Aufbau einer zweiten, dritten oder mehreren Anlage einen erheblichen Kostenfaktor darstellt.This has the disadvantage that a change on a plant is relatively complex and entails considerable set-up losses or the construction of a second, third or more plant represents a significant cost factor.
Insgesamt sind diese Lösungen bislang mit erheblichen Kosten und erheblichen Zeitnachteilen verbunden, was zu einem unflexiblen Betreiben oder zu Ausbringungsverlusten von solchen Gießanlagen führt.Overall, these solutions have been associated with considerable costs and considerable time disadvantages, which leads to an inflexible operation or loss of application of such casters.
Darstellung der Erfindung, Aufgabe, Lösung, VorteilePresentation of the invention, object, solution, advantages
Es ist die Aufgabe der vorliegenden Erfindung, eine Gießanlage zum Gießen insbesondere von flüssigem Stahl auf ein horizontales Transportband und ein Verfahren hierfür zu schaffen, bei welchem auf unterschiedliche Anforderungen zu der Dimensionierung des zu gießenden Vorbandes schnell und ohne großen Aufwand reagiert werden kann.It is the object of the present invention to provide a casting plant for casting, in particular liquid steel on a horizontal conveyor belt and a method for this, in which can be responded to different requirements for the dimensioning of the pre-strip to be cast quickly and easily.
Erfindungsgemäß wird die Aufgabe bezüglich der Vorrichtung erreicht, durch eine Gießvorrichtung mit einer Gießpfanne, einer Verteilvorrichtung und einem horizontalen bewegbaren Transportband mit Seitenbegrenzungen, bei welcher flüssiges Metall, vorzugsweise flüssiger Stahl, von der Gießpfanne aus auf die Verteilvorrichtung strömbar ist und von dort auf das horizontale Transportband auftragbar bzw. aufbringbar ist, wobei die Seitenbegrenzungen des horizontalen Transportbandes in der Breite des horizontalen Transportbandes betrachtet verstellbar sind. Dadurch kann vorteilhaft erreicht werden, dass das Vorband, das für den Gießprozess relevant ist, in der Breite variabel ausgeführt werden kann. Die Verstellung kann vorteilhaft mechanisch oder auch hydraulisch mittels entsprechender Stellglieder erfolgen. Vorteilhaft ist die Verstellung reversibel.According to the invention the object is achieved with respect to the device, by a casting device with a ladle, a distributor and a horizontal movable conveyor belt with side boundaries, in which liquid metal, preferably liquid steel, from the ladle on the distribution device can be flowed and from there to the horizontal Transport belt can be applied or applied, wherein the side boundaries of the horizontal conveyor belt in the width of the horizontal conveyor belt considered are adjustable. As a result, it can be advantageously achieved that the pre-strip, which is relevant for the casting process, is made variable in width can. The adjustment can advantageously be done mechanically or hydraulically by means of appropriate actuators. Advantageously, the adjustment is reversible.
Weiterhin ist es vorteilhaft, wenn die Verteilvorrichtung in der Breite in Richtung der breite des Transportbandes betrachtet verstellbar ist. Dadurch kann vorteil- haft das Auftragsverhalten und Verteil verhalten des flüssigen Metalls auf dem Transportband gesteuert werden.Furthermore, it is advantageous if the distribution device is viewed in width in the direction of the width of the conveyor belt considered adjustable. As a result, the application behavior and distribution behavior of the liquid metal on the conveyor belt can be advantageously controlled.
Auch ist es zweckmäßig, wenn unterhalb des horizontalen Transportbandes und/oder oberhalb des horizontalen Transportbandes weiterhin zumindest eine Kühlvorrichtung angeordnet ist, welche dazu dient, das auf dem Transportband mit Gießgeschwindigkeit laufende Metall, wie Vorband, zu temperieren, wie zu kühlen.It is also expedient if, below the horizontal conveyor belt and / or above the horizontal conveyor belt, furthermore at least one cooling device is arranged which serves to temper the metal running on the conveyor belt at casting speed, such as pre-strip, as well as to cool it.
Besonders vorteilhaft ist es, wenn die zumindest eine Kühlvorrichtung in der Breite in Richtung auf die Breite des Transportbandes betrachtet variabel ansteuerbar ist.It is particularly advantageous if the at least one cooling device is variably controllable in width in the direction of the width of the conveyor belt.
Insbesondere ist es vorteilhaft, wenn die zumindest eine Kühlvorrichtung in der Breite in Richtung auf die Breite des Transportbandes betrachtet in Kühlzonen aufteilbar ist. Wobei es dabei vorteilhaft ist, wenn die Kühlvorrichtung eine Mehrzahl von Kühlzonen aufweist, wobei davon zumindest zwei Randzonen vorliegen, die in Abhängigkeit der zu kühlenden Breite zu- oder abschaltbar sind. In einem solchen Falle können Kühlzonen abgeschaltet werden, wenn sie aufgrund der eingestellten Gießbreite nicht benötigt werden.In particular, it is advantageous if, viewed in width in the direction of the width of the conveyor belt, the at least one cooling device can be divided into cooling zones. Whereby it is advantageous if the cooling device has a plurality of cooling zones, wherein there are at least two edge zones which can be switched on or off depending on the width to be cooled. In such a case, cooling zones can be switched off if they are not needed due to the set casting width.
Erfindungsgemäß wird die Aufgabe bezüglich des Verfahrens erreicht, durch eine Verfahren zum Betreiben einer Gießvorrichtung, wie insbesondere einer Gießvorrichtung mit einer Verteilvorrichtung und insbesondere einem horizontalen bewegbaren Transportband mit Seitenbegrenzungen, wobei die Breite des Gussprodukts durch in der Breite in einem Winkel von 90° zur Gießrichtung verstellbare Seitenbegrenzungen bestimmt und eingestellt wird. Dabei ist es besonders vorteilhaft, wenn die Verteilvorrichtung zwischen den Seitenbegrenzungen angeordnet ist.According to the invention, the object is achieved with respect to the method, by a method for operating a casting device, such as in particular a casting device with a distributor and in particular a horizontal movable conveyor belt with side boundaries, wherein the width of the cast product by in the width at an angle of 90 ° to the casting direction adjustable side limits are determined and set. It is particularly advantageous if the distributor is arranged between the side boundaries.
Bei einem anderen Ausführungsbeispiel ist es auch vorteilhaft, wenn die Ver- teilvorrichtung in Gießrichtung betrachtet vor den Seitenbegrenzungen angeordnet ist und flüssiges Metall kopfseitig gegen die Seitenbegrenzungen fließt und mittels der Seitenbegrenzungen auf die Gießbreite beschränkt wird.In another embodiment, it is also advantageous if the distribution device is viewed in the casting direction in front of the side boundaries and liquid metal flows head side against the side boundaries and is limited by the side boundaries on the casting width.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Nachstehend wird die Erfindung auf der Grundlage eines Ausführungsbeispiels anhand der Zeichnungen näher erläutert. Es zeigen:The invention will be explained in more detail on the basis of an embodiment with reference to the drawings. Show it:
Fig. 1 eine schematische Darstellung einer Gießvorrichtung in Querschnittsansicht,1 is a schematic representation of a pouring device in cross-sectional view,
Fig. 2 eine schematische Darstellung einer Kühlvorrichtung bei ange- passter bzw. eingestellter Breite in Draufsicht,2 is a schematic representation of a cooling device with adapted or set width in plan view,
Fig. 3 eine schematische Darstellung einer Kühlvorrichtung bei ange- passter bzw. eingestellter Breite in Draufsicht,3 is a schematic representation of a cooling device with adapted or set width in plan view,
Fig. 4 eine schematische Darstellung einer Kühlvorrichtung bei ange- passter bzw. eingestellter Breite in Draufsicht,4 is a schematic representation of a cooling device with adapted or set width in plan view,
Fig. 5 eine schematische Darstellung einer Kühlvorrichtung bei ange- passter bzw. eingestellter Breite in Draufsicht, Fig. 6 eine schematische Darstellung einer Kühlvorrichtung bei ange- passter bzw. eingestellter Breite in Draufsicht, und5 is a schematic representation of a cooling device with adapted or set width in plan view, 6 is a schematic representation of a cooling device with adjusted or set width in plan view, and
Fig. 7 eine schematische Darstellung einer Kühlvorrichtung bei ange- passter bzw. eingestellter Breite in Draufsicht.Fig. 7 is a schematic representation of a cooling device with adapted or set width in plan view.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Die Figur 1 zeigt schematisch eine Gießvorrichtung 1 in Querschnittsansicht, bei welcher der flüssige Stahl oder ein flüssiges Metall von einer Gießpfanne 2 aus auf ein Zwischengefäß 3 strömt und von dort über eine Verteilvorrichtung 4 auf ein horizontales Transportband 5 läuft. Das horizontale Transportband 5 ist ein angetriebenes Transportband, welches das auf dem bewegten Transportband erstarrte Metall, wie das Vorband 7, mit Gießgeschwindigkeit abtranspor- tiert. Dazu sind beispielsweise Rollen 6 vorgesehen, um welche das angetriebene Transportband 5 als Endlosband umläuft.FIG. 1 schematically shows a casting device 1 in cross-sectional view, in which the liquid steel or a liquid metal flows from a ladle 2 onto an intermediate vessel 3 and from there via a distributor device 4 to a horizontal conveyor belt 5. The horizontal conveyor belt 5 is a driven conveyor belt, which transports the metal solidified on the moving conveyor belt, such as the pre-belt 7, with casting speed. For this example, rollers 6 are provided, around which the driven conveyor belt 5 rotates as an endless belt.
Weiterhin sind vorzugsweise unterhalb des Transportbandes 5 und/oder auch oberhalb des Transportbandes 5 Kühlvorrichtungen 9 angeordnet, welche dazu dienen, das auf dem Transportband 5 mit Gießgeschwindigkeit abkühlende erstarrte Vorband 7 kontrolliert und gezielt abkühlen zu lassen. Die Kühlvorrichtungen 9 sind beispielsweise Kühlmittel versprühende Spritzvorrichtungen, von welchen aus ein Kühlmittel, wie beispielsweise Wasser, auf das Transportband und/oder auf das Vorband aufgespritzt oder aufgetragen wird. Durch die Kühl- Vorrichtung 9 kann beispielsweise auch das wärmeleitende Transportband 5 als solches selbst abgekühlt werden, damit das auf dem Transportband 5 aufgetragene erstarrte Metall als Vorband 7 gekühlt wird. Dadurch wird die Wärme des Vorbandes 7 durch das aufgespritzte oder aufgesprühte Kühlmittel, wie Kühlwasser, von dem Vorband abtransportiert. Oberhalb des Transportbands 5 ist eine Inertgashaube 8 vorgesehen, welche das Vorband vor der externen Luftatmosphäre schützt. Dabei kann die Inertgashaube 8 durchaus auch auf den beiden Seitenbegrenzungen 13,14 aufliegen, um Wärmeverluste zu vermeiden.Furthermore, 5 cooling devices 9 are preferably arranged below the conveyor belt 5 and / or also above the conveyor belt, which serve to be controlled on the conveyor belt 5 with casting speed solidified Vorband 7 and to cool down specifically. The cooling devices 9 are, for example, spray devices spraying coolant, from which a coolant, for example water, is sprayed or applied onto the conveyor belt and / or onto the pre-strip. By the cooling device 9, for example, the heat-conducting conveyor belt 5 can be cooled as such itself, so that the solidified metal applied on the conveyor belt 5 is cooled as a pre-strip 7. As a result, the heat of the Vorbandes 7 is transported by the sprayed or sprayed coolant, such as cooling water, from the Vorband. Above the conveyor belt 5 an inert gas hood 8 is provided, which protects the Vorband from the external air atmosphere. In this case, the inert gas hood 8 may well rest on the two side boundaries 13, 14 in order to avoid heat losses.
Dabei sind die Seitenbegrenzungen 13,14 nur schematisch angedeutet.The side boundaries 13,14 are indicated only schematically.
Die Figuren 2 bis 7 zeigen schematische Darstellungen von einer Draufsicht einer Gießvorrichtungen 10, bei welchen im Wesentlichen nur die Kühlvorrichtung 11 über und/oder unter dem horizontal laufenden Transportband, die Ver- teilvorrichtung 12 und zwei jeweilige Seitenbegrenzungen 13,14 zu erkennen sind. Dabei sind das Transportband und die Seitenbegrenzungen nur schematisch dargestellt.FIGS. 2 to 7 show schematic views of a top view of a casting device 10, in which essentially only the cooling device 11 can be seen above and / or below the horizontally moving conveyor belt, the distribution device 12 and two respective side boundaries 13, 14. The conveyor belt and the side boundaries are shown only schematically.
In Figur 2 ist zu erkennen, dass die beiden Seitenbegrenzungen 13,14 relativ nahe zusammen stehen im Vergleich zu der Anordnung der Figur 3. Die Verteilvorrichtung 12 hat eine Breite am Auslauf, die etwa dem Abstand der beiden Seitenbegrenzungen 13,14 entspricht. Die Vorrichtung der Figur 2 stellt somit eine Anordnung für eine geringe Bandbreite dar, bei welcher der Auslauf der Verteilvorrichtung 12 etwa der Breite des Transportbandes entspricht.In Figure 2 it can be seen that the two side boundaries 13,14 are relatively close together compared to the arrangement of Figure 3. The distribution device 12 has a width at the outlet, which corresponds approximately to the distance between the two side boundaries 13,14. The device of Figure 2 thus represents an arrangement for a low bandwidth, wherein the outlet of the distributor 12 corresponds approximately to the width of the conveyor belt.
Dem gegenüber ist die Vorrichtung der Figur 3 in der Breite zu einer größeren Breite hin verstellt, so dass die Breite des zu erzeugenden Vorbandes, also der Abstand der Seitenbegrenzungen 13,14 breiter ist als die Breite der Verteilvorrichtung 12 des flüssigen Metalls an deren Auslauf. Die Breite der Verteilvor- richtung 12 am Auslauf der Verteilvorrichtung 12 ist in den Figuren 2 und 3 unverändert.In contrast, the device of Figure 3 is adjusted in width to a greater width, so that the width of the Vorbandes to be generated, ie the distance of the side boundaries 13,14 is wider than the width of the distributor 12 of the liquid metal at the outlet. The width of the distributor 12 at the outlet of the distributor 12 is unchanged in FIGS. 2 and 3.
In Figur 4 ist zu erkennen, dass die beiden Seitenbegrenzungen 13,14 wiederum relativ nahe zusammen stehen im Vergleich zu der Anordnung der Figur 5. Die Verteilvorrichtung 12 hat eine Breite, die größer ist als der Abstand der beiden Seitenbegrenzungen 13,14. Die Vorrichtung der Figur 4 stellt somit eine Anordnung für eine geringe Bandbreite dar. Dem gegenüber ist die Vorrichtung der Figur 5 in der Breite zu einer größeren Breite hin verstellt, so dass die Breite des zu erzeugenden Vorbandes, also der Abstand der Seitenbegrenzungen 13,14 etwa so breit oder schmaler ist als die Breite der Verteilvorrichtung 12 des flüssigen Metalls an deren Auslauf. Die Breite der Verteilvorrichtung 12 am Auslauf der Verteilvorrichtung 12 ist in den Figuren 4 und 5 unverändert. Die Breite der Verteilvorrichtung 12 kann alternativ bei einem anderen Ausführungsbeispiel auch veränderlich ausgeführt werden.In FIG. 4, it can be seen that the two side boundaries 13, 14 are again relatively close together in comparison to the arrangement of FIG. 5. The distribution device 12 has a width that is greater than the distance between the two side boundaries 13, 14. The device of Figure 4 thus provides a On the other hand, the device of FIG. 5 is adjusted in width to a greater width, so that the width of the preliminary strip to be produced, that is to say the distance between the lateral boundaries 13, 14, is about as wide or narrower than that Width of the distribution device 12 of the liquid metal at the outlet. The width of the distributor 12 at the outlet of the distributor 12 is unchanged in FIGS. 4 and 5. The width of the distributor 12 may alternatively be made variable in another embodiment.
Insgesamt zeigen die Figuren 2 bis 5 jeweils eine Gießvorrichtung 10 mit in der Breite verstellbaren Seitenbegrenzungen 13,14. Dabei kann die Verteilvorrichtung 12 zur Verteilung des flüssigen Metalls auf dem Transportband der Gießvorrichtung auch in der Breite des Auslaufs verstellbar ausgeführt sein. Dabei kann die Breite des Vorbandes zwischen den Seitenbegrenzungen 13,14 schmäler, gleich breit oder breiter sein als die Verteilvorrichtung 12 in deren Auslauf sein. Durch die Verstellung der Breite der Verteilvorrichtung 12 können unterschiedliche Massenströme auf das Transportband der Gießvorrichtung aufgebracht werden, wobei die Breite der Verteilvorrichtung 12 an die Massenströme in Hinblick auf die Bandbreite des Vorbandes eingestellt werden kann.Overall, Figures 2 to 5 each show a casting apparatus 10 with width-adjustable side boundaries 13,14. In this case, the distribution device 12 for distributing the liquid metal on the conveyor belt of the casting device can also be made adjustable in the width of the outlet. In this case, the width of the pre-strip between the side boundaries 13,14 narrower, be the same width or wider than the distribution device 12 in the outlet. By adjusting the width of the distributor 12, different mass flows can be applied to the conveyor belt of the caster, wherein the width of the distributor 12 can be adjusted to the mass flows in terms of the bandwidth of the pre-strip.
Ist die Breite des Abstandes der Seitenbegrenzungen 13,14 größer als die Breite der Verteilvorrichtung 12 am Auslauf, fließt das austretende flüssige Metall auch in Breitenrichtung auf das Transportband und verteilt sich dort bis auf die Bandbreite des Vorbandes, die durch die Breite der Seitenbegrenzungen 13,14 gegeben ist.If the width of the distance of the side boundaries 13,14 greater than the width of the distribution device 12 at the outlet, the leaking liquid metal flows in the width direction on the conveyor belt and is distributed there to the bandwidth of the Vorbandes, by the width of the side boundaries 13, 14 is given.
Ist die Breite des Abstandes der Seitenbegrenzungen 13,14 schmäler als die Breite der Verteilvorrichtung 12, fließt das austretende flüssige Metall auch in Breitenrichtung betrachtet gegen die Seitenbegrenzungen 13,14 auf dem Transportband und verteilt sich auch von dort auf der gesamten Bandbreite, die durch die Breite der Seitenbegrenzungen 13,14 gegeben ist. Ist die Breite des Abstandes der Seitenbegrenzungen 13,14 im Wesentlichen gleich der Breite der Verteilvorrichtung 12, fließt das austretende flüssige Metall im Wesentlichen parallel zur Bandbreite auf das Transportband und verteilt sich auch dort auf der gesamten Bandbreite, die durch die Breite der Seitenbegrenzungen 13,14 gegeben ist.If the width of the distance of the side boundaries 13,14 narrower than the width of the distribution device 12, the leaking liquid metal also flows in the width direction against the side boundaries 13,14 on the conveyor belt and is also distributed from there to the entire bandwidth, through the Width of the side boundaries 13,14 is given. If the width of the distance of the side boundaries 13,14 is substantially equal to the width of the distributor 12, the leaking liquid metal flows substantially parallel to the belt width on the conveyor belt and is also distributed over the entire bandwidth, which is defined by the width of the side boundaries 13, 14 is given.
Neben der Breitenversteilbarkeit der Seitenbegrenzungen 13,14 des Transportbands und/oder der Verteilvorrichtung 12 kann weiterhin die Kühlvorrichtung 11 in ihrer Breite betrachtet variabel ansteuerbar sein, so dass die Kühlvorrichtung 11 in ihrer Kühlleistung oder Kühltemperatur in der Breite variabel ausgestaltet werden kann. Dabei kann die Kühlvorrichtung 11 in unterschiedliche Kühlzonen über die Breite des Bandes der Gießvorrichtung betrachtet aufgeteilt werden, so dass dabei beispielsweise Randkühlzonen 15 am Rand der Kühlvorrichtung 11 zu- oder abgeschaltet werden können, falls sie aufgrund der gewählten Breite des zu gießenden Vorbandes benötigt werden oder nicht. Die Figuren 6 und 7 zeigen eine solche Ausgestaltung, bei welcher die Kühlvorrichtung 11 mit einer unterschiedlichen aktiven Breite angesteuert wird. In Figur 6 sind die Randzonen 15 jeweils abgeschaltet und in Figur 7 sind die Randzonen der Kühlvorrichtung 12 aktiviert, das heißt, sie werden zur Bandkühlung des Vorbandes herangezogen. Die Aktivierung bzw. Deaktivierung der Randkühlzonen 15 erfolgt vor- zugsweise in Abhängigkeit der eingestellten Bandbreite des Vorbandes, also in Abhängigkeit des Abstandes der Seitenbegrenzungen 13,14.In addition to the width adjustability of the side boundaries 13,14 of the conveyor belt and / or the distribution device 12, the cooling device 11 can also be variably controlled viewed in terms of their width, so that the cooling device 11 can be made variable in width in terms of cooling capacity or cooling temperature. In this case, the cooling device 11 can be divided into different cooling zones across the width of the belt of the casting device, so that, for example, edge cooling zones 15 can be switched on or off at the edge of the cooling device 11, if they are needed due to the selected width of the pre-strip to be cast or Not. Figures 6 and 7 show such a configuration in which the cooling device 11 is driven with a different active width. In Figure 6, the edge zones 15 are each turned off and in Figure 7, the edge zones of the cooling device 12 are activated, that is, they are used for strip cooling of the pre-strip. The activation or deactivation of the edge cooling zones 15 preferably takes place as a function of the set bandwidth of the preliminary strip, that is to say as a function of the distance of the side boundaries 13, 14.
Erfindungsgemäß ist es besonders vorteilhaft, wenn die Einstellung der Breite des zu gießenden Materials reversibel verstellbar ausgestaltet ist. Dazu ist die Verstellung der Breite des Abstandes der Seitenbegrenzungen 13,14 reversibel einstellbar. Vorteilhaft ist dabei in einem Ausführungsbeispiel auch die Kühlung durch die Kühlvorrichtung mit ihren Kühlzonen auf die benötigte Breite einstellbar. Darüber hinaus ist es vorteilhaft, wenn auch die Verstellung der Breite der Verteilvorrichtung 12 reversibel ausgestaltet ist. In einer besonders vorteilhaften Ausführung sind sowohl die Breite des Abstands der Seitenbegrenzungen 13,14 als auch die Breite der Verteilvorrichtungen 12 als auch die Breite der Kühlung 11 ,15 reversibel einstellbar. Besonders vorteilhaft kann diese reversible Einstellung während des Betriebs, also online, eingestellt und verändert werden. According to the invention it is particularly advantageous if the adjustment of the width of the material to be cast is made reversibly adjustable. For this purpose, the adjustment of the width of the distance of the side boundaries 13,14 is reversibly adjustable. It is advantageous in one embodiment, the cooling by the cooling device with its cooling zones adjustable to the required width. Moreover, it is advantageous if the adjustment of the width of the distribution device 12 is configured reversible. In a particularly advantageous embodiment, both the width of the distance of the side boundaries 13,14 and the width of the distribution devices 12 and the width of the Cooling 11, 15 reversibly adjustable. Particularly advantageous, this reversible setting during operation, so online, set and changed.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Gießvorrichtung 2 Gießpfanne1 pouring device 2 ladle
3 Zwischengefäß3 intermediate vessel
4 Verteilvorrichtung4 distributor
5 Transportband5 conveyor belt
6 Rolle 7 Vorband6 roll 7 opening band
8 Inertgashaube8 inert gas hood
9 Kühlvorrichtung9 cooling device
10 Gießvorrichtung10 casting device
11 Kühlvorrichtung 12 Verteilvorrichtung11 Cooling device 12 Distribution device
13 Seitenbegrenzung13 page limit
14 Seitenbegrenzung14 page limit
15 Kühlzone, Randzone 15 cooling zone, edge zone

Claims

5 Ansprüche 5 claims
1. Gießvorrichtung (1 ) mit einer Gießpfanne (2), einer Verteilvorrichtung (4) und einem horizontalen bewegbaren Transportband (5) mit w Seitenbegrenzungen (13,14), bei welcher flüssiges Metall, vorzugsweise Stahl, von der Gießpfanne (2) aus auf die Verteilvorrichtung (4,12) strömbar und von dort auf das horizontale Transportband (5) auftragbar ist, dadurch gekennzeichnet, dass die Seitenbegrenzungen (13,14) des horizontalen Transportbandes (5) in1. casting device (1) with a ladle (2), a distributor (4) and a horizontal movable conveyor belt (5) with w side boundaries (13,14), in which liquid metal, preferably steel, from the ladle (2) on the distributor (4,12) flows and from there on the horizontal conveyor belt (5) can be applied, characterized in that the side boundaries (13,14) of the horizontal conveyor belt (5) in
15 der Breite des horizontalen Transportbandes betrachtet verstellbar sind.15 considered the width of the horizontal conveyor belt are adjustable.
2. Gießvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verteilvorrichtung (4,12) in der 0 Breite in Richtung der breite des Transportbandes betrachtet verstellbar ist.2. Casting device according to one of the preceding claims, characterized in that the distribution device (4,12) viewed in the 0 width in the direction of the width of the conveyor belt is adjustable.
3. Gießvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass unterhalb des horizontalen 5 Transportbandes (5) und/oder oberhalb des horizontalen3. Casting device according to one of the preceding claims, characterized in that below the horizontal conveyor belt 5 (5) and / or above the horizontal
Transportbandes (5) weiterhin zumindest eine Kühlvorrichtung (9) angeordnet ist, welche dazu dient, das auf dem Transportband mit Gießgeschwindigkeit laufende Vorband zu kühlen. 0 4. Gießvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die zumindest eine Kühlvorrichtung (9,11) in der Breite in Richtung auf die Breite des Transportbandes betrachtet variabel ansteuerbar ist.Conveyor belt (5) further at least one cooling device (9) is arranged, which serves to cool the running belt on the conveyor belt with casting speed. 0 4. Casting apparatus according to claim 3, characterized in that the at least one cooling device (9,11) viewed in the width in the direction of the width of the conveyor belt is variably controllable.
5. Gießvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die5 zumindest eine Kühlvorrichtung (9,11 ) in der Breite in Richtung auf die Breite des Transportbandes betrachtet in Kühlzonen aufteilbar ist. 5. Casting device according to claim 4, characterized in that the at least one cooling device (9, 11), viewed in the width in the direction of the width of the conveyor belt, can be divided into cooling zones.
6. Gießvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Kühlvorrichtung (9,11 ) eine Mehrzahl von Kühlzonen aufweist, wobei davon zumindest zwei Randzonen (15) vorliegen, die in Abhängigkeit der zu kühlenden Breite zu- oder abschaltbar sind.6. Casting apparatus according to claim 5, characterized in that the cooling device (9,11) has a plurality of cooling zones, wherein there are at least two edge zones (15), which can be switched on or off depending on the width to be cooled.
7. Gießvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass oberhalb des Transportbandes (5) eine Inertgashaube (8) vorgesehen ist zum Schutz des Vorbandes (7).7. Casting device according to one of the preceding claims, characterized in that above the conveyor belt (5) an inert gas hood (8) is provided for the protection of the pre-strip (7).
8. Verfahren zum Betreiben einer Gießvorrichtung, insbesondere einer Gießvorrichtung (1 ) mit einer Verteilvorrichtung (4) und insbesondere einem horizontalen bewegbaren Transportband (5) mit Seitenbegrenzungen (13,14), wobei die Breite des Gussprodukts durch in der Breite in einem Winkel von 90° zur Gießrichtung verstellbare Seitenbegrenzungen (13,14) bestimmt und eingestellt wird.8. A method for operating a casting device, in particular a casting device (1) with a distributor (4) and in particular a horizontal movable conveyor belt (5) with side boundaries (13,14), wherein the width of the cast product by in width at an angle of 90 ° to the casting direction adjustable side boundaries (13,14) determined and adjusted.
9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass die9. The method according to claim 8, characterized in that the
Verteilvorrichtung (12) zwischen den Seitenbegrenzungen (13,14) angeordnet ist.Distributor (12) between the side boundaries (13,14) is arranged.
10. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass die Verteilvorrichtung (12) in Gießrichtung betrachtet vor den10. The method according to claim 8, characterized in that the distribution device (12) viewed in the casting direction in front of the
Seitenbegrenzungen (13,14) angeordnet ist und flüssiges Metall kopfseitig gegen die Seitenbegrenzungen (13,14) fließt und mittels der Seitenbegrenzungen (13,14) auf die Gießbreite beschränkt wird. Side boundaries (13,14) is arranged and liquid metal head side against the side boundaries (13,14) flows and is limited by the side boundaries (13,14) on the casting width.
EP08801593.8A 2007-08-16 2008-08-15 Casting device Active EP2188080B1 (en)

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DE102007038621 2007-08-16
DE102008031476A DE102008031476A1 (en) 2007-08-16 2008-07-03 caster
PCT/EP2008/006731 WO2009021752A1 (en) 2007-08-16 2008-08-15 Casting device

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EP2188080B1 (en) 2017-04-12
US20110265970A1 (en) 2011-11-03
CN101778681A (en) 2010-07-14
CA2694592A1 (en) 2009-02-19
CN101778681B (en) 2012-07-18
KR20100036333A (en) 2010-04-07
WO2009021752A1 (en) 2009-02-19
CA2694592C (en) 2011-04-19
US20100236748A1 (en) 2010-09-23
JP2010535631A (en) 2010-11-25
US20160199905A1 (en) 2016-07-14
DE102008031476A1 (en) 2009-02-19

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