EP0250387A2 - Installation for controlling an outlet pipe of a pouring ladle - Google Patents

Installation for controlling an outlet pipe of a pouring ladle Download PDF

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Publication number
EP0250387A2
EP0250387A2 EP87870073A EP87870073A EP0250387A2 EP 0250387 A2 EP0250387 A2 EP 0250387A2 EP 87870073 A EP87870073 A EP 87870073A EP 87870073 A EP87870073 A EP 87870073A EP 0250387 A2 EP0250387 A2 EP 0250387A2
Authority
EP
European Patent Office
Prior art keywords
ladle
arm
ring
pivot
controlling
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
EP87870073A
Other languages
German (de)
French (fr)
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EP0250387A3 (en
EP0250387B1 (en
Inventor
Antoine Augustin Novello
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.)
ArcelorMittal Liege Upstream SA
Original Assignee
Cockerill Sambre SA
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
Priority claimed from BE6/48231A external-priority patent/BE904940A/en
Application filed by Cockerill Sambre SA filed Critical Cockerill Sambre SA
Priority to AT87870073T priority Critical patent/ATE52434T1/en
Publication of EP0250387A2 publication Critical patent/EP0250387A2/en
Publication of EP0250387A3 publication Critical patent/EP0250387A3/en
Application granted granted Critical
Publication of EP0250387B1 publication Critical patent/EP0250387B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D41/50—Pouring-nozzles
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle

Definitions

  • the present invention relates to a device for controlling a ladle, which is made of a particular refractory material and which is applied under the casting drawer in order to protect the jet of liquid metal leaving the ladle. pouring, so as to avoid contamination by air.
  • the object of the present invention is to provide a device for controlling such a ladle pouring tube which makes it possible to apply said tube sealingly against the nozzle of the drawer.
  • Another object of the present invention is to provide a device for controlling a ladle, manipulated by an operator who can easily carry out all the necessary movements from a position which keeps him away from dangerous projections. possible.
  • Another object of the present invention is to provide a device for controlling a ladle which adapts to a good number of ladles, equipped either with a rotary drawer or with a linear drawer, in particular the pockets mounted on a lifting turnstile and the pockets mounted on a simple turnstile to ensure continuous casting of the liquid metal.
  • the device for controlling a ladle ladle comprises an arm mounted on a tipping point, which is provided, on the one hand, with a control handle and a counterweight. adjustable and, on the other hand, a stirrup, the end of each branch of which comprises a housing for a pivot secured to a ring for supporting the ladle known in itself.
  • the adjustable counterweight is mounted so as to be able to move along the arm, on one side of the tipping point, by means of an electric or pneumatic drive motor controlled by an operator using mounted switches. , for example, on the handle.
  • the tiltable arm can also rotate around its longitudinal axis. In this way, it is possible to position the pouring ladle tube at the desired inclination to guarantee the desired tightness at the pouring drawer and also to facilitate the positioning of the ladle tube in the distributor.
  • the tiltable arm is mounted on a pivot which is itself secured to a bracket which is again mounted on a pivot. It is easily understood that in this way the arm can perform a series of movements which makes it possible to move it aside or to approach it from a ladle which is either mounted on a lifting turnstile or on a simple turnstile.
  • the tube rests by means of a flange on a ring which is housed by means of two pivots in the branches of a mounted stirrup at the opposite end of said arm.
  • said tube rests on the small ring by means of a movable ring mounted on said ring by means of balls. In this way, the tube can perform a tilting movement and a rotational movement along its own longitudinal axis.
  • the device for controlling a ladle ladle consists of an arm 1 supported, in its middle by a universal toggle 3 allowing rotation along a vertical axis 5, a horizontal axis 7 and following the very axis of said arm, thus allowing the lateral inclination of the ladle located at the end of said arm.
  • the toggle 3 supporting said arm is itself supported by a bracket 9 fixed to the casting floor by means of a pivot 11. A multitude of movements is thus obtained which make it possible to scan a larger area with the ladle.
  • One end of the arm is provided with a counterweight 13 which makes it possible to obtain, in addition to the balance of the tube, a vertical upward force applying the pocket tube on the nozzle of the drawer with sufficient force to ensure the tight fitting between the neck of the tube known per se and the nose of the nozzle of the tundish.
  • the counterweight is made movable along the shaft using a screw driven by a geared motor 15. The use of a counterweight also makes it possible to fill a constant application effect, after adjustment, whatever the height of the pocket in the case where the pocket is placed on a turnstile of the lifting type for example.
  • the counterweight In the absence of electrical or pneumatic energy, the counterweight also makes it possible to maintain an intact force for applying the ladle to the pouring spout, which constitutes essential safety in the presence of liquid steel during casting. .
  • the various combinations of movements described above allow the loading of the ladle on its suspension device, the handle from the floor to the ladle, the XY position of which can be variable, as well as its attitude and altitude.
  • the control device according to the present invention allows the pouring ladle tube to follow the drawer in all its excursions, while keeping the connection and sealing permanent.
  • the various movements of the device according to the present invention are obtained by push buttons 17 and 18 installed on the control handle at the end of the arm.
  • the opposite end of the arm comprises a stirrup 19, each branch of which is provided with a housing 21 for a pivot 23 secured to a ring 25.
  • Said ring 25 supports, by means of balls 27, a movable ring 29 on which is supported by the ladle ladle 31 known per se.
  • the arrangement according to the present invention allows the ladle to remain constantly aligned with the nozzle of the drawer and allows its relative rotation relative to the stirrup during all the movements of the drawer in operation.
  • suspension device according to the present invention lies in the reduction of the friction between the stirrup and the tube, during the operation of the drawer, even in the presence of very high temperatures to which the suspension device described is subjected, while maintaining good operating stability and an acceptable service life.
  • it is advantageously cooled, by natural convection or by a jet of compressed air.
  • the suspension device is protected by a screen 33 which prevents the penetration of projections and droplets of steel, slag or other liquid metal from entering the suspension device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

1. Device for controlling a casting-ladle pipe (31), comprising an arm (1) mounted on a tilting point (3, 7) and equipped, on the one hand, with a control handle and, on the other hand, with a yoke (19), the end of each branch of which has a receptacle (21) for a pivot (23) integral with a supporting collar (29) of the casting-ladle pipe (31) known per se, characterized in that it possesses an adjustable counter-weight (13) on the same side as the control handle.

Description

La présente invention est relative à un dispositif de commande d'un tube de poche de coulée, qui est constitué par un matériau réfractaire particulier et qui est appliqué sous le tiroir de coulée en vue de protéger le jet de métal liquide sortant de la poche de coulée, de manière à éviter la contamination par l'air.The present invention relates to a device for controlling a ladle, which is made of a particular refractory material and which is applied under the casting drawer in order to protect the jet of liquid metal leaving the ladle. pouring, so as to avoid contamination by air.

Les demandes de plus en plus poussées en aciers "spéciaux" et en alliages particuliers ont amené les fabricants de tels aciers "spéciaux" et alliages à améliorer notamment leur technique de coulée. C'est ainsi que l'on a constaté qu'il y a lieu d'éviter au maximum la contamination et l'oxydation du jet de métal liquide par l'air et c'est pourquoi divers constructeurs ont fait appel à des tubes de poche de coulée qui sont appliqués contre la busette du trou de coulée dont la fermeture et l'ouverture sont commandées par un tiroir.The increasing demands for "special" steels and special alloys have led the manufacturers of such "special" steels and alloys to improve their casting technique in particular. This is how it has been found that contamination and oxidation of the jet of liquid metal by air must be avoided as much as possible, and this is why various manufacturers have used ladle which are applied against the nozzle of the tap hole, the closing and opening of which are controlled by a drawer.

Le but de la présente invention vise à fournir un dispositif de commande d'un tel tube de poche de coulée qui permet d'appliquer ledit tube de manière étanche contre la busette du tiroir.The object of the present invention is to provide a device for controlling such a ladle pouring tube which makes it possible to apply said tube sealingly against the nozzle of the drawer.

Un autre but de la présente invention vise à fournir un dispositif de commande d'un tube de poche de coulée manipulé par un opérateur qui peut aisément effectuer tous les mouvements nécessaires à partir d'une position qui le tient à l'écart de projections dangereuses éventuelles.Another object of the present invention is to provide a device for controlling a ladle, manipulated by an operator who can easily carry out all the necessary movements from a position which keeps him away from dangerous projections. possible.

Un autre but de la présente invention vise à fournir un dispositif de commande d'un tube de poche de coulée qui s'adapte à bon nombre de poches de coulées, équipées soit d'un tiroir rotatif, soit d'un tiroir linéaire, notamment les poches montées sur un tourniquet levant et les poches montées sur un tourniquet simple en vue d'assurer une coulée continue du métal liquide.Another object of the present invention is to provide a device for controlling a ladle which adapts to a good number of ladles, equipped either with a rotary drawer or with a linear drawer, in particular the pockets mounted on a lifting turnstile and the pockets mounted on a simple turnstile to ensure continuous casting of the liquid metal.

Selon la présente invention, le dispositif de commande d'un tube de poche de coulée comporte un bras monté sur un point de basculement, qui est muni, d'une part, d'une poignée de commande et d'un contre-poids réglable et, d'autre part, d'un étrier dont l'extrémité de chaque branche comporte un logement pour un pivot solidaire d'un anneau de support du tube de poche de coulée connu en soi.According to the present invention, the device for controlling a ladle ladle comprises an arm mounted on a tipping point, which is provided, on the one hand, with a control handle and a counterweight. adjustable and, on the other hand, a stirrup, the end of each branch of which comprises a housing for a pivot secured to a ring for supporting the ladle known in itself.

Avantageusement, le contre-poids réglable est monté de manière à pouvoir se déplacer le long du bras, d'un côté du point de basculement, moyennant un moteur d'entraînement électrique ou pneumatique commandé par un opérateur à l'aide d'interrupteurs montés, par exemple, sur la poignée.Advantageously, the adjustable counterweight is mounted so as to be able to move along the arm, on one side of the tipping point, by means of an electric or pneumatic drive motor controlled by an operator using mounted switches. , for example, on the handle.

Selon une forme d'exécution préférée, le bras basculable peut également tourner autour de son axe longitudinal. De cette manière, il est possible de positionner le tube de poche de coulée selon l'inclinaison voulue pour garantir l'étanchéité recherchée au tiroir de coulée et également de faciliter la mise en place du tube de poche dans le répartirteur.According to a preferred embodiment, the tiltable arm can also rotate around its longitudinal axis. In this way, it is possible to position the pouring ladle tube at the desired inclination to guarantee the desired tightness at the pouring drawer and also to facilitate the positioning of the ladle tube in the distributor.

Selon une forme d'exécution tout particulièrement préférée, le bras basculable est monté sur un pivot qui est lui-même solidaire d'une potence qui elle est de nouveau montée sur un pivot. On comprend aisément que de cette manière le bras peut effectuer une série de mouvements qui permet de l'écarter ou de l'approcher d'une poche de coulée qui est soit montée sur un tourniquet levant, soit sur un tourniquet simple.According to a particularly preferred embodiment, the tiltable arm is mounted on a pivot which is itself secured to a bracket which is again mounted on a pivot. It is easily understood that in this way the arm can perform a series of movements which makes it possible to move it aside or to approach it from a ladle which is either mounted on a lifting turnstile or on a simple turnstile.

En vue d'assurer une adaptation facile du tube de poche de coulée connu en soi aux tiroirs d'obturation des trous de coulée, le tube repose moyennant un rebord sur un anneau qui est logé moyennant deux pivots dans les branches d'un étrier monté à l'extrémité opposée dudit bras. Avantageusement, ledit tube repose sur le petit anneau par l'intermédiaire d'une bague mobile montée sur ledit anneau moyennant des billes. De cette manière, le tube peut effectuer un mouvement de basculement et un mouvement de rotation selon son propre axe longitudinal.In order to ensure easy adaptation of the ladle known as a ladle to the tapholes, the tube rests by means of a flange on a ring which is housed by means of two pivots in the branches of a mounted stirrup at the opposite end of said arm. Advantageously, said tube rests on the small ring by means of a movable ring mounted on said ring by means of balls. In this way, the tube can perform a tilting movement and a rotational movement along its own longitudinal axis.

D'autres détails apparaîtront plus clairement à la lecture d'un exemple dé crivant une forme d'exécution préférée à l'appui des figures dans lesquelles:

  • - la figure 1 est une vue en perspective du bras de commande, et
  • - la figure 2 est une vue en perspective du mécanisme de suspension du tube de poche de coulée.
Other details will appear more clearly on reading an example describing a preferred embodiment in support of the figures in which:
  • FIG. 1 is a perspective view of the control arm, and
  • - Figure 2 is a perspective view of the suspension mechanism of the ladle.

En référence aux figures, des repères identiques représentent des éléments identiques ou analogues.With reference to the figures, identical references represent identical or analogous elements.

Le dispositif de commande d'un tube de poche de coulée, selon la présente invention, est constitué d'un bras 1 supporté, en son milieu par une genouillère universelle 3 permettant une rotation suivant un axe vertical 5, un axe horizontal 7 et suivant l'axe même dudit bras, permettant ainsi l'inclinaison latérale du tube de poche de coulée située au bout dudit bras. La genouillère 3 supportant ledit bras est elle-même supportée par une potence 9 fixée au plancher de coulée moyennant un pivot 11. On obtient ainsi une multitude de mouvements qui permettent de balayer une zone plus vaste avec le tube de poche de coulée.The device for controlling a ladle ladle, according to the present invention, consists of an arm 1 supported, in its middle by a universal toggle 3 allowing rotation along a vertical axis 5, a horizontal axis 7 and following the very axis of said arm, thus allowing the lateral inclination of the ladle located at the end of said arm. The toggle 3 supporting said arm is itself supported by a bracket 9 fixed to the casting floor by means of a pivot 11. A multitude of movements is thus obtained which make it possible to scan a larger area with the ladle.

Une extrémité du bras est munie d'un contre-poids 13 qui permet d'obtenir, en plus de l'équilibre du tube, un effort vertical vers le haut appliquant le tube de poche sur la busette du tiroir avec un effort suffisant pour assurer l'étanchéité à l'emboîtement entre le col du tube connu en soi et le nez de la busette du tiroir de coulée. Le contre-poids est rendu déplaçable le long de l'arbre à l'aide d'une vis mue par un moto-réducteur 15. L'usage d'un contre-poids permet également de remplir un effet d'application constant, après réglage, quelle que soit la hauteur de la poche dans le cas où la poche est posée sur un tourniquet du type levant par exemple.One end of the arm is provided with a counterweight 13 which makes it possible to obtain, in addition to the balance of the tube, a vertical upward force applying the pocket tube on the nozzle of the drawer with sufficient force to ensure the tight fitting between the neck of the tube known per se and the nose of the nozzle of the tundish. The counterweight is made movable along the shaft using a screw driven by a geared motor 15. The use of a counterweight also makes it possible to fill a constant application effect, after adjustment, whatever the height of the pocket in the case where the pocket is placed on a turnstile of the lifting type for example.

En absence d'énergie électrique ou pneumatique, le contre-poids permet également de conserver une force d'application intacte du tube de poche de coulée sur le tiroir de coulée ce qui constitue une sécurité essentielle en présence d'acier liquide en cours de coulée.In the absence of electrical or pneumatic energy, the counterweight also makes it possible to maintain an intact force for applying the ladle to the pouring spout, which constitutes essential safety in the presence of liquid steel during casting. .

Les diverses combinaisons de mouvements décrites ci-dessus permettent le chargement du tube de poche de coulée sur son dispositif de suspension, de le manutentionner depuis le plancher jusqu'à la poche de coulée dont la position XY peut être variable ainsi que son assiette et son altitude. En outre, lors de l'opération du tiroir de poche, le dispositif de commande selon la présente invention permet au tube de poche de coulée de suivre le tiroir dans toutes ses excursions, tout en gardant permanentes la connexion et l'étanchéité.The various combinations of movements described above allow the loading of the ladle on its suspension device, the handle from the floor to the ladle, the XY position of which can be variable, as well as its attitude and altitude. In addition, during the operation of the pocket drawer, the control device according to the present invention allows the pouring ladle tube to follow the drawer in all its excursions, while keeping the connection and sealing permanent.

Avantageusement les divers mouvements du dispositif selon la présente invention sont obtenus par des boutons poussoirs 17 et 18 installés sur la poignée de commande en bout de bras.Advantageously, the various movements of the device according to the present invention are obtained by push buttons 17 and 18 installed on the control handle at the end of the arm.

L'extrémité opposée du bras comporte un étrier 19 dont chaque branche est munie d'un logement 21 pour un pivot 23 solidaire d'un anneau 25. Ledit anneau 25 supporte, par l'intermédiaire de billes 27, une bague mobile 29 sur laquelle s'appuie le tube de poche de coulée 31 connu en soi.The opposite end of the arm comprises a stirrup 19, each branch of which is provided with a housing 21 for a pivot 23 secured to a ring 25. Said ring 25 supports, by means of balls 27, a movable ring 29 on which is supported by the ladle ladle 31 known per se.

L'agencement selon la présente invention permet au tube de poche de coulée de rester constamment aligné sur la busette du tiroir et permet sa rotation relative par rapport à l'étrier durant tous les déplacements du tiroir en manoeuvre.The arrangement according to the present invention allows the ladle to remain constantly aligned with the nozzle of the drawer and allows its relative rotation relative to the stirrup during all the movements of the drawer in operation.

Un autre avantage du dispositif de suspension selon présente invention réside dans la réduction du frottement entre l'étrier et le tube, lors de l'opération du tiroir, même en présence de températures très élevées auxquelles est soumis le dispositif de suspension décrit et ce, tout en conservant une bonne stabilité de fonctionnement et une durée de vie acceptable. Avantageusement, en vue d'assurer la stabilité dimensionnelle du dispositif de suspension selon l'invention, celui-ci est avantageusement refroidi, par convection naturelle ou par un jet d'air comprimé. Avantageusement, le dispositif de suspension est protégé par un écran 33 qui empêche la pénétration des projections et de gouttelettes d'acier, de scories ou d'un autre métal liquide de pénétrer dan s le dispositif de suspension.Another advantage of the suspension device according to the present invention lies in the reduction of the friction between the stirrup and the tube, during the operation of the drawer, even in the presence of very high temperatures to which the suspension device described is subjected, while maintaining good operating stability and an acceptable service life. Advantageously, in order to ensure the dimensional stability of the suspension device according to the invention, it is advantageously cooled, by natural convection or by a jet of compressed air. Advantageously, the suspension device is protected by a screen 33 which prevents the penetration of projections and droplets of steel, slag or other liquid metal from entering the suspension device.

Il est bien évident que la présente forme d'exécution est donnée à titre d'exemple purement non limitatif et que l'invention n'est pas limitée à cet exemple mais qu'elle s'étend au cadre défini par les revendications.It is obvious that the present form of execution is given by way of purely nonlimiting example and that the invention is not limited to this example but that it extends to the framework defined by the claims.

Claims (7)

1. Dispositif de commande d'un tube de poche de coulée (31), caractérisé en ce qu'il comporte un bras (1) monté sur un point de basculement (2), qui est muni, d'une part, d'une poignée de commande et d'un contre-poids réglable (13) et, d'autre part, d'un étrier (19) dont l'extrémité de chaque branche comporte un logement (21) pour un pivot (23) solidaire d'un anneau de support (29) du tube de poche de coulée (31) connu en soi.1. Control device for a ladle ladle (31), characterized in that it comprises an arm (1) mounted on a tilting point (2), which is provided, on the one hand, with a control handle and an adjustable counterweight (13) and, on the other hand, a stirrup (19) the end of each branch of which comprises a housing (21) for a pivot (23) integral with 'a support ring (29) of the ladle ladle tube (31) known per se. 2. Dispositif selon la revendication 1 caractérisé en ce que le contre-poids (13) réglable est monté de manière à pouvoir se déplacer le long du bras, moyennant un moteur d'entraînement électrique ou pneumatique (15).2. Device according to claim 1 characterized in that the adjustable counterweight (13) is mounted so as to be able to move along the arm, by means of an electric or pneumatic drive motor (15). 3. Dispositif selon la revendication 1 ou 2 caractérisé en ce que le bras basculable (1) est monté de manière à pouvoir tourner autour de son axe sur un pivot (5) solidaire d'une potence (9) qui est elle-même montée sur un pivot (11).3. Device according to claim 1 or 2 characterized in that the tiltable arm (1) is mounted so as to be able to rotate around its axis on a pivot (5) secured to a bracket (9) which is itself mounted on a pivot (11). 4. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que le tube de poche de coulée est monté sur l'anneau de support (25) par l'intermédiaire d'une bague mobile (29) par rapport à l'anneau de support (25).4. Device according to any one of the preceding claims, characterized in that the ladle is mounted on the support ring (25) by means of a movable ring (29) relative to the ring support (25). 5. Dispositif selon la revendication 4 caractérisé en ce que ladite bague mobile (29) repose sur l'anneau de support (25) par l'intermédiaire de billes (27).5. Device according to claim 4 characterized in that said movable ring (29) rests on the support ring (25) by means of balls (27). 6. Dispositif selon l'une quelconque des revendications précédentes caractérisées en ce que le mécanisme de suspension du tube de poche de coulée, comportant l'anneau de support (25) et éventuellement la bague mobile (29) et les billes (27) est protégé par un écran de protection (33).6. Device according to any one of the preceding claims, characterized in that the suspension mechanism of the ladle, comprising the support ring (25) and possibly the movable ring (29) and the balls (27) is protected by a protective screen (33). 7. Dispositif selon l'une quelconque des revendications précédentes caractérisées en ce que le mécanisme de suspension du tube de poche de coulée, comportant l'anneau de support (25) et éventuellement la bague mobile (29) et les billes (27) est refroidi par convection naturelle ou par jet d'air comprimé.7. Device according to any one of the preceding claims, characterized in that the suspension mechanism of the ladle, comprising the support ring (25) and possibly the movable ring (29) and the balls (27) is cooled by natural convection or by compressed air jet.
EP87870073A 1986-06-17 1987-05-21 Installation for controlling an outlet pipe of a pouring ladle Expired - Lifetime EP0250387B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87870073T ATE52434T1 (en) 1986-06-17 1987-05-21 DEVICE FOR CONTROLLING THE OUTLET TUBE OF A LADLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6048231 1986-06-17
BE6/48231A BE904940A (en) 1986-06-17 1986-06-17 Device for application of casting ladle tube - beneath slide valve of casting ladle for protection from air contamination and operator safety

Publications (3)

Publication Number Publication Date
EP0250387A2 true EP0250387A2 (en) 1987-12-23
EP0250387A3 EP0250387A3 (en) 1988-03-23
EP0250387B1 EP0250387B1 (en) 1990-05-09

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EP87870073A Expired - Lifetime EP0250387B1 (en) 1986-06-17 1987-05-21 Installation for controlling an outlet pipe of a pouring ladle

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EP (1) EP0250387B1 (en)
AT (1) ATE52434T1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4316561A (en) * 1980-08-05 1982-02-23 United States Steel Corporation Pour tube latching apparatus
US4381102A (en) * 1979-10-29 1983-04-26 Flo-Con Systems, Inc. Shroud support and method for shroud engagement with teeming valve
GB2160457A (en) * 1984-06-19 1985-12-24 Stopinc Ag Apparatus for exchanging a molten metal pouring tube
DE3426894A1 (en) * 1984-07-20 1986-01-30 Handhabungsgeräte für Stahlwerke GmbH, 6612 Schmelz Handling device for steelworks
JPS61126952A (en) * 1984-11-26 1986-06-14 Kurosaki Refract Co Ltd Automatic handling device of immersion nozzle

Patent Citations (5)

* Cited by examiner, † Cited by third party
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
US4316561A (en) * 1980-08-05 1982-02-23 United States Steel Corporation Pour tube latching apparatus
GB2160457A (en) * 1984-06-19 1985-12-24 Stopinc Ag Apparatus for exchanging a molten metal pouring tube
DE3426894A1 (en) * 1984-07-20 1986-01-30 Handhabungsgeräte für Stahlwerke GmbH, 6612 Schmelz Handling device for steelworks
JPS61126952A (en) * 1984-11-26 1986-06-14 Kurosaki Refract Co Ltd Automatic handling device of immersion nozzle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 320 (M-530)[2376], 30 octobre 1986; & JP - A - 61 126 952 (KUROSAKI REFRACT) 14-06-1986 *

Also Published As

Publication number Publication date
EP0250387A3 (en) 1988-03-23
ATE52434T1 (en) 1990-05-15
EP0250387B1 (en) 1990-05-09

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