EP0107563A1 - Plant for the continuous casting of steel - Google Patents

Plant for the continuous casting of steel Download PDF

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Publication number
EP0107563A1
EP0107563A1 EP19830401961 EP83401961A EP0107563A1 EP 0107563 A1 EP0107563 A1 EP 0107563A1 EP 19830401961 EP19830401961 EP 19830401961 EP 83401961 A EP83401961 A EP 83401961A EP 0107563 A1 EP0107563 A1 EP 0107563A1
Authority
EP
European Patent Office
Prior art keywords
continuous casting
grids
grid
cell
installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19830401961
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German (de)
French (fr)
Inventor
Jacques Barbe
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.)
Clecim SAS
Original Assignee
Clecim SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clecim SAS filed Critical Clecim SAS
Publication of EP0107563A1 publication Critical patent/EP0107563A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/14—Plants for continuous casting
    • B22D11/142—Plants for continuous casting for curved casting

Definitions

  • the present invention relates to a continuous steel casting installation, more particularly intended for the casting of products with square or rectangular section, such as slabs, blooms or billets.
  • the object of the invention is to improve the performance of this type of device in order to be able to increase the reliability of the installation as well as the casting speed.
  • the installation according to the invention makes it possible in particular to obtain, with respect to known devices, better mechanical resistance of the grids, relatively in particular to expansion, as well as a better distribution of the cooling water and a better flow of this after spraying. It is characterized in that it is provided with grids for supporting the cast product each composed of straight prismatic elements fixed on a metal support with high inertia, said support being pierced with orifices intended for the passage of water sprayers, and said prismatic elements being assembled so as to leave free, for each cell, at least two passages for the discharge of cooling water between said cell and at least two adjacent cells.
  • said cells are composed of squares or rectangles standing on one of their points.
  • the mold has its serrated lower edge so as to be able to fit into the serration formed by the upper part of said grid device.
  • the cast product 4 is supported at its exit from the mold by a wear grid 5 whose particular conformation is the main object of the invention, then, after a distance of one to two meters, by conventional rollers 6. Also very conventionally, the cast slab is cooled by spraying water jets from conventional sprayers 7 supplied by water supply ramps 8.
  • the wear grid 5 consists of metallic elements 10 in the shape of a rectangle with a thickness of the order of 5 cm, these straight prismatic elements 10 being made of cast iron or steel and being screwed onto a support plate 9 d neighboring thickness, also of cast iron or steel, possibly cooled by circulation of water although this is not the case in the drawing, and being fixed to the frame of the installation by means not shown.
  • the prismatic elements 10 are assembled three by three as shown in FIG. 2 so as to thus create cells 11 of rectangular section, standing on their point, and leaving on their lower side two passages 12 and 13, allowing the water to cooling to flow down as shown by the arrows in the drawing.
  • the support sheet 9 is pierced with orifices 14, one per cell 11, and leaving room for the projection nozzles 7.
  • the grid of the invention is shaped so that its upper part can be embedded in the serration 3 at the bottom of the mold 1.
  • the grid 5 is arranged so as to leave with the serration 3 a space 15 in which water projectors 16 of rectangular and very elongated shape pass.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

Plant for the continuous casting of steel, more especially intended for the continuous casting of square- or rectangular-section products such as slabs, blooms or billets. At the exit of the ingot mould (1), it is equipped with grids (5) for supporting the product, the said grids each being composed of right-angled prismatic elements (10) fixed on a thick metal sheet (9), or the like, pierced with orifices (14) intended for the passage of water sprayers (7). The said prismatic elements are assembled so as to leave free, for each cell (11), at least two passages (12, 13) for discharge of the cooling water, the said passages providing communication between the said cell and at least two adjacent cells. <IMAGE>

Description

La présente invention concerne une installation de coulée continue de l'acier, plus spécialement destinée à la coulée de produits à section carrée ou rectangulaire, tels que des brames, des blooms ou des billettes.The present invention relates to a continuous steel casting installation, more particularly intended for the casting of products with square or rectangular section, such as slabs, blooms or billets.

On connaît des installations de ce type dans lesquelles le produit coulé est soutenu immédiatement à sa sortie de la lingotière, par des grilles dont les alvéoles laissent un passage pour les buses de projection d'eau de refroidissement. Le brevet français 2.105.249 par exemple décrit une telle installation.Installations of this type are known in which the poured product is supported immediately upon leaving the ingot mold, by grids whose cells leave a passage for the cooling water spray nozzles. French patent 2,105,249 for example describes such an installation.

Le but de l'invention est d'améliorer les performances de ce genre de dispositif afin de pouvoir augmenter la fiabilité de l'installation ainsi que la vitesse de coulée. L'installation selon l'invention permet en particulier d'obtenir, par rapport aux dispositifs connus, une meilleure tenue mécanique des grilles, relativement en particulier aux dilatations, ainsi qu'une meilleure distribution de l'eau de refroidissement et un meilleur écoulement de celle-ci après pulvérisation. Elle est caractérisée en ce qu'elle est munie de grilles de support du produit coulé composées chacune d'éléments prismatiques droits fixés sur un support métallique à grande inertie, ledit support étant percé d'orifices destinés au passage des pulvérisateurs d'eau, et lesdits éléments prismatiques étant assemblés de manière à laisser libre, pour chaque alvéole, au moins deux passages pour l'évacuation de l'eau de refroidissement entre ladite alvéole et au moins deux alvéoles adjacentes.The object of the invention is to improve the performance of this type of device in order to be able to increase the reliability of the installation as well as the casting speed. The installation according to the invention makes it possible in particular to obtain, with respect to known devices, better mechanical resistance of the grids, relatively in particular to expansion, as well as a better distribution of the cooling water and a better flow of this after spraying. It is characterized in that it is provided with grids for supporting the cast product each composed of straight prismatic elements fixed on a metal support with high inertia, said support being pierced with orifices intended for the passage of water sprayers, and said prismatic elements being assembled so as to leave free, for each cell, at least two passages for the discharge of cooling water between said cell and at least two adjacent cells.

Avantageusement, lesdites alvéoles sont composées de carrés ou de rectangles debout sur une de leurs pointes. Avantageusement dans ce cas, la lingotière a son bord inférieur dentelé de manière à pouvoir s'encastrer dans la dentelure constituée par la partie supérieure dudit dispositif à grilles.Advantageously, said cells are composed of squares or rectangles standing on one of their points. Advantageously in this case, the mold has its serrated lower edge so as to be able to fit into the serration formed by the upper part of said grid device.

L'invention sera mieux comprise à l'aide de la description suivante d'un exemple préférentiel de réalisation, en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en coupe latérale schématique de la portion de l'installation de coulée continue comportant les éléments de l'invention.
  • la figure 2 est une vue en plan partielle d'un élément de grille de support équipant l'installation de la figure 1.
The invention will be better understood using the following description of a preferred embodiment, with reference to the accompanying drawings in which:
  • Figure 1 is a schematic side sectional view of the portion of the continuous casting installation comprising the elements of the invention.
  • FIG. 2 is a partial plan view of a support grid element fitted to the installation of FIG. 1.

On reconnaît sur la figure 1 la partie inférieure de la lingotière 1 refroidie en 2 par circulation d'eau. Conformément à un aspect optionnel mais avantageux de l'invention, le bord inférieur 3 de la lingotière est dentelé comme représenté sur le dessin.We recognize in Figure 1 the lower part of the lingo third 1 cooled in 2 by circulating water. According to an optional but advantageous aspect of the invention, the lower edge 3 of the mold is serrated as shown in the drawing.

De manière classique, le produit coulé 4 est soutenu à sa sortie de la lingotière par une grille d'usure 5 dont la conformation particulière est l'objet principal de l'invention, puis, après une distance d'un à deux mètres, par des rouleaux classiques 6. De manière très classique également, la brame coulée est refroidie par projection de jets d'eau issus de pulvérisateurs classiques 7 alimentés par des rampes d'amenée d'eau 8.Conventionally, the cast product 4 is supported at its exit from the mold by a wear grid 5 whose particular conformation is the main object of the invention, then, after a distance of one to two meters, by conventional rollers 6. Also very conventionally, the cast slab is cooled by spraying water jets from conventional sprayers 7 supplied by water supply ramps 8.

On se reportera maintenant également à la figure 2 pour la description de la grille d'usure de l'invention. La grille d'usure 5 est constituée d'éléments métalliques 10 en forme de rectangle d'une épaisseur de l'ordre de 5 cm, ces éléments prismatiques 10 droits étant en fonte ou en acier et étant vissés sur une tôle de support 9 d'épaisseur voisine, également en fonte ou en acier, éventuellement refroidie par circulation d'eau bien que ce ne soit pas le cas sur le dessin, et étant fixée sur le châssis de l'installation par des moyens non représentés. Les éléments prismatiques 10 sont assemblés trois par trois comme représenté sur la figure 2 de façon à créer ainsi des alvéoles 11 de section rectangulaire, debout sur leur pointe, et laissant sur leur côté inférieur deux passages 12 et 13, permettant à l'eau de refroidissement de s'écouler vers le bas comme représenté par les flèches sur le dessin. Evidemment, la tôle de support 9 est percée d'orifices 14, un par alvéole 11, et laissant la place pour les buses de projection 7.Reference will now also be made to FIG. 2 for the description of the wear grid of the invention. The wear grid 5 consists of metallic elements 10 in the shape of a rectangle with a thickness of the order of 5 cm, these straight prismatic elements 10 being made of cast iron or steel and being screwed onto a support plate 9 d neighboring thickness, also of cast iron or steel, possibly cooled by circulation of water although this is not the case in the drawing, and being fixed to the frame of the installation by means not shown. The prismatic elements 10 are assembled three by three as shown in FIG. 2 so as to thus create cells 11 of rectangular section, standing on their point, and leaving on their lower side two passages 12 and 13, allowing the water to cooling to flow down as shown by the arrows in the drawing. Obviously, the support sheet 9 is pierced with orifices 14, one per cell 11, and leaving room for the projection nozzles 7.

Par ailleurs, la grille de l'invention est conformée de façon à ce que sa partie supérieure puisse s'encastrer dans la dentelure 3 du bas de la lingotière 1. La grille 5 est disposée de manière à laisser avec la dentelure 3 un espace 15 dans lequel passent des projecteurs d'eau 16 de forme rectangulaire et très allongée.Furthermore, the grid of the invention is shaped so that its upper part can be embedded in the serration 3 at the bottom of the mold 1. The grid 5 is arranged so as to leave with the serration 3 a space 15 in which water projectors 16 of rectangular and very elongated shape pass.

On remarquera qu'avec la disposition de l'invention, on obtient une grille de soutien permettant une excellente répartition des dilatations et le long de laquelle l'eau projetée par les pulvérisateurs sur la surface du produit coulé 4 peut s'écouler sans perturber les pulvérisateurs voisins pour être finalement rejetée à l'extérieur de la ligne.It will be noted that with the arrangement of the invention, a support grid is obtained allowing an excellent distribution of the expansions and along which the water projected by the sprayers on the surface of the cast product 4 can flow without disturbing the neighboring sprayers to be finally discharged outside the line.

Claims (3)

1. Installation destinée à la coulée continue de produits à section carrée ou rectangulaire, ladite installation étant munie, à la sortie de la lingotière (1) de grilles (15) de support du produit,
caractérisée en ce que lesdites grilles sont composées chacune d'éléments prismatiques droits (10) fixés sur un support métallique à grande inertie (9), ledit support métallique étant percé d'orifices (14) destinés au passage des pulvérisateurs d'eau (7) et lesdits éléments prismatiques étant assemblés de manière à laisser libre, pour chaque alvéole (11) au moins deux passages (12, 13) pour l'évacuation de l'eau de refroidissement, lesdits passages faisant communiquer ladite alvéole avec au moins deux alvéoles adjacentes.1. Installation intended for the continuous casting of products with square or rectangular section, said installation being provided, at the outlet of the ingot mold (1) with grids (15) for supporting the product,
characterized in that said grids are each composed of straight prismatic elements (10) fixed on a metal support with high inertia (9), said metal support being pierced with orifices (14) intended for the passage of water sprayers (7 ) and said prismatic elements being assembled so as to leave free, for each cell (11) at least two passages (12, 13) for discharging the cooling water, said passages communicating said cell with at least two cells adjacent. 2. Installation de coulée continue selon la revendication 1, du type selon lequel les alvéoles de la grille sont composées de rectangles debout sur une de leurs pointes,
caractérisée en ce que le bord inférieur (3) de la lingotière associée est dentelé de manière à pouvoir s'encastrer dans la dentelure constituée par la partie supérieure dudit dispositif de support à grilles.2. Continuous casting installation according to claim 1, of the type according to which the cells of the grid are composed of rectangles standing on one of their points,
characterized in that the lower edge (3) of the associated ingot mold is serrated so as to be able to fit into the serration formed by the upper part of said grid support device. 3. Installation de coulée continue selon la revendication 2, caractérisée en ce que l'intervalle (15) laissé entre la dentelure inférieure (3) de la lingotière et la dentelure supérieure de chaque grille est équipée de pulvérisateurs (16) de forme allongée.3. Continuous casting installation according to claim 2, characterized in that the gap (15) left between the lower serration (3) of the mold and the upper serration of each grid is equipped with sprayers (16) of elongated shape.
EP19830401961 1982-10-08 1983-10-07 Plant for the continuous casting of steel Withdrawn EP0107563A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8216856A FR2534166A1 (en) 1982-10-08 1982-10-08 INSTALLATION OF CONTINUOUS CASTING OF STEEL
FR8216856 1982-10-08

Publications (1)

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EP0107563A1 true EP0107563A1 (en) 1984-05-02

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EP19830401961 Withdrawn EP0107563A1 (en) 1982-10-08 1983-10-07 Plant for the continuous casting of steel

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EP (1) EP0107563A1 (en)
FR (1) FR2534166A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815519A (en) * 1987-03-23 1989-03-28 Dujardin Montbard Somenor Z. I. Lille-Seclin Device for supporting and cooling a continuous casting emerging from a mold
DE19542180C1 (en) * 1995-11-03 1997-04-03 Mannesmann Ag Method and device for guiding strands of a continuous caster

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1118841A (en) * 1955-01-03 1956-06-12 Process and plant for metal casting
FR2002994A1 (en) * 1968-03-01 1969-11-07 Olsson Ag Erik PROCESS FOR SUPPORTING A CONTINUOUSLY CAST INGOT
FR2105249A1 (en) * 1970-09-04 1972-04-28 Concast Ag
FR2125411A1 (en) * 1971-02-11 1972-09-29 Rossi Irving
US3774671A (en) * 1971-10-07 1973-11-27 I Rossi Continuous casting apparatus with strand support means
FR2314002A2 (en) * 1975-06-13 1977-01-07 Fives Cail Babcock Continuous casting of steel slabs - using parallel row of bars, sepd. by coolant nozzles, to support and cool slab
EP0018350A1 (en) * 1979-04-20 1980-10-29 Max Burkhard Continuous-casting plant, especially for producing slabs

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1118841A (en) * 1955-01-03 1956-06-12 Process and plant for metal casting
FR2002994A1 (en) * 1968-03-01 1969-11-07 Olsson Ag Erik PROCESS FOR SUPPORTING A CONTINUOUSLY CAST INGOT
FR2105249A1 (en) * 1970-09-04 1972-04-28 Concast Ag
FR2125411A1 (en) * 1971-02-11 1972-09-29 Rossi Irving
US3774671A (en) * 1971-10-07 1973-11-27 I Rossi Continuous casting apparatus with strand support means
FR2314002A2 (en) * 1975-06-13 1977-01-07 Fives Cail Babcock Continuous casting of steel slabs - using parallel row of bars, sepd. by coolant nozzles, to support and cool slab
EP0018350A1 (en) * 1979-04-20 1980-10-29 Max Burkhard Continuous-casting plant, especially for producing slabs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815519A (en) * 1987-03-23 1989-03-28 Dujardin Montbard Somenor Z. I. Lille-Seclin Device for supporting and cooling a continuous casting emerging from a mold
DE19542180C1 (en) * 1995-11-03 1997-04-03 Mannesmann Ag Method and device for guiding strands of a continuous caster

Also Published As

Publication number Publication date
FR2534166B1 (en) 1984-11-30
FR2534166A1 (en) 1984-04-13

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Inventor name: BARBE, JACQUES