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EP0277146B2 - Sliding stopper for the spout of a molten bath container - Google Patents

Sliding stopper for the spout of a molten bath container Download PDF

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Publication number
EP0277146B2
EP0277146B2 EP87904250A EP87904250A EP0277146B2 EP 0277146 B2 EP0277146 B2 EP 0277146B2 EP 87904250 A EP87904250 A EP 87904250A EP 87904250 A EP87904250 A EP 87904250A EP 0277146 B2 EP0277146 B2 EP 0277146B2
Authority
EP
European Patent Office
Prior art keywords
slider
housing
gate valve
rollers
sliding gate
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.)
Expired - Lifetime
Application number
EP87904250A
Other languages
German (de)
French (fr)
Other versions
EP0277146B1 (en
EP0277146A1 (en
Inventor
Robert Fricker
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25692773&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0277146(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CH3336/86A external-priority patent/CH673097A5/en
Priority claimed from CH3337/86A external-priority patent/CH674324A5/en
Application filed by Stopinc AG filed Critical Stopinc AG
Priority to AT87904250T priority Critical patent/ATE57860T1/en
Publication of EP0277146A1 publication Critical patent/EP0277146A1/en
Publication of EP0277146B1 publication Critical patent/EP0277146B1/en
Application granted granted Critical
Publication of EP0277146B2 publication Critical patent/EP0277146B2/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
    • B22D39/00—Equipment for supplying molten metal in rations
    • 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
    • B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel

Definitions

  • the invention relates to a slide closure on the spout of a metal-containing vessel, with a slide housing, a base plate arranged therein in a stationary manner and a slide plate which can be pressed against it by means of spring elements and which can be moved in an open or a closed position on guideways of the slide housing and in a relaxed position Spring organs swiveling slide unit is held.
  • the slide unit is generally displaceably guided in a cover attached to the slide housing.
  • a hinged to the slide housing hinged cover is provided, in which the slide unit is adjustably guided and which is preferably fastened to the slide housing by four screws in the operating position.
  • the slide unit is guided on guide strips which are screwed to the side wall of the slide housing. After loosening the clamping elements pressing the slide on the base plate and removing the guide strips, the slide unit can be removed from the slide housing.
  • the housing is provided with a removable end wall, after its removal and after the tensioning elements have been released, the slide unit can be moved out.
  • the slide closures are often dismantled after just one or two ladle castings for maintenance purposes and to replace the worn refractory plates.
  • the screws mentioned must therefore be loosened each time and the slide unit must be removed from the slide housing and re-installed accordingly. Since these sliding closures are mostly very hot and dirty during maintenance work, manual disassembly is relatively cumbersome. The assembly must also be carried out with the appropriate care, because the clamping screws, which are usually fastened with a torque wrench, require precise adjustment.
  • the object of the present invention is to develop a slide closure of the type described in the introduction in such a way that its slide unit for the very frequent replacement of the refractory plates and spouts can be detached from the housing in a very simple and time-saving manner and can be put back into operation after the refractory has been replaced .
  • this object is achieved in that the slide unit can be displaced into a position lying outside the open and the closed position, in which the slide unit is pivotably mounted in a bearing in the slide housing and the guide tracks relative to the guide tracks on the remaining track length by one of the spring members relaxing height are lowered.
  • the slide unit with the slide plate arranged therein is moved only by moving the same in the above-mentioned manner. Relieved of the pressure from the spring elements. You can therefore dismantle the slide lock in an absolutely simple way by sliding the slide unit into the above. Position is driven and then swung out of the valve body. During assembly, the slide unit is swung back into the slide housing and then moved to the closed position. As a result, the pressurization of the spring elements is automatically restored exactly without additional operations on the slide closure.
  • the invention further provides that the slide unit designed as a slide carriage can be displaced with at least two elements, in particular rollers, mounted on guides of the slide housing on both sides.
  • a housing frame which surrounds the slide carriage and to which the guides for the slide unit are fastened.
  • the invention provides that the housing frame is held on both sides by two spring elements arranged symmetrically and axially parallel to the pouring opening on the upper housing part, the spring elements expediently each consisting of a bolt with an upper and one on the housing frame on the lower stop surface and a spring arranged in the upper part of the housing and acting on the upper stop surface.
  • the housing frame is articulated around two bolts fastened in the upper housing part, which are arranged on a plane perpendicular to the direction of displacement and on the axis of the pouring opening.
  • the bolts position the housing frame and at the same time prevent the resulting axial force from acting on the springy tensioning elements of the lock.
  • the slide carriage is pivotally articulated on the push rod of the slide carriage drive, and the guides for the slide unit have a recess in the above position below each roller with a length greater than the roller diameter, through which the rollers of the slide unit can be pushed .
  • this also ensures an absolutely simple disassembly or assembly of the slide carriage.
  • the slide carriage has on both sides two rollers mounted on the guides of the housing frame and a joint hook engaging on the push rod of the slide carriage drive, the guides in the above-mentioned manner.
  • Position of the slide carriage below the coaxial bearings on the side of the slide carriage drive each have a recess with a length greater than the roller diameter, while the guides center the other two coaxially arranged rollers in the groove, and the slide unit in the above. Position about the axis of rotation of the rollers can be swiveled out while pivoting the articulated hook.
  • the invention provides that the slide carriage is pivotally articulated on the push rod of the slide carriage drive, the housing frame is pivotably mounted on the slide housing, and which is mounted in the above-mentioned manner.
  • Position guide tracks in contact with the rollers run approximately parallel to the guide tracks on the remaining track length and parallel to the direction of displacement.
  • the sliding closure 20 shown in FIG. 1 is attached to the steel jacket 12 of a partially illustrated steel melting pan 10.
  • a refractory base plate 22 arranged in the upper housing part 26 of the closure 20 is sealingly connected to a spout 14 embedded in the refractory lining 16 of the pan 10 with an opening 15.
  • the slide carriage 30 can be moved from an open to a closed position S, which is indicated by dash-dotted lines in FIG. 1, and vice versa by means of a drive.
  • the drive which is not shown, is usually a hydraulic cylinder with a push rod 28.
  • the slide carriage 30 is held at one end by an articulated connection 29 on the push rod 28, this push rod 28 being additionally mounted in the upper housing part 26.
  • the slide carriage 30 has on each of its two longitudinal sides two rotatably mounted rollers 36 with axes of rotation extending transversely to the direction of displacement. These rollers 36 are supported on guides 21 of the lock housing.
  • the guides 21 in turn are attached to a housing frame 24 surrounding the slide carriage, which is held by spring elements 50 on the upper housing part 26.
  • sliding shoes could also be used, for example.
  • the slide carriage 30 can be moved by the drive into an area lying outside the closed position (position A), in which the guideways 21c in contact with the rollers 36 are lowered by a height h which relaxes the springs in relation to the guideways 21a in the operating state are.
  • the guideways are formed in the transition area to position A as inclined surfaces 21 b, which cause a continuous increase in tensioning and a continuous reduction in spring tension when relaxing.
  • the guides 21 are interrupted by recesses 21 'with a length greater than the roller diameter.
  • the spring members 50 consist of a two-part bolt 52 and a spring 54 arranged in the upper housing part 26.
  • the bolt 52 has a lower stop surface 52 ', on which the housing frame 24 rests, and an upper stop surface 52 "against which the spring 54.
  • it is divided into two and screwed into one another, on both sides of the housing frame 24 there are two spring elements 50 symmetrical and axially parallel to the pouring opening 15 and a bolt 60, which is located at the height of the pouring opening, is screwed into the upper housing part 26 and centered the housing frame 24, but leaves it with its spherical surface articulated on all sides.
  • the springs should be dimensioned such that the slide plate 32 is pressed against the base plate 22 with a predetermined clamping force.
  • Cover plates 58 fastened to the upper housing part 26 protect the spring elements against contamination.
  • the slide plate 32 and the base plate 22 are held in a known manner in the slide unit 30 and in the upper housing part 26 by clamping means 38 and 27.
  • a pan 10 After a pan 10 has been emptied, it is normally moved to a pan location for the maintenance and replacement of the wearing parts. There it is placed on its side so that the slide unit can be swung out horizontally.
  • the slide unit moved after the pouring into the closed position is moved into the position shown in FIG. 3 by a cylinder located at the pan position and swiveled out to the dot-dash position in order to be able to easily replace the closure plates 22 and 32.
  • the lock As soon as the lock has been serviced, it is made ready for operation and the slide unit is brought back into the closed position.
  • the hydraulic cylinder on the casting platform to control the lock it should only have a stroke length that can move the slide unit from the closed to the open position and vice versa, but not to the position A.
  • a stop 25 which could be removably attached to the housing could be provided, by means of which the slide unit could not be moved into a position A lying outside the closed position.
  • a stop 25 is indicated in Fig. 1. This is designed as an axis 25 and held extractable in the housing frame 24.
  • the slide unit 80 has two rollers 86, 86 'on both sides.
  • the rollers 86 arranged coaxially on the side of the drive element can be pushed in the position A lying outside the closed position S of the slide unit 80 by recesses 21 'provided in the guides 21, while the two coaxial rollers 86' opposite in the mentioned position Avon a groove 81 ' are surrounded and centered. Due to the fact that the slide unit 80 is articulated on the push rod 28 of the drive element by means of an articulated hook 89, it can be pivoted out in position A about the axis of rotation of the rollers 86 '.
  • the slide closure 70 shown in FIG. 5 functions essentially similar to that shown in FIG. 1. Therefore, only the different features of this closure 70 compared to the closure 20 are explained below.
  • the slide carriage 50 which is also pivotally articulated at one end by a joint 79 on the push rod 78 of a drive, not shown, with two rotatably mounted rollers 86 on each side, is slidably held in a cover 74 which is articulated on the housing 76 and can be swung out.
  • the slide carriage 80 can in turn be moved by the drive into an area lying outside the closed position S, in which the guide tracks 71c in contact with the rollers 86 are lowered by a height h which relaxes the springs compared to the area of the tracks 71a which is in the operating state.
  • the guide tracks 71 c run parallel to the tracks 71 and also parallel to the direction of displacement of the slide carriage 80. Inclined surfaces 71 b in turn ensure that the slide carriage is continuously relaxed or tensioned.
  • the cover 74 is fastened to the housing 76 in a known manner by means of tensioning elements 75, not shown.
  • the spring members 90 are supported in the slide carriage 80 and press directly onto the slide plate 82 in the operating state of the closure.
  • the slide carriage is first moved into the relaxed position, then the cover 74 can be removed Unscrewed housing 76 and swung out as well as the slide carriage, and the maintenance work already mentioned can then be carried out.
  • the slide carriage 80 is clamped by a movement in the direction of the open position and into the closed position S driven.

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

Abstract

A sliding stopper (20) has a sliding unit (30) adjustable by a driving element and movable in a position (A) away from the closing position in which the sliding unit (30) is pivotally mounted in a mounting (29) and guideways (21c) are sunk in relationship to guideways (21a) on the remaining pathway to the extent of the height of release (h) of spring elements (50). This sliding unit can thus be easily pivoted away from the housing (24) for the frequently required replacement of worn-out plates (22, 32) and then be returned to its working position once the plates have been replaced.

Description

Die Erfindung betrifft einen Schiebeverschluss am Ausguss eines Metallschmelze enthaltenden Gefässes, mit einem Schiebergehäuse, einer darin ortsfest angeordneten Bodenplatte und einer gegen diese mittels Federorgane dichtend anpressbaren Schieberplatte, die in einer auf Führungsbahnen des Schiebergehäuses in eine Offen- bzw. eine Schliessstellung verschiebbaren und bei entspannten Federorganen ausschwenkbaren Schiebereinheit gehalten ist.The invention relates to a slide closure on the spout of a metal-containing vessel, with a slide housing, a base plate arranged therein in a stationary manner and a slide plate which can be pressed against it by means of spring elements and which can be moved in an open or a closed position on guideways of the slide housing and in a relaxed position Spring organs swiveling slide unit is held.

Bei Schiebeverschlüssen der genannten Gattung ist im allgemeinen die Schiebereinheit in einem an das Schiebergehäuse befestigten Dekkel verschiebbar geführt. So ist z.B. bei einem in der Druckschrift DE-OS 21 61 368 beschriebenen Schiebeverschluss ein an das Schiebergehäuse ausschwenkbar angelenkter Deckel vorgesehen, in dem die Schiebereinheit verstellbar geführt ist und der in Betriebsposition vorzugsweise von vier Schrauben an das Schiebergehäuse befestigt ist.In the case of sliding closures of the type mentioned, the slide unit is generally displaceably guided in a cover attached to the slide housing. For example, in a sliding closure described in the document DE-OS 21 61 368 a hinged to the slide housing hinged cover is provided, in which the slide unit is adjustably guided and which is preferably fastened to the slide housing by four screws in the operating position.

Bei einem weiteren Schiebeverschluss gemäss der Druckschrift DE-PS 32 08101 ist die Schiebereinheit auf Führungsleisten geführt, die an die Seitenwand des Schiebergehäuses geschraubt sind. Nach dem Lösen der die Schieberan die Bodenplatte anpressenden Spannorgane sowie dem Wegnehmen der Führungsleisten kann die Schiebereinheit aus dem Schiebergehäuse herausgenommen werden. In einer anderen Variante ist vorgesehen, das Gehäuse mit einer wegnehmbaren Stirnwand zu versehen, nach deren Wegnahme sowie nach dem Lösen der Spannorgane die Schiebereinheit herausgefahren werden kann.In a further slide closure according to the document DE-PS 32 08101, the slide unit is guided on guide strips which are screwed to the side wall of the slide housing. After loosening the clamping elements pressing the slide on the base plate and removing the guide strips, the slide unit can be removed from the slide housing. Another variant provides for the housing to be provided with a removable end wall, after its removal and after the tensioning elements have been released, the slide unit can be moved out.

Im Betrieb werden die Schiebeverschlüsse oft bereits nach einem oder zwei Pfannenabgüssen zu Wartungszwecken und zum Auswechseln der verschlissenen feuerfesten Platten demontiert. Bei den oben erwähnten Schiebeverschlüssen müssen daher die genannten Schrauben jedesmal gelöst und die Schiebereinheit von dem Schiebergehäuse herausgenommen und entsprechend wieder montiert werden. Da diese Schiebeverschlüsse bei den Wartungsarbeiten meisten sehr stark erhitzt und verschmutzt sind, ist die von Hand durchzuführende Demontage relativ umständlich. Auch die Montage muss mit entsprechender Sorgfalt durchgeführt werden, denn die üblicherweise mit einem Drehmomentschlüssel zu befestigenden Spannschrauben erfordern eine genaue Einstellung.In operation, the slide closures are often dismantled after just one or two ladle castings for maintenance purposes and to replace the worn refractory plates. In the case of the slide closures mentioned above, the screws mentioned must therefore be loosened each time and the slide unit must be removed from the slide housing and re-installed accordingly. Since these sliding closures are mostly very hot and dirty during maintenance work, manual disassembly is relatively cumbersome. The assembly must also be carried out with the appropriate care, because the clamping screws, which are usually fastened with a torque wrench, require precise adjustment.

Aufgabe vorliegender Erfindung besteht demgegenüber darin, eine Schiebeverschluss der eingangs beschriebenen Gattung derart weiterzubilden, dass dessen Schiebereinheit für das sehr häufige Auswechseln der Feuerfest-Platten und -Ausgüsse auf sehr einfache und zeitsparende Weise vom Gehäuse gelöst und nach erfolgtem Feuerfestwechsel wieder in Betriebszustand gesetzt werden kann.In contrast, the object of the present invention is to develop a slide closure of the type described in the introduction in such a way that its slide unit for the very frequent replacement of the refractory plates and spouts can be detached from the housing in a very simple and time-saving manner and can be put back into operation after the refractory has been replaced .

Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass die Schiebereinheit in eine ausser halb der Offen- und der Schliessstellung liegende Position verschiebbar ist, in welcher die Schiebereinheit in einer Lagerung im Schiebergehäuse schwenkbar lagert und die Führungsbahnen gegenüber den Führungsbahnen auf der übrigen Bahnlänge um eine die Federorgane entspannende Höhe abgesenkt sind.According to the invention, this object is achieved in that the slide unit can be displaced into a position lying outside the open and the closed position, in which the slide unit is pivotably mounted in a bearing in the slide housing and the guide tracks relative to the guide tracks on the remaining track length by one of the spring members relaxing height are lowered.

Mit dieser erfindungsgemässen Gestaltung des Schiebeverschlusses wird die Schiebereinheit mit der darin angeordneten Schieberplatte allein durch Verschieben derselben in der o.g. Position von der Druckbeaufschlagung der Federorgane entlastet. Man kann daher den Schiebeverschluss auf absolut einfache Art demontieren, indem die Schiebereinheit in die o.g. Position gefahren wird und dann aus dem Schiebergehäuse ausgeschwenkt wird. Bei der Montage wird die Schiebereinheit umgekehrt ins Schiebergehäuse zurückgeschwenkt und anschliessend in die Schliessstellung gefahren. Dadurch wird selbsttätig die Druckbeaufschlagung der Federorgane genau wieder hergestellt, ohne zuätzliche Bedienungen an dem Schiebeverschluss vorzunehmen.With this design of the slide closure according to the invention, the slide unit with the slide plate arranged therein is moved only by moving the same in the above-mentioned manner. Relieved of the pressure from the spring elements. You can therefore dismantle the slide lock in an absolutely simple way by sliding the slide unit into the above. Position is driven and then swung out of the valve body. During assembly, the slide unit is swung back into the slide housing and then moved to the closed position. As a result, the pressurization of the spring elements is automatically restored exactly without additional operations on the slide closure.

Um eine kontinuierliche und nicht ruckartige Ver- bzw. Entspannung der Schiebereinheit im Schiebergehäuse zu erzielen, sind die Führungsbahnen im Uebergangsbereich zur o.g. Position als schräge Ebenen ausgebildet.In order to achieve a continuous and non-jerky expansion or relaxation of the slide unit in the slide housing, the guideways in the transition area to the above Position formed as inclined planes.

Die Erfindung sieht ferner vor, dass die als Schieberwagen ausgebildete Schiebereinheit mit beidseitig mindestens je zwei auf Führungen des Schiebergehäuses lagernden Elementen, insbesondere Rollen verschiebbar ist.The invention further provides that the slide unit designed as a slide carriage can be displaced with at least two elements, in particular rollers, mounted on guides of the slide housing on both sides.

Bei einer weiteren Ausführungsform gemäss der Erfindung ist ein den Schieberwagen umgebender Gehäuserahmen vorgesehen, an dem die Führungen für die Schiebereinheit befestigt sind.In a further embodiment according to the invention, a housing frame is provided which surrounds the slide carriage and to which the guides for the slide unit are fastened.

Zur Erzielung einer vorgegebenen Spannkraft der Schieber- an die Bodenplatte sieht die Erfindung vor, dass der Gehäuserahmen beidseitig von zwei zur Ausgussöffnung symmetrisch und achsparallel angeordneten Federorganen am Gehäuseoberteil gehalten ist, wobei die Federorgane zweckmässigerweise jeweils aus einem Bolzen mit einer oberen und einer auf dem Gehäuserahmen aufliegenden unteren Anschlagfläche sowie einer im Gehäuseoberteil angeordneten, auf die obere Anschlagfläche wirkenden Feder bestehen.To achieve a predetermined clamping force of the slide on the base plate, the invention provides that the housing frame is held on both sides by two spring elements arranged symmetrically and axially parallel to the pouring opening on the upper housing part, the spring elements expediently each consisting of a bolt with an upper and one on the housing frame on the lower stop surface and a spring arranged in the upper part of the housing and acting on the upper stop surface.

Bei einer weiteren zweckmässigen Ausführungsform nach der Erfindung ist der Gehäuserahmen gelenkig um zwei im Gehäuseoberteil befestigte Bolzen gelagert, die auf einer senkrecht zur Verschieberichtung und auf der Achse der Ausgussöffnung liegenden Ebene angeordnet sind. Die Bolzen positionieren den Gehäuserahmen und verhindern gleichzeitig das Angreifen der entstehenden Axialkraft auf die federnden Spannorgane des Verschlusses.In a further expedient embodiment according to the invention, the housing frame is articulated around two bolts fastened in the upper housing part, which are arranged on a plane perpendicular to the direction of displacement and on the axis of the pouring opening. The bolts position the housing frame and at the same time prevent the resulting axial force from acting on the springy tensioning elements of the lock.

Bei einer weiteren, sehr vorteilhaften Ausführungsform nach der Erfindung ist der Schieberwagen an die Schubstange des Schieberwagen-Antriebes schwenkbar angelenkt, und die Führungen für die Schiebereinheit weisen in der o.g. Position unterhalb jeder Rolle eine Ausnehmung mit einer Länge grösser als der Rollendurchmesser auf, durch welche die Rollen der Schiebereinheit schiebbar sind. Dadurch ist nebst der sehr einfachen Ver- bzw. Entspannung auch noch eine absolut einfache Demontage bzw. Montage des Schieberwagens gewährleistet.Another, very advantageous embodiment Form according to the invention, the slide carriage is pivotally articulated on the push rod of the slide carriage drive, and the guides for the slide unit have a recess in the above position below each roller with a length greater than the roller diameter, through which the rollers of the slide unit can be pushed . In addition to the very simple expansion or relaxation, this also ensures an absolutely simple disassembly or assembly of the slide carriage.

Bei einer weiteren vorteilhaften Ausführungsform weist der Schieberwagen beidseitig zwei auf den Führungen des Gehäuserahmens lagernde Rollen sowie einen an der Schubstange des Schieberwagen-Antriebs angreifenden Gelenkhaken auf, wobei die Führungen in der o.g. Position des Schieberwagens unterhalb der gleichachsig auf der Seite des Schieberwagens-Antriebs lagernde Rollen je eine Ausnehmung mit der Länge grösser als der Rollendurchmesser haben, während die Führungen die anderen beiden gleichachsig angeordneten Rollen in der Nut zentrieren, und die Schiebereinheit in der o.g. Position um die Drehachse der Rollen unter Mitschwenkung des Gelenkhakens ausschwenkbar ist.In a further advantageous embodiment, the slide carriage has on both sides two rollers mounted on the guides of the housing frame and a joint hook engaging on the push rod of the slide carriage drive, the guides in the above-mentioned manner. Position of the slide carriage below the coaxial bearings on the side of the slide carriage drive each have a recess with a length greater than the roller diameter, while the guides center the other two coaxially arranged rollers in the groove, and the slide unit in the above. Position about the axis of rotation of the rollers can be swiveled out while pivoting the articulated hook.

Alternativ dazu sieht die Erfindung vor, dass der Schieberwagen an die Schubstange des Schieberwagen-Antriebes schwenkbar angelenkt ist, der Gehäuserahmen am Schiebergehäuse schwenkbar gelagert ist, und die in der o.g. Position mit den Rollen in Berührung stehenden Fürhungsbahnen annähernd parallel zu den Führungsbahnen auf der übrigen Bahnlänge und parallel zur Verschieberichtung verlaufen.As an alternative to this, the invention provides that the slide carriage is pivotally articulated on the push rod of the slide carriage drive, the housing frame is pivotably mounted on the slide housing, and which is mounted in the above-mentioned manner. Position guide tracks in contact with the rollers run approximately parallel to the guide tracks on the remaining track length and parallel to the direction of displacement.

Ausführungsbeispiele der Erfindung sind nachstehend anhand der Zeichnung erläutert. Es zeigen:

  • Fig. 1 eine erste Ausführung des erfindungsgemässen Schiebeverschlusses mit einem am Schiebergehäuse angeschraubten Gehäuserahmen für die verschiebbare Schiebereinheit, im Längsschnitt dargestellt,
  • Fig. 2 den Schiebeverschluss nach Fig. 1, im Querschnitt dargestellt,
  • Fig. 3 den Schiebeverschluss nach Fig. 1 mit ausgeschwenkter Schiebereinheit,
  • Fig. 4 einen Längsschnitt durch den Schiebeverschluss nach Fig. 1 mit einer Variante der Anlenkung der Schiebereinheit,
  • Fig. 5 eine zweite Ausführung des erfindungsgemässen Schiebeverschlusses mit abklappbarem Gehäusedeckel dargestellt, und
  • Fig. 6 den Schiebeverschluss nach Fig. 5 im Querschnitt.
Embodiments of the invention are explained below with reference to the drawing. Show it:
  • 1 shows a first embodiment of the slide closure according to the invention with a housing frame for the displaceable slide unit screwed onto the slide housing, shown in longitudinal section,
  • 2 shows the sliding closure according to FIG. 1, shown in cross section,
  • 3 shows the slide closure according to FIG. 1 with the slide unit pivoted out, FIG.
  • 4 shows a longitudinal section through the slide closure according to FIG. 1 with a variant of the articulation of the slide unit,
  • Fig. 5 shows a second embodiment of the sliding closure according to the invention with a hinged housing cover, and
  • Fig. 6 shows the slide closure of Fig. 5 in cross section.

Der in Fig. 1 gezeigte Schiebeverschluss 20 ist am Stahlmantel 12 einer teilweise dargestellten Stahlschmelzepfanne 10 befestigt. An einem in der feuerfesten Auskleidung 16 der Pfanne 10 eingebetteten Ausguss 14 mit einer Oeffnung 15 ist eine im Gehäuseoberteil 26 des Verschlusses 20 angeordnete feuerfeste Bodenplatte 22 abdichtend angeschlossen. Diese weist eine mit der Ausgussöffnung 15 koaxiale Oeffnung 23 auf, die in der gezeichneten Offenstellung des Verschlusses auch zur Oeffnung 33 der im Schieberwagen 30 gehaltenen feuerfesten Schieberplatte 32 sowie des Wechselausgusses 34 überdeckend ist.The sliding closure 20 shown in FIG. 1 is attached to the steel jacket 12 of a partially illustrated steel melting pan 10. A refractory base plate 22 arranged in the upper housing part 26 of the closure 20 is sealingly connected to a spout 14 embedded in the refractory lining 16 of the pan 10 with an opening 15. This has an opening 23 coaxial with the pouring opening 15, which in the drawn open position of the closure also covers the opening 33 of the refractory slide plate 32 held in the slide carriage 30 and of the interchangeable spout 34.

Im Betriebszustand kann der Schieberwagen 30 von einerOffen- in eine Schliessstellung S, die in Fig. 1 strichpunktiert angedeutet ist, und umgekehrt mittels eines Antriebes verschoben werden. Beim Antrieb, der nicht gezeigt ist, handelt es sich überlicherweise um einen Hydraulikzylinder mit einer Schubstange 28. Der Schieberwagen 30 ist dabei an seinem einen Ende durch eine Gelenkverbindung 29 an der Schubstange 28 gehalten, wobei diese Schubstange 28 zusätzlich im Gehäuseoberteil 26 gelagert ist. Der Schieberwagen 30 hat an seinen beiden Längsseiten je zwei drehbar gelagerte Rollen 36 mit quer zur Verschieberichtung verlaufenden Drehachsen. Diese Rollen 36 sind auf Führungen 21 des Verschlussgehäuses gestützt. Die Führungen 21 ihrerseits sind an einem den Schieberwagen umgebenden Gehäuserahmen 24 befestigt, der von Federorganen 50 am Gehäuseoberteil 26 gehalten ist. Anstelle der Rollen 36 könnten beispielsweise auch Gleitschuhe verwendet werden.In the operating state, the slide carriage 30 can be moved from an open to a closed position S, which is indicated by dash-dotted lines in FIG. 1, and vice versa by means of a drive. The drive, which is not shown, is usually a hydraulic cylinder with a push rod 28. The slide carriage 30 is held at one end by an articulated connection 29 on the push rod 28, this push rod 28 being additionally mounted in the upper housing part 26. The slide carriage 30 has on each of its two longitudinal sides two rotatably mounted rollers 36 with axes of rotation extending transversely to the direction of displacement. These rollers 36 are supported on guides 21 of the lock housing. The guides 21 in turn are attached to a housing frame 24 surrounding the slide carriage, which is held by spring elements 50 on the upper housing part 26. Instead of the rollers 36, sliding shoes could also be used, for example.

Erfindungsgemäss kann der Schieberwagen 30 vom Antrieb in einen ausserhalb der Schliessstellung liegenden Bereich (Position A) verschoben werden, in dem die mit den Rollen 36 in Berührung stehenden Führungsbahnen 21c gegenüber den Führungsbahnen 21 a im Bereich des Betriebszustandes um eine die Federn entspannende Höhe h abgesenkt sind. Die Führungsbahnen sind im Uebergangsbereich zur Position A als Schrägflächen 21 b ausgebildet, die beim Verspannen ein kontinuierliches Ansteigen und beim Entspannen ein kontinuierliches Reduzieren der Federspannkraft bewirken. Nach den Schrägflächen 21 sind die Führungen 21 durch Ausnehmungen 21' mit einer Länge grösser als der Rollendurchmesser unterbrochen. Dadurch kann der Schieberwagen 30 vom Gehäuse ausgeschwenkt werden und das regelmässig erforderliche Auswechseln der verschlissenen Platten 22, 32 sowie des Wechselausgusses 34 durchgeführt werden.According to the invention, the slide carriage 30 can be moved by the drive into an area lying outside the closed position (position A), in which the guideways 21c in contact with the rollers 36 are lowered by a height h which relaxes the springs in relation to the guideways 21a in the operating state are. The guideways are formed in the transition area to position A as inclined surfaces 21 b, which cause a continuous increase in tensioning and a continuous reduction in spring tension when relaxing. After the inclined surfaces 21, the guides 21 are interrupted by recesses 21 'with a length greater than the roller diameter. As a result, the slide carriage 30 can be pivoted out of the housing and the regularly required replacement of the worn plates 22, 32 and of the interchangeable spout 34 can be carried out.

Die Federorgane 50 bestehen gemäss Fig. 2 aus einem zweiteiligen Bolzen 52 und einer im Gehäuseoberteil 26 angeordneten Feder 54. Der Bolzen 52 hat eine untere Anschlagfläsche 52', auf der der Gehäuserahmen 24 aufliegt, und eine obere Anschlagfläche 52", gegen die die Feder 54 drückt. Aus Montagezwecken ist er zweigeteilt und dabei ineinanderverschraubt. Beidseits des Gehäuserahmens 24 sind deren zwei Federorgane 50 symmetrisch und achsparallel zur Ausgussöffnung 15 und ein Bolzen 60 vorgesehen, der sich auf der Höhe der Ausgussöffnu ng befindet, in den Gehäuseoberteil 26 geschraubt ist und den Gehäuserahmen 24 zentriert, ihn mit seiner balligen Oberfläche jedoch allseitig gelenkig lässt. Die Federn sollen so bemessen sein, dass die Schieberplatte 32 mit einer vorgegebenen Spannkraft an die Bodenplatte 22 gepresst wird. An den Gehäuseoberteil 26 befestigte Abdeckbleche 58 schützen die Federorgane vor Verschmutzung.2, the spring members 50 consist of a two-part bolt 52 and a spring 54 arranged in the upper housing part 26. The bolt 52 has a lower stop surface 52 ', on which the housing frame 24 rests, and an upper stop surface 52 "against which the spring 54. For assembly purposes, it is divided into two and screwed into one another, on both sides of the housing frame 24 there are two spring elements 50 symmetrical and axially parallel to the pouring opening 15 and a bolt 60, which is located at the height of the pouring opening, is screwed into the upper housing part 26 and centered the housing frame 24, but leaves it with its spherical surface articulated on all sides. The springs should be dimensioned such that the slide plate 32 is pressed against the base plate 22 with a predetermined clamping force. Cover plates 58 fastened to the upper housing part 26 protect the spring elements against contamination.

Die Schieberplatte 32 sowie die Bodenplatte 22 sind durch Spannmittel 38 bzw. 27 auf bekannte Art in der Schiebereinheit 30 bzw. im Gehäuseoberteil 26 gehalten.The slide plate 32 and the base plate 22 are held in a known manner in the slide unit 30 and in the upper housing part 26 by clamping means 38 and 27.

Nach dem Entleeren einer Pfanne 10 wird diese im Normalfall zwecks Wartung und Auswechslung derVerschleissteile zu einem Pfannenplatz gefahren. Dort wird sie so auf die Seite gelegt, dass die Schiebereinheit horizontal ausschwenkbar ist. Die nach dem Abgiessen in Schliessstellung gefahrene Schiebereinheit wird von einem am Pfannenplatz befindlichen Zylinder in die gemäss Fig. 3 gezeigte Stellung gefahren und bis zur strichpunktierten Position ausgeschwenkt, um die Verschlussplatten 22 und 32 ohne weiteres austauschen zu können. Sobald der Verschluss gewartet ist, wird er betriebsfertig gemacht und die Schiebereinheit wieder in Schliessstellung gebracht. Der auf der Giessbühne zum Steuern des Verschlusses befindliche Hydraulikzylinder soll im Unterschied zu dem am Pfannenplatz nur eine Hublänge aufweisen, die die Schiebereinheit zwar von der Schliess- in die Offenstellung und umgekehrt bewegen kann, nicht aber in die ausserhalb der Schliessstellung liegende Position A. Falls auf der Giessbühne und am Pfannenplatz derselbe Zylinder verwendet werden müsste, könnte ein am Gehäuse wegnehmbar befestigter Anschlag 25 vorgesehen sein, durch den die Schiebereinheit nicht in eine ausserhalb der Schliessstellung liegende Position A bewegbar wäre. Ein solcher Anschlag 25 ist andeutungsweise in Fig. 1 gezeigt. Dieser ist als Achse 25 ausgebildet und im Gehäuserahmen 24 herausziehbar gehalten.After a pan 10 has been emptied, it is normally moved to a pan location for the maintenance and replacement of the wearing parts. There it is placed on its side so that the slide unit can be swung out horizontally. The slide unit moved after the pouring into the closed position is moved into the position shown in FIG. 3 by a cylinder located at the pan position and swiveled out to the dot-dash position in order to be able to easily replace the closure plates 22 and 32. As soon as the lock has been serviced, it is made ready for operation and the slide unit is brought back into the closed position. In contrast to the hydraulic cylinder on the casting platform to control the lock, it should only have a stroke length that can move the slide unit from the closed to the open position and vice versa, but not to the position A. Outside the same cylinder would have to be used on the casting platform and at the pan location, a stop 25 which could be removably attached to the housing could be provided, by means of which the slide unit could not be moved into a position A lying outside the closed position. Such a stop 25 is indicated in Fig. 1. This is designed as an axis 25 and held extractable in the housing frame 24.

Bei einer in Fig. 4 gezeigten Variante einerAnlenkung der Schiebereinheit 80 weist diese beidseitig zwei Rollen 86, 86' auf. Die auf der Seite des Antriebsorganes gleichachsig angeordneten Rollen 86 sind in der ausserhalb der Schliessstellung S der Schiebereinheit 80 liegenden Position Adurch in den Führungen 21 vorgesehenen Ausnehmungen 21' schiebbar, während die beiden gleichachsigen Rollen 86' gegenüberliegend in der genannten Position Avon einer Nut 81' umgeben und zentriert sind. Dadurch, dass die Schiebereinheit 80 durch einen Gelenkhaken 89 an der Schubstange 28 des Antriebsorganes angelenkt ist, kann sie in der Position A um die Drehachse der Rollen 86' ausgeschwenkt werden.In a variant of a linkage of the slide unit 80 shown in FIG. 4, it has two rollers 86, 86 'on both sides. The rollers 86 arranged coaxially on the side of the drive element can be pushed in the position A lying outside the closed position S of the slide unit 80 by recesses 21 'provided in the guides 21, while the two coaxial rollers 86' opposite in the mentioned position Avon a groove 81 ' are surrounded and centered. Due to the fact that the slide unit 80 is articulated on the push rod 28 of the drive element by means of an articulated hook 89, it can be pivoted out in position A about the axis of rotation of the rollers 86 '.

Der in Fig. 5 gezeigte Schiebeverschluss 70 funktioniert im wesentlichen ähnlich wie der in Fig. 1 gezeigte. Es werden deshalb im folgenden nur die unterschiedlichen Merkmale dieses Verschlusses 70 gegenüber dem Verschluss 20 erläutert. Der ebenfalls an seinem einen Ende durch eine Gelenkverbindung 79 an der Schubstange 78 eines nicht dargestellten Antriebes verschwenkbar angelenkte Schieberwagen 50 mit beidseitig je zwei drehbar gelagerten Rollen 86 ist in einen am Gehäuse 76 ausschwenkbar angelenkten Dekkel 74 verschiebbar gehalten.The slide closure 70 shown in FIG. 5 functions essentially similar to that shown in FIG. 1. Therefore, only the different features of this closure 70 compared to the closure 20 are explained below. The slide carriage 50, which is also pivotally articulated at one end by a joint 79 on the push rod 78 of a drive, not shown, with two rotatably mounted rollers 86 on each side, is slidably held in a cover 74 which is articulated on the housing 76 and can be swung out.

Der Schieberwagen 80 kann wiederum erfindungsgemäss vom Antrieb in einen ausserhalb der Schliessstellung S liegenden Bereich verschoben werden, in dem die mit den Rollen 86 in Berührung stehenden Führungsbahnen 71c gegenüber den im Betriebszustand befindlichen Bereich der Bahnen 71a um eine die Federn entspannende Höhe h abgesenkt sind. Die Führungsbahnen 71 c verlaufen dabei parallel zu den Bahnen 71 und auch parallel zur Verschieberichtung des Schieberwagens 80. Schrägflächen 71 b sorgen wiederum dafür, dass der Schieberwagen kontinuierlich ent- bzw. verspannt wird.According to the invention, the slide carriage 80 can in turn be moved by the drive into an area lying outside the closed position S, in which the guide tracks 71c in contact with the rollers 86 are lowered by a height h which relaxes the springs compared to the area of the tracks 71a which is in the operating state. The guide tracks 71 c run parallel to the tracks 71 and also parallel to the direction of displacement of the slide carriage 80. Inclined surfaces 71 b in turn ensure that the slide carriage is continuously relaxed or tensioned.

Der Deckel 74 ist auf bekannte Art mittels nicht näher gezeigten Spannorganen 75 an das Gehäuse 76 befestigt. Wie aus Fig. 6 ersichtlich ist, sind die Federorgane 90 im Schieberwagen 80 abgestützt und pressen im Betriebszustand des Verschlusses unmittelbar auf die Schieberplatte 82. Bei der Demontage des Verschlusses 70 wird der Schieberwagen zuerst in die entspannte Stellung gefahren, sodann kann der Deckel 74 vom Gehäuse 76 abgeschraubt und wie auch der Schieberwagen ausgeschwenkt, und es könn en dann die bereits genannten Wartungsarbeiten durchgeführt werden, Bei der Montage wird nach der Befestigung des Deckels 74 am Gehäuse 76 der Schieberwagen 80 durch eine Bewegung in Richtung der Offenstellung verspannt und in die Schliessstellung S gefahren.The cover 74 is fastened to the housing 76 in a known manner by means of tensioning elements 75, not shown. As can be seen from FIG. 6, the spring members 90 are supported in the slide carriage 80 and press directly onto the slide plate 82 in the operating state of the closure. When the closure 70 is removed, the slide carriage is first moved into the relaxed position, then the cover 74 can be removed Unscrewed housing 76 and swung out as well as the slide carriage, and the maintenance work already mentioned can then be carried out. During assembly, after the cover 74 is fastened to the housing 76, the slide carriage 80 is clamped by a movement in the direction of the open position and into the closed position S driven.

Claims (10)

1. Sliding gate valve at the outlet of a vessel containing metal melt including a slider housing, a base plate fixedly arranged therein and a sliding plate which may be sealingly pressed against it by means of spring elements and which is supported in a slider unit which is slidable on guide tracks on the slider housing into an open or a closed position and may be pivoted out when the spring elements are relieved, characterised in that the slider unit (30,70,80) is slidable into a position (A) which lies outside the open and the closed positions and in which the slider unit (30,70,80) is pivotally mounted in a mounting (29,86',79) in the slider housing and the guide tracks (21c,71c) are lowered with respect to the guide tracks (21a,71a) over the remaining track length by a height (h) which relieves the spring elements (50,90).
2. Sliding gate valve as claimed in claim 1, characterised in that the guide tracks are constructed as oblique plane surfaces (21 b, 71 b) in the transitional region to the position (A).
3. Sliding gate valve as claimed in claim 1 or 2, characterised in that the slider unit, which is constructed as a slider carriage (30, 80), is movable with at least two elements (36, 86), particularly rollers, mounted on both sides on guide (21, 71) on the slider housing (24, 26, 76, 78).
4. Sliding gate valve as claimed in one or more of claims 1 to 3, characterised in that a housing frame (24) is provided which surrounds the slider carriage (30) and to which the guides (21) are secured.
5. Sliding gate valve as claimed in claim 4, characterised in that the housing frame (24) is mounted on the upper portion (26) of the housing on both sides by two spring elements (50) arranged symmetrically and with their axes parallel to the discharge opening.
6. Sliding gate valve as claimed in claim 5, characterised in that the spring elements (50) each comprise a peg (52) with an upper abutment surface and a lower abutment surface (52') resting on the housing frame and a spring (54) which is arranged in the upper portion (26) of the housing and acts on the upper abutment surface (52").
7. Sliding gate valve as claimed in one or more of claims 4 to 6, characterised in that the housing frame (24) is pivotally supported about two pegs (60) which are secured in the upper portion (26) of the housing and which are arranged on a plane lying perpendicular to the direction of movement and on the axis of the discharge opening (15).
8. Sliding gate valve as claimed in one or more of claims 3 to 7, characterised in that the slider carriage (30) is pivotally hinged to the drive rod (28) of the slider carriage drive unit and the guides (21) have a recess (21') in the position (A) below each roller (36) with a length greaterthan the roll- erdiameter, through which recess the rollers (36) may be slid.
9. Sliding gate valve as claimed in one or more of claims 3 to 7, characterised in that on both sides the slider carriage (80) has two rollers (86, 86') supported on the guides (21) of the housing frame (24) and a joint hook (89) engaging the drive rod (28) of the slider carriage drive unit, that the guides (21) have a respective recess (21') with a length greater than the roller diameter in the position (A) of the slider carriage (80) below the rollers (86) which are supported on the same axis on the slider carriage drive unit side, whilst the guides (21) centre the other two rollers (86'), which are arranged on the same axis, in the groove (81'), and that the slider unit (80) in the position (A) may be swung out about the rotary axis of the rollers (86') together with the joint hook (89).
10. Sliding gate valve as claimed in claim 4, characterised in that the slider carriage (80) is pivotally connected to the drive rod (78) of the slide carriage drive unit, the housing frame (74) is pivotally mounted on the slider housing (76) and the guide tracks (71c), which in the position (A) are in contact with the rollers (86), extend approximately parallel to the guide tracks (71a) overthe remaining track length and parallel to the direction of movement.
EP87904250A 1986-08-20 1987-06-23 Sliding stopper for the spout of a molten bath container Expired - Lifetime EP0277146B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87904250T ATE57860T1 (en) 1986-08-20 1987-06-23 SLIDING CAP ON THE SPOUT OF A VESSEL CONTAINING METAL METAL.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH3336/86A CH673097A5 (en) 1986-08-20 1986-08-20 Metallurgical vessel sliding closure
CH3337/86 1986-08-20
CH3336/86 1986-08-20
CH3337/86A CH674324A5 (en) 1986-08-20 1986-08-20 Metallurgical vessel sliding closure

Publications (3)

Publication Number Publication Date
EP0277146A1 EP0277146A1 (en) 1988-08-10
EP0277146B1 EP0277146B1 (en) 1990-10-31
EP0277146B2 true EP0277146B2 (en) 1993-07-14

Family

ID=25692773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87904250A Expired - Lifetime EP0277146B2 (en) 1986-08-20 1987-06-23 Sliding stopper for the spout of a molten bath container

Country Status (6)

Country Link
US (1) US4848604A (en)
EP (1) EP0277146B2 (en)
KR (1) KR920001344B1 (en)
BR (1) BR8707428A (en)
CA (1) CA1330248C (en)
WO (1) WO1988001211A1 (en)

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EP0875320A3 (en) * 1997-04-30 1999-04-28 Stopinc AG Sliding gate for molten metal containing vessels

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CH680501A5 (en) * 1989-12-06 1992-09-15 Stopinc Ag
CH680838A5 (en) * 1990-02-07 1992-11-30 Stopinc Ag
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CH683969A5 (en) * 1991-07-12 1994-06-30 Stopinc Ag Fireproof closure plate on the spout of a vessel containing molten metal.
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US5630527A (en) * 1994-09-12 1997-05-20 Philip Fishman Corporation Electronically controlled, positive-displacement fluid dispenser
EP0727268B1 (en) * 1995-02-17 1999-04-14 Stopinc Aktiengesellschaft Sliding closure system for a container holding a bath of molten metal
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JP4448323B2 (en) * 2003-12-24 2010-04-07 品川リフラクトリーズ株式会社 Molten metal pouring amount control device
JP4216244B2 (en) * 2004-11-11 2009-01-28 品川白煉瓦株式会社 Slide valve device in casting equipment
EP1894649A1 (en) * 2006-09-01 2008-03-05 Stopinc Aktiengesellschaft Device for maintenance of a sliding gate mounted at the outlet of a metallutgical vessel
KR100959071B1 (en) * 2008-06-12 2010-05-20 조선내화 주식회사 Slide gate
US8783528B1 (en) 2010-08-27 2014-07-22 J.W. Hicks, Inc. Slide gate for casting operations
CH710652B1 (en) * 2015-01-23 2019-06-28 Refractory Intellectual Property Gmbh & Co Kg Sliding closure for a container containing molten metal.
EP3587002B1 (en) * 2018-06-26 2020-12-16 Refractory Intellectual Property GmbH & Co. KG Sliding closure for a metallurgical vessel
CH715297A2 (en) * 2018-09-04 2020-03-13 Refractory Intellectual Property Gmbh & Co Kg Procedure for the maintenance of a sliding closure on the pouring of a metallurgical vessel and a sliding closure.
EP3851225A1 (en) * 2020-01-15 2021-07-21 Refractory Intellectual Property GmbH & Co. KG Sliding closure for a metallurgical container

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Also Published As

Publication number Publication date
CA1330248C (en) 1994-06-21
EP0277146B1 (en) 1990-10-31
BR8707428A (en) 1988-11-01
WO1988001211A1 (en) 1988-02-25
EP0277146A1 (en) 1988-08-10
KR880002595A (en) 1988-05-10
KR920001344B1 (en) 1992-02-11
US4848604A (en) 1989-07-18

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