EP0033309B1 - Protective device for a casting stream issuing from a metallurgical vessel - Google Patents

Protective device for a casting stream issuing from a metallurgical vessel Download PDF

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Publication number
EP0033309B1
EP0033309B1 EP81890004A EP81890004A EP0033309B1 EP 0033309 B1 EP0033309 B1 EP 0033309B1 EP 81890004 A EP81890004 A EP 81890004A EP 81890004 A EP81890004 A EP 81890004A EP 0033309 B1 EP0033309 B1 EP 0033309B1
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EP
European Patent Office
Prior art keywords
web
arrangement according
linkage
parallelogram
tube
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
Application number
EP81890004A
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German (de)
French (fr)
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EP0033309A2 (en
EP0033309A3 (en
Inventor
Walter Fortner
Erich Misera
Franz Landerl
Günther Robiczek
Meinhard Berger
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Voestalpine AG
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Voestalpine AG
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Publication of EP0033309A2 publication Critical patent/EP0033309A2/en
Publication of EP0033309A3 publication Critical patent/EP0033309A3/en
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    • 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
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the invention relates to a protective device for a pouring jet emerging from a metallurgical vessel, in particular from a pouring ladle, with a shadow tube (protective tube) enveloping the pouring jet, which is attached to an articulated linkage which can be pivoted in any spatial direction.
  • the invention aims to avoid these disadvantages and difficulties and has the object to provide a protective device of the type described in such a way that the shadow pipe follow any position of the pouring stream, i. H. can take any positions at different distances from the mounting of the linkage supporting the shadow pipe.
  • the joint linkage has a first, vertically extending joint parallelogram, which is rotatably mounted with its vertically arranged web about a vertical axis, on the coupling of which is articulated a boom supporting the shadow tube, which is the rocker arm of a second four-bar linkage forms, the web of which is formed by a rocker of the first joint parallelogram.
  • a rocker of the first articulated parallelogram is advantageously extended over its web, a counterweight being arranged on the extension.
  • a rocker of the first articulated parallelogram is advantageously extended over its web, and interacts with a stop arranged on the web of this articulated parallelogram, which is preferably adjustable.
  • the web of the first articulated parallelogram is expediently rotatably attached to an intermediate vessel of a continuous casting installation, into which vessel the pouring stream flows.
  • a swing arm of the second four-bar linkage has an extension designed as an actuating lever.
  • the shadow tube can be supported on a centering projection of a slide closing an outflow opening of a pan and can be pressed on automatically by means of the counterweight, the shadow tube advantageously being rotatably mounted on the boom about its longitudinal axis.
  • the shadow tube if it is supported on the slide, can follow the slide when the slide is actuated while maintaining its position relative to the slide, without twisting between the slide and the shadow tube.
  • FIG. 1 shows a view of an intermediate vessel of a continuous caster from above and Fig. 2 shows a side view along the line 11-11.
  • Fig. 3 is a sectional view taken along the line 111-111 of Fig. 1.
  • FIG. 4 illustrates a section along line IV-IV
  • FIG. 5 shows a section along line V-V of FIG. 3.
  • FIGS. 6 and 7 show a further embodiment in a representation analogous to FIGS. 1 and 2.
  • FIG. 8 illustrates a detail of the suspension of the shadow pipe according to a further variant, FIGS. 9 and 10 sections according to lines IX-IX and X-X of FIG. 8.
  • the intermediate vessel designated 1 is inserted into an intermediate vessel holder 2, shown in dashed lines in FIG. 1, on which a lateral bracket 3 is arranged, which supports a column 4 which projects up to the height of the intermediate vessel 1.
  • a vertically oriented, first joint parallelogram 5 is rotatably mounted on this column 4, the axis of rotation 6 being directed vertically and coinciding with the web 7 of the joint parallelogram 5.
  • the coupling 8 of this joint parallelogram is therefore also directed vertically.
  • the joint axes connecting the rockers 9, 10 in the coupling 8 and the web 7 run horizontally.
  • a boom 11 is also rotatably mounted about a vertical axis 12.
  • a U-shaped shade tube holder 13 is detachably inserted on the arm 11.
  • This shade tube holder 13 can be secured in its axial position by means of a locking pin 14 and can be fixed against rotation about its axis 17 on the bracket 11 by an axially displaceable on the arm 11, insertable into a lateral tab 15 of the shade tube holder 13.
  • the arm 11 forms a rocker arm of a further four-bar linkage 20, which is advantageously also designed as a parallelogram.
  • the web of this second parallelogram 20 is by a rocker 9 of the
  • first joint parallelogram 5 is formed.
  • a further rocker 21 designed as an actuating lever is connected via a coupling 22 to the boom 11, i. H. the rocker of the second joint parallelogram 20 connected.
  • the rocker 9 of the first joint parallelogram 5 is extended beyond the web 7;
  • the extension 23 serves to receive a counterweight 24, which is dimensioned so that the shadow tube 19 is automatically pushed up with a certain force.
  • the extension 23 interacts with a set screw 25 mounted on the web 7 and forming a stop, by means of which the upward movement of the shadow tube is limited.
  • the web 7 projecting into the column 4 with a pin 26 is mounted on the column by means of an axial ball bearing 27.
  • the boom also has an axial ball bearing 28 with which it is supported on the coupling 8 of the first articulated parallelogram 5.
  • a slide 30 is arranged on the underside of a ladle 29 and is provided with a hollow centering projection 31 on which the shadow pipe 19 is aligned.
  • the shadow tube fits into the holder with play 32. Special sealing measures are not required.
  • the centering projection is arranged on a slide plate 34 which covers the pouring opening 33 of the pan 29 in the closed position.
  • the shadow pipe 19 is rotatably supported in the holder 13 by means of a bearing 35 about its longitudinal axis, as a result of which it always assumes the same position with respect to the centering projection 31 even when the slide is moved.
  • a rotation of the shadow pipe 19 with respect to the centering projection 31 about the axis of the pouring opening 33 of the pan (or about the longitudinal axis of the shadow pipe 19) is thus excluded.
  • the shadow pipe 19 can be adapted to various positions of the ladle pouring opening 33 in wide areas. It can be pivoted both about the axis of the web 7 of the first gel parallelogram 5 according to the arrows 36 and also about the axis 12 of the arm 11 of the first joint parallelogram 5 with the help of the second joint parallelogram 20 in the direction of the arrows 37.
  • the entire device is pivoted about the axis of rotation 6 after the shadow tube is disengaged from the centering projection 31 by lowering. has been.
  • the first articulated parallelogram 5 is mounted directly on the tundish 1 on a side bracket 38 of the same.
  • the shadow tube 19 is gimbal-mounted and rotatable, so that its position does not change relative to the slide when the slide is actuated, i. H. it occurs even when the slider is operated. no twisting between slider and shadow pipe.
  • the cardanic bearing allows the conical upper part 40 of the shadow pipe 19 to be precisely adapted to the centering projection 31 of the slide.
  • the shadow pipe 19 is inserted in a receiving part 41 which is rotatable relative to the shadow pipe holder 39 and is secured against falling out by means of a releasable sleeve 42 on this receiving part 41.
  • the receiving part 41 rests (rotatably) on a first hinge plate 43, which is pivotable about an axis 44 relative to a second hinge plate 45.
  • the second hinge plate is in turn pivotally attached to the shade tube holder 39 about an axis 46 oriented at right angles to the axis 44.
  • the invention is not limited to the exemplary embodiments shown in the drawing, but can be modified in various ways.
  • the device described can also be used for the pouring tube extending from the tundish into the mold.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)

Description

Die Erfindung betrifft eine Schutzvorrichtung für einen aus einem metallurgischen Gefäß, insbesondere aus einer Gießpfanne, austretenden Gießstrahl mit einem den Gießstrahl umhüllenden Schattenrohr (Schutzrohr), das an einem in jede Raumrichtung schwenkbaren Gelenkgestänge befestigt ist.The invention relates to a protective device for a pouring jet emerging from a metallurgical vessel, in particular from a pouring ladle, with a shadow tube (protective tube) enveloping the pouring jet, which is attached to an articulated linkage which can be pivoted in any spatial direction.

Es ist aus der österreichischen Anmeldung AT-A-332006 bekannt, den Gießstrahl auf dem Weg von einem metallurgischen Gefäß in eine Kokille durch ein Schattenrohr fließen zu lassen, welches Schattenrohr an einem Halter befestigt ist, der mittels eines Kugelgelenkes ortsfest gelagert ist. Diese Befestigung erlaubt ein Kippen und Drehen des Schattenrohres und ein Bewegen in und aus der beabsichtigten Arbeitsposition. Mit dieser bekannten Einrichtung lst es jedoch nicht möglich, das Schattenrohr beliebige Lagen in unterschiedlichen Entfernungen vom Halter bzw. vom Kugelgelenk einnehmen zu lassen, sodaß das Schattenrohr bei der bekannten Einrichtung an die jeweilige Lage des Gießstrahles bzw. des Ausgusses des metallurgischen Gefäßes gesondert angepaßt werden muß.It is known from the Austrian application AT-A-332006 to allow the pouring stream to flow from a metallurgical vessel into a mold through a shadow tube, which shadow tube is attached to a holder which is fixed in place by means of a ball joint. This attachment allows the shadow tube to be tilted and rotated and moved into and out of the intended working position. With this known device, however, it is not possible to let the shadow pipe take any positions at different distances from the holder or from the ball joint, so that the shadow pipe in the known device can be adapted separately to the respective position of the pouring jet or the pouring of the metallurgical vessel got to.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Schutzvorrichtung der eingangs beschriebenen Art dahingehend auszubilden, daß das Schattenrohr beliebigen Lagen des Gießstrahles folgen, d. h. beliebige Lagen in unterschiedlichen Entfernungen von der Lagerung des das Schattenrohr tragenden Gelenkgestänges einnehmen kann.The invention aims to avoid these disadvantages and difficulties and has the object to provide a protective device of the type described in such a way that the shadow pipe follow any position of the pouring stream, i. H. can take any positions at different distances from the mounting of the linkage supporting the shadow pipe.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Gelenkgestänge ein erstes, sich vertikal erstreckendes Gelenkparallelogramm aufweist, welches mit seinem vertikal angeordneten Steg um eine vertikale Achse drehbar gelagert ist, an dessen Koppel ein das Schattenrohr tragender Ausleger angelenkt ist, der die Schwinge eines zweiten Gelenkviereckes bildet, dessen Steg von einer Schwinge des ersten Gelenkparallelogrammes gebildet ist.This object is achieved in that the joint linkage has a first, vertically extending joint parallelogram, which is rotatably mounted with its vertically arranged web about a vertical axis, on the coupling of which is articulated a boom supporting the shadow tube, which is the rocker arm of a second four-bar linkage forms, the web of which is formed by a rocker of the first joint parallelogram.

Vorteilhaft ist eine Schwinge des ersten Gelenkparallelogrammes über dessen Steg verlängert ausgebildet, wobei auf der Verlängerung ein Gegengewicht angeordnet ist.A rocker of the first articulated parallelogram is advantageously extended over its web, a counterweight being arranged on the extension.

Um ein Hochschwenken des Schattenrohres über ein bestimmtes Maß hinaus zu verhindern, ist vorteilhaft eine Schwinge des ersten Gelenkparallelogrammes über dessen Steg verlängert ausgebildet, und wirkt mit einem am Steg dieses Gelenkparallelogrammes angeordneten Anschlag, der vorzugsweise einstellbar ist, zusammen.In order to prevent the shadow tube from swinging up beyond a certain amount, a rocker of the first articulated parallelogram is advantageously extended over its web, and interacts with a stop arranged on the web of this articulated parallelogram, which is preferably adjustable.

Zweckmäßig ist der Steg des ersten Gelenkparallelogrammes an einem Zwischengefäß einer Stranggießanlage, in welches Gefäß der Gießstrahl fließt, drehbar befestigt.The web of the first articulated parallelogram is expediently rotatably attached to an intermediate vessel of a continuous casting installation, into which vessel the pouring stream flows.

Zwecks leichterer Handhabung weist eine Schwinge des zweiten Gelenkviereckes eine als Betätigungshebel ausgebildete Verlängerung auf.For easier handling, a swing arm of the second four-bar linkage has an extension designed as an actuating lever.

Nach einer bevorzugten Ausführungsform ist das Schattenrohr an einem Zentrieransatz eines eine Ausfließöffnung einer Pfanne abschließenden Schiebers abstützbar und mittels des Gegengewichtes selbsttätig anpreßbar, wobei vorteilhaft das Schattenrohr um seine Längsachse am Ausleger drehbar gelagert ist. Dadurch kann das Schattenrohr, wenn es sich am Schieber abstützt, bei Betätigung des Schiebers unter Beibehaltung seiner Lage relativ zum Schieber dem Schieber folgen, ohne daß eine Verdrehung zwischen Schieber und Schattenrohr erfolgt.According to a preferred embodiment, the shadow tube can be supported on a centering projection of a slide closing an outflow opening of a pan and can be pressed on automatically by means of the counterweight, the shadow tube advantageously being rotatably mounted on the boom about its longitudinal axis. As a result, the shadow tube, if it is supported on the slide, can follow the slide when the slide is actuated while maintaining its position relative to the slide, without twisting between the slide and the shadow tube.

Die Erfindung ist anhand mehrerer in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert, wobei Fig. 1 eine Ansicht auf ein Zwischengefäß einer Stranggießanlage von oben und Fig.-2 eine Seitenansicht gemäß der Linie 11-11 zeigen. Fig. 3 ist eine entlang der Linie 111-111 der Fig. 1 geführte Schnittdarstellung. Fig. 4 veranschaulicht einen Schnitt gemäß der Linie IV-IV, Fig. 5 einen Schnitt gemäß der Linie V-V der Fig. 3. In den Fig. 6 und 7 ist eine weitere Ausführungsform in zu den Fig. 1 und 2 analoger Darstellung gezeigt. Fig. 8 veranschaulicht ein Detail der Aufhängung des Schattenrohres gemäß einer weiteren Variante, die Fig. 9 und 10 Schnitte gemäß den Linien IX-IX und X-X der Fig. 8.The invention is explained in more detail with reference to several exemplary embodiments shown in the drawing, in which Fig. 1 shows a view of an intermediate vessel of a continuous caster from above and Fig. 2 shows a side view along the line 11-11. Fig. 3 is a sectional view taken along the line 111-111 of Fig. 1. FIG. 4 illustrates a section along line IV-IV, FIG. 5 shows a section along line V-V of FIG. 3. FIGS. 6 and 7 show a further embodiment in a representation analogous to FIGS. 1 and 2. FIG. 8 illustrates a detail of the suspension of the shadow pipe according to a further variant, FIGS. 9 and 10 sections according to lines IX-IX and X-X of FIG. 8.

Das mit 1 bezeichnete Zwischengefäß ist in eine in Fig. 1 strichliert dargestellte Zwischengefäßhalterung 2 eingesetzt, an der eine seitliche Konsole 3 angeordnet ist, die eine bis über die Höhe des Zwischengefäßes 1 ragende Säule 4 trägt. An dieser Säule 4 ist ein vertikal ausgerichtetes, erstes Gelenkparallelogramm 5 drehbar gelagert, wobei die Drehachse 6 vertikal gerichtet ist und mit dem Steg 7 des Gelenkparallelogrammes 5 zusammenfällt. Die Koppel 8 dieses Gelenkparallelogrammes ist daher ebenfalls vertikal gerichtet. Die die Schwingen 9, 10 in der Koppel 8 und den Steg 7 verbindenden Gelenkachsen verlaufen horizontal. An der Koppel 8 dieses Gelenkparallelogrammes ist ein Ausleger 11 ebenfalls um eine vertikale Achse 12 drehbar gelagert. An dem Ausleger 11 ist ein U-förmiger Schattenrohrhalter 13 lösbar eingesetzt. Dieser Schattenrohrhalter 13 kann in seiner achsialen Lage mittels eines Sicherungsstiftes 14 gesichert und durch einen am Ausleger 11 achsial verschiebbaren, in eine seitliche Lasche 15 des Schattenrohrhalters 13 einsteckbaren Steckbolzen 16 gegen Verdrehen um seine Achse 17 an dem Ausleger 11 fixiert werden. Ein Sicherungsbolzen 18, der beide Schenkel des U-förmigen Schattenrohrhalters durchsetzt, sichert das Schattenrohr 19 gegen Herausfallen.The intermediate vessel designated 1 is inserted into an intermediate vessel holder 2, shown in dashed lines in FIG. 1, on which a lateral bracket 3 is arranged, which supports a column 4 which projects up to the height of the intermediate vessel 1. A vertically oriented, first joint parallelogram 5 is rotatably mounted on this column 4, the axis of rotation 6 being directed vertically and coinciding with the web 7 of the joint parallelogram 5. The coupling 8 of this joint parallelogram is therefore also directed vertically. The joint axes connecting the rockers 9, 10 in the coupling 8 and the web 7 run horizontally. On the coupling 8 of this articulated parallelogram, a boom 11 is also rotatably mounted about a vertical axis 12. A U-shaped shade tube holder 13 is detachably inserted on the arm 11. This shade tube holder 13 can be secured in its axial position by means of a locking pin 14 and can be fixed against rotation about its axis 17 on the bracket 11 by an axially displaceable on the arm 11, insertable into a lateral tab 15 of the shade tube holder 13. A locking bolt 18, which passes through both legs of the U-shaped shade tube holder, secures the shade tube 19 against falling out.

Der Ausleger 11 bildet eine Schwinge eines weiteren Gelenkviereckes 20, welches vorteilhaft ebenfalls als Gelenkparallelogramm ausgebildet ist. Der Steg dieses zweiten Gelenkparallelogrammes 20 wird von einer Schwinge 9 desThe arm 11 forms a rocker arm of a further four-bar linkage 20, which is advantageously also designed as a parallelogram. The web of this second parallelogram 20 is by a rocker 9 of the

ersten Gelenkparallelogrammes 5 gebildet. Eine als Betätigungshebel ausgebildete weitere Schwinge 21 ist über eine Koppel 22 mit dem Ausleger 11, d. h. der Schwinge des zweiten Gelenkparallelogrammes 20, verbunden. Die Schwinge 9 des ersten Gelenkparallelogrammes 5 ist über den Steg 7 hinaus verlängert ausgebildet ; die Verlängerung 23 dient zur Aufnahme eines Gegengewichtes 24, welches so bemessen ist, daß das Schattenrohr 19 selbsttätig mit einer bestimmten Kraft nach oben gedrückt wird. Die Verlängerung 23 wirkt mit einer am Steg 7 montierten, einen Anschlag bildenden Stellschraube 25 zusammen, durch welche die Bewegung des Schattenrohres nach oben begrenzt ist.first joint parallelogram 5 is formed. A further rocker 21 designed as an actuating lever is connected via a coupling 22 to the boom 11, i. H. the rocker of the second joint parallelogram 20 connected. The rocker 9 of the first joint parallelogram 5 is extended beyond the web 7; The extension 23 serves to receive a counterweight 24, which is dimensioned so that the shadow tube 19 is automatically pushed up with a certain force. The extension 23 interacts with a set screw 25 mounted on the web 7 and forming a stop, by means of which the upward movement of the shadow tube is limited.

Der mit einem Zapfen 26 in die Säule 4 hineinragende Steg 7 ist mittels eines Achsialkugellagers 27 an der Säule gelagert. Um eine leichtere Schwenkbarkeit des Auslegers 11 zu erreichen, weist der Ausleger ebenfalls ein Achsialkugellager 28 auf, mit dem er auf der Koppel 8 des ersten Gelenkparallelogrammes 5 abgestützt ist.The web 7 projecting into the column 4 with a pin 26 is mounted on the column by means of an axial ball bearing 27. In order to make the boom 11 easier to pivot, the boom also has an axial ball bearing 28 with which it is supported on the coupling 8 of the first articulated parallelogram 5.

Wie aus Fig. 2 ersichtlich ist, ist an der Unterseite einer Gießpfanne 29 ein Schieber 30 angeordnet, der mit einem hohlen Zentrieransatz 31 versehen ist, an dem sich das Schattenrohr 19 ausrichtet. Um dieses Ausrichten des Schattenrohres an dem Zentrieransatz 31 des Schiebers zu ermöglichen, paßt das Schattenrohr in die Halterung mit Spiel 32. Besondere Dichtungsmaßnahmen sind nicht erforderlich. Der Zentrieransatz ist an einer die Ausgießöffnung 33 der Pfanne 29 in Schließstellung verdeckenden Schieberplatte 34 angeordnet.As can be seen from FIG. 2, a slide 30 is arranged on the underside of a ladle 29 and is provided with a hollow centering projection 31 on which the shadow pipe 19 is aligned. In order to enable this alignment of the shadow tube on the centering projection 31 of the slide, the shadow tube fits into the holder with play 32. Special sealing measures are not required. The centering projection is arranged on a slide plate 34 which covers the pouring opening 33 of the pan 29 in the closed position.

Gemäß der in Fig. 8 dargestellten Ausführungsform ist das Schattenrohr 19 in der Halterung 13 mittels eines Lagers 35 um seine Längsachse drehbar gelagert, wodurch es auch bei einer Schieberbewegung stets die gleiche Lage gegenüber dem Zentrieransatz 31 einnimmt. Eine Drehung des Schattenrohres 19 gegenüber dem Zentrieransatz 31 um die Achse der Ausgießöffnung 33 der Pfanne (bzw. um die Längsachse des Schattenrohres 19) ist damit ausgeschlossen.According to the embodiment shown in FIG. 8, the shadow pipe 19 is rotatably supported in the holder 13 by means of a bearing 35 about its longitudinal axis, as a result of which it always assumes the same position with respect to the centering projection 31 even when the slide is moved. A rotation of the shadow pipe 19 with respect to the centering projection 31 about the axis of the pouring opening 33 of the pan (or about the longitudinal axis of the shadow pipe 19) is thus excluded.

Wie aus Fig. 1 ersichtlich ist, läßt sich das Schattenrohr 19 in weiten Bereichen verschiedenen Lagen der Pfannenausgießöffnung 33 anpassen. Es kann sowohl um die Achse des Steges 7 des ersten Gelerikparallelogrammes 5 gemäß den Pfeilen 36 verschwenkt als auch um die Achse 12 des Auslegers 11 des ersten Gelenkparallelogrammes 5 mit Hilfe des zweiten Gelenkparallelogrammes 20 in Richtung der Pfeile 37 verschwenkt werden. Zum Zweck des Schattenrohraustausches wird die gesamte Vorrichtung um die Drehachse 6 verschwenkt, nachdem das Schattenrohr durch Absenken außer Eingriff auf dem Zentrieransatz 31 gebracht,. wurde.As can be seen from FIG. 1, the shadow pipe 19 can be adapted to various positions of the ladle pouring opening 33 in wide areas. It can be pivoted both about the axis of the web 7 of the first gel parallelogram 5 according to the arrows 36 and also about the axis 12 of the arm 11 of the first joint parallelogram 5 with the help of the second joint parallelogram 20 in the direction of the arrows 37. For the purpose of replacing the shadow tube, the entire device is pivoted about the axis of rotation 6 after the shadow tube is disengaged from the centering projection 31 by lowering. has been.

Bei der in den Fig. 6 und 7 dargestellten Ausführungsform ist das erste Gelenkparallelogramm 5 direkt am Zwischengefäß 1 an einer seitlichen Konsole 38 desselben montiert.In the embodiment shown in FIGS. 6 and 7, the first articulated parallelogram 5 is mounted directly on the tundish 1 on a side bracket 38 of the same.

Gemäß der in den Fig. 8 bis 10 dargestellten Ausführungsform des Schattenrohrhalters 39 ist das Schattenrohr 19 kardanisch und drehbar gelagert, wodurch sich seine Lage bei Betätigung des Schiebers relativ zum Schieber nicht ändert, d. h. es erfolgt, selbst wenn der Schieber betätigt wird. keine Verdrehung zwischen Schieber und Schattenrohr. Außerdem läßt sich durch die kardanische Lagerung eine genaue Anpassung des konischen Oberteiles 40 des Schattenrohres 19 an den Zentrieransatz 31 des Schiebers erreichen. Das Schattenrohr 19 ist gemäß dieser Variante in einem gegenüber dem Schattenrohrhalter 39 drehbaren Aufnahmeteil 41 eingesetzt und mittels einer lösbaren Manschette 42 an diesem Aufnahmeteil 41 gegen Herausfallen gesichert. Der Aufnahmeteil 41 ruht (drehbar) auf einer ersten Gelenkplatte 43, die um eine Achse 44 gegenüber einer zweiten Gelenkplatte 45 schwenkbar ist. Die zweite Gelenkplatte ist wiederum um eine zur Achse 44 rechtwinkelig gerichtete Achse 46 schwenkbar am Schattenrohrhalter 39-befestigt.According to the embodiment of the shadow tube holder 39 shown in FIGS. 8 to 10, the shadow tube 19 is gimbal-mounted and rotatable, so that its position does not change relative to the slide when the slide is actuated, i. H. it occurs even when the slider is operated. no twisting between slider and shadow pipe. In addition, the cardanic bearing allows the conical upper part 40 of the shadow pipe 19 to be precisely adapted to the centering projection 31 of the slide. According to this variant, the shadow pipe 19 is inserted in a receiving part 41 which is rotatable relative to the shadow pipe holder 39 and is secured against falling out by means of a releasable sleeve 42 on this receiving part 41. The receiving part 41 rests (rotatably) on a first hinge plate 43, which is pivotable about an axis 44 relative to a second hinge plate 45. The second hinge plate is in turn pivotally attached to the shade tube holder 39 about an axis 46 oriented at right angles to the axis 44.

Die Erfindung ist nicht auf die in der Zeichnung dargestellten Ausführungsbeispiele beschränkt, sondern kann in verschiedener Hinsicht modifiziert werden. So ist es beispielsweise möglich, das zweite Gelenkparallelogramm 20 nicht als Gelenkparallelogramm, sondern als beliebig gestaltetes Gelenkviereck auszubilden. Die beschriebene Vorrichtung kann auch für das vom Zwischengefäß in die Kokille reichende Gießrohr Verwendung finden.The invention is not limited to the exemplary embodiments shown in the drawing, but can be modified in various ways. For example, it is possible to design the second joint parallelogram 20 not as a joint parallelogram, but as an arbitrarily designed quadrangle. The device described can also be used for the pouring tube extending from the tundish into the mold.

Claims (8)

1. Protection arrangement for a casting jet emerging from a metallurgical vessel, in particular from a casting ladle (29), comprising a protection tube (19) enveloping the casting jet and fastened to an articulation-rod assembly that is pivotable in any space direction, characterised in that the articulation-rod assembly comprises a first linkage parallelogram (5) extending vertically and mounted so as to be rotatable about a vertical axis (6) with its vertically arranged web (7), on whose coupler (8) an extension arm (11) carrying the protection tube (19) is hinged, forming the oscillating crank of a second four-bar linkage (20) whose web is formed by an oscillating crank (9) of the first linkage parallelogram (5).
2. Arrangement according to claim 1, characterised in that an oscillating crank (9) of the first linkage parallelogram (5) is designed so as to be extended beyond its web (7), a counterweight (24) being arranged on the extension (23).
3. Arrangement according to claim 1 or 2, characterised in that an oscillating crank (9) of the first linkage parallelogram (5) is designed so as to be extended beyond its web (7) and coacts with a stop (25), which preferably is adjustable, arranged on the web (7) of this linkage parallelogram (5).
4. Arrangement according to claims 1 to 3, characterised in that the web (7) of the first linkage parallelogram (5) is rotatably fastened to a tundisch (1) of a continuous casting plant, into which tundish the casting jet flows (Figs. 6 and 7).
5. Arrangement according to claims 1 to 4, characterised in that an oscillating crank (21) of the second fourbar linkage (20) comprises an extension designed as an actuation lever.
6. Arrangement according to claims 2 to 5, characterised in that the protection tube (19) is supportable on a centering shoulder (31) of a slide (30) closing an outflow opening (33) of a ladle (29) and is automatically pressable thereon by means of a counterweight (24).
7. Arrangement according to claim 6, characterised in that the protection tube (19) is mounted so as to be rotatable on the extension arm (11) about its longitudinal axis (Fig. 8).
8. Arrangement according to claim 6 or 7, characterised in that a cardan joint (43 to 46) is provided between the protection tube (19) and the protection-tube holder (39) (Figs. 8 to 10).
EP81890004A 1980-01-25 1981-01-12 Protective device for a casting stream issuing from a metallurgical vessel Expired EP0033309B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0041380A AT364103B (en) 1980-01-25 1980-01-25 PROTECTIVE DEVICE FOR A CASTING BEAM EXITING FROM A METALLURGICAL VESSEL
AT413/80 1980-01-25

Publications (3)

Publication Number Publication Date
EP0033309A2 EP0033309A2 (en) 1981-08-05
EP0033309A3 EP0033309A3 (en) 1981-08-19
EP0033309B1 true EP0033309B1 (en) 1983-06-01

Family

ID=3489964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81890004A Expired EP0033309B1 (en) 1980-01-25 1981-01-12 Protective device for a casting stream issuing from a metallurgical vessel

Country Status (6)

Country Link
US (1) US4402437A (en)
EP (1) EP0033309B1 (en)
JP (1) JPS56139259A (en)
AT (1) AT364103B (en)
CA (1) CA1168020A (en)
DE (1) DE3160366D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011107253A1 (en) * 2010-03-05 2011-09-09 Stopinc Aktiengesellschaft Casting tube mounting, in particular for a sliding closure

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JPS59114258U (en) * 1983-01-25 1984-08-02 住友重機械工業株式会社 Ladle nozzle support device
DE3332186C1 (en) * 1983-09-07 1984-12-13 Didier Werke Ag Device for connecting and replacing pouring pipes
US4550867A (en) * 1983-10-14 1985-11-05 National Steel Corporation Shroud tube manipulating and supporting apparatus
JPS61111649U (en) * 1984-12-25 1986-07-15
AT386777B (en) * 1986-06-03 1988-10-10 Stangl Kurt Dipl Ing Manipulator for attaching a pouring pipe to the pouring spout of a pouring ladle
DE102016119706A1 (en) 2016-10-17 2018-04-19 REINGUSS s.r.o Protective device and method for holding a Gießstrahlschutzrohres
CN108127110B (en) * 2017-02-28 2023-06-09 安徽工业大学 Molten steel transferring device capable of protecting tapping and electric furnace steelmaking system capable of protecting tapping
CN110918956B (en) * 2019-11-22 2021-06-18 常州新武轨道交通新材料有限公司 Hot-metal bottle cover device

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US3376030A (en) * 1965-07-19 1968-04-02 Ingersoll Rand Co Mounting for tapping conduit plug drill
US3963224A (en) * 1975-07-30 1976-06-15 Jones & Laughlin Steel Corporation Gas shroud
FR2328536A1 (en) * 1975-10-24 1977-05-20 Chatillon Commentry Biache For Bottom pour ladle for continuous casting - fitted with pipe to shield molten stream of metal from air during flow into tundish
AT349666B (en) * 1976-12-03 1979-04-25 Stopinc Ag DEVICE FOR REPLACING IRON PIPES
US4218048A (en) * 1978-11-17 1980-08-19 Georgetown Texas Steel Corp. Suspended gas shroud apparatus
US4211390A (en) * 1979-05-07 1980-07-08 Air Products And Chemicals, Inc. Apparatus for shielding molten metal during teeming
US4313596A (en) * 1979-10-29 1982-02-02 Flo-Con Systems, Inc. Shroud support and method for shroud engagement with teeming valve
US4262827A (en) * 1979-12-26 1981-04-21 Bethlehem Steel Corporation Ladle shroud apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011107253A1 (en) * 2010-03-05 2011-09-09 Stopinc Aktiengesellschaft Casting tube mounting, in particular for a sliding closure
US8991663B2 (en) 2010-03-05 2015-03-31 Stopinc Aktiengesellschaft Casting tube mounting, in particular for a sliding closure

Also Published As

Publication number Publication date
DE3160366D1 (en) 1983-07-07
EP0033309A2 (en) 1981-08-05
US4402437A (en) 1983-09-06
AT364103B (en) 1981-09-25
ATA41380A (en) 1981-02-15
EP0033309A3 (en) 1981-08-19
CA1168020A (en) 1984-05-29
JPS56139259A (en) 1981-10-30

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