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EP0423449A2 - Shut-off and/or control element for a metallurgical container - Google Patents

Shut-off and/or control element for a metallurgical container Download PDF

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Publication number
EP0423449A2
EP0423449A2 EP90115261A EP90115261A EP0423449A2 EP 0423449 A2 EP0423449 A2 EP 0423449A2 EP 90115261 A EP90115261 A EP 90115261A EP 90115261 A EP90115261 A EP 90115261A EP 0423449 A2 EP0423449 A2 EP 0423449A2
Authority
EP
European Patent Office
Prior art keywords
openings
gas
pipe
closure
closing
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
EP90115261A
Other languages
German (de)
French (fr)
Other versions
EP0423449A3 (en
EP0423449B1 (en
Inventor
Ullrich Hintzen
Ernst Lührsen
Andreas Schuler
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.)
Didier Werke AG
Original Assignee
Didier Werke 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 Didier Werke AG filed Critical Didier Werke AG
Publication of EP0423449A2 publication Critical patent/EP0423449A2/en
Publication of EP0423449A3 publication Critical patent/EP0423449A3/en
Application granted granted Critical
Publication of EP0423449B1 publication Critical patent/EP0423449B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
    • 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
    • B22D41/14—Closures
    • 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
    • B22D41/14—Closures
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/18—Stopper-rods therefor
    • B22D41/186—Stopper-rods therefor with means for injecting a fluid into the melt

Definitions

  • the invention relates to a closing and / or regulating member for tapping liquid molten metal from a metallurgical vessel with an inner tube which has lateral openings and with an outer tube which also has lateral openings and which has a cylindrical sealing surface on its inner circumference on a cylindrical Sealing surface of the outer circumference of the inner tube is seated, with one tube being stationary and the other tube being movable relative to it.
  • WO 88/04 209 A1 shows a stopper closure, wherein sealing surfaces between a fixed part and a movable part can be flushed with inert gas. The openings in the moving part cannot be flushed through the inert gas inlet.
  • the object of the invention is to propose a closing and / or regulating member of the type mentioned in the introduction, in which the sealing surfaces and the openings can be flushed with inert gas.
  • the above object is achieved in a closing and / or regulating member of the type mentioned in the introduction in that the inner tube is provided with a closure above its openings in the outer tube, in that the space between the closure and the outer tube is a gas distribution chamber for the gas introduced through the outer tube Forms inert gas and that the inert gas passes from the gas distribution chamber between the sealing surfaces and through the openings.
  • the inert gas flows through the openings into the melt. It thereby reduces wear on the edges of the openings. In addition, the inert gas avoids caking on the openings.
  • the inert gas entering the melt supports the separation of impurities from the melt and the homogenization of the melt. It is favorable that the gas flows in countercurrent to the melt entering the openings.
  • the closure is gas-permeable. A portion of the inert gas then flows through the closure into the inner tube. The rest of the inert gas enters between the sealing surfaces. As a result of the gas-permeable closure, inert gas flows through both the openings in the inner tube and in the outer tube.
  • gas channels run in the wall of the outer tube, which open into its openings. This means that the openings are not only flushed by the gas flow that has passed between the sealing surfaces, but also by an additional gas flow. Gas channels can run in the wall of the inner tube, which open into its openings. The gas flow through the openings can thereby be increased.
  • an inner tube 2 made of refractory, ceramic material is attached at the bottom 1 of a metallurgical vessel.
  • the inner tube 2 is closed at its upper end by a closure 3.
  • the closure 3 is formed by a gas-permeable insert.
  • the closure 3 can also be formed in one piece with the inner tube 2 and be impermeable to gas.
  • openings 4 are provided in the wall of the inner tube.
  • An outer tube 5 made of refractory, ceramic material is pushed axially onto the inner tube 2.
  • the outer tube 5 and the inner tube 2 adjoin each other on cylindrical sealing surfaces 6, 7.
  • the outer tube 5 has openings 8. It is axially displaceable relative to the inner tube 2 and / or rotatable about the common longitudinal axis, as a result of which the openings 4, 8 can be adjusted relative to one another to control the melt passage.
  • inert gas such as argon
  • inert gas such as argon
  • melt 11 passes through the openings 8, 4 into the inner tube 2 and flows out of it downwards. In the openings 4, 8, the emerging melt 11 has the gas flowing through it in countercurrent.
  • gas channels 12, 13, 14 can be provided in the wall of the inner tube 2 and / or the wall of the outer tube 5. These are shown in dashed lines in the figure.
  • the gas channels 12 run in the wall of the outer tube 5 from the gas distribution chamber 9 to the openings 8.
  • the gas channels 13 run in the wall of the inner tube 2 from the gas distribution chamber 9 to the openings 4.
  • the gas channels 14 run in the wall of the inner tube 2 from below of the bottom 1 to the openings 4.
  • the outer tube 5 is arranged on the bottom 1 of the metallurgical vessel.
  • the inner tube 2 is inserted into the outer tube 5 from below. It is axially displaceable relative to the outer tube 5 and / or rotatable about the common longitudinal axis.
  • the sealing surfaces 6, 7 and the openings 4, 8 are flushed with inert gas, as described in the exemplary embodiment according to FIG. 1 above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Continuous Casting (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Closures For Containers (AREA)

Abstract

A closing and/or regulating apparatus for tapping molten metal from the interior of the metallurgical vessel includes an inner refractory pipe having extending through a wall thereof at least one opening and an outer refractory pipe fitted over the inner pipe and having extending through a wall thereof at least one opening. Outer and inner surfaces of the inner and outer pipes, respectively, define mating sealing surfaces. One of the pipes is fixedly mounted to a metallurgical vessel, and the other pipe is movable axially and/or rotatably relative to the one pipe to thereby selectively bring the openings to the two pipes relatively into and out of alignment. The inner pipe has adjacent an inner end thereof at a position inwardly of the opening therein a closure closing the interior of the inner pipe. The outer pipe defines therein a space forming a gas distribution chamber at a location confronting the closure. A gas, for example an inert gas, is introduced into the gas distribution chamber such that the gas passes therefrom between the sealing surfaces and into the openings.

Description

Die Erfindung betrifft ein Schließ- und/oder Regelorgan für den Abstich flüssiger Metallschmelze aus einem metallurgischen Gefäß mit einem Innenrohr, das seitliche Durchbrechungen aufweist, und mit einem Außenrohr, das ebenfalls seitliche Durchbrechungen aufweist und das mit einer zylindrischen Dichtfläche an seinem Innenumfang auf einer zylindrischen Dichtfläche des Außenumfangs des Innenrohrs sitzt, wobei das eine Rohr ortsfest und das andere Rohr relativ zu ihm beweglich ist.The invention relates to a closing and / or regulating member for tapping liquid molten metal from a metallurgical vessel with an inner tube which has lateral openings and with an outer tube which also has lateral openings and which has a cylindrical sealing surface on its inner circumference on a cylindrical Sealing surface of the outer circumference of the inner tube is seated, with one tube being stationary and the other tube being movable relative to it.

Ein derartiges Schließ- und/oder Regelorgan ist in der DE- 35 40 202 C1 beschrieben. Dort ist ein Bespülen mit einem Inertgas nicht vorgesehen.Such a locking and / or regulating element is described in DE-35 40 202 C1. There is no provision for purging with an inert gas.

In der WO 88/04 209 A1 ist ein Stopfenverschluß gezeigt, wobei Dichtflächen zwischen einem ortsfesten Teil und einem beweglichen Teil mit Inertgas bespülbar sind. Die Durchbrechungen des beweglichen Teils lassen sich durch die Inertgaseinleitung nicht durchspülen.WO 88/04 209 A1 shows a stopper closure, wherein sealing surfaces between a fixed part and a movable part can be flushed with inert gas. The openings in the moving part cannot be flushed through the inert gas inlet.

Aufgabe der Erfindung ist es, ein Schließ- und/oder Regelorgan der eingangs genannten Art vorzuschlagen, bei dem die Dichtflächen und die Durchbrechungen mit Inertgas bespülbar sind.The object of the invention is to propose a closing and / or regulating member of the type mentioned in the introduction, in which the sealing surfaces and the openings can be flushed with inert gas.

Erfindungsgemäß ist obige Aufgabe bei einem Schließ- und/oder Regelorgan der eingangs genannten Art dadurch gelöst, daß das Innenrohr oberhalb seiner Durchbrechungen innerhalb des Außenrohrs mit einem Abschluß versehen ist, daß der Raum zwischen den Abschluß und dem Außenrohr eine Gasverteilkammer für durch das Außenrohr eingeleitetes Inertgas bildet und daß das Inertgas aus der Gasverteilkammer zwischen den Dichtflächen hindurch und durch die Durchbrechungen tritt.According to the invention, the above object is achieved in a closing and / or regulating member of the type mentioned in the introduction in that the inner tube is provided with a closure above its openings in the outer tube, in that the space between the closure and the outer tube is a gas distribution chamber for the gas introduced through the outer tube Forms inert gas and that the inert gas passes from the gas distribution chamber between the sealing surfaces and through the openings.

Dadurch, daß Inertgas zwischen den Dichtflächen hindurchgeleitet ist, ist dort ein Gaspolster erreicht, das dem Verschleiß der Dichtflächen entgegenwirkt. Durch die Ausbildung der Gasverteilkammer ist gewährleistet, daß das Gas am gesamten Umfang des Innenrohrs gleichmäßig zwischen die Dichtflächen eintritt.Characterized in that inert gas is passed between the sealing surfaces, a gas cushion is achieved there, which counteracts the wear of the sealing surfaces. The design of the gas distribution chamber ensures that the gas enters the entire circumference of the inner tube evenly between the sealing surfaces.

Das Inertgas strömt durch die Durchbrechungen in die Schmelze ab. Es verringert dadurch den Verschleiß der Ränder der Durchbrechungen. Außerdem vermeidet das Inertgas Anbackungen an den Durchbrechungen.The inert gas flows through the openings into the melt. It thereby reduces wear on the edges of the openings. In addition, the inert gas avoids caking on the openings.

Weiterhin unterstützt das in die Schmelze eintretende Inertgas das Abscheiden von Verunreinigungen aus der Schmelze und die Homogenisierung der Schmelze. Günstig dabei ist, daß das Gas im Gegenstrom zu der in die Durchbrechungen eintretenden Schmelze strömt.Furthermore, the inert gas entering the melt supports the separation of impurities from the melt and the homogenization of the melt. It is favorable that the gas flows in countercurrent to the melt entering the openings.

In einer Ausgestaltung der Erfindung ist der Abschluß gasdurchlässig. Es strömt dann ein Teil des Inertgases durch den Abschluß in das Innenrohr. Der restliche Teil des Inertgases tritt zwischen die Dichtflächen ein. Durch den gasdurchlässigen Abschluß ist erreicht, daß sowohl die Durchbrechungen des Innenrohrs als auch die des Außenrohrs von Inertgas durchströmt sind.In one embodiment of the invention, the closure is gas-permeable. A portion of the inert gas then flows through the closure into the inner tube. The rest of the inert gas enters between the sealing surfaces. As a result of the gas-permeable closure, inert gas flows through both the openings in the inner tube and in the outer tube.

In einer Weiterbildung verlaufen in der Wandung des Außenrohrs Gaskanäle, die in dessen Durchbrechungen münden. Damit werden die Durchbrechungen nicht nur von dem zwischen den Dichtf lächen hindurchgetretenen Gasstrom, sondern von einem zusätzlichen Gasstrom durchspült. Es können in der Wandung des Innenrohrs Gaskanäle verlaufen, die in dessen Durchbrechungen münden. Dadurch läßt sich die Gasdurchströmung der Durchbrechungen erhöhen.In a further development, gas channels run in the wall of the outer tube, which open into its openings. This means that the openings are not only flushed by the gas flow that has passed between the sealing surfaces, but also by an additional gas flow. Gas channels can run in the wall of the inner tube, which open into its openings. The gas flow through the openings can thereby be increased.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus der folgenden Beschreibung eines Ausführungsbeispiels. In der Zeichnung zeigen:

  • Figur 1 ein Schließ- und/oder Regelorgan eines metallurgischen Gefäßes schematisch im Schnitt mit ortsfestem Innenrohr und beweglichem Außenrohr, und
  • Figur 2 eine Ausführung mit ortsfestem Außenrohr und beweglichem Innenrohr.
Further advantageous refinements of the invention result from the following description of an exemplary embodiment. The drawing shows:
  • 1 shows a closing and / or regulating member of a metallurgical vessel schematically in section with a stationary inner tube and a movable outer tube, and
  • Figure 2 shows an embodiment with a stationary outer tube and a movable inner tube.

Am Boden 1 eines metallurgischen Gefäßes ist ein Innenrohr 2 aus feuerfestem, keramischem Material befestigt. Das Innenrohr 2 ist an seinem oberen Ende durch einen Abschluß 3 verschlossen. Im Ausführungsbeispiel ist der Abschluß 3 von einem gasdurchlässigen Einsatz gebildet. Der Abschluß 3 kann auch einstückig mit dem Innenrohr 2 ausgebildet und gasundurchlässig sein. Unterhalb des Abschlusses 3 sind in der Wandung des Innenrohrs 2 Durchbrechungen 4 vorgesehen.At the bottom 1 of a metallurgical vessel, an inner tube 2 made of refractory, ceramic material is attached. The inner tube 2 is closed at its upper end by a closure 3. In the exemplary embodiment, the closure 3 is formed by a gas-permeable insert. The closure 3 can also be formed in one piece with the inner tube 2 and be impermeable to gas. Below the closure 3 2 openings 4 are provided in the wall of the inner tube.

Auf das Innenrohr 2 ist ein Außenrohr 5 aus feuerfestem, keramischem Material axial aufgeschoben. Das Außenrohr 5 und das Innenrohr 2 grenzen an zylindrischen Dichtflächen 6, 7 aneinander an. Das Außenrohr 5 weist Durchbrechungen 8 auf. Es ist gegenüber dem Innenrohr 2 axial verschieblich und/oder um die gemeinsame Längsachse drehbar, wodurch die Durchbrechungen 4, 8 zur Steuerung des Schmelzendurchtritts gegeneinander verstellbar sind.An outer tube 5 made of refractory, ceramic material is pushed axially onto the inner tube 2. The outer tube 5 and the inner tube 2 adjoin each other on cylindrical sealing surfaces 6, 7. The outer tube 5 has openings 8. It is axially displaceable relative to the inner tube 2 and / or rotatable about the common longitudinal axis, as a result of which the openings 4, 8 can be adjusted relative to one another to control the melt passage.

Zwischen dem Außenrohr 5 und dem Abschluß 3 besteht eine Gasverteilkammer 9. In diese mündet ein im Außenrohr 5 verlaufender Gaskanal 10.There is a gas distribution chamber 9 between the outer tube 5 and the closure 3. A gas channel 10 running in the outer tube 5 opens into this.

Wird in die Gasverteilkammer 9 Inertgas, wie beispielsweise Argon, eingeleitet, dann strömt dieses in Richtung der Pfeile a zwischen die Dichtflächen 6, 7. Teilweise tritt das Gas in Richtung der Pfeile b durch die Durchbrechungen 8 in die Schmelze 11; teilweise tritt das Gas in Richtung der Pfeile c unten am Außenrohr 5 in die Schmelze 11.If inert gas, such as argon, is introduced into the gas distribution chamber 9, then this flows in the direction of the arrows a between the sealing surfaces 6, 7. In part, the gas passes through the openings 8 into the melt 11 in the direction of the arrows b; the gas partially enters the melt 11 in the direction of the arrows c at the bottom of the outer tube 5.

Ein weiterer Teil des Gases tritt aus der Gasverteilkammer 9 durch den Abschluß 3 hindurch in das Innenrohr 2 ein und strömt in Richtung der Pfeile d durch die Durchbrechungen 4, 8 in die Schmelze 11. Bei der in der Figur dargestellten Offenstellung des Schließ- und/oder Regelorgans tritt Schmelze 11 durch die Durchbrechungen 8, 4 in das Innenrohr 2 und fließt aus diesem nach unten aus. In den Durchbrechungen 4, 8 ist die austretende Schmelze 11 im Gegenstrom von dem Gas durchströmt.Another part of the gas enters from the gas distribution chamber 9 through the closure 3 into the inner tube 2 and flows in the direction of the arrows d through the openings 4, 8 into the melt 11. In the open position of the closing and / or control element, melt 11 passes through the openings 8, 4 into the inner tube 2 and flows out of it downwards. In the openings 4, 8, the emerging melt 11 has the gas flowing through it in countercurrent.

Durch die beschriebenen Gasströmungen ist der Verschleiß der Dichtflächen 6, 7 und der Durchbrechungen 4, 8 vermindert. Außerdem ist Anbackungen der Schmelze 11 in den Durchbrechungen 4, 8 entgegengewirkt.The wear of the sealing surfaces 6, 7 and the openings 4, 8 is reduced by the gas flows described. In addition, caking of the melt 11 in the openings 4, 8 is counteracted.

Um eine gezielte Gasdurchströmung der Durchbrechungen 4, 8 zu verbessern, können in der Wandung des Innenrohrs 2 und/oder der Wandung des Außenrohrs 5 weitere Gaskanäle 12, 13, 14 vorgesehen sein. Diese sind in der Figur strichliert dargestellt. Die Gaskanäle 12 verlaufen in der Wandung des Außenrohrs 5 von der Gasverteilkammer 9 zu den Durchbrechungen 8. Die Gaskanäle 13 verlaufen in der Wandung des Innenrohrs 2 von der Gasverteilkammer 9 zu den Durchbrechungen 4. Die Gaskanäle 14 verlaufen in der Wandung des Innenrohrs 2 von unterhalb des Bodens 1 zu den Durchbrechungen 4.In order to improve a targeted gas flow through the openings 4, 8, further gas channels 12, 13, 14 can be provided in the wall of the inner tube 2 and / or the wall of the outer tube 5. These are shown in dashed lines in the figure. The gas channels 12 run in the wall of the outer tube 5 from the gas distribution chamber 9 to the openings 8. The gas channels 13 run in the wall of the inner tube 2 from the gas distribution chamber 9 to the openings 4. The gas channels 14 run in the wall of the inner tube 2 from below of the bottom 1 to the openings 4.

Beim Ausführungsbeispiel nach Figur 2 ist das Außenrohr 5 am Boden 1 des metallurgischen Gefäßes angeordnet. Das Innenrohr 2 ist in das Außenrohr 5 von unten eingeschoben. Es ist gegenüber dem Außenrohr 5 axial verschieblich und/oder um die gemeinsame Längsachse drehbar.In the embodiment of Figure 2, the outer tube 5 is arranged on the bottom 1 of the metallurgical vessel. The inner tube 2 is inserted into the outer tube 5 from below. It is axially displaceable relative to the outer tube 5 and / or rotatable about the common longitudinal axis.

Innerhalb des Außenrohrs 5 besteht oberhalb des Abschlusses 3 des Innenrohrs 2 die Gasverteilkammer 9.Within the outer tube 5 there is the gas distribution chamber 9 above the end 3 of the inner tube 2.

Die Bespülung der Dichtflächen 6, 7 und der Durchbrechungen 4, 8 mit Inertgas erfolgt ebenso, wie dies beim Ausführungsbeispiel nach Figur 1 oben beschrieben ist.The sealing surfaces 6, 7 and the openings 4, 8 are flushed with inert gas, as described in the exemplary embodiment according to FIG. 1 above.

Claims (5)

1. Schließ- und/oder Regelorgan für den Abstich flüssiger Metallschmelze aus einem metallurgischen Gefäß mit einem Innenrohr, das seitliche Durchbrechungen aufweist, und mit einem Außenrohr, das ebenfalls seitliche Durchbrechungen aufweist und das mit einer zylindrischen Dichtfläche an seinem Innenumfang auf einer zylindrischen Dichtf läche des Außenumfangs des Innenrohrs sitzt, wobei das eine Rohr ortsfest und das andere Rohr relativ zu ihm beweglich ist,
dadurch gekennzeichnet,
daß das Innenrohr (2) oberhalb seiner Durchbrechungen (4) innerhalb des Außenrohrs (5) mit einem Abschluß (3) versehen ist, daß der Raum zwischen dem Abschluß (3) und dem Außenrohr (5) eine Gasverteilkammer (9) für durch das Außenrohr (5) eingeleitetes Inertgas bildet und daß das Inertgas aus der Gasverteilkammer (9) zwischen den Dichtflächen (6, 7) hindurchtritt und durch die Durchbrechungen (8; 4, 8) tritt.1. Closing and / or regulating element for tapping liquid molten metal from a metallurgical vessel with an inner tube that has lateral openings and with an outer tube that also has lateral openings and that has a cylindrical sealing surface on its inner circumference on a cylindrical sealing surface of the outer circumference of the inner tube, one tube being stationary and the other tube being movable relative to it,
characterized,
that the inner tube (2) above its openings (4) inside the outer tube (5) is provided with a closure (3) that the space between the closure (3) and the outer tube (5) is a gas distribution chamber (9) for through Outer tube (5) forms the introduced inert gas and that the inert gas from the gas distribution chamber (9) passes between the sealing surfaces (6, 7) and passes through the openings (8; 4, 8). 2. Schließ- und/oder Regelorgan nach Anspruch 1,
dadurch gekennzeichnet,
daß der Abschluß (3) gasdurchlässig ist.2. closing and / or regulating element according to claim 1,
characterized,
that the closure (3) is gas permeable. 3. Schließ- und/oder Regelorgan nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß in der Wandung des Außenrohrs (5) Gaskanäle (12) verlaufen, die in dessen Durchbrechungen (8) münden.3. closing and / or regulating element according to claim 1 or 2,
characterized,
that in the wall of the outer tube (5) run gas channels (12) which open into the openings (8). 4. Schließ- und/oder Regelorgan nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß in der Wandung des Innenrohrs (2) Gaskanäle (13, 14) verlaufen, die in dessen Durchbrechungen (4) münden.4. closing and / or regulating element according to one of the preceding claims,
characterized,
that in the wall of the inner tube (2) gas channels (13, 14) run, which open into the openings (4). 5. Schließ- und/oder Regelorgan nach Anspruch 4,
dadurch gekennzeichnet,
daß die Gaskanäle (13) von der Gasverteilkammer (9) zu den Durchbrechungen (4) verlaufen.5. closing and / or regulating element according to claim 4,
characterized,
that the gas channels (13) from the gas distribution chamber (9) to the openings (4).
EP90115261A 1989-10-17 1990-08-09 Shut-off and/or control element for a metallurgical container Expired - Lifetime EP0423449B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3934601 1989-10-17
DE3934601A DE3934601C1 (en) 1989-10-17 1989-10-17

Publications (3)

Publication Number Publication Date
EP0423449A2 true EP0423449A2 (en) 1991-04-24
EP0423449A3 EP0423449A3 (en) 1991-12-04
EP0423449B1 EP0423449B1 (en) 1995-12-27

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EP90115261A Expired - Lifetime EP0423449B1 (en) 1989-10-17 1990-08-09 Shut-off and/or control element for a metallurgical container

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US (2) US5058784A (en)
EP (1) EP0423449B1 (en)
JP (1) JPH03133562A (en)
KR (1) KR910007606A (en)
CN (1) CN1051001A (en)
AT (1) ATE132064T1 (en)
BR (1) BR9005151A (en)
CA (1) CA2027767A1 (en)
DE (2) DE3934601C1 (en)
RU (1) RU1831410C (en)
ZA (1) ZA906478B (en)

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US5230813A (en) * 1989-11-28 1993-07-27 Didier-Werke Ag Stator and rotor members for use in apparatus for closing and/or regulating the discharge or tapping of molten metal
DE4442336A1 (en) * 1994-11-29 1996-05-30 Didier Werke Ag Closing and / or regulating element for a metallurgical vessel
KR100388080B1 (en) * 2000-06-02 2003-06-18 남종현 A natural tea for controling hyperlipemia and hepatopathy and a method for manufacturing the same
KR100457710B1 (en) * 2001-08-27 2004-11-18 주식회사 자생당 liquor wine brewage method by means of acanthopanax
KR20020057856A (en) * 2002-04-17 2002-07-12 김대도 Recove drink

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651998A (en) * 1970-09-23 1972-03-28 Metallurg Exoproducts Corp Nozzle for a pouring ladle
EP0196847A2 (en) * 1985-03-26 1986-10-08 British Steel plc Improvements in or relating to outlet valves for melt containing vessels
EP0310296A2 (en) * 1987-10-01 1989-04-05 Foseco International Limited Rotary pouring nozzle for a vessel for holding molten metal
EP0332483A1 (en) * 1988-02-26 1989-09-13 Vesuvius France S.A. Nozzle for assisting orifice,device incorporated therein and method for method for carrying out
EP0361052A2 (en) * 1988-09-29 1990-04-04 Stopinc Aktiengesellschaft Refractory stator-rotor unit for a nozzle gate in a vessel holding molten metal

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Publication number Publication date
ZA906478B (en) 1991-06-26
BR9005151A (en) 1991-09-17
CA2027767A1 (en) 1991-04-18
DE3934601C1 (en) 1990-10-04
US5106060A (en) 1992-04-21
JPH03133562A (en) 1991-06-06
EP0423449A3 (en) 1991-12-04
KR910007606A (en) 1991-05-30
EP0423449B1 (en) 1995-12-27
US5058784A (en) 1991-10-22
CN1051001A (en) 1991-05-01
ATE132064T1 (en) 1996-01-15
DE59010007D1 (en) 1996-02-08
RU1831410C (en) 1993-07-30

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