EP0529108A1 - Slide gate nozzle for metallurgical vessels - Google Patents
Slide gate nozzle for metallurgical vessels Download PDFInfo
- Publication number
- EP0529108A1 EP0529108A1 EP91112562A EP91112562A EP0529108A1 EP 0529108 A1 EP0529108 A1 EP 0529108A1 EP 91112562 A EP91112562 A EP 91112562A EP 91112562 A EP91112562 A EP 91112562A EP 0529108 A1 EP0529108 A1 EP 0529108A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slide
- plate
- wear
- top plate
- wear ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 8
- 239000000155 melt Substances 0.000 description 5
- 238000009749 continuous casting Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000011224 oxide ceramic Substances 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
Images
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
- B22D41/28—Plates therefor
Definitions
- the invention relates to a slide closure on metallurgical vessels with a refractory slide top plate with at least one flow opening and a highly heat-resistant insert which surrounds the flow opening.
- ladles and / or distribution vessels in the floor area are equipped with one or more slide closures which consist of several plates which can be moved relative to one another and with the aid of which the outflow quantity of the liquid metal into one or more molds is controlled.
- Slider closures for controlling the outflow of a molten metal are known in the prior art. These slide closures consist of a set of refractory plates provided with outlet openings which are held in mutual contact. These plates are movable relative to one another in order to enable or block the melt flow or to influence the flow rate.
- a generic slide closure consists of a slide top plate and a slide closure plate. The slide top plate is fixed under a pouring vessel at the pouring opening. The slide closure plate is slidably arranged under the slide upper plate.
- Another generic slide closure consists of a slide top plate, a slide middle plate and a slide bottom plate. The slide top plate is also fixed with the slide bottom plate under the outlet opening of the casting vessel so that the outlet openings are aligned with each other.
- the slide middle plate is between the slide upper plate and the Slider bottom plate slidably mounted so that the metal flow can be controlled.
- the slide closure plate is arranged rotatably or pivotably. For safety reasons and to avoid leakages, devices are available which keep the plates in effective mutual contact, the slide center plate or closure plate remaining displaceable.
- slide closures are preferably fastened by wedge locks for easier assembly under casting vessels or distribution channels.
- the flow opening of the upper slide plate is washed out at its lower end.
- the lower end of the flow opening of the slide top plate serves as a so-called control edge at which the flow rate of the liquid metal is determined.
- the washouts at the lower flow opening the slide top plate fill with liquid steel during casting and lead to jamming, so that the slide middle plate can no longer be moved.
- Another disadvantage is that after the casting has been stopped, the liquid steel freezes at the washouts and, together with the plug that has also been frozen in the pouring sleeve of the distribution vessel and the slide upper plate, firmly connects the slide upper plate to the pouring sleeve.
- Refractory panels of the specified type consist of a base made of refractory refractory concrete and an oxide ceramic insert.
- the oxide-ceramic insert extends only over part of the base body, so that the pouring jet could infiltrate the insert and damage the base body.
- the production of the plates is comparatively complex because the complete plate with base body and insert must be exchanged in each case
- ring inserts made of wear-resistant refractory material are used in the openings of the fixed plate which are washed out by the flowing steel.
- the wear parts repaired in this way only have a relatively short service life because the refractory casting or ramming compound of the base body tears both on the surface and inside due to insufficient elasticity.
- the ring inserts are backwashed by the flowing steel, so that the entire plate must be replaced.
- the invention solves this problem in that a highly heat-resistant insert consisting of an upper wear part and a lower wear ring, which surrounds the wear part at its annular lower recess, is inserted into the slide top plate, the inner lower edge of the wear part forming the standard edge.
- a slide top plate 1 is shown only partially with a highly heat-resistant insert A consisting of a wearing part 2 and a flow 3 and a lower recess 4 and the control edge 5 and a wear ring 6.
- a slide center plate 7 with the flow opening 3 ' is only shown schematically.
- the slide closure is used with the annular bead 8 of the slide top plate 1 in the outflow opening of the distributor vessel or the ladle.
- the liquid metal flows through the flow 3.
- the slide center plate 7 assumes a throttle position and controls the amount of melt at the control edge 5.
- the wearing part 2 and the wear ring 6 are washed out on one side in the case of single-edge control and on both sides in the case of double-edge control in the sliding direction of the center plate 7.
- the slide center plate 7 is pushed into the closed position and the stagnating melt flows under the washed-out points on the regular edge 5 of the wearing part 2 and the wearing ring 6 and solidifies together with the melt in the flow 3.
- the wearing part 2 When dismantling the slide closure from the bottom of the distributor vessel or from the bottom of the ladle, the wearing part 2 according to the invention detaches from the top slide plate 1 and remains together with the solidified melt on the outlet opening of the distributor vessel or on the outlet of the ladle.
- the wear ring 6 damaged by the melt can now be easily removed downward from the slide top plate 1 without destroying it.
- the wearing part of the insert A is inserted from above into the base body of the upper slide plate and glued to the wear ring 6, which is inserted from below into a corresponding recess in the upper slide plate 1.
- Fig. 2 shows the wear part 2 of the highly heat-resistant insert A with the annular recess 4 for receiving the wear ring 6 of the insert A.
- the wear part 2 detaches from the slide top plate 1 and remains with the melt which solidifies in it as a stopper prevents the melt from flowing out of the tundish, hang on the bottom of the tundish or on the bottom of the ladle.
- the wearing part 2 can be easily removed together with the solidified melt by simply knocking it off the bottom of the distributor vessel or the ladle.
- a new wear part 2 is inserted into the top plate of the slide and glued to the wear ring 6 to be inserted from below.
- Fig. 3 shows a new wear ring 6 with a one-sided elliptical magnification 6 'for single-edge control in continuous casting.
- Fig. 4 shows a wear ring 6 with diametrically opposite elliptical magnifications 6 'for a two-edge control in continuous casting.
- the slide upper plate 1 can be prepared in place in a simple manner in steelworks operation, avoiding cumbersome repair work for a new casting.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Schieberverschluß an metallurgischen Gefäßen mit einer feuerfesten Schieberoberplatte mit wenigstens einer Durchflußöffnung und einem hochhitzebeständigen Einsatz, der die Durchflußöffnung umgibt. Insbesondere beim Stranggießen von Stahl und anderen Metallen sind Gießpfannen und/oder Verteilergefäße im Bodenbereich mit einem oder mehreren Schieberverschlüssen ausgestattet, die aus mehreren, gegeneinander beweglichen Platten bestehen, mit deren Hilfe die Ausflußmenge des flüssigen Metalls in eine oder mehrere Kokillen gesteuert wird.The invention relates to a slide closure on metallurgical vessels with a refractory slide top plate with at least one flow opening and a highly heat-resistant insert which surrounds the flow opening. In the continuous casting of steel and other metals in particular, ladles and / or distribution vessels in the floor area are equipped with one or more slide closures which consist of several plates which can be moved relative to one another and with the aid of which the outflow quantity of the liquid metal into one or more molds is controlled.
Schieberverschlüsse zum Steuern des Ausflusses einer Metallschmelze sind im Stand der Technik bekannt. Diese Schieberverschlüsse bestehen aus einem Satz von mit Auslaßöffnungen versehenen feuerfesten Platten, die in gegenseitiger Anlage gehalten sind. Diese Platten sind relativ zueinander beweglich, um den Schmelzfluß zu ermöglichen bzw. zu sperren oder die Durchflußmenge zu beeinflussen. Ein gattungsgemäßer Schieberverschluß besteht aus einer Schieberoberplatte und einer Schieberverschlußplatte. Die Schieberoberplatte ist ortsfest unter einem Gießgefäß an der Gießöffnung angebracht. Die Schieberverschlußplatte ist unter der Schieberoberplatte verschiebbar angeordnet. Ein anderer gattungsgemäßer Schieberverschluß besteht aus einer Schieberoberplatte, einer Schiebermittelplatte und einer Schieberunterplatte. Die Schieberoberplatte ist ebenfalls ortsfest mit der Schieberunterplatte unter der Auslaßöffnung des Gießgefäßes so angebracht, daß die Auslaßöffnungen miteinander fluchten. Die Schiebermittelplatte ist zwischen der Schieberoberplatte und der Schieberunterplatte gleitend gelagert, sodaß der Metallfluß gesteuert werden kann. Bei anderen bekannten Schieberverschlüssen ist die Schieberverschlußplatte dreh- bzw. schwenkbar angeordnet. Aus Sicherheitsgründen und um Leckagen zu vermeiden, sind Einrichtungen vorhanden, welche die Platten in wirksamem gegenseitigen Kontakt halten, wobei die Schiebermittelplatte bzw. Verschlußplatte verschiebbar bleibt.Slider closures for controlling the outflow of a molten metal are known in the prior art. These slide closures consist of a set of refractory plates provided with outlet openings which are held in mutual contact. These plates are movable relative to one another in order to enable or block the melt flow or to influence the flow rate. A generic slide closure consists of a slide top plate and a slide closure plate. The slide top plate is fixed under a pouring vessel at the pouring opening. The slide closure plate is slidably arranged under the slide upper plate. Another generic slide closure consists of a slide top plate, a slide middle plate and a slide bottom plate. The slide top plate is also fixed with the slide bottom plate under the outlet opening of the casting vessel so that the outlet openings are aligned with each other. The slide middle plate is between the slide upper plate and the Slider bottom plate slidably mounted so that the metal flow can be controlled. In other known slide closures, the slide closure plate is arranged rotatably or pivotably. For safety reasons and to avoid leakages, devices are available which keep the plates in effective mutual contact, the slide center plate or closure plate remaining displaceable.
Vorzugsweise sind diese Schieberverschlüsse zur leichteren Montage unter Gießgefäßen bzw. Verteilerrinnen durch Keilverschluß befestigt.These slide closures are preferably fastened by wedge locks for easier assembly under casting vessels or distribution channels.
Aus der DE-PS 34 34 857 ist es bekannt, bei Schieberverschlüssen für den Ausguß metallurgischer Gefäße die linear verschiebbar, dreh- oder schwenkbar gelagerte feuerfeste Schieberplatte mit einem Verschleißeinsatz in der Durchflußöffnung zu versehen. Es ist weiterhin bekannt, den bzw. die Wechselausgüsse unterhalb der Schieberplatte an ihren oberen Enden mit Verschleißeinsätzen auszurüsten. So ausgebildete Schieberverschlüsse sehen vor, den Verschleißeinsatz der Schieberplatte zusammen mit dem Wechselausguß auch bei noch heißem metallurgischen Gefäß von außen zu erneuern, ohne daß der Schieberverschluß demontiert werden muß. Beim Einsatz eines Schieberverschlusses unter einer Verteilerrinne im Stranggußbetrieb muß der Schieberverschluß bei jedem Gießprogrammwechsel hochwertiger Stahlgüten vollständig von der Verteilerrinne demontiert werden. Die Demontage des Schieberverschlusses ist jedoch mit erheblichen Problemen behaftet.From DE-PS 34 34 857 it is known to provide the linearly displaceable, rotatable or pivotable refractory slide plate with a wear insert in the flow opening in slide closures for the pouring of metallurgical vessels. It is also known to equip the interchangeable spout (s) below the slide plate with wear inserts at their upper ends. Slider closures designed in this way envisage renewing the wear insert of the slider plate together with the interchangeable spout from the outside even when the metallurgical vessel is still hot, without the slider closure having to be dismantled. When using a slide closure under a distributor trough in continuous casting operation, the slide closure must be completely removed from the distributor trough each time the casting program changes high-quality steel grades. The dismantling of the slide closure is associated with considerable problems.
Bei den gattungsgemäßen Schieberverschlüssen wird die Durchflußöffnung der Schieberoberplatte an ihrem unteren Ende ausgewaschen. Das untere Ende der Durchflußöffnung der Schieberoberplatte dient als sogenannte Regelkante, an der die Durchflußmenge des flüssigen Metalls bestimmt wird. Die Auswaschungen an der unteren Durchflußöffnung der Schieberoberplatte füllen sich während des Gießens mit flüssigem Stahl und führen zu Verklemmungen, sodaß die Schiebermittelplatte sich nicht mehr bewegen läßt. Ein weiterer Nachteil ist darin zu sehen, daß nach Gießabbruch der flüssige Stahl an den Auswaschungen einfriert und zusammen mit dem ebenfalls eingefrorenen Pfropfen in der Ausgießhülse des Verteilergefäßes und der Schieberoberplatte die Schieberoberplatte mit der Ausgießhülse fest verbindet. Beim Lösen der Schieberoberplatte vom Verteilerboden mit Hilfe von Brechstangen wird sehr häufig der Pfropfen in der Ausgießhülse oder die Ausgießhülse selbst aus dem Verteilerboden herausgerissen, sodaß Reststahl aus der Verteilerrinne auf die Ofenbühne fließt und/oder den gesamten Schieberverschluß eingießt. Ein weiterer Nachteil ist darin zu sehen, daß beim Arbeiten mit Brechstangen die Schieberoberplatte durch Verkanten zerstört wird.In the generic slide closures, the flow opening of the upper slide plate is washed out at its lower end. The lower end of the flow opening of the slide top plate serves as a so-called control edge at which the flow rate of the liquid metal is determined. The washouts at the lower flow opening the slide top plate fill with liquid steel during casting and lead to jamming, so that the slide middle plate can no longer be moved. Another disadvantage is that after the casting has been stopped, the liquid steel freezes at the washouts and, together with the plug that has also been frozen in the pouring sleeve of the distribution vessel and the slide upper plate, firmly connects the slide upper plate to the pouring sleeve. When the upper slide plate is released from the distributor base with the help of crowbars, the plug in the pouring sleeve or the pouring sleeve itself is very often torn out of the distributor base, so that residual steel flows from the distributor channel onto the furnace platform and / or pours the entire slide closure. Another disadvantage is that when working with crowbars, the slide top plate is destroyed by tilting.
Feuerfeste Platten der angegebenen Art bestehen aus einem Grundkörper aus feuerfestem Feuerbeton und einem oxidkeramischen Einsatz. Bei solchen bekannten Platten erstreckt sich der oxidkeramische Einsatz nur über einen Teil des Grundkörpers, sodaß der Gießstrahl den Einsatz unterwandern konnte und den Grundkörper beschädigte. Die Herstellung der Platten ist vergleichsweise aufwendig, weil jeweils die vollständige Platte mit Grundkörper und Einsatz ausgetauscht werden muß`Refractory panels of the specified type consist of a base made of refractory refractory concrete and an oxide ceramic insert. In such known plates, the oxide-ceramic insert extends only over part of the base body, so that the pouring jet could infiltrate the insert and damage the base body. The production of the plates is comparatively complex because the complete plate with base body and insert must be exchanged in each case
Bei einem anderen bekannten Reparaturverfahren werden in die vom durchfließenden Stahl ausgewaschenen Öffnungen der feststehenden Platte Ringeinsätze aus verschleißfestem feuerfesten Material eingesetzt. Die so reparierten Verschleißteile haben aber nur eine verhältnismäßig kurze Standzeit, weil die feuerfeste Gieß- oder Stampfmasse des Grundkörpers aufgrund ungenügender Elastizität sowohl an der Oberfläche als auch im Innern reißt. Außerdem werden die Ringeinsätze vom durchfließenden Stahl hinterspült, sodaß die vollständige Platte ausgetauscht werden muß.In another known repair method, ring inserts made of wear-resistant refractory material are used in the openings of the fixed plate which are washed out by the flowing steel. The wear parts repaired in this way only have a relatively short service life because the refractory casting or ramming compound of the base body tears both on the surface and inside due to insufficient elasticity. In addition, the ring inserts are backwashed by the flowing steel, so that the entire plate must be replaced.
Es ist Aufgabe der Erfindung, einen Schieberverschluß mit einer Schieberoberplatte zu schaffen, die leicht vom Verteilerboden lösbar ist, ohne daß die Restschmelze aus der Verteilerrinne ausläuft oder die Schieberoberplatte zerstört wird.It is an object of the invention to provide a slide closure with a slide top plate which is easily detachable from the distributor base without the residual melt escaping from the distributor channel or the slide top plate being destroyed.
Die Erfindung löst diese Aufgabe dadurch, daß in die Schieberoberplatte ein hochhitzebeständiger Einsatz aus einem oberen Verschleißteil und einem unteren Verschleißring, der das Verschleißteil an seiner ringförmigen unteren Aussparung abdichtend umgreift, eingesetzt ist, wobei die innere Unterkante des Verschleißteils die Regelkante bildet.The invention solves this problem in that a highly heat-resistant insert consisting of an upper wear part and a lower wear ring, which surrounds the wear part at its annular lower recess, is inserted into the slide top plate, the inner lower edge of the wear part forming the standard edge.
Mit dieser Lösung ist es möglich, die Schieberoberplatte so vom Verteilerboden der Verteilerrinne abzuziehen, daß der Verschleißteil mit dem eingefrorenen Metallpfropfen haften und die Durchflußöffnung der Verteilerrinne verschlossen bleibt. Es ist darüber hinaus sehr vorteilhaft, daß die Schieberoberplatte durch einfaches Einsetzen eines neuen Verschleißteiles und eines neuen Verschleißringes wiederverwendbar ist und somit die Standzeit der Schieberoberplatte erheblich verlängert wird.With this solution, it is possible to pull off the slide top plate from the distributor base of the distributor channel in such a way that the wearing part adheres to the frozen metal plug and the throughflow opening of the distributor channel remains closed. It is also very advantageous that the slide top plate can be reused by simply inserting a new wear part and a new wear ring and thus the service life of the slide top plate is considerably extended.
Die Patentansprüche 2 bis 4 geben weitere vorteilhafte Lösungen der gestellten Aufgabe der Erfindung an.The
Einzelheiten der Erfindung werden nachstehend anhand der Zeichnungen erläutert.
- Fig. 1
- zeigt eine Schieberoberplatte mit einem neuen hochhitzebeständigen Einsatz im Schnitt,
- Fig. 2
- ein teilweise geschnittenes Verschleißteil nach der Erfindung,
- Fig. 3
- einen Verschleißring nach der Erfindung mit einseitiger elliptischer Vergrößerung,
- Fig. 4
- einen Verschleißring nach Fig. 3 mit zweiseitiger elliptischer Vergrößerung.
- Fig. 1
- shows a slide top plate with a new, highly heat-resistant insert in section,
- Fig. 2
- a partially cut wearing part according to the invention,
- Fig. 3
- a wear ring according to the invention with one-sided elliptical magnification,
- Fig. 4
- 3 with double-sided elliptical enlargement.
In Fig. 1 ist eine nur teilweise dargestellte Schieberoberplatte 1 mit einem hochhitzebeständigen Einsatz A bestehend aus einem Verschleißteil 2 und einem Durchfluß 3 und einer unteren Aussparung 4 sowie der Regelkante 5 und einem Verschleißring 6 wiedergegeben. Eine Schiebermittelplatte 7 mit der Durchflußöffnung 3' ist nur schematisch dargestellt. Der Schieberverschluß wird mit dem Ringwulst 8 der Schieberoberplatte 1 in die Ausflußöffnung des Verteilergefäßes oder der Gießpfanne eingesetzt. Während des Gießens fließt das flüssige Metall durch den Durchfluß 3. Um das Gleichgewicht zwischen der fließenden Schmelzmenge und dem Füllstand der Kokille aufrecht zu erhalten, nimmt die Schiebermittelplatte 7 eine Drosselstellung ein und steuert die Schmelzemenge an der Regelkante 5. Durch das Drosseln der Schmelzmenge an der Regelkante 5 wird das Verschleißteil 2 sowie der Verschleißring 6 bei Einkantenregelung an einer Seite und bei Zweikantenregelung jeweils in Schieberichtung der Mittelplatte 7 an zwei Seiten ausgewaschen. Bei Gießprogrammwechsel oder bei Gießabbruch wird die Schiebermittelplatte 7 in Schließstellung geschoben und die stagnierende Schmelze unterfließt die ausgewaschenen Stellen an der Regelkante 5 des Verschleißteils 2 sowie den Verschleißring 6 und erstarrt zusammen mit der Schmelze im Durchfluß 3.In Fig. 1, a slide top plate 1 is shown only partially with a highly heat-resistant insert A consisting of a wearing
Bei der Demontage des Schieberverschlusses vom Boden des Verteilergefäßes oder vom Boden der Gießpfanne löst sich das erfindungsgemäße Verschleißteil 2 aus der Schieberoberplatte 1 und bleibt zusammen mit der erstarrten Schmelze an der Ausflußöffnung des Verteilergefäßes oder am Ausfluß der Gießpfanne hängen. Der durch die Schmelze beschädigte Verschleißring 6 läßt sich nunmehr leicht nach unten aus der Schieberoberplatte 1 entfernen, ohne diese zu zerstören.When dismantling the slide closure from the bottom of the distributor vessel or from the bottom of the ladle, the wearing
Für die erneute Verwendung des Schieberverschlusses wird das Verschleißteil des Einsatzes A von oben in den Grundkörper der Schieberoberplatte eingeschoben und mit dem Verschleißring 6, der von unten in eine entsprechende Aussparung der Schieberoberplatte 1 eingesetzt ist, verklebt.To use the slide closure again, the wearing part of the insert A is inserted from above into the base body of the upper slide plate and glued to the
Fig. 2 zeigt das Verschleißteil 2 des hochhitzebeständigen Einsatzes A mit der ringförmigen Aussparung 4 für die Aufnahme des Verschleißringes 6 des Einsatzes A. Bei der Demontage des Schieberverschlusses löst sich das Verschleißteil 2 aus der Schieberoberplatte 1 und bleibt mit der in ihm erstarrten Schmelze, die als Verschlußpfropfen das Abfließen der Schmelze aus der Verteilerrinne verhindert, am Boden des Verteilergefäßes bzw. am Boden der Gießpfanne hängen. Das Verschleißteil 2 läßt sich zusammen mit der erstarrten Schmelze durch einfaches Abschlagen leicht vom Boden des Verteilergefäßes bzw. der Gießpfanne entfernen. Für den erneuten Einsatz des Schieberverschlusses wird ein neues Verschleißteil 2 von oben in die Scbieberoberplatte eingeschoben und mit dem von unten einzusetzenden Verschleißring 6 verklebt.Fig. 2 shows the
Fig. 3 zeigt einen neuen Verschleißring 6 mit einer einseitigen elliptischen Vergrößerung 6' für eine Einkantenregelung beim Strangguß.Fig. 3 shows a
Fig. 4 zeigt einen Verschleißring 6 mit sich diametral gegenüberliegenden elliptischen Vergrößerungen 6' für eine Zweikantenregelung beim Strangguß.Fig. 4 shows a
Mit Hilfe des erfindungsgemäßen Einsatzes A, bestehend aus dem Verschleißteil 2 und dem Verschleißring 6 kann im Stahlwerksbetrieb die Schieberoberplatte 1 an Ort und Stelle auf einfache Weise unter Vermeidung umständlicher Reparaturarbeiten für einen neuen Guß aufbereitet werden.With the help of the insert A according to the invention, consisting of the wearing
Claims (4)
dadurch gekennzeichnet,
daß der hochhitzebeständige Einsatz (A) aus einem oberen Verschleißteil (2) und einem unteren Verschleißring (6) besteht, der das Verschleißteil (2) an seiner ringförmigen unteren Aussparung (4) abdichtend umgreift, wobei die innere Unterkante des Verschleißteils (2) die Regelkante (5) bildet.Slider closure on metallurgical vessels with a refractory slider top plate (1) with at least one flow opening (3) and a highly heat-resistant insert (A) which surrounds the flow opening (3),
characterized,
that the highly heat-resistant insert (A) consists of an upper wear part (2) and a lower wear ring (6) which surrounds the wear part (2) in a sealing manner at its annular lower recess (4), the inner lower edge of the wear part (2) Rule edge (5) forms.
dadurch gekennzeichnet,
daß der Verschleißring (6) einseitig am äußeren Umfang elliptisch vergrößert ist.Slide closure according to claim 1,
characterized,
that the wear ring (6) is enlarged on one side on the outer circumference elliptically.
dadurch gekennzeichnet,
daß der Verschleißring (6) am äußeren Umfang an zwei sich diametral gegenüberliegenden Seiten elliptisch vergrößert ist.Slider closure according to claim 1 or 2,
characterized,
that the wear ring (6) is enlarged elliptically on the outer circumference on two diametrically opposite sides.
dadurch gekennzeichnet,
daß die elliptischen Vergrößerungen (6') am Verschleißring (6) einsetzbare Paßstücke sind.Slide closure according to one of claims 1 to 3,
characterized,
that the elliptical enlargements (6 ') on the wear ring (6) are insert pieces.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT91112562T ATE112195T1 (en) | 1991-07-26 | 1991-07-26 | SLIDE CLOSURE ON METALLURGICAL VESSELS. |
| DK91112562.3T DK0529108T3 (en) | 1991-07-26 | 1991-07-26 | Slider closure on metal casks |
| DE59103128T DE59103128D1 (en) | 1991-07-26 | 1991-07-26 | Slider closure on metallurgical vessels. |
| ES91112562T ES2061134T3 (en) | 1991-07-26 | 1991-07-26 | SLIDING CLOSURE IN METALLURGICAL VESSELS. |
| EP91112562A EP0529108B1 (en) | 1991-07-26 | 1991-07-26 | Slide gate nozzle for metallurgical vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP91112562A EP0529108B1 (en) | 1991-07-26 | 1991-07-26 | Slide gate nozzle for metallurgical vessels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0529108A1 true EP0529108A1 (en) | 1993-03-03 |
| EP0529108B1 EP0529108B1 (en) | 1994-09-28 |
Family
ID=8206987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91112562A Expired - Lifetime EP0529108B1 (en) | 1991-07-26 | 1991-07-26 | Slide gate nozzle for metallurgical vessels |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0529108B1 (en) |
| AT (1) | ATE112195T1 (en) |
| DE (1) | DE59103128D1 (en) |
| DK (1) | DK0529108T3 (en) |
| ES (1) | ES2061134T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046447A1 (en) * | 1999-04-21 | 2000-10-25 | Didier-Werke Ag | Rotary slide valve plate |
| WO2006042596A1 (en) * | 2004-10-18 | 2006-04-27 | Refractory Intellectual Property Gmbh & Co.Kg | Slide plate |
| CN106994509A (en) * | 2016-01-25 | 2017-08-01 | 科华控股股份有限公司 | It is a kind of to increase the service life and mo(u)lding line chassis location structure easy to maintenance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8009335U1 (en) * | 1980-04-03 | 1980-07-24 | Zimmermann & Jansen Gmbh, 5160 Dueren | SLIDE ELEMENT FOR THE SLIDING CLOSURE OF A WATER PAN |
| DE3238922A1 (en) * | 1981-12-22 | 1983-06-30 | Flocon Italiana s.r.l., 20121 Milano | SLIDER PLATE WITH SPOUT SLEEVE |
| EP0391053A2 (en) * | 1989-04-06 | 1990-10-10 | North American Refractories Company | Refractory assembly including inner and outer refractory members of ceramic material with interference shrink fit therebetween and method of formation thereof |
| DE3434857C1 (en) * | 1984-09-22 | 1992-06-11 | Didier-Werke Ag, 6200 Wiesbaden | Slider closure for pouring out metallurgical vessels |
-
1991
- 1991-07-26 DK DK91112562.3T patent/DK0529108T3/en active
- 1991-07-26 EP EP91112562A patent/EP0529108B1/en not_active Expired - Lifetime
- 1991-07-26 DE DE59103128T patent/DE59103128D1/en not_active Expired - Fee Related
- 1991-07-26 AT AT91112562T patent/ATE112195T1/en not_active IP Right Cessation
- 1991-07-26 ES ES91112562T patent/ES2061134T3/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8009335U1 (en) * | 1980-04-03 | 1980-07-24 | Zimmermann & Jansen Gmbh, 5160 Dueren | SLIDE ELEMENT FOR THE SLIDING CLOSURE OF A WATER PAN |
| DE3238922A1 (en) * | 1981-12-22 | 1983-06-30 | Flocon Italiana s.r.l., 20121 Milano | SLIDER PLATE WITH SPOUT SLEEVE |
| DE3434857C1 (en) * | 1984-09-22 | 1992-06-11 | Didier-Werke Ag, 6200 Wiesbaden | Slider closure for pouring out metallurgical vessels |
| EP0391053A2 (en) * | 1989-04-06 | 1990-10-10 | North American Refractories Company | Refractory assembly including inner and outer refractory members of ceramic material with interference shrink fit therebetween and method of formation thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046447A1 (en) * | 1999-04-21 | 2000-10-25 | Didier-Werke Ag | Rotary slide valve plate |
| WO2006042596A1 (en) * | 2004-10-18 | 2006-04-27 | Refractory Intellectual Property Gmbh & Co.Kg | Slide plate |
| EA009962B1 (en) * | 2004-10-18 | 2008-04-28 | Рифректори Интеллектуал Проперти Гмбх & Ко.Кг | Slide plate |
| US7703644B2 (en) | 2004-10-18 | 2010-04-27 | Refractory Intellectual Property Gmbh & Co. Kg | Slide plate |
| CN106994509A (en) * | 2016-01-25 | 2017-08-01 | 科华控股股份有限公司 | It is a kind of to increase the service life and mo(u)lding line chassis location structure easy to maintenance |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59103128D1 (en) | 1994-11-03 |
| ATE112195T1 (en) | 1994-10-15 |
| ES2061134T3 (en) | 1994-12-01 |
| DK0529108T3 (en) | 1995-04-10 |
| EP0529108B1 (en) | 1994-09-28 |
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