EP1046447B1 - Rotary slide valve plate - Google Patents
Rotary slide valve plate Download PDFInfo
- Publication number
- EP1046447B1 EP1046447B1 EP00104312A EP00104312A EP1046447B1 EP 1046447 B1 EP1046447 B1 EP 1046447B1 EP 00104312 A EP00104312 A EP 00104312A EP 00104312 A EP00104312 A EP 00104312A EP 1046447 B1 EP1046447 B1 EP 1046447B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- valve plate
- gate valve
- sliding gate
- rotary sliding
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/26—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 rotatively movable plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/28—Plates therefor
Definitions
- the invention relates to a rotary valve plate for metallurgical melting vessels.
- so-called Linear slide known (DE 43 39 316 A1, DE 33 07 193 A1, EP 0 529 108 A1).
- Associated pusher systems are as so-called 2-plate rotary valve (EP 0 838 291 A1) and so-called 3-plate rotary valve (EP 0 356 551 B1) known.
- a plate the so-called rotor plate
- Stator plate against a fixed plate
- the rotor plate has two passage openings for a molten metal and can through corresponding angular displacement relative to the stator plate be placed so that an opening with a corresponding opening of the stator plate is aligned (Flow position) or the latter shuts off (blocking position).
- JP 07306756 A Patent Abstracts of Japan, no. 3, 29.03.1996).
- the Insert has a ring shape.
- the ring shape is important because the slide plate must be drilled to receive the insert. At the same time, the width of the insert ring is limited, there between the insert ring and the peripheral surface of the Slider plate on all sides enough matrix material must be available for static reasons.
- FIG. 1 shows schematically that during the throttling process, at least before reaching the Closure position, the molten metal on the low-wear matrix material of the slide plate flows.
- JP 07308756 A is an embodiment with kidney-shaped insert shown.
- the invention is based on the object to offer a rotary valve plate, which increased wear resistance especially during the throttling process and a secure assembly of the insert in the matrix material allows a sliding plate.
- the invention is based on the consideration, the Flow opening symmetrical, annular insert to replace it with an insert that respects its Geometry is designed so that during the throttle process (So long as molten metal through the passage opening flows) only the more wear-resistant use along the passage opening of the stator plate to be led. In other words: it should be prevented be that during the blocking of the passage opening Molten metal on the matrix material of the slide plate arrives.
- a general broadening of the annular insert is not suitable for this, because the one shown in Figure 1 with A. smallest distance between the peripheral surface of the Insert and the peripheral surface of the slide plate in this case would be so small that no safe confectioning the use in the matrix material of the slide plate more would be possible.
- the invention gives up for use a new geometric requirement in that the Use an associated through hole unbalanced surrounds.
- the insert has a circular peripheral surface on.
- the associated passage opening is however arranged eccentrically.
- the insert can be over the entire height of the rotary valve plate extend. But it is also possible to use an insert that exceeds the height of the Rotary valve plate looks at different outer dimensions has, formed, for example stepped is. In this case, the use may, for example or in a corresponding stage alsilia be used, which is through Holes of different diameters in the rotary valve plate train. It is the rejuvenated Diameter preferably in the flow direction of the molten metal below, thereby ensuring that the insert can not break down.
- a Material based on MgO-C can be used as a material for use.
- This, on oxidation-susceptible material can be inventively advantageous for the following reasons: by the inventive arrangement of the insert in the rotary valve plate is the use of all sides vbn a relative surrounded by a broad section of the matrix material, which largely prevents the ingress of atmospheric oxygen. Characterized in that during the throttle process exclusively Areas of wear-resistant use under the passage opening of the associated stator plate be led, also eliminates an air access on the Connection area to the adjacent matrix material.
- FIG. 2 shows a rotary slide plate 10 made of a base body 12, made of a conventional refractory Material (matrix material) consists.
- matrix material 12 In the matrix material 12 are two inserts 14.1, 14.2 made of a wear-resistant Material arranged, each a circular ring shape and each with an eccentric arranged through opening 16.1, 16.2 formed are.
- the center longitudinal axes M of the through openings 16.1, 16.2 are spaced apart by a Symmetry plane S-S of the rotary valve plate 10.
- the arrangement of the insert 14.1 is such that the Section 14.11 counterclockwise essential wider than the section 14.12 clockwise.
- the inserts 14.1, 14.2 are arranged that a minimum distance A between the peripheral surface of each Insert 14.1, 14.2 and the peripheral surface 10u of the rotary valve plate 10 is respected, which is necessary to to be able to safely pick up the inserts 14.1, 14.2.
- the inserts' 14.1, 14.2 formed with a cylindrical peripheral surface and extend continuously from a main surface 10o the rotary valve plate 10 to the opposite main surface (Bottom).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Sliding Valves (AREA)
- Check Valves (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Compressor (AREA)
- Multiple-Way Valves (AREA)
Abstract
Description
Die Erfindung betrifft eine Drehschieberplatte für metallurgische Schmelzgefäße. Daneben sind sogenannte Linearschieber bekannt (DE 43 39 316 A1, DE 33 07 193 A1, EP 0 529 108 A1). Zugehörige Schiebersysteme sind als sogenannte 2-Platten-Drehschieber (EP 0 838 291 A1) und sogenannte 3-Platten-Drehschieber (EP 0 356 551 B1) bekannt.The invention relates to a rotary valve plate for metallurgical melting vessels. In addition, so-called Linear slide known (DE 43 39 316 A1, DE 33 07 193 A1, EP 0 529 108 A1). Associated pusher systems are as so-called 2-plate rotary valve (EP 0 838 291 A1) and so-called 3-plate rotary valve (EP 0 356 551 B1) known.
Dabei wird jeweils eine Platte, die sogenannte Rotorplatte, gegen eine feststehende Platte, die sogenannte Statorplatte, gedreht. Die Rotorplatte weist zwei Durchgangsöffnungen für eine Metallschmelze auf und kann durch entsprechende Winkelverschiebung gegenüber der Statorplatte so gestellt werden, daß eine Öffnung mit einer korrespondierenden Öffnung der Statorplatte fluchtet (Durchflußstellung) oder letztere absperrt (Sperrstellung). In each case, a plate, the so-called rotor plate, against a fixed plate, the so-called Stator plate, turned. The rotor plate has two passage openings for a molten metal and can through corresponding angular displacement relative to the stator plate be placed so that an opening with a corresponding opening of the stator plate is aligned (Flow position) or the latter shuts off (blocking position).
Besonders kritisch ist der Drosselvorgang selbst, wenn die Rotorplatte aus der Durchflußstellung in die Sperrstellung gedreht wird, weil während des Drosselvorgangs die Metallschmelze großflächig mit der Oberfläche der Rotorplatte, benachbart der Durchflußöffnung, in Berührung kommt.Particularly critical is the throttling process itself, if the rotor plate from the flow position into the blocking position is turned because during the throttle process the molten metal over a large area with the surface of the Rotor plate, adjacent to the flow opening, in Touch comes.
Unter anderem zur Verbesserung der Verschleißfestigkeit (aber auch zu Reparaturzwecken) ist es bekannt, im Matrixmaterial der Drehschieberplatte um die Durchflußöffnung herum einen Einsatz aus einem verschleißfesteren Werkstoff anzuordnen. Figur 1 zeigt eine solche Ausführungsform nach dem Stand der Technik (= JP 07306756 A = Patent Abstracts of Japan, no. 3, 29.03.1996). Der Einsatz hat dabei eine Ringform.Among other things, to improve the wear resistance (but also for repair purposes) it is known in the Matrix material of the rotary valve plate around the flow opening around an insert made of a more wear-resistant To arrange material. FIG. 1 shows such an embodiment according to the prior art (= JP 07306756 A = Patent Abstracts of Japan, no. 3, 29.03.1996). Of the Insert has a ring shape.
Die Ringform ist deshalb wichtig, weil die Schieberplatte zur Aufnahme des Einsatzes ausgebohrt werden muß. Gleichzeitig ist die Breite des Einsatzringes begrenzt, da zwischen dem Einsatzring und der Umfangsfläche der Schieberplatte allseitig genügend Matrixmaterial aus statischen Gründen zur Verfügung stehen muß.The ring shape is important because the slide plate must be drilled to receive the insert. At the same time, the width of the insert ring is limited, there between the insert ring and the peripheral surface of the Slider plate on all sides enough matrix material must be available for static reasons.
Daraus folgt, wie Figur 1 schematisch zeigt, daß während des Drosselvorgangs, zumindest vor Erreichen der Verschlußstellung, die Metallschmelze auf das verschleißärmere Matrixmaterial der Schieberplatte strömt. In der JP 07308756 A ist eine Ausführungsform mit nierenförmigem Einsatz dargestellt.It follows, as Figure 1 shows schematically that during the throttling process, at least before reaching the Closure position, the molten metal on the low-wear matrix material of the slide plate flows. In JP 07308756 A is an embodiment with kidney-shaped insert shown.
Entsprechend liegt der Erfindung die Aufgabe zugrunde, eine Drehschieberplatte anzubieten, die eine erhöhte Verschleißfestigkeit insbesondere während des Drosselvorgangs aufweist und eine sichere Konfektionierung des Einsatzes im Matrixmaterial eine Schiebeplatte ermöglicht. Accordingly, the invention is based on the object To offer a rotary valve plate, which increased wear resistance especially during the throttling process and a secure assembly of the insert in the matrix material allows a sliding plate.
Dabei geht die Erfindung von der Überlegung aus, den zur Durchflußöffnung symmetrischen, ringförmigen Einsatz durch einen Einsatz zu ersetzen, der hinsichtlich seiner Geometrie so ausgebildet ist, daß während des Drosselvorgangs (also solange Metallschmelze durch die Durchgangsöffnung fließt) ausschließlich der verschleißfestere Einsatz entlang der Durchgangsöffnung der Statorplatte geführt wird. Mit anderen Worten: es soll verhindert werden daß während der Absperrung der Durchgangsöffnung Metallschmelze auf das Matrixmaterial der Schieberplatte gelangt.The invention is based on the consideration, the Flow opening symmetrical, annular insert to replace it with an insert that respects its Geometry is designed so that during the throttle process (So long as molten metal through the passage opening flows) only the more wear-resistant use along the passage opening of the stator plate to be led. In other words: it should be prevented be that during the blocking of the passage opening Molten metal on the matrix material of the slide plate arrives.
Eine generelle Verbreiterung des ringförmigen Einsatzes ist dazu nicht geeignet, weil der in Figur 1 mit A dargestellte kleinste Abstand zwischen der Umfangsfläche des Einsatzes und der Umfangsfläche der Schieberplatte in diesem Fall so klein würde, daß keine sichere Konfektionierung des Einsatzes im Matrixmaterial der Schieberplatte mehr möglich wäre.A general broadening of the annular insert is not suitable for this, because the one shown in Figure 1 with A. smallest distance between the peripheral surface of the Insert and the peripheral surface of the slide plate in this case would be so small that no safe confectioning the use in the matrix material of the slide plate more would be possible.
Ausgehend von einer bekannten Drehschieberplatte aus einem feuerfesten keramischen Matrixmaterial mit den Merkmalen a - d des Hauptanspruchs besteht die erfindungsgemäße Weiterbildung in den Merkmalen e - g von Anspruch 1.Starting from a known rotary valve plate a refractory ceramic matrix material with the Features a - d of the main claim is the inventive Training in the features e - g of Claim 1.
Mit anderen Worten: die Erfindung gibt für den Einsatz eine neue geometrische Vorgabe dahingehend, daß der Einsatz eine zugehörige Durchgangsöffnung unsymmetrisch umgibt. In other words, the invention gives up for use a new geometric requirement in that the Use an associated through hole unbalanced surrounds.
Dabei liegt, entsprechend der obengenannten Vorgabe, der "breitere" Abschnitt des Einsatzes auf der zur Drehrichtung der Schieberplatte abgewandten Seite. Bei dieser Ausführungsform, die in Figur 2 schematisch dargestellt ist, wird erreicht, daß während des gesamten Absperrvorgangs Stahlschmelze ausschließlich auf das verschleißfestere Material des Einsatzes fließen kann und erst nach vollständiger Sperrstellung und weiterer Bewegung der Drehschieberplatte das Matrixmaterial der Drehschieberplatte in den Bereich der Durchgangsöffnung der zugehörigen Statorplatte gelangt.It is, according to the above specification, the "wider" section of the insert on the direction of rotation the slide plate facing away. At this Embodiment, which is shown schematically in Figure 2 is achieved that throughout the shut-off process Molten steel exclusively on the more wear-resistant Material of the insert can flow and only after complete blocking position and further movement of the Rotary valve plate, the matrix material of the rotary valve plate in the region of the passage opening of the associated Stator plate arrives.
Daraus ergibt sich, daß der Einsatz, bezogen auf seine Durchgangsöffnung, "zur Mitte der Drehschieberplatte hin" exzentrisch eingesetzt ist.It follows that the use, based on his Through-hole, "towards the middle of the rotary valve plate" is used eccentrically.
Dabei kann der gewünschte Mindestabstand A zur Umfangsfläche der Drehschieberplatte eingehalten werden. Der Einsatz wird zwar insgesamt vergrößer, aufgrund seiner exzentrischen Anordnung aber "zur Mitte der Schieberplatte hin" verschoben, wobei gleichzeitig sichergestellt wird, daß auch bei dieser Ausführungsform, unabhängig von der Drehrichtung der Drehschieberplatte, während des gesamten Drosselvorgangs ausschließlich das verschleißfestere Einsatzmaterial in den Bereich der Durchgangsöffnung der darüberliegenden Statorplatte gelangt. It can be the desired Minimum distance A to the peripheral surface of the rotary valve plate be respected. The mission is indeed increased overall, but due to its eccentric arrangement shifted "to the middle of the slide plate", wherein At the same time it is ensured that also in this Embodiment, regardless of the direction of rotation of the Rotary valve plate, during the entire throttle process only the more wear-resistant feed material in the area of the passage opening of the overlying Stator plate arrives.
Im vorgenannten Fall weist der Einsatz eine kreisrunde Umfangsfläche auf. Die zugehörige Durchgangsöffnung ist jedoch exzentrisch angeordnet. Auf diese Weise kann der Einsatz, wie im Stand der Technik, in eine entsprechende Bohrung der Drehschieberplatte leicht eingesetzt und dort beispielsweise eingemörtelt werden. Ebenso ist es möglich, die entsprechend vorbereitete Drehschieberplatte und den Einsatz gemeinsam, also fugenlos, zu verpressen.In the aforementioned case, the insert has a circular peripheral surface on. The associated passage opening is however arranged eccentrically. To this Way, the use, as in the prior art, in a corresponding hole of the rotary valve plate easily used and there, for example, be mortared. It is also possible to prepare the accordingly prepared Rotary valve plate and the insert together, so seamless, to press.
Dabei ist stets darauf zu achten, daß die Oberfläche des Einsatzes fluchtend mit der Oberfläche des benachbarten Matrixmaterials ist, und zwar insbesondere auf dem Flächenabschnitt, der mit einer zugehörigen Statorplatte zum Absperren zusammenwirkt. Soweit dies nicht schon herstellungsmäßig möglich ist, kann eine fertig konfektionierte Drehschieberplatte anschließend auch im Oberflächenbereich nachgeschliffen werden.It is always important to ensure that the surface of the Insert flush with the surface of the adjacent Matrix material is, in particular on the Surface portion associated with an associated stator plate cooperates to shut off. If not already manufacture wise is possible, a ready-made Rotary slide plate subsequently also in the surface area be reground.
Der Einsatz kann sich über die gesamte Höhe der Drehschieberplatte erstrecken. Ebenso ist es aber auch möglich, einen Einsatz zu verwenden, der über die Höhe der Drehschieberplatte betrachtet unterschiedliche Außenabmessungen aufweist, beispielsweise abgestuft ausgebildet ist. In diesem Fall kann der Einsatz beispielsweise auf beziehungsweise in eine entsprechende Stufe aufbeziehungsweise eingesetzt werden, die sich durch Bohrungen unterschiedlicher Durchmesser in der Drehschieberplatte ausbilden läßt. Dabei wird der verjüngte Durchmesser vorzugsweise in Strömungsrichtung der Metallschmelze unten liegen, wodurch sichergestellt wird, daß der Einsatz nicht nach unten durchbrechen kann. The insert can be over the entire height of the rotary valve plate extend. But it is also possible to use an insert that exceeds the height of the Rotary valve plate looks at different outer dimensions has, formed, for example stepped is. In this case, the use may, for example or in a corresponding stage aufbeziehungsweise be used, which is through Holes of different diameters in the rotary valve plate train. It is the rejuvenated Diameter preferably in the flow direction of the molten metal below, thereby ensuring that the insert can not break down.
Als Werkstoff für den Einsatz kann beispielsweise ein Werkstoff auf Basis MgO-C verwendet werden. Dieser, an sich oxidationsanfällige Werkstoff läßt sich erfindungsgemäß aus folgenden Gründen vorteilhaft einsetzen: durch die erfindungsgemäße Anordnung des Einsatzes in der Drehschieberplatte ist der Einsatz allseitig vbn einem relativ breiten Abschnitt des Matrixmaterials umgeben, welches den Zutritt von Luftsauerstoff weitestgehend verhindert. Dadurch, daß während des Drosselvorgangs ausschließlich Bereiche des verschleißfesteren Einsatzes unter die Durchgangsöffnung der zugehörigen Statorplatte geführt werden, entfällt auch ein Luftzutritt über den Anschlußbereich zum benachbarten Matrixmaterial.As a material for use, for example, a Material based on MgO-C can be used. This, on oxidation-susceptible material can be inventively advantageous for the following reasons: by the inventive arrangement of the insert in the rotary valve plate is the use of all sides vbn a relative surrounded by a broad section of the matrix material, which largely prevents the ingress of atmospheric oxygen. Characterized in that during the throttle process exclusively Areas of wear-resistant use under the passage opening of the associated stator plate be led, also eliminates an air access on the Connection area to the adjacent matrix material.
Nachstehend wird die Figur 2, die schematische eine Aufsicht auf eine Drehschieberplatte zeigt, ergänzend erläutert.Below is the figure 2, the schematic a plan view of a rotary valve plate shows, explained in addition.
Figur 2 zeigt eine Drehschieberplatte 10 aus einem Grundkörper
12, der aus einem konventionellen feuerfesten
Werkstoff (Matrixmaterial) besteht. Im Matrixmaterial 12
sind zwei Einsätze 14.1, 14.2 aus einem verschleißfesteren
Werkstoff angeordnet, die jeweils eine Kreisringform
aufweisen und jeweils mit einer exzentrisch
angeordneten Durchgangsöffnung 16.1, 16.2 ausgebildet
sind.FIG. 2 shows a
Die Mittenlängsachsen M der Durchgangsöffnungen 16.1,
16.2 verlaufen im Abstand zueinander durch eine
Symmetrieebene S-S der Drehschieberplatte 10. The center longitudinal axes M of the through openings 16.1,
16.2 are spaced apart by a
Symmetry plane S-S of the
Die Anordnung des Einsatzes 14.1 ist derart, daß der Abschnitt 14.11 entgegen dem Uhrzeigersinn wesentlich breiter ist als der Abschnitt 14.12 im Uhrzeigersinn.The arrangement of the insert 14.1 is such that the Section 14.11 counterclockwise essential wider than the section 14.12 clockwise.
Genauso sind die Verhältnisse beim Einsatz 14.2.Likewise, the conditions in use 14.2.
In jedem Fall sind die Einsätze 14.1, 14.2 so angeordnet,
daß ein Mindestabstand A zwischen der Umfangsfläche jedes
Einsatzes 14.1, 14.2 und der Umfangsfläche 10u der Drehschieberplatte
10 eingehalten wird, der notwendig ist, um
die Einsätze 14.1, 14.2 sicher aufnehmen zu könnten.In any case, the inserts 14.1, 14.2 are arranged
that a minimum distance A between the peripheral surface of each
Insert 14.1, 14.2 and the peripheral surface 10u of the
Im dargestellten Ausführungsbeispiel sind die Einsätze'
14.1, 14.2 mit zylindrischer Umfangsfläche ausgebildet
und verlaufen durchgehend von einer Haupt-Oberfläche 10o
der Drehschieberplatte 10 zur gegenüberliegenden Haupt-Oberfläche
(Unterseite).In the illustrated embodiment, the inserts'
14.1, 14.2 formed with a cylindrical peripheral surface
and extend continuously from a main surface 10o
the
In der Durchflußstellung befindet sich eine zugehörige, nicht dargestellte Statorplatte in einer Position, bei der ihre Durchgangsöffnung mit der Durchgangsöffnung 16.1 fluchtet.In the flow position is an associated, not shown stator in a position at the passage opening with the passage opening 16.1 flees.
Wird die Drehschieberplatte 10 im Uhrzeigersinn (Pfeil D)
gedreht, wird der Abschnitt 14.11 des Einsatzes 14.1 in
den Bereich der Durchgangsöffnung der Statorplatte
verschoben. Es gelangt nun Metallschmelze auf die
Oberfläche des Einsatzes 14.1. Die Metallschmelze kann
erfindungsgemäß aber auch nur auf die Oberfläche des
verschleißfesten Einsatzes 14.1 gelangen, und zwar
während des gesamten Drosselvorgangs, also bis die Durchgangsöffnung
der Statorplatte vollständig vom Einsatz
14.1 abgedeckt ist, wodurch die Verschleißfestigkeit des
Drehschiebers insgesamt wesentlich erhöht wird. Erst
danach (bei weiterer Drehung der Drehschieberplatte 10)
wird das weniger verschleißfeste Matrixmaterial 12 unter
die Durchgangsöffnung der Statorplatte geführt.If the
Bei Aufrechterhaltung der Drehrichtung wird die nächste Durchflußstellung erreicht, sobald der Einsatz 14.2 mit seiner Durchgangsöffnung 16.2 unter die Durchgangsöffnung der Statorplatte geführt wurde.Keeping the direction of rotation will be the next Flow position reached when the use 14.2 with its passage opening 16.2 below the passage opening the stator plate was guided.
Claims (3)
- A rotary sliding gate valve plate (10) made from a refractory ceramic matrix material (12), havinga) two through openings (16.1, 16.2), which extend between two main surfaces (10o), for a molten metal, where longitudinal centre axes (M) of the through openings (16.1, 16.2) extend along a plane of symmetry (S-S) of the rotary sliding gate valve plate, andb) at least one insert (14.1, 14.2) which is let into the matrix material (12) and is made from a material which is more resistant to wear than the matrix material (12), wherec) the insert (14.1, 14.2) surrounds an associated through opening (16.1, 16.2) on all sides at least in the region of a main surface (10o) of the rotary sliding gate valve plate (10) and is flush with this main surface (10o), andd) the insert (14.1, 14.2) has a circular outline,
characterised in thate) the through opening (16.1, 16.2) is arranged eccentrically in the insert (14.1, 14.2),f) the insert (14.1, 14.2) has in its portion (14.11, 14.13, 14.14) turned away from the direction of rotation D of the rotary sliding gate valve plate (10), between the edge of the through opening (16.1, 16.2) and its corresponding outer edge, a width which is equal to or greater than the diameter of the through opening (16.1, 16.2), andg) the insert (14.1, 14.2) is displaced towards the centre of the rotary sliding gate valve plate such that the minimum spacing A between the insert (14.1, 14.2) and the peripheral surface of the rotary sliding gate valve plate is larger than would be the case for an insert of the same size having a central through opening. - A rotary sliding gate valve plate according to Claim 1, in which the insert (14.1, 14.2) extends over the entire depth of the rotary sliding gate valve plate.
- A rotary sliding gate valve plate according to Claim 2, in which the insert has varying external dimensions as seen over the depth of the rotary sliding gate valve plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19917851A DE19917851C2 (en) | 1999-04-21 | 1999-04-21 | Rotary valve plate |
| DE19917851 | 1999-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1046447A1 EP1046447A1 (en) | 2000-10-25 |
| EP1046447B1 true EP1046447B1 (en) | 2005-08-17 |
Family
ID=7905213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00104312A Expired - Lifetime EP1046447B1 (en) | 1999-04-21 | 2000-03-02 | Rotary slide valve plate |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1046447B1 (en) |
| AT (1) | ATE302079T1 (en) |
| DE (2) | DE19917851C2 (en) |
| ES (1) | ES2246198T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619513A (en) * | 2011-07-08 | 2014-03-05 | 里弗雷克特里知识产权两合公司 | Refractory ceramic slide plate and associated slide plate set |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097899A (en) * | 2016-11-24 | 2018-06-01 | 丹阳市宏光机械有限公司 | A kind of hollow steel-ingot casting mould tool |
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|---|---|---|---|---|
| DE3307193C2 (en) * | 1983-03-01 | 1986-04-17 | VGT AG, 3432 Großalmerode | Fireproof gate |
| EP0356551B1 (en) * | 1988-08-31 | 1992-03-25 | Metacon AG | Set of ceramic plates for sliding gate valves comprising three sliding plates |
| DE59103128D1 (en) * | 1991-07-26 | 1994-11-03 | Schladofsky Leopold Dipl Ing F | Slider closure on metallurgical vessels. |
| DE4339316C2 (en) * | 1993-04-03 | 1996-11-14 | Schladofsky Leopold Dipl Ing F | Fireproof closure plate for slide closures on metallurgical vessels such as ladles and on distribution channels for molten metals and method for producing the closure plate |
| JPH07308756A (en) * | 1994-05-18 | 1995-11-28 | Tokyo Yogyo Co Ltd | Sliding nozzle plate |
| JP3278797B2 (en) * | 1996-02-27 | 2002-04-30 | 日本鋼管株式会社 | Brick for rotary nozzle and rotary nozzle |
-
1999
- 1999-04-21 DE DE19917851A patent/DE19917851C2/en not_active Expired - Lifetime
-
2000
- 2000-03-02 AT AT00104312T patent/ATE302079T1/en not_active IP Right Cessation
- 2000-03-02 ES ES00104312T patent/ES2246198T3/en not_active Expired - Lifetime
- 2000-03-02 EP EP00104312A patent/EP1046447B1/en not_active Expired - Lifetime
- 2000-03-02 DE DE50010948T patent/DE50010948D1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619513A (en) * | 2011-07-08 | 2014-03-05 | 里弗雷克特里知识产权两合公司 | Refractory ceramic slide plate and associated slide plate set |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE302079T1 (en) | 2005-09-15 |
| DE19917851C2 (en) | 2003-04-10 |
| ES2246198T3 (en) | 2006-02-16 |
| DE19917851A1 (en) | 2000-10-26 |
| EP1046447A1 (en) | 2000-10-25 |
| DE50010948D1 (en) | 2005-09-22 |
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