EP0723829B1 - Device for inserting a blank plate in a casting tube insertion and replacement device - Google Patents

Device for inserting a blank plate in a casting tube insertion and replacement device Download PDF

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Publication number
EP0723829B1
EP0723829B1 EP95870022A EP95870022A EP0723829B1 EP 0723829 B1 EP0723829 B1 EP 0723829B1 EP 95870022 A EP95870022 A EP 95870022A EP 95870022 A EP95870022 A EP 95870022A EP 0723829 B1 EP0723829 B1 EP 0723829B1
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EP
European Patent Office
Prior art keywords
pouring
trajectory
plate
emergency
mobile 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.)
Expired - Lifetime
Application number
EP95870022A
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German (de)
French (fr)
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EP0723829A1 (en
Inventor
Stanislav Szadkowski
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.)
International Industrial Engineering SA
Original Assignee
Vesuvius Group SA
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Filing date
Publication date
Application filed by Vesuvius Group SA filed Critical Vesuvius Group SA
Publication of EP0723829A1 publication Critical patent/EP0723829A1/en
Application granted granted Critical
Publication of EP0723829B1 publication Critical patent/EP0723829B1/en
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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
    • B22D41/14—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
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S266/00—Metallurgical apparatus
    • Y10S266/01—Repair or restoration of apparatus

Definitions

  • the present invention relates to an emergency shutter of a supply device and pouring tube exchange applied sealingly against the fixed underside of a refractory reference plate housed in the frame of the device fixed to a container of metal pouring from the bottom, under the upward push of guide rails which determine a rectilinear trajectory along which the pouring tubes slide, under the action of a jack, from a loading position to a service in the casting axis and from the service position to a position of release.
  • Removing the blind plate was, however, a relatively straightforward operation. complicated due to the extreme temperatures prevailing near the axis of risk of forgetting to put it back in place or losing it in the mold by a wrong maneuver during preparations for loading the tube replacement.
  • the present invention aims to facilitate the establishment and removal of a plate shutter refractory during and after the pouring tube change operation of a continuous casting installation. To this end, it offers a shutter Emergency of the type described in the preamble to claim 1 attached.
  • This shutter is characterized in that it consists of a plate on which is deposited a blind refractory plate to be moved along a second path which intersects the first aforementioned trajectory, from a positioning position availability outside the second trajectory to an alert position on the right a trajectory overlap zone, adjacent to the service position of a pouring tube in the pouring axis.
  • the aforementioned trajectories are parallel to the fixed underside of the reference plate and included in the same plane horizontal.
  • the movable plate is a rotating plate by means of a rotary arm articulated to a frame of the supply and exchange device pouring tubes, around a vertical axis.
  • the movable tray is a tray-drawer sliding along straight guides fixed to the frame parallel to the plate reference refractory.
  • the movable plate is provided with a handle and / or a drawer or handle more accessible to an operator than the movable tray itself to manually operate it.
  • a supply and exchange device 2 of pouring tubes without however representing the mold in which should have immerse the pouring tube 3 shown in the service position in the casting axis.
  • This tube 3 is attached to a plate 4 applied sealingly against a lower face fixed of a reference refractory plate 5 applied against the frame of the device 2.
  • a upward pushing force is exerted on the plate 4 by guide rails 6 and 7.
  • the fixed guides 19 and 20 determine a first trajectory of the tube replacement and the tube to be replaced.
  • a blind refractory plate 8 which adjoins the tube 3 in the service position in the casting axis.
  • the plate shutter 8 is at work to be instantly moved under the push a retractable arm 9 of a pneumatic cylinder, as described in the patent EP-B-0192019, in the casting axis, to replace the pouring tube that it has itself pushed back by pressing along a common transverse rim.
  • a complete closure device 10 incorporated into the frame of the supply device and exchange of pouring tubes in the immediate vicinity of the guide rails 6, 7 is capable to deposit and remove, at will, the blind refractory plate 8 from a positioning position on availability 14 to an alert position 15 connected to the service position and vice-versa.
  • the shutter 10 consists of a movable plate 11 on which the blind refractory plate 8.
  • the movable plate 11 moves the blind refractory plate 8 along a second trajectory which intersects the above-mentioned first trajectory, from a standby position 14 outside the second trajectory towards a alert position 15 in line with an overlap zone of the two trajectories, adjacent to the service position of a pouring tube in the casting axis.
  • the plate mobile 11 is a tray-drawer sliding along rectilinear guides 12 and 13 fixed to the frame of the device for supplying and exchanging pouring tubes.
  • the movable platform is provided with a handle 17 and a drawbar or handle 18 more accessible to an operator than the movable plate 11 itself for manually actuating it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Chutes (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Continuous Casting (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

An emergency blank shutting off device for conveying and exchanging pouring tubes sliding along guide-rails (6,7) determining a first trajectory is intended to ensure the immediate and tight stop of a casting operation in case of emergency. It comprises a carrier on which an emergency blank re-fractory plate (8) is set and actuated along a second trajectory which crosses over the first trajectory, from a readiness position (14), off the second trajectory to an alert position (15) on a zone overlapping the two trajectories adjacent to the operating position of a pouring tube (3) in the pouring axis.

Description

La présente invention est relative à un obturateur d'urgence d'un dispositif d'amenée et d'échange de tubes de coulée appliqué étanchement contre la face inférieure fixe d'une plaque réfractaire de référence logée dans le bâti du dispositif fixé à un récipient de coulée de métal par le fond, sous la poussée vers le haut de rails-guides qui déterminent une trajectoire rectiligne le long de laquelle coulisse les tubes de coulée, sous l'action d'un vérin, depuis une position de chargement vers une position de service dans l'axe de coulée et de la position de service vers une position de dégagement.The present invention relates to an emergency shutter of a supply device and pouring tube exchange applied sealingly against the fixed underside of a refractory reference plate housed in the frame of the device fixed to a container of metal pouring from the bottom, under the upward push of guide rails which determine a rectilinear trajectory along which the pouring tubes slide, under the action of a jack, from a loading position to a service in the casting axis and from the service position to a position of release.

Elle trouve sa principale application en sidérurgie dans les installations de coulée continue, pour assurer en cas d'urgence, l'arrêt immédiat et étanche d'une opération de coulée ou en fin de coulée.Its main application in the steel industry is in casting installations continuous, to ensure immediate and watertight shutdown of an operation in an emergency pouring or at the end of casting.

Par le document W092/00822, on connait déjà un dispositif d'amenée et d'échange de tubes de coulée interchangeables pour récipient de coulée de métal par le fond dans lequel une plaque d'obturation, ou une plaque accolée d'un tube de remplacement et celle d'un tube à remplacer sont montées coulissantes sur des rails-guides aptes à transmettre un effort de poussée vers le haut et à guider le déplacement en translation des plaques et des tubes de coulée parallèlement à eux-mêmes sous l'action d'un vérin, depuis une position de chargement vers une position de service dans l'axe de coulée et de la position de service vers une position de dégagement. Le tube de coulée de remplacement accolé à une plaque s'appuie par un rebord transversal commun contre la plaque portant un tube de coulée à remplacer ou contre une plaque d'obturation.By document W092 / 00822, there is already known a device for supplying and exchanging interchangeable pouring tubes for metal bottom pouring container in which a blanking plate, or a plate attached to a replacement tube and that of a tube to be replaced are slidably mounted on guide rails suitable for transmit an upward pushing force and guide the translational movement plates and pouring tubes parallel to themselves under the action of a jack, from a loading position to a service position in the casting axis and from the service position to a release position. The pouring tube of replacement attached to a plate is supported by a common transverse edge against the plate carrying a pouring tube to be replaced or against a blanking plate.

En cas d'incident technique ou technologique, il est impérieux de disposer d'emblée de moyens pour arrêter d'urgence l'opération de coulée. A cet effet, on prévoyait dans les dispositifs d'amenée et d'échange connus, pendant l'opération de coulée, une plaque réfractaire borgne, juxtaposée en position d'attente, par un rebord transversal commun contre une plaque portant le tube de coulée en position de service dans l'axe de coulée. Quelques instants avant de remplacer le tube usé par un tube de remplacement, on ôtait la plaque borgne et on mettait en place, en position d'attente, ledit tube de remplacement.In the event of a technical or technological incident, it is imperative to immediately have means for urgently stopping the casting operation. To this end, provision was made in the known supply and exchange devices, during the casting operation, a plate blind refractory, juxtaposed in the waiting position, by a common transverse rim against a plate carrying the pouring tube in the service position in the casting axis. A few moments before replacing the worn tube with a replacement tube, we removed the blind plate and the said tube was placed in the standby position replacement.

Le retrait de la plaque borgne constituait cependant une opération relativement compliquée en raison des températures extrêmes qui règnent au voisinage de l'axe de coulée et du risque d'oublier de la remettre en place ou la perdre dans la lingotière par une fausse manoeuvre lors des préparatifs en vue du chargement du tube de remplacement. Removing the blind plate was, however, a relatively straightforward operation. complicated due to the extreme temperatures prevailing near the axis of risk of forgetting to put it back in place or losing it in the mold by a wrong maneuver during preparations for loading the tube replacement.

La présente invention vise à faciliter la mise en place et le retrait d'une plaque réfractaire d'obturation pendant et après l'opération de changement de tube de coulée d'une installation de coulée continue. Elle propose dans ce but, un obturateur d'urgence du type décrit dans le préambule de la revendication 1 ci-jointe. Cet obturateur est caractérisé en ce qu'il est constitué d'un plateau sur lequel est déposée une plaque réfractaire borgne en vue d'être déplacée le long d'une seconde trajectoire qui recoupe la première trajectoire susdite, depuis une position de mise en disponibilité en dehors de la seconde trajectoire vers une position d'alerte au droit d'une zone de recouvrement des des trajectoires, contiguë à la position de service d'un tube de coulée dans l'axe de coulée.The present invention aims to facilitate the establishment and removal of a plate shutter refractory during and after the pouring tube change operation of a continuous casting installation. To this end, it offers a shutter Emergency of the type described in the preamble to claim 1 attached. This shutter is characterized in that it consists of a plate on which is deposited a blind refractory plate to be moved along a second path which intersects the first aforementioned trajectory, from a positioning position availability outside the second trajectory to an alert position on the right a trajectory overlap zone, adjacent to the service position of a pouring tube in the pouring axis.

Suivant une particularité de l'invention, les trajectoires susdites sont parallèles à la face inférieure fixe de la plaque de référence et comprises dans un même plan horizontal.According to a feature of the invention, the aforementioned trajectories are parallel to the fixed underside of the reference plate and included in the same plane horizontal.

Ce résultat technique s'obtient lorsque le plateau mobile et les rails-guides présentent des surfaces portantes comprises dans un même plan horizontal.This technical result is obtained when the movable plate and the guide rails have bearing surfaces included in the same horizontal plane.

Dans une forme de réalisation particulière, le plateau mobile est un plateau tournant au moyen d'un bras rotatif articulé à un bâti du dispositif d'amenée et d'échange de tubes de coulée, autour d'un axe vertical.In a particular embodiment, the movable plate is a rotating plate by means of a rotary arm articulated to a frame of the supply and exchange device pouring tubes, around a vertical axis.

Dans une seconde forme de réalisation particulière, le plateau mobile est un plateau-tiroir coulissant le long de guides rectilignes fixés au bâti parallèlement à la plaque réfractaire de référence.In a second particular embodiment, the movable tray is a tray-drawer sliding along straight guides fixed to the frame parallel to the plate reference refractory.

Suivant un développement de l'invention, le plateau mobile est muni d'une poignée et/ou d'un tiroir ou manche plus accessible à un opérateur que le plateau mobile lui-même pour actionner manuellement celui-ci.According to a development of the invention, the movable plate is provided with a handle and / or a drawer or handle more accessible to an operator than the movable tray itself to manually operate it.

Ces particularités et détails de l'invention ainsi que d'autres apparaítront au cours de la description détaillée d'une forme de réalisation préférée de l'invention illustrée par les dessins ci-joints.These features and details of the invention as well as others will become apparent during the detailed description of a preferred embodiment of the invention illustrated by the attached drawings.

Dans ces dessins:

  • la figure 1 est une vue en perspective d'un dispositif d'amenée et d'échange de tubes de coulée pourvu d'un obturateur d'urgence coulissant en position de dégagement;
  • la figure 2 est une vue semblable à celle de la figure 1, de l'obturateur d'urgence en position d'alerte;
  • la figure 3 est une vue en perspective d'un plateau rotatif prêt à recevoir une plaque réfractaire d'obturation en position de dégagement;
  • la figure 4 est une vue semblable à celle de la figure 3, du plateau rotatif en position de dégagement sur lequel est posée une plaque réfractaire d'obturation en position de dégagement;
  • la figure 5 est une vue semblable aux figures 3 et 4, du plateau rotatif en position d'alerte.
In these drawings:
  • Figure 1 is a perspective view of a device for supplying and exchanging pouring tubes provided with an emergency shutter sliding in the release position;
  • Figure 2 is a view similar to that of Figure 1, of the emergency shutter in the alert position;
  • Figure 3 is a perspective view of a turntable ready to receive a refractory shutter plate in the release position;
  • Figure 4 is a view similar to that of Figure 3, the rotary plate in the release position on which is placed a refractory shutter plate in the release position;
  • Figure 5 is a view similar to Figures 3 and 4, of the turntable in the alert position.

On a représenté sous un récipient de coulée 1, un dispositif d'amenée et d'échange 2 de tubes de coulée, sans toutefois représenter la lingotière dans laquelle aurait dû immerger le tube de coulée 3 représenté en position de service dans l'axe de coulée. Ce tube 3 est rapporté à une plaque 4 appliquée étanchement contre une face inférieure fixe d'une plaque réfractaire de référence 5 appliquée contre le bâti du dispositif 2. Un effort de poussée vers le haut est exercé sur la plaque 4 par des rails-guides 6 et 7. Les guides fixes 19 et 20 déterminent une première trajectoire du tube de remplacement et du tube à remplacer.There is shown under a pouring container 1, a supply and exchange device 2 of pouring tubes, without however representing the mold in which should have immerse the pouring tube 3 shown in the service position in the casting axis. This tube 3 is attached to a plate 4 applied sealingly against a lower face fixed of a reference refractory plate 5 applied against the frame of the device 2. A upward pushing force is exerted on the plate 4 by guide rails 6 and 7. The fixed guides 19 and 20 determine a first trajectory of the tube replacement and the tube to be replaced.

Dès qu'un tube usé a été remplacé par un tube de remplacement, il est impérieux de mettre en place, en position d'alerte une plaque réfractaire borgne 8 qui jouxte le tube de coulée 3 en position de service dans l'axe de coulée. En cas d'urgence, la plaque d'obturation 8 est à pied d'oeuvre pour être instantanément déplacée sous la poussée d'un bras rétractable 9 d'un vérin pneumatique, comme décrit dans le brevet EP-B-0192019, dans l'axe de coulée, pour remplacer le tube de coulée qu'elle a elle-même repoussé en s'appuyant le long d'un rebord transversal commun.As soon as a worn tube has been replaced by a replacement tube, it is imperative to set up, in the alert position, a blind refractory plate 8 which adjoins the tube 3 in the service position in the casting axis. In an emergency, the plate shutter 8 is at work to be instantly moved under the push a retractable arm 9 of a pneumatic cylinder, as described in the patent EP-B-0192019, in the casting axis, to replace the pouring tube that it has itself pushed back by pressing along a common transverse rim.

Un dispositif complet d'obturation 10 incorporé au bâti du dispositif d'amenée et d'échange de tubes de coulée au voisinage immédiat des rails-guides 6, 7 est capable de déposer et de retirer, à volonté, la plaque réfractaire borgne 8 d'une position de mise en disponibilité 14 vers une position d'alerte 15 connexe à la position de service et vice-versa. L'obturateur 10 est constitué d'un plateau mobile 11 sur lequel est déposée la plaque réfractaire borgne 8. Le plateau mobile 11 déplace la plaque réfractaire borgne 8 le long d'une seconde trajectoire qui recoupe la première trajectoire susdite, depuis une position de mise en disponibilité 14 en dehors de la seconde trajectoire vers une position d'alerte 15 au droit d'une zone de recouvrement des deux trajectoires, contiguë à la position de service d'un tube de coulée dans l'axe de coulée.A complete closure device 10 incorporated into the frame of the supply device and exchange of pouring tubes in the immediate vicinity of the guide rails 6, 7 is capable to deposit and remove, at will, the blind refractory plate 8 from a positioning position on availability 14 to an alert position 15 connected to the service position and vice-versa. The shutter 10 consists of a movable plate 11 on which the blind refractory plate 8. The movable plate 11 moves the blind refractory plate 8 along a second trajectory which intersects the above-mentioned first trajectory, from a standby position 14 outside the second trajectory towards a alert position 15 in line with an overlap zone of the two trajectories, adjacent to the service position of a pouring tube in the casting axis.

Dans une première forme de réalisation illustrée dans les figures 1 et 2, le plateau mobile 11 est un plateau-tiroir coulissant le long de guides rectilignes 12 et 13 fixés au bâti du dispositif d'amenée et d'échange de tubes de coulée. Le plateau mobile est muni d'une poignée 17 et d'un timon ou manche 18 plus accessible à un opérateur que le plateau mobile 11 lui-même pour actionner manuellement celui-ci.In a first embodiment illustrated in Figures 1 and 2, the plate mobile 11 is a tray-drawer sliding along rectilinear guides 12 and 13 fixed to the frame of the device for supplying and exchanging pouring tubes. The movable platform is provided with a handle 17 and a drawbar or handle 18 more accessible to an operator than the movable plate 11 itself for manually actuating it.

Dans une seconde forme de réalisation (voir figures 3 à 5), le plateau mobile 11 est un plateau tournant au moyen d'un bras rotatif 16 articulé autour d'un axe vertical à un bâti du dispositif d'amenée et d'échange de tubes de coulée.

  • Les avantages obtenus par l'obturateur décrit ci-dessus sont les suivants: la mise en place et le retrait de la plaque réfractaire d'obturation est fiable, commode et simple;
  • Les opérations sont faites à distance;
  • La position dégagée de disponibilité de la plaque d'obturation permet de ne pas gêner l'opérateur qui effectue le changement d'un tube de remplacement préalablement préchauffé au rouge, et
  • La plaque réfractaire d'obturation ne risque pas d'être perdue, car elle reste complètement attachée au dispositif d'amenée et d'échange du tube de coulée.
In a second embodiment (see FIGS. 3 to 5), the movable plate 11 is a rotating plate by means of a rotary arm 16 articulated around a vertical axis to a frame of the supply and exchange device for pouring tubes.
  • The advantages obtained by the obturator described above are the following: the installation and removal of the refractory obturating plate is reliable, convenient and simple;
  • Operations are done remotely;
  • The clear position of availability of the cover plate does not interfere with the operator who performs the change of a replacement tube preheated to red, and
  • The refractory blanking plate is not likely to be lost, because it remains completely attached to the supply and exchange device of the pouring tube.

Claims (7)

  1. Emergency shutting off device (10) for a conveyance and exchange device (2) of pouring tubes (3) tightly urged against the lower face of a fixed reference refractory plate (5) located in the frame of the device fixed to the a vessel (1) pouring metal from its bottom end, under the upward pressure by guide-rails (6,7) which determine a first rectilinear trajectory along which slides each of the plates (4) of said pouring tubes, actuated by a jack, from a loading position to an operating position in the axis of pouring, and from the operating position to a retracting position, characterized in that it is comprised of a mobile frame (11) whereon is set a blank refractory plate (8) to be moved along a second trajectory, which crosses over said first trajectory, from a readiness position (14), off the second trajectory to an alert position (15) on a zone overlapping the two trajectories adjacent to the operating position of a pouring tube (3) in the pouring axis.
  2. Emergency shutting off device according to claim 1, characterized in that the said trajectories are parallel to the fixed lower face of the reference plate (5) and set in the same horizontal plane.
  3. Emergency shutting off device according to claim 1 or 2, characterized in that the mobile frame (11) and the guide rails (6, 7) have bearing surfaces comprised in the same horizontal plane.
  4. Emergency shutting off device according to any one of the preceding claims, characterized in that the mobile frame (11) is a plate which rotates by means of a rotating arm (16) hinge-jointed around a vertical axis to the structure of a device for the conveyance and exchange of pouring tubes.
  5. Emergency shutting off device according to any one of claims 1 to 4, characterized in that the mobile frame (11) is a frame sliding on rectilinear guide-rails (12,13) fixed to the structure.
  6. Emergency shutting off device according to any one of the preceding claims, characterized in that the mobile frame is provided with a handle (17) and a pusher or haft (18) of easier access to an operator than the mobile frame (11) as such for its manual operation.
  7. Emergency shutting off device according to any one of the preceding claims, characterized in that the mobile frame (11) is driven by a remote controlled jack.
EP95870022A 1995-01-24 1995-03-16 Device for inserting a blank plate in a casting tube insertion and replacement device Expired - Lifetime EP0723829B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US377206 1995-01-24
US08/377,206 US5494201A (en) 1995-01-24 1995-01-24 Device for inserting a retractable blank shutting off plate in a device for the conveyance and exchange of a pouring tube

Publications (2)

Publication Number Publication Date
EP0723829A1 EP0723829A1 (en) 1996-07-31
EP0723829B1 true EP0723829B1 (en) 1999-12-01

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EP95870022A Expired - Lifetime EP0723829B1 (en) 1995-01-24 1995-03-16 Device for inserting a blank plate in a casting tube insertion and replacement device

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US (1) US5494201A (en)
EP (1) EP0723829B1 (en)
AT (1) ATE187110T1 (en)
DE (1) DE69513627T2 (en)
DK (1) DK0723829T3 (en)
ES (1) ES2141912T3 (en)

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CN103862009B (en) * 2014-02-28 2016-05-18 北京首钢股份有限公司 The apparatus and method of the automatic dowel plate of grade transition
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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DK0723829T3 (en) 2000-05-29
DE69513627T2 (en) 2000-05-04
DE69513627D1 (en) 2000-01-05
EP0723829A1 (en) 1996-07-31
ES2141912T3 (en) 2000-04-01
ATE187110T1 (en) 1999-12-15
US5494201A (en) 1996-02-27

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