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EP0621098A1 - Method and apparatus for casting with a cement-free joint of a metallurgical vessel and a casting gate - Google Patents

Method and apparatus for casting with a cement-free joint of a metallurgical vessel and a casting gate Download PDF

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Publication number
EP0621098A1
EP0621098A1 EP93401008A EP93401008A EP0621098A1 EP 0621098 A1 EP0621098 A1 EP 0621098A1 EP 93401008 A EP93401008 A EP 93401008A EP 93401008 A EP93401008 A EP 93401008A EP 0621098 A1 EP0621098 A1 EP 0621098A1
Authority
EP
European Patent Office
Prior art keywords
fixed plate
plate
pouring orifice
junction surface
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.)
Granted
Application number
EP93401008A
Other languages
German (de)
French (fr)
Other versions
EP0621098B2 (en
EP0621098B1 (en
Inventor
François Noel Richard
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.)
Vesuvius France SA
Original Assignee
Vesuvius France 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8214700&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0621098(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Vesuvius France SA filed Critical Vesuvius France SA
Priority to AT93401008T priority Critical patent/ATE220588T1/en
Priority to DE69332116T priority patent/DE69332116T3/en
Priority to ES93401008T priority patent/ES2176196T5/en
Priority to EP93401008A priority patent/EP0621098B2/en
Priority to US08/214,286 priority patent/US5400930A/en
Priority to BR9404968A priority patent/BR9404968A/en
Priority to CN94190210A priority patent/CN1057718C/en
Priority to RU94046258A priority patent/RU2145534C1/en
Priority to PCT/EP1994/001211 priority patent/WO1994023867A1/en
Priority to CA002137372A priority patent/CA2137372C/en
Priority to JP52277194A priority patent/JP3259962B2/en
Priority to MXPA94002807A priority patent/MXPA94002807A/en
Priority to AU65693/94A priority patent/AU666624B2/en
Publication of EP0621098A1 publication Critical patent/EP0621098A1/en
Priority to US08/939,332 priority patent/USRE36364E/en
Publication of EP0621098B1 publication Critical patent/EP0621098B1/en
Application granted granted Critical
Publication of EP0621098B2 publication Critical patent/EP0621098B2/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
    • B22D41/14—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
    • B22D41/28—Plates therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/30—Manufacturing or repairing thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B22D41/34—Supporting, fixing or centering means therefor
    • 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
    • B22D41/40—Means for pressing the plates together

Definitions

  • the invention relates to a casting device comprising a metallurgical container provided with a pouring orifice, in particular a converter for the production of steel; a slide shutter for said pouring orifice, this shutter comprising: at least one fixed refractory plate having an orifice placed opposite the pouring orifice; at least one movable refractory plate comprising at least one orifice; displacement means for moving the movable plate relative to the fixed plate so as to control the covering of the orifices of the fixed plate and of the movable plate; pressure means which allow the movable plate to be clamped against the fixed plate.
  • Casting devices of this type are already known.
  • the fixed plate of the slide valve is cemented at the end of the pouring orifice outside the container.
  • the end of the pouring orifice is coated with cement, and the fixed plate is pressed against this end.
  • FR-A-2 436 923 a drawer shutter provided with a full shutter plate or having a through hole for the metal.
  • This closure plate is disposed between two plates, respectively an upper plate and a lower support plate on which is fixed a pouring tube.
  • the top plate is a work plate.
  • the closure plate rubs against its underside with each movement of the drawer. This face therefore erodes relatively quickly which forces the upper plate to be changed each time the plate is changed. shutter.
  • the present invention relates to a casting device and a method of implementing this device which solve these problems.
  • junction surface of the pouring orifice and the junction surface of the fixed plate are planar.
  • this characteristic is not essential, the flatness of these two surfaces facilitates the positioning and / or removal of the fixed plate by sliding on the junction surface of the pouring orifice.
  • the junction surface of the pouring orifice consists of a refractory plate. This plate is changed between two castings while the container is empty and the steel does not flow. It is therefore impossible for steel to get between this junction plate and the fixed plate.
  • Preferably means are provided to facilitate the positioning and / or removal of at least the fixed plate by sliding on said planar junction surface.
  • These means to facilitate the introduction and / or removal of at least the fixed plate can be constituted by at least one guide surface on the side of the introduction of the fixed plate, a surface which substantially extends the junction surface of the pouring orifice so as to ensure a pre-guiding of the fixed plate with respect to the junction surface of the pouring orifice.
  • the guide surface should be exactly at the same level as the junction surface. However, this cannot be done mechanically because of the machining tolerances.
  • the level of the guide surface is therefore equal by default (that is to say, to the machining tolerances) at the level of the junction surface of the pouring orifice, a chamfer being provided to facilitate positioning. place the fixed plate on the junction surface of the pouring orifice.
  • the pressure means for clamping the junction surface of the fixed plate against the junction surface of the pouring orifice are arranged so as to act during the positioning and / or the sliding removal of at least the fixed plate in order to eliminate the waste possibly remaining on this surface.
  • the displacement means for positioning and / or removing the fixed plate by sliding on the junction surface of the pouring orifice are preferably the same as the means for moving the movable plate relative to the fixed plate.
  • the device preferably comprises: a frame; a fixed plate drive frame; a movable plate drive frame; means for moving the driving frame of the movable plate, these means constituting the means for moving the movable plate mentioned above; means for securing the drive frame of the fixed plate either with the frame, or with the drive frame of the movable plate.
  • the means for securing the drive frame of the fixed plate either with the frame or with the drive frame of the movable plate are, in a preferred mode, constituted by a two-position lock mounted on the drive frame of the fixed plate, this lock immobilizing the drive frame of the fixed plate relative to the frame in a first position and relative to the drive frame of the movable plate in the second position, the means for moving the frame drive of the movable plate having a sufficient stroke to move the assembly of the two frames until releasing the fixed plate from the grip of the pressure means of the fixed plate against the junction surface of the pouring orifice.
  • the device comprises a fixed stop relative to the frame against which the fixed plate abuts at the end of introduction, the lock comprising clearance recovery means for blocking said fixed plate against the stop via the drive frame of the fixed plate so that the fixed plate and the drive frame of the fixed plate are immobilized together with respect to the frame .
  • the means for clamping the fixed plate against the junction surface of the pouring orifice are preferably the same as the pressure means for pressing the movable plate against the fixed plate.
  • the junction surface of the pouring orifice can consist of a refractory plate surrounding the pouring orifice mounted on a metal support making it possible to rigidly fix said refractory plate to the metallurgical container.
  • the metal support may have at least a portion of surface co-planar with the refractory plate so as to enlarge the bearing surface of the fixed plate on the junction surface of the pouring orifice.
  • Studs made of a material compatible with that of the refractory plate from the point of view of machining by means of the same tool can be rigidly fixed on the metal support and machined co-planar with the refractory plate so as to enlarge the surface of the fixed plate against the junction surface.
  • the invention also relates to a method of implementing the device.
  • This method of replacing at least the fixed plate of said drawer obturator is characterized in that a cementless joint is produced between the pouring orifice of the metallurgical container and the fixed plate of the obturator by tightening a junction surface of the fixed plate against a junction surface of the pouring orifice.
  • At least the fixed plate is brought and / or removed laterally relative to the pouring orifice and slid under pressure means before the fixed plate begins to cover and / or uncover the casting member of the container.
  • FIG. 1 An overview of the casting device.
  • the metallurgical container designated by the general reference 1.
  • This container can be a distributor, or a pocket, or even, as in the example illustrated, a converter for the production of steel.
  • a drawer shutter designated by the general reference 10, is fixed under the container. The steel contained in the converter is poured into a pocket 3.
  • FIG. 2 a schematic sectional view of the device.
  • the steel wall 2 of the container is covered by a protective layer 4 of refractory material, for example bricks.
  • a tap hole 6 allows the metal to exit the converter.
  • the orifice of this hole is delimited by an outer surface 8, flat in the example shown. This surface 8 constitutes a junction surface.
  • the drawer shutter 10 fixed under the container consists of a frame 12 fixed on the outer wall 2 of the metallurgical container.
  • a frame 12 fixed on the outer wall 2 of the metallurgical container.
  • Each of the plates has one or more orifices for the passage of the metal and is surrounded by a frame, respectively 20 and 22. These two plates are enclosed in a box 24.
  • Pressure means represented schematically by the springs 26, make it possible to press the fixed plate 14 against the movable plate 16.
  • An actuating means, such as a hydraulic cylinder 28, the rod of which is connected to the frame 22 of the movable plate makes it possible to move the movable plate relative to the fixed plate. This movement makes it possible, in known manner, to vary the overlap of the orifices of the two plates so as to completely control or stop the passage of the metal.
  • the drawer has only two plates, it could have more, for example three or more.
  • the housing 24 is in turn pressed by pressure means 30 against the surface 8, which terminates the pouring orifice so that the back of the fixed plate, which has a junction surface 32 adapted to the surface 8 is applied strong enough to create a metal seal.
  • the qualities of surfaces present are of course of sufficient quality to ensure this seal.
  • the junction surface must be large enough so that the pressure means do not exert a cantilever force. Since the pressure means for clamping the fixed plate and the movable plate against each other are different from the pressure means for pressing the junction surface of the fixed plate against the junction surface of the pouring orifice , it is possible to vary the pressures per unit area independently of each other.
  • junction surface 8 is smaller than the fixed plate. This is why it is advantageous to provide means to facilitate the positioning and / or removal of at least the fixed plate by sliding on said planar junction surface.
  • These means consist of a guide surface 34. This surface is located on the side of the pouring orifice 6 through which the fixed plate must be introduced. It is located substantially in the plane of the junction surface.
  • the guide surface 34 may be slightly set back from this plane, as shown in FIG. chamfer will then be provided on the fixed plate or on the junction surface to facilitate the positioning of the fixed plate by absorbing the difference in level.
  • the housing 24 containing the used fixed and mobile plates is first removed by sliding them on the junction surface 8 and then on the guide surface 34 using the jack 28 until 'They are no longer subjected to the action of the pressure means 30. This has the effect of shearing the waste which is on the junction surface. In particular, if a steel ring has formed at the junction between the junction surface of the pouring orifice and the fixed plate, this ring will be sheared and the waste evacuated through the taphole 6. The housing is then disconnected from the cylinder rod 28 and removed.
  • FIGS. 3 and 4 show another embodiment of a casting device according to the invention.
  • This device comprises a solid frame 12 fixed on an outer wall 2 of the metallurgical container.
  • a connecting plate 36 attached and cemented on the end of the tap hole.
  • the outer surface of this plate 36 constitutes the junction surface 8.
  • the fixed plate here consists of the refractory plate itself and an envelope 38.
  • the movable plate consists of the refractory plate itself, a support 40 and a collecting nozzle 42, separate or produced in one piece with the refractory plate .
  • the pressure means 26 will be described in more detail with reference to FIG. 4. It will however be noted that in this embodiment the means for clamping the fixed plate against the junction surface of the pouring orifice are the same as the pressure means for pressing the fixed plate 14 against the movable plate 16. The same means therefore fulfill two distinct functions.
  • the fixed plate is placed in the drive frame of the fixed plate 20 and the movable plate in the drive frame of the movable plate 22.
  • the rod 44 of the jack 28 is retained in a housing of the drive frame of the movable plate 22.
  • the jack 28 makes it possible to move the movable plate on the fixed plate so as to control, in known manner, the flow of the metal out of the metallurgical container.
  • Fig 4 a sectional view of the embodiment shown in Fig 3, along a perpendicular section plane.
  • This figure shows in particular the detail of the pressure means designated as a whole by the general reference 26. They comprise a helical spring 46, one end of which is supported on the frame 12 and the other on a rocker arm 48. The rocker arm transmits the action of the spring, in opposite direction, on the movable plate. The action exerted on the movable plate is retransmitted to the fixed plate, then to the junction plate 36.
  • a lock 50 with two positions.
  • This lock is rotatably mounted on the drive frame 20 of the fixed plate. In a first position, shown in fig 3, it enters a housing 51 of the frame 12. In its other position it enters a housing 53 provided in the drive frame of the movable plate 22. In the first position it immobilizes the drive frame of the plate fixed relative to the frame and, in its second position, relative to the drive frame of the movable plate.
  • the jack 28 has a sufficient stroke to move the assembly of the two frames sufficiently to release the fixed plate from the grip of the pressure means of the fixed plate against the junction surface of the pouring orifice.
  • the two-position lock 50 the same means, namely the jack 28, successively performs two distinct functions.
  • the movable plate first position of the latch 50.
  • the lock is placed in its second position. The action of the jack then makes it possible to move the fixed plate and the movable plate in one piece, joined together by the latch 50.
  • a fixed stop 52 is provided on the frame 12.
  • the fixed plate 14 comes to bear against this stop 52 at the end of its introduction.
  • the latch 50 has a surface 54 constituting means for taking up play to block the fixed plate against the stop 52 through the drive frame of the fixed plate.
  • This surface 54 is for example a surface constituting a helical cam.
  • FIG 5 an alternative embodiment of the drawer of Fig 3 in the open position. Parts of the same type are designated by identical reference numbers.
  • the latch 50 is placed in said second position in which it secures the drive frame 20 of the fixed plate 14 with the drive frame 22 of the movable plate 16.
  • the installation of new plates is carried out in the same way.
  • the fixed plate 14 is first placed inside the opening of the drive frame 20 of the fixed plate on a support surface of the frame 12 located (except for machining tolerances), in the extension of the junction surface.
  • the movable plate is then placed on the fixed plate, inside the opening of the drive frame 22 of the movable plate. It is not necessary to make any connection or disconnection because the cylinder rod remains fixed, during these operations, on the drive frame of the movable plate.
  • the cylinder is then actuated to pull the assembly which penetrates laterally with respect to the pouring orifice under the locking means 26, which immobilizes the two plates without any other additional operation.
  • the fixed plate 14 is brought in and / or withdrawn and slid under pressure means 30 before the fixed plate 14) begins to cover the pouring orifice of the container.
  • the junction plate of the pouring orifice consists of a refractory plate 56 surrounding the pouring orifice.
  • the plate 56 is integral with a metal support 58 making it possible to ensure a rigid attachment to the metallurgical container, for example by means of screws, bolts, studs or the like placed in the holes 60.
  • the surface of the metal support 58 is co-planar, at least in part, with the junction surface 8. This can be obtained by rectifying these two surfaces after assembly of the refractory plate on the metal support.
  • the surface of the metal support 58 makes it possible to enlarge the bearing surface of the fixed plate on the junction surface and to avoid an overhang of the fixed plate.
  • Pads 62 are rigidly fixed on the metal support 58 and machined co-planar with the refractory plate 56 so as to enlarge the bearing surface of the fixed plate 14 against the junction surface 8.
  • the pads 62 are made of a material compatible with that of the refractory plate 56 from the machining point of view.
  • the pads 62 are made of the same refractory material as that of the plate 56. Thus it is possible to machine them simultaneously without difficulty.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Sliding Valves (AREA)
  • Lift Valve (AREA)

Abstract

The casting apparatus comprises a metallurgical vessel equipped with a casting port (6), a casting gate comprising: at least one stationary refractory plate (14) including a port placed opposite the casting port; at least one movable refractory plate (16) including at least one port; displacement means (28) for displacing the movable plate (16) with respect to the stationary plate (14) so as to control the covering-over of the port of the stationary plate (14) and of the movable plate (16); means (26) for pressing the movable plate (16) against the stationary plate (14). The casting port (6) of the metallurgical vessel includes a surface (8) of joining to the stationary plate (14) of the casting gate. The stationary plate (14) includes a joining surface (32) adapted to the surface (8). Pressure means (30) make it possible to press the joining surface (32) of the stationary plate (14) against the joining surface (8) of the casting port so that a leaktight seal is guaranteed between these two surfaces in the absence of mortar, a cemented join or fibres, adhesive or any other means added to guarantee the leaktight seal. <IMAGE>

Description

L'invention concerne un dispositif de coulée comprenant un conteneur métallurgique muni d'un orifice de coulée, notamment un convertisseur pour l'élaboration de l'acier; un obturateur à tiroir pour ledit orifice de coulée, cet obturateur comprenant: au moins une plaque réfractaire fixe comportant un orifice placé en regard de l'orifice de coulée; au moins une plaque réfractaire mobile comportant au moins un orifice; des moyens de déplacement pour déplacer la plaque mobile par rapport à la plaque fixe de manière à commander le recouvrement des orifices de la plaque fixe et de la plaque mobile; des moyens de pression qui permettent de serrer la plaque mobile contre la plaque fixe.The invention relates to a casting device comprising a metallurgical container provided with a pouring orifice, in particular a converter for the production of steel; a slide shutter for said pouring orifice, this shutter comprising: at least one fixed refractory plate having an orifice placed opposite the pouring orifice; at least one movable refractory plate comprising at least one orifice; displacement means for moving the movable plate relative to the fixed plate so as to control the covering of the orifices of the fixed plate and of the movable plate; pressure means which allow the movable plate to be clamped against the fixed plate.

On connaît déjà des dispositifs de coulée de ce type. Dans la plupart d'entre eux, la plaque fixe de l'obturateur à tiroir est cimentée à l'extrémité de l'orifice de coulée extérieure au conteneur. Pour cela l'extrémité de l'orifice de coulée est enduite de ciment, et la plaque fixe est pressée contre cet extrémité.Casting devices of this type are already known. In most of them, the fixed plate of the slide valve is cemented at the end of the pouring orifice outside the container. For this, the end of the pouring orifice is coated with cement, and the fixed plate is pressed against this end.

Cependant il est nécessaire de changer périodiquement les plaques réfractaires par suite de leur érosion, principalement à cause des mouvements du tiroir. Un tel changement nécessite d'abord de défaire le joint de ciment, puis de nettoyer la face extérieure de l'orifice de coulée du ciment qui a servi à fixer la plaque usagée. Ce nettoyage est généralement effectué à l'aide d'un burin et d'un marteau. Enfin il faut faire un nouveau joint de ciment pour fixer la plaque neuve.However, it is necessary to periodically change the refractory plates due to their erosion, mainly due to the movements of the drawer. Such a change requires first of all to undo the cement joint, then to clean the outside of the cement pouring orifice which served to fix the used plate. This cleaning is generally carried out using a chisel and hammer. Finally, a new cement joint must be made to fix the new plate.

Ce procédé connu occasionne de nombreux inconvénients. Le nettoyage de la face extérieure de l'orifice de coulée est effectuée dans des conditions très pénibles pour l'ouvrier.This known process has many drawbacks. The cleaning of the external face of the pouring orifice is carried out under conditions which are very painful for the worker.

En effet on ne peut généralement pas attendre le refroidissement du conteneur métallurgique parce que la durée de ce refroidissement conduirait à une immobilisation coûteuse du conteneur.In fact, one cannot generally wait for the metallurgical container to cool down because the duration of this cooling would lead to costly immobilization of the container.

De plus il y a des risques d'endommager l'orifice de coulée lorsqu'on le nettoie et de réduire en conséquence sa durée de fonctionnement.In addition, there are risks of damaging the pouring hole when it is cleaned and of reducing its operating time accordingly.

Enfin il est nécessaire que la plaque fixe soit mise en place du premier coup parce que le ciment prend rapidement en raison de la température élevée de l'orifice de coulée. Si la plaque a été mal posée, il sera nécessaire de refaire complètement le joint.Finally it is necessary that the fixed plate is put in place the first time because the cement sets quickly due to the high temperature of the pouring orifice. If the plate has been installed incorrectly, it will be necessary to completely redo the seal.

Ces inconvénients sont particulièrement aggravés dans le cas des convertisseurs pour lesquels tout arrêt implique une perte de production. Même le temps nécessaire au nettoyage doit être réduit au minimum. Les conditions de travail sont donc particulièrement pénibles, d'autant plus que les dimensions de l'obturateur à tiroir sont beaucoup plus grandes que celles des autres conteneurs (poches, répartiteurs) et que le convertisseur, contrairement aux poches et aux répartiteurs, ne peut être déplacé hors de son ambiance de travail.These drawbacks are particularly aggravated in the case of converters for which any shutdown implies a loss of production. Even the time required for cleaning should be kept to a minimum. The working conditions are therefore particularly difficult, especially since the dimensions of the drawer shutter are much larger than those of other containers (pockets, distributors) and that the converter, unlike pockets and distributors, cannot be moved out of his work environment.

On connait également (FR-A-2 436 923) un obturateur à tiroir muni d'une plaque d'obturation pleine ou comportant un trou de passage pour le métal. Cette plaque d'obturation est disposée entre deux plaques, respectivement une plaque supérieure et une plaque de support inférieure sur laquelle est fixé un tube de coulée. Dans un dispositif de ce genre, la plaque supérieure est une plaque de travail. En d'autres termes, la plaque d'obturation frotte contre sa face inférieure à chaque mouvement du tiroir. Cette face s'érode donc relativement rapidement ce qui oblige à changer la plaque supérieure à chaque changement de la plaque d'obturation.There is also known (FR-A-2 436 923) a drawer shutter provided with a full shutter plate or having a through hole for the metal. This closure plate is disposed between two plates, respectively an upper plate and a lower support plate on which is fixed a pouring tube. In such a device, the top plate is a work plate. In other words, the closure plate rubs against its underside with each movement of the drawer. This face therefore erodes relatively quickly which forces the upper plate to be changed each time the plate is changed. shutter.

La présente invention a pour objet un dispositif de coulée et un procédé de mise en oeuvre de ce dispositif qui résolvent ces problèmes.The present invention relates to a casting device and a method of implementing this device which solve these problems.

Ces buts sont atteints par le fait:

  • que l'orifice de coulée du conteneur métallurgique est aménagé de manière à comporter une surface de jonction à la plaque fixe de l'obturateur;
  • que la plaque fixe comporte une surface de jonction adaptée à la surface de jonction de l'orifice de coulée;
  • que des moyens de pression permettent de presser la surface de jonction de la plaque fixe contre la surface de jonction de l'orifice de coulée de manière qu'une étanchéité entre ces deux surfaces est assurée en l'absence de mortier, de joint cimenté ou de fibres, de colle ou de tout autre moyen ajouté pour assurer l'étanchéité.
These goals are achieved by:
  • that the pouring orifice of the metallurgical container is arranged so as to include a junction surface with the fixed plate of the shutter;
  • that the fixed plate has a junction surface adapted to the junction surface of the pouring orifice;
  • that pressure means make it possible to press the junction surface of the fixed plate against the junction surface of the pouring orifice so that a seal between these two surfaces is ensured in the absence of mortar, cemented joint or fibers, glue or any other means added to ensure watertightness.

Du fait que l'on réalise une étanchéité par simple serrage de deux surfaces l'une contre l'autre, il n'est plus nécessaire de réaliser un joint cimenté, ou d'utiliser un autre moyen d'étanchéité tel qu'un joint de fibre ou une colle, comme selon l'art antérieur. Par suite, il n'est pas nécessaire de nettoyer l'orifice de coulée et de cimenter une nouvelle plaque fixe. Il en résulte un gain de temps très important et un travail beaucoup plus facile pour les opérateurs. D'autre part le procédé est plus sûr car le risque d'avoir à refaire un joint cimenté défectueux, comme cela arrive avec le procède de l'art antérieur, est supprimé.Because a seal is produced by simply clamping two surfaces together, it is no longer necessary to make a cemented joint, or to use another sealing means such as a joint of fiber or an adhesive, as according to the prior art. As a result, there is no need to clean the pouring hole and cement a new fixed plate. This results in a very significant time saving and a much easier work for the operators. On the other hand the method is safer because the risk of having to redo a defective cemented joint, as happens with the method of the prior art, is eliminated.

De préférence la surface de jonction de l'orifice de coulée et la surface de jonction de la plaque fixe sont planes. Bien que cette caractéristique ne soit pas indispensable, la planéité de ces deux surfaces facilite la mis en place et/ou le retrait de la plaque fixe par glissement sur la surface de jonction de l'orifice de coulée.Preferably the junction surface of the pouring orifice and the junction surface of the fixed plate are planar. Although this characteristic is not essential, the flatness of these two surfaces facilitates the positioning and / or removal of the fixed plate by sliding on the junction surface of the pouring orifice.

Dans une réalisation préférée la surface de jonction de l'orifice de coulée est constituée d'une plaque réfractaire. Cette plaque est changée entre deux coulées alors que le conteneur est vide et que l'acier ne coule pas. Il est donc impossible que de l'acier s'introduise entre cette plaque de jonction et la plaque fixe.In a preferred embodiment, the junction surface of the pouring orifice consists of a refractory plate. This plate is changed between two castings while the container is empty and the steel does not flow. It is therefore impossible for steel to get between this junction plate and the fixed plate.

Il en va autrement dans le cas de la plaque supérieure du document FR-A-2 436 923. L'acier peut s'introduire entre la plaque supérieure fixe et la plaque d'obturation parce que cette dernière est manoeuvrée en présence de l'acier.The situation is different in the case of the upper plate of document FR-A-2 436 923. Steel can be introduced between the fixed upper plate and the closure plate because the latter is operated in the presence of the steel.

De préférence des moyens sont prévus pour faciliter la mise en place et/ou le retrait d'au moins la plaque fixe par glissement sur ladite surface plane de jonction.Preferably means are provided to facilitate the positioning and / or removal of at least the fixed plate by sliding on said planar junction surface.

Ces moyens pour faciliter la mise en place et/ou le retrait d'au moins la plaque fixe peuvent être constitués par au moins une surface de guidage du côté de l'introduction de la plaque fixe, surface qui prolonge sensiblement la surface de jonction de l'orifice de coulée de manière à assurer un pré-guidage de la plaque fixe par rapport à la surface de jonction de l'orifice de coulée.These means to facilitate the introduction and / or removal of at least the fixed plate can be constituted by at least one guide surface on the side of the introduction of the fixed plate, a surface which substantially extends the junction surface of the pouring orifice so as to ensure a pre-guiding of the fixed plate with respect to the junction surface of the pouring orifice.

L'idéal serait que la surface de guidage soit exactement au même niveau que la surface de jonction. Mais cela n'est pas réalisable mécaniquement à cause des tolérances d'usinage. Le niveau de la surface de guidage est donc égal par défaut (c'est-à-dire aux tolérances d'usinage près) au niveau de la surface de jonction de l'orifice de coulée, un chanfrein étant prévu pour faciliter la mise en place de la plaque fixe sur la surface de jonction de l'orifice de coulée.Ideally, the guide surface should be exactly at the same level as the junction surface. However, this cannot be done mechanically because of the machining tolerances. The level of the guide surface is therefore equal by default (that is to say, to the machining tolerances) at the level of the junction surface of the pouring orifice, a chamfer being provided to facilitate positioning. place the fixed plate on the junction surface of the pouring orifice.

De préférence les moyens de pression pour serrer la surface de jonction de la plaque fixe contre la surface de jonction de l'orifice de coulée sont agencés de manière à agir pendant la mise en place et/ou le retrait par glissement d'au moins la plaque fixe afin d'éliminer les déchets restés éventuellement sur cette surface.Preferably the pressure means for clamping the junction surface of the fixed plate against the junction surface of the pouring orifice are arranged so as to act during the positioning and / or the sliding removal of at least the fixed plate in order to eliminate the waste possibly remaining on this surface.

Les moyens de déplacement pour mettre en place et/ou retirer la plaque fixe par glissement sur la surface de jonction de l'orifice de coulée sont de préférence les mêmes que les moyens pour déplacer la plaque mobile par rapport à la plaque fixe.The displacement means for positioning and / or removing the fixed plate by sliding on the junction surface of the pouring orifice are preferably the same as the means for moving the movable plate relative to the fixed plate.

Le dispositif comporte de préférence: un bâti; un cadre d'entraînement de la plaque fixe; un cadre d'entraînement de la plaque mobile; des moyens de déplacement du cadre d'entraînement de la plaque mobile, ces moyens constituant les moyens de déplacement de la plaque mobile mentionnés précédemment; des moyens pour solidariser le cadre d'entraînement de la plaque fixe soit avec le bâti, soit avec le cadre d'entraînement de la plaque mobile.The device preferably comprises: a frame; a fixed plate drive frame; a movable plate drive frame; means for moving the driving frame of the movable plate, these means constituting the means for moving the movable plate mentioned above; means for securing the drive frame of the fixed plate either with the frame, or with the drive frame of the movable plate.

Les moyens pour solidariser le cadre d'entraînement de la plaque fixe soit avec le bâti, soit avec le cadre d'entraînement de la plaque mobile sont, dans un mode préféré, constitués par un verrou à deux positions monté sur le cadre d'entraînement de la plaque fixe, ce verrou immobilisant le cadre d'entraînement de la plaque fixe par rapport au bâti dans une première position et par rapport au cadre d'entraînement de la plaque mobile dans la seconde position, les moyens de déplacement du cadre d'entraînement de la plaque mobile présentant une course suffisante pour déplacer l'ensemble des deux cadres jusqu'à libérer la plaque fixe de l'emprise des moyens de pression de la plaque fixe contre la surface de jonction de l'orifice de coulée.
De préférence le dispositif comporte une butée fixe par rapport au bâti contre laquelle la plaque fixe vient en butée en fin d'introduction, le verrou comportant des moyens de récupération de jeu pour bloquer ladite plaque fixe contre la butée par l'intermédiaire du cadre d'entraînement de la plaque fixe de telle sorte que la plaque fixe et le cadre d'entraînement de la plaque fixe sont ensemble immobilisés par rapport au bâti.The means for securing the drive frame of the fixed plate either with the frame or with the drive frame of the movable plate are, in a preferred mode, constituted by a two-position lock mounted on the drive frame of the fixed plate, this lock immobilizing the drive frame of the fixed plate relative to the frame in a first position and relative to the drive frame of the movable plate in the second position, the means for moving the frame drive of the movable plate having a sufficient stroke to move the assembly of the two frames until releasing the fixed plate from the grip of the pressure means of the fixed plate against the junction surface of the pouring orifice.
Preferably the device comprises a fixed stop relative to the frame against which the fixed plate abuts at the end of introduction, the lock comprising clearance recovery means for blocking said fixed plate against the stop via the drive frame of the fixed plate so that the fixed plate and the drive frame of the fixed plate are immobilized together with respect to the frame .

Les moyens de serrage de la plaque fixe contre la surface de jonction de l'orifice de coulée sont de préférence les mêmes que les moyens de pression pour presser la plaque mobile contre la plaque fixe.The means for clamping the fixed plate against the junction surface of the pouring orifice are preferably the same as the pressure means for pressing the movable plate against the fixed plate.

La surface de jonction de l'orifice de coulée peut être constituée d'une plaque réfractaire entourant l'orifice de coulée montée sur un support métallique permettant d'assurer une fixation rigide de ladite plaque réfractaire sur le conteneur métallurgique.The junction surface of the pouring orifice can consist of a refractory plate surrounding the pouring orifice mounted on a metal support making it possible to rigidly fix said refractory plate to the metallurgical container.

Le support métallique peut présenter au moins une portion de surface co-planaire avec la plaque réfractaire de manière à agrandir la surface d'appui de la plaque fixe sur la surface de jonction de l'orifice de coulée.The metal support may have at least a portion of surface co-planar with the refractory plate so as to enlarge the bearing surface of the fixed plate on the junction surface of the pouring orifice.

Des plots en une matière compatible avec celle de la plaque réfractaire du point de vue d'un usinage au moyen d'un même outil peuvent être fixés rigidement sur le support métallique et usinés co-planaires avec la plaque réfractaire de manière à agrandir la surface d'appui de la plaque fixe contre la surface de jonction.Studs made of a material compatible with that of the refractory plate from the point of view of machining by means of the same tool can be rigidly fixed on the metal support and machined co-planar with the refractory plate so as to enlarge the surface of the fixed plate against the junction surface.

L'invention concerne également un procédé de mise en oeuvre du dispositif. Ce procédé de remplacement d'au moins la plaque fixe dudit obturateur à tiroir se caractérise en ce qu'on réalise un joint sans ciment entre l'orifice de coulée du conteneur métallurgique et la plaque fixe de l'obturateur en serrant une surface de jonction de la plaque fixe contre une surface de jonction de l'orifice de coulée.The invention also relates to a method of implementing the device. This method of replacing at least the fixed plate of said drawer obturator is characterized in that a cementless joint is produced between the pouring orifice of the metallurgical container and the fixed plate of the obturator by tightening a junction surface of the fixed plate against a junction surface of the pouring orifice.

De préférence au moins la plaque fixe est amenée et/ou retirée latéralement par rapport à l'orifice de coulée et glissée sous des moyens de pression préalablement à ce que la plaque fixe ne commence à recouvrir et/ou découvrir l'organe de coulée du conteneur.Preferably at least the fixed plate is brought and / or removed laterally relative to the pouring orifice and slid under pressure means before the fixed plate begins to cover and / or uncover the casting member of the container.

D'autres caractéristiques et avantages de la présente invention apparaîtront encore à la lecture de la description qui suit d'exemples de réalisations donnés, à titre purement illustratif, en référence aux figures annexées. Sur ces figures:

  • la fig 1 est une vue d'ensemble qui montre un dispositif de coulée conforme à l'invention;
  • la fig 2 est une vue schématique en coupe qui illustre le dispositif et le procédé de l'invention;
  • la fig 3 est une vue en coupe d'un mode de réalisation préféré de la présente invention;
  • la fig 4 est une vue en coupe du mode de réalisation représenté sur la fig 3, selon un plan de coupe perpendiculaire, qui montre en particulier les moyens de pression de ce dispositif;
  • la fig 5 est une vue en coupe d'une variante du mode de réalisation des figures 3 et 4 représenté en position ouverte;
  • la fig 6 est une vue en coupe d'un mode de réalisation particulier de la surface de jonction de l'orifice de coulée;
  • la fig 7 est une vue en coupe d'un autre mode de réalisation particulier de la surface de jonction de l'orifice de coulée.
Other characteristics and advantages of the present invention will appear on reading the following description of examples of embodiments given, purely by way of illustration, with reference to the appended figures. In these figures:
  • Fig 1 is an overview which shows a casting device according to the invention;
  • Fig 2 is a schematic sectional view illustrating the device and the method of the invention;
  • Fig 3 is a sectional view of a preferred embodiment of the present invention;
  • Fig 4 is a sectional view of the embodiment shown in Fig 3, along a perpendicular section plane, which shows in particular the pressure means of this device;
  • Fig 5 is a sectional view of a variant of the embodiment of Figures 3 and 4 shown in the open position;
  • Fig 6 is a sectional view of a particular embodiment of the junction surface of the pouring orifice;
  • Fig 7 is a sectional view of another particular embodiment of the junction surface of the pouring orifice.

On a représenté sur la figure 1 une vue d'ensemble du dispositif de coulée. Le conteneur métallurgique, désigné par la référence générale 1. Ce conteneur peut être un répartiteur, ou une poche, ou encore, comme dans l'exemple illustré, un convertisseur pour l'élaboration de l'acier. Un obturateur à tiroir, désigné par la référence générale 10, est fixé sous le conteneur. L'acier contenu dans le convertisseur est versé dans une poche 3.There is shown in Figure 1 an overview of the casting device. The metallurgical container, designated by the general reference 1. This container can be a distributor, or a pocket, or even, as in the example illustrated, a converter for the production of steel. A drawer shutter, designated by the general reference 10, is fixed under the container. The steel contained in the converter is poured into a pocket 3.

On a représenté sur la figure 2 une vue schématique en coupe du dispositif. La paroi d'acier 2 du conteneur est recouverte par une couche protectrice 4 de matériau réfractaire, par exemple des briques. Un trou de coulée 6 permet la sortie du métal hors du convertisseur. L'orifice de ce trou est délimité par une surface extérieure 8, plane dans l'exemple représenté. Cette surface 8 constitue une surface de jonction.There is shown in Figure 2 a schematic sectional view of the device. The steel wall 2 of the container is covered by a protective layer 4 of refractory material, for example bricks. A tap hole 6 allows the metal to exit the converter. The orifice of this hole is delimited by an outer surface 8, flat in the example shown. This surface 8 constitutes a junction surface.

L'obturateur à tiroir 10 fixé sous le conteneur se compose d'un bâti 12 fixé sur la paroi extérieure 2 du conteneur métallurgique. Dans le bâti on trouve un ensemble de deux plaques, à savoir une plaque fixe 14 et une plaque mobile 16. Chacune des plaques comporte un ou plusieurs orifices pour le passage du métal et est entourée par un cadre, respectivement 20 et 22. Ces deux plaques sont enfermées dans un boitier 24. Des moyens de pression, représentés schématiquement par les ressorts 26, permettent de presser la plaque fixe 14 contre la plaque mobile 16. Un moyen d'actionnement, tel qu'un vérin hydraulique 28, dont la tige est connectée au cadre 22 de la plaque mobile permet de déplacer la plaque mobile par rapport à la plaque fixe. Ce déplacement permet, de manière connue, de faire varier le recouvrement des orifices des deux plaques de manière à contrôler ou arrêter totalement le passage du métal. Bien que, dans l'exemple représenté, le tiroir comporte deux plaques seulement, il pourrait en comporter davantage, par exemple trois ou plus.The drawer shutter 10 fixed under the container consists of a frame 12 fixed on the outer wall 2 of the metallurgical container. In the frame there is a set of two plates, namely a fixed plate 14 and a movable plate 16. Each of the plates has one or more orifices for the passage of the metal and is surrounded by a frame, respectively 20 and 22. These two plates are enclosed in a box 24. Pressure means, represented schematically by the springs 26, make it possible to press the fixed plate 14 against the movable plate 16. An actuating means, such as a hydraulic cylinder 28, the rod of which is connected to the frame 22 of the movable plate makes it possible to move the movable plate relative to the fixed plate. This movement makes it possible, in known manner, to vary the overlap of the orifices of the two plates so as to completely control or stop the passage of the metal. Although in the example shown, the drawer has only two plates, it could have more, for example three or more.

Le boitier 24 est à son tour pressé par des moyens de pression 30 contre la surface 8, qui termine l'orifice de coulée de manière que le dos de la plaque fixe, qui comporte une surface de jonction 32 adaptée à la surface 8 soit appliqué de façon suffisamment forte pour créer une étanchéité au métal. Les qualités de surfaces en présence sont bien entendu de qualité suffisante pour assurer cette étanchéité. La surface de jonction doit être suffisamment grande pour que les moyens de pression n'exercent pas d'effort en porte-à-faux. Etant donné que les moyens de pression pour serrer l'une contre l'autre la plaque fixe et la plaque mobile sont différents des moyens de pression pour plaquer la surface de jonction de la plaque fixe contre la surface de jonction de l'orifice de coulée, il est possible de faire varier les pressions par unité de surface indépendamment l'une de l'autre.The housing 24 is in turn pressed by pressure means 30 against the surface 8, which terminates the pouring orifice so that the back of the fixed plate, which has a junction surface 32 adapted to the surface 8 is applied strong enough to create a metal seal. The qualities of surfaces present are of course of sufficient quality to ensure this seal. The junction surface must be large enough so that the pressure means do not exert a cantilever force. Since the pressure means for clamping the fixed plate and the movable plate against each other are different from the pressure means for pressing the junction surface of the fixed plate against the junction surface of the pouring orifice , it is possible to vary the pressures per unit area independently of each other.

Etant donné qu'il n'y a pas de mouvement relatif de la plaque fixe par rapport à la surface de jonction, et que, d'autre part, les moyens de pressions sont concentrés autour de l'orifice de coulée, il n'est pas nécessaire de disposer d'une surface d'appui de la plaque fixe sur la surface de jonction au delà de la zone soumise à l'action des moyens de pression. Par suite la surface de jonction 8 est plus petite que la plaque fixe. C'est pourquoi il est avantageux de prévoir des moyens pour faciliter la mise en place et/ou le retrait d'au moins la plaque fixe par glissement sur ladite surface plane de jonction. Ces moyens sont constitués par une surface de guidage 34. Cette surface est située du côté de l'orifice de coulée 6 par où la plaque fixe doit être introduite. Elle est située sensiblement dans le plan de la surface de jonction. Toutefois, comme il n'est pas possible, compte tenu des tolérances de fabrication, de réaliser deux surface parfaitement co-planaires, la surface de guidage 34 pourra être légèrement en retrait par rapport à ce plan, comme représenté sur la fig 1. Un chanfrein sera alors prévu sur la plaque fixe ou sur la surface de jonction pour faciliter la mise en place de la plaque fixe en absorbant la différence de niveau.Since there is no relative movement of the fixed plate with respect to the junction surface, and since, on the other hand, the pressure means are concentrated around the pouring orifice, there is no it is not necessary to have a bearing surface of the fixed plate on the junction surface beyond the area subjected to the action of the pressure means. As a result the junction surface 8 is smaller than the fixed plate. This is why it is advantageous to provide means to facilitate the positioning and / or removal of at least the fixed plate by sliding on said planar junction surface. These means consist of a guide surface 34. This surface is located on the side of the pouring orifice 6 through which the fixed plate must be introduced. It is located substantially in the plane of the junction surface. However, as it is not possible, taking into account manufacturing tolerances, to produce two perfectly co-planar surfaces, the guide surface 34 may be slightly set back from this plane, as shown in FIG. chamfer will then be provided on the fixed plate or on the junction surface to facilitate the positioning of the fixed plate by absorbing the difference in level.

Dans l'exemple représenté on change non seulement la plaque fixe seule, mais l'ensemble du boîtier comprenant les deux plaques. Ce changement s'effectue de la manière suivante.In the example shown, not only the fixed plate alone is changed, but the entire housing comprising the two plates. This change is made as follows.

On retire d'abord le boitier 24 contenant les plaques fixe(s) et mobile(s) usagées en les faisant glisser sur la surface de jonction 8 puis sur la surface de guidage 34 à l'aide du vérin 28 jusqu'à ce qu'ils ne soient plus soumis à l'action des moyens de pression 30. Ceci a pour effet de cisailler les déchets qui se trouvent sur la surface de jonction. En particulier, si un anneau d'acier s'est formé à la jonction entre la surface de jonction de l'orifice de coulée et la plaque fixe, cet anneau sera cisaillé et les déchets évacués par le trou de coulée 6. Le boîtier est ensuite déconnecté de la tige du vérin 28 et déposé.The housing 24 containing the used fixed and mobile plates is first removed by sliding them on the junction surface 8 and then on the guide surface 34 using the jack 28 until 'They are no longer subjected to the action of the pressure means 30. This has the effect of shearing the waste which is on the junction surface. In particular, if a steel ring has formed at the junction between the junction surface of the pouring orifice and the fixed plate, this ring will be sheared and the waste evacuated through the taphole 6. The housing is then disconnected from the cylinder rod 28 and removed.

On met un nouveau boitier 24 contenant des plaques neuves sur la surface d'appui 34, on connecte la tige du vérin, puis on introduit le boîtier en le faisant glisser sur la surface de guidage 34. Il est introduit sous les moyens de pression 30 avant que la surface de jonction de la plaque fixe ne monte sur la surface de jonction 8. Lorsque cela se produit, les moyens de pression agissent de sorte que la surface de jonction est nettoyée.We put a new box 24 containing new plates on the bearing surface 34, we connect the cylinder rod, then we introduce the box by sliding it on the guide surface 34. It is introduced under the pressure means 30 before the junction surface of the fixed plate rises on the junction surface 8. When this occurs, the pressure means act so that the junction surface is cleaned.

On a représenté sur les fig 3 et 4 un autre mode de réalisation d'un dispositif de coulée conforme à l'invention. Ce dispositif comporte un bâti massif 12 fixé sur une paroi extérieure 2 du conteneur métallurgique. Dans un évidement du bâti est montée une plaque de jonction 36 rapportée et cimentée sur l'extrémité du trou de coulée. La surface extérieure de cette plaque 36 constitue la surface de jonction 8. La plaque fixe est ici constituée de la plaque réfractaire elle-même et d'une enveloppe 38. La plaque mobile est constituée de la plaque réfractaire elle-même, d'un support 40 et d'une busette collectrice 42, séparée ou réalisée d'une seule pièce avec la plaque réfractaire. Les moyens de pression 26 seront décrits plus en détail en référence à la fig 4. On note cependant que dans ce mode de réalisation les moyens de serrage de la plaque fixe contre la surface de jonction de l'orifice de coulée sont les mêmes que les moyens de pression pour presser la plaque fixe 14 contre la plaque mobile 16. Les mêmes moyens remplissent donc deux fonctions distinctes.FIGS. 3 and 4 show another embodiment of a casting device according to the invention. This device comprises a solid frame 12 fixed on an outer wall 2 of the metallurgical container. In a recess of the frame is mounted a connecting plate 36 attached and cemented on the end of the tap hole. The outer surface of this plate 36 constitutes the junction surface 8. The fixed plate here consists of the refractory plate itself and an envelope 38. The movable plate consists of the refractory plate itself, a support 40 and a collecting nozzle 42, separate or produced in one piece with the refractory plate . The pressure means 26 will be described in more detail with reference to FIG. 4. It will however be noted that in this embodiment the means for clamping the fixed plate against the junction surface of the pouring orifice are the same as the pressure means for pressing the fixed plate 14 against the movable plate 16. The same means therefore fulfill two distinct functions.

La plaque fixe est placée dans le cadre d'entraînement de la plaque fixe 20 et la plaque mobile dans le cadre d'entraînement de la plaque mobile 22. La tige 44 du vérin 28 est retenue dans un logement du cadre d'entraînement de la plaque mobile 22. Le vérin 28 permet de déplacer la plaque mobile sur la plaque fixe de manière à contrôler, de manière connue, l'écoulement du métal hors du conteneur métallurgique.The fixed plate is placed in the drive frame of the fixed plate 20 and the movable plate in the drive frame of the movable plate 22. The rod 44 of the jack 28 is retained in a housing of the drive frame of the movable plate 22. The jack 28 makes it possible to move the movable plate on the fixed plate so as to control, in known manner, the flow of the metal out of the metallurgical container.

On a représenté sur la fig 4 une vue en coupe du mode de réalisation représenté sur la fig 3, selon un plan de coupe perpendiculaire. Cette figure montre en particulier le détail des moyens de pression désignés dans leur ensemble par la référence générale 26. Ils comprennent un ressort hélicoïdal 46 dont une extrémité est en appui sur le bâti 12 et l'autre sur un culbuteur 48. Le culbuteur transmet l'action du ressort, en sens inverse, sur la plaque mobile. L'action exercée sur la plaque mobile est retransmise à la plaque fixe, puis à la plaque de jonction 36.There is shown in Fig 4 a sectional view of the embodiment shown in Fig 3, along a perpendicular section plane. This figure shows in particular the detail of the pressure means designated as a whole by the general reference 26. They comprise a helical spring 46, one end of which is supported on the frame 12 and the other on a rocker arm 48. The rocker arm transmits the action of the spring, in opposite direction, on the movable plate. The action exerted on the movable plate is retransmitted to the fixed plate, then to the junction plate 36.

Revenant à la fig 3, on décrira maintenant en détail les moyens pour solidariser le cadre 20 d'entraînement de la plaque fixe soit avec le bâti 12, soit avec le cadre 22 d'entraînement de la plaque mobile. Ces moyens sont constitués par un verrou 50 à deux positions. Ce verrou est monté tournant sur le cadre 20 d'entraînement de la plaque fixe. Dans une première position, représentée sur la fig 3, il pénètre dans un logement 51 du bâti 12. Dans son autre position il pénètre dans un logement 53 prévu dans le cadre d'entraînement de la plaque mobile 22. Dans la première position il immobilise le cadre d'entraînement de la plaque fixe par rapport au bâti et, dans sa seconde position, par rapport au cadre d'entraînement de la plaque mobile. Le vérin 28 présente une course suffisante pour déplacer l'ensemble des deux cadres suffisamment pour libérer la plaque fixe de l'emprise des moyens de pression de la plaque fixe contre la surface de jonction de l'orifice de coulée.Returning to FIG. 3, we will now describe in detail the means for securing the frame 20 for driving the fixed plate either with the frame 12 or with the frame 22 for driving the movable plate. These means consist of a lock 50 with two positions. This lock is rotatably mounted on the drive frame 20 of the fixed plate. In a first position, shown in fig 3, it enters a housing 51 of the frame 12. In its other position it enters a housing 53 provided in the drive frame of the movable plate 22. In the first position it immobilizes the drive frame of the plate fixed relative to the frame and, in its second position, relative to the drive frame of the movable plate. The jack 28 has a sufficient stroke to move the assembly of the two frames sufficiently to release the fixed plate from the grip of the pressure means of the fixed plate against the junction surface of the pouring orifice.

Grâce au verrou à deux positions 50, le même moyen, à savoir le vérin 28, réalise successivement deux fonctions distinctes. D'une part, de manière conventionnelle, il permet de déplacer la plaque mobile (première position du verrou 50). D'autre part, il sert à l'extraction de la partie à changer et à la mise en place d'une nouvelle plaque fixe. Pour cela le verrou est placé dans sa deuxième position. L'action du vérin permet alors de déplacer d'un seul bloc la plaque fixe et la plaque mobile, solidarisées entre elles par le verrou 50.Thanks to the two-position lock 50, the same means, namely the jack 28, successively performs two distinct functions. On the one hand, conventionally, it makes it possible to move the movable plate (first position of the latch 50). On the other hand, it is used for extracting the part to be changed and for installing a new fixed plate. For this, the lock is placed in its second position. The action of the jack then makes it possible to move the fixed plate and the movable plate in one piece, joined together by the latch 50.

Une butée fixe 52 est prévue sur le bâti 12. La plaque fixe 14 vient en appui contre cette butée 52 à la fin de son introduction. Le verrou 50 comporte une surface 54 constituant des moyens de rattrapage de jeu pour bloquer la plaque fixe contre la butée 52 par l'intermédiaire du cadre d'entraînement de la plaque fixe. Cette surface 54 est par exemple une surface constituant une came hélicoïdale. Ainsi la plaque fixe et le cadre d'entraînement de la plaque fixe sont ensemble immobilisés sans jeu par rapport au bâti. Cette disposition a pour but d'empêcher un mouvement relatif de la plaque fixe par rapport à la surface de jonction. En effet la plaque mobile transmet des efforts tranchants a la plaque fixe. De tels efforts, qui sont importants, tendent à déplacer la plaque fixe. Si cette dernière n'était pas bloquée, elle se déplacerait par rapport à la surface de jonction de l'orifice de coulée, ce qui aurait pour conséquence une usure préjudiciable des surfaces en contact de la plaque fixe et de la surface de jonction.A fixed stop 52 is provided on the frame 12. The fixed plate 14 comes to bear against this stop 52 at the end of its introduction. The latch 50 has a surface 54 constituting means for taking up play to block the fixed plate against the stop 52 through the drive frame of the fixed plate. This surface 54 is for example a surface constituting a helical cam. Thus the fixed plate and the drive frame of the fixed plate are immobilized together without play with respect to the frame. The purpose of this arrangement is to prevent relative movement of the fixed plate with respect to the junction surface. Indeed the movable plate transmits forces sharp to the fixed plate. Such efforts, which are significant, tend to displace the fixed plate. If the latter was not blocked, it would move relative to the junction surface of the pouring orifice, which would result in detrimental wear of the surfaces in contact with the fixed plate and the junction surface.

On a représenté sur la fig 5, une variante de réalisation du tiroir de la fig 3 en position ouverte. Les pièces de même nature sont désignées par des numéros de référence identiques. On remarque que le verrou 50 est placé dans ladite deuxième position dans laquelle il solidarise la cadre d'entraînement 20 de la plaque fixe 14 avec le cadre d'entraînement 22 de la plaque mobile 16. Le vérin 28, dont la tige 44 est connectée au cadre 22 d'entraînement de la plaque mobile, a été utilisé pour pousser l'ensemble constitué par les deux cadres d'entraînement (fixe et mobile) et les plaques logées dans les ouvertures de ces cadres (plaque fixe 14 et plaque mobile 16). Ce mouvement a été poursuivi suffisamment pour que les plaques fixe et mobile soient entièrement libérées de l'action de moyens de pression 26. De cette manière elles peuvent être retirées librement sans avoir à ouvrir une porte comme cela se fait généralement dans les dispositifs de l'art antérieur.There is shown in Fig 5, an alternative embodiment of the drawer of Fig 3 in the open position. Parts of the same type are designated by identical reference numbers. Note that the latch 50 is placed in said second position in which it secures the drive frame 20 of the fixed plate 14 with the drive frame 22 of the movable plate 16. The jack 28, whose rod 44 is connected to the frame 22 for driving the movable plate, was used to push the assembly constituted by the two drive frames (fixed and movable) and the plates housed in the openings of these frames (fixed plate 14 and movable plate 16 ). This movement has been continued sufficiently so that the fixed and movable plates are entirely freed from the action of pressure means 26. In this way they can be removed freely without having to open a door as is generally done in the devices of the prior art.

La mise en place de nouvelles plaques s'effectue de la même manière. La plaque fixe 14 est d'abord posée à l'intérieur de l'ouverture du cadre d'entraînement 20 de la plaque fixe sur une surface d'appui du bâti 12 située (aux tolérances d'usinage près), dans le prolongement de la surface de jonction. La plaque mobile est ensuite posée sur la plaque fixe, à l'intérieur de l'ouverture du cadre d'entraînement 22 de la plaque mobile. Il n'est nécessaire d'effectuer ni connexion ni déconnexion parce que la tige du vérin reste fixée, pendant ces opérations, sur le cadre d'entraînement de la plaque mobile. Le vérin est alors actionné pour tirer l'ensemble qui pénètre latéralement par rapport à l'orifice de coulée sous les moyens de verrouillage 26, ce qui immobilise les deux plaques sans autre opération supplémentaire. La plaque fixe 14 est amenée et/ou retirée et glissée sous des moyens de pression 30 préalablement à ce que la plaque fixe 14) ne commence à recouvrir l'orifice de coulée du conteneur.The installation of new plates is carried out in the same way. The fixed plate 14 is first placed inside the opening of the drive frame 20 of the fixed plate on a support surface of the frame 12 located (except for machining tolerances), in the extension of the junction surface. The movable plate is then placed on the fixed plate, inside the opening of the drive frame 22 of the movable plate. It is not necessary to make any connection or disconnection because the cylinder rod remains fixed, during these operations, on the drive frame of the movable plate. The cylinder is then actuated to pull the assembly which penetrates laterally with respect to the pouring orifice under the locking means 26, which immobilizes the two plates without any other additional operation. The fixed plate 14 is brought in and / or withdrawn and slid under pressure means 30 before the fixed plate 14) begins to cover the pouring orifice of the container.

On a représenté sur les fig 6 et 7 deux variantes de réalisation de la plaque de jonction. Sur la fig 6, la plaque de jonction de l'orifice de coulée est constituée d'une plaque réfractaire 56 entourant l'orifice de coulée. La plaque 56 est solidaire d'un support métallique 58 permettant d'assurer une fixation rigide sur le conteneur métallurgique, par exemple par le biais de vis, de boulons, goujons ou analogue disposés dans les trous 60. La surface du support métallique 58 est co-planaire, au moins en partie, avec la surface de jonction 8. Ceci peut être obtenu par une rectification de ces deux surfaces après assemblage de la plaque réfractaire sur le support métallique. La surface du support métallique 58 permet d'agrandir la surface d'appui de la plaque fixe sur la surface de jonction et d'éviter un porte-à-faux de la plaque fixe.There are shown in Figs 6 and 7 two alternative embodiments of the junction plate. In FIG. 6, the junction plate of the pouring orifice consists of a refractory plate 56 surrounding the pouring orifice. The plate 56 is integral with a metal support 58 making it possible to ensure a rigid attachment to the metallurgical container, for example by means of screws, bolts, studs or the like placed in the holes 60. The surface of the metal support 58 is co-planar, at least in part, with the junction surface 8. This can be obtained by rectifying these two surfaces after assembly of the refractory plate on the metal support. The surface of the metal support 58 makes it possible to enlarge the bearing surface of the fixed plate on the junction surface and to avoid an overhang of the fixed plate.

Il n'est pas aisé d'usiner un métal tel que l'acier en même temps qu'un matériau réfractaire. En effet les meules qui convient pour l'acier ne sont pas adaptées aux matériaux réfractaires et inversement. Le mode de réalisation de la fig 7 permet de surmonter ce problème. Des plots 62 sont fixés rigidement sur le support métallique 58 et usinés co-planaires avec la plaque réfractaire 56 de manière à agrandir la surface d'appui de la plaque fixe 14 contre la surface de jonction 8. Les plots 62 sont réalisés en une matière compatible avec celle de la plaque réfractaire 56 du point de vue de l'usinage. Par exemple les plots 62 sont réalisés dans le même matériau réfractaire que celui de la plaque 56. Ainsi il est possible de les usiner simultanément sans difficultés.It is not easy to machine a metal such as steel at the same time as a refractory material. In fact, the grinding wheels which are suitable for steel are not suitable for refractory materials and vice versa. The embodiment of fig 7 overcomes this problem. Pads 62 are rigidly fixed on the metal support 58 and machined co-planar with the refractory plate 56 so as to enlarge the bearing surface of the fixed plate 14 against the junction surface 8. The pads 62 are made of a material compatible with that of the refractory plate 56 from the machining point of view. For example, the pads 62 are made of the same refractory material as that of the plate 56. Thus it is possible to machine them simultaneously without difficulty.

Claims (18)

Dispositif de coulée comprenant: - un conteneur métallurgique muni d'un orifice de coulée (6), notamment un convertisseur pour l'élaboration de l'acier; - un obturateur à tiroir pour ledit orifice de coulée, cet obturateur comprenant: au moins une plaque réfractaire fixe (14) comportant un orifice placé en regard de l'orifice de coulée; au moins une plaque réfractaire mobile (16) comportant au moins un orifice; des moyens de déplacement (28) pour déplacer la plaque mobile (16) par rapport à la plaque fixe (14) de manière à commander le recouvrement de l'orifice de la plaque fixe (14) et de la plaque mobile (16); des moyens de pression (26) qui permettent de serrer la plaque mobile (16) contre la plaque fixe (14), caractérisé par le fait que: - l'orifice de coulée (6) du conteneur métallurgique est aménagé de manière à comporter une surface de jonction (8) à la plaque fixe (14) de l'obturateur, - la plaque fixe (14) comporte une surface de jonction (32) adaptée à la surface de jonction (8) de l'orifice de coulée du conteneur métallurgique, - des moyens de pression (30) permettent de presser la surface de jonction (32) de la plaque fixe (14) contre la surface de jonction (8) de l'orifice de coulée de manière qu'une étanchéité est assurée entre ces deux surfaces en l'absence de mortier, de joint cimenté ou de fibres, de colle ou de tout autre moyen ajouté pour assurer l'étanchéité. Casting device comprising: - a metallurgical container provided with a pouring orifice (6), in particular a converter for the production of steel; - a drawer shutter for said pouring orifice, this shutter comprising: at least one fixed refractory plate (14) having an orifice placed opposite the pouring orifice; at least one movable refractory plate (16) having at least one orifice; displacement means (28) for displacing the movable plate (16) relative to the fixed plate (14) so as to control the covering of the orifice of the fixed plate (14) and the movable plate (16); pressure means (26) which allow the movable plate (16) to be clamped against the fixed plate (14), characterized in that: the pouring orifice (6) of the metallurgical container is arranged so as to comprise a junction surface (8) to the fixed plate (14) of the shutter, the fixed plate (14) has a joining surface (32) adapted to the joining surface (8) of the pouring orifice of the metallurgical container, - pressure means (30) allow the junction surface (32) of the fixed plate (14) to be pressed against the junction surface (8) of the pouring orifice so that a seal is ensured between these two surfaces in the absence of mortar, cemented joint or fibers, glue or any other means added to seal. Dispositif selon la revendication 1, caractérisé en ce que la surface de jonction (8) de l'orifice de coulée et la surface de jonction (32) de la plaque fixe (14) sont planes.Device according to claim 1, characterized in that the joining surface (8) of the pouring orifice and the joining surface (32) of the fixed plate (14) are planar. Dispositif selon l'une quelconque des revendications 1 et 2 caractérisé en ce que la surface de jonction (8) de l'orifice de coulée est constituée d'une plaque réfractaire (36,56,58)Device according to any one of claims 1 and 2 characterized in that the junction surface (8) of the pouring orifice consists of a refractory plate (36,56,58) Dispositif selon l'une quelconque des revendications 2 ou 3 caractérisé en ce que des moyens sont prévus pour faciliter la mise en place et/ou le retrait d'au moins la plaque fixe (14) par glissement sur ladite surface plane de jonction (8),ces moyens étant constitués par au moins une surface de guidage (34) du côté de l'introduction de la plaque fixe (14), surface qui prolonge sensiblement la surface de jonction (32) de l'orifice de coulée de manière à assurer un pré-guidage de la plaque fixe (14) par rapport à la surface de jonction (8) de l'orifice de coulée.Device according to any one of claims 2 or 3 characterized in that means are provided to facilitate the introduction and / or removal of at least the fixed plate (14) by sliding on said flat junction surface (8 ), these means being constituted by at least one guide surface (34) on the side of the introduction of the fixed plate (14), a surface which substantially extends the junction surface (32) of the pouring orifice so as to ensure a pre-guiding of the fixed plate (14) relative to the junction surface (8) of the pouring orifice. Dispositif selon la revendication 3 ou 4 caractérisé en ce que le niveau de la surface de guidage (34) est inférieur au niveau de la surface de jonction (8) de l'orifice de coulée, un chanfrein étant prévu pour faciliter la mise en place de la plaque fixe (14) sur la surface de jonction (8) de l'orifice de coulée.Device according to claim 3 or 4 characterized in that the level of the guide surface (34) is lower than the level of the junction surface (8) of the pouring orifice, a chamfer being provided to facilitate positioning of the fixed plate (14) on the junction surface (8) of the pouring orifice. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que les moyens de pression (30) pour serrer la surface de jonction (32) de la plaque fixe (14) contre la surface de jonction (8) de l'orifice de coulée sont agencés de manière à agir pendant la mise en place et/ou le retrait par glissement d'au moins la plaque fixe (14) afin d'éliminer les déchets restés éventuellement sur cette surface.Device according to any one of the preceding claims, characterized in that the pressure means (30) for clamping the junction surface (32) of the fixed plate (14) against the junction surface (8) of the pouring orifice are arranged so as to act during the positioning and / or the sliding removal of at least the fixed plate (14) in order to eliminate the waste possibly remaining on this surface. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que les moyens de déplacement (28) pour mettre en place et/ou retirer la plaque fixe (14) par glissement sur la surface de jonction (8) de l'orifice de coulée sont les mêmes que les moyens pour déplacer la plaque mobile (16) par rapport à la plaque fixe (14).Device according to any one of the preceding claims, characterized in that the displacement means (28) for placing and / or removing the fixed plate (14) by sliding on the junction surface (8) of the pouring orifice are the same as the means for moving the movable plate (16) relative to the fixed plate (14). Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce qu'il comporte: un bâti; un cadre (20) d'entraînement de la plaque fixe (14); un cadre (22) d'entraînement de la plaque mobile (16); des moyens de déplacement du cadre d'entraînement de la plaque mobile (16), ces moyens constituant les moyens de déplacement de la plaque mobile (16) mentionnés à la revendication 1; des moyens pour solidariser le cadre d'entraînement de la plaque fixe (14) soit avec le bâti, soit avec le cadre d'entraînement de la plaque mobile (16).Device according to any one of the preceding claims, characterized in that it comprises: a frame; a frame (20) for driving the fixed plate (14); a frame (22) for driving the movable plate (16); means for moving the moving plate driving frame (16), these means constituting the means for moving the moving plate (16) mentioned in claim 1; means for securing the drive frame of the fixed plate (14) either with the frame, or with the drive frame of the movable plate (16). Dispositif selon la revendication 8 caractérisé en ce que les moyens pour solidariser le cadre d'entraînement de la plaque fixe (14) soit avec le bâti, soit avec le cadre d'entraînement de la plaque mobile (16) sont constitués par un verrou (50) à deux positions, monté sur le cadre d'entraînement de la plaque fixe (14), ce verrou immobilisant le cadre d'entraînement de la plaque fixe (14) par rapport au bâti dans une première position et par rapport au cadre d'entraînement de la plaque mobile (16) dans la seconde position, les moyens de déplacement du cadre d'entraînement de la plaque mobile (16) présentant une course suffisante pour déplacer l'ensemble des deux cadres jusqu'à libérer la plaque fixe (14) de l'emprise des moyens de pression (30) de la plaque fixe (14) contre la surface de jonction (8) de l'orifice de coulée.Device according to claim 8 characterized in that the means for securing the drive frame of the fixed plate (14) either with the frame or with the drive frame of the movable plate (16) consist of a lock ( 50) in two positions, mounted on the drive frame of the fixed plate (14), this lock immobilizing the drive frame of the fixed plate (14) relative to the frame in a first position and relative to the frame d drive of the movable plate (16) in the second position, the means for moving the drive frame of the movable plate (16) having a stroke sufficient to move the assembly of the two frames until the fixed plate is released ( 14) of the grip of the pressure means (30) of the fixed plate (14) against the junction surface (8) of the pouring orifice. Dispositif selon la revendication 9 caractérisé en ce que le dispositif comporte une butée (52), fixe par rapport au bâti, contre laquelle la plaque fixe (14) vient en butée en fin d'introduction, le verrou (50) comportant des moyens de récupération de jeu pour bloquer ladite plaque fixe (14) contre la butée (52) par l'intermédiaire du cadre d'entraînement (20) de la plaque fixe (14) de telle sorte que la plaque fixe (14) et le cadre d'entraînement de la plaque fixe (14) sont ensemble immobilisés par rapport au bâti.Device according to Claim 9, characterized in that the device comprises a stop (52), fixed relative to the frame, against which the fixed plate (14) abuts at the end of introduction, the lock (50) comprising means for clearance recovery to block said fixed plate (14) against the stop (52) via the drive frame (20) of the fixed plate (14) so that the fixed plate (14) and the frame d 'drive of the fixed plate (14) are immobilized together relative to the frame. Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que les moyens de pression pour serrer la plaque fixe (14) contre la surface de jonction (8) de l'orifice de coulée sont les mêmes que les moyens de pression (30) pour presser la plaque mobile (16) contre la plaque fixe (14).Device according to any one of the preceding claims, characterized in that the pressure means for clamping the fixed plate (14) against the junction surface (8) of the pouring orifice are the same as the pressure means (30) to press the movable plate (16) against the fixed plate (14). Dispositif selon l'une quelconque des revendications 3 à 11 caractérisé en ce que la plaque (36) constituant la surface de jonction (8) de l'orifice de coulée est constituée d'une plaque réfractaire (56) entourant l'orifice de coulée montée sur un support métallique (58) permettant d'assurer une fixation rigide de ladite plaque sur le conteneur métallurgique.Device according to any one of Claims 3 to 11, characterized in that the plate (36) constituting the junction surface (8) of the pouring orifice consists of a refractory plate (56) surrounding the pouring orifice mounted on a metal support (58) to ensure rigid attachment of said plate on the metallurgical container. Dispositif selon la revendication 12 caractérisé en ce que le support métallique (58) présente au moins une portion de surface co-planaire avec la plaque réfractaire (56) de manière à agrandir la surface d'appui de la plaque fixe (14) sur la surface de jonction (8) de l'orifice de coulée.Device according to claim 12 characterized in that the metal support (58) has at least a portion of surface co-planar with the refractory plate (56) so as to enlarge the bearing surface of the fixed plate (14) on the junction surface (8) of the pouring orifice. Dispositif selon la revendication 12 ou 13 caractérisé en ce que des plots (62) en une matière compatible avec celle de la plaque réfractaire (56) du point de vue d'un usinage au moyen d'un même outil sont fixés rigidement sur le support métallique (58) et usinés co-planaires avec la plaque réfractaire de manière à agrandir la surface d'appui de la plaque fixe (14) contre la surface de jonction (8).Device according to claim 12 or 13 characterized in that studs (62) made of a material compatible with that of the refractory plate (56) from the point of view of machining by means of the same tool are rigidly fixed on the support metal (58) and machined co-planar with the refractory plate so as to enlarge the bearing surface of the fixed plate (14) against the junction surface (8). Dans un dispositif de coulée comprenant: -un conteneur métallurgique muni d'un orifice de coulée, notamment un convertisseur pour l'élaboration de l'acier; -un obturateur à tiroir pour ledit orifice de coulée, cet obturateur comprenant au moins: au moins une plaque réfractaire fixe comportant au moins un orifice placé en regard de l'orifice de coulée; au moins une plaque réfractaire mobile comportant au moins un orifice; des moyens de déplacement pour déplacer la plaque mobile (16) par rapport à la plaque fixe (14) de manière à commander le recouvrement de l'orifice de la plaque fixe (14) et de la plaque mobile (16); des moyens de pression qui permettent de serrer la plaque mobile (16) contre la plaque fixe (14), PROCÉDÉ de remplacement d'au moins la plaque fixe (14) dudit obturateur à tiroir, caractérisé en ce qu'on réalise une étanchéité sans ciment, mortier, de joint cimenté ou de fibres, colle ou tout autre moyen ajouté, entre l'orifice de coulée du conteneur métallurgique et la plaque fixe (14) de l'obturateur en serrant une surface de jonction (32) de la plaque fixe (14) contre une surface de jonction (8) de l'orifice de coulée.In a casting device comprising: a metallurgical container provided with a pouring orifice, in particular a converter for the production of steel; a slide shutter for said pouring orifice, this shutter comprising at least: at least one fixed refractory plate comprising at least one orifice placed opposite the pouring orifice; at least one plate mobile refractory comprising at least one orifice; moving means for moving the movable plate (16) relative to the fixed plate (14) so as to control the covering of the orifice of the fixed plate (14) and the movable plate (16); pressure means which allow the movable plate (16) to be clamped against the fixed plate (14), METHOD for replacing at least the fixed plate (14) of said slide valve, characterized in that a seal is produced without cement, mortar, cemented joint or fiber, glue or any other added means, between the pouring orifice of the metallurgical container and the fixed plate (14) of the obturator by tightening a junction surface (32) of the plate fixed (14) against a junction surface (8) of the pouring orifice. Procédé selon la revendication 15, caractérisé en ce qu'au moins la plaque fixe (14) est amenée et/ou retirée latéralement par rapport à l'orifice de coulée et glissée sous des moyens de pression (30) préalablement à ce que la plaque fixe (14) ne commence à découvrir et/ou recouvrir l'orifice de coulée du conteneur.Method according to claim 15, characterized in that at least the fixed plate (14) is brought and / or removed laterally relative to the pouring orifice and slid under pressure means (30) before the plate fixed (14) does not begin to discover and / or cover the pouring orifice of the container. Plaque de jonction pour un dispositif ou un procédé selon l'une quelconque des revendications précédentes.Junction plate for a device or method according to any one of the preceding claims. Plaque fixe pour un dispositif ou un procédé selon l'une quelconque des revendications précédentes.Fixed plate for a device or method according to any one of the preceding claims.
EP93401008A 1993-04-19 1993-04-19 Method and apparatus for casting with a cement-free joint of a metallurgical vessel and a casting gate Expired - Lifetime EP0621098B2 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
AT93401008T ATE220588T1 (en) 1993-04-19 1993-04-19 DEVICE AND METHOD FOR CASTING WITH A CEMENT-FREE CONNECTION OF THE SLIDING CLOSURE TO THE METALLURGICAL VESSEL
DE69332116T DE69332116T3 (en) 1993-04-19 1993-04-19 Apparatus and method for casting with a cementless connection of the sliding closure to the metallurgical vessel
ES93401008T ES2176196T5 (en) 1993-04-19 1993-04-19 COLADA DEVICE INCLUDING A UNCEMED UNION CONCRETE OF A METALLURGICAL CONTAINER TO A DRAWER DRAWER, AND APPLICATION PROCEDURE OF SUCH DEVICE.
EP93401008A EP0621098B2 (en) 1993-04-19 1993-04-19 Method and apparatus for casting with a cement-free joint of a metallurgical vessel and a casting gate
US08/214,286 US5400930A (en) 1993-04-19 1994-03-17 Slide gate valve having a cementless joint between the valve and a metallurgical vessel
PCT/EP1994/001211 WO1994023867A1 (en) 1993-04-19 1994-04-19 Slide gate valve having a cementless joint between the valve and a metallurgical vessel
AU65693/94A AU666624B2 (en) 1993-04-19 1994-04-19 Slide gate valve having a cementless joint between the valve and a metallurgical vessel
RU94046258A RU2145534C1 (en) 1993-04-19 1994-04-19 Gate type sliding closure and method for changing plates of sliding closure
BR9404968A BR9404968A (en) 1993-04-19 1994-04-19 Slide gate valve to regulate a flow of molten metal from a metallurgical vessel and valve plate replacement process for a slide gate valve installed in a metallurgical vessel
CA002137372A CA2137372C (en) 1993-04-19 1994-04-19 Slide gate valve having a cementless joint between the valve and a metallurgical vessel
JP52277194A JP3259962B2 (en) 1993-04-19 1994-04-19 Sliding gate valve device and method for replacing fixing plate for the device
MXPA94002807A MXPA94002807A (en) 1993-04-19 1994-04-19 Sliding valve for casting with a non-cement union between the valve and a metallurgic receptacle.
CN94190210A CN1057718C (en) 1993-04-19 1994-04-19 Slide gate valve having a cementless joint between the valve and a metallurgical vessel
US08/939,332 USRE36364E (en) 1993-04-19 1997-09-29 Slide gate valve having a cementless joint between the valve and the metallurgical vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93401008A EP0621098B2 (en) 1993-04-19 1993-04-19 Method and apparatus for casting with a cement-free joint of a metallurgical vessel and a casting gate

Publications (3)

Publication Number Publication Date
EP0621098A1 true EP0621098A1 (en) 1994-10-26
EP0621098B1 EP0621098B1 (en) 2002-07-17
EP0621098B2 EP0621098B2 (en) 2005-11-23

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EP93401008A Expired - Lifetime EP0621098B2 (en) 1993-04-19 1993-04-19 Method and apparatus for casting with a cement-free joint of a metallurgical vessel and a casting gate

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US (2) US5400930A (en)
EP (1) EP0621098B2 (en)
JP (1) JP3259962B2 (en)
CN (1) CN1057718C (en)
AT (1) ATE220588T1 (en)
AU (1) AU666624B2 (en)
BR (1) BR9404968A (en)
CA (1) CA2137372C (en)
DE (1) DE69332116T3 (en)
ES (1) ES2176196T5 (en)
MX (1) MXPA94002807A (en)
RU (1) RU2145534C1 (en)
WO (1) WO1994023867A1 (en)

Cited By (1)

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EP0819488A3 (en) * 1996-07-18 1998-03-11 Stopinc Aktiengesellschaft Sliding gate closure for a molten metal containing vessel

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BE1005987A3 (en) * 1992-06-16 1994-04-12 Int Ind Eng Sa Control device of casting speed.
ATE163583T1 (en) * 1993-04-19 1998-03-15 Vesuvius France Sa CERAMIC KIT FOR A CASTING CAP AND METHOD FOR CHANGING THE SAME
EP0727268B1 (en) * 1995-02-17 1999-04-14 Stopinc Aktiengesellschaft Sliding closure system for a container holding a bath of molten metal
DE10033904A1 (en) 2000-07-12 2002-01-31 Stopinc Ag Huenenberg Slider closure for casting molten metal, as well as an associated fireproof plate unit
WO2005024069A2 (en) * 2003-08-29 2005-03-17 Stopinc Aktiengesellschaft Tapping device for a crucible, especially for a converter
CN102006952B (en) * 2008-04-17 2016-03-23 斯托品克股份公司 Latch plate and the slip dead lock in the exit of the container for metal bath
JP5481374B2 (en) * 2008-05-16 2014-04-23 黒崎播磨株式会社 Sliding nozzle device
US20130048897A1 (en) * 2011-08-31 2013-02-28 P D K Llc Exchangeable valve plate assembly for a molten metal slide gate valve
CN105102155B (en) * 2013-03-27 2017-08-01 黑崎播磨株式会社 Sliding nozzle device
CN103525973B (en) * 2013-09-30 2015-07-29 马鞍山利尔开元新材料有限公司 A kind of slide plate slag-stopping tapping converter mechanism
EP3587002B1 (en) * 2018-06-26 2020-12-16 Refractory Intellectual Property GmbH & Co. KG Sliding closure for a metallurgical vessel
ES2966504T3 (en) * 2019-02-28 2024-04-22 Vesuvius Group Sa Sliding gate valve comprising a carriage

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GB2043217A (en) * 1979-03-02 1980-10-01 Flogates Ltd Spring device for sliding gate valve
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FR2436923A1 (en) * 1978-09-25 1980-04-18 Uss Eng & Consult SLIDING DOOR VALVE
GB2043217A (en) * 1979-03-02 1980-10-01 Flogates Ltd Spring device for sliding gate valve
DE2924118A1 (en) * 1979-06-15 1980-12-18 Zimmermann & Jansen Gmbh Bottom pour sliding stopper for pouring ladles - where spring pressure on overhanging end of sliding stopper plate is released when stopper is closed

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819488A3 (en) * 1996-07-18 1998-03-11 Stopinc Aktiengesellschaft Sliding gate closure for a molten metal containing vessel

Also Published As

Publication number Publication date
EP0621098B2 (en) 2005-11-23
CA2137372C (en) 2007-06-26
AU666624B2 (en) 1996-02-15
JPH07508223A (en) 1995-09-14
CA2137372A1 (en) 1994-10-27
BR9404968A (en) 1999-06-15
EP0621098B1 (en) 2002-07-17
MXPA94002807A (en) 2005-01-28
US5400930A (en) 1995-03-28
RU94046258A (en) 1996-10-27
ES2176196T5 (en) 2006-05-01
CN1057718C (en) 2000-10-25
JP3259962B2 (en) 2002-02-25
DE69332116D1 (en) 2002-08-22
USRE36364E (en) 1999-11-02
WO1994023867A1 (en) 1994-10-27
AU6569394A (en) 1994-11-08
CN1107274A (en) 1995-08-23
DE69332116T3 (en) 2006-09-28
ATE220588T1 (en) 2002-08-15
RU2145534C1 (en) 2000-02-20
DE69332116T2 (en) 2003-03-06
ES2176196T3 (en) 2002-12-01

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