EP2516086A1 - Sliding closure for a metallurgical container - Google Patents

Sliding closure for a metallurgical container

Info

Publication number
EP2516086A1
EP2516086A1 EP10801135A EP10801135A EP2516086A1 EP 2516086 A1 EP2516086 A1 EP 2516086A1 EP 10801135 A EP10801135 A EP 10801135A EP 10801135 A EP10801135 A EP 10801135A EP 2516086 A1 EP2516086 A1 EP 2516086A1
Authority
EP
European Patent Office
Prior art keywords
sliding closure
inner part
housing
slide unit
spout
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
EP10801135A
Other languages
German (de)
French (fr)
Other versions
EP2516086B1 (en
Inventor
Phillipp Ackermann
Werner Keller
Angelo Zingre
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.)
Stopinc AG
Original Assignee
Stopinc 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 Stopinc AG filed Critical Stopinc AG
Publication of EP2516086A1 publication Critical patent/EP2516086A1/en
Application granted granted Critical
Publication of EP2516086B1 publication Critical patent/EP2516086B1/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
    • B22D41/24—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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—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
    • 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 container according to the preamble of claim 1.
  • Slide closures of this type are known in various embodiments.
  • the document EP 1 1 19 428 discloses, for example, a sliding closure comprising two refractory closure plates with a metal housing which can be fastened to the container and accommodates the upper closure plate and a container-side refractory inlet sleeve.
  • the bottom closure or slide plate serving to open and close a spout opening is located in a metal slide.
  • CONFIRMATION COPY Berein arranged, which additionally receives a subsequent to the slide plate refractory spout.
  • the refractory parts of the sliding closure in particular the two closure plates, but also the container-side intake hoses and the sealing plate sealingly connected to the pouring spout are subjected to severe wear and must therefore be replaced regularly.
  • the housing accommodating the inlet sleeve and the upper closure plate as well as the slide unit and the slide unit containing this outlet hood are subjected to great stress, in particular in the area surrounding the pouring sleeve or the inlet sleeve, close to the flow opening. where the highest temperatures prevail and therefore the strongest tensions arise.
  • the sliding closure undergoes a strong heating from below, so that in particular this pouring sleeve receiving the slide unit is subjected to extremely high levels of thermal stress.
  • sliding closures which comprise a slide plate displaceable between two stationary closure plates (cf., for example, EP 0 891 829 A1), in which the housing which can be fastened to the container has, in addition to the two stationary closure plates, also the inlet sleeve and the pouring sleeve or the Casting tube absorbs.
  • the present invention has been based on the object to provide a sliding closure of the type mentioned, which withstands the high temperatures resulting from the glaze better.
  • the object is achieved according to the invention by a sliding closure according to the features of claim 1.
  • the housing attachable to the container and / or the slide unit is provided with an inner part enclosing the spout sleeve or the inlet sleeve, which is releasably connected to the remaining part of the housing or the slide unit and thermally expandable relative thereto, are just starting Where the highest temperatures prevail, the stresses in the slide unit or in the housing are reduced and the risk of cracks is considerably reduced.
  • sliding closures which are equipped with two or more closure plates, it is in particular the slide unit, which is additionally exposed from the bottom of a strong heating and can be effectively protected by the inventive two-part design.
  • the invention is also applicable to sliding closures comprising two fixed closure plates and a slide plate slidable therebetween.
  • the housing which can be fastened to the container, which receives the pouring sleeve (or a pouring tube) in its lower area and is subjected to particularly intense heating from below.
  • this housing can be formed in two parts, at least in the area enclosing the spout, and can have a thermally expandable inner part.
  • Fig. 2 shows a part of the sliding closure of FIG. 1 in a perspective exploded view
  • Fig. 3 shows a part of the sliding closure according to Fig. 1 in cross section along the axis of the flow opening.
  • the sliding closure 1 shows a sliding closure 1 for a metallurgical container, which may be, for example, a molten steel ladle used in a continuous casting plant.
  • the container itself is not apparent from the drawing.
  • the sliding closure 1 has a fastened to the container metal housing 2, in which an upper closure plate 3 is held from a refractory material, pressed against a container side, also refractory inlet sleeve 4, which is guided into a container hole punch, not shown.
  • the spout opening 10 defined by the inlet sleeve 4 and the upper closure plate 3 with its through-opening 3a can be partially or completely closed.
  • the terminal 1 1 of the slider unit 6 is indicated to a displacement causing linear actuator.
  • the two closure plates 3, 5 are centered in the respective housing by means of centering members 13 in a manner known per se and not further described below.
  • the slide unit 5 accommodating the slide plate 5 and the pouring sleeve 8 is provided with an inner part 7a enclosing the pouring sleeve 8, which is detachably connected to the remaining part 7b of the slide unit 6 and thermally expandable with respect to it.
  • the inner part 7a which is also apparent from Fig. 2, two diametrically opposed flange 17, 18, with which it can be guided into corresponding grooves 19 of the other slide unit 7b and then screwed with this.
  • shoulder screws 20 and for this in the one flange 17, a fitting opening 21 and in the other flange 18 a slot 22 are provided.
  • the one fitting shoulder screw 20 and the fitting opening 21 of the inner part which is in a bayonet-type connection in its lower portion 27 with the already mentioned bracing member 9 for bracing the spout 8 with the overlying closure plate 5, allows the slot 22 a thermal expansion of the inner part 7a transverse to the axis A of the spout opening 10.
  • a radial air gap 28 is present, which forms a kind of temperature barrier between the spout 8 and the two-part slide unit 6.
  • the fitting shoulder screws 20 screwed into the slide unit 6 are advantageously arranged in a longitudinal center plane of the slide fastener.
  • that flange portion 22 of the inner part is provided with the slot 22 for the fitting shoulder screw 20, the at Moving the slide unit 6 is closer to the axis A of the spout opening in the closed position and is therefore exposed to the greater temperature, for example, in a throttle position of the sliding closure.
  • the housing 2 which can be fastened to the container is also designed in two parts and provided with a preferably annular inner part 2 a enclosing the inlet sleeve 4.
  • This serving as a wear ring inner part 2a is detachably connected via a number of axially directed, distributed over the circumference fastening bolts 30 with the rest of the housing 2b.
  • the inner part 2a has a conical, upwardly tapering inner surface 31, which rests on a conical, upwardly tapering outer shoulder surface 32 of the inlet sleeve 4. Cylindrical inner surfaces 33, 34 adjoin the conical inner surface 31, wherein a radial air gap 35 is present between these cylindrical inner surfaces 33, 34 and the outer circumference of the inlet sleeve 4.
  • the housing 2 which can be fastened to the container, but above all the housing frame 7 of the slide unit 6, is designed in two parts and has an inner part 2a enclosing the pouring sleeve 8 or the inlet sleeve 4; 7a is provided, are formed with the air gaps and thermal expansion is possible, just in the places where the greatest temperatures prevail, the stresses in the housing frame 7 and in the housing 2 degraded and the risk of cracks, significantly reduced.
  • sliding closures which are equipped with two closure plates, it is the slide unit 6, which is additionally exposed from the bottom of a strong heating and can be effectively protected by the inventive two-part design. According to Fig.
  • this upper the inlet sleeve 4 centering, designed as a ring inner part 2a and on the other hand in the housing 2 containing and the inlet sleeve 4 partially surrounding inner part 2a 'is provided.
  • This inner part 2a ' is formed in two parts and, advantageously, it is arranged at a distance from the inlet sleeve 4.
  • the invention is also applicable to sliding closures comprising two fixed closure plates and a slide plate slidable therebetween.
  • the housing attachable to the container, which receives in its lower part the spout (or a pouring tube) and is exposed from the bottom of the particularly strong heating.
  • this housing can be formed in two parts, at least in the area enclosing the spout, and can have a thermally expandable inner part.
  • this housing could also be equipped with a further inner part in the region of the inlet sleeve.
  • Cast iron or spheroidal cast iron is particularly suitable as the housing material.
  • the inner parts 7a, 2a and the other housing sections 7b, 2b can also consist of different materials.
  • the fasteners such. B. the passport shoulder screws 20 are also made of a temperature-resistant material as possible.

Landscapes

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

Abstract

The invention relates to a sliding closure (1) for a metallurgical container, comprising two fireproof closing plates (3; 5), of which one is arranged in a slide unit (6) and is used to open and close a spout opening (10). The other closing plate (3) is arranged in a metal housing (2) that can be fastened to the container. Said stationary housing (2) and the slide unit (6) also accommodate an upper fireproof inlet sleeve (4) on the container side and a lower fireproof spout sleeve (8). In the housing (2) and in the slide unit (6), at least one additional inner part (2a, 2a', 7a) is arranged in each case, each additional inner part enclosing the spout sleeve (8) or the inlet sleeve (4). Thus, thermal stresses in the slide unit or in the housing can be reduced and the risk of cracks forming can be significantly reduced.

Description

Schiebeverschluss für einen metallurgischen Behälter  Sliding closure for a metallurgical container
Die Erfindung betrifft einen Schiebeverschluss für einen metallurgischen Behälter gemäss dem Oberbegriff des Anspruches 1 . The invention relates to a sliding closure for a metallurgical container according to the preamble of claim 1.
Schiebeverschlüsse dieser Art sind in verschiedenen Ausgestaltungen bekannt. Die Druckschrift EP 1 1 19 428 offenbart beispielsweise einen zwei feuerfeste Verschlussplatten umfassenden Schiebeverschluss mit einem am Behälter befestigbaren metallenen Gehäuse, der die obere Verschlussplatte sowie eine behälterseitige feuerfeste Einlaufhülse aufnimmt. Die zum öffnen und Schliessen einer Ausgussöffnung dienende untere Verschluss- bzw. Schieberplatte ist in einer metallenen Schie- Slide closures of this type are known in various embodiments. The document EP 1 1 19 428 discloses, for example, a sliding closure comprising two refractory closure plates with a metal housing which can be fastened to the container and accommodates the upper closure plate and a container-side refractory inlet sleeve. The bottom closure or slide plate serving to open and close a spout opening is located in a metal slide.
BESTÄTIGUNGSKOPIE bereinheit angeordnet, die zusätzlich eine an die Schieberplatte anschliessende feuerfeste Ausgusshülse aufnimmt. CONFIRMATION COPY Berein arranged, which additionally receives a subsequent to the slide plate refractory spout.
Bekanntlich werden die feuerfesten Teile des Schiebeverschlusses, insbesondere die beiden Verschlussplatten, aber auch die behälterseitige Einlaufhüise sowie die an die Schieberplatte dichtend anschliessende Ausgusshülse einem starken Verschleiss ausgesetzt und müssen daher regelmässig ausgewechselt werden. As is known, the refractory parts of the sliding closure, in particular the two closure plates, but also the container-side intake hoses and the sealing plate sealingly connected to the pouring spout are subjected to severe wear and must therefore be replaced regularly.
Durch die beim Glessen entstehenden hohen Temperaturen wird aber auch der die Einlaufhülse und die obere Verschlussplatte aufnehmende Gehäuse sowie auch der die Schieberplatte und die diese Ausgusshüise beinhaltende Schiebereinheit stark beansprucht, insbesondere in dem die Ausgusshülse bzw. die Einlaufhülse umschliessenden, nahe der Durchflussöffnung liegenden Bereich, wo die grössten Temperaturen herrschen und daher die stärksten Spannungen entstehen. Dazu kommt, dass der Schiebeverschluss eine starke Erwärmung von unten erfährt, so dass insbesondere diese die Ausgusshülse aufnehmende Schiebereinheit extrem stark thermisch beansprucht wird. Due to the high temperatures that occur during the glazing, however, the housing accommodating the inlet sleeve and the upper closure plate as well as the slide unit and the slide unit containing this outlet hood are subjected to great stress, in particular in the area surrounding the pouring sleeve or the inlet sleeve, close to the flow opening. where the highest temperatures prevail and therefore the strongest tensions arise. In addition, the sliding closure undergoes a strong heating from below, so that in particular this pouring sleeve receiving the slide unit is subjected to extremely high levels of thermal stress.
Die gleiche Problematik ergibt sich auch bei Schiebeverschlüssen, die eine zwischen zwei ortsfesten Verschlussplatten verschiebbare Schieberplatte umfassen (vgl. z.B. EP 0 891 829 A1 ), bei denen das am Behälter befestigbare Gehäuse neben den beiden ortsfesten Verschlussplatten auch die Einlaufhülse sowie die Ausgusshülse bzw. das Giess- rohr aufnimmt. The same problem also arises with sliding closures which comprise a slide plate displaceable between two stationary closure plates (cf., for example, EP 0 891 829 A1), in which the housing which can be fastened to the container has, in addition to the two stationary closure plates, also the inlet sleeve and the pouring sleeve or the Casting tube absorbs.
Der vorliegenden Erfindung wurde die Aufgabe zugrundegelegt, einen Schiebeverschluss der eingangs genannten Art zu schaffen, der den beim Glessen entstehenden hohen Temperaturen besser standhält. Die Aufgabe wird erfindungsgemäss durch einen Schiebeverschluss nach den Merkmalen des Anspruches 1 gelöst. The present invention has been based on the object to provide a sliding closure of the type mentioned, which withstands the high temperatures resulting from the glaze better. The object is achieved according to the invention by a sliding closure according to the features of claim 1.
Weitere bevorzugte Ausgestaltungen des erfindungsgemässen Schiebeverschlusses bilden den Gegenstand der abhängigen Ansprüche. Further preferred embodiments of the inventive sliding closure form the subject of the dependent claims.
Dadurch, dass erfindungsgemäss das am Behälter befestigbare Gehäuse und/oder die Schiebereinheit mit einem die Ausgusshülse bzw. die Einlaufhülse umschliessenden Innenteil versehen ist, der mit dem übrigen Teil des Gehäuses bzw. der Schiebereinheit lösbar verbunden und diesem gegenüber thermisch ausdehnbar ist, werden gerade an den Stellen, wo die grössten Temperaturen herrschen, die Spannungen in der Schiebereinheit bzw. im Gehäuse abgebaut und die Gefahr, dass Risse entstehen, erheblich reduziert. Due to the fact that according to the invention the housing attachable to the container and / or the slide unit is provided with an inner part enclosing the spout sleeve or the inlet sleeve, which is releasably connected to the remaining part of the housing or the slide unit and thermally expandable relative thereto, are just starting Where the highest temperatures prevail, the stresses in the slide unit or in the housing are reduced and the risk of cracks is considerably reduced.
Bei Schiebeverschlüssen, die mit zwei oder mehreren Verschlussplatten ausgestattet sind, ist es insbesondere die Schiebereinheit, die zusätzlich von unten einer starken Erwärmung ausgesetzt ist und durch die erfin- dungsgemässe zweiteilige Ausgestaltung wirksam geschont werden kann. In sliding closures, which are equipped with two or more closure plates, it is in particular the slide unit, which is additionally exposed from the bottom of a strong heating and can be effectively protected by the inventive two-part design.
Die Erfindung ist jedoch auch bei Schiebeverschlüssen anwendbar, die zwei ortsfeste Verschlussplatten und eine dazwischen verschiebbare Schieberplatte umfassen. Hier ist es das am Behälter befestigbare Gehäuse, der in seinem unteren Bereich die Ausgusshülse (oder ein Giess- rohr) aufnimmt und von unten der besonders starken Erwärmung ausgesetzt ist. Erfindungsgemäss kann dieses Gehäuse zumindest in dem die Ausgusshülse umschliessenden Bereich zweiteilig ausgebildet und einen thermisch ausdehnbaren Innenteil aufweisen. However, the invention is also applicable to sliding closures comprising two fixed closure plates and a slide plate slidable therebetween. Here it is the housing which can be fastened to the container, which receives the pouring sleeve (or a pouring tube) in its lower area and is subjected to particularly intense heating from below. According to the invention, this housing can be formed in two parts, at least in the area enclosing the spout, and can have a thermally expandable inner part.
Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen: Fig. 1 ein Ausführungsbeispiel des erfindungsgemässen Schiebeverschlusses im Längsschnitt; The invention will be explained in more detail with reference to the drawing. Show it: 1 shows an embodiment of the inventive slide closure in longitudinal section.
Fig. 2 einen Teil des Schiebeverschlusses nach Fig. 1 in perspektivischer Explosionsdarstellung, und  Fig. 2 shows a part of the sliding closure of FIG. 1 in a perspective exploded view, and
Fig. 3 einen Teil des Schiebeverschlusses nach Fig. 1 im Querschnitt entlang der Achse der Durchflussöffnung.  Fig. 3 shows a part of the sliding closure according to Fig. 1 in cross section along the axis of the flow opening.
Fig.1 zeigt einen Schiebeverschluss 1 für einen metallurgischen Behälter, bei dem es sich beispielsweise um eine in einer Stranggiessanlage verwendete Pfanne für Stahlschmelze handeln kann. Der Behälter selber ist aus der Zeichnung nicht ersichtlich. Der Schiebeverschluss 1 weist ein am Behälter befestigbares metallenes Gehäuse 2 auf, in welchem eine obere Verschlussplatte 3 aus einem feuerfesten Material gehalten ist, angepresst an eine behälterseitige, ebenfalls feuerfeste Einlaufhülse 4, die in einen nicht dargestellten Behälter-Lochstein hineingeführt wird. 1 shows a sliding closure 1 for a metallurgical container, which may be, for example, a molten steel ladle used in a continuous casting plant. The container itself is not apparent from the drawing. The sliding closure 1 has a fastened to the container metal housing 2, in which an upper closure plate 3 is held from a refractory material, pressed against a container side, also refractory inlet sleeve 4, which is guided into a container hole punch, not shown.
Eine weitere, untere Verschlussplatte 5, eine sogenannte Schieberplatte, wird in einer längsbeweglichen metallenen Schiebereinheit 6 derselben gehalten und in einer beispielsweise aus der EP 1 119 428 an sich bekannten und daher nicht näher beschriebenen Weise an die obere Verschlussplatte 3 angepresst. In der Schiebereinheit 6 ist ferner eine an die Schieberplatte 5 anschliessende feuerfeste Ausgusshülse 8 angeordnet, die mittels eines Verspannungsorgans 9 an die Schieberplatte 5 angepresst wird. Durch ein Verschieben der Schiebereinheit 6 und der darin eingesetzten Schieberplatte 5 aus der in Fig. 1 dargestellten Öffnungsstellung in eine Drossel- oder Schliessstellung kann die durch die Einlaufhülse 4 und die obere Verschlussplatte 3 mit ihrer Durchgangsöffnung 3a definierte Ausgussöffnung 10 teilweise oder ganz geschlossen werden. In Fig. 1 ist der Anschluss 1 1 der Schiebereinheit 6 an einen das Verschieben bewirkenden Linearantrieb angedeutet. Die beiden Verschlussplatten 3, 5 sind im jeweiligen Gehäuse mittels Zentrierorgane 13 in einer an sich bekannten und im weiteren nicht näher beschriebenen Weise zentriert. Another lower closure plate 5, a so-called slide plate, is held in a longitudinally movable metal slide unit 6 thereof and pressed against the upper closure plate 3 in a manner known per se from EP 1 119 428 and therefore not described in greater detail. In the slide unit 6, a subsequent to the slide plate 5 refractory spout 8 is further arranged, which is pressed by means of a Verspannungsorgans 9 to the slide plate 5. By moving the slide unit 6 and the slide plate 5 inserted therein from the open position shown in FIG. 1 into a throttling or closing position, the spout opening 10 defined by the inlet sleeve 4 and the upper closure plate 3 with its through-opening 3a can be partially or completely closed. In Fig. 1, the terminal 1 1 of the slider unit 6 is indicated to a displacement causing linear actuator. The two closure plates 3, 5 are centered in the respective housing by means of centering members 13 in a manner known per se and not further described below.
Erfindungsgemäss ist der die Schieberplatte 5 und die Ausgusshülse 8 aufnehmende Schiebereinheit 6 mit einem die Ausgusshülse 8 umschlie- ssenden Innenteil 7a versehen, der mit dem übrigen Teil 7b des Schiebereinheit 6 lösbar verbunden und diesem gegenüber thermisch ausdehnbar ist. According to the invention, the slide unit 5 accommodating the slide plate 5 and the pouring sleeve 8 is provided with an inner part 7a enclosing the pouring sleeve 8, which is detachably connected to the remaining part 7b of the slide unit 6 and thermally expandable with respect to it.
Beim dargestellten Ausführungsbeispiel weist der Innenteil 7a, der auch aus Fig. 2 ersichtlich ist, zwei einander diametral gegenüberliegende Flanschteile 17, 18 auf, mit denen er in entsprechende Nuten 19 der übrigen Schiebereinheit 7b hineingeführt und danach mit diesem verschraubt werden kann. Zu diesem Zwecke sind vorzugsweise Passschulterschrauben 20 und für diese in dem einen Flanschteil 17 eine Passöffnung 21 und in dem anderen Flanschteil 18 ein Langloch 22 vorgesehen. Während über die eine Passschulterschraube 20 und die Passöffnung 21 des Innenteils, der in seinem unteren Bereich 27 mit dem bereits erwähnten Verspannungsorgan 9 zur Verspannung der Ausgusshülse 8 mit der darüber liegenden Verschlussplatte 5 in einer bajonettartigen Verbindung steht, positioniert wird, erlaubt das Langloch 22 eine thermische Dehnung des Innenteiles 7a quer zur Achse A der Ausgussöffnung 10. Zwischen dem auf dem Bajonettring 9 von aussen eingreifenden Innenteils und der Ausgusshülse 8 ist ein radialer Luftspalt 28 vorhanden, der eine Art Temperaturbarriere zwischen der Ausgusshülse 8 und der zweiteiligen Schiebereinheit 6 bildet. In the illustrated embodiment, the inner part 7a, which is also apparent from Fig. 2, two diametrically opposed flange 17, 18, with which it can be guided into corresponding grooves 19 of the other slide unit 7b and then screwed with this. For this purpose, preferably shoulder screws 20 and for this in the one flange 17, a fitting opening 21 and in the other flange 18 a slot 22 are provided. While the one fitting shoulder screw 20 and the fitting opening 21 of the inner part, which is in a bayonet-type connection in its lower portion 27 with the already mentioned bracing member 9 for bracing the spout 8 with the overlying closure plate 5, allows the slot 22 a thermal expansion of the inner part 7a transverse to the axis A of the spout opening 10. Between the engaging on the bayonet ring 9 from the outside inner part and the spout 8, a radial air gap 28 is present, which forms a kind of temperature barrier between the spout 8 and the two-part slide unit 6.
Die in die Schiebereinheit 6 eingeschraubten Passschulterschrauben 20 sind mit Vorteil in einer Längsmittelebene des Schiebeverschlusses angeordnet. Vorzugsweise ist derjenige Flanschteil 22 des Innenteils mit dem Langloch 22 für die Passschulterschraube 20 versehen, der beim Verschieben der Schiebereinheit 6 in die Schliessstellung näher zur Achse A der Ausgussöffnung liegt und daher beispielsweise in einer Drosselstellung des Schiebeverschlusses der grösseren Temperatur ausgesetzt wird. The fitting shoulder screws 20 screwed into the slide unit 6 are advantageously arranged in a longitudinal center plane of the slide fastener. Preferably, that flange portion 22 of the inner part is provided with the slot 22 for the fitting shoulder screw 20, the at Moving the slide unit 6 is closer to the axis A of the spout opening in the closed position and is therefore exposed to the greater temperature, for example, in a throttle position of the sliding closure.
Bei dem in Fig. 1 dargestellten Ausführungsbeispiel ist auch das am Behälter befestigbare Gehäuse 2 zweiteilig ausgebildet und mit einem die Einlaufhülse 4 umschliessenden, vorzugsweise ringförmigen Innenteil 2a versehen. Dieser als ein Verschleissring dienende Innenteil 2a ist über eine Anzahl von axial gerichteten, über den Umfang verteilten Befestigungsbolzen 30 mit dem übrigen Gehäuse 2b lösbar verbunden. Der Innenteil 2a weist eine konische, sich nach oben verjüngende Innenfläche 31 auf, die auf einer konischen, sich nach oben verjüngenden äusseren Absatzfläche 32 der Einlaufhülse 4 aufliegt. An die konische Innenfläche 31 schliessen sich zylindrische Innenflächen 33, 34 an, wobei zwischen diesen zylindrischen Innenflächen 33, 34 und dem Aussenumfang der Einlaufhülse 4 ein radialer Luftspalt 35 vorhanden ist. In the embodiment shown in FIG. 1, the housing 2 which can be fastened to the container is also designed in two parts and provided with a preferably annular inner part 2 a enclosing the inlet sleeve 4. This serving as a wear ring inner part 2a is detachably connected via a number of axially directed, distributed over the circumference fastening bolts 30 with the rest of the housing 2b. The inner part 2a has a conical, upwardly tapering inner surface 31, which rests on a conical, upwardly tapering outer shoulder surface 32 of the inlet sleeve 4. Cylindrical inner surfaces 33, 34 adjoin the conical inner surface 31, wherein a radial air gap 35 is present between these cylindrical inner surfaces 33, 34 and the outer circumference of the inlet sleeve 4.
Dadurch, dass das am Behälter befestigbare Gehäuse 2, vor allem aber der Gehäuserahmen 7 der Schiebereinheit 6 zweiteilig ausgebildet und mit einem die Ausgusshülse 8 bzw. die Einlaufhülse 4 umschliessenden Innenteil 2a; 7a versehen ist, mit dem Luftspalten gebildet werden und thermische Ausdehnung ermöglicht wird, werden gerade an den Stellen, wo die grössten Temperaturen herrschen, die Spannungen im Gehäuserahmen 7 bzw. im Gehäuse 2 abgebaut und die Gefahr, dass Risse entstehen, erheblich reduziert. Bei Schiebeverschlüssen, die mit zwei Verschlussplatten ausgestattet sind, ist es die Schiebereinheit 6, die zusätzlich von unten einer starken Erwärmung ausgesetzt ist und durch die er- findungsgemässe zweiteilige Ausgestaltung wirksam geschont werden kann. Gemäss Fig. 3 ist zum einen dieser obere, die Einlaufhülse 4 zentrierende, als Ring ausgebildeter Innenteil 2a und zum andern ein im Gehäuse 2 enthaltender und die Einlaufhülse 4 teilweise umgebender Innenteil 2a' vorgesehen. Dieser Innenteil 2a' ist zweiteilig ausgebildet und vorteilhaft ist er beabstandet zur Einlaufhülse 4 angeordnet. Due to the fact that the housing 2 which can be fastened to the container, but above all the housing frame 7 of the slide unit 6, is designed in two parts and has an inner part 2a enclosing the pouring sleeve 8 or the inlet sleeve 4; 7a is provided, are formed with the air gaps and thermal expansion is possible, just in the places where the greatest temperatures prevail, the stresses in the housing frame 7 and in the housing 2 degraded and the risk of cracks, significantly reduced. In sliding closures, which are equipped with two closure plates, it is the slide unit 6, which is additionally exposed from the bottom of a strong heating and can be effectively protected by the inventive two-part design. According to Fig. 3, on the one hand, this upper, the inlet sleeve 4 centering, designed as a ring inner part 2a and on the other hand in the housing 2 containing and the inlet sleeve 4 partially surrounding inner part 2a 'is provided. This inner part 2a 'is formed in two parts and, advantageously, it is arranged at a distance from the inlet sleeve 4.
Der Erfindungsgedanke ist jedoch auch bei Schiebeverschlüssen anwendbar, die zwei ortsfeste Verschlussplatten und eine dazwischen verschiebbare Schieberplatte umfassen. Hier ist es das am Behälter befestigbare Gehäuse, der in seinem unteren Bereich die Ausgusshülse (oder ein Giessrohr) aufnimmt und von unten der besonders starken Erwärmung ausgesetzt ist. Erfindungsgemäss kann dieses Gehäuse zumindest in dem die Ausgusshülse umschliessenden Bereich zweiteilig ausgebildet und einen thermisch ausdehnbaren Innenteil aufweisen. Selbstverständlich könnte jedoch dieses Gehäuse auch mit einem weiteren Innenteil im Bereich der Einlaufhülse ausgestattet sein. However, the invention is also applicable to sliding closures comprising two fixed closure plates and a slide plate slidable therebetween. Here it is the housing attachable to the container, which receives in its lower part the spout (or a pouring tube) and is exposed from the bottom of the particularly strong heating. According to the invention, this housing can be formed in two parts, at least in the area enclosing the spout, and can have a thermally expandable inner part. Of course, however, this housing could also be equipped with a further inner part in the region of the inlet sleeve.
Als Gehäusematerial eignet sich insbesondere Grauguss oder Sphäro- guss. Die Innenteile 7a, 2a und die übrigen Gehäusepartien 7b, 2b können dabei auch aus unterschiedlichen Materialien bestehen. Die Befestigungsmittel wie z. B. die Passschulterschrauben 20 bestehen ebenfalls aus einem möglichst temperaturbeständigen Material. Cast iron or spheroidal cast iron is particularly suitable as the housing material. The inner parts 7a, 2a and the other housing sections 7b, 2b can also consist of different materials. The fasteners such. B. the passport shoulder screws 20 are also made of a temperature-resistant material as possible.

Claims

PATENTANSPRÜCHE
1. Schiebeverschluss für einen metallurgischen Behälter, mit mindestens zwei feuerfesten Verschlussplatten (3; 5), von denen eine in einer metallenen Schiebereinheit (6) angeordnet ist und zum Öffnen und Schliessen einer Ausgussöffnung (10) dient, und die mindestens eine weitere Verschlussplatte (3) in einem am Behälter befestigbaren metallenen Gehäuse (2) angeordnet ist, wobei dieses mindestens eine ortsfeste Gehäuse (2) und/oder die Schiebereinheit (6) zusätzlich eine behäl- terseitige, obere feuerfeste Einlaufhülse (4) und/oder eine untere feuerfeste Ausgusshülse (8) aufnimmt, dadurch gekennzeichnet, dass im Gehäuse (2) und/oder in der Schiebereinheit (6) je mindestens ein zusätzlicher Innenteil (2a, 2a', 7a) angeordnet ist, welcher jeweils die Ausgusshülse (8) bzw. die Einlaufhülse (4) umfasst. A sliding closure for a metallurgical container, comprising at least two refractory closure plates (3; 5), one of which is arranged in a metal slide unit (6) and serves to open and close a pouring opening (10), and the at least one further closure plate (3). 3) is arranged in a metal housing (2) which can be fastened to the container, this at least one stationary housing (2) and / or the slide unit (6) additionally having a container-side, upper refractory inlet sleeve (4) and / or a lower refractory Discharge sleeve (8) receives, characterized in that in the housing (2) and / or in the slide unit (6) each at least one additional inner part (2a, 2a ', 7a) is arranged, which in each case the spout (8) or the Includes inlet sleeve (4).
2. Schiebeverschluss nach Anspruch 1 , dadurch gekennzeichnet, dass der Innenteil (2a; 7a) ringförmig ausgebildet, koaxial zur Ausgussbzw. Einlaufhülse (8 bzw. 4) angeordnet und über eine Anzahl von axial gerichteten Befestigungsmitteln (20; 30) mit dem übrigen Teil (2b; 7b) des Gehäuses (2) bzw. des Schäebereinheit (6) lösbar verbunden ist. 2. Sliding closure according to claim 1, characterized in that the inner part (2 a, 7 a) is annular, coaxial with the Ausgussbzw. Inlet sleeve (8 or 4) is arranged and via a number of axially directed fastening means (20; 30) with the remaining part (2b, 7b) of the housing (2) and the Schäebereinheit (6) is detachably connected.
3. Schiebeverschluss nach Anspruch 2, dadurch gekennzeichnet, dass der die Ausgusshülse (8) umschliessende, wenigstens in einer Richtung dehnbare Innenteil (7a) zwei einander diametral gegenüberliegende Flanschteile (17, 18) aufweist, mit denen er in entsprechende Nuten (19) der übrigen Schiebereinheit hineinführbar ist, und die mit Öffnungen (21 , 22) für die Befestigungsmittel versehen sind. 3. Sliding closure according to claim 2, characterized in that the spout (8) enclosing, at least in one direction stretchable inner part (7 a) has two diametrically opposed flange (17, 18), with which it in corresponding grooves (19) of remaining slide unit is guided, and which are provided with openings (21, 22) for the fastening means.
4. Schiebeverschluss nach Anspruch 3, dadurch gekennzeichnet, dass die Befestigungsmittel je eine Passschulterschraube (20) umfassen, wobei der eine Flanschteil (17) eine Passöffnung (21 ) und der andere ein Langloch (22) zum Durchführen der jeweiligen Passschulterschraube (20) aufweist. 4. sliding closure according to claim 3, characterized in that the fastening means each comprise a fitting shoulder screw (20), wherein the one flange (17) has a fitting opening (21) and the other an elongated hole (22) for performing the respective fitting shoulder screw (20) ,
5. Schiebeverschluss nach Anspruch 4, dadurch gekennzeichnet, dass die in diese Schiebereinheit (6) eingeschraubten Passschulterschrauben (20) in einer Längsmittelebene des Schiebeverschlusses angeordnet sind. 5. sliding closure according to claim 4, characterized in that in this slide unit (6) screwed Passschulterschrauben (20) are arranged in a longitudinal center plane of the sliding closure.
6. Schiebeverschluss nach Anspruch 5, dadurch gekennzeichnet, dass derjenige Flanschteil (18) des Innenteils (7a) mit dem Langloch (22) für die Passschulterschraube (20) versehen ist, der beim Verschieben der Schiebereinheit (6) in die Schliessstellung näher zur Achse (A) der Ausgussöffnung (10) liegt. 6. Sliding closure according to claim 5, characterized in that that flange part (18) of the inner part (7a) with the slot (22) for the Passschulterschraube (20) is provided when moving the slide unit (6) in the closed position closer to the axis (A) of the spout opening (10) is located.
7. Schiebeverschluss nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass der Innenteil (7a) mit 7. sliding closure according to one of claims 3 to 6, characterized in that the inner part (7 a) with
einem Verspannungsorgan (9) zur Verspannung der Ausgusshülse (8) mit der darüber liegenden Verschlussplatte (5) in einer bajonettartigen Verbindung steht. a tensioning member (9) for clamping the spout (8) with the overlying closure plate (5) is in a bayonet-type connection.
8. Schiebeverschluss nach Anspruch 7, dadurch gekennzeichnet, dass zwischen dem auf dem Verspannungsorgan (9) von aussen eingreifenden Innenteil (7a) und der Ausgusshülse (8) ein radialer Luftspalt (28) vorhanden ist. 8. Sliding closure according to claim 7, characterized in that between the on the tensioning member (9) from the outside engaging inner part (7a) and the spout (8), a radial air gap (28) is present.
9. Schiebeverschluss nach Anspruch 1 , dadurch gekennzeichnet, dass der im Gehäuse (2) enthaltende und die Einlaufhülse (4) umgebende Innenteil (2a') mehrteilig ausgebildet ist. 9. sliding closure according to claim 1, characterized in that in the housing (2) containing and the inlet sleeve (4) surrounding the inner part (2 a ') is formed in several parts.
10. Schiebeverschluss nach Anspruch 2, dadurch gekennzeichnet, dass der die Einlaufhülse (4) umschliessende, oberhalb des Innenteils (2a') angeordnete Innenteil (2a) des am Behälter befestigbaren Gehäuses (2) eine konische, sich nach oben verjüngende Innenfläche (31 ) aufweist, die auf einer konischen, sich nach oben verjüngenden äusseren Absatzfläche (32) der Einlaufhülse (4) aufliegt. 10. Sliding closure according to claim 2, characterized in that the inlet sleeve (4) enclosing, above the inner part (2a ') arranged inner part (2a) of the housing attachable to the housing (2) has a conical, upwardly tapering inner surface (31). has, which rests on a conical, upwardly tapering outer shoulder surface (32) of the inlet sleeve (4).
1 1 . Schiebeverschluss nach Anspruch 10, dadurch gekennzeichnet, dass der Innenteil (2a) an die konische Innenfläche (31 ) anschliessende zylindrische Innenflächen (33, 34) aufweist, wobei zwischen diesen zylindrischen Innenflächen (33, 34) und dem Aussenumfang der Einlaufhülse (4) ein radialer Luftspalt (35) vorhanden ist. 1 1. Sliding closure according to claim 10, characterized in that the inner part (2a) to the conical inner surface (31) adjoining cylindrical inner surfaces (33, 34), wherein between these cylindrical inner surfaces (33, 34) and the outer circumference of the inlet sleeve (4) radial air gap (35) is present.
EP10801135.4A 2009-12-21 2010-12-20 Sliding closure for a metallurgical container Active EP2516086B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02016/09A CH702467B1 (en) 2009-12-21 2009-12-21 Sliding closure for a metallurgical container.
PCT/EP2010/007790 WO2011085787A1 (en) 2009-12-21 2010-12-20 Sliding closure for a metallurgical container

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EP2516086A1 true EP2516086A1 (en) 2012-10-31
EP2516086B1 EP2516086B1 (en) 2018-11-07

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EP10801135.4A Active EP2516086B1 (en) 2009-12-21 2010-12-20 Sliding closure for a metallurgical container

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US (1) US8939331B2 (en)
EP (1) EP2516086B1 (en)
KR (1) KR101872036B1 (en)
CN (1) CN102834205B (en)
CH (1) CH702467B1 (en)
WO (1) WO2011085787A1 (en)

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Publication number Priority date Publication date Assignee Title
EP2371471A1 (en) * 2010-03-19 2011-10-05 Vesuvius Group S.A Internal nozzle for transferring liquid metal contained in a container, system for clamping said nozzle and pouring device
CN210059791U (en) * 2017-11-10 2020-02-14 维苏威集团有限公司 Bottom plate assembly comprising bayonet-type free liquid collecting nozzle
EP3851225A1 (en) 2020-01-15 2021-07-21 Refractory Intellectual Property GmbH & Co. KG Sliding closure for a metallurgical container
CN113000830A (en) * 2021-02-25 2021-06-22 佟长功 Safe refractory molten steel flow controller

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US4561573A (en) * 1982-08-20 1985-12-31 Flo-Con Systems, Inc. Valve and replaceable collector nozzle
US4582232A (en) * 1984-06-19 1986-04-15 Flo-Con Systems, Inc. Valve, clamp, refractory and method
DE3500865C2 (en) 1985-01-12 1987-01-22 Stopinc Ag, Baar Sliding closure, especially for vessels containing molten steel
DE3500866C2 (en) * 1985-01-12 1987-01-22 Stopinc Ag, Baar Interchangeable spout on a sliding closure for the pouring of metallurgical vessels, in particular steel ladles
WO1992017298A1 (en) * 1991-04-06 1992-10-15 Technometal Gesellschaft für Metalltechnologie mbH Slide bolt for melting pots
JPH11129064A (en) 1997-07-16 1999-05-18 Stopinc Ag Slide closing device for container containing molten metal
BR9912141A (en) 1998-07-26 2001-11-20 Stopinc Ag Sliding gate valve for a container containing molten metal
JP4404641B2 (en) * 2002-03-25 2010-01-27 シュトピンク・アクティーエンゲゼルシャフト Slide stopper operation method and slide stopper

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See references of WO2011085787A1 *

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WO2011085787A1 (en) 2011-07-21
KR20120106770A (en) 2012-09-26
CN102834205B (en) 2016-07-06
KR101872036B1 (en) 2018-06-27
CH702467B1 (en) 2021-07-15
EP2516086B1 (en) 2018-11-07
US8939331B2 (en) 2015-01-27
CN102834205A (en) 2012-12-19
US20120273532A1 (en) 2012-11-01
CH702467A2 (en) 2011-06-30

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