EP1042087B1 - Dispositif pour l'amenee de metal en fusion - Google Patents

Dispositif pour l'amenee de metal en fusion Download PDF

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Publication number
EP1042087B1
EP1042087B1 EP98966566A EP98966566A EP1042087B1 EP 1042087 B1 EP1042087 B1 EP 1042087B1 EP 98966566 A EP98966566 A EP 98966566A EP 98966566 A EP98966566 A EP 98966566A EP 1042087 B1 EP1042087 B1 EP 1042087B1
Authority
EP
European Patent Office
Prior art keywords
mould
casting nozzles
submerged casting
submerged
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98966566A
Other languages
German (de)
English (en)
Other versions
EP1042087A1 (fr
Inventor
Gerhard Böcher
Peter Müller
Wolfgang Reichelt
Ulrich Urlau
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.)
Salzgitter AG
SMS Siemag AG
Original Assignee
Salzgitter AG
SMS Demag AG
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 Salzgitter AG, SMS Demag AG filed Critical Salzgitter AG
Publication of EP1042087A1 publication Critical patent/EP1042087A1/fr
Application granted granted Critical
Publication of EP1042087B1 publication Critical patent/EP1042087B1/fr
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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/113—Treating the molten metal by vacuum treating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles

Definitions

  • the invention relates to a device for supplying molten metal, in particular of liquid steel, via immersion pipes in intermediate containers in a stationary mold of a slab caster, the intermediate container as pouring chamber provided with a vacuum pump, that with a main chamber is connected, in which the melt is supplied from the outside, is formed.
  • Such a device is known from FR 2675411.
  • the main outlets of the pouring tubes are on the side opposite one another arranged.
  • the disadvantage of this pouring system are the relatively large pouring tubes that require an extended mold pouring area.
  • a continuous caster is known in which (Figure 1) a ladle steel flows continuously into an intermediate vessel, which is a Has bottom opening through which the steel enters and leaves a fire-resistant pouring tube flows into a water-cooled, straight, vertically arranged oscillating mold.
  • Figure 5 two pouring tubes are used. Above the Bottom opening is a fire-proof pipe at a distance from the top edge of the bottom opening bringable, whereby inert gas can be fed into the pouring stream via this tube.
  • the disadvantage of this facility is the large geodetic height above the mouth of the Submerged pouring tube and thus the large kinetic energy that a pouring tube or two pouring tubes acts on the molten steel in the mold.
  • DE 195 12 209 discloses a method and a device in which metallic melt, in particular steel, via a from a casting container attached immersion pouring tube is guided into a vertically oscillating mold.
  • the Dip tube has a cross-sectional area that is not smaller than that 0.3 times the free inner cross section of the passage area of the mold. That about this
  • the immersion pouring tube used is similar in cross-section to the mold and therefore has a significantly larger width than thickness.
  • Disadvantage of this configuration of the Immersion tube is the relatively large unsupported area and beyond relatively sharp edges in the area of the narrow sides with regard to the break resistance of the Refractory material with the desired wall thickness.
  • FR 2675411 is also a device for supplying molten steel known, with a lower and upper container, via a connecting line are interconnected. There is one on the lid of the upper container Vacuum device provided with which the melt from the lower container can be lifted and guided into a mold via a diving spout.
  • This system is connected to gas supply elements and serves essentially the Treatment of the steel before it is passed through a dip tube not described any further is led into the mold.
  • the invention has set itself the goal of a device for feeding To create molten metal, especially of liquid steel, in which with simple, cost-effective feeding elements a safe feeding with low kinetic energy the melt is reached in a mold with high operational reliability.
  • the melt is kept under vacuum Intermediate containers via at least three immersion pipes arranged side by side led into a mold.
  • a melt amount to several subsets over several immersion pipes Possibility to directly influence the flow direction and quantity of the partial flows to be taken, at the same time connecting the largest possible entry cross-section of the feed elements into the mold.
  • a large feed cross-section with simultaneous low geodetic height of the liquid level allows a desired, only low kinetic energy and thus minimal penetration depth of the supplied melt into the mold.
  • Another advantage of the device according to the invention is the use of geometrically simple elements, such as the circular shape of the immersion pipes or almost round shapes or rectangular, with very similar length / width ratios.
  • the immersion pipes can be arranged in a line next to each other in a row his.
  • the immersion pipes are in two Lines arranged, with an odd number of tubes in one line and one even number are provided in the other line.
  • the Distance between the immersion pipes in the middle area of the mold Narrow sides can be changed.
  • the diameter of the immersion pipes can also chosen differently from each other and the respective flow conditions be adjusted.
  • the immersion pipes at an angle to the main mold axis adapt according to the desired flow conditions.
  • Another Variation consists in changing the length of the individual immersion pipes. In one variant is the shortest immersion nozzle in the center of the mold. To a completely Another flow occurs when the immersion pipe varies in length be that the longest immersion pouring tube is arranged in the middle of the mold and the shorter near the narrow side walls.
  • immersion pouring tubes are proposed, which one have a rectangular cross-section, the individual immersion pipes being the same Design be positively attached in the intermediate container. Functionally this creates a diving spout with a very large ratio of width to width Thickness, but the individual elements due to their almost square shape have a particularly long service life.
  • actuators are provided in which the flow of the individual immersion pipes can be changed to completely closable In this way, the flow rate can be changed during operation are closed or in the event of defects of individual immersion pipes, each of these is closed without interfering with the entire operation.
  • Figure 1 shows a pan 11, the bottom opening 12 through a plug 14th is lockable.
  • a diving spout 13 is attached, which in a Main chamber 23 of an intermediate container 21 protrudes.
  • the intermediate container 21st also has a higher level than the main chamber Pouring chamber to which a vacuum pump 27 for lifting the liquid melt connected.
  • a vacuum pump 27 for lifting the liquid melt connected.
  • bottom 24 of the pouring chamber 22 there are bottom openings 25 provided, are connected to the immersion pipes 31 to 3n, which in a Protrude mold 41.
  • FIG. 2 shows the pouring chamber 22 on which an odd number of Immersion pouring tubes 31 to 35 are arranged, which protrude into the mold 41.
  • the middle pipe 33 At this in-line immersion pouring pipes 31 to 35 is the middle pipe 33 at longest.
  • FIG. 3 shows an even number of immersion pipes 31 to 34, in which the middle tubes 32, 33 are shortest.
  • FIG. 5 shows an even number of immersion pipes 31 to 34, where pairs 31, 32 and 33, 34 converge the immersion pipes to each other.
  • an odd number of immersion pouring tubes 31 to 33 are arranged in a line L 1 in series, the distance a 1 from one another in the present case being greater than the distance a 2 from the outer immersion pouring tube 31 or 33 to the narrow side 44 of the Mold.
  • an even number of immersion pouring tubes 31 to 34 are arranged in a line L 1 , the individual immersion pouring tubes 31 to 34 having different diameters, in the present case the middle immersion pouring tubes 32, 33 are larger in diameter than the outer immersion pouring tubes 31, 34.
  • an odd number of immersion pipes 31 to 35 is provided, the are arranged in two lines L2, L3, the immersion pipes with the odd Number 31, 33, 35 in line L2 and the immersion pipes with even numbers 32 and 34 are arranged in line L3.
  • the distances between the individual immersion pipes 31 to 35 including the distance to Narrow side 44 of the mold 41 and also the diameter of the immersion pipes 31 to 35 constant.
  • an odd number of immersion pipes 31 to 35 is provided, which have a shape that is different from the circular shape, essentially here oval.
  • the individual immersion pipes 31 to 35 are in a line L1 in series arranged and aligned in the same direction.
  • FIG. 11 shows an arrangement of the immersion pouring tubes 31 to 35 in a bent mold 42 for an arc continuous casting installation.
  • FIG. 12 shows a section of the bottom 24 of the pouring chamber 22, specifically the bottom opening 25, which is surrounded by a bottom stone 26. Between the Bodenstein 26 and a dip tube 31, a quick release 53 is provided, whose slide plate 54 has the bottom opening 25 in an emergency by an actuator 55 closes.
  • FIG. 13 in addition to FIG. 1, with the intermediate container 21 and the Pouring chamber 22 and the main chamber 23 and into the mold 41 protruding immersion pouring pipes 31 to 33 a device for closing the Bottom openings 25 are provided, in the present case by plugs 52 are lockable.
  • the bottom 24 of the pouring chamber 22 is designed as a slot in which immersion pipes 31 to 33 are positively connected to one another.
  • These immersion pouring tubes have shaped elements that support each other, and a nose 36 that corresponds to a bracket 37.
  • the immersion pipes 31 to 33 have essentially one in the present case square cross section, which is kept constant over the entire length.
  • FIG. 15 shows a slotted nozzle in modular design with immersion pipes 31 to 33, which have a rectangular shape in which the narrow side 39 is shorter than that Broad side 38 of the immersion pouring tube.
  • the individual immersion pipes show again Lugs 36 or consoles 37, which have a positive connection with each other enable.
  • the free one diverges in the immersion pouring tubes 31 and 32 Cross-section in the casting direction, while the outer wall is straight and parallel to the main axis I of the mold 41 is arranged. Furthermore, in the present case Walls of the immersion pipes 31 to 33 in the middle area of the slot nozzle are shorter designed as in the vicinity of the mold narrow side 44. In this way, the Possibility of a robust slot nozzle of any width / thickness ratio to design and at the same time influence the currents at any point to take the slot nozzle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Coating With Molten Metal (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (17)

  1. Dispositif pour amener de la matière en fusion métallique, en particulier de l'acier liquide, par l'intermédiaire de tubes de coulée à immersion d'un récipient intermédiaire dans une coquille fixe d'une installation de coulée continue de brames, le récipient intermédiaire (21) étant réalisé comme chambre de coulée (22) munie d'une pompe à vide (27), qui est reliée à une chambre principale (23), dans laquelle la matière en fusion (S) est amenée de l'extérieur,
    caractérisé en ce que, dans le fond (24) de la chambre de coulée (22), sont prévus au moins trois tubes de coulée à immersion (31 - 3n) agencés les uns à côté des autres.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que, dans le cas d'une coquille cintrée (42) d'une installation de coulée continue courbe, les tubes de coulée à immersion (31-3n) sont agencés en série sur une ligne (L1), qui présente à partir de la paroi interne du rayon interne (Ri) de l'installation courbe, une distance (d1), où d1 = 0,2 à 0,4 x d, avec d = distance des faces larges (43) de la coquille.
  3. Dispositif selon la revendication 1,
    caractérisé en ce que les tubes de coulée à immersion (31 - 3n) sont agencés, relativement aux faces larges (43) de la coquille, en deux lignes parallèles (L1, L2).
  4. Dispositif selon la revendication 3,
    caractérisé en ce que, dans le cas d'un nombre impair de tubes de coulée à immersion (31 - 3n), les tubes de coulée à immersion (31 - 3n), désignés à chaque fois par des chiffres pairs ou impairs, sont agencés sur à chaque fois une ligne (L1 ou L2).
  5. Dispositif selon une des revendications précitées,
    caractérisé en ce que les tubes de coulée à immersion (31 - 3n) sont agencés en série sur au moins une ligne (L1 ou L2) parallèlement à la face large (43) de la coquille et, de plus, sont écartés l'un de l'autre et par rapport à la face étroite (44) de la coquille d'une distance (an) à partir de l'axe principal (I) de la coquille, de façon que la distance (an) devient plus petite lorsque le nombre entier (n) devient plus grand.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que la distance actuelle (an+1) de deux tubes de coulée à immersion voisins (31 - 3n) est an+1 = 0,5 à 0,8 x an.
  7. Dispositif selon au moins une des revendications précitées,
    caractérisé en ce que la section transversale de passage (A) des tubes de coulée à immersion (31 - 3n) possède une conformation s'écartant de la forme circulaire, et en ce que la face à chaque fois plus longue (38) est associée aux faces larges (43) de la coquille, les rayons (r) des faces larges par rapport aux faces étroites n'étant pas inférieurs à r = 1/4 d.
  8. Dispositif selon une des revendications 1 à 6,
    caractérisé en ce que les tubes de coulée à immersion (31 - 3n) possèdent une forme de section transversale rectangulaire et, dans la zone du récipient intermédiaire (21), possèdent des éléments de forme (33, 37) qui constituent une liaison par coopération de formes les uns par rapport aux autres et avec le fond (24) de la chambre de coulée (22).
  9. Dispositif selon au moins une des revendications précitées,
    caractérisé en ce qu'au moins un tube de coulée à immersion (31 - 3n) pénètre dans la coquille sous une angle (α) par rapport à l'axe principal (I) de la coquille, où α = 1° à 45°.
  10. Dispositif selon la revendication 9,
    caractérisé en ce qu'au moins deux tubes de coulée à immersion (31, 32) pénètrent dans la coquille (41) sous un angle (α) par rapport à l'axe principal (I) de la coquille, et en ce que ces tubes de coulée à immersion (31, 32) sont agencés dans un plan (E) qui s'étend parallèlement aux faces larges (43) de la coquille.
  11. Dispositif selon au moins une des revendications précitées,
    caractérisé en ce que les tubes de coulée à immersion (31 - 3n) présentent différentes longueurs (I).
  12. Dispositif selon la revendication 11,
    caractérisé en ce que la longueur (I) des tubes de coulée à immersion (31-3n), pour les tubes de coulée à immersion (31 - 3n) agencés plus proches par rapport aux faces étroites (44) de la coquille (41), est plus courte que la longueur (I) de ceux agencés au centre.
  13. Dispositif selon la revendication 7 ou 8,
    caractérisé en ce que les tubes de coulée à immersion (31 - 3n) possèdent différentes sections transversales de passage (A).
  14. Dispositif selon la revendication 13,
    caractérisé en ce que les sections transversales de passage (A1) des tubes de coulée à immersion (31 - 3n), pour les tubes de coulée à immersion (31 - 3n) agencés plus proches par rapport aux faces étroites (44) de la coquille (41), sont plus petites que la section transversale de passage (A2) de ceux agencés au centre.
  15. Dispositif selon une des revendications précitées,
    caractérisé en ce qu'il est prévu des organes de réglage (51) grâce auxquels le débit des tubes de coulée à immersion individuels (31 - 3n) peut être modifié.
  16. Dispositif selon la revendication 15,
    caractérisé en ce que les organes de réglage (51) sont des bouchons (52) grâce auxquels les passages des tubes de coulée à immersion (31 - 3n) peuvent être de resserrés à fermés.
  17. Dispositif selon la revendication 1,
    caractérisé en ce que des fermetures rapides (53) sont prévues, grâce auxquelles les ouvertures de fond individuelles (25) de la chambre de coulée (22) vers les tubes de coulée à immersion (31 - 3n) peuvent être fermées.
EP98966566A 1997-12-19 1998-12-14 Dispositif pour l'amenee de metal en fusion Expired - Lifetime EP1042087B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19758142 1997-12-19
DE19758142A DE19758142A1 (de) 1997-12-19 1997-12-19 Einrichtung zur Zuführung von Metallschmelze
PCT/DE1998/003761 WO1999032248A1 (fr) 1997-12-19 1998-12-14 Dispositif pour l'amenee de metal en fusion

Publications (2)

Publication Number Publication Date
EP1042087A1 EP1042087A1 (fr) 2000-10-11
EP1042087B1 true EP1042087B1 (fr) 2001-11-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98966566A Expired - Lifetime EP1042087B1 (fr) 1997-12-19 1998-12-14 Dispositif pour l'amenee de metal en fusion

Country Status (11)

Country Link
EP (1) EP1042087B1 (fr)
JP (1) JP2001526119A (fr)
KR (1) KR20010033170A (fr)
CN (1) CN1098738C (fr)
AT (1) ATE208671T1 (fr)
AU (1) AU744237B2 (fr)
BR (1) BR9813755A (fr)
CA (1) CA2314076A1 (fr)
DE (2) DE19758142A1 (fr)
ES (1) ES2167963T3 (fr)
WO (1) WO1999032248A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8030082B2 (en) 2006-01-13 2011-10-04 Honeywell International Inc. Liquid-particle analysis of metal materials
WO2022029300A1 (fr) 2020-08-06 2022-02-10 Sms Group Gmbh Dispositif de coulée par induction sous vide permettant la coulée de métal et d'alliages métalliques sous vide et/ou à une atmosphère de gaz de protection, et procédé de changement d'une quenouille et/ou d'un corps de fermeture d'un dispositif de coulée de quenouille sur un dispositif de coulée par induction sous vide

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO320254B1 (no) * 2003-06-30 2005-11-14 Norsk Hydro As Metode og utstyr for kontinuerlig eller semikontinuerlig stoping av metall
ITMI20052470A1 (it) * 2005-12-23 2007-06-24 Danieli Off Mecc Dispositivo di scarico
JP2010125506A (ja) * 2008-11-28 2010-06-10 Kurosaki Harima Corp 上ノズルの配置構造
NO333382B1 (no) * 2009-11-06 2013-05-21 Norsk Hydro As Metallfyllingsarrangement for kontinuerlig stopeutstyr
CN108817339B (zh) * 2018-06-20 2020-04-14 北京科技大学 一种负压连铸装置与负压连铸方法

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Publication number Priority date Publication date Assignee Title
FR1447139A (fr) * 1964-02-03 1966-07-29 Hagenburger Chamotte Ton Procédé et dispositif pour la coulée directe de métaux et leurs diverses applications
CH450640A (de) * 1966-09-23 1968-01-31 Concast Ag Verfahren zur Herstellung von Strängen aus Stahl im Stranggiessverfahren
DE1960283A1 (de) * 1968-12-18 1970-07-09 Pennwalt Corp Vakuumentgasungsvorrichtung fuer die Verwendung beim Stranggiessen von Metallen und Verfahren zum Stranggiessen von schmelzfluessigem Metall,waehrend es einer Vakuumentgasung unterworfen ist
SE356914B (fr) * 1969-04-15 1973-06-12 Voest Ag
DE2325690A1 (de) * 1972-06-06 1973-12-20 Italsider Spa Verfahren und vorrichtung fuer den strangguss von beruhigtem stahl
AT359674B (de) * 1978-08-04 1980-11-25 Voest Alpine Ag Verteilergefaess fuer eine stranggiessanlage
FR2612098B3 (fr) * 1987-03-19 1989-10-27 Danieli Off Mecc Systeme de coulee continue pour l'obtention de brames minces
FR2675411A1 (fr) * 1991-04-16 1992-10-23 Siderurgie Fse Inst Rech Repartiteur pour la coulee continue de metal liquide, notamment de l'acier, entre une poche et une lingotiere.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8030082B2 (en) 2006-01-13 2011-10-04 Honeywell International Inc. Liquid-particle analysis of metal materials
WO2022029300A1 (fr) 2020-08-06 2022-02-10 Sms Group Gmbh Dispositif de coulée par induction sous vide permettant la coulée de métal et d'alliages métalliques sous vide et/ou à une atmosphère de gaz de protection, et procédé de changement d'une quenouille et/ou d'un corps de fermeture d'un dispositif de coulée de quenouille sur un dispositif de coulée par induction sous vide
WO2022029302A1 (fr) 2020-08-06 2022-02-10 Sms Group Gmbh Procédé de régulation d'un dispositif de coulée à quenouille dans un dispositif de coulée par induction sous vide, dispositif de commande automatique de dispositif de coulée à quenouille, et système de charge, de fusion et de coulée de métal et d'alliages métalliques sous vide et/ou atmosphère de gaz protecteur
WO2022029301A1 (fr) 2020-08-06 2022-02-10 Sms Group Gmbh Système pour charger, faire fondre et couler des métaux et des alliages métalliques dans une atmosphère de gaz sous vide et/ou de protection, dispositif de scellement d'un appareil de coulée par induction sous vide et procédé de fusion et de coulée quasi continues de métal dans une atmosphère de gaz sous vide et/ou de protection
WO2022029298A1 (fr) 2020-08-06 2022-02-10 Sms Group Gmbh Busette de coulée ou répartiteur de coulée, ensemble et procédé pour le chauffage et/ou le préchauffage d'une busette de coulée

Also Published As

Publication number Publication date
ES2167963T3 (es) 2002-05-16
CA2314076A1 (fr) 1999-07-01
WO1999032248A1 (fr) 1999-07-01
BR9813755A (pt) 2000-10-03
CN1098738C (zh) 2003-01-15
AU2410299A (en) 1999-07-12
KR20010033170A (ko) 2001-04-25
JP2001526119A (ja) 2001-12-18
AU744237B2 (en) 2002-02-21
CN1282279A (zh) 2001-01-31
EP1042087A1 (fr) 2000-10-11
DE59802177D1 (de) 2001-12-20
ATE208671T1 (de) 2001-11-15
DE19758142A1 (de) 1999-07-01

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