EP0446406A1 - Sliding gate valve for a metallurgical vessel, especially a casting ladle - Google Patents

Sliding gate valve for a metallurgical vessel, especially a casting ladle Download PDF

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Publication number
EP0446406A1
EP0446406A1 EP90116177A EP90116177A EP0446406A1 EP 0446406 A1 EP0446406 A1 EP 0446406A1 EP 90116177 A EP90116177 A EP 90116177A EP 90116177 A EP90116177 A EP 90116177A EP 0446406 A1 EP0446406 A1 EP 0446406A1
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EP
European Patent Office
Prior art keywords
plate
slide
box
cover plate
frame
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.)
Withdrawn
Application number
EP90116177A
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German (de)
French (fr)
Inventor
Kurt Flossdorf
Herbert Dr.-Ing. Wagner
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.)
Zimmermann and Jansen GmbH
Original Assignee
Zimmermann and Jansen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zimmermann and Jansen GmbH filed Critical Zimmermann and Jansen GmbH
Publication of EP0446406A1 publication Critical patent/EP0446406A1/en
Withdrawn legal-status Critical Current

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    • 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
    • B22D41/42—Features relating to gas injection

Definitions

  • the invention relates to a slide closure for a metallurgical casting vessel, in particular a ladle, with a slide plate, which is held in a displaceable frame and has at least one pouring opening and can be displaced against a top plate arranged above it and provided with a passage opening, the top plate being connected to a base of the casting vessel-connected mounting plate and the frame comprising the slide plate is mounted to slide back and forth within a slide housing connected to the mounting plate in the slide plate adjustment direction, the frame comprising the slide plate having pressing elements in the form of spring elements, by means of which the slide plate can be pressed against the head plate is.
  • Such a slide closure is generally known (DE-B-26 52 593; Ludwig Walther, the use of slide closures on the distribution channel of continuous casting plants, special print from "metallurgical practice, metal processing" 10/80; DE-A-36 16 115).
  • it cannot be prevented that ambient air is drawn into the pouring channel and poured into the molten metal during casting via the slide closure, in particular between the top plate and the slide plate. The result is uncontrolled metallurgical reactions that can severely affect the quality of the end product.
  • the present invention is based on the object of designing the slide closure mentioned at the outset in such a way that suction of ambient air in the region of the slide closure, which adversely affects the quality of the molten metal, is avoided.
  • the essence of the present invention therefore lies in creating an inert gas, in particular argon, gas environment around the slide closure or the slide housing. Sucking argon gas over the slide valve has proven to be harmless. All parts of the slide closure, via which ambient air could be sucked into the pouring channel during the pouring, should be arranged within a practically fluid-tight box into which an inert gas, in particular argon gas line opens, so that an inert gas environment can be produced within this box.
  • the slide closure according to the invention is therefore an "encapsulated" construction with which the disadvantages mentioned at the outset can be reliably avoided.
  • the box enclosing the slide housing is mounted on the floor, in particular on a base plate of the casting vessel, the lower cover plate facing away from the bottom of the casting vessel being articulated on one side of the box, so that the box for mounting or dismounting the slide and / or head plate or openable for maintenance of the slide closure, d. H. is accessible from the outside.
  • the aforementioned cover plate is closed and corresponds to a peripheral seal which is arranged either on the cover plate or on the edge of the box side walls facing the cover plate.
  • the box delimiting the inert gas environment is preferably approximately cuboid. Of course, a circular or oval-cylindrical design is equally conceivable.
  • the pouring spout connected to the slide plate extends in a fluid-tight manner through the box surrounding the slide housing, in particular through the aforementioned cover plate.
  • the fluid seal between the pouring spout or an immersion tube connected to it on the one hand and the box or the aforementioned cover plate of the same on the other hand is preferably formed by a bellows made of high temperature-resistant material connected to the edge of the box opening and extending around the pouring spout, the lower or the lower bellows
  • the rim facing away from the casting vessel bears sealingly on the outer lateral surface of the pouring spout or the dip tube connected to it.
  • the aforementioned bellows can be pretensioned by a coupling ring with simultaneous fluid-tight contact of the lower or the peripheral edge of the bellows facing away from the casting vessel on an annular seal arranged in the coupling ring, which, under the aforementioned preload, is also fluid-tight on the outer surface of the pouring spout or on it connected dip tube.
  • the ring seal therefore has a biaxial effect.
  • the aforementioned bellows can also cause thermal stress in the area of the pouring spout be dismantled.
  • the bellows together with the coupling ring is mounted or mountable on a slide frame mounted on the box or on the cover plate so that it can be pushed back and forth in the slide plate adjustment direction, the slide frame being sealed off from the box or its cover plate by sealing strips is.
  • the sliding frame slidably mounted on the box or on its lower cover is mechanically coupled to the slide plate frame, so that both frames can be pushed back and forth together by the slide plate adjustment device. In this way, the aforementioned encapsulation of the slide closure is maintained with each slide plate position.
  • the cover plate of the box is preferably held in a tight closed position by means of clamping wedges.
  • a slide closure for a metallurgical casting vessel such as a ladle or a tundish for pouring a metallic melt is shown in partial view or in partial section, this slide closure with a pouring opening held in a displaceable frame 9 18 having slide plate 5 is provided, which is displaceable against a head plate 4 arranged above it, provided with a through opening 19, the head plate 4 being fixed to a mounting plate 7 connected to the bottom 6 of the casting vessel and the frame 9 comprising the slide plate within a frame with the Mounting plate 7 connected slide housing 8 is mounted to slide back and forth in the slide plate adjustment direction.
  • the slide plate adjustment direction is identified in FIG. 2 by the double arrow 36.
  • the frame 9 comprising the slide plate 5 also has pressure elements in the form of spring elements 10, by means of which the slide plate 5 can be pressed against the head plate 4.
  • the aforementioned slide fastener construction is known per se, so that it is sufficient to list the parts identified by reference numerals in the figures as follows: Lower sleeve 1 Perforated brick 2 Upper sleeve 3 Head plate 4 Slider plate 5 Base plate 6 Mounting plate 7 with interchangeable ring 37 Slider housing 8 Slide frame 9 with slide rails or strips 38 Spring elements 10 Locking device 12 hinge side Locking device 13 latch side Lantern 14 with intermediate piece hydraulic cylinder 15 Piston rod 16 Hydraulic connections 17.
  • a gas-tight lockable box 11 is built around the slide closure including the slide housing 8, into which an inert gas, in particular argon gas line 20 (see FIG. 2) opens, so that an argon gas environment can be produced within the box 11.
  • argon gas is sucked into the pouring channel, which is metallurgically harmless.
  • the box 11 enclosing the slide housing 8 is mounted on the floor, namely on a base plate 6 of the casting vessel (screw connection 39), the lower cover plate 21 facing away from the bottom of the casting vessel being articulated on one side of the box 11 via hinge joints 22 (see. 1 and 3).
  • the box 11 can be opened in this way for assembly or disassembly of the slide and / or head plate or for maintenance of the slide closure, i. H. accessible from outside or below.
  • the aforementioned cover plate 21 corresponds to a circumferential seal 23 which is arranged on the edge 24 of the box side walls 25 facing the cover plate 21, namely within a circumferential groove formed on the end face.
  • the cover plate 21 In the sealing position, the cover plate 21 is held by clamping wedges 34 'as shown in FIGS. 1 and 2. In FIG. 3, the aforementioned cover plate 21 is also in the open, ie. H. shown folded down position, in dash-dotted lines.
  • the pouring spout 26 connected to the slide plate 5 extends in a fluid-tight manner through the box 11 surrounding the slide housing 8, namely through the cover plate 21.
  • the fluid seal between the pouring spout 26 or as here a dip tube 27 connected to it on the one hand and the box 11 or the cover plate 21 on the other hand is provided by a rim 28 of the cover plate opening through which the The aforementioned pouring spout 26 or the immersion tube 27 connected to it extend through, connected bellows 29, which extend around the pouring nozzle 26 or the immersion tube 27 connected to it, are made of high-temperature-resistant steel, the lower edge 40 or the edge 40 facing away from the casting vessel sealingly on the outer Shell surface of the pouring spout 26 or - as here - of the dip tube 27 connected to it.
  • the bellows 29 can be pretensioned by a coupling ring 30 with simultaneous fluid-tight abutment of the lower peripheral edge 40 on an annular seal 32 arranged in the coupling ring 30, which is fluid-tight on the outer circumferential surface of the immersion tube under the aforementioned prestress 27 creates.
  • the coupling ring 30 can be screwed into a recess of the cover plate 21 from below and is fixed in the screwed-in position by the axial prestressing of the bellows 29.
  • the upper peripheral edge 41 of the bellows 29 is screwed to the bottom of the cover plate depression 31 (screw connection 42 in FIG. 2).
  • the bellows 29 together with the coupling ring 30 is mounted in a slide frame 33 mounted on the cover plate 21 in a slide plate adjustment direction, the slide frame 33 being sealed by sealing strips 34 with respect to the box 11 or its cover plate 21.
  • the back and forth movement of the slide frame 33 is identified in FIG. 2 by the double arrow 43.
  • the slide frame 33 is mechanically coupled to the slide plate slide frame 9, so that both frames 9 and 33 can be pushed back and forth together by the slide plate adjusting device 15, 16, 17 in the direction of the double arrow 36 or double arrow 43.
  • the mechanical coupling of the Both of the above-mentioned sliding frames are followed in the embodiment shown by stop bolts 44 '.
  • the slide frame 33 is inside of the box 11 on the cover plate 21 of the same along sliding rails 44 out and pushed out.
  • Both the cover plate 21 and the slide frame 33 are provided with a heat-resistant protective plate or a heat-resistant protective shield 45. This is located on the side of the cover plate 21 and slide frame 33 facing away from the casting vessel.
  • the protective box 11 is approximately cuboid. In principle, a circular or oval cylindrical design is also conceivable.
  • the lantern 14 must also be connected to the box 11 in a fluid-tight manner.
  • the intermediate piece 46 which is arranged between the slide sliding frame 9 and the piston rod 16 of the slide plate actuator 15 and extends through the lantern 14, is also introduced into the box 11 in a fluid-tight manner.
  • the intermediate piece 46 extends through ring seals 47 arranged on the box side.
  • the argon gas line 20 is connected to an argon gas source, not shown.
  • Pressure regulating devices are also provided, by means of which the introduction of argon gas into the protective box 11 can be regulated such that an argon gas atmosphere with a predetermined pressure prevails inside the protective box 11, which pressure is always greater than the external air pressure.

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

Abstract

A sliding gate valve for a metallurgical pouring vessel, especially a casting ladle, with a slide plate (5) which is held in a displaceable frame (9), has at least one pouring opening (18) and can be displaced relative to a top plate (4) arranged above the said slide plate and provided with a passage opening (19). The top plate (4) is fixed on a mounting plate (7) connected to the base (6) of the pouring vessel, and the frame (9) surrounding the slide plate is mounted within a slide housing (8) connected to the mounting plate (7) and can be displaced backwards and forwards in the direction of displacement (36) of the slide plate. The frame (9) surrounding the slide plate (5) has contact-pressure elements in the form of spring elements (10), by means of which the slide plate (5) can be pressed against the top plate (4). A box (11), which can be closed in a gas-tight manner and into which there opens a conduit (20) for inert gas, in particular argon, is constructed around the sliding gate valve or slide housing (8), allowing the creation of an inert gas environment within the box (11). <IMAGE>

Description

Die Erfindung betrifft einen Schieberverschluß für ein metallurgisches Gießgefäß, insbesondere eine Gießpfanne, mit einer in einem verschiebbaren Rahmen gehaltenen, mindestens eine Ausgußöffnung aufweisenden Schieberplatte, die gegen eine darüber angeordnete, mit einer Durchtrittsöffnung versehene Kopfplatte verschiebbar ist, wobei die Kopfplatte an einer mit dem Boden des Gießgefäßes verbundenen Montageplatte festgelegt und der die Schieberplatte umfassende Rahmen innerhalb eines mit der Montageplatte verbundenen Schiebergehäuses in Schieberplatten-Verstellrichtung hin- und herverschiebbar gelagert ist, wobei der die Schieberplatte umfassende Rahmen Anpreßelemente in Form von Federelementen aufweist, durch die die Schieberplatte gegen die Kopfplatte anpreßbar ist.The invention relates to a slide closure for a metallurgical casting vessel, in particular a ladle, with a slide plate, which is held in a displaceable frame and has at least one pouring opening and can be displaced against a top plate arranged above it and provided with a passage opening, the top plate being connected to a base of the casting vessel-connected mounting plate and the frame comprising the slide plate is mounted to slide back and forth within a slide housing connected to the mounting plate in the slide plate adjustment direction, the frame comprising the slide plate having pressing elements in the form of spring elements, by means of which the slide plate can be pressed against the head plate is.

Ein derartiger Schieberverschluß ist allgemein bekannt (DE-B-26 52 593; Ludwig Walther, Der Einsatz von Schieberverschlüssen an der Verteilerrinne von Stranggußanlagen, Sonderdruck aus "Hüttenpraxis, Metallweiterverarbeitung" 10/80; DE-A-36 16 115). Bei den bekannten Schieberverschlüssen läßt es sich nicht verhindern, daß beim Abguß über den Schieberverschluß, insbesondere zwischen Kopf- und Schieberplatte hindurch Umgebungsluft in den Ausgußkanal angesogen und der Metallschmelze beigemischt wird. Die Folge sind unkontrollierte metallurgische Reaktionen, die die Qualität des Endprodukts stark beeinträchtigen können.Such a slide closure is generally known (DE-B-26 52 593; Ludwig Walther, the use of slide closures on the distribution channel of continuous casting plants, special print from "metallurgical practice, metal processing" 10/80; DE-A-36 16 115). In the known slide closures, it cannot be prevented that ambient air is drawn into the pouring channel and poured into the molten metal during casting via the slide closure, in particular between the top plate and the slide plate. The result is uncontrolled metallurgical reactions that can severely affect the quality of the end product.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, den eingangs genannten Schieberverschluß so auszubilden, daß ein die Qualität der Metallschmelze beeinträchtigendes Ansaugen von Umgebungsluft im Bereich des Schieberverschlusses vermieden wird.The present invention is based on the object of designing the slide closure mentioned at the outset in such a way that suction of ambient air in the region of the slide closure, which adversely affects the quality of the molten metal, is avoided.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst, wobei vorteilhafte konstruktive Details in den Unteransprüchen beschrieben sind.This object is achieved according to the invention by the characterizing features of claim 1, advantageous structural details being described in the subclaims.

Der Kern der vorliegenden Erfindung liegt also darin, um den Schieberverschluß bzw. das Schiebergehäuse herum eine Inertgas-, insbesondere Argongas-Umgebung zu schaffen. Das Ansaugen von Argongas über den Schieberverschluß hat sich als unschädlich erwiesen. Dabei sollen sämtliche Teile des Schieberverschlusses, über die beim Abguß Umgebungsluft in den Ausgußkanal angesaugt werden könnte, innerhalb eines praktisch fluiddichten Kastens angeordnet sein, in den eine Inertgas-, insbesondere Argongas-Leitung mündet, so daß innerhalb dieses Kastens eine Inertgasumgebung herstellbar ist. Beim erfindungsgemäßen Schieberverschluß handelt es sich also um eine "gekapselte" Konstruktion, mit der die eingangs genannten Nachteile sicher vermieden werden können.The essence of the present invention therefore lies in creating an inert gas, in particular argon, gas environment around the slide closure or the slide housing. Sucking argon gas over the slide valve has proven to be harmless. All parts of the slide closure, via which ambient air could be sucked into the pouring channel during the pouring, should be arranged within a practically fluid-tight box into which an inert gas, in particular argon gas line opens, so that an inert gas environment can be produced within this box. The slide closure according to the invention is therefore an "encapsulated" construction with which the disadvantages mentioned at the outset can be reliably avoided.

Vorzugsweise ist der das Schiebergehäuse einschließende Kasten an Boden, insbesondere an einer Bodengrundplatte des Gießgefäßes montiert, wobei die dem Boden des Gießgefäßes abgewandte bzw. untere Deckelplatte an einer Seite des Kastens angelenkt ist, so daß der Kasten zur Montage bzw. Demontage der Schieber- und/oder Kopfplatte oder zur Wartung des Schieberverschlusses öffenbar, d. h. von außen her zugänglich ist. Im Betrieb ist die vorgenannte Deckelplatte geschlossen und korrespondiert mit einer Umfangsdichtung, die entweder an der Deckelplatte oder am der Deckelplatte zugewandten Rand der Kastenseitenwände angeordnet ist. Vorzugsweise ist der die Inertgasumgebung begrenzende Kasten etwa quaderförmig ausgebildet. Genauso gut ist natürlich auch eine kreis- oder ovalzylindrische Ausbildung denkbar.Preferably, the box enclosing the slide housing is mounted on the floor, in particular on a base plate of the casting vessel, the lower cover plate facing away from the bottom of the casting vessel being articulated on one side of the box, so that the box for mounting or dismounting the slide and / or head plate or openable for maintenance of the slide closure, d. H. is accessible from the outside. In operation, the aforementioned cover plate is closed and corresponds to a peripheral seal which is arranged either on the cover plate or on the edge of the box side walls facing the cover plate. The box delimiting the inert gas environment is preferably approximately cuboid. Of course, a circular or oval-cylindrical design is equally conceivable.

Der mit der Schieberplatte verbundene Ausgußstutzen erstreckt sich fluiddicht durch den das Schiebergehäuse umgebenden Kasten, insbesondere durch die vorgenannte Deckelplatte desselben hindurch. Die Fluiddichtung zwischen dem Ausgußstutzen oder einem daran angeschlossenen Tauchrohr einerseits und dem Kasten bzw. der vorgenannten Deckelplatte desselben andererseits wird vorzugsweise durch einen am Rand der Kastenöffnung angeschlossenen, sich um den Ausgußstutzen hülsenartig herumerstreckenden, aus hochtemperaturresistentem Material hergestellten Federbalg gebildet, dessen untere bzw. dem Gießgefäß abgewandte Rand dichtend an der äußeren Mantelfläche des Ausgußstutzens oder des daran angeschlossenen Tauchrohrs anliegt. Der vorgenannte Federbalg ist bei einer konkreten Ausführungsform durch einen Kupplungsring vorspannbar unter gleichzeitiger fluiddichter Anlage des unteren bzw. dem Gießgefäß abgewandten Umfangsrandes des Federbalges an einer im Kupplungsring angeordneten Ringdichtung, die sich unter der genannten Vorspannung auch fluiddicht an der äußeren Mantelfläche des Ausgußstutzens oder des daran angeschlossenen Tauchrohres anl-egt. Die Ringdichtung wirkt demnach biaxial. Durch den vorgenannten Federbalg können auch Wärmespannungen im Bereich des Ausgußstutzens abgebaut werden. Um der Schieberplattenbewegung folgen zu können, ist der Federbalg samt Kupplungsring an einem am Kasten bzw. an der Deckelplatte desselben in Schieberplatten-Verstellrichtung hin- und herverschiebbar gelagerten Gleitrahmen montiert bzw. montierbar, wobei der Gleitrahmen durch Dichtleisten gegenüber dem Kasten bzw. dessen Deckelplatte abgedichtet ist. In diesem Fall empfiehlt es sich, daß der am Kasten bzw. an dessen unterem Deckel verschiebbar gelagerte Gleitrahmen mit dem Schieberplatten-Rahmen mechanisch gekoppelt ist, so daß beide Rahmen durch die Schieberplatten-Verstelleinrichtung gemeinsam hin- und herverschiebbar sind. Auf diese Weise wird bei jeder Schieberplattenstellung die vorgenannte Kapselung des Schieberverschlusses aufrechterhalten.The pouring spout connected to the slide plate extends in a fluid-tight manner through the box surrounding the slide housing, in particular through the aforementioned cover plate. The fluid seal between the pouring spout or an immersion tube connected to it on the one hand and the box or the aforementioned cover plate of the same on the other hand is preferably formed by a bellows made of high temperature-resistant material connected to the edge of the box opening and extending around the pouring spout, the lower or the lower bellows The rim facing away from the casting vessel bears sealingly on the outer lateral surface of the pouring spout or the dip tube connected to it. In a specific embodiment, the aforementioned bellows can be pretensioned by a coupling ring with simultaneous fluid-tight contact of the lower or the peripheral edge of the bellows facing away from the casting vessel on an annular seal arranged in the coupling ring, which, under the aforementioned preload, is also fluid-tight on the outer surface of the pouring spout or on it connected dip tube. The ring seal therefore has a biaxial effect. The aforementioned bellows can also cause thermal stress in the area of the pouring spout be dismantled. In order to be able to follow the slide plate movement, the bellows together with the coupling ring is mounted or mountable on a slide frame mounted on the box or on the cover plate so that it can be pushed back and forth in the slide plate adjustment direction, the slide frame being sealed off from the box or its cover plate by sealing strips is. In this case, it is recommended that the sliding frame slidably mounted on the box or on its lower cover is mechanically coupled to the slide plate frame, so that both frames can be pushed back and forth together by the slide plate adjustment device. In this way, the aforementioned encapsulation of the slide closure is maintained with each slide plate position.

Vorzugsweise wird die Deckelplatte des Kastens durch Klemmkeile in dichter Schließlage gehalten.The cover plate of the box is preferably held in a tight closed position by means of clamping wedges.

Nachstehend wird eine Ausführungsform eines erfindungsgemäß ausgebildeten Schieberverschlusses anhand der beigefügten Zeichnung näher erläutert. Es zeigen:

Fig. 1
den erfindungsgemäß ausgebildeten Schieberverschluß in Ansicht von unten;
Fig. 2
den Schieberverschluß gemäß Fig. 1 im Schnitt längs Linie A-A in Fig. 1; und
Fig. 3
den Schieberverschluß gemäß Fig. 1 im Schnitt gemäß Linie B-B in Fig. 1.
An embodiment of a slide closure designed according to the invention is explained in more detail below with reference to the attached drawing. Show it:
Fig. 1
the slide closure designed according to the invention in a view from below;
Fig. 2
the slider closure of Figure 1 in section along line AA in Fig. 1. and
Fig. 3
1 in section along line BB in Fig. 1st

In den Fig. 1 bis 3 ist ein Schieberverschluß für ein metallurgisches Gießgefäß, wie Gießpfanne oder Verteilerrinne zum Abguß einer metallischen Schmelze in Teilansicht bzw. im Teilschnitt dargestellt, wobei dieser Schieberverschluß mit einer in einem verschiebbaren Rahmen 9 gehaltenen, eine Ausgußöffnung 18 aufweisenden Schieberplatte 5 versehen ist, die gegen eine darüber angeordnete, mit einer Durchtrittsöffnung 19 versehene Kopfplatte 4 verschiebbar ist, wobei die Kopfplatte 4 an einer mit dem Boden 6 des Gießgefäßes verbundenen Montageplatte 7 festgelegt und der die Schieberplatte umfassende Rahmen 9 innerhalb eines mit der Montageplatte 7 verbundenen Schiebergehäuses 8 in Schieberplatten-Verstellrichtung hin- und herverschiebbar gelagert ist. Die Schieberplatten-Verstellrichtung ist in Fig. 2 mit dem Doppelpfeil 36 gekennzeichnet. Der die Schieberplatte 5 umfassende Rahmen 9 weist noch Anpreßelemente in Form von Federelementen 10 auf, durch die die Schieberplatte 5 gegen die Kopfplatte 4 anpreßbar ist. Die vorgenannte Schieberverschluß-Konstruktion ist an sich bekannt, so daß es genügt, die in den Figuren mit Bezugsziffern gekennzeichneten Teile wie nachstehend aufzulisten:
Unterhülse 1
Lochstein 2
Oberhülse 3
Kopfplatte 4
Schieberplatte 5
Grundplatte 6
Montageplatte 7 mit Wechselring 37
Schiebergehäuse 8
Gleitrahmen 9 mit Gleitschienen bzw. -leisten 38
Federelemente 10
Schließvorrichtung 12 Scharnierseite
Schließvorrichtung 13 Klinkseite
Laterne 14 mit Zwischenstück
hydraulischer Zylinder 15
Kolbenstange 16
Hydraulikanschlüsse 17.1 to 3, a slide closure for a metallurgical casting vessel, such as a ladle or a tundish for pouring a metallic melt is shown in partial view or in partial section, this slide closure with a pouring opening held in a displaceable frame 9 18 having slide plate 5 is provided, which is displaceable against a head plate 4 arranged above it, provided with a through opening 19, the head plate 4 being fixed to a mounting plate 7 connected to the bottom 6 of the casting vessel and the frame 9 comprising the slide plate within a frame with the Mounting plate 7 connected slide housing 8 is mounted to slide back and forth in the slide plate adjustment direction. The slide plate adjustment direction is identified in FIG. 2 by the double arrow 36. The frame 9 comprising the slide plate 5 also has pressure elements in the form of spring elements 10, by means of which the slide plate 5 can be pressed against the head plate 4. The aforementioned slide fastener construction is known per se, so that it is sufficient to list the parts identified by reference numerals in the figures as follows:
Lower sleeve 1
Perforated brick 2
Upper sleeve 3
Head plate 4
Slider plate 5
Base plate 6
Mounting plate 7 with interchangeable ring 37
Slider housing 8
Slide frame 9 with slide rails or strips 38
Spring elements 10
Locking device 12 hinge side
Locking device 13 latch side
Lantern 14 with intermediate piece
hydraulic cylinder 15
Piston rod 16
Hydraulic connections 17.

Die vorgenannten Teile und ihre Zusammenwirkung sind z. B. erläutert in einem Prospektblatt der Anmelderin "Gießpfannenschieber/Ladle Sliding Gate Valves" 1/79 Nr. 1.6.02.01".The aforementioned parts and their interaction are e.g. B. explained in a prospectus sheet by the applicant "Gießpfannenschieber / Ladle Sliding Gate Valves" 1/79 No. 1.6.02.01 ".

Um ein Ansaugen von Umgebungsluft über den vorgenannten Gießpfannenschieber in den Ausgußkanal zu vermeiden, ist der vorgenannte Schieberverschluß gekapselt ausgeführt, d. h. um den Schieberverschluß einschließlich Schiebergehäuse 8 herum ist ein gasdicht abschließbarer Kasten 11 gebaut, in den eine Inertgas-, insbesondere Argongas-Leitung 20 (s. Fig. 2) mündet, so daß innerhalb des Kastens 11 eine Argongas-Umgebung herstellbar ist. Beim Abguß wird also in den Ausgußkanal allenfalls Argongas angesaugt, welches metallurgisch unbedenklich ist.In order to avoid sucking in ambient air via the aforementioned ladle slide into the pouring spout, the aforementioned slide closure is encapsulated, i. H. a gas-tight lockable box 11 is built around the slide closure including the slide housing 8, into which an inert gas, in particular argon gas line 20 (see FIG. 2) opens, so that an argon gas environment can be produced within the box 11. During casting, argon gas is sucked into the pouring channel, which is metallurgically harmless.

Der das Schiebergehäuse 8 einschließende Kasten 11 ist am Boden, nämlich an einer Bodengrundplatte 6 des Gießgefäßes montiert (Schraubverbindung 39), wobei die dem Boden des Gießgefäßes abgewandte bzw. untere Deckelplatte 21 an einer Seite des Kastens 11 über Scharniergelenke 22 angelenkt ist (s. Fig. 1 und 3). Der Kasten 11 ist auf diese Weise zur Montage bzw. Demontage der Schieber- und/oder Kopfplatte oder zur Wartung des Schieberverschlusses öffenbar, d. h. von außen bzw. unten her zugänglich. Die vorgenannte Deckelplatte 21 korrespondiert mit einer Umfangsdichtung 23, die am der Deckelplatte 21 zugewandten Rand 24 der Kastenseitenwände 25 angeordnet ist, und zwar innerhalb einer stirnseitig ausgebildeten Umfangsnut. In Dichtlage wird die Deckelplatte 21 durch Klemmkeile 34'gehalten entsprechend der Darstellung in den Fig. 1 und 2. In Fig. 3 ist die vorgenannte Deckelplatte 21 auch in geöffneter, d. h. nach unten geklappter Stellung dargestellt, und zwar in strichpunktierten Linien.The box 11 enclosing the slide housing 8 is mounted on the floor, namely on a base plate 6 of the casting vessel (screw connection 39), the lower cover plate 21 facing away from the bottom of the casting vessel being articulated on one side of the box 11 via hinge joints 22 (see. 1 and 3). The box 11 can be opened in this way for assembly or disassembly of the slide and / or head plate or for maintenance of the slide closure, i. H. accessible from outside or below. The aforementioned cover plate 21 corresponds to a circumferential seal 23 which is arranged on the edge 24 of the box side walls 25 facing the cover plate 21, namely within a circumferential groove formed on the end face. In the sealing position, the cover plate 21 is held by clamping wedges 34 'as shown in FIGS. 1 and 2. In FIG. 3, the aforementioned cover plate 21 is also in the open, ie. H. shown folded down position, in dash-dotted lines.

Der mit der Schieberplatte 5 verbundene Ausgußstutzen 26 erstreckt sich fluiddicht durch den das Schiebergehäuse 8 umgebenden Kasten 11 , nämlich durch die Deckelplatte 21 hindurch. Die Fluiddichtung zwischen dem Ausgußstutzen 26 bzw. wie hier einem daran angeschlossenen Tauchrohr 27 einerseits und dem Kasten 11 bzw. der Deckelplatte 21 andererseits wird durch einen am Rand 28 der Deckelplatten-Öffnung, durch die sich der vorgenannte Ausgußstutzen 26 bzw. das daran angeschlossene Tauchrohr 27 hindurcherstrecken, angeschlossenen, sich um den Ausgußstutzen 26 bzw. das daran angeschlossene Tauchrohr 27 hülsenartig herumerstreckenden, aus hochtemperaturbeständigem Stahl hergestellten Federbalg 29 gebildet, dessen untere bzw. dem Gießgefäß abgewandte Rand 40 dichtend an der äußeren Mantelfläche des Ausgußstutzens 26 bzw. - wie hier - des daran angeschlossenen Tauchrohrs 27 anliegt. Konkret erfolgt die vorgenannte Abdichtung gegenüber der Umgebung dadurch, daß der Federbalg 29 durch einen Kupplungsring 30 vorspannbar ist unter gleichzeitiger fluiddichter Anlage des unteren Umfangsrandes 40 an einer im Kupplungsring 30 angeordneten Ringdichtung 32, die sich unter der genannten Vorspannung fluiddicht an der äußeren Mantelfläche des Tauchrohres 27 anlegt. Der Kupplungsring 30 ist von unten her in eine Vertiefung der Dekelplatte 21 einschraubbar und durch die axiale Vorspannung des Federbalgs 29 in der eingeschraubten Lage fixiert. Der obere Umfangsrand 41 des Federbalgs 29 ist mit dem Boden der Deckelplatten-Vertiefung 31 verschraubt (Schraubverbindung 42 in Fig. 2).The pouring spout 26 connected to the slide plate 5 extends in a fluid-tight manner through the box 11 surrounding the slide housing 8, namely through the cover plate 21. The fluid seal between the pouring spout 26 or as here a dip tube 27 connected to it on the one hand and the box 11 or the cover plate 21 on the other hand is provided by a rim 28 of the cover plate opening through which the The aforementioned pouring spout 26 or the immersion tube 27 connected to it extend through, connected bellows 29, which extend around the pouring nozzle 26 or the immersion tube 27 connected to it, are made of high-temperature-resistant steel, the lower edge 40 or the edge 40 facing away from the casting vessel sealingly on the outer Shell surface of the pouring spout 26 or - as here - of the dip tube 27 connected to it. Specifically, the aforementioned sealing from the environment takes place in that the bellows 29 can be pretensioned by a coupling ring 30 with simultaneous fluid-tight abutment of the lower peripheral edge 40 on an annular seal 32 arranged in the coupling ring 30, which is fluid-tight on the outer circumferential surface of the immersion tube under the aforementioned prestress 27 creates. The coupling ring 30 can be screwed into a recess of the cover plate 21 from below and is fixed in the screwed-in position by the axial prestressing of the bellows 29. The upper peripheral edge 41 of the bellows 29 is screwed to the bottom of the cover plate depression 31 (screw connection 42 in FIG. 2).

Der Federbalg 29 ist samt Kupplungsring 30 in einem an der Deckelplatte 21 in Schieberplatten-Verstellrichtung hin- und herverschiebbar gelagerten Gleitrahmen 33 montiert, wobei der Gleitrahmen 33 durch Dichtleisten 34 gegenüber dem Kasten 11 bzw. dessen Deckelplatte 21 abgedichtet ist. Die Hin- und Herbewegung des Gleitrahmens 33 ist in Fig. 2 mit dem Doppelpfeil 43 gekennzeichnet.The bellows 29 together with the coupling ring 30 is mounted in a slide frame 33 mounted on the cover plate 21 in a slide plate adjustment direction, the slide frame 33 being sealed by sealing strips 34 with respect to the box 11 or its cover plate 21. The back and forth movement of the slide frame 33 is identified in FIG. 2 by the double arrow 43.

Der Gleitrahmen 33 ist mit dem Schieberplatten-Gleitrahmen 9 mechanisch gekoppelt, so daß beide Rahmen 9 und 33 durch die Schieberplatten-Verstelleinrichtung 15, 16, 17 gemeinsam hin- und herverschiebbar sind in Richtung des Doppelpfeils 36 bzw. Doppelpfeils 43. Die mechanische Kopplung der beiden vorgenannten Gleitrahmen folgt bei der dargestellten Ausführungsform durch Anschlagbolzen 44'. Der Gleitrahmen 33 ist innerhalb des Kastens 11 an der Deckelplatte 21 desselben längs Gleitschienen 44 hin- und herverschiebbar geführt. Sowohl die Dekelplatte 21 als auch der Gleitrahmen 33 sind mit einer hitzebeständigen Schutzplatte bzw. einem hitzebeständigen Schutzschild 45 versehen. Dieses befindet sich jeweils an der dem Gießgefäß abgewandten Seite von Deckelplatte 21 und Gleitrahmen 33.The slide frame 33 is mechanically coupled to the slide plate slide frame 9, so that both frames 9 and 33 can be pushed back and forth together by the slide plate adjusting device 15, 16, 17 in the direction of the double arrow 36 or double arrow 43. The mechanical coupling of the Both of the above-mentioned sliding frames are followed in the embodiment shown by stop bolts 44 '. The slide frame 33 is inside of the box 11 on the cover plate 21 of the same along sliding rails 44 out and pushed out. Both the cover plate 21 and the slide frame 33 are provided with a heat-resistant protective plate or a heat-resistant protective shield 45. This is located on the side of the cover plate 21 and slide frame 33 facing away from the casting vessel.

Wie Fig. 1 erkennen läßt, ist der Schutzkasten 11 etwa quaderförmig ausgebildet. Grundsätzlich ist auch eine kreis- oder ovalzylindrische Ausführung denkbar.As can be seen in FIG. 1, the protective box 11 is approximately cuboid. In principle, a circular or oval cylindrical design is also conceivable.

Selbstverständlich muß auch die Laterne 14 fluiddicht am Kasten 11 angeschlossen sein. Das zwischen Schieber-Gleitrahmen 9 und der Kolbenstange 16 des Schieberplatten-Stellantriebs 15 angeordnete und sich durch die Laterne 14 hindurcherstreckende Zwischenstück 46 ist ebenfalls fluiddicht in den Kasten 11 eingeführt. Zu diesem Zweck erstreckt sich das Zwischenstück 46 durch kastenseitig angeordnete Ringdichtungen 47 hindurch.Of course, the lantern 14 must also be connected to the box 11 in a fluid-tight manner. The intermediate piece 46, which is arranged between the slide sliding frame 9 and the piston rod 16 of the slide plate actuator 15 and extends through the lantern 14, is also introduced into the box 11 in a fluid-tight manner. For this purpose, the intermediate piece 46 extends through ring seals 47 arranged on the box side.

Die Argongas-Leitung 20 ist mit einer nicht-dargestellten Argongas-Quelle verbunden. Auch sind Druckregel-Einrichtungen vorgesehen, durch die die Einleitung von Argongas in den Schutzkasten 11 regelbar ist so, daß innerhalb des Schutzkastens 11 eine Argongas-Atmosphäre mit vorbestimmtem Druck herrscht, welcher stets größer ist als der äußere Luftdruck.The argon gas line 20 is connected to an argon gas source, not shown. Pressure regulating devices are also provided, by means of which the introduction of argon gas into the protective box 11 can be regulated such that an argon gas atmosphere with a predetermined pressure prevails inside the protective box 11, which pressure is always greater than the external air pressure.

Sämtliche in den Anmeldungsunterlagen offenbarten Merkmale werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind. Bezugszeichenliste

1
Unterhülse
2
Lochstein
3
Oberhülse
4
Kopfplatte
5
Schieberplatte
6
Grundplatte
7
Montage
8
Schiebergehäuse
9
Schieberplatten-Gleitrahmen
10
Federelemente
11
Schutzkasten
12
Schließvorrichtung Scharnierseite
13
Schließvorrichtung Klinkseite
14
Laterne mit Zwischenstück
15
Zylinder
16
Kolbenstange
17
Hydraulikanschluß
18
Ausgußöffnung
19
Durchtrittsöffnung
20
Argongas-Leitung
21
Deckelplatte
22
Scharniergelenk
23
Umfangsdichtung
24
Rand
25
Kastenseitenwand
26
Ausgußstutzen
27
Tauchrohr
28
Öffnungsrand
29
Federbalg
30
Kupplungsring
31
Vertiefung
32
Ringdichtung
33
Gleitrahmen
34
Klemmkeil
35
Verstellöffnung
36
Doppelpfeil
37
Wechselring
38
Gleitschienen
39
Schraubverbindung
40
Umfangsrand bzw. -flansch
41
Umfangsrand bzw. -flansch
42
Schraubverbindung
43
Doppelpfeil
44
Gleitschienen
45
Schutzplatte
46
Zwischenstück
47
Ringdichtung
All of the features disclosed in the application documents are claimed as essential to the invention, insofar as they are new compared to the prior art, individually or in combination. Reference symbol list
1
Sub-sleeve
2nd
Perforated brick
3rd
Upper sleeve
4th
Headstock
5
Slide plate
6
Base plate
7
Assembly
8th
Valve housing
9
Slider plate sliding frame
10th
Spring elements
11
Protective case
12
Hinge side locking device
13
Closing device latch side
14
Lantern with adapter
15
cylinder
16
Piston rod
17th
Hydraulic connection
18th
Pouring spout
19th
Passage opening
20th
Argon gas line
21st
Cover plate
22
Hinge joint
23
Circumferential seal
24th
edge
25th
Box side wall
26
Pouring spout
27th
Dip tube
28
Opening edge
29
Bellows
30th
Clutch ring
31
deepening
32
Ring seal
33
Sliding frame
34
Wedge
35
Adjustment opening
36
Double arrow
37
Change ring
38
Slide rails
39
Screw connection
40
Peripheral edge or flange
41
Peripheral edge or flange
42
Screw connection
43
Double arrow
44
Slide rails
45
Protective plate
46
Spacer
47
Ring seal

Claims (9)

Schieberverschluß für ein metallurgisches Gießgefäß, insbesondere eine Gießpfanne, mit einer in einem verschiebbaren Rahmen (9) gehaltenen, mindestens eine Ausgußöffnung (18) aufweisenden Schieberplatte (5), die gegen eine darüber angeordnete, mit einer Durchtrittsöffnung (19) versehene Kopfplatte (4) verschiebbar ist, wobei die Kopfplatte (4) an einer mit dem Boden (6) des Gießgefäßes verbundenen Montageplatte (7) festgelegt und der die Schieberplatte um-fassende Rahmen (9) innerhalb eines mit der Montageplatte (7) verbundenen Schiebergehäuses (8) in Schieberplatten-Verstellrichtung (36) hin- und herverschiebbar gelagert ist, und mit im Schieberplatten-Rahmen (9) angeordneten Anpreßelementen in Form von Federelementen (10), durch die die Schieberplatte (5) gegen die Kopfplatte (4) anpreßbar ist,
dadurch gekennzeichnet, daß
um den Schieberverschluß bzw. das Schiebergehäuse (8) herum ein gasdicht abschließbarer Kasten (11) gebaut ist, in den eine Inertgas-, insbesondere Argongas-Leitung (20) mündet, so daß innerhalb des Kastens (11) eine Inertgasumgebung herstellbar ist.Slider closure for a metallurgical pouring vessel, in particular a ladle, with a slider plate (5), which is held in a displaceable frame (9) and has at least one pouring opening (18), against a head plate (4) arranged above it and provided with a passage opening (19) is displaceable, the head plate (4) being fixed to a mounting plate (7) connected to the bottom (6) of the casting vessel and the frame (9) encompassing the slide plate within a slide housing (8) connected to the mounting plate (7) Slide plate adjustment direction (36) is mounted to slide back and forth, and with pressure elements arranged in the slide plate frame (9) in the form of spring elements (10), by means of which the slide plate (5) can be pressed against the head plate (4),
characterized in that
a gas-tight lockable box (11) is built around the slide closure or the slide housing (8), into which an inert gas, in particular argon gas line (20) opens, so that an inert gas environment can be produced within the box (11). Schieberverschluß nach Anspruch 1, dadurch gekennzeichnet, daß der das Schiebergehäuse (8) einschließende Rahmen (11) am Boden, insbesondere an einer Bodengrundplatte (6) des Gießgefäßes montiert ist, wobei die dem Boden des Gießgefäßes abgewandte bzw. untere Deckelplatte (21) an einer Seite des Kastens (11) angelenkt (Scharniergelenke 22) ist, so daß der Kasten (11) zur Montage bzw. Demontage der Schieber- und/oder Kopfplatte oder zur Wartung des Schieberverschlusses öffenbar, d. h. von außen her zugänglich ist.Slider closure according to claim 1, characterized in that the frame (11) enclosing the slide housing (8) is mounted on the floor, in particular on a base plate (6) of the casting vessel, the lower cover plate (21) facing away from the bottom of the casting vessel One side of the box (11) is articulated (hinge joints 22) so that the box (11) can be opened, that is accessible from the outside, for mounting or dismounting the slide and / or top plate or for maintenance of the slide closure. Schieberverschluß nach Anspruch 2, dadurch gekennzeichnet, daß die Deckelplatte (21) mit einer Umfangsdichtung (23) korrespondiert, die entweder an der Deckelplatte (21) und/oder am der Deckelplatte (21) zugewandten Rand (24) der Kastenseitenwände (25) angeordnet ist.Slider closure according to claim 2, characterized in that the cover plate (21) corresponds to a peripheral seal (23) which is arranged either on the cover plate (21) and / or on the edge (24) of the box side walls (25) facing the cover plate (21) is. Schieberverschluß nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der mit der Schieberplatte (5) verbundene Ausgußstutzen (26) sich fluiddicht durch den das Schiebergehäuse (8) umgebenden Kasten (11), insbesondere durch die Deckelplatte (21) desselben hindurcherstreckt.Slider closure according to one of claims 1 to 3, characterized in that the pouring spout (26) connected to the slider plate (5) extends fluid-tight through the box (11) surrounding the slider housing (8), in particular through the cover plate (21) thereof. Schieberverschluß nach Anspruch 4, dadurch gekennzeichnet, daß die Fluiddichtung zwischen Ausgußstutzen (26) oder einem daran angeschlossenen Tauchrohr (27) einerseits und dem Kasten (11) bzw. der Deckelplatte (21) desselben andererseits durch einen am Rand (28) der Kastenöffnung angeschlossenen, sich um den Ausgußstutzen (26) hülsenartig herumerstreckenden, aus hochtemperaturbeständigem Material hergestellten Federbalg (29) gebildet ist, dessen untere bzw. dem Gießgefäß abgewandte Rand (40) dichtend an der äußeren Mantelfläche des Ausgußstutzens (26) oder des daran angeschlossenen Tauchrohrs (27) anliegt.Slider closure according to claim 4, characterized in that the fluid seal between the pouring spout (26) or an immersion tube (27) connected to it on the one hand and the box (11) or the cover plate (21) thereof on the other hand by a connected to the edge (28) of the box opening , bellows (29) which extends around the pouring spout (26) in the manner of a sleeve and is made of high-temperature-resistant material, the lower edge (40) of which, facing away from the casting vessel, forms a seal on the outer circumferential surface of the pouring spout (26) or the dip tube (27 ) is present. Schieberverschluß nach Anspruch 5, dadurch gekennzeichnet, daß der Federbalg (29) durch einen Kupplungsring (30) vorspannbar ist unter gleichzeitiger fluiddichter Anlage des unteren bzw. dem Gießgefäß abgewandten Umfangsrandes (40) des Federbalges (29) an einer im Kupplungsring (30) angeordneten Ringdichtung (32), die unter der genannten Vorspannung auch fluiddicht gegen die äußere Mantelfläche des Ausgußstutzens (26) oder des daran angeschlossenen Tauchrohres (27) preßbar ist.Slider closure according to claim 5, characterized in that the bellows (29) can be pretensioned by a coupling ring (30) with simultaneous fluid-tight contact of the lower peripheral edge (40) of the bellows (29) facing away from the casting vessel on one arranged in the coupling ring (30) Ring seal (32), which can also be pressed in a fluid-tight manner against the outer circumferential surface of the pouring spout (26) or the immersion tube (27) connected to it under the aforementioned prestress. Schieberverschluß nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß der Federbalg (29) samt Kupplungsring (30) in bzw. an einem am Kasten (11) bzw. an der Deckelplatte (21) desselben in Schieberplatten-Verstellrichtung hin- und herverschiebbar gelagerten Gleitrahmen (33) montiert bzw. montierbar ist, wobei der Gleitrahmen (33) durch Dichtleisten (34) gegenüber dem Kasten (11) bzw. dessen Deckelplatte (21) abgedichtet ist.Slider closure according to claim 5 or 6, characterized in that the bellows (29) together with the coupling ring (30) in or on a sliding frame mounted on the box (11) or on the cover plate (21) of the same in the sliding plate adjustment direction and slidable (33) is mounted or can be mounted, the sliding frame (33) being sealed by sealing strips (34) with respect to the box (11) or its cover plate (21). Schieberverschluß nach Anspruch 7, dadurch gekennzeichnet, daß der am Kasten (11) verschiebbar gelagerte Gleitrahmen (33) mit dem Schieberplatten-Gleitrahmen (9) mechanisch gekoppelt ist, so daß beide Rahmen (9, 33) durch die Schieberplatten-Verstelleinrichtung (15, 16, 46, 17) gemeinsam hin- und herverschiebbar sind.Slider closure according to claim 7, characterized in that the sliding frame (33) slidably mounted on the box (11) is mechanically coupled to the sliding plate sliding frame (9) so that both frames (9, 33) are moved by the sliding plate adjusting device (15, 16, 46, 17) can be pushed back and forth together. Schieberverschluß nach einem oder mehreren der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß die Dekelplatte (21) durch Klemmkeile (34) in Dichtlage gehalten ist.Slider closure according to one or more of claims 2 to 8, characterized in that the cover plate (21) is held in the sealing position by clamping wedges (34).
EP90116177A 1990-03-13 1990-08-23 Sliding gate valve for a metallurgical vessel, especially a casting ladle Withdrawn EP0446406A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4007993 1990-03-13
DE19904007993 DE4007993A1 (en) 1990-03-13 1990-03-13 SLIDING CLOSURE FOR A METALLURGICAL CASTING CASE, ESPECIALLY A CASTING PAN

Publications (1)

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EP0446406A1 true EP0446406A1 (en) 1991-09-18

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ID=6402100

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FR2732916A1 (en) * 1995-04-14 1996-10-18 Vesuvius France Sa Airtight slide valve for controlling flow of molten metal from vessel such as ladle or tundish
DE10235066A1 (en) * 2002-07-31 2004-02-26 Intocast Ag Sliding nozzle brick for metallurgical vessel used to transport alloy and cast melts has a rinsing gas connection containing an opening for the rinsing gas
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DE10213041C1 (en) * 2002-03-22 2003-11-13 Uwe Bovenschen Sliding closure system for a casting ladle has an emergency closure device with an operating element and a shearing element arranged below the steel casing of the base of the ladle
EP2091679B1 (en) * 2006-11-08 2011-05-18 Stopinc Aktiengesellschaft Device for a container for nonferrous molten metal, having a locking unit and a protective cap
DE202015103079U1 (en) 2015-06-12 2015-07-01 Knöllinger FLO-TEC GmbH Slider closure for a metallurgical container
DE102020111695B3 (en) 2020-04-29 2021-07-15 Knöllinger FLO-TEC GmbH Slide gate valve with internal sealing body and method for its assembly

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GB2295978A (en) * 1994-12-16 1996-06-19 Concast Standard Ag Supplying steel to a continuous casting mould
GB2295978B (en) * 1994-12-16 1998-07-15 Concast Standard Ag Arrangement for supplying steel into a continuous casting mould
FR2732916A1 (en) * 1995-04-14 1996-10-18 Vesuvius France Sa Airtight slide valve for controlling flow of molten metal from vessel such as ladle or tundish
DE10235066A1 (en) * 2002-07-31 2004-02-26 Intocast Ag Sliding nozzle brick for metallurgical vessel used to transport alloy and cast melts has a rinsing gas connection containing an opening for the rinsing gas
DE10235066B4 (en) * 2002-07-31 2004-07-22 Intocast Ag Spool hole stone
US8012405B2 (en) 2004-11-26 2011-09-06 Heraeus Electro-Nite International N.V. Regulation method for melt throughflow through a melt throughflow aperture
US8273288B2 (en) * 2004-11-26 2012-09-25 Rhi Ag Regulation method for throughflow and bottom nozzle of a metallurgical vessel
WO2013000880A1 (en) * 2011-06-27 2013-01-03 Knöllinger FLO-TEC GmbH Sliding closure for a metallurgical casting vessel, in particular a casting ladle
EP2979778A1 (en) 2011-06-27 2016-02-03 Knollinger Flo-Tec GMBH Sliding closure for a metallurgical casting vessel, in particular a casting ladle
DE202011111055U1 (en) 2011-06-27 2018-12-12 Knöllinger FLO-TEC GmbH Slide closure for a metallurgical casting vessel, in particular ladle

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