EP3587002A1 - Sliding closure for a metallurgical vessel, preferably a distribution container for a continuous casting plant - Google Patents

Sliding closure for a metallurgical vessel, preferably a distribution container for a continuous casting plant Download PDF

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Publication number
EP3587002A1
EP3587002A1 EP18179932.1A EP18179932A EP3587002A1 EP 3587002 A1 EP3587002 A1 EP 3587002A1 EP 18179932 A EP18179932 A EP 18179932A EP 3587002 A1 EP3587002 A1 EP 3587002A1
Authority
EP
European Patent Office
Prior art keywords
housing
closure
sliding closure
plate
sliding
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
EP18179932.1A
Other languages
German (de)
French (fr)
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EP3587002B1 (en
Inventor
Beat HEINRICH
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.)
Refractory Intellectual Property GmbH and Co KG
Original Assignee
Refractory Intellectual Property GmbH and Co KG
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
Priority to EP18179932.1A priority Critical patent/EP3587002B1/en
Application filed by Refractory Intellectual Property GmbH and Co KG filed Critical Refractory Intellectual Property GmbH and Co KG
Priority to CA3100704A priority patent/CA3100704A1/en
Priority to US17/255,752 priority patent/US11654480B2/en
Priority to BR112020023507-5A priority patent/BR112020023507A2/en
Priority to KR1020217002081A priority patent/KR20210024577A/en
Priority to MX2020011851A priority patent/MX2020011851A/en
Priority to UAA202008233A priority patent/UA127927C2/en
Priority to CN201980042658.XA priority patent/CN112334251B/en
Priority to PCT/EP2019/060299 priority patent/WO2020001825A1/en
Priority to TW108116429A priority patent/TW202000343A/en
Publication of EP3587002A1 publication Critical patent/EP3587002A1/en
Priority to ZA2020/06813A priority patent/ZA202006813B/en
Application granted granted Critical
Publication of EP3587002B1 publication Critical patent/EP3587002B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/40—Means for pressing the plates together
    • 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
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate
    • 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
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/34—Supporting, fixing or centering means therefor

Definitions

  • the invention relates to a sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting plant, according to the preamble of claim 1.
  • Sliding locks of this type are, for example, from the publication EP 0 891 829 previously known. They are characterized by that with them the throttling or the closing of the spout is brought about by the longitudinal movement of the slide plate. They thus serve in particular as an actuator for a controlled pouring of the amount of melt from the metallurgical vessel.
  • the plate tension is set in such a way that it ensures both the free movement of the slide lock and the necessary tightness of the slide lock against air intake.
  • the bracing of the slats is exposed to additional loads during operation, which results primarily from the thermal expansion of the refractory panels.
  • the invention has for its object to provide a sliding closure of the type mentioned, which optimally absorbs the operational stresses of the plate bracing due to the thermal expansion of the closure plates and / or the expansion or lowering of the upper inner sleeve.
  • this first compensation unit with spring arrangements for tightening the closing plates against each other as well as this second compensation unit with spring arrangements for tightening the closing plates against the upper inner sleeve with an additional insert frame that is adjustable in the housing and can be pressed against the lower closing plate, an optimal absorption of the refractory expansion can be achieved.
  • the invention provides that the spring arrangement of the first compensation unit is composed of disc springs, the pretensioning of which can preferably be adjusted with the aid of a stroke limit stop of the fastening screws.
  • the plate bracing can thus be adapted to a wide expansion range of the refractory parts, which results from thermal reasons or from manufacturing-related scattering of the refractory closing plate thicknesses.
  • the initial preload of the springs can also be set precisely and repeatably.
  • the plate springs transmit the spring stroke via pivot pins, the guides of which are provided with inserts. This minimizes wear on these parts.
  • the invention further provides that the insert frame of the second compensation unit is fastened on the underside of the housing by means of fastening screws arranged in pairs on both sides of the spout with disc springs inserted between its screw head and the insert frame, which form the spring arrangement of the second compensation unit. In this way, uniform loading of the insert frame and thus of the lower closure plate can be achieved with structurally simple means.
  • a sealing element comprising the spout between the latter and the housing, which is preferably inserted in a groove in the housing and / or in the insert frame.
  • the sliding closure is advantageously provided with an exchangeable pouring tube which is pressed against the lower closure plate by means of spring-loaded pressing elements.
  • the pressing elements are expediently arranged in such a way that they are effective independently of the two compensation units of the sliding closure. This means that they remain functional in all operating phases, both with and without a pouring tube.
  • the sliding lock after Fig. 1 can be mounted on the spout of a metallurgical vessel.
  • the vessel is preferably designed as a distributor vessel of a continuous casting plant, the sliding closure serving to regulate the amount of melt fed into the continuous casting mold during the casting process.
  • a pouring tube 3 arranged on the underside of the sliding closure enables the molten metal to be poured into the mold in a concealed manner.
  • this sliding closure could also be used on a pan, a converter rack or the like.
  • the sliding lock after 1 and 2 comprises a housing 4 with a seal 4 ′ arranged all around on its upper end face, so that it is sealed on the top of the vessel in the assembled state.
  • Fixed refractory closure plates 5, 6 and a slide plate 8 which can be moved back and forth between them by a drive 7 can be used in the housing 4, the longitudinal movement of which causes the spout 9 to be opened, throttled or closed.
  • the upper closure plate 5 is arranged in a cover 11 of the housing 4 which is pivotably mounted about an axis 10, while the lower closure plate 6 is fixed in an insert frame 25 of the housing 4 and the movable closure plate 8 is clamped in a metal frame 12 coupled to the drive 7 ,
  • the pouring tube 3 is pressed against the lower closure plate 6 with spring-loaded rocker arms 33.
  • the housing 4 has protruding supports 13 on the upper side, which in the operating state are placed against the outer steel jacket of the distribution vessel 2.
  • a spring arrangement 23 has a lower part 16 guided in the housing 4 with a screw head 17 and a transverse bolt 18 about which a pivot bolt 20 provided with thread 19 can be pivoted, the latter being guided in a recess 21 in the cover 11 and in a nut 22 is screwed in above the cover.
  • the nuts 22 can be loosened and the pivot bolts 20 can be pivoted out of the recesses 21 in the cover.
  • the pivot bolts 20 are provided with a stroke limit stop 20a, with which the initial preload of the plate springs 23 acting on tension can be adjusted precisely and repeatably.
  • the nuts 22 of the fastening screws are assigned inserts 24 in the cover 11, which minimize wear due to the frequent assembly and disassembly of the screw connections during operation.
  • the nuts 22 are screwed onto the pivot pin 20 to such an extent that the closure plates of the slide closure located between the insert frame 25 and the cover 11 are braced against one another with the respectively provided contact pressure.
  • This contact pressure is dimensioned such that it ensures the trouble-free displacement of the slide plate 8 during operation with full metal or gas tightness of the slide closure to the outside.
  • the refractory closure plates 5, 6, 8 experience a scattering mechanical expansion of up to 3 millimeters as a result of the heating or their manufacturing tolerances, as a result of which the plate tension is subjected to an additional load.
  • this is compensated for by a first compensation unit I, in that the plate springs 23 'of the spring arrangement 23 yield more or less as a result of the additional load. Due to the paired arrangement of the fastening screws 15a to 15d on both sides of the spout 1 the load compensation is distributed very evenly over the closing plates.
  • an insert frame 25 with a spring arrangement 30 for bracing the closure plates 5, 6, 8 against the upper inner sleeve 1 of the spout is arranged on the underside of the housing 4.
  • This additional insert frame 25 is fastened to the housing 4 with fastening screws 26 arranged in pairs on both sides of the spout.
  • the spring arrangement 30 in turn consists of disc springs 30 which are inserted between the screw head 28 of the fastening screws 26 and the insert frame 25 and have the function of pressing the insert frame against the lower closure plate 6 resting on it and thus the three closure plates 5, 6, 8 together to be braced against the upper inner sleeve 1 of the spout.
  • this second compensation unit II which is formed according to the invention, when the inner sleeve 1 is expanded or lowered, the additional load caused thereby is compensated by the plate springs 30 yielding more or less as a result of this load. It is advantageous if these disc springs 30 are manufactured in such a way that they are provided with a steep characteristic curve with respect to their stroke path in relation to the spring force, so that they cause a relatively high change in force with little stroke. This is matched to the corresponding characteristic curves of the plate springs 23 'of the compensation unit I, so that there is always an optimal tension. It is to be avoided that depending on the position of the displaceable closure plate 8, the closure plates could be tilted, which could primarily occur due to an external force effect through the pouring tube.
  • a sealing element 31 comprising the latter is approximately half in the groove 4 in the groove 4 and approximately half in the insert frame 25. This achieves a labyrinth effect which additionally improves the tightness.
  • the groove could also be formed only in the housing or in the insert frame.
  • Fig. 6 shows schematically the arrangement of the two compensation units I and II in the sliding closure.
  • the first compensation unit I is formed by the spring arrangements 23 acting on the tension between the cover 11 and the housing 4 for resilient bracing of the closure plates 5, 6, 8
  • the second compensation unit II is formed by the spring arrangements 30 acting on the pressure between the insert frame 25 and the Housing 4 for clamping the closure plates 5, 6, 8 against the inner sleeve 1 is effective.
  • These compensation units can be set independently of one another and are also effective independently of one another, so that they can perform their function both individually and in combination with one another. As a result, they protect the refractory parts of the sliding closure from overstressing, which can result from the thermal expansion and from manufacturing-related scattering of the refractory closure plate thicknesses and / or the upper inner sleeve, the inner sleeve also being able to lower during operation.
  • a clamping device 34 is chosen so that its arrangement in the housing 4 does not affect the function of the compensation units I and II.
  • the clamping device 34 is composed of a clamping jaw 38 adjustable in the metal frame 12 against the closing plate 8, two adjusting elements 35, 36 arranged on both sides of the central axis M of the slide plate 8 and a threaded spindle 37 bearing the latter together.
  • the threaded spindle 37 is rotatably mounted transversely to the central axis M in the metal frame 12 and provided with opposing threaded sections.
  • this threaded spindle 37 By manual rotation of this threaded spindle 37, the adjusting elements 35, 36 are adjusted symmetrically to one another outwards or inwards and by corresponding wedge surfaces 35 ', 36' in the adjusting elements 35, 36 or the clamping jaw 38, the latter is pressed against the closing plate 8, so that A self-locking wedge is created so that it does not come loose in the operating state.

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

Abstract

Die Erfindung betrifft einen Schiebeverschluss für ein metallurgisches Gefäss, mit zwei Kompensationseinheiten I und II zum Ausgleichen von Überlastungen, die sich aus der thermischen Ausdehnung und aus herstellungsbedingten Streuungen der feuerfesten Verschlussplattendicken und/oder der oberen Innenhülse ergeben können, wobei sich die Innenhülse im Betrieb auch absenken kann. Die Kompensationseinheit I besteht aus einer Federanordnung (23) mit wegschwenkbaren Befestigungsschrauben (15a, 15b) zwischen dem Gehäuse (4) und einem Deckel (11) des Gehäuses. Die Kompensationseinheit II besteht ihrerseits aus einer Federanordnung (30) mit einem gegen die untere Verschlussplatte (6) andrückenden Einsatzrahmen (25), die mit Befestigungsschrauben (26) auf der Unterseite des Gehäuses (4) befestigt ist.The invention relates to a sliding closure for a metallurgical vessel, with two compensation units I and II to compensate for overloads that can result from the thermal expansion and from manufacturing-related scattering of the refractory closure plate thicknesses and / or the upper inner sleeve, the inner sleeve also during operation can lower. The compensation unit I consists of a spring arrangement (23) with pivoting fastening screws (15a, 15b) between the housing (4) and a cover (11) of the housing. The compensation unit II in turn consists of a spring arrangement (30) with an insert frame (25) pressing against the lower closure plate (6), which is fastened to the underside of the housing (4) with fastening screws (26).

Description

Die Erfindung betrifft einen Schiebeverschluss für ein metallurgisches Gefäss, vorzugsweise ein Verteilergefäss für eine Stranggiessanlage, nach dem Oberbegriff des Anspruchs 1.The invention relates to a sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting plant, according to the preamble of claim 1.

Schiebeverschlüsse dieser Art sind beispielweise aus der Druckschrift EP 0 891 829 vorbekannt. Sie zeichnen sich dadurch aus, dass bei ihnen die Drosselung oder das Schliessen des Ausgusses durch die Längsbewegung der Schieberplatte bewirkt wird. Somit dienen sie insbesondere als Stellglied für ein geregeltes Abgiessen der Schmelzenmenge aus dem metallurgischen Gefäss.Sliding locks of this type are, for example, from the publication EP 0 891 829 previously known. They are characterized by that with them the throttling or the closing of the spout is brought about by the longitudinal movement of the slide plate. They thus serve in particular as an actuator for a controlled pouring of the amount of melt from the metallurgical vessel.

Für eine störungsfreie Funktion des Schiebeverschlusses ist die Plattenverspannung so eingestellt, dass sie sowohl die freie Verschiebbarkeit der Schieberplatte als auch die nötige Dichtigkeit des Schiebeverschlusses gegen ein Luftansaugen sicherstellt. Die Pfattenverspannung ist aber im Betrieb zusätzlichen Belastungen ausgesetzt, die vornehmlich wegen der thermischen Ausdehnung der feuerfesten Platten resultiert. Hinzu kommen auch Belastungen durch die ebenfalls feuerfeste obere Innenhülse im Gefäss infolge ihrer thermischen Ausdehnung oder Absenkung.For a trouble-free function of the slide lock, the plate tension is set in such a way that it ensures both the free movement of the slide lock and the necessary tightness of the slide lock against air intake. However, the bracing of the slats is exposed to additional loads during operation, which results primarily from the thermal expansion of the refractory panels. In addition, there are also loads due to the likewise fire-proof upper inner sleeve in the vessel due to its thermal expansion or lowering.

Der Erfindung liegt die Aufgabe zugrunde, einen Schiebeverschluss der eingangs genannten Art zu schaffen, der den betrieblichen Belastungen der Plattenverspannung infolge der thermischen Ausdehnung der Verschlussplatten und/oder der Ausdehnung bzw. Absenkung der oberen Innenhülse optimal aufnimmt.The invention has for its object to provide a sliding closure of the type mentioned, which optimally absorbs the operational stresses of the plate bracing due to the thermal expansion of the closure plates and / or the expansion or lowering of the upper inner sleeve.

Die Aufgabe ist erfindungsgemäss nach den Merkmalen des Anspruchs 1 gelöst.The object is achieved according to the features of claim 1.

Mit dieser ersten Kompensationseinheit mit Federanordnungen zum Verspannen der Verschlussplatten gegeneinander sowie dieser zweiten Kompensationseinheit mit Federanordnungen zum Verspannen der Verschlussplatten gegen die obere Innenhülse mit einem zusätzlichen im Gehäuse verstellbaren Einsatzrahmen, der gegen die untere Verschlussplatte andrückbar ist, kann eine optimale Aufnahme der Feuerfestausdehnungen erzielt werden.With this first compensation unit with spring arrangements for tightening the closing plates against each other as well as this second compensation unit with spring arrangements for tightening the closing plates against the upper inner sleeve with an additional insert frame that is adjustable in the housing and can be pressed against the lower closing plate, an optimal absorption of the refractory expansion can be achieved.

Durch das Zusammenwirken der beiden Kompensationseinheiten werden sowohl Überbelastungen durch die thermische Ausdehnung der Feuerfestplatten als auch durch die Ausdehnung bzw. Absenkung der feuerfesten Innenhülse minimiert. Derartige Überbelastungen sind somit, anders als bei dem Schiebeverschluss nach der EP 0 891 829 , nicht erst durch die gegebene Steifigkeit der Feuerfestteile und des metallischen Schiebegehäuses limitiert. Das ist für die Funktionsfähigkeit bzw. die Lebensdauer der Feuerfestteile des Schiebeverschlusses vorteilhaft.The interaction of the two compensation units minimizes overloading due to the thermal expansion of the refractory plates as well as the expansion or lowering of the refractory inner sleeve. Such overloads are thus, unlike the slide closure according to the EP 0 891 829 , not limited only by the stiffness of the refractory parts and the metal sliding housing. This is advantageous for the functionality and the service life of the refractory parts of the sliding lock.

Die Erfindung sieht vor, dass sich die Federanordnung der ersten Kompensationseinheit aus Tellerfedern zusammensetzt, deren Vorspannung vorzugsweise mit Hilfe eines Hubbegrenzungsanschlags der Befestigungsschrauben einstellbar ist. Damit kann die Plattenverspannung einem breiten Ausdehnungsbereich der Feuerfestteile angepasst werden, welcher sich aus thermischen Gründen oder aus herstellungsbedingten Streuungen der feuerfesten Verschlussplattendicken ergibt. Mit dem Hubbegrenzungsanschlag kann auch die Anfangsvorspannung der Federn präzise und wiederholbar eingestellt werden.The invention provides that the spring arrangement of the first compensation unit is composed of disc springs, the pretensioning of which can preferably be adjusted with the aid of a stroke limit stop of the fastening screws. The plate bracing can thus be adapted to a wide expansion range of the refractory parts, which results from thermal reasons or from manufacturing-related scattering of the refractory closing plate thicknesses. With the stroke limit stop, the initial preload of the springs can also be set precisely and repeatably.

Es ist dabei zweckmässig, wenn die Tellerfedern den Federhub über Schwenkbolzen übertragen, deren Führungen mit Einlagen versehen sind. Dadurch wird der Verschleiss dieser Teile minimiert.It is expedient if the plate springs transmit the spring stroke via pivot pins, the guides of which are provided with inserts. This minimizes wear on these parts.

Die Erfindung sieht ferner vor, dass der Einsatzrahmen der zweiten Kompensationseinheit auf der Unterseite des Gehäuses mittels beidseitig des Ausgusses paarweise angeordneten Befestigungsschrauben mit zwischen ihrem Schraubenkopf und dem Einsatzrahmen eingelegten Tellerfedern, welche die Federanordnung der zweiten Kompensationseinheit bilden, befestigt ist. Auf diese Weise kann eine gleichmässige Beanspruchung des Einsatzrahmens und somit der unteren Verschlussplatte mit konstruktiv einfachen Mitteln erzielt werden.The invention further provides that the insert frame of the second compensation unit is fastened on the underside of the housing by means of fastening screws arranged in pairs on both sides of the spout with disc springs inserted between its screw head and the insert frame, which form the spring arrangement of the second compensation unit. In this way, uniform loading of the insert frame and thus of the lower closure plate can be achieved with structurally simple means.

Um sicherzustellen, dass die untere Verschlussplatte einwandfrei dichtend auf dem Einsatzrahmen aufliegt, ist es zweckmässig, zwischen dieser und dem Gehäuse ein den Ausguss umfassendes Dichtelement vorzusehen, das vorzugsweise in einer Nut im Gehäuse und/oder im Einsatzrahmen eingelegt ist.In order to ensure that the lower sealing plate lies on the insert frame in a sealing manner, it is expedient to provide a sealing element comprising the spout between the latter and the housing, which is preferably inserted in a groove in the housing and / or in the insert frame.

Der Schiebeverschluss ist vorteilhaft mit einem auswechselbaren Giessrohr versehen, das mit federbelasteten Anpresselementen gegen die untere Verschlussplatte angedrückt ist. Die Anpresselemente sind zweckmässigerweise so angeordnet, dass sie unabhängig von den beiden Kompensationseinheiten des Schiebeverschlusses wirksam sind. Somit bleiben diese sowohl mit als auch ohne Giessrohr in allen Betriebsphasen funktionsfähig.The sliding closure is advantageously provided with an exchangeable pouring tube which is pressed against the lower closure plate by means of spring-loaded pressing elements. The pressing elements are expediently arranged in such a way that they are effective independently of the two compensation units of the sliding closure. This means that they remain functional in all operating phases, both with and without a pouring tube.

Der Erfindung ist nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigen:

Fig. 1
einen teilweisen Längsschnitt eines erfindungsgemässen Schiebeverschlusses,
Fig. 2
eine perspektivische Draufsicht des Schiebeverschlusses nach Fig. 1 auf seine an das Gefäss befestigbaren Oberseite,
Fig. 3
einen Schnitt einer Federanordnung mit einer wegschwenkbaren Spannschraube des Schiebeverschlusses,
Fig. 4
eine Teilansicht des Schiebeverschlusses mit einem Einsatzrahmen,
Fig. 5
ein Federorgan des Schiebeverschlusses, im Schnitt dargestellt,
Fig. 6
ein Prinzipschema der Kompensationseinheiten im Schiebeverschluss nach Fig. 1 mit einem Schnitt der Verschlussplatten und teilweise der Innenhülse bzw. des Giessrohrs, und
Fig. 7
eine perspektivische Draufsicht auf eine Klemmvorrichtung für das Festklemmen einer Verschlussplatte in einem Metallrahmen des Schiebeverschlusses nach Fig. 1.
The invention is explained below using an exemplary embodiment with reference to the drawing. Show it:
Fig. 1
a partial longitudinal section of a sliding closure according to the invention,
Fig. 2
a top perspective view of the sliding closure after Fig. 1 on its top that can be attached to the vessel,
Fig. 3
2 shows a section of a spring arrangement with a tensioning screw of the sliding closure which can be swiveled away
Fig. 4
a partial view of the slide lock with an insert frame,
Fig. 5
a spring element of the slide lock, shown in section,
Fig. 6
a schematic diagram of the compensation units in the sliding lock Fig. 1 with a cut of the closure plates and partially the inner sleeve or the pouring tube, and
Fig. 7
a top perspective view of a clamping device for clamping a closure plate in a metal frame of the sliding closure after Fig. 1 ,

Der Schiebeverschluss nach Fig. 1 ist am Ausguss eines metallurgischen Gefässes montierbar. Das Gefäss ist vorzugsweise als Verteilergefäss einer Stranggiessanlage ausgebildet, wobei der Schiebeverschluss dazu dient, die beim Giessvorgang in die Stranggiesskokille zugeführte Schmelzenmenge zu regulieren. Ein an der Unterseite des Schiebeverschluss angeordnetes Giessrohr 3 ermöglicht ein verdecktes Giessen der Metallschmelze in die Kokille. Dieser Schiebeverschluss könnte aber auch an einer Pfanne, einem Abstich eines Konverters oder dergleichen verwendet werden.The sliding lock after Fig. 1 can be mounted on the spout of a metallurgical vessel. The vessel is preferably designed as a distributor vessel of a continuous casting plant, the sliding closure serving to regulate the amount of melt fed into the continuous casting mold during the casting process. A pouring tube 3 arranged on the underside of the sliding closure enables the molten metal to be poured into the mold in a concealed manner. However, this sliding closure could also be used on a pan, a converter rack or the like.

Der Schiebeverschluss nach Fig. 1 und Fig. 2 umfasst ein Gehäuse 4 mit an seiner oberen Stirnfläche rundum angeordneten Dichtung 4', damit es im montierten Zustand am Gefäss auf seiner Oberseite umschliessend abgedichtet ist. Im Gehäuse 4 sind feststehende feuerfeste Verschlussplatten 5, 6 sowie eine zwischen ihnen von einem Antrieb 7 hin- und her bewegbaren Schieberplatte 8 einsetzbar, mit deren Längsbewegung ein Öffnen, Drosseln oder Schliessen des Ausgusses 9 bewirkt wird. Die obere Verschlussplatte 5 ist in einem um eine Achse 10 schwenkbar gelagerten Deckel 11 des Gehäuses 4 angeordnet, während die untere Verschlussplatte 6 in einem Einsatzrahmen 25 des Gehäuses 4 fixiert ist und die bewegbare Verschlussplatte 8 in einem mit dem Antrieb 7 gekoppelten Metallrahmen 12 eingespannt ist. Das Giessrohr 3 ist gegen die untere Verschlussplatte 6 mit federbelasteten Kipphebeln 33 angedrückt. Das Gehäuse 4 weist auf der Oberseite vorstehende Auflagen 13 auf, die im Betriebszustand gegen den äusseren Stahlmantel des Verteilergefässes 2 angelegt sind.The sliding lock after 1 and 2 comprises a housing 4 with a seal 4 ′ arranged all around on its upper end face, so that it is sealed on the top of the vessel in the assembled state. Fixed refractory closure plates 5, 6 and a slide plate 8 which can be moved back and forth between them by a drive 7 can be used in the housing 4, the longitudinal movement of which causes the spout 9 to be opened, throttled or closed. The upper closure plate 5 is arranged in a cover 11 of the housing 4 which is pivotably mounted about an axis 10, while the lower closure plate 6 is fixed in an insert frame 25 of the housing 4 and the movable closure plate 8 is clamped in a metal frame 12 coupled to the drive 7 , The pouring tube 3 is pressed against the lower closure plate 6 with spring-loaded rocker arms 33. The housing 4 has protruding supports 13 on the upper side, which in the operating state are placed against the outer steel jacket of the distribution vessel 2.

Wie in Fig. 3 veranschaulicht ist, weist eine Federanordnung 23 einen im Gehäuse 4 geführten Unterteil 16 mit einem Schraubenkopf 17 und einem Querbolzen 18 auf, um den ein mit Gewinde 19 versehener Schwenkbolzen 20 schwenkbar ist, wobei letzterer in einer Aussparung 21 des Deckels 11 geführt und in einer Mutter 22 oberhalb des Deckels eingeschraubt ist. Um den Zugang zu den Verschlussplatten 5, 6 und 8 zu ermöglichen, können die Muttern 22 gelöst und die Schwenkbolzen 20 aus den Aussparungen 21 des Deckels ausgeschwenkt werden. Die Schwenkbolzen 20 sind mit einem Hubbegrenzungsanschlag 20a versehen, mit dem die Anfangsvorspannung der auf Zug wirkenden Tellerfedern 23 präzise und wiederholbar einstellbar ist. Den Muttern 22 der Befestigungsschrauben sind Einlagen 24 im Deckel 11 zugeordnet, die den Verschleiss infolge der im Betrieb häufigen Montage- und Demontagen der Schraubenverbindungen minimieren.As in Fig. 3 is illustrated, a spring arrangement 23 has a lower part 16 guided in the housing 4 with a screw head 17 and a transverse bolt 18 about which a pivot bolt 20 provided with thread 19 can be pivoted, the latter being guided in a recess 21 in the cover 11 and in a nut 22 is screwed in above the cover. In order to enable access to the closure plates 5, 6 and 8, the nuts 22 can be loosened and the pivot bolts 20 can be pivoted out of the recesses 21 in the cover. The pivot bolts 20 are provided with a stroke limit stop 20a, with which the initial preload of the plate springs 23 acting on tension can be adjusted precisely and repeatably. The nuts 22 of the fastening screws are assigned inserts 24 in the cover 11, which minimize wear due to the frequent assembly and disassembly of the screw connections during operation.

Im Betriebszustand sind die Muttern 22 soweit auf den Schwenkbolzen 20 aufgeschraubt, dass die zwischen dem Einsatzrahmen 25 und dem Deckel 11 liegenden Verschlussplatten des Schiebeverschlusses gegeneinander mit der jeweils vorgesehenen Anpresskraft verspannt sind. Diese Anpresskraft ist so bemessen, dass sie im Betrieb die störungsfreie Verschiebbarkeit der Schieberplatte 8 bei voller Metall- bzw. Gasdichtigkeit des Schiebeverschlusses nach aussen sicherstellt.In the operating state, the nuts 22 are screwed onto the pivot pin 20 to such an extent that the closure plates of the slide closure located between the insert frame 25 and the cover 11 are braced against one another with the respectively provided contact pressure. This contact pressure is dimensioned such that it ensures the trouble-free displacement of the slide plate 8 during operation with full metal or gas tightness of the slide closure to the outside.

Die feuerfesten Verschlussplatten 5, 6, 8 erfahren im Betrieb durch die Erwärmung bzw. durch ihre Herstellungstoleranzen eine streuende mechanische Ausdehnung von bis zu 3 Millimetern, wodurch die Plattenverspannung einer zusätzlichen Belastung ausgesetzt ist. Diese wird erfindungsgemäss mit einer ersten Kompensationseinheit I ausgeglichen, indem die Tellerfedern 23' der Federanordnung 23 infolge der Zusatzbelastung mehr oder weniger nachgeben. Durch die paarweise Anordnung der Befestigungsschrauben 15a bis 15d beidseitig des Ausgusses 1 ist die Belastungskompensation sehr gleichmässig auf die Verschlussplatten wirksam verteilt.During operation, the refractory closure plates 5, 6, 8 experience a scattering mechanical expansion of up to 3 millimeters as a result of the heating or their manufacturing tolerances, as a result of which the plate tension is subjected to an additional load. According to the invention, this is compensated for by a first compensation unit I, in that the plate springs 23 'of the spring arrangement 23 yield more or less as a result of the additional load. Due to the paired arrangement of the fastening screws 15a to 15d on both sides of the spout 1 the load compensation is distributed very evenly over the closing plates.

Gemäss Fig. 4 und Fig. 5 ist auf der Unterseite des Gehäuses 4 ein Einsatzrahmen 25 mit einer Federanordnung 30 zum Verspannen der Verschlussplatten 5, 6, 8 gegen die obere Innenhülse 1 des Ausgusses angeordnet. Dieser zusätzliche Einsatzrahmen 25 ist am Gehäuse 4 mit beidseitig des Ausgusses paarweise angeordneten Befestigungsschrauben 26 befestigt.According to Fig. 4 and Fig. 5 an insert frame 25 with a spring arrangement 30 for bracing the closure plates 5, 6, 8 against the upper inner sleeve 1 of the spout is arranged on the underside of the housing 4. This additional insert frame 25 is fastened to the housing 4 with fastening screws 26 arranged in pairs on both sides of the spout.

Die Federanordnung 30 besteht ihrerseits aus Tellerfedern 30, die zwischen dem Schraubenkopf 28 der Befestigungsschrauben 26 und dem Einsatzrahmen 25 eingelegt sind und die Funktion aufweisen, den Einsatzrahmen gegen die auf ihr aufliegende untere Verschlussplatte 6 anzudrücken und damit die drei Verschlussplatten 5, 6, 8 gemeinsam gegen die obere Innenhülse 1 des Ausgusses zu verspannen.The spring arrangement 30 in turn consists of disc springs 30 which are inserted between the screw head 28 of the fastening screws 26 and the insert frame 25 and have the function of pressing the insert frame against the lower closure plate 6 resting on it and thus the three closure plates 5, 6, 8 together to be braced against the upper inner sleeve 1 of the spout.

Mit dieser erfindungsgemäss gebildeten zweiten Kompensationseinheit II wird bei einer Ausdehnung bzw. Absenkung der Innenhülse 1 die damit verursachte Zusatzbelastung kompensiert, indem infolge dieser Belastung die Tellerfedern 30 mehr oder weniger nachgeben. Es ist vorteilhaft, wenn diese Tellerfedern 30 derart hergestellt sind, dass sie mit einer steilen Kennlinie in Bezug auf ihren Hubweg im Verhältnis zur Federkraft versehen sind, damit sie mit wenig Hub eine relativ hohe Kraftänderung bewirken. Dies ist auf die entsprechenden Kennlinien der Tellerfedern 23' der Kompensationseinheit I abgestimmt, damit stets eine optimale Verspannung gegeben ist. Es soll dabei vermieden werden, dass je nach Position der verschiebbaren Verschlussplatte 8 ein Abkippen der Verschlussplatten erfolgen könnte, wobei dies aufgrund einer externen Krafteinwirkung primär durch das Giessrohr auftreten könnte.With this second compensation unit II, which is formed according to the invention, when the inner sleeve 1 is expanded or lowered, the additional load caused thereby is compensated by the plate springs 30 yielding more or less as a result of this load. It is advantageous if these disc springs 30 are manufactured in such a way that they are provided with a steep characteristic curve with respect to their stroke path in relation to the spring force, so that they cause a relatively high change in force with little stroke. This is matched to the corresponding characteristic curves of the plate springs 23 'of the compensation unit I, so that there is always an optimal tension. It is to be avoided that depending on the position of the displaceable closure plate 8, the closure plates could be tilted, which could primarily occur due to an external force effect through the pouring tube.

Ferner ist zur Verbesserung der Auflage zwischen dem Gehäuse 4 und dem Einsatzrahmen 25 ein letzteren umfassendes Dichtelement 31 in einer Nut 32 etwa hälftig im Gehäuse 4 und etwa hälftig im Einsatzrahmen 25. Damit wird ein Labyrintheffekt erzielt, welcher die Dichtigkeit zusätzlich verbessert.Die Nut könnte auch nur im Gehäuse oder im Einsatzrahmen ausgebildet sein.Furthermore, in order to improve the support between the housing 4 and the insert frame 25, a sealing element 31 comprising the latter is approximately half in the groove 4 in the groove 4 and approximately half in the insert frame 25. This achieves a labyrinth effect which additionally improves the tightness. The groove could also be formed only in the housing or in the insert frame.

Fig. 6 zeigt schematisch die Anordnung der beiden Kompensationseinheiten I und II in dem Schiebeverschluss. Die erste Kompensationseinheit I ist durch die auf Zug wirkenden Federanordnungen 23 zwischen dem Deckel 11 und dem Gehäuse 4 zur nachgiebigen Verspannung der Verschlussplatten 5, 6, 8 gebildet, indes die zweite Kompensationseinheit II durch die auf Druck wirkenden Federanordnungen 30 zwischen dem Einsatzrahmen 25 und dem Gehäuse 4 zur Verspannung der Verschlussplatten 5, 6, 8 gegen die Innenhülse 1 wirksam ist. Fig. 6 shows schematically the arrangement of the two compensation units I and II in the sliding closure. The first compensation unit I is formed by the spring arrangements 23 acting on the tension between the cover 11 and the housing 4 for resilient bracing of the closure plates 5, 6, 8, while the second compensation unit II is formed by the spring arrangements 30 acting on the pressure between the insert frame 25 and the Housing 4 for clamping the closure plates 5, 6, 8 against the inner sleeve 1 is effective.

Diese Kompensationseinheiten sind dabei unabhängig voneinander einstellbar und auch unabhängig voneinander wirksam, so dass sie ihre Funktion sowohl einzeln als auch in Kombination miteinander ausüben können. Im Ergebnis schützen sie die Feuerfestteile des Schiebeverschlusses vor Überbeanspruchungen, die sich aus der thermischen Ausdehnung und aus herstellungsbedingten Streuungen der feuerfesten Verschlussplattendicken und/oder der oberen Innenhülse ergeben können, wobei sich die Innenhülse im Betrieb auch absenken kann.These compensation units can be set independently of one another and are also effective independently of one another, so that they can perform their function both individually and in combination with one another. As a result, they protect the refractory parts of the sliding closure from overstressing, which can result from the thermal expansion and from manufacturing-related scattering of the refractory closure plate thicknesses and / or the upper inner sleeve, the inner sleeve also being able to lower during operation.

Auch für die Fixierung der mittleren Schieberplatte 8 in ihrem Metallrahmen 12 mit einer Klemmvorrichtung 34 ist so gewählt, dass deren Anordnung im Gehäuse 4 die Funktion der Kompensationseinheiten I und II nicht beeinträchtigt ist.Also for fixing the middle slide plate 8 in its metal frame 12 with a clamping device 34 is chosen so that its arrangement in the housing 4 does not affect the function of the compensation units I and II.

Die Klemmvorrichtung 34 gemäss Fig. 7 setzt sich aus einer im Metallrahmen 12 gegen die Verschlussplatte 8 verstellbaren Klemmbacke 38, zwei beidseitig zur Mittelachse M der Schieberplatte 8 angeordneten Anstellelementen 35, 36 sowie einer die letzteren lagernden Gewindespindel 37 zusammen. Die Gewindespindel 37 ist dabei quer zur Mittelachse M im Metallrahmen 12 drehbar gelagert und mit gegenläufigen Gewindeabschnitten versehen. Durch manuelle Drehung dieser Gewindespindel 37 werden die Anstellelemente 35, 36 symmetrisch zueinander nach aussen oder nach innen verstellt und durch korrespondierende Keilflächen 35', 36' bei den Anstellelementen 35, 36 bzw. der Klemmbacke 38 wird letztere gegen die Verschlussplatte 8 angedrückt, so dass eine selbsthemmende Verkeilung entsteht, damit sich diese im Betriebszustand nicht lösen.The clamping device 34 according to Fig. 7 is composed of a clamping jaw 38 adjustable in the metal frame 12 against the closing plate 8, two adjusting elements 35, 36 arranged on both sides of the central axis M of the slide plate 8 and a threaded spindle 37 bearing the latter together. The threaded spindle 37 is rotatably mounted transversely to the central axis M in the metal frame 12 and provided with opposing threaded sections. By manual rotation of this threaded spindle 37, the adjusting elements 35, 36 are adjusted symmetrically to one another outwards or inwards and by corresponding wedge surfaces 35 ', 36' in the adjusting elements 35, 36 or the clamping jaw 38, the latter is pressed against the closing plate 8, so that A self-locking wedge is created so that it does not come loose in the operating state.

Die Erfindung ist mit dem oben erläuterten Ausführungsbeispiel ausreichend dargetan. Selbstverständlich könnten noch andere Varianten vorgesehen sein. So könnten anstelle von diesen Tellerfedern 23', 30' auch andere Federn, wie Schraubenfedern oder dergleichen, verwendet werdenThe invention is sufficiently demonstrated with the exemplary embodiment explained above. Of course, other variants could also be provided. So other springs, such as coil springs or the like, could be used instead of these disc springs 23 ', 30'

Claims (9)

Schiebeverschluss für ein metallurgisches Gefäss, vorzugsweise ein Verteilergefäss für eine Stranggiessanlage, mit einem auf der Unterseite des Gefässes befestigbaren Gehäuse (4), einer in einem Deckel (11) des Gehäuses (4) angeordneten oberen Verschlussplatte (5), einer unteren Verschlussplatte (6) und einer zwischen diesen längsverschiebbaren Verschlussplatte (8), wobei diese Verschlussplatten (5, 6, 8) gegeneinander mit zwischen dem Gehäuse (4) und dem Deckel (11) sich erstreckenden Federanordnungen verspannt sind, dadurch gekennzeichnet, dass
der Schiebeverschluss mit einer ersten Kompensationseinheit I mit Federanordnungen (23) zum Verspannen der Verschlussplatten (5, 6, 8) gegeneinander sowie einer zweiten Kompensationseinheit II mit Federanordnungen (30) zum Andrücken der Verschlussplatten (5, 6, 8) gegen die obere Innenhülse (9) mit einem zusätzlichen im Gehäuse (4) angeordneten Einsatzrahmen (25) versehen ist, der gegen die untere Verschlussplatte (6) andrückbar ist.Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous caster, with a housing (4) which can be fastened on the underside of the vessel, an upper closure plate (5) arranged in a cover (11) of the housing (4), and a lower closure plate (6 ) and a closure plate (8) which can be displaced longitudinally between these, said closure plates (5, 6, 8) being braced against one another with spring arrangements extending between the housing (4) and the cover (11), characterized in that
the sliding closure with a first compensation unit I with spring arrangements (23) for bracing the closure plates (5, 6, 8) against one another and a second compensation unit II with spring arrangements (30) for pressing the closure plates (5, 6, 8) against the upper inner sleeve ( 9) is provided with an additional insert frame (25) arranged in the housing (4), which can be pressed against the lower closure plate (6). Schiebeverschluss nach Anspruch 1, dadurch gekennzeichnet, dass
der jeweiligen Federanordnung (23) der ersten Kompensationseinheit I eine vom Deckel (11) wegschwenkbare Befestigungsschraube (15a - 15d) zugeordnet ist.Sliding closure according to claim 1, characterized in that
the respective spring arrangement (23) of the first compensation unit I is assigned a fastening screw (15a - 15d) which can be pivoted away from the cover (11). Schiebeverschluss nach Anspruch 2, dadurch gekennzeichnet, dass
die jeweilige Federanordnung (23) mehrere Tellerfedern (23') aufweist, deren Vorspannung vorzugsweise mit Hilfe eines Hubbegrenzungsanschlags (20a - 20d) bei der jeweiligen Befestigungsschraube (15a - 15d) einstellbar ist.Sliding closure according to claim 2, characterized in that
the respective spring arrangement (23) has a plurality of disc springs (23 '), the prestressing of which can preferably be adjusted with the aid of a stroke limiting stop (20a - 20d) on the respective fastening screw (15a - 15d). Schiebeverschluss nach Anspruch 3, dadurch gekennzeichnet, dass
die Tellerfedern (23) ihren Federhub über Schwenkbolzen (20) der Befestigungsschrauben (15a - 15d) übertragen, deren Führungen mit Einlagen (24) versehen sind.Sliding closure according to claim 3, characterized in that
the disc springs (23) transmit their spring stroke via pivot bolts (20) of the fastening screws (15a - 15d), the guides of which are provided with inserts (24). Schiebeverschluss nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass
der Einsatzrahmen (25) der zweiten Kompensationseinheit II auf der Unterseite des Gehäuses (4) mittels beidseitig des Ausgusses (1) paarweise angeordneten Befestigungsschrauben (26) mit zwischen ihrem Schraubenkopf (28) und dem Einsatzrahmen (25) eingelegten Tellerfedern (30') der Federanordnung (30) befestigt ist.Sliding closure according to one of claims 1 to 4, characterized in that
the insert frame (25) of the second compensation unit II on the underside of the housing (4) by means of fastening screws (26) arranged in pairs on both sides of the spout (1) with disc springs (30 ') inserted between their screw head (28) and the insert frame (25) Spring arrangement (30) is attached. Schiebeverschluss nach Anspruch 5, dadurch gekennzeichnet, dass
zwischen dem Einsatzrahmen (25) und dem Gehäuse (4) ein umfassendes Dichtelement (31) in einer Nut (32) des Gehäuses und/oder des Einsatzrahmes eingelegt ist.Sliding closure according to claim 5, characterized in that
a comprehensive sealing element (31) is inserted in a groove (32) of the housing and / or the insert frame between the insert frame (25) and the housing (4). Schiebeverschluss nach einem der Ansprüche 1 bis 6, mit einem auswechselbaren Giessrohr (3), das mit federbelasteten Anpresselementen (33) gegen die untere Verschlussplatte (6) andrückbar ist, dadurch gekennzeichnet, dass
die Anpresselemente (33) so angeordnet sind, dass sie unabhängig von den beiden Kompensationseinheiten I und II des Schiebeverschlusses wirksam sind.Sliding closure according to one of claims 1 to 6, with an exchangeable pouring tube (3) which can be pressed against the lower closure plate (6) by means of spring-loaded pressing elements (33), characterized in that
the pressing elements (33) are arranged such that they are effective independently of the two compensation units I and II of the sliding closure. Schiebeverschluss nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass
die mittlere längsverschiebbare Verschlussplatte (8) in einem Metallrahmen (12) mit einer in diesem integrierten Klemmvorrichtung (34) verspannbar ist, welche sich aus einer im Metallrahmen (12) gegen die Verschlussplatte (8) verstellbaren Klemmbacke (38), zwei beidseitig zur Mittelachse (M) der Schieberplatte (8) angeordneten Anstellelemente (35, 36) sowie einer mit letzteren wirkverbundenen Gewindespindel (37) zusammensetzt, wobei durch eine manuelle Drehung dieser Gewindespindel (37) die Anstellelemente (35, 36) symmetrisch zueinander verstellt werden und durch Keilflächen (35', 36') die Klemmbacke (38) gegen die Verschlussplatte (8) selbsthemmend andrückbar ist.Sliding closure according to one of claims 1 to 7, characterized in that
the middle, longitudinally displaceable closing plate (8) can be clamped in a metal frame (12) with a clamping device (34) integrated therein, which consists of a clamping jaw (38) adjustable in the metal frame (12) against the closing plate (8), two on both sides of the central axis (M) of the slide plate (8) arranged adjusting elements (35, 36) and a threaded spindle (37) operatively connected to the latter, the adjusting elements (35, 36) being adjusted symmetrically to one another by manual rotation of this threaded spindle (37) and by wedge surfaces (35 ', 36') the clamping jaw (38) can be pressed against the closure plate (8) in a self-locking manner. Schiebeverschluss nach Anspruch 8, dadurch gekennzeichnet, dass
die Gewindespindel (37) quer zur Mittelachse (M) im Metallrahmen (12) drehbar gelagert und mit gegenläufigen Gewindeabschnitten für das eine bzw. für das andere Anstellelement (35, 36) versehen ist.Sliding closure according to claim 8, characterized in that
the threaded spindle (37) is rotatably mounted transversely to the central axis (M) in the metal frame (12) and is provided with opposing threaded sections for one or the other adjusting element (35, 36).
EP18179932.1A 2018-06-26 2018-06-26 Sliding closure for a metallurgical vessel Active EP3587002B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP18179932.1A EP3587002B1 (en) 2018-06-26 2018-06-26 Sliding closure for a metallurgical vessel
PCT/EP2019/060299 WO2020001825A1 (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility
BR112020023507-5A BR112020023507A2 (en) 2018-06-26 2019-04-23 SLIDING LOCK FOR A METALLURGICAL VASE, PREFERENCE A DISTRIBUTOR FOR A CORDONY CASTING SYSTEM
KR1020217002081A KR20210024577A (en) 2018-06-26 2019-04-23 Slide closures for metallurgical vessels, preferably tundish for continuous casting systems
MX2020011851A MX2020011851A (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility.
UAA202008233A UA127927C2 (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility
CA3100704A CA3100704A1 (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility
US17/255,752 US11654480B2 (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility
CN201980042658.XA CN112334251B (en) 2018-06-26 2019-04-23 Sliding closure for a metallurgical vessel, preferably for a tundish of a continuous casting system
TW108116429A TW202000343A (en) 2018-06-26 2019-05-13 Slide closure for a metallurgical vessel, preferably a tundish for a strand casting system
ZA2020/06813A ZA202006813B (en) 2018-06-26 2020-10-30 Sliding closure for a metallurgical vessel, preferably a distributor vessel for a continuous casting facility

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EP18179932.1A EP3587002B1 (en) 2018-06-26 2018-06-26 Sliding closure for a metallurgical vessel

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US (1) US11654480B2 (en)
EP (1) EP3587002B1 (en)
KR (1) KR20210024577A (en)
CN (1) CN112334251B (en)
BR (1) BR112020023507A2 (en)
CA (1) CA3100704A1 (en)
MX (1) MX2020011851A (en)
TW (1) TW202000343A (en)
UA (1) UA127927C2 (en)
WO (1) WO2020001825A1 (en)
ZA (1) ZA202006813B (en)

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UA127927C2 (en) 2024-02-14
CA3100704A1 (en) 2020-01-02
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US20210268581A1 (en) 2021-09-02
WO2020001825A1 (en) 2020-01-02
TW202000343A (en) 2020-01-01
KR20210024577A (en) 2021-03-05
CN112334251B (en) 2023-03-10
CN112334251A (en) 2021-02-05
US11654480B2 (en) 2023-05-23
EP3587002B1 (en) 2020-12-16
ZA202006813B (en) 2022-01-26

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