EP0369147B1 - Sealing for refractory components containing metallic melt - Google Patents

Sealing for refractory components containing metallic melt Download PDF

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Publication number
EP0369147B1
EP0369147B1 EP89118291A EP89118291A EP0369147B1 EP 0369147 B1 EP0369147 B1 EP 0369147B1 EP 89118291 A EP89118291 A EP 89118291A EP 89118291 A EP89118291 A EP 89118291A EP 0369147 B1 EP0369147 B1 EP 0369147B1
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EP
European Patent Office
Prior art keywords
seal
sealing
split spring
spring ring
components
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89118291A
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German (de)
French (fr)
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EP0369147A2 (en
EP0369147A3 (en
Inventor
Raimund Brückner
Hans Rothfuss
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Didier Werke AG
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Didier Werke AG
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Priority to AT89118291T priority Critical patent/ATE94790T1/en
Publication of EP0369147A2 publication Critical patent/EP0369147A2/en
Publication of EP0369147A3 publication Critical patent/EP0369147A3/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
    • B22D41/502—Connection arrangements; Sealing means therefor
    • 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
    • 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

Definitions

  • the invention relates to a seal for refractory, metallic melt leading components, in particular for tubular components used on spouts of metallurgical vessels, which engage in one another in a sealed manner and are individually replaceable.
  • Interlocking metallic melt-guiding components such as a pouring tube, which is connected to the outlet of an outlet closure for metallurgical vessels, are usually sealed by means of a flexible, elastically yielding end face seal.
  • the object of the present invention is to improve the seal on intermeshing, melt-carrying components with simple means with the aim of eliminating the difficulties outlined and, above all, preventing fluid flows in the seal area.
  • the object is achieved according to the invention in that in the sealing area at least on one of the interlocking components at least one in one An annular spring bearing ring groove and an overlap at the open ends is arranged, which rests radially resiliently against the other component.
  • the clearance fit or the clearance between the two components for the flow of media is effectively shut off, so that the melt flow can neither suck in air from the outside nor melt itself can get between the components.
  • the clearance fit can be selected so that the components can easily be mutually adjusted under operating conditions.
  • a dense ceramic material preferably an oxide ceramic material and in particular zirconium oxide, is suitable as the material for the production of the ceramic spring ring.
  • 1 and 2 denote two tubular, interlocking refractory components for conveying metallic melt. Between the two components 1 and 2 there is a clearance fit 3, the clearance between them based on the respective application.
  • the components 1 and 2 are designed to form a releasable refractory seal, possibly with parts 1 and 2 which are movable under operating conditions.
  • an open ceramic spring ring 4 with a radial cross-section in the spring force is arranged in a circumferential ring groove 5 of the inner component 2.
  • the spring ring 4 has a fold-like overlap 6, which is transverse to the ring thickness, with free spaces 7 that compensate for the spring travel, so that the peripheral surface of the spring ring 4 acting as a sealing surface 8 lies sealingly against the inner surface 9 of the outer component 1, as a result of which fluid leaks through the clearance fit 3 do not come about.
  • the sealing surface 8 of the spring ring 4 and the counter-sealing area of the inner surface 9 of the outer component 1 can be finished; the inner surface 9 as far as possible to the insertion end of the component 1 in order to facilitate the joining and detaching of the components 1 and 2.
  • a spring ring 4 is used, similar to a piston ring, which in the relaxed state has open spaces 7 which close proportionally when loaded.
  • the seal according to FIG. 4 is equipped with a spring ring 10 which is closed in the tension-free state and which is supported in an annular groove 5 of the outer component 1 and with its inner sealing surface 11 opposite seals the outer surface 12 of the inner member 2 while the overlapped ends open under load.
  • a combination application of both spring washers 4 and 10 in annular grooves 5 has the seal of two inner components 2 abutting one another on the end face within an outer component 1 according to FIG. 5.
  • One of the spring washers 4 and 10 is arranged on one side of the joint 13 of the two inner components 2 held together by means of an elastic mineral fiber seal 14 and is surrounded by the outer component 1.
  • This has a radial bore 15 between the spring washers 4 and 10 with a fluid connection 16 for supplying, for example, a sealing gas in the region of the clearance 3 between the spring washers 4 and 10.
  • Such seals with an additional fluid connection 16 can be used on melt feeds of horizontal continuous casting plants be required to prevent air from entering the melt stream.
  • the seal of the air fit in the clearance 3 serves the same purpose as shown in FIG. 6 on the cone connection between the lower plate 17 of one of the slide closures (not shown for the sake of simplicity) and a pouring spout 18.
  • the spring ring 19 used there shown enlarged in FIG unclamped state is largely closed, rests in an inner annular groove 20 of the head of the pouring spout 18 and lies with its conical sealing surface 21 on the connecting cone 22 of the lower plate 17, between which opposite flat surfaces of the connecting cone 22 and the pouring tube head, an elastic mineral fiber seal 23 can also be provided.
  • FIG. 8 illustrates an application example of a pouring closure for metallurgical vessels, which has a non-rotatable pouring part 25 arranged vertically in the bottom 24 of the vessel, through which melt 27 flows out via transverse bores 26 from the inside of the vessel as soon as corresponding bores 28 in an outer component which can be adjusted about the axis 29 30 are more or less congruent.
  • This component 30, which is designed as a turned part, is placed over the pouring part 25 in a pot-like manner and carries on the inside in annular grooves 31 spring washers 32 which bear against the peripheral surface 33 of the inner pouring part 25 and shield the clearance fit 3 against a flow of the melt 27.
  • the spring washers 32 serve as a guide for the outer component 30 when the latter is rotated about the axis 29 for the purpose of regulating the melt flow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Gasket Seals (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Ceramic Products (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Abstract

A sealing for interlocking refractory components (1 and 2) containing a metallic melt is improved by the fact that at least one radially acting ceramic spring washer (4) for sealing the cross-section of the clearance fit (3) between the components (1 and 2) is arranged at least on one component in an annular groove (5). <IMAGE> <IMAGE> <IMAGE

Description

Die Erfindung bezieht sich auf eine Dichtung für feuerfeste, metallische Schmelze führende Bauteile, insbesondere für an Ausgüssen metallurgischer Gefäße verwendete rohrförmige Bauteile, die abgedichtet ineinandergreifen und einzeln austauschbar sind.The invention relates to a seal for refractory, metallic melt leading components, in particular for tubular components used on spouts of metallurgical vessels, which engage in one another in a sealed manner and are individually replaceable.

Üblicherweise werden ineinandergreifende, metallische Schmelze führende Bauteile, wie beispielsweise ein Gießrohr, das an den Auslauf eines Auslaufverschlusses für metallurgische Gefäße übergreifend angeschlossen wird, mittels einer flexiblen, elastisch nachgebenden Stirnflächendichtung abgedichtet. Hierbei ist zwischen den beiden konisch oder zylindrisch ineinandergreifenden Bauteilen meistenfalls eine Spielpassung vorhanden, die unter dem Anschlußdruck des Gießrohres an den Auslauf bei Betriebsbedingungen abdichtend wirken soll. Dies gelingt nicht zufriedenstellend, weil die hohem Temperaturwechsel ausgesetzten Bauteile vergleichsweise wenig Anschlußdruck aushalten und sich verziehen, so daß über die Spielpassung und die Stirnflächendichtung schon bald Luft in den Schmelzestrom gelangt und beispielsweise durchfließender Stahl reoxidiert wird. Ähnliche Probleme gibt es an den abgedichteten Stoßstellen von feuerfesten Rohrbauteilen, die Schmelze vom Ausguß eines metallurgischen Gefäßes zur Düse einer Horizontalstranggießanlage leiten. Ferner ist es bei Ausgußverschlüssen, bei denen der Schmelzefluß mittels Durchbrechungen zweier konzentrisch und gegeneinander beweglich angeordneten, in die Schmelze des Gefäßes hineinragenden Rohren regelbar ist, problematisch, die Rohre mit Hilfe einer Spielpassung wirksam so gegeneinander abzudichten, daß eines oder beide Rohre ohne Komplikationen längs- und/oder drehverstellt werden können. Einerseits soll die Passung das Eindringen von Schmelze zwischen die Rohre verhindern, andererseits soll es aber auch kein Klemmen der Rohre bei unterschiedlichen Wärmedehnungen geben.Interlocking metallic melt-guiding components, such as a pouring tube, which is connected to the outlet of an outlet closure for metallurgical vessels, are usually sealed by means of a flexible, elastically yielding end face seal. There is usually a clearance fit between the two conically or cylindrically interlocking components, which is to act as a seal under the connection pressure of the pouring tube to the outlet under operating conditions. This is not satisfactory because the components exposed to high temperature changes have comparatively little connection pressure endure and warp, so that air soon gets into the melt stream via the clearance fit and the end face seal and steel that flows through, for example, is reoxidized. Similar problems exist at the sealed joints of refractory pipe components that conduct melt from the pouring of a metallurgical vessel to the nozzle of a horizontal continuous caster. Furthermore, with pouring closures in which the melt flow can be regulated by perforations of two concentrically arranged and mutually movable tubes projecting into the melt of the vessel, it is problematic to effectively seal the tubes against one another with the aid of a clearance fit such that one or both tubes are longitudinal along without complications - And / or can be rotated. On the one hand, the fit is intended to prevent melt from penetrating between the pipes, but on the other hand, there should also be no jamming of the pipes with different thermal expansions.

Aufgabe vorliegender Erfindung ist es, mit einfachen Mitteln die Dichtung an ineinandergreifenden, schmelzeführenden Bauteilen zu verbessern mit dem Ziel, die aufgezeigten Schwierigkeiten zu beheben und vor allem Fluid-Strömungen im Dichtungsbereich zu verhindern.The object of the present invention is to improve the seal on intermeshing, melt-carrying components with simple means with the aim of eliminating the difficulties outlined and, above all, preventing fluid flows in the seal area.

Die gestellte Aufgabe wird gemäß der Erfindung dadurch gelöst, daß im Dichtungsbereich wenigstens an einem der ineinandergreifenden Bauteile mindestens ein in einer Ringnut lagernder und an den offenen Enden eine Überlappung aufweisender Federring angeordnet ist, der radial federnd am anderen Bauteil dichtend anliegt. Dadurch wird die Spielpassung bzw. der Spielraum zwischen beiden Bauteilen für den Durchfluß von Medien wirksam abgesperrt, so daß der Schmelzestrom weder Luft von außen ansaugen noch Schmelze selbst zwischen die Bauteile gelangen kann. Darüberhinaus kann im Bedarfsfalle die Spielpassung so gewählt werden, daß sich die Bauteile unter Betriebsbedingungen leicht gegenseitig verstellen lassen.The object is achieved according to the invention in that in the sealing area at least on one of the interlocking components at least one in one An annular spring bearing ring groove and an overlap at the open ends is arranged, which rests radially resiliently against the other component. As a result, the clearance fit or the clearance between the two components for the flow of media is effectively shut off, so that the melt flow can neither suck in air from the outside nor melt itself can get between the components. In addition, if necessary, the clearance fit can be selected so that the components can easily be mutually adjusted under operating conditions.

In jedem Fall ist es in näherer Ausbildung der Dichtung zweckmäßig, der Ringnut und dem Federring einen rechteckigen Querschnitt zu geben und die Überlappung an den offenen Enden falzartig auszubilden. Diese Ringkonstruktion hat an sich schon hervorragende Abdichtwirkung, die durch Anordnung mehrerer Federringe im Abstand voneinander gesteigert werden kann. Gegebenenfalls ist es auch vorteilhaft, zwischen zwei mit Abstand angeordneten Federringen einen Anschluß zum Einführen eines dichtenden und/oder kühlenden Mediums, beispielsweise eines mit erhöhtem Druck eingeführtes Inertgases vorzusehen, was die Effizienz der Dichtung weiter erhöht. Hierzu vermag auch der Vorschlag beizutragen, die Dichtungsfläche des Federringes und die korrespondierende Dichtungsfläche des Bauteils feinzubearbeiten.In any case, in a closer design of the seal, it is expedient to give the annular groove and the spring ring a rectangular cross section and to form the overlap at the open ends in a fold-like manner. This ring construction itself has an excellent sealing effect, which can be increased by arranging several spring rings at a distance from one another. It may also be advantageous to provide a connection for introducing a sealing and / or cooling medium, for example an inert gas introduced with increased pressure, between two spring rings arranged at a distance, which further increases the efficiency of the seal. The suggestion to finish the sealing surface of the spring ring and the corresponding sealing surface of the component can also contribute to this.

Als Material für die Herstellung des keramischen Federringes bietet sich ein dichtes keramisches Material, vorzugsweise ein oxidkeramisches Material und insbesondere Zirkonoxid an.A dense ceramic material, preferably an oxide ceramic material and in particular zirconium oxide, is suitable as the material for the production of the ceramic spring ring.

Die Erfindung ist nachstehend an mehreren Ausführungsbeispielen anhand der schematischen Zeichnung erläutert. Darin zeigen

Fig. 1
eine Vertikalschnittdarstellung mit zwei ineinandergreifenden feuerfesten Bauteilen mit einer Dichtung in einem ersten Ausführungsbeispiel,
Fig. 2
die Seitenansicht des Federringes nach Figur 1,
Fig. 3
die Draufsicht auf Figur 2,
Fig. 4 und 5
weitere Ausführungen der Federringdichtung in ähnlicher Darstellungsweise wie in Figur 1,
Fig. 6
ein weiteres Anwendungsbeispiel der Federringdichtung, im Schnitt,
Fig. 7
den Federring nach Fig. 6 in größerem Maßstab, und
Fig. 8
ein weiteres Anwendungsbeispiel, ebenfalls in geschnittener Darstellung.
The invention is explained below using several exemplary embodiments with reference to the schematic drawing. Show in it
Fig. 1
2 shows a vertical sectional view with two interlocking refractory components with a seal in a first exemplary embodiment,
Fig. 2
the side view of the spring ring according to Figure 1,
Fig. 3
the top view of Figure 2,
4 and 5
further designs of the spring ring seal in a representation similar to that in FIG. 1,
Fig. 6
another application example of the spring ring seal, in section,
Fig. 7
6 on a larger scale, and
Fig. 8
another application example, also in a sectional view.

In der Zeichnung sind mit 1 und 2 zwei rohrförmige, ineinandergreifende feuerfeste Bauteile zum Befördern metallischer Schmelze bezeichnet. Zwischen beiden Bauteilen 1 und 2 ist eine Spielpassung 3 vorhanden, deren Spiel sich an dem jeweiligen Anwendungsfall orientiert. Die Bauteile 1 und 2 sind zu einer lösbaren feuerfesten Dichtung, gegebenfalls mit unter Betriebsbedingungen beweglichen Teilen 1 und 2, ausgebildet.In the drawing, 1 and 2 denote two tubular, interlocking refractory components for conveying metallic melt. Between the two components 1 and 2 there is a clearance fit 3, the clearance between them based on the respective application. The components 1 and 2 are designed to form a releasable refractory seal, possibly with parts 1 and 2 which are movable under operating conditions.

Gemäß der in Fig. 1 bis 3 gezeigten Dichtung ist zwecks Abdichtung der Spielpassung 3 nach außerhalb ein offener, in der Federkraft radial wirkender, keramischer Federring 4 rechteckigen Querschnitts in einer Umfangsringnut 5 des inneren Bauteils 2 angeordnet. An den offenen Enden hat der Federring 4 eine zur Ringdicke quere falzartige Überlappung 6 mit den Federweg kompensierenden Freiräumen 7, so daß die als Dichtungsfläche 8 wirkende Umfangsfläche des Federringes 4 an der Innenfläche 9 des äußeren Bauteils 1 abdichtend anliegt, wodurch Fluidleckagen durch die Spielpassung 3 nicht zustande kommen. Zur besseren Dichtungswirkung können dabei die Dichtungsfläche 8 des Federringes 4 und der Gegendichtungsbereich der Innenfläche 9 des äußeren Bauteils 1 feinbearbeitet sein; die Innenfläche 9 möglichst bis zum Einführungsende des Bauteils 1, um das Zusammenfügen und Lösen der Bauteile 1 und 2 zu erleichtern.According to the seal shown in FIGS. 1 to 3, for the purpose of sealing the clearance fit 3 to the outside, an open ceramic spring ring 4 with a radial cross-section in the spring force is arranged in a circumferential ring groove 5 of the inner component 2. At the open ends, the spring ring 4 has a fold-like overlap 6, which is transverse to the ring thickness, with free spaces 7 that compensate for the spring travel, so that the peripheral surface of the spring ring 4 acting as a sealing surface 8 lies sealingly against the inner surface 9 of the outer component 1, as a result of which fluid leaks through the clearance fit 3 do not come about. For a better sealing effect, the sealing surface 8 of the spring ring 4 and the counter-sealing area of the inner surface 9 of the outer component 1 can be finished; the inner surface 9 as far as possible to the insertion end of the component 1 in order to facilitate the joining and detaching of the components 1 and 2.

Bei der Dichtung nach Fig. 1 bis 3 ist, ähnlich einem Kolbenring, ein Federring 4 verwendet, der in entspanntem Zustand geöffnete Freiräume 7 hat, die sich bei Belastung proportional schließen.1 to 3, a spring ring 4 is used, similar to a piston ring, which in the relaxed state has open spaces 7 which close proportionally when loaded.

Demgegenüber ist die Dichtung nach Figur 4 mit einem im spannungsfreien Zustand geschlossenen Federring 10 ausgestattet, der in einer Ringnut 5 des äußeren Bauteils 1 lagert und mit seiner inneren Dichtungsfläche 11 gegenüber der Außenfläche 12 des inneren Bauteils 2 abdichtet, während sich unter Belastung die überlappten Enden öffnen.In contrast, the seal according to FIG. 4 is equipped with a spring ring 10 which is closed in the tension-free state and which is supported in an annular groove 5 of the outer component 1 and with its inner sealing surface 11 opposite seals the outer surface 12 of the inner member 2 while the overlapped ends open under load.

Eine Kombinationsanwendung beider Federringe 4 und 10 in Ringnuten 5 weist die Dichtung von zwei, stirnseitig aneinanderstoßenden inneren Bauteilen 2 innerhalb eines äußeren Bauteiles 1 nach Figur 5 auf. Dabei ist je einer der Federringe 4 und 10 an einer Seite der Stoßstelle 13 der zwei, unter Vermittlung einer elastischen Mineralfaserdichtung 14 zusammengehaltenen inneren Bauteile 2 angeordnet und von dem äußeren Bauteil 1 umgeben. Dieser hat zwischen den Federringen 4 und 10 eine radiale Bohrung 15 mit einem Fluid-Anschluß 16 zum Zuführen beispielsweise eines abdichtenden Gases in den Bereich der Spielpassung 3 zwischen den Federringen 4 und 10. Derartige Dichtungen mit zusätzlichem Fluid-Anschluß 16 können an Schmelzezuführungen von Horizontalstranggießanlagen erforderlich sein, um dem Eindringen von Luft in den Schmelzestrom vorzubeugen.A combination application of both spring washers 4 and 10 in annular grooves 5 has the seal of two inner components 2 abutting one another on the end face within an outer component 1 according to FIG. 5. One of the spring washers 4 and 10 is arranged on one side of the joint 13 of the two inner components 2 held together by means of an elastic mineral fiber seal 14 and is surrounded by the outer component 1. This has a radial bore 15 between the spring washers 4 and 10 with a fluid connection 16 for supplying, for example, a sealing gas in the region of the clearance 3 between the spring washers 4 and 10. Such seals with an additional fluid connection 16 can be used on melt feeds of horizontal continuous casting plants be required to prevent air from entering the melt stream.

Dem gleichen Zweck der Luftabsperrung in der Spielpassung 3 dient die in Fig. 6 gezeigte Dichtung an der Konusverbindung zwischen der Unterplatte 17 eines der einfachheithalber nicht dargestellten Schieberverschlusses und einem Ausgußrohr 18. Der dort angewendete, in Fig. 7 vergrößert dargestellte Federring 19, der im ungespannten Zustand weitgehend geschlossen ist, lagert in einer inneren Ringnut 20 des Kopfes des Ausgußrohres 18 und liegt mit seiner konischen Dichtungsfläche 21 am Anschlußkonus 22 der Unterplatte 17 an, wobei zwischen den sich gegenüberstehenden Planflächen des Anschlußkonus 22 und des Ausgußrohrkopfes ebenfalls eine elastische Mineralfaserdichtung 23 vorgesehen sein kann.The seal of the air fit in the clearance 3 serves the same purpose as shown in FIG. 6 on the cone connection between the lower plate 17 of one of the slide closures (not shown for the sake of simplicity) and a pouring spout 18. The spring ring 19 used there, shown enlarged in FIG unclamped state is largely closed, rests in an inner annular groove 20 of the head of the pouring spout 18 and lies with its conical sealing surface 21 on the connecting cone 22 of the lower plate 17, between which opposite flat surfaces of the connecting cone 22 and the pouring tube head, an elastic mineral fiber seal 23 can also be provided.

Indessen veranschaulicht Figur 8 ein Anwendungsbeispiel an einem Ausgußverschluß für metallurgische Gefäße, der einen im Gefäßboden 24 vertikal angeordneten drehfesten Ausgußteil 25 hat, durch den über Querbohrungen 26 Schmelze 27 vom Gefäßinnern ausfließt, sobald entsprechende Bohrungen 28 in einem äußeren, um die Achse 29 verstellbaren Bauteile 30 mehr oder weniger deckungsgleich sind. Dieser als Drehteil ausgebildete Bauteil 30 ist topfartig über den Ausgußteil 25 gestülpt und trägt innenseitig in Ringnuten 31 Federringe 32, die gegen die Umfangsfläche 33 des inneren Ausgußteils 25 abdichtend anliegen und die Spielpassung 3 gegen einen Durchfluß der Schmelze 27 abschirmen. Gleichzeitig dienen die Federringe 32 dem äußeren Bauteil 30 als Führung, wenn dieser über die Achse 29 zwecks Regulation des Schmelzeabflusses gedreht wird.In the meantime, FIG. 8 illustrates an application example of a pouring closure for metallurgical vessels, which has a non-rotatable pouring part 25 arranged vertically in the bottom 24 of the vessel, through which melt 27 flows out via transverse bores 26 from the inside of the vessel as soon as corresponding bores 28 in an outer component which can be adjusted about the axis 29 30 are more or less congruent. This component 30, which is designed as a turned part, is placed over the pouring part 25 in a pot-like manner and carries on the inside in annular grooves 31 spring washers 32 which bear against the peripheral surface 33 of the inner pouring part 25 and shield the clearance fit 3 against a flow of the melt 27. At the same time, the spring washers 32 serve as a guide for the outer component 30 when the latter is rotated about the axis 29 for the purpose of regulating the melt flow.

Claims (6)

  1. Seal for refractory members which guide metallic melt, particularly for tubular members used at the outlet of metallurgical vessels, and which sealingly engage within one another and are individually replaceable, characterised in that arranged in the sealing region on at least one member (1,2,17,18,25,30) there is at least one split spring ring (4,10,19,32) which is supported in an annular groove (5,20,31) and has an overlap (6) at the open ends and which radially resiliently sealingly engages the other member.
  2. Seal as claimed in claim 1, characterised in that the annular groove (5,20,31) and the split spring ring (4,10,19,32) have a rectangular cross-section and the overlap is of rabbet-like construction.
  3. Seal as claimed in claim 1 and 2, characterised in that a plurality of split spring rings (4,10,32) are arranged spaced from one another.
  4. Seal as claimed in claim 3, characterised in that a connection (16) for introducing a sealing and/or cooling medium is provided between two spaced split spring rings (4,10).
  5. Seals as claimed in claims 1 to 4, characterised in that the sealing surface (8) on the split spring ring (4) and the corresponding sealing surface (9) on the member (1 or 2) are precision machined.
  6. Seal as claimed in the preceding claims, characterised in that the split spring ring (4,10,19,32) consists of dense ceramic material, in particular zirconium oxide.
EP89118291A 1988-11-17 1989-10-03 Sealing for refractory components containing metallic melt Expired - Lifetime EP0369147B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118291T ATE94790T1 (en) 1988-11-17 1989-10-03 GASKET FOR REFRACTORY METALLIC METAL CONDUCTING COMPONENTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838903A DE3838903A1 (en) 1988-11-17 1988-11-17 GASKET FOR FIRE-RESISTANT, METAL MELTING LEADING COMPONENTS
DE3838903 1988-11-17

Publications (3)

Publication Number Publication Date
EP0369147A2 EP0369147A2 (en) 1990-05-23
EP0369147A3 EP0369147A3 (en) 1991-12-04
EP0369147B1 true EP0369147B1 (en) 1993-09-22

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EP89118291A Expired - Lifetime EP0369147B1 (en) 1988-11-17 1989-10-03 Sealing for refractory components containing metallic melt

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US (1) US5106106A (en)
EP (1) EP0369147B1 (en)
JP (1) JPH02160166A (en)
KR (1) KR970005375B1 (en)
CN (1) CN1043100A (en)
AT (1) ATE94790T1 (en)
BR (1) BR8905800A (en)
CA (1) CA2003093A1 (en)
DE (2) DE3838903A1 (en)
ES (1) ES2046425T3 (en)
ZA (1) ZA897932B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8907893A (en) * 1989-06-01 1992-04-28 Shinagawa Refractories Co CAST METAL DISCHARGE REGULATOR
DE4024520A1 (en) * 1990-08-02 1992-02-06 Didier Werke Ag CONNECTION BETWEEN THE OUTLET OF A METALLURGICAL VESSEL AND A PROTECTIVE PIPE OR DIP SPOUT
DE4140300A1 (en) * 1991-12-06 1993-06-09 Didier-Werke Ag, 6200 Wiesbaden, De GASKET DEVICE FOR METALLIC MELTING LEADING FIRE-RESISTANT COMPONENTS
DE4415551A1 (en) * 1994-05-03 1995-11-09 Didier Werke Ag Clamping device for a ceramic closure plate
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DE3838903A1 (en) 1990-05-23
KR900007519A (en) 1990-06-01
DE58905680D1 (en) 1993-10-28
BR8905800A (en) 1990-06-12
ES2046425T3 (en) 1994-02-01
EP0369147A2 (en) 1990-05-23
CA2003093A1 (en) 1990-05-17
JPH02160166A (en) 1990-06-20
EP0369147A3 (en) 1991-12-04
KR970005375B1 (en) 1997-04-15
ATE94790T1 (en) 1993-10-15
ZA897932B (en) 1990-07-25
CN1043100A (en) 1990-06-20
US5106106A (en) 1992-04-21

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