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EP2268432A1 - Closing plate and sliding closure on the spout of a receptacle for molten metal - Google Patents

Closing plate and sliding closure on the spout of a receptacle for molten metal

Info

Publication number
EP2268432A1
EP2268432A1 EP09731567A EP09731567A EP2268432A1 EP 2268432 A1 EP2268432 A1 EP 2268432A1 EP 09731567 A EP09731567 A EP 09731567A EP 09731567 A EP09731567 A EP 09731567A EP 2268432 A1 EP2268432 A1 EP 2268432A1
Authority
EP
European Patent Office
Prior art keywords
plate
refractory
closure
sliding
sliding surface
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
EP09731567A
Other languages
German (de)
French (fr)
Other versions
EP2268432B1 (en
Inventor
Benno Steiner
Werner Keller
Urs Truttmann
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 EP2268432A1 publication Critical patent/EP2268432A1/en
Application granted granted Critical
Publication of EP2268432B1 publication Critical patent/EP2268432B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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

Definitions

  • the invention relates to a closure plate for a sliding closure at the spout of a container for molten metal, in particular a converter, according to the preamble of claim 1 and a sliding closure according to claim 5.
  • Slide closures on the spout of containers for molten metal are known in various designs.
  • a sliding closure which is used in particular for opening and closing a converter spout opening, is disclosed, for example, in EP 0 819 488 B1. It comprises a housing frame in which a stationary refractory closure plate (a so-called bottom plate) and one of these opposite sliding, held in a slide unit refractory slide plate are arranged. The slide plate is sealingly pressed with its upper sliding surface to a lower sliding surface of the bottom plate.
  • the housing frame is detachably mounted on a container-fixed base plate, wherein the bottom plate is clamped on its upper sliding surface with a refractory spout head used in the base plate.
  • the refractory parts are exposed to heavy wear. It is therefore necessary to exchange them relatively frequently. For this, the housing frame must be detached from the base plate in each case.
  • the closure plates for a sliding closure are known to each include a surrounded by a metal jacket, elongated refractory plate, which may also be multi-part.
  • the present invention has for its object to provide a closure plate for a sliding closure on the spout of a container for molten metal, in particular a converter, which allows a particularly gentle clamping with another closure plate or with a refractory spout headboard. Furthermore, a suitable especially for converter sliding closure should be further improved.
  • the danger of damage to the end faces of the refractory parts to be clamped together when introducing the tension and / or during a relative adjustment of the mutually strained refractory parts can be considerably reduced.
  • FIG. 2 shows the closure plate according to FIG. 1 in plan view
  • Fig. 3 is a section along the line III-III in Fig. 2;
  • FIG. 4 shows a detail X from FIG. 3 on an enlarged scale
  • FIG. 5 shows a longitudinal section of an embodiment of a sliding closure when pivoting to the spout of a converter.
  • FIG. 6 shows the sliding closure according to FIG. 5 in cross-section, with a cassette containing two base plates in an initial position
  • Fig. 7 shows the sliding closure of Fig. 5 in cross section, with the cassette in an end position.
  • a closure plate 10 is shown for a sliding closure at the spout of a container for molten metal. It may, for example, be a so-called bottom plate of a sliding closure 1 shown in more detail in FIGS. 5 to 7 for a converter, as will be described in more detail below.
  • the closure plate 10 has an elongated shape and optionally an octagonal outer contour. It comprises a multi-part refractory plate 11 and a metal jacket 12 surrounding it.
  • the refractory plate 1 1 provided with a spout opening 13 has a lower sliding surface 14 and an upper sliding surface 15.
  • the refractory plate 1 1 is clamped on the one hand on the lower sliding surface 14 with a slide plate 20 of the sliding closure 1 and on the other hand via the upper sliding surface 15 with a lower sliding surface 21 'of a refractory container spout head part 21.
  • the refractory plate 1 1 according to the invention in a protruding from the metal jacket 12 area at least along the upper sliding surface 15 bounding side with the sliding surface 15 an angle ⁇ inclining bevel 26 along one of the two narrow sides 16, 17, wherein the angle ⁇ preferably between 10 ° and 15 °.
  • the refractory plate 11 in addition to the chamfer 26, there is in each case a chamfer 28, 29 in the sliding surface 14, which are assigned to the two longitudinal sides 18, 19 parallel to the longitudinal axis L.
  • the closure plate 10 according to the invention can be accommodated as a stationary base plate in a housing frame 30 of the sliding closure 1 according to FIG. 5, in which housing frame 30 a slide unit 31 with the slide plate 20 is displaceably arranged, the longitudinal axis L of the closure plate 10 in FIG the displacement direction of the slide closure 1 runs.
  • the housing frame 30 is removably mounted on a container-fixed base plate 32.
  • Suspension means are preferably provided for the pivotable arrangement of the housing frame 30 on the container-fixed base plate 32, wherein the pivot axis A extends transversely to the direction of displacement of the slide unit 31.
  • FIG. 5 shows in particular how the housing frame 30 is pivoted with the refractory parts mounted therein about the axis A and then fixed by means not shown fixing means on the base plate 32, wherein the refractory parts are clamped in the housing frame 30 existing spring organs.
  • the spring members are designed with such a spring characteristic that initially only very low contact forces in this first striking with the head part 21 bevel 26 of the refractory plate 11 comes into contact before the full spring force on the surface of the head part 21 adjacent plate 1 1 comes to effect.
  • the housing frame 30 contains a cassette 40 displaceable transversely to the direction of displacement of the slide unit 20 with at least two closure plates 10a, 10b serving as bottom plates, wherein the one closure plate 10a is displaced by moving the cassette 40 out of the operating position can be removed and replaced by the other closure plate 10b (Fig. 7) without the housing frame 30 must be dismantled.
  • the exact structure and operation of such a sliding closure can be found in the earlier mentioned Swiss patent application no. 00603/08 and is therefore not described in detail.
  • the refractory plates 11 of all the closure plates 10a, 10b are provided with bevels 28, 29 at least along the longitudinal sides 18, 19 with respect to the cassette displacement, in order to prevent mutual displacement of the full contact force. Clamped refractory parts to avoid damage to their sliding surfaces. This risk of abutment of the edges arises primarily due to the dimensional differences resulting thickness differences of the refractory plates and the head part 21.
  • Such a slide plate could also be formed on the side facing away from the sliding surface with a known spring and thus be provided only on one side with a sliding surface, be provided in the context of the invention, for example, on the one narrow side of the sliding surface such a chamfer could, so that if the slide plate when swiveling the slide unit by way of a flat contact by this bevel would not come into contact edgewise to the bottom plate.
  • the invention is sufficiently demonstrated with the illustrated embodiments. But you could still be executed by additional variants. So it may be in the surrounding the refractory plate 11 sheet metal coat 12 to a deep-drawn sheet, a bandage or act on a cassette frame or the like.
  • This chamfering according to the invention in the refractory plate could not be provided over the entire length, but only in a partial area in the case of a plate form in which the outer sides run obliquely to the longitudinal axis L of the plate or these outer sides are rounded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Clamps And Clips (AREA)
  • Building Environments (AREA)
  • Details Of Valves (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

A closing plate for a sliding closure on the spout of a receptacle for molten metal, especially of a converter, comprises an elongate refractory plate (11) and a sheet metal jacket (12) surrounding the same. The refractory plate (11) has a sliding surface (14, 16) which can be braced with a sliding surface of a refractory closure plate interacting therewith or with a sliding surface (21') of a refractory head part (21). The refractory plate (11) has a tapering section (26, 28, 29) which forms an angle (a) with the sliding surface (14, 15) on at least one side delimiting the sliding surface (14, 15), said tapering section being associated with a section of the refractory plate (11) that projects beyond the sheet metal jacket (12). The closing plate according to the invention allows the risk of damage to the front faces of the refractory parts to be braced with each other to be substantially reduced during bracing of the parts with each other and/or during a relative adjustment of the refractory parts that are braced with each other.

Description

Verschlussplatte sowie ein Schiebeverschluss am Ausguss eines Behälters für Metallschmelze Closure plate and a sliding closure on the spout of a container for molten metal

Die Erfindung betrifft eine Verschlussplatte für einen Schiebeverschluss am Ausguss eines Behälters für Metallschmelze, insbesondere eines Konverters, gemäss dem Oberbegriff des Anspruches 1 sowie einen Schiebeverschluss nach Anspruch 5. Schiebeverschlüsse am Ausguss von Behältern für Metallschmelze sind in verschiedensten Ausgestaltungen bekannt. Ein Schiebeverschluss, der insbesondere zum Öffnen und Schliessen einer Konverter-Ausgussöffnung verwendet wird, ist beispielsweise in der EP 0 819 488 B l offenbart. Er umfasst einen Gehäuserahmen, in welchem eine stationäre feuerfeste Verschlussplatte (eine sogenannte Bodenplatte) sowie eine dieser gegenüber verschiebbare, in einer Schiebereinheit gehaltene feuerfeste Schieberplatte angeordnet sind. Die Schieberplatte ist mit ihrer oberen Gleitfläche an eine untere Gleitfläche der Bodenplatte dichtend anpressbar. Der Gehäuserahmen ist an einer behälterfesten Grundplatte lösbar angebracht, wobei die Bodenplatte über ihre obere Gleitfläche mit einem in der Grundplatte eingesetzten feuerfesten Ausguss-Kopfteil verspannbar ist. Im Giessbetrieb sind die Feuerfestteile starkem Verschleiss ausgesetzt. Es ist daher erforderlich, sie relativ häufig auszutauschen. Dazu muss der Gehäuserahmen jeweils von der Grundplatte gelöst werden.The invention relates to a closure plate for a sliding closure at the spout of a container for molten metal, in particular a converter, according to the preamble of claim 1 and a sliding closure according to claim 5. Slide closures on the spout of containers for molten metal are known in various designs. A sliding closure, which is used in particular for opening and closing a converter spout opening, is disclosed, for example, in EP 0 819 488 B1. It comprises a housing frame in which a stationary refractory closure plate (a so-called bottom plate) and one of these opposite sliding, held in a slide unit refractory slide plate are arranged. The slide plate is sealingly pressed with its upper sliding surface to a lower sliding surface of the bottom plate. The housing frame is detachably mounted on a container-fixed base plate, wherein the bottom plate is clamped on its upper sliding surface with a refractory spout head used in the base plate. In the casting operation, the refractory parts are exposed to heavy wear. It is therefore necessary to exchange them relatively frequently. For this, the housing frame must be detached from the base plate in each case.

Da erfahrungsgemäss beim Einsatz des Schiebeverschlusses am Konverter- Ausguss insbesondere die Bodenplatte sehr schnell verschleisst, ist es aus einer früheren CH-Patentanmeldung Nr. 00603/08 bekannt, im Gehäuserahmen eine Kassette mit mindestens zwei Bodenplatten verschiebbar anzuordnen, wobei durch die Verschiebung eine verschlissene Bodenplatte aus der Betriebsstellung entfernt und durch eine andere Bodenplatte ersetzt werden kann, ohne dass der Gehäuserahmen von der Grundplatte demontiert werden muss. Dadurch ist es möglich, den Giessbetrieb länger aufrechtzuerhalten, bis auch der Austausch der übrigen Feuerfestteile fällig ist. Die Verschlussplatten für einen Schiebeverschluss umfassen bekanntlich jeweils eine von einem Blechmantel umgebene, längliche Feuerfestplatte, die auch mehrteilig sein kann.Experience has shown that when using the sliding closure on the converter spout, in particular, the bottom plate wears very quickly, it is known from an earlier Swiss patent application no. 00603/08 to arrange a cassette with at least two bottom plates slidably in the housing frame, wherein the displacement of a worn bottom plate removed from the operating position and can be replaced by another base plate without the housing frame must be removed from the base plate. This makes it possible to maintain the casting operation longer until the replacement of the other refractory parts is due. The closure plates for a sliding closure are known to each include a surrounded by a metal jacket, elongated refractory plate, which may also be multi-part.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Verschlussplatte für einen Schiebeverschluss am Ausguss eines Behälters für Metallschmelze, insbesondere eines Konverters, zu schaffen, die eine besonders schonende Verspannung mit einer anderen Verschlussplatte oder mit einem feuerfesten Ausguss-Kopfteil ermöglicht. Ferner soll ein insbesondere für Konverter geeigneter Schiebeverschluss weiter verbessert werden.The present invention has for its object to provide a closure plate for a sliding closure on the spout of a container for molten metal, in particular a converter, which allows a particularly gentle clamping with another closure plate or with a refractory spout headboard. Furthermore, a suitable especially for converter sliding closure should be further improved.

Diese Aufgabe wird erfindungsgemäss durch eine Verschlussplatte mit den Merkmalen des Anspruches 1 sowie durch einen Schiebeverschluss mit den Merkmalen des Anspruches 5 gelöst.This object is achieved according to the invention by a closure plate with the features of claim 1 and by a sliding closure with the features of claim 5.

Weitere bevorzugte Ausgestaltungen der erfindungsgemässen Verschlussplatte bilden den Gegenstand der abhängigen Ansprüche.Further preferred embodiments of the inventive closure plate form the subject of the dependent claims.

Mit der erfindungsgemässen Verschlussplatte kann die Beschädigungsgefahr an den miteinander zu verspannenden Stirnseiten der Feuerfestteile beim Einleiten der Verspannung und/oder während einer relativen Verstellung der miteinander verspannten Feuerfestteile erheblich reduziert werden.With the closure plate according to the invention, the danger of damage to the end faces of the refractory parts to be clamped together when introducing the tension and / or during a relative adjustment of the mutually strained refractory parts can be considerably reduced.

Die Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen: Fig. 1 ein Ausführungsbeispiel einer erfindungsgemässen Verschlussplatte im Längsschnitt;The invention will be explained in more detail with reference to the drawing. Show it: 1 shows an embodiment of an inventive closure plate in longitudinal section.

Fig. 2 die Verschlussplatte nach Fig. 1 in Draufsicht;FIG. 2 shows the closure plate according to FIG. 1 in plan view; FIG.

Fig. 3 einen Schnitt entlang der Linie III-III in Fig. 2;Fig. 3 is a section along the line III-III in Fig. 2;

Fig. 4 einen Detail X aus Fig. 3 in vergrössertem Massstab;4 shows a detail X from FIG. 3 on an enlarged scale; FIG.

Fig. 5 im Längsschnitt ein Ausführungsbeispiel eines Schiebeverschlusses beim Einschwenken an den Ausguss eines Konverters;5 shows a longitudinal section of an embodiment of a sliding closure when pivoting to the spout of a converter.

Fig. 6 den Schiebeverschluss nach Fig. 5 im Querschnitt, mit einer sich in einer Ausgangsstellung befindenden, zwei Bodenplatten enthaltenden Kassette; undFIG. 6 shows the sliding closure according to FIG. 5 in cross-section, with a cassette containing two base plates in an initial position; FIG. and

Fig. 7 den Schiebeverschluss nach Fig. 5 im Querschnitt, mit der Kassette in einer Endstellung.Fig. 7 shows the sliding closure of Fig. 5 in cross section, with the cassette in an end position.

In Fig. l bis Fig.4 ist eine Verschlussplatte 10 für einen Schiebeverschluss am Ausguss eines Behälters für Metallschmelze dargestellt. Es kann sich beispielsweise um eine sogenannte Bodenplatte eines in Fig. 5 bis 7 näher dargestellten Schiebeverschlusses 1 für einen Konverter handeln, wie weiter unten noch näher beschrieben wird. Die Verschlussplatte 10 weist eine längliche Form und gegebenenfalls eine achteckige Aussenkontur auf. Sie umfasst eine mehrteilige Feuerfestplatte 11 und einen diese umgebenden Blechmantel 12. Die mit einer Ausgussöffnung 13 versehene Feuerfestplatte 1 1 weist eine untere Gleitfläche 14 und eine obere Gleitfläche 15 auf. Die Feuerfestplatte 1 1 ist einerseits über die untere Gleitfläche 14 mit einer Schieberplatte 20 des Schiebeverschlusses 1 und anderseits über die obere Gleitfläche 15 mit einer unteren Gleitfläche 21 ' eines feuerfesten Behälterausguss-Kopfteiles 21 verspannbar. Die Feuerfestplatte 1 1 weist erfindungsgemäss in einem aus dem Blechmantel 12 hinausragenden Bereich zumindest entlang einer die obere Gleitfläche 15 begrenzenden Seite eine mit der Gleitfläche 15 einen Winkel α einschliessende Abschrägung 26 entlang einer der beiden Schmalseiten 16, 17 auf, wobei der Winkel α vorzugsweise zwischen 10° und 15° beträgt. Zusätzlich ist bei der Feuerfestplatte 1 1 nebst der Abschrägung 26 je eine Abschrägung 28, 29 bei der Gleitfläche 14 vorgesehen, welche den beiden zur Längsachse L parallelen Längsseiten 18, 19 zugeordnet sind.In Fig. L to Fig.4 a closure plate 10 is shown for a sliding closure at the spout of a container for molten metal. It may, for example, be a so-called bottom plate of a sliding closure 1 shown in more detail in FIGS. 5 to 7 for a converter, as will be described in more detail below. The closure plate 10 has an elongated shape and optionally an octagonal outer contour. It comprises a multi-part refractory plate 11 and a metal jacket 12 surrounding it. The refractory plate 1 1 provided with a spout opening 13 has a lower sliding surface 14 and an upper sliding surface 15. The refractory plate 1 1 is clamped on the one hand on the lower sliding surface 14 with a slide plate 20 of the sliding closure 1 and on the other hand via the upper sliding surface 15 with a lower sliding surface 21 'of a refractory container spout head part 21. The refractory plate 1 1 according to the invention in a protruding from the metal jacket 12 area at least along the upper sliding surface 15 bounding side with the sliding surface 15 an angle α inclining bevel 26 along one of the two narrow sides 16, 17, wherein the angle α preferably between 10 ° and 15 °. In addition, in the case of the refractory plate 11, in addition to the chamfer 26, there is in each case a chamfer 28, 29 in the sliding surface 14, which are assigned to the two longitudinal sides 18, 19 parallel to the longitudinal axis L.

Wie bereits erwähnt, kann die erfindungsgemässe Verschlussplatte 10 als eine stationäre Bodenplatte in einem Gehäuserahmen 30 des Schiebeverschlusses 1 nach Fig. 5 untergebracht werden, in welchem Gehäuserahmen 30 eine Schiebereinheit 31 mit der Schieberplatte 20 verschiebbar angeordnet ist, wobei die Längsachse L der Verschlussplatte 10 in der Verschieberichtung des Schieberverschlusses 1 verläuft. Der Gehäuserahmen 30 ist an einer behälterfesten Grundplatte 32 wegnehmbar angebracht. Es sind vorzugsweise Aufhängemittel zur schwenkbaren Anordnung des Gehäuserahmens 30 an der behälterfesten Grundplatte 32 vorgesehen, wobei die Schwenkachse A quer zur Verschieberichtung der Schiebereinheit 31 verläuft.As already mentioned, the closure plate 10 according to the invention can be accommodated as a stationary base plate in a housing frame 30 of the sliding closure 1 according to FIG. 5, in which housing frame 30 a slide unit 31 with the slide plate 20 is displaceably arranged, the longitudinal axis L of the closure plate 10 in FIG the displacement direction of the slide closure 1 runs. The housing frame 30 is removably mounted on a container-fixed base plate 32. Suspension means are preferably provided for the pivotable arrangement of the housing frame 30 on the container-fixed base plate 32, wherein the pivot axis A extends transversely to the direction of displacement of the slide unit 31.

In Fig. 5 ist insbesondere veranschaulicht, wie der Gehäuserahmen 30 mit den darin montierten Feuerfestteilen um die Achse A eingeschwenkt und danach mittels nicht näher dargestellten Fixiermittel an der Grundplatte 32 fixiert wird, wobei die Feuerfestteile über im Gehäuserahmen 30 vorhandene Federorgane verspannt werden. Mit der erfindungsgemässen Abschrägung 26 der zur Schwenkachse A näher liegende Schmalseite 16 der Feuerfestplatte 1 1 wird weitgehend vermieden, dass bei Berührung der Bodenplatte mit der unteren Gleitfläche 21 ' des in der behälterfesten Grundplatte 32 eingebauten feuerfesten Aus- guss-Kopfteiles 21 zur Beschädigung dieser normalerweise aus keramischem Material bestehenden Feuerfestteile kommt. Als zusätzliche Sicherheit sind die Federorgane mit einer solchen Federkennlinie ausgelegt, dass anfänglich nur sehr geringe Anpresskräfte bei dieser als erste mit dem Kopfteil 21 anschlagenden Abschrägung 26 der Feuerfestplatte 11 in Berührung gelangt, bevor die volle Federkraft auf die flächig am Kopfteil 21 anliegenden Platte 1 1 zur Wirkung kommt.In Fig. 5 shows in particular how the housing frame 30 is pivoted with the refractory parts mounted therein about the axis A and then fixed by means not shown fixing means on the base plate 32, wherein the refractory parts are clamped in the housing frame 30 existing spring organs. With the chamfer 26 according to the invention of the closer to the pivot axis A narrow side 16 of the refractory plate 1 1 is largely avoided that when touching the bottom plate with the lower sliding surface 21 'of the container-mounted base plate 32 built refractory pouring header 21 to damage this normally made of ceramic material existing refractory parts. As additional security, the spring members are designed with such a spring characteristic that initially only very low contact forces in this first striking with the head part 21 bevel 26 of the refractory plate 11 comes into contact before the full spring force on the surface of the head part 21 adjacent plate 1 1 comes to effect.

Bei dem Schiebeverschluss 1 nach Fig. 6 und Fig. 7 enthält der Gehäuserahmen 30 eine quer zur Verschieberichtung der Schiebereinheit 20 verschiebbare Kassette 40 mit mindestens zwei als Bodenplatten dienenden Verschlussplatten 10a, 10b, wobei die eine Verschlussplatte 10a durch Verschieben der Kassette 40 aus der Betriebsstellung nach Fig. 6 entfernt und durch die andere Verschlussplatte 10b ersetzt werden kann (Fig. 7), ohne dass der Gehäuserahmen 30 demontiert werden muss. Der genaue Aufbau und Funktionsweise eines solchen Schiebeverschlusses ist der bereits erwähnten früheren CH-Patentanmeldung Nr. 00603/08 zu entnehmen und wird daher nicht im Detail beschrieben.In the sliding closure 1 according to FIGS. 6 and 7, the housing frame 30 contains a cassette 40 displaceable transversely to the direction of displacement of the slide unit 20 with at least two closure plates 10a, 10b serving as bottom plates, wherein the one closure plate 10a is displaced by moving the cassette 40 out of the operating position can be removed and replaced by the other closure plate 10b (Fig. 7) without the housing frame 30 must be dismantled. The exact structure and operation of such a sliding closure can be found in the earlier mentioned Swiss patent application no. 00603/08 and is therefore not described in detail.

Erfindungsgemäss werden die Feuerfestplatten 1 1 aller Verschlussplatten 10a, 10b zumindest entlang der bezüglich der Kassettenverschiebung vorderen Längsseiten 18, 19 mit Abschrägungen 28, 29 versehen, um bei der gegenseitigen Verschiebung der mit voller Anpresskraft miteinander ver- spannten Feuerfestteile Beschädigungen bei ihren Gleitflächen zu vermeiden. Diese Gefahr eines Anstossens der Kanten entsteht primär aufgrund der durch Abmessungstoleranzen entstehenden Dickenunterschiede der feuerfesten Platten und dem Kopfteil 21. Vorzugsweise werden beide Längsseiten 18, 19 der jeweiligen Feuerfestplatte 1 1 mit Abschrägungen 28, 29 versehen, insbesondere wenn zwecks Vereinfachung des Austauschvorganges eine Hin- und Zurück- Verschiebung der Kassette 40 vorgesehen ist.According to the invention, the refractory plates 11 of all the closure plates 10a, 10b are provided with bevels 28, 29 at least along the longitudinal sides 18, 19 with respect to the cassette displacement, in order to prevent mutual displacement of the full contact force. Clamped refractory parts to avoid damage to their sliding surfaces. This risk of abutment of the edges arises primarily due to the dimensional differences resulting thickness differences of the refractory plates and the head part 21. Preferably, both longitudinal sides 18, 19 of the respective refractory plate 1 1 provided with bevels 28, 29, especially if for the purpose of simplification of the exchange process a Hin- and zurück- displacement of the cassette 40 is provided.

Die als stationäre Bodenplatte dienende Verschlussplatte 10 könnte durchaus auch auf der der Schieberplatte 20 zugeordneten Gleitfläche 14 auf den Schmalseiten 16, 17 Abschrägungen aufweisen oder die Schieberplatte 20 selber könnte mit derartigen Abschrägungen versehen sein.Serving as a stationary bottom plate closure plate 10 could well on the slide plate 20 associated sliding surface 14 on the narrow sides 16, 17 bevels or the slide plate 20 itself could be provided with such bevels.

Eine solche Schieberplatte könnte auch auf der der Gleitfläche abgekehrten Seite mit einer an sich bekannten Feder ausgebildet und somit nur auf der einen Seite mit einer Gleitfläche versehen sein, bei der im Rahmen der Erfindung zum Beispiel auf der einen Schmalseite der Gleitfläche eine solche Abschrägung vorgesehen sein könnte, damit wenn die Schieberplatte beim Zuschwenken der Schiebereinheit im Wege einer flächigen Berührung durch diese Abschrägung nicht kantig an die Bodenplatte in Berührung gelangen würde.Such a slide plate could also be formed on the side facing away from the sliding surface with a known spring and thus be provided only on one side with a sliding surface, be provided in the context of the invention, for example, on the one narrow side of the sliding surface such a chamfer could, so that if the slide plate when swiveling the slide unit by way of a flat contact by this bevel would not come into contact edgewise to the bottom plate.

Die Erfindung ist mit den erläuterten Ausführungsbeispielen ausreichend dargetan. Sie könnte aber noch durch zusätzliche Varianten ausgeführt sein. So kann es sich bei dem die Feuerfestplatte 11 umgebenden Blech- mantel 12 um ein tiefgezogenes Blech, um eine Bandage oder auch um einen Kassettenrahmen oder ähnlichem handeln.The invention is sufficiently demonstrated with the illustrated embodiments. But you could still be executed by additional variants. So it may be in the surrounding the refractory plate 11 sheet metal coat 12 to a deep-drawn sheet, a bandage or act on a cassette frame or the like.

Diese erfindungsgemässe Abschrägung bei der Feuerfestplatte könnte sich bei einer Plattenform, bei der die Aussenseiten schräg zur Längsachse L der Platte verlaufen oder diese Aussenseiten gerundet sind, nicht über die gesamte Länge, sondern nur in einem Teilbereich versehen sein. This chamfering according to the invention in the refractory plate could not be provided over the entire length, but only in a partial area in the case of a plate form in which the outer sides run obliquely to the longitudinal axis L of the plate or these outer sides are rounded.

Claims

PATENTANSPRÜCHE 1. Verschlussplatte für einen Schiebeverschluss am Ausguss eines Behälters für Metallschmelze, insbesondere eines Konverters, mit einer länglichen Feuerfestplatte (1 1) und einem diese umgebenden Blechmantel (12), wobei die Feuerfestplatte (1 1) über eine Gleitfläche (14, 15) mit einer solchen einer anderen feuerfesten Verschlussplatte oder mit einer Gleitfläche (21 ') eines feuerfesten Kopfteils (21) verspannbar ist, dadurch gekennzeichnet, dass die Feuerfestplatte (1 1) zumindest entlang einer die Gleitfläche (14, 15) begrenzenden Seite (16, 17, 18, 19) eine mit der Gleitfläche (14, 15) einen Winkel (α) einschliessende Abschrägung (26, 28, 29) aufweist, die einem aus dem Blechmantel (12) hinausragenden Bereich der Feuerfestplatte (1 1) zugeordnet ist. 1. closure plate for a sliding closure at the spout of a container for molten metal, in particular a converter, with an elongated refractory plate (1 1) and a surrounding metal jacket (12), wherein the refractory plate (1 1) via a sliding surface (14, 15) one of such another refractory closure plate or with a sliding surface (21 ') of a refractory head part (21) is clamped, characterized in that the refractory plate (1 1) at least along a sliding surface (14, 15) limiting side (16, 17, 18, 19) has an inclination (26, 28, 29) which encloses an angle (α) with the sliding surface (14, 15) and which is assigned to a region of the refractory plate (11) protruding from the metal jacket (12). 2. Verschlussplatte nach Anspruch 1, dadurch gekennzeichnet, dass der Winkel (α) dieser Abschrägung (26, 28, 29) zwischen 10° und 15° beträgt.2. Closure plate according to claim 1, characterized in that the angle (α) of this chamfer (26, 28, 29) is between 10 ° and 15 °. 3. Verschlussplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abschrägung (26) einer quer zur Platten-Längsachse (L) gerichteten Schmalseite (16) der Feuerfestplatte (1 1) zugeordnet ist.3. Closure plate according to claim 1 or 2, characterized in that the bevel (26) of a transversely to the plate longitudinal axis (L) directed narrow side (16) of the refractory plate (1 1) is associated. 4. Verschlussplatte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Abschrägung (28, 29) mindestens einer, vorzugsweise beiden parallel zur Platten-Längsachse (L) verlaufenden Längseiten (18, 19) der Feuerfestplatte (1 1) zugeordnet ist.4. Closure plate according to one of claims 1 to 3, characterized in that the bevel (28, 29) at least one, preferably two parallel to the plate longitudinal axis (L) extending longitudinal sides (18, 19) of the refractory plate (1 1) is assigned , 5. Schiebeverschluss am Ausguss eines Behälters für Metallschmelze, insbesondere eines Konverters, mit einer Verschlussplatte (10) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Verschlussplatte (10) als eine stationäre Bodenplatte in einem an einer behälterfesten Grundplatte (32) anbringbaren Gehäuserahmen (30) untergebracht ist, in welchem eine mit einer Schieberplatte (20) versehene Schiebereinheit (31) verschiebbar angeordnet ist, wobei die Platten- Längsachse (L) in Verschieberichtung der Schiebereinheit (31) verläuft, wobei die Verschlussplatte (10) bzw. ihre mit der Abschrägung (26, 28, 29) versehene Feuerfestplatte (1 1) über ihre Gleitfläche (15) mit einer Gleitfläche (21 ') eines in der Grundplatte (32) eingesetzten feuerfesten Ausguss-Kopfteiles (21) verspannbar ist. 5. sliding closure on the spout of a container for molten metal, in particular a converter, with a closure plate (10) according to one of claims 1 to 4, characterized in that the closure plate (10) as a stationary base plate in a container-fixed base plate (32) attachable housing frame (30) is housed, in which a slider plate (20) provided with a slide unit (31) is slidably disposed, wherein the plate longitudinal axis (L) in the direction of displacement of the slide unit (31), wherein the closure plate (10) or their refractory plate (11) provided with the bevel (26, 28, 29) can be braced via its sliding surface (15) with a sliding surface (21 ') of a refractory spout head part (21) inserted in the base plate (32). 6. Schiebeverschluss nach Anspruch 5, dadurch gekennzeichnet, dass Aufhängemittel zur schwenkbaren Anordnung des Gehäuserahmens (30) an der behälterfesten Grundplatte (32) und Fixiermittel zur lösbaren Befestigung desselben vorhanden sind, wobei die Schwenkachse (A) quer zur Verschieberichtung der Schiebereinheit (31) verläuft, wobei die zur Schwenkachse (A) näher liegende Schmalseite (16) der Feuerfestplatte (1 1) mit der Abschrägung (26) versehen ist.6. sliding closure according to claim 5, characterized in that suspension means for the pivotable arrangement of the housing frame (30) on the container-fixed base plate (32) and fixing means for releasably securing thereof are provided, wherein the pivot axis (A) transverse to the direction of displacement of the slide unit (31) runs, with the pivot axis (A) closer narrow side (16) of the refractory plate (1 1) with the bevel (26) is provided. 7. Schiebeverschluss nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass im Gehäuserahmen (30) eine Kassette (40) verschiebbar angeordnet ist, die neben der einen Verschlussplatte (10a) noch mindestens eine weitere, identisch ausgebildete Verschlussplatte (10b) enthält, wobei die weitere Verschlussplatte (10b) durch Verschiebung der Kassette (40) in eine Betriebsstellung bringbar und somit die eine Kassette (10a) ersetzbar ist.7. sliding closure according to claim 5 or 6, characterized in that in the housing frame (30) a cassette (40) is slidably disposed, in addition to the one closure plate (10 a) at least one further, identically formed closure plate (10 b), wherein the further closure plate (10b) by displacement of the cassette (40) can be brought into an operating position and thus the one cassette (10a) is replaceable. 8. Schiebeverschluss nach Anspruch 7, dadurch gekennzeichnet, dass die Verschieberichtung der Kassette (40) quer zur Verschieberichtung der Schiebereinheit (31) verläuft.8. sliding closure according to claim 7, characterized in that the direction of displacement of the cassette (40) transversely to the direction of displacement of the slide unit (31). 9. Schiebeverschluss nach Anspruch 8, dadurch gekennzeichnet, dass die Feuerfestplatten (1 1) aller Verschlussplatten (10a, 10b) zumindest entlang der bezüglich der Kassettenverschiebung vorderen Längsseiten (18, 19) Abschrägungen (28, 29) aufweisen. 9. sliding closure according to claim 8, characterized in that the refractory plates (1 1) of all closure plates (10 a, 10 b) at least along the front of the cassette with respect to the longitudinal sides (18, 19) bevels (28, 29). 10. Schiebeverschluss nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass die Kassette (40) zwischen ihrer Ausgangsstellung und ihrer Endstellung hin und zurück verschiebbar ist, wobei beide Längsseiten (18, 19) der jeweiligen Feuerfestplatte (11) Abschrägungen (28, 29) aufweisen. 10. Sliding closure according to one of claims 7 to 9, characterized in that the cassette (40) is displaceable back and forth between its initial position and its end position, wherein both longitudinal sides (18, 19) of the respective refractory plate (11) bevels (28, 29).
EP09731567.5A 2008-04-17 2009-04-17 Closing plate and sliding closure on the spout of a receptacle for molten metal Active EP2268432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6032008 2008-04-17
PCT/EP2009/002815 WO2009127420A1 (en) 2008-04-17 2009-04-17 Closing plate and sliding closure on the spout of a receptacle for molten metal

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EP2268432A1 true EP2268432A1 (en) 2011-01-05
EP2268432B1 EP2268432B1 (en) 2016-04-13

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US (1) US8740024B2 (en)
EP (1) EP2268432B1 (en)
JP (1) JP5426658B2 (en)
KR (1) KR20100132041A (en)
CN (1) CN102006952B (en)
BR (1) BRPI0910467B1 (en)
CA (1) CA2721597A1 (en)
ES (1) ES2573906T3 (en)
HU (1) HUE028952T2 (en)
PL (1) PL2268432T3 (en)
RU (1) RU2490091C2 (en)
WO (1) WO2009127420A1 (en)
ZA (1) ZA201007258B (en)

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Also Published As

Publication number Publication date
HUE028952T2 (en) 2017-01-30
US8740024B2 (en) 2014-06-03
RU2490091C2 (en) 2013-08-20
CN102006952A (en) 2011-04-06
WO2009127420A1 (en) 2009-10-22
RU2010146653A (en) 2012-05-27
BRPI0910467B1 (en) 2017-08-01
KR20100132041A (en) 2010-12-16
PL2268432T3 (en) 2017-01-31
CN102006952B (en) 2016-03-23
JP2011516278A (en) 2011-05-26
US20110127302A1 (en) 2011-06-02
ES2573906T3 (en) 2016-06-13
CA2721597A1 (en) 2009-10-22
EP2268432B1 (en) 2016-04-13
ZA201007258B (en) 2011-06-29
BRPI0910467A2 (en) 2016-07-26
JP5426658B2 (en) 2014-02-26

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