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EP0498684A1 - Ejecting device for the supporting arrangement of a pouring stream protective tube in a continuous casting machine - Google Patents

Ejecting device for the supporting arrangement of a pouring stream protective tube in a continuous casting machine Download PDF

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Publication number
EP0498684A1
EP0498684A1 EP92400045A EP92400045A EP0498684A1 EP 0498684 A1 EP0498684 A1 EP 0498684A1 EP 92400045 A EP92400045 A EP 92400045A EP 92400045 A EP92400045 A EP 92400045A EP 0498684 A1 EP0498684 A1 EP 0498684A1
Authority
EP
European Patent Office
Prior art keywords
protective tube
latches
movable rod
ladle
manipulator
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
Application number
EP92400045A
Other languages
German (de)
French (fr)
Other versions
EP0498684B1 (en
Inventor
Francis Chabot
Gérard Zurita
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.)
Sollac SA
Original Assignee
Sollac SA
Lorraine de Laminage Continu SA SOLLAC
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 Sollac SA, Lorraine de Laminage Continu SA SOLLAC filed Critical Sollac SA
Publication of EP0498684A1 publication Critical patent/EP0498684A1/en
Application granted granted Critical
Publication of EP0498684B1 publication Critical patent/EP0498684B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the present invention relates to a device for ejecting a jet protective tube support located between the ladle and the liquid metal distributor of a continuous casting installation.
  • This tube fixed at the end of the ladle's pouring hole, is immersed in the distributor in order to guide the jet, to avoid renitriding of the metal and its oxidation due to its contact with air, and to avoid entrainment of dross and slag present on the surface of the liquid metal contained in the distributor either towards the bottom, due to the emulsion generated by the fall of the metal from the ladle towards the distributor, or towards the outside from the dispenser due to possible splashes due to said fall.
  • the jet protective tube is integral with a support member which is itself connected to a manipulator allowing this protective tube to be brought below the ladle.
  • the pouring ladle is provided at its bottom with a pouring hole with a vertical axis comprising a shutter drawer and means of temporary securing with the jet protective tube such as a nozzle ensuring sealing.
  • the protective tube is brought by the manipulator below the ladle and held with it in the axis of the tap hole.
  • the present invention therefore relates to a device for supporting the protective jet tube of a continuous casting installation overcomes these drawbacks and allowing, in the event of incidents, an automatic ejection of the protective tube in order to release the ladle and the manipulator for their emergency evacuation.
  • the present invention relates to a jet protective tube support ejection device located between the ladle and the liquid metal distributor of a continuous casting installation, said device comprising a support member for the protective tube connected to a manipulator intended to bring the protective tube below the ladle, said ladle being equipped with means of temporary attachment to said protective tube, characterized in that the support member comprises a first element integral with said protective tube and a second element integral with said manipulator and automatic means for locking and unlocking said elements together allowing the ejection of said jet protective tube from the ladle casting incidents.
  • a continuous casting installation is composed of a casting ladle 1 supported for example by a gantry not shown, and containing liquid metal 2.
  • the ladle 1 is arranged above a distributor or distributor 3 supported by a casting floor 4 by suitable means. Between the ladle 1 and the distributor 3, the metal is guided by a jet protective tube 5.
  • the ladle 1 is of known type and provided at its bottom with a tap hole 6, of circular vertical axis and comprising, on the one hand, a shutter drawer 7 and, on the other hand, means 8 for momentary attachment of the protective tube 5 such as a nozzle ensuring sealing.
  • the distributor 3, located under the ladle 1, is filled with a bath of liquid metal 9 and is provided at its bottom with a hole 10 connected in known manner to a continuous casting line 11.
  • the jet protective tube 5 is a vertical tube of axis coincident with the axis of the tap hole 6 of the bag 1 and its lower end plunges into the bath 9 of liquid metal of the distributor 3 in order to avoid in particular the re-nitriding of the metal and its oxidation due to its contact with air.
  • the jet protective tube 5 is connected to a support member designated as a whole by the reference 20 which is itself supported by a manipulator 12 intended to bring said protective tube below the taphole 6 of the bag 1.
  • the manipulator 12 moves in a direction perpendicular to the tap hole 6 on a floor 13 located at the top of the distributor 3.
  • This support member 20 consists of a first tubular element 21, integral with the protective tube 5 by fixing lugs 22 and a second tubular element 23 integral with the manipulator 12.
  • the face of the first element 21 opposite the protective tube 5 is provided with a crown 24 intended to be applied in a groove 25 provided on the end 23a of the second element 23.
  • the support member 20 is provided with automatic means for locking and unlocking the elements 21 and 23 between them allowing the separation of said elements and the ejection of the jet protective tube 5 from the ladle 1 in the event casting incidents.
  • These locking and unlocking means comprise at least two latches 25 mounted articulated on the end 23a of the second element 23.
  • the number of latches 25 is preferably three or four uniformly distributed over the end 23a.
  • the latches 25 are rotated by a control member 26 between a first position for blocking the first element 21 with the second element 23 (Fig. 2) and a second position for releasing the first element 21 (Fig. 3).
  • the control member 26 is formed by a movable rod 27 supported by the second element 23 and by a jack 28 for moving said rod.
  • This cylinder 28 comprises, in a conventional manner, a body 28a in which a piston 27b moves, providing two chambers in said body, said piston being integral with a cylinder rod 29, the free end of which is connected to the end 27a of the movable rod 27.
  • This movable rod 27 comprises a first part 27c for holding the latches 25 in the first position for blocking the first element 21 on the second element 23 and a second part 27c for tilting said locks in the second position for releasing the first element 21.
  • the second part 27c extends the first part 27b on the side of the free end of the movable rod 27 and is formed for example by a truncated cone whose slope is directed towards said free end.
  • the movable rod 27 also includes, at its free end, a plate 30 for holding the latches 25 in the second position for releasing the first element 21 relative to the second element 23.
  • the end 23a of the second element 23 intended to receive the first element 21 is provided with at least two deflectors 31 to avoid the hooking of this first element 21 with the latches 25 when the elements 21 and 23 are separated and the protective tube is ejected jet 5.
  • the device operates as follows.
  • the protective tube 5 is hung under the ladle 1 at the level of the tap hole 6, and the two elements 21 and 23 of the support member 20 are joined together by the latches 25.
  • each end 25a of the latches 25 cooperates with the first part 27b of the movable rod 27, so that each opposite end 25b of the said latches blocks the first element 21 on the second element 23.
  • a pressurized fluid is sent into the jack 28 on the side of the jack rod 29, which has the effect of driving the movable rod 27.
  • each end 25a of the latches 25 slides on the second conical part 27c of the movable rod 27 and the plate 30 rotates the latches 25 in a retracted position, thus releasing the first element 21 and causing the automatic ejection of the protective tube 5 which allows rapid evacuation of the ladle.
  • the desired objective is therefore achieved effectively and by particularly simple and inexpensive means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Joints With Sleeves (AREA)
  • Continuous Casting (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The subject of the present invention is a support ejection device for a stream-protector tube (5), located between the pouring ladle (1) and the tundish (3) of molten metal of a continuous-casting installation. The device comprises a support member (20) of the protector tube (5) connected to a manipulator (12) intended to bring the protector tube (5) underneath the pouring ladle (1) and the pouring ladle (1) is equipped with means for temporary joining with the said protector tube, such as a nozzle providing a seal. The support member (20) comprises a first element (21) integral with the protector tube (5) and a second element (23) integral with the manipulator (12) and automatic means for mutually locking and unlocking the elements (21, 23), permitting the ejection of the stream-protector tube (5) from the pouring ladle (1) in the event of mishaps during casting.

Description

La présente invention concerne un dispositif d'éjection de support de tube protecteur de jet situé entre la poche de coulée et le distributeur de métal liquide d'une installation de coulée continue.The present invention relates to a device for ejecting a jet protective tube support located between the ladle and the liquid metal distributor of a continuous casting installation.

Dans les installations de coulée continue, l'écoulement du métal liquide entre la poche de coulée et le distributeur s'effectue par passage dans un tube protecteur de jet.In continuous casting installations, the flow of liquid metal between the ladle and the distributor takes place by passage through a jet protective tube.

Ce tube fixé à l'extrémité du trou de coulée de la poche, est plongé dans le distributeur afin de guider le jet, d'éviter la renitruration du métal et son oxydation du fait de son contact avec l'air, et d'éviter l'entraînement des crasses et du laitier présent à la surface du métal liquide contenu dans le distributeur soit vers le fond, du fait de l'émulsion engendrée par la chute du métal de la poche de coulée vers le distributeur, soit vers l'extérieur du distributeur du fait des éclaboussures éventuelles dues à ladite chute.This tube, fixed at the end of the ladle's pouring hole, is immersed in the distributor in order to guide the jet, to avoid renitriding of the metal and its oxidation due to its contact with air, and to avoid entrainment of dross and slag present on the surface of the liquid metal contained in the distributor either towards the bottom, due to the emulsion generated by the fall of the metal from the ladle towards the distributor, or towards the outside from the dispenser due to possible splashes due to said fall.

Le tube protecteur de jet est solidaire d'un organe support qui est lui-même relié à un manipulateur permettant d'amener ce tube protecteur au-dessous de la poche de coulée.The jet protective tube is integral with a support member which is itself connected to a manipulator allowing this protective tube to be brought below the ladle.

La poche de coulée est munie dans son fond d'un trou de coulée d'axe vertical comportant un tiroir obturateur et des moyens de solidarisation momentanée avec le tube protecteur de jet tels qu'une busette assurant l'étanchéité.The pouring ladle is provided at its bottom with a pouring hole with a vertical axis comprising a shutter drawer and means of temporary securing with the jet protective tube such as a nozzle ensuring sealing.

Au moment de la coulée du métal liquide, le tube protecteur est amené par le manipulateur au-dessous de la poche de coulée et maintenu avec celle-ci dans l'axe du trou de coulée.When the molten metal is poured, the protective tube is brought by the manipulator below the ladle and held with it in the axis of the tap hole.

En cas d'incidents au moment de la coulée, comme par exemple, une résurgence de métal liquide au col de connection du tube protecteur de jet avec la busette ou une infiltration de métal liquide au niveau du tiroir obturateur créant un soudage du tube protecteur sur ce tiroir, il est nécessaire de désolidariser rapidement le tube protecteur et d'évacuer en urgence la poche de coulée et le manipulateur dudit tube protecteur.In the event of incidents during casting, such as a resurgence of liquid metal at the connection neck of the jet protective tube with the nozzle or liquid metal infiltration at the shutter drawer creating a welding of the protective tube on this drawer, it is necessary to quickly separate the protective tube and urgently evacuate the ladle and the manipulator of said protective tube.

Or, les dispositifs supports utilisés jusqu'à présent ne permettent pas une évacuation rapide du manipulateur du tube protecteur de jet, sinon manuellement ce qui pose des problèmes de sécurité pour l'opérateur, notamment à cause des projections de métal liquide, et de rapidité d'évacuation du matériel.However, the support devices used until now do not allow rapid evacuation of the manipulator from the jet protective tube, if not manually, which poses safety problems for the operator, in particular because of projections of liquid metal, and of speed equipment evacuation.

La présente invention a donc pour objet un dispositif de support du tube protecteur de jet d'une installation de coulée continue remédiant à ces inconvénients et permettant, en cas d'incidents, une éjection automatique du tube protecteur afin de libérer la poche de coulée et le manipulateur pour leur évacuation d'urgence.The present invention therefore relates to a device for supporting the protective jet tube of a continuous casting installation overcomes these drawbacks and allowing, in the event of incidents, an automatic ejection of the protective tube in order to release the ladle and the manipulator for their emergency evacuation.

La présente invention concerne un dispositif d'éjection de support de tube protecteur de jet situé entre la poche de coulée et le distributeur de métal liquide d'une installation de coulée continue, ledit dispositif comprenant un organe support du tube protecteur relié à un manipulateur destiné à amener le tube protecteur au-dessous de la poche de coulée, ladite poche de coulée étant équipée de moyens de solidarisation momentanée avec ledit tube protecteur, caractérisé en ce que l'organe support comprend un premier élément solidaire dudit tube protecteur et un second élément solidaire dudit manipulateur et des moyens automatiques de verrouillage et de déverrouillage desdits éléments entre eux permettant l'éjection dudit tube protecteur de jet de la poche de coulée en cas d'incidents de coulée.The present invention relates to a jet protective tube support ejection device located between the ladle and the liquid metal distributor of a continuous casting installation, said device comprising a support member for the protective tube connected to a manipulator intended to bring the protective tube below the ladle, said ladle being equipped with means of temporary attachment to said protective tube, characterized in that the support member comprises a first element integral with said protective tube and a second element integral with said manipulator and automatic means for locking and unlocking said elements together allowing the ejection of said jet protective tube from the ladle casting incidents.

Selon d'autres caractéristiques de l'invention :

  • les moyens automatiques de verrouillage et de déverrouillage comprennent au moins deux verrous articulés à l'extrémité du second élément destiné à recevoir le premier élément,
  • lesdits verrous sont entraînés en rotation sur un organe de commande entre une première position de blocage dudit premier élément avec ledit second élément et une seconde position de libération dudit premier élément,
  • l'organe de commande est formé par une tige mobile supportée par ledit second élément solidaire du manipulateur,
  • la tige mobile a une de ses extrémités reliées à un vérin de déplacement de ladite tige mobile,
  • la tige mobile comporte une première partie de maintien desdits verrous dans la première position de blocage dudit premier élément avec ledit second élément et une seconde partie de basculement desdits verrous dans la seconde position de libération dudit premier élément, ladite seconde partie prolongeant ladite première partie du côté de l'extrémité libre de la tige mobile,
  • ladite seconde partie est formée par un tronc de cône dont la pente est dirigée vers l'extrémité libre de la tige mobile,
  • la tige mobile comporte à son extrémité libre une plaque de maintien desdits verrous dans la seconde position de libération dudit premier élément,
  • l'extrémité du second élément destinée à recevoir le premier élément de l'organe support est pourvue d'au moins deux déflecteurs pour éviter l'accrochage dudit premier élément avec lesdits verrous au moment de l'éjection du tube protecteur de jet.
According to other characteristics of the invention:
  • the automatic locking and unlocking means comprise at least two locks articulated at the end of the second element intended to receive the first element,
  • said latches are driven in rotation on a control member between a first position for blocking said first element with said second element and a second position for releasing said first element,
  • the control member is formed by a movable rod supported by said second element integral with the manipulator,
  • the mobile rod has one of its ends connected to a displacement cylinder of said mobile rod,
  • the movable rod comprises a first part for holding said latches in the first position for blocking said first element with said second element and a second part for tilting said latches in the second position for releasing said first element, said second part extending said first part of the side of the free end of the movable rod,
  • said second part is formed by a truncated cone, the slope of which is directed towards the free end of the movable rod,
  • the movable rod comprises at its free end a plate for holding said latches in the second position for releasing said first element,
  • the end of the second element intended to receive the first element of the support member is provided with at least two deflectors to prevent the attachment of said first element with said latches when the jet protective tube is ejected.

L'invention va être décrite plus en détails ci-dessous en se référant aux dessins annexés, donnés uniquement à titre d'exemple, et dans lesquels :

  • la Fig. 1 est une vue schématique d'une installation de coulée continue,
  • la Fig. 2 est une vue en coupe longitudinale de l'organe support du tube protecteur de jet en position connectée,
  • la Fig. 3 est une vue en coupe longitudinale de l'organe support de tube protecteur de jet en position déconnectée.
The invention will be described in more detail below with reference to the accompanying drawings, given solely by way of example, and in which:
  • Fig. 1 is a schematic view of a continuous casting installation,
  • Fig. 2 is a view in longitudinal section of the support member of the jet protective tube in the connected position,
  • Fig. 3 is a view in longitudinal section of the jet protection tube support member in the disconnected position.

Comme représenté sur la Fig. 1, une installation de coulée continue est composée d'une poche de coulée 1 supportée par exemple par un portique non représenté, et contenant du métal liquide 2.As shown in Fig. 1, a continuous casting installation is composed of a casting ladle 1 supported for example by a gantry not shown, and containing liquid metal 2.

La poche de coulée 1 est disposée au-dessus d'un distributeur ou répartiteur 3 supporté par un plancher de coulée 4 par des moyens appropriés. Entre la poche de coulée 1 et le distributeur 3, le métal est guidé par un tube protecteur de jet 5.The ladle 1 is arranged above a distributor or distributor 3 supported by a casting floor 4 by suitable means. Between the ladle 1 and the distributor 3, the metal is guided by a jet protective tube 5.

La poche de coulée 1 est de type connu et munie dans son fond d'un trou de coulée 6, d'axe vertical circulaire et comportant, d'une part, un tiroir obturateur 7 et, d'autre part, des moyens 8 de solidarisation momentanée du tube protecteur 5 tels qu'une busette assurant l'étanchéité.The ladle 1 is of known type and provided at its bottom with a tap hole 6, of circular vertical axis and comprising, on the one hand, a shutter drawer 7 and, on the other hand, means 8 for momentary attachment of the protective tube 5 such as a nozzle ensuring sealing.

Le distributeur 3, situé sous la poche de coulée 1, est rempli d'un bain de métal liquide 9 et est muni dans son fond d'un trou 10 relié de manière connue à une ligne de coulée continue 11.The distributor 3, located under the ladle 1, is filled with a bath of liquid metal 9 and is provided at its bottom with a hole 10 connected in known manner to a continuous casting line 11.

Le tube protecteur de jet 5 est une tube vertical d'axe confondu avec l'axe du trou de coulée 6 de la poche 1 et son extrémité inférieure plonge dans le bain 9 de métal liquide du distributeur 3 afin d'éviter notamment la renitruration du métal et son oxydation du fait de son contact avec l'air.The jet protective tube 5 is a vertical tube of axis coincident with the axis of the tap hole 6 of the bag 1 and its lower end plunges into the bath 9 of liquid metal of the distributor 3 in order to avoid in particular the re-nitriding of the metal and its oxidation due to its contact with air.

Le tube protecteur de jet 5 est relié à un organe support désigné dans son ensemble par la référence 20 qui est lui-même supporté par un manipulateur 12 destiné à amener ledit tube protecteur au-dessous du trou de coulée 6 de la poche 1.The jet protective tube 5 is connected to a support member designated as a whole by the reference 20 which is itself supported by a manipulator 12 intended to bring said protective tube below the taphole 6 of the bag 1.

Le manipulateur 12 se déplace dans une direction perpendiculaire au trou de coulée 6 sur un plancher 13 situé au niveau de la partie supérieure du distributeur 3.The manipulator 12 moves in a direction perpendicular to the tap hole 6 on a floor 13 located at the top of the distributor 3.

En se reportant maintenant aux Figs 2 et 3, on va décrire plus en détails l'organe support 20 du tube protecteur de jet 5.Referring now to FIGS. 2 and 3, the support member 20 of the jet protective tube 5 will be described in more detail.

Cet organe support 20 se compose d'un premier élément 21 tubulaire, solidaire du tube protecteur 5 par des pattes de fixation 22 et d'un second élément 23 tubulaire solidaire du manipulateur 12.This support member 20 consists of a first tubular element 21, integral with the protective tube 5 by fixing lugs 22 and a second tubular element 23 integral with the manipulator 12.

La face du premier élément 21 opposée au tube protecteur 5, est munie d'une couronne 24 destinée à venir s'appliquer dans une gorge 25 prévue sur l'extrémité 23a du second élément 23.The face of the first element 21 opposite the protective tube 5 is provided with a crown 24 intended to be applied in a groove 25 provided on the end 23a of the second element 23.

D'autre part, l'organe support 20 est pourvu de moyens automatiques de verrouillage et de déverrouillage des éléments 21 et 23 entre eux permettant la séparation desdits éléments et l'éjection du tube protecteur de jet 5 de la poche de coulée 1 en cas d'incidents de coulée.On the other hand, the support member 20 is provided with automatic means for locking and unlocking the elements 21 and 23 between them allowing the separation of said elements and the ejection of the jet protective tube 5 from the ladle 1 in the event casting incidents.

Ces moyens de verrouillage et de déverrouillage comprennent au moins deux verrous 25 montés articulés sur l'extrémité 23a du second élément 23.These locking and unlocking means comprise at least two latches 25 mounted articulated on the end 23a of the second element 23.

Le nombre de verrous 25 est de préférence de trois ou quatre uniformément répartis sur l'extrémité 23a.The number of latches 25 is preferably three or four uniformly distributed over the end 23a.

Les verrous 25 sont entraînés en rotation par un organe de commande 26 entre une première position de blocage du premier élément 21 avec le second élément 23 (Fig. 2) et une seconde position de libération du premier élément 21 (Fig. 3).The latches 25 are rotated by a control member 26 between a first position for blocking the first element 21 with the second element 23 (Fig. 2) and a second position for releasing the first element 21 (Fig. 3).

L'organe de commande 26 est formé par une tige mobile 27 supportée par le second élément 23 et par un vérin 28 de déplacement de ladite tige.The control member 26 is formed by a movable rod 27 supported by the second element 23 and by a jack 28 for moving said rod.

Ce vérin 28 comporte, de manière classique, un corps 28a dans lequel se déplace un piston 27b ménageant deux chambres dans ledit corps, ledit piston étant solidaire d'une tige de vérin 29 dont l'extrémité libre est reliée à l'extrémité 27a de la tige mobile 27.This cylinder 28 comprises, in a conventional manner, a body 28a in which a piston 27b moves, providing two chambers in said body, said piston being integral with a cylinder rod 29, the free end of which is connected to the end 27a of the movable rod 27.

Cette tige mobile 27 comporte une première partie 27c de maintien des verrous 25 dans la première position de blocage du premier élément 21 sur le second élément 23 et une seconde partie 27c de basculement desdits vérrous dans la seconde position de libération du premier élément 21.This movable rod 27 comprises a first part 27c for holding the latches 25 in the first position for blocking the first element 21 on the second element 23 and a second part 27c for tilting said locks in the second position for releasing the first element 21.

La seconde partie 27c prolonge la première partie 27b du côté de l'extrémité libre de la tige mobile 27 et est formée par exemple par un tronc de cône dont la pente est dirigée vers ladite extrémité libre.The second part 27c extends the first part 27b on the side of the free end of the movable rod 27 and is formed for example by a truncated cone whose slope is directed towards said free end.

La tige mobile 27 comporte également à son extrémité libre, une plaque 30 de maintien des verrous 25 dans la seconde position de libération du premier élément 21 par rapport au second élément 23.The movable rod 27 also includes, at its free end, a plate 30 for holding the latches 25 in the second position for releasing the first element 21 relative to the second element 23.

Par ailleurs, l'extrémité 23a du second élément 23 destinée à recevoir le premier élément 21 est pourvue d'au moins deux déflecteurs 31 pour éviter l'accrochage de ce premier élément 21 avec les verrous 25 au moment de la séparation des éléments 21 et 23 et de l'éjection du tube protecteur de jet 5.Furthermore, the end 23a of the second element 23 intended to receive the first element 21 is provided with at least two deflectors 31 to avoid the hooking of this first element 21 with the latches 25 when the elements 21 and 23 are separated and the protective tube is ejected jet 5.

Le dispositif fonctionne de la manière suivante.The device operates as follows.

Pendant la coulée du métal liquide, le tube protecteur 5 est accroché sous la poche 1 au niveau de trou de coulée 6, et les deux éléments 21 et 23 de l'organe support 20 sont solidarisés entre eux par les verrous 25.During the pouring of the liquid metal, the protective tube 5 is hung under the ladle 1 at the level of the tap hole 6, and the two elements 21 and 23 of the support member 20 are joined together by the latches 25.

Pour cela la tige 27, sous l'action du vérin 28, est en position sortie comme représenté sur la Fig. 2.For this, the rod 27, under the action of the jack 28, is in the extended position as shown in FIG. 2.

Ainsi, chaque extrémité 25a des verrous 25 coopère avec la première partie 27b de la tige mobile 27, si bien que chaque extrémité opposée 25b desdits verrous bloque le premier élément 21 sur le second élément 23.Thus, each end 25a of the latches 25 cooperates with the first part 27b of the movable rod 27, so that each opposite end 25b of the said latches blocks the first element 21 on the second element 23.

En cas d'incidents de coulée, un fluide sous pression est envoyé dans le vérin 28 du côté de la tige de vérin 29 ce qui a pour effet d'entraîner la tige mobile 27.In the event of casting incidents, a pressurized fluid is sent into the jack 28 on the side of the jack rod 29, which has the effect of driving the movable rod 27.

De ce fait, chaque extrémité 25a des verrous 25 glisse sur la seconde partie conique 27c de la tige mobile 27 et la plaque 30 entraîne par rotation les verrous 25 dans une position escamotée, libérant ainsi le premier élément 21 et provoquant l'éjection automatique du tube protecteur 5 ce qui permet l'évacuation rapide de la poche de coulée.Therefore, each end 25a of the latches 25 slides on the second conical part 27c of the movable rod 27 and the plate 30 rotates the latches 25 in a retracted position, thus releasing the first element 21 and causing the automatic ejection of the protective tube 5 which allows rapid evacuation of the ladle.

L'objectif recherché est donc atteint de façon efficace et par des moyens particulièrement simples et peu onéreux.The desired objective is therefore achieved effectively and by particularly simple and inexpensive means.

Claims (9)

Dispositif d'éjection de support de tube protecteur de jet (5) situé entre la poche de coulée (1) et le distributeur (3) de métal liquide d'une installation de coulée continue, ledit dispositif comprenant un organe support (20) du tube protecteur (5) relié à un manipulateur (12) destiné à amener le tube protecteur (5) au-dessous de la poche de coulée (1), ladite poche de coulée (1) étant équipée de moyens de solidarisation momentanée avec ledit tube protecteur (5), caractérisé en ce que l'organe support (20) comprend un premier élément (21) solidaire dudit tube protecteur (5) et un second élément (23) solidaire dudit manipulateur (12) et des moyens (25, 26, 17, 18) automatiques de verrouillage et de déverrouillage desdits éléments (21, 23) entre eux permettant l'éjection dudit tube protecteur de jet (5) de la poche de coulée (1) en cas d'incidents de coulée.Jet protective tube support ejection device (5) located between the ladle (1) and the distributor (3) of liquid metal of a continuous casting installation, said device comprising a support member (20) of the protective tube (5) connected to a manipulator (12) intended to bring the protective tube (5) below the ladle (1), said ladle (1) being equipped with means for temporarily securing with said tube protector (5), characterized in that the support member (20) comprises a first element (21) integral with said protective tube (5) and a second element (23) integral with said manipulator (12) and means (25, 26 , 17, 18) automatic locking and unlocking of said elements (21, 23) between them allowing the ejection of said jet protective tube (5) from the ladle (1) in the event of casting incidents. Dispositif selon la revendication 1, caractérisé en ce que les moyens automatiques de verrouillage et de déverrouillage comprennent au moins deux verrous (25) montés articulés à l'extrémité (23a) du second élément (23) destinée à recevoir le premier élément (21).Device according to claim 1, characterized in that the automatic locking and unlocking means comprise at least two latches (25) mounted articulated at the end (23a) of the second element (23) intended to receive the first element (21) . Dispositif selon la revendication 2, caractérisé en ce que lesdits verrous (25) sont entraînés en rotation par un organe de commande (26) entre une première position de blocage du premier élément (21) avec ledit second élément (23) et une seconde position de libération dudit premier élément (21).Device according to claim 2, characterized in that said latches (25) are rotated by a control member (26) between a first position for blocking the first element (21) with said second element (23) and a second position for releasing said first element (21). Dispositif selon la revendication 3, caractérisé en ce que l'organe de commande (26) est formé par une tige mobile (27) supportée par ledit second élément (23) solidaire du manipulateur (12).Device according to claim 3, characterized in that the control member (26) is formed by a movable rod (27) supported by said second element (23) integral with the manipulator (12). Dispositif selon la revendication 4, caractérisé en ce que la tige mobile (27) a une de ses extrémités reliée à un vérin (28) de déplacement de ladite tige mobile (27).Device according to claim 4, characterized in that the movable rod (27) has one of its ends connected to a jack (28) for moving said movable rod (27). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige mobile (27) comporte une première partie (27b) de maintien desdits verrous (25) dans la première position de blocage dudit premier élément (21) avec ledit second élément (23) et une seconde partie (27c) de basculement desdits verrous (25) dans la seconde position de libération dudit premier élément (21), ladite seconde partie (27c) prolongeant ladite première partie (27b) du côté de l'extrémité libre de la tige mobile (27).Device according to any one of the preceding claims, characterized in that the movable rod (27) has a first part (27b) for holding said latches (25) in the first position for blocking said first element (21) with said second element (23) and a second part (27c) for tilting said latches (25) in the second position for releasing said first element (21), said second part (27c) extending said first part (27b) on the side of the free end of the movable rod (27). Dispositif selon la revendication 6, caractérisé en ce que ladite seconde partie (27c) est formée par un tronc de cône dont la pente est dirigée vers l'extrémité libre de la tige mobile (27).Device according to claim 6, characterized in that said second part (27c) is formed by a truncated cone whose slope is directed towards the free end of the movable rod (27). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige mobile (27) comporte, à son extrémité libre, une plaque (30) de maintien desdits verrous (25) dans la seconde position de libération dudit premier élément (21).Device according to any one of the preceding claims, characterized in that the movable rod (27) comprises, at its free end, a plate (30) for holding said latches (25) in the second position for releasing said first element (21 ). Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité (23a) du second élément (23) destinée à recevoir le premier élément (21) de l'organe de support (20) est pourvue d'au moins deux déflecteurs (31) pour éviter l'accrochage dudit premier élément (21) avec lesdits verrous (25) au moment de l'éjection du tube protecteur de jet (5).Device according to any one of the preceding claims, characterized in that the end (23a) of the second element (23) intended to receive the first element (21) of the support member (20) is provided with at least two deflectors (31) to prevent the attachment of said first element (21) with said latches (25) when the jet protective tube (5) is ejected.
EP92400045A 1991-02-07 1992-01-08 Ejecting device for the supporting arrangement of a pouring stream protective tube in a continuous casting machine Expired - Lifetime EP0498684B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101388A FR2672526B1 (en) 1991-02-07 1991-02-07 DEVICE FOR EJECTING A JET PROTECTIVE TUBE SUPPORT IN A CONTINUOUS CASTING INSTALLATION.
FR9101388 1991-02-07

Publications (2)

Publication Number Publication Date
EP0498684A1 true EP0498684A1 (en) 1992-08-12
EP0498684B1 EP0498684B1 (en) 1996-04-24

Family

ID=9409449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400045A Expired - Lifetime EP0498684B1 (en) 1991-02-07 1992-01-08 Ejecting device for the supporting arrangement of a pouring stream protective tube in a continuous casting machine

Country Status (7)

Country Link
US (1) US5219515A (en)
EP (1) EP0498684B1 (en)
JP (1) JPH0569100A (en)
KR (1) KR920016175A (en)
AT (1) ATE137149T1 (en)
DE (1) DE69210068T2 (en)
FR (1) FR2672526B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010057645A1 (en) * 2008-11-20 2010-05-27 Vesuvius Group S.A. Transport and storage device for ladle pipe for transferring liquid metal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10046390B2 (en) 2013-10-14 2018-08-14 Vesuvius Group S.A. Coupling device for reversibly coupling a ladle shroud to a collector nozzle, self-supported ladle shroud, kit thereof and method for coupling a ladle shroud to a collector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378590A1 (en) * 1977-01-27 1978-08-25 Uss Eng & Consult MOUNTING APPARATUS FOR A CASTING TUBE FROM AN IN-SOURCE CASTING TANK
FR2441449A1 (en) * 1978-11-17 1980-06-13 Georgetown Texas Steel Corp SUSPENDED GAS PROTECTION SHIRT FOR CONTINUOUS CASTING OF STEEL
GB2171348A (en) * 1985-02-23 1986-08-28 Stopinc Ag Attaching a pouring tube below a metallurgical vessel

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Publication number Priority date Publication date Assignee Title
US4381102A (en) * 1979-10-29 1983-04-26 Flo-Con Systems, Inc. Shroud support and method for shroud engagement with teeming valve
US4262827A (en) * 1979-12-26 1981-04-21 Bethlehem Steel Corporation Ladle shroud apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378590A1 (en) * 1977-01-27 1978-08-25 Uss Eng & Consult MOUNTING APPARATUS FOR A CASTING TUBE FROM AN IN-SOURCE CASTING TANK
FR2441449A1 (en) * 1978-11-17 1980-06-13 Georgetown Texas Steel Corp SUSPENDED GAS PROTECTION SHIRT FOR CONTINUOUS CASTING OF STEEL
GB2171348A (en) * 1985-02-23 1986-08-28 Stopinc Ag Attaching a pouring tube below a metallurgical vessel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010057645A1 (en) * 2008-11-20 2010-05-27 Vesuvius Group S.A. Transport and storage device for ladle pipe for transferring liquid metal
US8820592B2 (en) 2008-11-20 2014-09-02 Vesuvius Group S.A. Ladle shroud transport/storage device for transferring liquid metal

Also Published As

Publication number Publication date
KR920016175A (en) 1992-09-24
FR2672526A1 (en) 1992-08-14
DE69210068T2 (en) 1996-10-02
JPH0569100A (en) 1993-03-23
DE69210068D1 (en) 1996-05-30
ATE137149T1 (en) 1996-05-15
EP0498684B1 (en) 1996-04-24
FR2672526B1 (en) 1993-05-28
US5219515A (en) 1993-06-15

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