EP3247515B1 - Sliding closure for a container containing molten metal - Google Patents

Sliding closure for a container containing molten metal Download PDF

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Publication number
EP3247515B1
EP3247515B1 EP15804099.8A EP15804099A EP3247515B1 EP 3247515 B1 EP3247515 B1 EP 3247515B1 EP 15804099 A EP15804099 A EP 15804099A EP 3247515 B1 EP3247515 B1 EP 3247515B1
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EP
European Patent Office
Prior art keywords
housing part
slide
holding means
bearings
slide closure
Prior art date
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EP15804099.8A
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German (de)
French (fr)
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EP3247515A1 (en
Inventor
Jean-Daniel Cousin
Rebecca Gisler
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Refractory Intellectual Property GmbH and Co KG
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Refractory Intellectual Property GmbH and Co KG
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Priority to PL15804099T priority Critical patent/PL3247515T3/en
Publication of EP3247515A1 publication Critical patent/EP3247515A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—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 slide closure for a container containing molten metal, with a housing part which can be fastened to this and a slide unit which can be longitudinally displaced relative to it and in each of which a refractory slide plate can be inserted, the slide unit being held in a longitudinally displaceable manner by a plurality of holding means attached to the housing part perpendicular to it.
  • Sliding closures of this type are known to be used in continuous casting systems for opening and closing the pouring opening of a metallurgical vessel.
  • the molten steel causes high temperatures, which are also transferred to the valve body in the vicinity of the refractory valve plates.
  • the temperatures are much lower, roughly close to room temperature in the surrounding area.
  • the slide housing must nevertheless also be stable in this area for the attachment of the holding means for the slide unit.
  • a slide fastener of the type mentioned is in the document EP-A-1 119 428 disclosed, in which the housing part extends in the displacement direction over the entire length and laterally to outside of the holding means, so that these holding means are placed in the area between the slide plates and the longitudinal walls of the housing part.
  • the holding means fastened in the housing part are connected to one another on both sides of the closure plates by means of a connecting rod. This has the effect that the slide unit can only be released from the housing part when it can be moved into this position, which is outside the open and closed positions, in which the spring members are then relaxed.
  • the invention is based on the object of avoiding these disadvantages and of creating a sliding lock of the type mentioned at the beginning, which can also be opened in the event of a malfunction, in particular when the sliding unit can no longer be moved.
  • the housing part should not be susceptible to cracking and should at the same time be stable enough in terms of strength so that the holding means that hold the slide unit on it are properly supported.
  • the housing part of the slide fastener very advantageously has walls running in the longitudinal direction relatively close to the slide plates with lateral extensions which are provided with bearings for the individual holding means of the slide unit.
  • the required rigidity of the housing is nevertheless sufficient for the secure storage of the holding means for the slide unit in the eye-shaped bearings of the housing and an improved plate support that remains straight is thereby achieved.
  • the invention also provides that the housing part has two lateral extensions on each side, the bearings of which are arranged in the housing part symmetrically to the pouring opening of the slide closure. This symmetrical arrangement enables the holding means to be optimally transmitted to the slide unit and thus to the slide plates of the closure that are to be pressed against one another.
  • the invention further provides that the holding means are provided with sliding rollers sliding on guide tracks of the slide unit parallel to the working plane of the slide lock, which are acted upon against the guide tracks by spring elements arranged in the bearings. In this way, any deformations of the eye-shaped bearings are compensated without affecting the guidance of the slide unit along its guideways.
  • the holding means In terms of a simple construction of the holding means, it is expedient if they have a bolt-shaped connecting member guided in their bearings and a carrier for at least one sliding roller, preferably detachably connected to it.
  • the eye-shaped bearings are designed as bearing bushes and these attachments receiving them have a bushing diameter that is adapted to the bushing diameter semicircular end part, preferably in the form of a half-shell which closes off the approach at the end face.
  • the invention also provides that the slide unit is hinged to the housing part by means of a hinge connection, the hinge wings of which are attached on the one hand to the slide unit and on the other hand directly to one longitudinal wall of the housing part. As a result, the hinge wings are securely attached to the housing part.
  • the slide lock 10 according to Fig. 1 or. Fig. 2 is suitable as a closure member in a pouring ladle (not shown in detail) or a similar container containing molten metal, such as are used in particular in continuous casting plants for steel. Of course it is also suitable as a locking device, for example for foundries in the non-ferrous metal sector.
  • This sliding closure 10 consists essentially of a housing part 1 and a sliding unit 2 which is longitudinally displaceable in relation to this and which is articulated on the longitudinal side of the housing part 1 with a hinge connection 3.
  • an upper refractory base plate 4 is fastened, to which a lower refractory slide plate 5 of the slide unit 2 is pressed in the closed state, the latter being held in a longitudinally displaceable manner by several holding means 6a, 6b and 7a, 7b fastened perpendicular to it on the housing part 1.
  • the normally cast housing part 1 has outer walls 8, 9 running in the longitudinal direction relatively close to the plates 4, 5 with lateral extensions 10a, 10b and 11a, 11b, which preferably have eye-shaped bearings 12 for the individual holding means 6a, 6b and 7a, 7b of the slide unit 2 are provided.
  • These side walls 8, 9 of the housing part 1 are each dimensioned at a distance of approximately one to several centimeters from the outer sides of the plates 4, 5 so that this housing part has an approximately uniform temperature distribution in the operating state during casting.
  • the holding means 6a, 6b and 7a, 7b are in turn provided parallel to the working plane of the sliding lock 10 with sliding rollers 14 sliding on guide tracks 13a, 13b of the slider unit 2, which against the guide tracks 13a, 13b by spring elements built into the bearings 12 15 are acted upon.
  • These guideways 13a, 13b are in turn divided in the conventional manner by an opening 34 each for releasing a respective sliding roller 14 and provided at the end with ramps 33 in order to be able to tension or relax the holding means and with them the spring members, as described in the publication EP-A-1 119 428 is explained in detail.
  • the bearings 12 of the holding means 6a, 6b, 7a, 7b are designed as bearing bushes, the lugs 10a, 10b; 11a, 11b are provided with a semicircular end part adapted to the bushing diameter in the form of a half-shell that closes off the neck at the end.
  • the housing part 1 has two lateral extensions 10a, 10b or 11a, 11b on both sides, the bearings 12 of which are placed in the housing part 1 symmetrically to the pouring opening 16 of the slide closure 10.
  • This arrangement enables optimal power transmission from the holding means 6a, 6b; 7a, 7b onto the slide unit 2 and thus onto the plates 4, 5 which are pressed against one another in the closed state.
  • the individual holding means 6a, 6b; 7a, 7b consist of a bolt-shaped connecting member 17 guided in the bearings 12 and a carrier 18, detachably connected to it to facilitate assembly, for the sliding roller mounted thereon.
  • the carrier 18 can be provided on both sides with sliding rollers running along their own guide tracks. Instead of sliding rollers, sliding blocks and similar sliding elements can also be used.
  • these holding means 6a, 6b; 7a, 7b individually detachably fastened to the housing part 1 in such a way that they can be released from the housing part in almost any position of the slide unit 2 in the clamped state of the slide lock 10. This is particularly important in the event of a malfunction, when the slide unit can no longer be moved primarily in the event of a breakthrough due to welded molten steel.
  • Fig. 3 shows the slide unit 2 released from the housing part 1 according to the invention.
  • the bearings 12 of the holding means 6a, 6b; 7a, 7b are each removed in the manner of a bayonet by rotating the housing part 1 perpendicular to the latter.
  • the bearings 12 and with them the holding means 6a, 6b; 7a, 7b are each rotated by a certain angle, with the sliding rollers 14 connected to them also being pivoted, which lie against the guide tracks 13a, 13b of the slide unit 2.
  • the holding means 6a, 6b; 7a, 7b with the bearings 12 can then be removed from the slide unit 2 and, as the case may be, fastened again in the housing part 1.
  • the bearings 12 of the holding means 6a, 6b; 7a, 7b each with longitudinal guides 12 'running uniformly over the circumference on their outer side, which are each like a bayonet in corresponding grooves 10 ", 11" of an opening 10', 11 'in the approach 10a, 10b and 11a, 11b of the Housing part 1 can be inserted and then secured therein by twisting and fixing by means of a locking means 26.
  • These openings 10 ', 11' are here with a provided cylindrical part in which a respective bearing 12 can be rotated and positioned.
  • Fig. 4 shows the one extension 10a of the housing part 1 and the bearing 12 of a holding means fixed therein by the locking means 26.
  • the bearing 12 is rotated in the respective opening 10 ', 11' until its longitudinal guides 12 'rest over those of the openings 10', 11 '.
  • FIG. 5 the position of the bearing 12 with the locking means 26 removed and the rotated position in the opening 10 ', 11' illustrated, in which the bearing 12 with its longitudinal guides 12 'can be displaced through the grooves 10 "and removed from the housing part 1.
  • the inner wall of the opening 10 ', 11' are each associated with corresponding longitudinal guides 27 to those of the bearing 12, between which the grooves 10 ′′ run.
  • Fastening screws not shown, which can be swiveled into corner tabs 19 of housing part 1 and then tightened against them, are used to fasten the sliding closure to the pouring ladle.
  • a drive element likewise not illustrated, in the form of a hydraulic cylinder, the push rod of which can be connected to a coupling claw 20 of the slide unit.
  • the slide unit 2 is articulated in a manner known per se on the housing part 1 by means of the hinge connection 3, the hinge wings 21, 22 are fastened on the one hand to the slide unit 2 and on the other hand directly to the one longitudinal wall 9 of the housing part 1.
  • the construction according to the invention of the housing part 1 is also suitable for a sliding lock, the holding means 7a, 7b; 8a, 8b are designed differently than described above, insofar as they also have a storage of the holding means in the lugs 10a, 10b; 11a 11b of the slide unit 2 is possible.
  • the invention is sufficiently demonstrated with the illustrated embodiment. However, it could also be clarified by other variants. So it could also be a three-plate slide lock, in which a slide plate would be arranged in a conventional manner in an additional frame between the housing part and the slide unit. The housing part would then be in the same way as in the variant after Fig. 1 designed with the advantages according to the invention, the slide unit then being guided displaceably solely for the purpose of automatically tensioning the closure.
  • the holding means could be detachably attached to the housing part in a manner other than bayonet-like, for example by a type of screw connection or a snap coupling or the like.

Description

Die Erfindung betrifft einen Schiebeverschluss für einen Metallschmelze enthaltenden Behälter, mit einem an diesem befestigbaren Gehäuseteil und einer relativ zu ihm längsverschiebbaren Schiebereinheit, in welche je eine feuerfeste Schieberplatte einsetzbar ist, wobei die Schiebereinheit von mehreren senkrecht zu ihr am Gehäuseteil befestigten Haltemitteln längsverschiebbar gehalten ist.The invention relates to a slide closure for a container containing molten metal, with a housing part which can be fastened to this and a slide unit which can be longitudinally displaced relative to it and in each of which a refractory slide plate can be inserted, the slide unit being held in a longitudinally displaceable manner by a plurality of holding means attached to the housing part perpendicular to it.

Schiebeverschlüsse dieser Art werden bekanntlich bei Stranggiessanlagen zum Öffnen und Schliessen der Ausgussöffnung eines metallurgischen Gefässes eingesetzt. Im Betrieb werden durch die Stahlschmelze hohe Temperaturen verursacht, die sich in der Umgebung der feuerfesten Schieberplatten auch auf das Schiebergehäuse übertragen. Im Aussenbereich des Gehäuses herrschen dagegen wesentlich niedrigere Temperaturen, etwa nahe der Raumtemperatur in der Umgebung. Das Schiebergehäuse muss dennoch auch in diesem Bereich für die Befestigung der Haltemittel für die Schiebereinheit stabil sein.Sliding closures of this type are known to be used in continuous casting systems for opening and closing the pouring opening of a metallurgical vessel. During operation, the molten steel causes high temperatures, which are also transferred to the valve body in the vicinity of the refractory valve plates. In the outer area of the housing, on the other hand, the temperatures are much lower, roughly close to room temperature in the surrounding area. The The slide housing must nevertheless also be stable in this area for the attachment of the holding means for the slide unit.

Ein Schiebeverschluss der eingangs genannten Art ist in der Druckschrift EP-A-1 119 428 geoffenbart, bei welchem sich das Gehäuseteil in Verschieberichtung über die gesamte Länge und seitlich bis ausserhalb der Haltemittel erstreckt, so dass diese Haltemittel im Bereich zwischen den Schieberplatten und den Längswandungen des Gehäuseteils platziert sind. Dadurch kann zwar eine hohe Steifigkeit des Schiebergehäuses erzielt werden, es entsteht aber dort gleichzeitig eine erhöhte Rissanfälligkeit, da das grosse Temperaturgefälle zwischen dem Innen- und dem Aussenbereich des Gehäuses unterschiedliche Wärmeausdehnungen und damit sehr hohe Spannungen in der Übergangszone zwischen beiden Bereichen verursacht.A slide fastener of the type mentioned is in the document EP-A-1 119 428 disclosed, in which the housing part extends in the displacement direction over the entire length and laterally to outside of the holding means, so that these holding means are placed in the area between the slide plates and the longitudinal walls of the housing part. This allows the valve body to be very rigid, but at the same time it is more susceptible to cracking, as the large temperature gradient between the inner and outer areas of the housing causes different thermal expansions and thus very high stresses in the transition zone between the two areas.

In der Druckschrift CH-A-707 075 sind in dem Schiebergehäuse aussenseitig vier Stützkörper mit nach innen gerichteten Führungsrollen befestigt. In diesen Stützkörpern sind Federorgane für das Anpressen des Rahmens der Schiebereinheit und der darin enthaltenden Verschlussplatte gegen das Schiebergehäuse bzw. gegen die Verschlussplatte in letzterem enthalten. Damit kann aber bei einem Durchbruch als Störungsfall, insbesondere wenn die Schiebereinheit nicht mehr bewegt werden kann, der Schiebeverschluss nurmehr als Gesamtes von dem Behälter entfernt werden.In the pamphlet CH-A-707 075 Four support bodies with inwardly directed guide rollers are attached to the outside of the valve housing. These support bodies contain spring elements for pressing the frame of the slide unit and the closure plate contained therein against the slide housing or against the closure plate in the latter. However, in the event of a breakthrough as a malfunction, in particular if the slide unit can no longer be moved, the slide closure can only be removed as a whole from the container.

Zudem sind die im Gehäuseteil befestigten Haltemittel beidseitig zu den Verschlussplatten jeweils durch eine Verbindungsstange miteinander verbunden. Dies bewirkt, dass die Schiebereinheit nur dann vom Gehäuseteil gelöst werden kann, wenn sie in diese ausserhalb der Offen- und der Schliessstellung liegende Position verschoben werden kann, in der dann die Federorgane entspannt sind.In addition, the holding means fastened in the housing part are connected to one another on both sides of the closure plates by means of a connecting rod. This has the effect that the slide unit can only be released from the housing part when it can be moved into this position, which is outside the open and closed positions, in which the spring members are then relaxed.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden und einen Schiebeverschluss der eingangs genannten Art zu schaffen, welcher auch in einem Störungsfall, insbesondere wenn die Schiebereinheit nicht mehr bewegbar ist, geöffnet werden kann. Dabei soll der Gehäuseteil nicht rissanfällig und gleichsam festigkeitsmässig stabil genug ausgebildet sein, damit die Haltemittel, welche die Schiebereinheit an ihm halten, einwandfrei gelagert sind.The invention is based on the object of avoiding these disadvantages and of creating a sliding lock of the type mentioned at the beginning, which can also be opened in the event of a malfunction, in particular when the sliding unit can no longer be moved. The housing part should not be susceptible to cracking and should at the same time be stable enough in terms of strength so that the holding means that hold the slide unit on it are properly supported.

Diese Aufgabe ist erfindungsgemäss durch die Merkmale des Anspruchs 1 gelöst.According to the invention, this object is achieved by the features of claim 1.

Durch die lösbare einzelne Befestigung der Haltemittel am Gehäuseteil, derart, dass sie im verspannten Zustand des Schiebeverschlusses annähernd in jeder Stellung der Schiebereinheit von dem Gehäuseteil gelöst werden können, entsteht ein erheblicher Vorteil im Betrieb eines Schiebeverschlusses, weil damit bei den ab und zu auftretenden Störungen ein Öffnen desselben vielfach ermöglicht wird, ohne dass die Haltemittel und/oder andere Teile zerstört werden müssen.The detachable individual fastening of the holding means on the housing part, in such a way that they can be released from the housing part in almost any position of the slide unit when the slide lock is in the tensioned state, results in a considerable advantage in the operation of a slide lock, because this results in the occasional disturbances opening of the same is made possible many times without the holding means and / or other parts having to be destroyed.

Sehr vorteilhaft weist das Gehäuseteil des Schiebeverschlusses in Längsrichtung relativ nahe bei den Schieberplatten verlaufende Wandungen mit seitlichen Ansätzen auf, die mit Lagern für die einzelnen Haltemittel der Schiebereinheit versehen sind.The housing part of the slide fastener very advantageously has walls running in the longitudinal direction relatively close to the slide plates with lateral extensions which are provided with bearings for the individual holding means of the slide unit.

Auf diese Weise können die sonst im Gehäuseteil entstehenden Spannungen weitgehend ausgeräumt werden, weil im Betrieb die augenförmigen Lager sich unabhängig voneinander der Erhitzung anpassen können, auch wenn dort beträchtliche Temperaturunterschiede vorhanden sind.In this way, the stresses that otherwise arise in the housing part can be largely eliminated because, during operation, the eye-shaped bearings can adapt to the heating independently of one another, even if there are considerable temperature differences.

Die erforderliche Steifigkeit des Gehäuses ist dennoch ausreichend für die sichere Lagerung der Haltemittel für die Schiebereinheit in den augenförmigen Lagern des Gehäuses sichergellt und es wird aber damit eine verbesserte gerade bleibende Plattenauflage erzielt.The required rigidity of the housing is nevertheless sufficient for the secure storage of the holding means for the slide unit in the eye-shaped bearings of the housing and an improved plate support that remains straight is thereby achieved.

Die Erfindung sieht ebenfalls vor, dass das Gehäuseteil beidseitig je zwei seitliche Ansätze aufweist, deren Lager im Gehäuseteil symmetrisch zur Ausgussöffnung des Schiebeverschlusses angeordnet sind. Diese symmetrische Anordnung ermöglicht eine optimale Kraftübertragung der Haltemittel auf die Schiebereinheit und damit auf die gegeneinander anzupressenden Schieberplatten des Verschlusses.The invention also provides that the housing part has two lateral extensions on each side, the bearings of which are arranged in the housing part symmetrically to the pouring opening of the slide closure. This symmetrical arrangement enables the holding means to be optimally transmitted to the slide unit and thus to the slide plates of the closure that are to be pressed against one another.

Die Erfindung sieht weiterhin vor, dass die Haltemittel mit auf Führungsbahnen der Schiebereinheit parallel zur Arbeitsebene des Schiebeverschlusses gleitenden Gleitrollen versehen sind, welche gegen die Führungsbahnen durch in den Lagern angeordnete Federorgane beaufschlagt sind. Auf diese Weise werden etwaige Verformungen der augenförmigen Lager kompensiert, ohne dass sie die Führung der Schiebereinheit entlang ihrer Führungsbahnen beeinträchtigen.The invention further provides that the holding means are provided with sliding rollers sliding on guide tracks of the slide unit parallel to the working plane of the slide lock, which are acted upon against the guide tracks by spring elements arranged in the bearings. In this way, any deformations of the eye-shaped bearings are compensated without affecting the guidance of the slide unit along its guideways.

Es ist im Sinne einer einfachen Konstruktion der Haltemittel zweckmässig, wenn diese ein in ihren Lagern geführtes bolzenförmiges Verbindungsglied und einen mit diesem vorzugsweise lösbar verbundenen Träger für mindestens eine Gleitrolle aufweisen.In terms of a simple construction of the holding means, it is expedient if they have a bolt-shaped connecting member guided in their bearings and a carrier for at least one sliding roller, preferably detachably connected to it.

Es ist auch konstruktiv und montagetechnisch zweckmässig, wenn die augenförmigen Lager als Lagerbüchsen ausgebildet sind und diese sie aufnehmenden Ansätze mit einem dem Büchsendurchmesser angepassten halbrunden Endteil, vorzugsweise in Gestalt einer den Ansatz stirnseitig abschliessenden Halbschale versehen sind.It is also expedient in terms of construction and assembly if the eye-shaped bearings are designed as bearing bushes and these attachments receiving them have a bushing diameter that is adapted to the bushing diameter semicircular end part, preferably in the form of a half-shell which closes off the approach at the end face.

Die Erfindung sieht auch vor, dass die Schiebereinheit am Gehäuseteil mittels einer Scharnierverbindung angelenkt ist, deren Scharnierflügel einerseits an der Schiebereinheit und andererseits direkt an der einen Längswandung des Gehäuseteils angebracht sind. Dadurch sind die Scharnierflügel am Gehäuseteil sicher befestigt.The invention also provides that the slide unit is hinged to the housing part by means of a hinge connection, the hinge wings of which are attached on the one hand to the slide unit and on the other hand directly to one longitudinal wall of the housing part. As a result, the hinge wings are securely attached to the housing part.

Die Erfindung sowie weitere Vorteile sind nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher erläutert. Es zeigt:

Fig. 1
einen erfindungsgemässen Schiebeverschluss, in der aufgeklappten Stellung und perspektivisch dargestellt; und
Fig. 2
den Schieberverschluss nach Fig. 1 im Schnitt und in der zugeklappten Stellung dargestellt;
Fig. 3
eine perspektivische Ansicht des Schiebeverschlusses nach Fig. 1 bei der erfindungsgemäss vom Gehäuseteil gelösten Schiebereinheit;
Fig. 4
eine Draufsicht eines Ansatzes beim Gehäuseteil des Schiebeverschlusses nach Fig. 1 bei fixiertem Haltemittel, und
Fig. 5
eine Draufsicht des Ansatzes bei gelöstem Haltemittel.
The invention and further advantages are explained in more detail below using an exemplary embodiment with reference to the drawing. It shows:
Fig. 1
a sliding lock according to the invention, shown in the unfolded position and in perspective; and
Fig. 2
the slide fastener Fig. 1 shown in section and in the closed position;
Fig. 3
a perspective view of the slide fastener according to Fig. 1 in the case of the slide unit detached from the housing part according to the invention;
Fig. 4
a plan view of an approach in the housing part of the slide lock according to Fig. 1 with fixed holding means, and
Fig. 5
a top view of the approach with released holding means.

Der Schiebeverschluss 10 gemäss Fig. 1 bzw. Fig. 2 eignet sich als Verschlussorgan bei einer nicht näher gezeigten Giesspfanne oder einem ähnlichen Metallschmelze enthaltenden Behälter, wie diese insbesondere bei Stranggiessanlagen von Stahl eingesetzt werden. Selbstverständlich eignet er sich auch als Verschlussorgan beispielsweise für Giessereien auch im Nichteisenmetallbereich.The slide lock 10 according to Fig. 1 or. Fig. 2 is suitable as a closure member in a pouring ladle (not shown in detail) or a similar container containing molten metal, such as are used in particular in continuous casting plants for steel. Of course it is also suitable as a locking device, for example for foundries in the non-ferrous metal sector.

Dieser Schiebeverschluss 10 besteht im Wesentlichen aus einem Gehäuseteil 1 und einer zu diesem längsverschiebbaren Schiebereinheit 2, die längsseitig am Gehäuseteil 1 mit einer Scharnierverbindung 3 angelenkt ist. Im Gehäuseteil 1 ist eine obere feuerfeste Bodenplatte 4 befestigt, an die im zugeklappten Zustand eine untere feuerfeste Schieberplatte 5 der Schiebereinheit 2 angepresst ist, wobei letztere von mehreren senkrecht zu ihr am Gehäuseteil 1 befestigten Haltemitteln 6a, 6b und 7a, 7b längsverschiebbar gehalten ist.This sliding closure 10 consists essentially of a housing part 1 and a sliding unit 2 which is longitudinally displaceable in relation to this and which is articulated on the longitudinal side of the housing part 1 with a hinge connection 3. In the housing part 1, an upper refractory base plate 4 is fastened, to which a lower refractory slide plate 5 of the slide unit 2 is pressed in the closed state, the latter being held in a longitudinally displaceable manner by several holding means 6a, 6b and 7a, 7b fastened perpendicular to it on the housing part 1.

Das normalerweise gegossene Gehäuseteil 1 weist in Längsrichtung relativ nahe bei den Platten 4, 5 verlaufende äussere Wandungen 8, 9 mit seitlichen Ansätzen 10a, 10b und 11a, 11b auf, die mit vorzugsweise augenförmigen Lagern 12 für die einzelnen Haltemittel 6a, 6b und 7a, 7b der Schiebereinheit 2 versehen sind.The normally cast housing part 1 has outer walls 8, 9 running in the longitudinal direction relatively close to the plates 4, 5 with lateral extensions 10a, 10b and 11a, 11b, which preferably have eye-shaped bearings 12 for the individual holding means 6a, 6b and 7a, 7b of the slide unit 2 are provided.

Diese seitlichen Wandungen 8, 9 des Gehäuseteils 1 sind jeweils mit einem Abstand von annähernd einem bis mehreren Zentimetern zu den Aussenseiten der Platten 4, 5 bemessen, damit dieser Gehäuseteil im Betriebszustand beim Giessen einen annähernd gleichmässige Temperaturverteilung aufweist.These side walls 8, 9 of the housing part 1 are each dimensioned at a distance of approximately one to several centimeters from the outer sides of the plates 4, 5 so that this housing part has an approximately uniform temperature distribution in the operating state during casting.

Die Haltemittel 6a, 6b und 7a, 7b sind ihrerseits parallel zur Arbeitsebene des Schiebeverschlusses 10 mit auf Führungsbahnen 13a, 13b der Schiebereinheit 2 gleitenden Gleitrollen 14 versehen, welche gegen die Führungsbahnen 13a, 13b durch in den Lagern 12 eingebaute Federorgane 15 beaufschlagt sind. Diese Führungsbahnen 13a, 13b sind ihrerseits auf herkömmliche Weise durch je eine Öffnung 34 für die Freigabe einer jeweiligen Gleitrolle 14 zweigeteilt und endseitig mit Rampen 33 versehen, um die Haltemittel und mit ihnen die Federorgane verspannen bzw. entspannen zu können, wie dies in der Druckschrift EP-A-1 119 428 im Detail erläutert ist.The holding means 6a, 6b and 7a, 7b are in turn provided parallel to the working plane of the sliding lock 10 with sliding rollers 14 sliding on guide tracks 13a, 13b of the slider unit 2, which against the guide tracks 13a, 13b by spring elements built into the bearings 12 15 are acted upon. These guideways 13a, 13b are in turn divided in the conventional manner by an opening 34 each for releasing a respective sliding roller 14 and provided at the end with ramps 33 in order to be able to tension or relax the holding means and with them the spring members, as described in the publication EP-A-1 119 428 is explained in detail.

Die Lager 12 der Haltemittel 6a, 6b, 7a, 7b sind als Lagerbüchsen ausgebildet, wobei die sie aufnehmenden Ansätze 10a, 10b; 11a, 11b mit einem den Büchsendurchmesser angepassten halbrunden Endteil in Gestalt einer den Ansatz stirnseitig abschliessenden Halbschale versehen sind.The bearings 12 of the holding means 6a, 6b, 7a, 7b are designed as bearing bushes, the lugs 10a, 10b; 11a, 11b are provided with a semicircular end part adapted to the bushing diameter in the form of a half-shell that closes off the neck at the end.

Wie aus Fig. 1 ersichtlich ist, weist das Gehäuseteil 1 beidseitig je zwei seitliche Ansätze 10a, 10b bzw. 11a, 11b auf, deren Lager 12 im Gehäuseteil 1 symmetrisch zur Ausgussöffnung 16 des Schiebeverschlusses 10 platziert sind. Diese Anordnung ermöglicht eine optimale Kraftübertragung von den Haltemitteln 6a, 6b; 7a, 7b auf die Schiebereinheit 2 und damit auf die im zugeklappten Zustand gegeneinander angepressten Platten 4, 5.How out Fig. 1 As can be seen, the housing part 1 has two lateral extensions 10a, 10b or 11a, 11b on both sides, the bearings 12 of which are placed in the housing part 1 symmetrically to the pouring opening 16 of the slide closure 10. This arrangement enables optimal power transmission from the holding means 6a, 6b; 7a, 7b onto the slide unit 2 and thus onto the plates 4, 5 which are pressed against one another in the closed state.

Die einzelnen Haltemittel 6a, 6b; 7a, 7b bestehen aus einem in den Lagern 12 geführten bolzenförmigen Verbindungsglied 17 und einem mit diesem zum Erleichtern der Montage lösbar verbundenen Träger 18 für die daran gelagerte Gleitrolle. Alternativ dazu kann der Träger 18 beidseitig mit auf eigenen Führungsbahnen entlanglaufenden Gleitrollen versehen sein. Statt Gleitrollen sind auch Gleitsteine und ähnliche Gleitelemente verwendbar.The individual holding means 6a, 6b; 7a, 7b consist of a bolt-shaped connecting member 17 guided in the bearings 12 and a carrier 18, detachably connected to it to facilitate assembly, for the sliding roller mounted thereon. As an alternative to this, the carrier 18 can be provided on both sides with sliding rollers running along their own guide tracks. Instead of sliding rollers, sliding blocks and similar sliding elements can also be used.

Erfindungsgemäss sind diese Haltemittel 6a, 6b; 7a, 7b derart einzeln am Gehäuseteil 1 lösbar befestigt, dass sie im verspannten Zustand des Schiebeverschlusses 10 annähernd in jeder Stellung der Schiebereinheit 2 von dem Gehäuseteil gelöst werden können. Dies ist insbesondere in einem Störungsfall von Bedeutung, wenn die Schiebereinheit primär bei einem Durchbruch wegen verschweisster Stahlschmelze nicht mehr bewegt werden kann.According to the invention, these holding means 6a, 6b; 7a, 7b individually detachably fastened to the housing part 1 in such a way that they can be released from the housing part in almost any position of the slide unit 2 in the clamped state of the slide lock 10. This is particularly important in the event of a malfunction, when the slide unit can no longer be moved primarily in the event of a breakthrough due to welded molten steel.

Fig. 3 zeigt die nach der Erfindung vom Gehäuseteil 1 gelöste Schiebereinheit 2. Es sind mit der Schiebereinheit die Lager 12 der Haltemittel 6a, 6b; 7a, 7b jeweils bajonettartig durch Verdrehen vom Gehäuseteil 1 senkrecht zu diesem entfernt. Die Lager 12 und mit ihnen die Haltemittel 6a, 6b; 7a, 7b sind jeweils um einen bestimmten Winkel verdreht, wobei damit auch die mit diesen verbundenen Gleitrollen 14 geschwenkt werden, welche an den Führungsbahnen 13a, 13b der Schiebereinheit 2 anliegen. Die Haltemittel 6a, 6b; 7a, 7b mit den Lagern 12 können anschliessend von der Schiebereinheit 2 weggenommen und je nachdem wieder im Gehäuseteil 1 befestigt werden. Fig. 3 shows the slide unit 2 released from the housing part 1 according to the invention. The bearings 12 of the holding means 6a, 6b; 7a, 7b are each removed in the manner of a bayonet by rotating the housing part 1 perpendicular to the latter. The bearings 12 and with them the holding means 6a, 6b; 7a, 7b are each rotated by a certain angle, with the sliding rollers 14 connected to them also being pivoted, which lie against the guide tracks 13a, 13b of the slide unit 2. The holding means 6a, 6b; 7a, 7b with the bearings 12 can then be removed from the slide unit 2 and, as the case may be, fastened again in the housing part 1.

Zweckmässigerweise sind die Lager 12 der Haltemittel 6a, 6b; 7a, 7b jeweils mit an ihrer Aussenseite gleichmässig über den Umfang achsparallel verlaufender Längsführungen 12' ausgebildet, welche jeweils wie ein Bajonett in korrespondierenden Nuten 10", 11" einer Öffnung 10', 11' im Ansatz 10a, 10b bzw. 11a, 11b des Gehäuseteils 1 einführbar und anschliessend durch ein Verdrehen und Fixieren mittels eines Arretiermittels 26 darin gesichert sind. Diese Öffnungen 10', 11' sind dabei mit einem zylindrischen Teil versehen, in welchem ein jeweiliges Lager 12 gedreht und positioniert werden kann.The bearings 12 of the holding means 6a, 6b; 7a, 7b each with longitudinal guides 12 'running uniformly over the circumference on their outer side, which are each like a bayonet in corresponding grooves 10 ", 11" of an opening 10', 11 'in the approach 10a, 10b and 11a, 11b of the Housing part 1 can be inserted and then secured therein by twisting and fixing by means of a locking means 26. These openings 10 ', 11' are here with a provided cylindrical part in which a respective bearing 12 can be rotated and positioned.

Fig. 4 zeigt den einen Ansatz 10a des Gehäuseteils 1 und das darin von dem Arretiermittel 26 fixierte Lager 12 eines Haltemittels. Das Lager 12 ist dabei in der jeweiligen Öffnung 10', 11' so verdreht, bis seine Längsführungen 12' über denjenigen der Öffnungen 10', 11' aufliegen. Fig. 4 shows the one extension 10a of the housing part 1 and the bearing 12 of a holding means fixed therein by the locking means 26. The bearing 12 is rotated in the respective opening 10 ', 11' until its longitudinal guides 12 'rest over those of the openings 10', 11 '.

Demgegenüber ist in Fig. 5 die Position des Lagers 12 bei entferntem Arretiermittel 26 und gedrehter Position in der Öffnung 10', 11' verdeutlicht, bei der das Lager 12 mit seinen Längsführungen 12' durch die Nuten 10" verschoben und vom Gehäuseteil 1 weggenommen werden können. Der Innenwandung der Öffnung 10', 11' sind jeweils korrespondierende Längsführungen 27 zu denjenigen des Lagers 12 zugeordnet, zwischen denen die Nuten 10" verlaufen.In contrast, in Fig. 5 the position of the bearing 12 with the locking means 26 removed and the rotated position in the opening 10 ', 11' illustrated, in which the bearing 12 with its longitudinal guides 12 'can be displaced through the grooves 10 "and removed from the housing part 1. The inner wall of the opening 10 ', 11' are each associated with corresponding longitudinal guides 27 to those of the bearing 12, between which the grooves 10 ″ run.

Zum Befestigen des Schiebeverschlusses an die Giesspfanne dienen nicht dargestellte Befestigungsschrauben, die in Ecklaschen 19 des Gehäuseteils 1 einschwenkbar und anschliessend gegen sie anziehbar sind.Fastening screws, not shown, which can be swiveled into corner tabs 19 of housing part 1 and then tightened against them, are used to fasten the sliding closure to the pouring ladle.

Die Betätigung der Schiebereinheit 2 erfolgt ihrerseits durch ein ebenfalls nicht veranschaulichtes Antriebsorgan in Gestalt eines Hydraulikzylinders, dessen Schubstange mit einer Kupplungsklaue 20 der Schiebereinheit verbindbar ist.The actuation of the slide unit 2 takes place in turn by a drive element, likewise not illustrated, in the form of a hydraulic cylinder, the push rod of which can be connected to a coupling claw 20 of the slide unit.

Um das Auf- und Zuklappen des Schiebeverschlusses zu ermöglichen, ist die Schiebereinheit 2 in an sich bekannter Weise am Gehäuseteil 1 mittels der Scharnierverbindung 3 angelenkt, wobei die Scharnierflügel 21, 22 einerseits an der Schiebereinheit 2 und andererseits direkt an der einen Längswandung 9 des Gehäuseteils 1 befestigt sind.In order to enable the sliding lock to be opened and closed, the slide unit 2 is articulated in a manner known per se on the housing part 1 by means of the hinge connection 3, the hinge wings 21, 22 are fastened on the one hand to the slide unit 2 and on the other hand directly to the one longitudinal wall 9 of the housing part 1.

Die erfindungsgemässe Konstruktion des Gehäuseteils 1 eignet sich auch für einen Schiebeverschluss, deren Haltemittel 7a, 7b; 8a, 8b anders als vorstehend beschrieben ausgebildet sind, soweit auch bei ihnen eine Lagerung der Haltemittel in den Ansätzen 10a, 10b; 11a 11b der Schiebereinheit 2 möglich ist.The construction according to the invention of the housing part 1 is also suitable for a sliding lock, the holding means 7a, 7b; 8a, 8b are designed differently than described above, insofar as they also have a storage of the holding means in the lugs 10a, 10b; 11a 11b of the slide unit 2 is possible.

Die Erfindung ist mit dem erläuterten Ausführungsbeispiel ausreichend dargetan. Sie könnte aber noch durch andere Varianten verdeutlicht sein. So könnte es sich auch um einen Dreiplatten-Schiebeverschluss handeln, bei dem zwischen Gehäuseteil und der Schiebereinheit eine Schieberplatte in einem zusätzlichen Rahmen in herkömmlicher Weise verschiebbar angeordnet wäre. Der Gehäuseteil wäre dann in gleicher Weise wie bei der Variante nach Fig. 1 mit den erfindungsgemässen Vorteilen ausgebildet, wobei dann die Schiebereinheit einzig zum automatischen Verspannen des Verschlusses verschiebbar geführt würde.The invention is sufficiently demonstrated with the illustrated embodiment. However, it could also be clarified by other variants. So it could also be a three-plate slide lock, in which a slide plate would be arranged in a conventional manner in an additional frame between the housing part and the slide unit. The housing part would then be in the same way as in the variant after Fig. 1 designed with the advantages according to the invention, the slide unit then being guided displaceably solely for the purpose of automatically tensioning the closure.

Die Haltemittel könnten anders als bajonettartig am Gehäuseteil lösbar befestigt sein, wie beispielsweise durch eine Art Schraubenverbindung oder eine Schnappkupplung oder dergleichen.The holding means could be detachably attached to the housing part in a manner other than bayonet-like, for example by a type of screw connection or a snap coupling or the like.

Claims (10)

  1. A slide closure for a container containing molten metal, that has a housing part (1) that can be fastened to the latter and a slider unit (2) that can be displaced longitudinally relative to it, into which a refractory plate (4 or 5) can be inserted, whereby the slider unit (2) being held by a number of holding means (6a, 6b; 7a, 7b) fastened to the housing part (1) perpendicular to the slider unit such that it can be displaced longitudinally, characterised in that
    the holding means (6a, 6b; 7a, 7b) are releaseably fastened individually to the housing part (1) such that in the braced state of the slide closure (10) they can be released from the housing part (1) in almost every position of the slider unit (2), where the holding means (6a, 6b; 7a, 7b) each comprise a bearing (12) that can be accommodated in the housing part (1), which bearing can be fastened in the latter by inserting and turning in the manner of a bayonet or, conversely, can be removed from the latter, whereby this insertion or removal of the bearings (12) into or from the housing part (1) taking place approximately perpendicular to the latter.
  2. The slide closure according to Claim 1, characterised in that
    longitudinal guides (12') are formed on the outsides of the bearings (12) of the holding means (6a, 6b; 7a, 7b), respectively distributed evenly around the circumference, which guides can be introduced like a bayonet into corresponding grooves (10", 11") of an opening (10', 11') in the housing part (1) and then being secured therein by turning and fixing by means of a locking means (26).
  3. The slide closure according to Claim 2, characterised in that
    the respective bearing (12), and with it the holding means (6a, 6b; 7a, 7b), can be turned about a specific angle, the associated slide roller (14) therefore also being turned with the latter, which slide roller rests against guide tracks (13a, 13b) of the slider unit (2) in the braced state.
  4. The slide closure according any of the preceding Claims 1 to 3, characterised in that
    the housing part (1) has walls (8, 9) running close to the plate (4, 5) in the longitudinal direction and with projections (10a, 10b) that protrude to the side, in which walls bearings (12) of the individual holding means (6a, 6b; 7a, 7b) can be accommodated.
  5. The slide closure according to Claim 4, characterised in that
    the housing part (1) has two lateral projections (10a, 10b or 11a, 11b) on each of the two sides, the bearings (12) of which are arranged symmetrically to the spout opening (16) of the slide closure in the housing part (1).
  6. The slide closure according to Claim 4 or 5, characterised in that
    the lateral walls (8, 9) of the housing part (1) are respectively designed to be a distance of approximately one to a number of centimetres from the outsides of the plates (4, 5).
  7. The slide closure according to any of the preceding Claims 4 to 6, characterised in that
    the holding means (6a, 6b; 7a, 7b) are provided with slide rollers (14) sliding on guide tracks (13a or 13b) of the slider unit (2) parallel to the working plane of the slide closure (10), which slide rollers are loaded against the guide tracks (13a, 13b) by spring components (15) disposed in the bearings (12).
  8. The slide closure according to Claim 7, characterised in that
    the holding means (6a, 6b; 7a, 7b) have a bolt-shaped connection element (17) guided in their bearings (12) and a support (18) preferably releaseably connected to the latter for at least one slide roller (14).
  9. The slide closure according to any of the preceding Claims 4 to 8, characterised in that
    the bearings (12) are in the form of bearing bushings and the projections (10a, 10b; 11a, 11b) accommodating them are provided with a semi-circular end part adapted to the end diameter of the bushing, preferably in the form of a half-shell concluding the projection on the face side.
  10. The slide closure according to any of the preceding Claims 5 to 9, characterised in that
    the slider unit (2) is attached to the housing part (1) by means of a hinge connection (3), the hinge leaves (21, 22) of which are fastened on the one hand to the slider unit (2) and on the other hand directly to the one longitudinal wall (9) of the housing part (1).
EP15804099.8A 2015-01-23 2015-11-27 Sliding closure for a container containing molten metal Active EP3247515B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15804099T PL3247515T3 (en) 2015-01-23 2015-11-27 Sliding closure for a container containing molten metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00091/15A CH710652B1 (en) 2015-01-23 2015-01-23 Sliding closure for a container containing molten metal.
PCT/EP2015/077972 WO2016116197A1 (en) 2015-01-23 2015-11-27 Sliding closure for a container containing molten metal

Publications (2)

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EP3247515A1 EP3247515A1 (en) 2017-11-29
EP3247515B1 true EP3247515B1 (en) 2021-03-31

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US (1) US10471505B2 (en)
EP (1) EP3247515B1 (en)
JP (1) JP6694437B2 (en)
KR (1) KR102469579B1 (en)
CN (1) CN107107182B (en)
AR (1) AR103502A1 (en)
BR (1) BR112017013250B1 (en)
CA (1) CA2970041C (en)
CH (1) CH710652B1 (en)
MX (1) MX2017009401A (en)
MY (1) MY190092A (en)
PL (1) PL3247515T3 (en)
RU (1) RU2709882C2 (en)
TW (1) TWI680816B (en)
UA (1) UA122487C2 (en)
WO (1) WO2016116197A1 (en)

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CH710652B1 (en) 2015-01-23 2019-06-28 Refractory Intellectual Property Gmbh & Co Kg Sliding closure for a container containing molten metal.
CH715297A2 (en) * 2018-09-04 2020-03-13 Refractory Intellectual Property Gmbh & Co Kg Procedure for the maintenance of a sliding closure on the pouring of a metallurgical vessel and a sliding closure.
EP3753650A1 (en) * 2019-06-21 2020-12-23 Vesuvius Group S.A Slide closure for vessel containing molten metal
JP2023109064A (en) * 2022-01-26 2023-08-07 黒崎播磨株式会社 Sliding nozzle device

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AR103502A1 (en) 2017-05-17
CH710652B1 (en) 2019-06-28
CH710652A2 (en) 2016-07-29
KR102469579B1 (en) 2022-11-22
CA2970041A1 (en) 2016-07-28
JP2018506432A (en) 2018-03-08
TWI680816B (en) 2020-01-01
BR112017013250A2 (en) 2018-02-27
CN107107182B (en) 2021-03-02
PL3247515T3 (en) 2021-11-29
RU2017126839A (en) 2019-02-25
CA2970041C (en) 2023-02-28
WO2016116197A1 (en) 2016-07-28
TW201634152A (en) 2016-10-01
RU2709882C2 (en) 2019-12-23
KR20170107036A (en) 2017-09-22
EP3247515A1 (en) 2017-11-29
MY190092A (en) 2022-03-26
JP6694437B2 (en) 2020-05-13
MX2017009401A (en) 2017-10-12
US10471505B2 (en) 2019-11-12
UA122487C2 (en) 2020-11-25
CN107107182A (en) 2017-08-29
US20180009028A1 (en) 2018-01-11
RU2017126839A3 (en) 2019-06-11
BR112017013250B1 (en) 2021-05-18

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