EP2268433B1 - Sliding closure for a receptacle containing molten metal - Google Patents

Sliding closure for a receptacle containing molten metal Download PDF

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Publication number
EP2268433B1
EP2268433B1 EP09732322.4A EP09732322A EP2268433B1 EP 2268433 B1 EP2268433 B1 EP 2268433B1 EP 09732322 A EP09732322 A EP 09732322A EP 2268433 B1 EP2268433 B1 EP 2268433B1
Authority
EP
European Patent Office
Prior art keywords
base plate
sliding closure
case
housing frame
closure according
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.)
Active
Application number
EP09732322.4A
Other languages
German (de)
French (fr)
Other versions
EP2268433A1 (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
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Filing date
Publication date
Application filed by Stopinc AG filed Critical Stopinc AG
Priority to PL09732322T priority Critical patent/PL2268433T3/en
Publication of EP2268433A1 publication Critical patent/EP2268433A1/en
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Publication of EP2268433B1 publication Critical patent/EP2268433B1/en
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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
    • 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
    • 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
    • B22D41/38—Means for operating the sliding gate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/721—Contents-dispensing means consisting of mobile elements forming part of the containers or attached to the containers
    • B65D5/723—Sliding elements for covering and uncovering discharge openings of containers, e.g. slide-closures

Definitions

  • the invention relates to a sliding closure for a container containing molten metal, with a attachable to a spout of the container housing frame for receiving a refractory base plate and a slide unit with a sealable to the bottom plate by means of spring members refractory slide plate, wherein the slide unit by means of a drive member movable back and forth is.
  • a sliding closure of this type is in the document EP 0 819 488 B1 described. It is preferably used to open and close the spout opening of converters. In the foundry, its refractories are strong Wear exposed. It is therefore necessary to exchange them relatively frequently. The replacement is feasible only after removal of the sliding closure. Thus, the productivity of the plant is compromised due to the resulting downtime. This is especially true when using the slide fastener in converters, because experience has shown that the bottom plate wears quickly and you must therefore replace them relatively often, at least more often than the other refractory parts.
  • the invention has for its object to avoid these disadvantages and to provide a sliding closure of the type mentioned, which allows a quick and convenient replacement of particularly vulnerable refractory parts, without the need for interrupting the casting operation.
  • the cassette is provided with a second bottom plate arranged next to the bottom plate and in the housing frame transversely to the direction of movement of the slide unit from an initial position in which the bottom plate is in the operating position to an end position in which the second bottom plate assumes the operating position, is displaceable.
  • the invention provides that the cassette with the bottom plate and the second bottom plate between its initial position and its end position is displaced back and forth.
  • the displacement path is either on one side to the left or right of the slider unit, or arranged on both sides left and right of the slider unit.
  • the cassette is displaceable in a two-part support plate of the housing frame, which is provided with stepped guide profiles for guiding the cassette in the direction of displacement. In this way, the exact positioning of the second base plate in the operating position is ensured when changing the plate.
  • the invention provides that the cassette is displaceable by a transverse drive attached to the container with a push rod pushing the cassette.
  • the push rod can be coupled to the cassette, which is then displaced back and forth by the transverse drive.
  • the transverse drive is designed in a structurally simple variant as a manual drive, which is provided with an actuating lever for the push rod.
  • transverse drive is designed as a hydraulic linear drive
  • the push rod is actuated by a hydraulic cylinder. This embodiment provides a more convenient handling.
  • the transverse drive is firmly mounted on the base plate, so that it remains fixed when dismantling the sliding closure on the container.
  • the housing frame of the slide fastener suspension and fixing means for releasably securing the housing frame to the base plate of the container.
  • the drive member for the slider unit is attached to the base plate and the slider unit can be coupled to the drive member by means of a releasable coupling.
  • the cassette is formed with two closely juxtaposed enclosures for play-free receiving octagonal bottom and second bottom plate, wherein the longitudinal edges of the cassette are provided with a stepped guide profile.
  • Such a cassette can also be retrofitted without much effort in existing sliding closures.
  • the sliding closure 1 according to the FIGS. 1 to 9 is arranged on the spout of a converter, of which only one sliding shutter 1 bearing base plate 2 is visible in the figures.
  • the sliding closure 1 has a housing frame 3 with a cassette 4, in which a refractory base plate 5 and a likewise refractory second base plate 6 are inserted.
  • a slide unit 7 is further arranged with a refractory slide plate 8 and an adjoining refractory spout 9.
  • the slider unit 7 is between the open position according to Fig. 4 and the closing position according to Fig. 6 slidable on lateral slide rails 10, which are held in the housing frame 3 and acted upon by spring members 11.
  • the slide unit 7 is actuated by a coupling rod coupled to it 12, which in turn is connectable by a releasable coupling 13 with a cylinder piston drive, not shown.
  • a stop flange 15 is provided on the base plate 2, which cooperates with annular surfaces 14 of the push rod 12.
  • the housing frame 3 with the cassette 4 and the slide unit 7 is frontally suspended from the base plate 2 by means of pins 16, which protrude into holders 17 of the base plate.
  • fastening elements 18 are provided in the form of threaded bolts in this on the opposite side, which can be pivoted into grooves 19 of two lateral flanges 20 of the housing frame 3. The latter is clamped against the base plate 2 with nuts screwed over the flanges 20 onto the threaded bolts.
  • a disc-shaped refractory head portion 21 is provided in continuation of the spout, not shown, of the converter.
  • the illustrated braced state of the sliding closure 1 is a transversely through the slide unit 7 and the superimposed one of the spring members 11 Slide and bottom plates 8 and 5 produced to the head part 21 extending power flow, which ensures that between the plates 8, 5 and the head part 21 during casting no molten steel can flow out.
  • the spout 9 is in turn pressed against the slide plate 8 by a spring-loaded support ring 22 sealingly.
  • the cassette 4 with the bottom plate 5 and the second bottom plate 6 is formed by a rectangular steel plate which is displaceable in a two-part support plate 23, 24 of the housing frame 3 transversely to the direction of displacement of the slide unit 7.
  • the cassette 4 has at its longitudinal edges stepped guide profiles which cooperate with correspondingly formed guide profiles 25 of the two-part support plate 23, 24. As a result, the cassette 4 is securely guided in the support plate 23, 24 in the direction of displacement.
  • the stepped formation of the profiles causes the cassette to fall out of the body frame.
  • the cassette 4 has two closely juxtaposed enclosures 26, in which the bottom plate 5 and the second bottom plate 6 are inserted without play.
  • the enclosures 26 are formed in accordance with the outer contour of the plates 5 and 6 octagonal. This ensures an immovable positioning of both plates.
  • the bezels 26 have a stepped profile that matches the outer contour of the plates 5 and 6 and, in turn, prevents the plates from falling out of the housing frame.
  • the cassette 4 can between the in Fig. 7 shown starting position, in which the bottom plate 5 is in the operating position, and a in Fig. 8 shown position in which the second base plate 6 assumes the operating position, are moved.
  • a transverse drive is provided.
  • This one is in a first embodiment variant as a manual drive 27 and in a second variant as a hydraulic cylinder-piston drive 28 is formed.
  • the transverse drive 27 is mounted on the base plate 2 and provided with a push rod 29 or 30, which is effective on the cassette 4 at the level of the through hole of the bottom plates 5 and 6.
  • this respective transverse drive 27 or 28 could also be brought into position independently of the base plate 2, in order to then perform a displacement of the cassette with the bottom plates can.
  • the push rod 29 is driven by a force acting on a pin 31 of the push rod actuating lever 33 which is mounted in a fixed to the base plate 2 box 32 and laterally protrudes from the box to allow manual operation.
  • the push rod 30 is guided in a holder 34 which has a flange 36 to which the hydraulic cylinder 35 of the hydraulic transverse drive is attached.
  • the respective push rod 29 or 30 is not coupled to the cassette 4, so that they can move the cassette in only one direction.
  • the sliding closure 1 allows the replacement of the base plate 5 after reaching its maximum permissible wear, without that it is necessary to interrupt the casting operation.
  • the cassette 4 with the aid of the transverse drive 27 and 28 transversely to the direction of movement of the slide unit 7 so far moved until the worn bottom plate 5, the in FIG. 7 has cleared operating position and the second bottom plate 6 occupies it. Since in this case the plate exchange takes place while maintaining the force flow generated by the spring members 11, it is ensured that the sliding closure continues to seal properly both during the plate change and thereafter.
  • the plate change is carried out without having to reduce the slide fastener, it is at any time possible with the sliding closure according to the invention to replace the base plate quickly and with simple handling.
  • This is advantageous in casting operation, especially in converters, because experience shows that the bottom plate wears out faster than the other refractory parts of the device. This makes it possible to maintain the casting operation longer until the replacement of the other refractory parts is due.
  • the sliding closure 1 is removed in a known manner by the supporting base plate 2 of the container.
  • the fixing means 18 are released, which are effective on the flanges 20 of the housing frame 3.
  • the force acting on the refractory parts clamping force of the spring members 11 is reduced.
  • the pins 16 are removed from the bearing blocks 17, and the sliding closure 1 is transported by means of a manipulator, not shown, to a station in which the replacement of the worn refractory parts including the bottom and second bottom plate takes place.
  • the cassette 4 is easily removed from the housing frame 3, to easily get to the underlying refractory parts.
  • the housing frame 3 is pivoted away from the base plate 2 together with the base plates, the slide plate and the spout located therein. It can then, for example, the refractory parts removed from this housing frame and replaced. It is desirable to replace with each change of refractory parts and the remaining in the base plate 2 refractory head part 21 so that it is ensured in a subsequent displacement of the bottom plates that between them and the head part, the tightness is properly guaranteed.
  • Fig. 10 illustrates how the housing frame 3 is mounted to the base plate 2 with the refractory parts mounted therein by this housing frame 3 is pivoted about the axis A formed by the pin 16 and thus fixed by the fastening elements 18 on this base plate 2.
  • the spring elements 11 in the housing frame By the spring elements 11 in the housing frame, the refractory parts, as explained above, clamped for the intended seal against each other.
  • spring members 11 are provided in the invention with such a spring characteristic that in the Einschwenkposition of the housing frame 3, as shown, in which the bottom plate 5 with its one end edge 5 'with the lower end face 21' of the head part 21 comes into contact, very low contact forces act, thus damaging these normally made of ceramic material refractory parts should be prevented. If the bottom plate 5 rests flat against this end face 21 ', there is still a linear movement of the housing frame until it is present on the base plate 2 of the converter, then the full spring force of the spring members 11 acts.
  • the sliding closure 1 described is equipped with a single transverse drive 27 or 28.
  • the cassette according to the invention with the associated transverse drive can also be retrofitted into existing sliding closure devices of the type mentioned at the outset without great expense.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Lock And Its Accessories (AREA)
  • Sliding Valves (AREA)
  • Details Of Valves (AREA)

Description

Die Erfindung betrifft einen Schiebeverschluss für einen Metallschmelze enthaltenden Behälter, mit einem an einem Ausguss des Behälters anbringbaren Gehäuserahmen zur Aufnahme einer feuerfesten Bodenplatte sowie einer Schiebereinheit mit einer an die Bodenplatte mittels Federorganen abdichtend anpressbaren feuerfesten Schieberplatte, wobei die Schiebereinheit mittels eines Antriebsorgans hin und her bewegbar ist.The invention relates to a sliding closure for a container containing molten metal, with a attachable to a spout of the container housing frame for receiving a refractory base plate and a slide unit with a sealable to the bottom plate by means of spring members refractory slide plate, wherein the slide unit by means of a drive member movable back and forth is.

Ein Schiebeverschluss dieser Art ist in der Druckschrift EP 0 819 488 B1 beschrieben. Er wird vorzugsweise zum Öffnen und Schliessen der Ausgussöffnung von Konvertern eingesetzt. Im Giessbetrieb sind seine Feuerfestteile starkem Verschleiss ausgesetzt. Es ist daher erforderlich, sie relativ häufig auszutauschen. Der Austausch ist aber nur nach Abbau des Schiebeverschlusses durchführbar. Somit ist die Produktivität der Anlage infolge der sich daraus ergebenden Stillstandzeiten beeinträchtigt. Das gilt insbesondere beim Einsatz des Schiebeverschlusses in Konvertern, weil dort erfahrungsgemäss die Bodenplatte schnell verschleisst und man sie daher verhältnismässig oft, jedenfalls häufiger als die übrigen Feuerfestteile austauschen muss.A sliding closure of this type is in the document EP 0 819 488 B1 described. It is preferably used to open and close the spout opening of converters. In the foundry, its refractories are strong Wear exposed. It is therefore necessary to exchange them relatively frequently. The replacement is feasible only after removal of the sliding closure. Thus, the productivity of the plant is compromised due to the resulting downtime. This is especially true when using the slide fastener in converters, because experience has shown that the bottom plate wears quickly and you must therefore replace them relatively often, at least more often than the other refractory parts.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu vermeiden und einen Schiebeverschluss der eingangs genannten Art zu schaffen, der einen raschen und bequemen Austausch der besonders verschleissanfälligen Feuerfestteile ermöglicht, ohne dass dafür erforderlich ist, den Giessbetrieb zu unterbrechen.The invention has for its object to avoid these disadvantages and to provide a sliding closure of the type mentioned, which allows a quick and convenient replacement of particularly vulnerable refractory parts, without the need for interrupting the casting operation.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Kassette mit einer neben der Bodenplatte angeordneten zweiten Bodenplatte versehen ist und im Gehäuserahmen quer zur Bewegungsrichtung der Schiebereinheit von einer Ausgangsstellung, in welcher die Bodenplatte sich in Betriebsstellung befindet, zu einer Endstellung, in welcher die zweite Bodenplatte die Betriebsstellung einnimmt, verschiebbar ist.This object is achieved according to the invention in that the cassette is provided with a second bottom plate arranged next to the bottom plate and in the housing frame transversely to the direction of movement of the slide unit from an initial position in which the bottom plate is in the operating position to an end position in which the second bottom plate assumes the operating position, is displaceable.

Auf diese Weise ist es möglich, durch Verschieben der Kassette die verschlissene Bodenplatte aus der Betriebsstellung zu entfernen und diese mit der zweiten Bodenplatte zu belegen, ohne dass man dafür den Schiebeverschluss abnehmen und somit den Giessbetrieb abbrechen muss. Dadurch werden die Stillstandzeiten verkürzt, und die Wirtschaftlichkeit der Anlage wird erhöht.In this way it is possible to remove by moving the cassette, the worn bottom plate from the operating position and to occupy this with the second bottom plate, without having to remove the sliding closure and thus must stop the casting operation. This shortens downtime and increases plant efficiency.

Um den Austauschvorgang zu vereinfachen, sieht die Erfindung vor, dass die Kassette mit der Bodenplatte und der zweiten Bodenplatte zwischen ihrer Ausgangsstellung und ihrer Endstellung hin und zurück verschiebbar ist. Dabei ist die Verschiebestrecke entweder einseitig links oder rechts von der Schiebereinheit, oder beidseitig links und rechts von der Schiebereinheit angeordnet.In order to simplify the exchange process, the invention provides that the cassette with the bottom plate and the second bottom plate between its initial position and its end position is displaced back and forth. In this case, the displacement path is either on one side to the left or right of the slider unit, or arranged on both sides left and right of the slider unit.

Zur sicheren Positionierung und Fixierung der Platten in der sie tragenden Kassette weist diese erfindungsgemäss Einfassungen mit abgestuftem Profil auf, in welchen die Bodenplatte und die zweite Bodenplatte spielfrei eingesetzt sind.For secure positioning and fixation of the plates in the cassette carrying them according to the invention has graduated with graduated profile, in which the bottom plate and the second bottom plate are used without play.

Zweckmässigerweise ist die Kassette in einer zweiteiligen Tragplatte des Gehäuserahmens verschiebbar, die mit abgestuften Führungsprofilen zum Führen der Kassette in Verschieberichtung versehen ist. Auf diese Weise ist beim Plattenwechsel die genaue Positionierung der zweiten Bodenplatte in Betriebsstellung sichergestellt.Conveniently, the cassette is displaceable in a two-part support plate of the housing frame, which is provided with stepped guide profiles for guiding the cassette in the direction of displacement. In this way, the exact positioning of the second base plate in the operating position is ensured when changing the plate.

Zur Erleichterung des Wechselvorgangs sieht die Erfindung vor, dass die Kassette durch einen am Behälter befestigten Querantrieb mit einer die Kassette anschiebenden Schubstange verschiebbar ist. Vorteilhafterweise ist die Schubstange an die Kassette koppelbar, wobei diese dann durch den Querantrieb hin und zurück verschiebbar ist.To facilitate the change process, the invention provides that the cassette is displaceable by a transverse drive attached to the container with a push rod pushing the cassette. Advantageously, the push rod can be coupled to the cassette, which is then displaced back and forth by the transverse drive.

Es ist im Sinne einer leichten Verschiebbarkeit der Kassette von Vorteil, wenn die Schubstange des Querantriebes auf die Kassette in Höhe der Durchgangsöffnung der Bodenplatte bzw. der zweiten Bodenplatte einwirkt.It is in terms of a slight displaceability of the cassette advantageous if the push rod of the transverse drive acts on the cassette at the level of the passage opening of the bottom plate and the second bottom plate.

Der Querantrieb ist in einer konstruktiv einfachen Variante als manueller Antrieb ausgebildet, der mit einem Betätigungshebel für die Schubstange versehen ist.The transverse drive is designed in a structurally simple variant as a manual drive, which is provided with an actuating lever for the push rod.

In einer zweiten Variante ist der Querantrieb als hydraulischer Linearantrieb ausgebildet, dessen Schubstange mit einem Hydraulikzylinder betätigt wird. Diese Ausführungsform bietet eine bequemere Handhabung.In a second variant of the transverse drive is designed as a hydraulic linear drive, the push rod is actuated by a hydraulic cylinder. This embodiment provides a more convenient handling.

Bei beiden Varianten ist der Querantrieb an der Grundplatte fest montiert, so dass er beim Abbau des Schiebeverschlusses am Behälter fixiert zurückbleibt.In both variants, the transverse drive is firmly mounted on the base plate, so that it remains fixed when dismantling the sliding closure on the container.

Erfindungsgemäss hat der Gehäuserahmen des Schiebeverschlusses Aufhängungs- und Fixiermittel zur lösbaren Befestigung des Gehäuserahmens an die Grundplatte des Behälters. Dadurch kann der Schiebeverschluss auf einfache Art und Weise vom Behälter weggenommen bzw. an diesen fixiert werden, wobei die Fixierung gleichzeitig die Dichtigkeit der Einrichtung sicherstellt.According to the invention, the housing frame of the slide fastener suspension and fixing means for releasably securing the housing frame to the base plate of the container. As a result, the sliding closure can be easily removed from the container or fixed to it, the fixation at the same time ensuring the tightness of the device.

Um den An- und Abbau des Schiebeverschlusses zu erleichtern, ist es von Vorteil, wenn das Antriebsorgan für die Schiebereinheit an der Grundplatte befestigt ist und die Schiebereinheit an das Antriebsorgan mittels einer lösbaren Kupplung koppelbar ist.In order to facilitate the attachment and removal of the sliding closure, it is advantageous if the drive member for the slider unit is attached to the base plate and the slider unit can be coupled to the drive member by means of a releasable coupling.

Erfindungsgemäss ist die Kassette mit zwei eng nebeneinanderliegenden Einfassungen zur spielfreien Aufnahme achteckiger Boden- und zweite Bodenplatte ausgebildet, wobei die Längsränder der Kassette mit einem abgestuften Führungsprofil versehen sind. Eine solche Kassette kann auch nachträglich ohne grossen Aufwand in vorhandene Schiebeverschlüsse eingebaut werden.According to the invention, the cassette is formed with two closely juxtaposed enclosures for play-free receiving octagonal bottom and second bottom plate, wherein the longitudinal edges of the cassette are provided with a stepped guide profile. Such a cassette can also be retrofitted without much effort in existing sliding closures.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher beschrieben. Es zeigen:

Fig. 1
einen erfindungsgemässen Schiebeverschluss, in der Draufsicht dargestellt,
Fig. 2
den Schiebeverschluss aus Fig. 1, verkleinert und perspektivisch dargestellt,
Fig. 3
einen Schnitt durch den Gehäuserahmen entlang der Linie III-III in Fig. 1,
Fig. 4
einen Schnitt durch den Schiebeverschluss entlang der Linie IV-IV in Fig. 1, in der Öffnungsstellung dargestellt,
Fig. 5
einen Schnitt durch den Schiebeverschluss entlang der Linie V-V in Fig. 1,
Fig. 6
den Schnitt gemäss Fig. 4, in der Schliessstellung dargestellt,
Fig. 7
einen Schnitt durch den Schiebeverschluss entlang der Linie VII-VII in Fig. 1, in der Ausgangsstellung der Kassette dargestellt,
Fig. 8
den Schnitt gemäss Fig. 7, in der Endstellung der Kassette dargestellt,
Fig. 9
einen Schnitt durch den hydraulischen Linearantrieb der Kassette entlang der Linie IX-IX in Fig. 1, und
Fig. 10
einen Längsschnitt des Schiebeverschlusses beim Einschwenken an einen Konverter,
Fig. 11
Kraft-/Weg-Diagramm der Federorgane im Schiebeverschluss zu dessen Verspannung.
The invention will be described below with reference to an embodiment with reference to the drawings. Show it:
Fig. 1
a sliding closure according to the invention, shown in plan view,
Fig. 2
the sliding closure off Fig. 1 , reduced and shown in perspective,
Fig. 3
a section through the housing frame along the line III-III in Fig. 1 .
Fig. 4
a section through the sliding closure along the line IV-IV in Fig. 1 , shown in the open position,
Fig. 5
a section through the sliding closure along the line VV in Fig. 1 .
Fig. 6
the cut according to Fig. 4 , shown in the closed position,
Fig. 7
a section through the sliding closure along the line VII-VII in Fig. 1 , shown in the initial position of the cassette,
Fig. 8
the cut according to Fig. 7 , shown in the end position of the cassette,
Fig. 9
a section through the hydraulic linear drive of the cassette along the line IX-IX in Fig. 1 , and
Fig. 10
a longitudinal section of the sliding closure when swung to a converter,
Fig. 11
Force / displacement diagram of the spring elements in the slide fastener for its tension.

Der Schiebeverschluss 1 gemäss den Figuren 1 bis 9 ist am Ausguss eines Konverters angeordnet, von dem nur eine den Schiebeverschluss 1 tragende Grundplatte 2 in den Figuren sichtbar ist.The sliding closure 1 according to the FIGS. 1 to 9 is arranged on the spout of a converter, of which only one sliding shutter 1 bearing base plate 2 is visible in the figures.

Der Schiebeverschluss 1 hat einen Gehäuserahmen 3 mit einer Kassette 4, in welcher eine feuerfeste Bodenplatte 5 und eine ebenfalls feuerfeste zweite Bodenplatte 6 eingelegt sind. Im Gehäuserahmen 3 ist ferner eine Schiebereinheit 7 mit einer feuerfesten Schieberplatte 8 und einer sich daran anschliessenden feuerfesten Ausgusshülse 9 angeordnet.The sliding closure 1 has a housing frame 3 with a cassette 4, in which a refractory base plate 5 and a likewise refractory second base plate 6 are inserted. In the housing frame 3, a slide unit 7 is further arranged with a refractory slide plate 8 and an adjoining refractory spout 9.

Die Schiebereinheit 7 ist zwischen der Öffnungsstellung gemäss Fig. 4 und der Schliessstellung gemäss Fig. 6 auf seitlichen Gleitschienen 10 verschiebbar, die im Gehäuserahmen 3 gehalten und mit Federorganen 11 beaufschlagt sind. Die Schiebereinheit 7 wird durch eine an ihr angekoppelte Schubstange 12 betätigt, die ihrerseits durch eine lösbare Kupplung 13 mit einem nicht dargestellten Zylinderkolbenantrieb verbindbar ist. Zur Hubbegrenzung ist an der Grundplatte 2 ein Anschlagflansch 15 vorgesehen, der mit Ringflächen 14 der Schubstange 12 zusammenwirkt.The slider unit 7 is between the open position according to Fig. 4 and the closing position according to Fig. 6 slidable on lateral slide rails 10, which are held in the housing frame 3 and acted upon by spring members 11. The slide unit 7 is actuated by a coupling rod coupled to it 12, which in turn is connectable by a releasable coupling 13 with a cylinder piston drive, not shown. For Hubbegrenzung a stop flange 15 is provided on the base plate 2, which cooperates with annular surfaces 14 of the push rod 12.

Der Gehäuserahmen 3 mit der Kassette 4 und der Schiebereinheit 7 ist stirnseitig an der Grundplatte 2 mittels Zapfen 16 aufgehängt, die in Halterungen 17 der Grundplatte hineinragen. Zum Fixieren des Gehäuserahmens 3 an die Grundplatte sind in dieser auf der gegenüberliegenden Seite Befestigungselemente 18 in Gestalt von Gewindebolzen vorgesehen, die in Nuten 19 zweier seitlichen Flansche 20 des Gehäuserahmens 3 einschwenkbar sind. Letzterer wird gegen die Grundplatte 2 mit über den Flanschen 20 auf die Gewindebolzen aufgeschraubten Muttern festgespannt.The housing frame 3 with the cassette 4 and the slide unit 7 is frontally suspended from the base plate 2 by means of pins 16, which protrude into holders 17 of the base plate. For fixing the housing frame 3 to the base plate fastening elements 18 are provided in the form of threaded bolts in this on the opposite side, which can be pivoted into grooves 19 of two lateral flanges 20 of the housing frame 3. The latter is clamped against the base plate 2 with nuts screwed over the flanges 20 onto the threaded bolts.

In der Grundplatte 2 ist ein scheibenförmig ausgebildeter feuerfester Kopfteil 21 in Fortsetzung des nicht dargestellten Ausgusses des Konverters vorgesehen. Im gezeigten verspannten Zustand des Schiebeverschlusses 1 wird von den Federorganen 11 ein sich quer durch die Schiebereinheit 7 und die übereinanderliegenden Schieber- und Bodenplatten 8 bzw. 5 bis zum Kopfteil 21 erstreckender Kraftfluss erzeugt, der sicherstellt, dass zwischen den Platten 8, 5 und dem Kopfteil 21 beim Giessvorgang keine Stahlschmelze ausfliessen kann. Die Ausgusshülse 9 ist ihrerseits gegen die Schieberplatte 8 durch einen federbelasteten Tragring 22 abdichtend angepresst.In the base plate 2, a disc-shaped refractory head portion 21 is provided in continuation of the spout, not shown, of the converter. In the illustrated braced state of the sliding closure 1 is a transversely through the slide unit 7 and the superimposed one of the spring members 11 Slide and bottom plates 8 and 5 produced to the head part 21 extending power flow, which ensures that between the plates 8, 5 and the head part 21 during casting no molten steel can flow out. The spout 9 is in turn pressed against the slide plate 8 by a spring-loaded support ring 22 sealingly.

Die Kassette 4 mit der Bodenplatte 5 und der zweiten Bodenplatte 6 ist durch eine rechteckige Stahlplatte gebildet, die in einer zweiteiligen Tragplatte 23, 24 des Gehäuserahmens 3 quer zur Verschieberichtung der Schiebereinheit 7 verschiebbar ist. Die Kassette 4 weist an ihren Längsrändern abgestufte Führungsprofile auf, die mit entsprechend ausgebildeten Führungsprofilen 25 der zweiteiligen Tragplatte 23, 24 zusammenwirken. Dadurch ist die Kassette 4 in der Tragplatte 23, 24 in Verschieberichtung sicher geführt. Ausserdem bewirkt die abgestufte Ausbildung der Profile, dass die Kassette nicht aus dem Gehäuserahmen herausfällt.The cassette 4 with the bottom plate 5 and the second bottom plate 6 is formed by a rectangular steel plate which is displaceable in a two-part support plate 23, 24 of the housing frame 3 transversely to the direction of displacement of the slide unit 7. The cassette 4 has at its longitudinal edges stepped guide profiles which cooperate with correspondingly formed guide profiles 25 of the two-part support plate 23, 24. As a result, the cassette 4 is securely guided in the support plate 23, 24 in the direction of displacement. In addition, the stepped formation of the profiles causes the cassette to fall out of the body frame.

Die Kassette 4 weist zwei eng nebeneinanderliegende Einfassungen 26 auf, in welchen die Bodenplatte 5 und die zweite Bodenplatte 6 spielfrei eingesetzt sind. Die Einfassungen 26 sind entsprechend der Aussenkontur der Platten 5 und 6 achteckig ausgebildet. Dadurch ist eine unverrückbare Positionierung beider Platten sichergestellt. Die Einfassungen 26 haben ein abgestuftes Profil, das der Aussenkontur der Platten 5 und 6 angepasst ist und seinerseits verhindert, dass die Platten aus dem Gehäuserahmen herausfallen.The cassette 4 has two closely juxtaposed enclosures 26, in which the bottom plate 5 and the second bottom plate 6 are inserted without play. The enclosures 26 are formed in accordance with the outer contour of the plates 5 and 6 octagonal. This ensures an immovable positioning of both plates. The bezels 26 have a stepped profile that matches the outer contour of the plates 5 and 6 and, in turn, prevents the plates from falling out of the housing frame.

Die Kassette 4 kann zwischen der in Fig. 7 gezeigten Ausgangsstellung, in welcher die Bodenplatte 5 sich in Betriebsstellung befindet, und einer in Fig. 8 gezeigten Position, in welcher die zweite Bodenplatte 6 die Betriebstellung einnimmt, verschoben werden. Hierfür ist ein Querantrieb vorgesehen. Dieser ist in einer ersten Ausführungsvariante als manueller Antrieb 27 und in einer zweiten Variante als hydraulischer Zylinder-Kolbenantrieb 28 ausgebildet. Der Querantrieb 27 ist an der Grundplatte 2 montiert und mit einer Schubstange 29 bzw. 30 versehen, die auf die Kassette 4 in Höhe der Durchgangsbohrung der Bodenplatten 5 und 6 wirksam ist. Dieser jeweilige Querantrieb 27 bzw. 28 könnte aber auch unabhängig von der Grundplatte 2 in Position gebracht werden, um dann ein Verschieben der Kassette mit den Bodenplatten ausführen zu können.The cassette 4 can between the in Fig. 7 shown starting position, in which the bottom plate 5 is in the operating position, and a in Fig. 8 shown position in which the second base plate 6 assumes the operating position, are moved. For this purpose, a transverse drive is provided. This one is in a first embodiment variant as a manual drive 27 and in a second variant as a hydraulic cylinder-piston drive 28 is formed. The transverse drive 27 is mounted on the base plate 2 and provided with a push rod 29 or 30, which is effective on the cassette 4 at the level of the through hole of the bottom plates 5 and 6. However, this respective transverse drive 27 or 28 could also be brought into position independently of the base plate 2, in order to then perform a displacement of the cassette with the bottom plates can.

Beim manuellen Querantrieb 27 wird die Schubstange 29 durch einen auf einen Zapfen 31 der Schubstange wirkenden Betätigungshebel 33 angetrieben, der in einem an der Grundplatte 2 befestigten Kasten 32 gelagert ist und seitlich aus dem Kasten herausragt, um die manuelle Betätigung zu ermöglichen.In the manual transverse drive 27, the push rod 29 is driven by a force acting on a pin 31 of the push rod actuating lever 33 which is mounted in a fixed to the base plate 2 box 32 and laterally protrudes from the box to allow manual operation.

Beim hydraulischen Querantrieb 28 ist die Schubstange 30 in einer Halterung 34 geführt, die einen Flansch 36 aufweist, an dem der Hydraulikzylinder 35 des hydraulischen Querantriebs befestigt ist.In the hydraulic transverse drive 28, the push rod 30 is guided in a holder 34 which has a flange 36 to which the hydraulic cylinder 35 of the hydraulic transverse drive is attached.

Bei beiden Varianten des Antriebes ist die jeweilige Schubstange 29 bzw. 30 nicht an die Kassette 4 angekoppelt, so dass sie die Kassette in nur einer Richtung verschieben kann. Es ist aber im Rahmen der Erfindung ohne weiteres möglich, die Schubstange 29 bzw. 30 mit der Kassette 4 mittels einer lösbaren Kupplung zu verbinden, so dass bei geschlossener Kupplung die Kassette 4 in beiden Richtungen durch den Querantrieb 27 bzw. 28 verschiebbar ist, während man bei geöffneter Kupplung den Schiebeverschluss 1 losgelöst von dem an der Grundplatte 2 befestigten Querantrieb abbauen kann.In both variants of the drive, the respective push rod 29 or 30 is not coupled to the cassette 4, so that they can move the cassette in only one direction. However, it is within the scope of the invention readily possible to connect the push rod 29 or 30 with the cassette 4 by means of a releasable coupling, so that when the clutch is closed, the cassette 4 is displaceable in both directions by the transverse drive 27 and 28, while you can dismantle the sliding closure 1 detached from the attached to the base plate 2 transverse drive with the clutch open.

Der erfindungsgemässe Schiebeverschluss 1 ermöglicht den Austausch der Bodenplatte 5 nach Erreichen ihres maximal zulässigen Verschleisses, ohne dass dafür erforderlich ist, den Giessbetrieb zu unterbrechen. Hierfür wird die Kassette 4 mit Hilfe des Querantriebes 27 bzw. 28 quer zur Bewegungsrichtung der Schiebereinheit 7 soweit verschoben, bis die verschlissene Bodenplatte 5 die in Figur 7 gezeigte Betriebsstellung geräumt hat und die zweite Bodenplatte 6 sie einnimmt. Da hierbei der Plattenaustausch unter Aufrechterhaltung des von den Federorganen 11 erzeugten Kraftflusses stattfindet, ist sichergestellt, dass der Schiebeverschluss sowohl während des Plattenwechsels als auch danach weiterhin einwandfrei dichtet.The sliding closure 1 according to the invention allows the replacement of the base plate 5 after reaching its maximum permissible wear, without that it is necessary to interrupt the casting operation. For this purpose, the cassette 4 with the aid of the transverse drive 27 and 28 transversely to the direction of movement of the slide unit 7 so far moved until the worn bottom plate 5, the in FIG. 7 has cleared operating position and the second bottom plate 6 occupies it. Since in this case the plate exchange takes place while maintaining the force flow generated by the spring members 11, it is ensured that the sliding closure continues to seal properly both during the plate change and thereafter.

Da der Plattenwechsel durchgeführt wird, ohne dass man dafür den Schiebeverschluss abbauen muss, ist es beim erfindungsgemässen Schiebeverschluss jederzeit möglich, die Bodenplatte schnell und bei einfacher Handhabung auszutauschen. Dies ist im Giessbetrieb besonders bei Konvertern vorteilhaft, weil bei ihnen erfahrungsgemäss die Bodenplatte schneller verschleisst als die übrigen Feuerfestteile der Einrichtung. Dadurch ist es möglich, den Giessbetrieb länger aufrechtzuerhalten, bis auch der Austausch der übrigen Feuerfestteile fällig ist.Since the plate change is carried out without having to reduce the slide fastener, it is at any time possible with the sliding closure according to the invention to replace the base plate quickly and with simple handling. This is advantageous in casting operation, especially in converters, because experience shows that the bottom plate wears out faster than the other refractory parts of the device. This makes it possible to maintain the casting operation longer until the replacement of the other refractory parts is due.

Zum Auswechseln dieser Teile wird der Schiebeverschluss 1 in bekannter Art und Weise von der ihn tragenden Grundplatte 2 des Behälters weggenommen. Hierfür werden zunächst die Fixiermittel 18 gelöst, die auf die Flansche 20 des Gehäuserahmens 3 wirksam sind. Dadurch wird die auf die Feuerfestteile wirkende Spannkraft der Federorgane 11 abgebaut. Anschliessend werden die Zapfen 16 von den Lagerböcken 17 herausgenommen, und der Schiebeverschluss 1 wird mittels eines nicht dargestellten Manipulators zu einer Station transportiert, in welcher der Austausch der verschlissenen Feuerfestteile einschliesslich der Boden- und zweiten Bodenplatte stattfindet. Bei dieser Operation ist die Kassette 4 mühelos aus dem Gehäuserahmen 3 wegnehmbar, um leicht zu den darunterliegenden Feuerfestteilen zu gelangen.To replace these parts, the sliding closure 1 is removed in a known manner by the supporting base plate 2 of the container. For this purpose, first the fixing means 18 are released, which are effective on the flanges 20 of the housing frame 3. As a result, the force acting on the refractory parts clamping force of the spring members 11 is reduced. Subsequently, the pins 16 are removed from the bearing blocks 17, and the sliding closure 1 is transported by means of a manipulator, not shown, to a station in which the replacement of the worn refractory parts including the bottom and second bottom plate takes place. In this operation the cassette 4 is easily removed from the housing frame 3, to easily get to the underlying refractory parts.

Im Zuge eines An- bzw. Abbaus des Schiebeverschlusses vom Konverter wird der Gehäuserahmen 3 zusammen mit den in diesem befindlichen Bodenplatten, der Schieberplatte sowie der Ausgusshülse von der Grundplatte 2 weggeschwenkt. Es können dann beispielsweise die Feuerfestteile aus diesem Gehäuserahmen entfernt und ersetzt werden. Es ist angestrebt, mit jedem Wechsel dieser Feuerfestteile auch den in der Grundplatte 2 verbleibenden feuerfesten Kopfteil 21 auszuwechseln, so dass bei einem nachfolgenden Verschieben der Bodenplatten gewährleistet ist, dass zwischen diesen und dem Kopfteil die Dichtheit einwandfrei gewährleistet ist.In the course of a connection or dismantling of the slide fastener from the converter, the housing frame 3 is pivoted away from the base plate 2 together with the base plates, the slide plate and the spout located therein. It can then, for example, the refractory parts removed from this housing frame and replaced. It is desirable to replace with each change of refractory parts and the remaining in the base plate 2 refractory head part 21 so that it is ensured in a subsequent displacement of the bottom plates that between them and the head part, the tightness is properly guaranteed.

Vor dem Einschwenken des Gehäuserahmens 3 ist auf die darin angeordneten Feuerfestteile durch eine in der Schiebereinheit 7 angeordnete und die Ausgusshülse 9 umgebenden Druckfeder 9' ein solcher Anpressdruck erzeugt, dass die Feuerfestteile leicht gegeneinander zusammengepresst sind und damit nicht lose bzw. nicht beweglich im Gehäuserahmen sind.Prior to pivoting of the housing frame 3 is on the arranged therein refractory parts by a arranged in the slide unit 7 and the spout 9 surrounding compression spring 9 'generates such a contact pressure that the refractory parts are slightly compressed against each other and thus are not loose or not movable in the housing frame ,

In Fig. 10 ist veranschaulicht, wie der Gehäuserahmen 3 mit den in diesem montierten Feuerfestteilen an die Grundplatte 2 montiert wird, indem dieser Gehäuserahmen 3 um die von den Zapfen 16 gebildeten Achse A eingeschwenkt und folglich durch die Befestigungselemente 18 an dieser Grundplatte 2 fixiert wird. Durch die Federelemente 11 im Gehäuserahmen werden die Feuerfestteile, wie oben erläutert ist, für die bezweckte Abdichtung gegeneinander verspannt.In Fig. 10 illustrates how the housing frame 3 is mounted to the base plate 2 with the refractory parts mounted therein by this housing frame 3 is pivoted about the axis A formed by the pin 16 and thus fixed by the fastening elements 18 on this base plate 2. By the spring elements 11 in the housing frame, the refractory parts, as explained above, clamped for the intended seal against each other.

Diese Federorgane 11 sind im Rahmen der Erfindung mit einer solchen Federkennlinie versehen, dass in der Einschwenkposition des Gehäuserahmens 3, wie dargestellt, bei dem die Bodenplatte 5 mit seiner einen Stirnkante 5' mit der unteren Stirnfläche 21' des Kopfteils 21 in Berührung gelangt, sehr geringe Anpresskräfte wirken, womit ein Beschädigen dieser normalerweise aus keramischem Material bestehenden Feuerfestteile verhindert werden soll. Wenn die Bodenplatte 5 flächig an dieser Stirnfläche 21' anliegt, erfolgt noch eine Linearbewegung des Gehäuserahmens, bis er an der Grundplatte 2 des Konverters ansteht, sodann die volle Federkraft der Federorgane 11 wirkt.These spring members 11 are provided in the invention with such a spring characteristic that in the Einschwenkposition of the housing frame 3, as shown, in which the bottom plate 5 with its one end edge 5 'with the lower end face 21' of the head part 21 comes into contact, very low contact forces act, thus damaging these normally made of ceramic material refractory parts should be prevented. If the bottom plate 5 rests flat against this end face 21 ', there is still a linear movement of the housing frame until it is present on the base plate 2 of the converter, then the full spring force of the spring members 11 acts.

Dies ist in dem Kraft-/Weg-Diagramm der Federorgane 11 gemäss Fig. 11 verdeutlicht. In der Abszisse sind zwei Positionen des Feder-Verstellhubes s eingezeichnet, namentlich die Position sK, bei der die Berührung der Bodenplatte-Stirnkante 5' mit der unteren Stirnfläche 21' des Kopfteils 21 erfolgt, dann die Hubposition sV, bei der die Bodenplatte 5 flächig am Kopfteil 21 bzw. der Gehäuserahmen 3 an der Grundplatte 2 anliegt, wobei in dieser Stellung die definierte Anpresskraft KV gemäss der Ordinate der Federkraft K erfolgt.This is in the force / displacement diagram of the spring members 11 according Fig. 11 clarified. In the abscissa two positions of the spring Verstellhubes s are drawn, namely the position s K , in which the contact of the bottom plate end edge 5 'with the lower end face 21' of the head part 21, then the stroke position s V , in which the bottom plate 5 surface on the head part 21 and the housing frame 3 rests against the base plate 2, wherein in this position the defined contact force K V according to the ordinate of the spring force K takes place.

Der beschriebene Schiebeverschluss 1 ist mit einem einzigen Querantrieb 27 bzw. 28 ausgestattet. Es ist aber ohne weiteres im Rahmen der Erfindung möglich, den Schiebeverschluss mit zwei links und rechts angeordneten Querantrieben zu versehen, die eine Betätigung der Kassette 4 in beiden Richtungen ermöglichten, ohne dass man die Schubstangen der Querantriebe an die Kassette ankoppeln muss.The sliding closure 1 described is equipped with a single transverse drive 27 or 28. However, it is readily possible within the scope of the invention to provide the sliding closure with two transverse drives arranged on the left and right, which made it possible to actuate the cassette 4 in both directions without having to couple the push rods of the transverse drives to the cassette.

Es ist ausserdem selbstverständlich im Rahmen der Erfindung möglich, statt achteckige Bodenplatten ovale oder sonst ausgebildete Bodenplatten zu verwenden, wobei in diesem Fall die Einpassungen der Kassette ebenfalls an die Plattenkontur angepasst sind. Es könnten selbstverständlich auch mehr als zwei Bodenplatten nebeneinander angeordnet sein.It is of course also within the scope of the invention possible to use instead of octagonal bottom plates oval or otherwise formed floor panels, in which case the adjustments of the cassette also to the Plate contour are adjusted. Of course, more than two floor panels could be arranged side by side.

Die erfindungsgemässe Kassette mit dem zugehörigen Querantrieb kann auch ohne grossen Aufwand nachträglich in vorhandene Schiebeverschlusseinrichtungen der eingangs genannten Art eingebaut werden.The cassette according to the invention with the associated transverse drive can also be retrofitted into existing sliding closure devices of the type mentioned at the outset without great expense.

Claims (13)

  1. A sliding closure for a receptacle containing molten metal, comprising a housing frame (3) that can be fastened to a spout of the receptacle for holding a refractory base plate (5) and a sliding unit (7) having a refractory sliding plate (8) that can be sealingly pressed against the base plate (5) by means of spring elements (11), the sliding unit (7) being movable to and fro by means of a drive element, characterised in that there is contained within the housing frame (3) a case (4) with at least two base plates (5,6) that can be held alongside one another, the case (4) being displaceable within the housing frame (3) such that the base plate (5) in the operating position can be replaced by the second base plate (6).
  2. The sliding closure according to Claim 1, characterised in that the case (4) can be displaced to and fro between an initial position and a final position.
  3. The sliding closure according to Claim 1 or 2, characterised in that the case (4) has edgings (26) with a staggered profile in which the base plate (5) and the second base plate (6) can be inserted without any play.
  4. The sliding closure according to any of Claims 1 to 3, characterised in that the case (4) can be displaced within a two-part carrying plate (23, 24) of the housing frame (3) at a right angle to the direction of movement of the sliding unit (7) which is provided with staggered guide profiles (25) for guiding the case in the direction of displacement.
  5. The sliding closure according to any of Claims 1 to 4, characterised in that the case (4) can be displaced manually or hydraulically by a transverse drive (27 or 28) attached to the receptacle with a push rod (29 or 30) pushing the case.
  6. The sliding closure according to Claim 5, characterised in that the push rod (29 or 30) can be coupled to the case (4), and the latter can be displaced to and fro by the transverse drive (27 or 28).
  7. The sliding closure according to Claim 5 or 6, characterised in that the push rod (29 or 30) acts upon the case (4) level with the passage opening of the base plate (5) or the second base plate (6).
  8. The sliding closure according to any of Claims 1 to 7, characterised in that the refractory parts, namely the base plate (5), the sliding plate (8) and the spout sleeve (9), are held within the housing frame (3).
  9. The sliding closure according to Claim 8, characterised in that the housing frame (3) can be fastened to a base plate (2) of the receptacle, it being possible for this type of contact pressure to be generated on the refractory parts (5, 6, 9) disposed within the housing frame (3) by a pressure spring (9') disposed in the slider unit (7) such that the refractory parts are compressed lightly against one another, and so are not loose within the housing frame.
  10. The sliding closure according to Claim 9, characterised in that the housing frame (3) is provided with suspension means (16) and fixing means (18) for its releaseable attachment to the base plate (2).
  11. The sliding closure according to Claim 10, characterised in that the spring elements (11) are provided with a spring characteristic curve such that in the pivoted in position of the housing frame (3), with which the base plate (5) comes into contact with its one face edge (5)' with the lower face surface (21') of the head part (21), very slight contact forces take effect.
  12. The sliding closure according to Claim 11, characterised in that the drive element for the sliding unit (7) is attached to the base plate (2), and the sliding unit (7) can be coupled to the drive element by means of a releaseable coupling (13).
  13. A case for a sliding closure according to any of Claims 1 to 12, characterised in that the case (4) has two edgings (26) lying closely alongside one another for holding, without any play, octagonal base and second and optionally further base plates (5 and 6), the longitudinal edges of the case being provided with a staggered guide profile.
EP09732322.4A 2008-04-17 2009-04-03 Sliding closure for a receptacle containing molten metal Active EP2268433B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09732322T PL2268433T3 (en) 2008-04-17 2009-04-03 Sliding closure for a receptacle containing molten metal

Applications Claiming Priority (2)

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CH6032008 2008-04-17
PCT/EP2009/002461 WO2009127333A1 (en) 2008-04-17 2009-04-03 Sliding closure for a receptacle containing molten metal

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EP2268433A1 EP2268433A1 (en) 2011-01-05
EP2268433B1 true EP2268433B1 (en) 2013-10-16

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US (1) US9108245B2 (en)
EP (1) EP2268433B1 (en)
JP (1) JP5391266B2 (en)
KR (1) KR20110008067A (en)
CN (1) CN102026749B (en)
BR (1) BRPI0910466A2 (en)
CA (1) CA2721593C (en)
ES (1) ES2442316T3 (en)
PL (1) PL2268433T3 (en)
RU (1) RU2484922C2 (en)
TW (1) TWI515300B (en)
WO (1) WO2009127333A1 (en)
ZA (1) ZA201007260B (en)

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JPH1190618A (en) * 1997-09-13 1999-04-06 Sumitomo Jukikai Chutan Kk Mechanism for opening cover in slide gate
JP4757714B2 (en) * 2006-06-07 2011-08-24 品川リフラクトリーズ株式会社 Automatic surface pressure load slide valve device
CN200988101Y (en) * 2006-12-29 2007-12-12 鞍山热能滑动机械有限责任公司 Slide water gap open and close device for melting steel tank

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KR20110008067A (en) 2011-01-25
US20110127265A1 (en) 2011-06-02
JP2011516277A (en) 2011-05-26
TW201002830A (en) 2010-01-16
ES2442316T3 (en) 2014-02-11
RU2484922C2 (en) 2013-06-20
RU2010146657A (en) 2012-05-27
CN102026749B (en) 2014-11-19
JP5391266B2 (en) 2014-01-15
BRPI0910466A2 (en) 2017-04-04
US9108245B2 (en) 2015-08-18
EP2268433A1 (en) 2011-01-05
CA2721593A1 (en) 2009-10-22
ZA201007260B (en) 2011-08-31
CA2721593C (en) 2017-06-20
WO2009127333A1 (en) 2009-10-22
PL2268433T3 (en) 2014-03-31
CN102026749A (en) 2011-04-20
TWI515300B (en) 2016-01-01

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