US3552902A - Continuous casting apparatus with movable ladles and tundishes - Google Patents

Continuous casting apparatus with movable ladles and tundishes Download PDF

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Publication number
US3552902A
US3552902A US701408*A US3552902DA US3552902A US 3552902 A US3552902 A US 3552902A US 3552902D A US3552902D A US 3552902DA US 3552902 A US3552902 A US 3552902A
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United States
Prior art keywords
ladle
tundish
casting
tundishes
ladles
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Expired - Lifetime
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US701408*A
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English (en)
Inventor
Rudolf Schoffmann
Anton Kubera
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Voestalpine AG
Voest AG
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Voestalpine AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12—Travelling ladles or similar containers; Cars for ladles
    • B22D41/13—Ladle turrets

Definitions

  • each tundish when in its casting position, can receive the outputs of ladles carried by either of the carrier arms.
  • the ladle on the other carrier arm is being replaced with a full ladle and moved into pouring position over the tundish, thereby enabling continuous casting. Provisions are made for ready cleaning and replacement of the tundishes.
  • the invention relates to a plant for continuous casting of metals comprising two carrier arms pivotable around a vertical axis and each adapted to carry a casting ladle, and at least one tundish.
  • a pre-requisite is that the exchange of a discharged casting ladle for a charged one is carried out as quickly as possible and that the liquid metal contained in the tundish of the casting plant sufiices for bridging the interval caused by the exchange of casting ladles.
  • a carrying device which comprises a column arranged outside the operating range of the plant and a beam rotatably mounted thereon, the two opposed ends of said beam being designed as carrying platforms, each of them adapted to carry one casting ladle.
  • the platform carrying the charged casting ladle is respectively moved to the casting position and the opposite platform to the preparatory position. While the ladle in the casting position is discharged, the empty ladle is lifted olf the opposite platform and replaced by a charged one, whereupon the process is repeated.
  • the working ability of the known plant depends upon the provision that no disorders occur particularly with regard to the tundish. When it becomes necessary to remove slag from the tundish, or when its lining is worn, operation has to be interrupted. Thus, a completely continuous casting is not possible with that plant. Other difiiculties may arise because the carrier arms of the carrying beam cannot be moved independently. It is not possible to move a ladle out of the casting position, while preparation on the opposite end of the carrying beam is not yet finished, and vice versa.
  • the present invention aims at avoiding these disadvantages and ditficulties and has as its object to provide a continuous casting plant which permits of a freer variation and combination of the processes of preparing and discharging the ladle and the tundish or tundishes than hitherto possible, and in which any troubles which may occur can be easily overcome without necessitating an interruption in the continuous operation of the whole plant.
  • a further object of the invention is to allow the use of two ladles in the casting operation and to enable a rapid exchange of ladles.
  • the plant of the invention which comprises two carrier arms pivotable around a vertical axis and each adapted to carry a casting ladle, and at least one tundish, is characterised in that the two carrier arms are independently pivotable from a starting position, the delivery position, in opposite directions to two operating positions and that, if desired, also the tundishes pertaining to the operating positions of the casting ladles are pivotable from a resting position to the casting position.
  • the delivery position and the two operating positions are preferably spaced around a circle, in the center of which the perpendicular pivot axis for the carrier arms is arranged, the pivoting range of each carrier arm extending over both operating positions, so that the latter are traversable by both ladles.
  • tundishes are tiltable, that they are liftable and lowerable, and displaceable in longitudinal direction.
  • FIG. 1 shows an elevational view of the carrying device according to the invention
  • FIG. 2 a ground-plan
  • FIGS. 3 to 8 illustrate the function of the plant, namely of the carrying device and the tundishes.
  • FIG. 3 is an overall plan
  • FIG. 4 an elevation as viewed along line IV-IV of FIG. 3
  • FIG. 5 an elevational view along the line VV of FIG. 3.
  • FIGS. 6 and 7 show lateral views of a tundish in two different operating positions
  • FIG. 8 is an elevational view along line VIIIVIII of FIG. 6.
  • FIGS. 1 and 2 show the main parts of the carrying device according to the invention, i.e. a central column 1, on which carrier arms 2 and 3 are mounted to be independently pivotable.
  • each carrier arm is fork-shaped and holds a casting ladle 4 and 5, respectively.
  • the carrier arms are pivotable through an angle (in the embodiment shown this angle is somewhat greater than 240), namely carrier arm 2 from position A through position B to position C and back, as demonstrated by arrow u, and carrier arm 3 from position A through position C to position B and back, as demonstrated by arrow v.
  • Position A is the delivery position
  • positions B and C are operating positions.
  • FIG. 3 wherein the described parts of the plant have the same reference numbers, shows further characteristics of the invention.
  • Tundishes 6 and 7, respectively, are assigned to the operating positions B and C, said tundishes being pivotable around stationary axes 8 and 9 by means of swivel drives 10 and 11, which may be operated hydraulically or by any other kind of mechanism.
  • the pivoting range of the tundishes is indicated by arrows at and y; it extends respectively from a resting position R to the casting position G situated opposite to the delivery posiion A of the ladles.
  • the ladle 5 is shown on carrier arm 3 in the operating position C, while arm 2 with ladle 4 is in the delivery position A.
  • Tundish 7 is pivoted to the casting position, its outlet v12 resting above casting mould 13.
  • FIG. 4 shows draining channels 14 and 15 leading to the emergency ladle 16 (FIG. 3). They serve for draining otf the liquid metal, when an emergency arises and when there is danger of the tundish 7 becoming overcharged.
  • FIG. 5 shows the tundish in a position remote from the casting position. As evident, it is displaceable in the longitudinal direction, i.e. forward and backward, by
  • the tundishes are liftable and lowerable by being mounted on a vertically displaceable hollow shaft or sleeve 24- surrouncling the pivot axis of the tundishes. Owing to the vertical displaceability of the tundish, access to the mould for removal of slag is considerably facilitated. Lowering the tundish bears the further advantage that during casting the outlet of the tundish can be placed immediately above the mould, whereby the kinetic energy of the pouring metal stream is diminished.
  • FIG. moreover shows a tilting device, comprising flexibly connected arms 18 and 19, one end of arm 18, which is provided with a roller 20, engaging with a guide means 21 on the underside of tundish 6.
  • the tundish 6 can be tilted, in the completely advanced and lifted position, to the position indicated by broken lines, in which position slag falls into the slag pot 22.
  • the tilting axle of the tundish is designated by 23.
  • the tundish is shown in position R of FIG. 3, namely in lifted position.
  • its lid 25 overlies the rail-shaped supporting means 26 and 27; when the tundish is then lowered, as shown in FIG. 7, the lid is held by the supporting means 26 and 27, and the tundish can be pivoted to the tilting position K for removal of slag and for replacement by another tundish.
  • the plant of the invention makes different ways of completely uninterrupted operation of a continuous casting plant possible, while leaving extensive freedom in the combination of different process steps and at the same time ensuring a high operational security.
  • One of the possible working methods consists in that several ladles are successively teemed through the same tundish. In detail, this is carried out as follows: One tundish is in the casting position, the other in the tilting position K or resting position R. This situation is shown in FIG. 3.
  • the carrier arm 3 with casting ladle 5 has been pivoted over the tundish 7, and ladle 5 is discharged.
  • Carrier arm 2 is pivoted to the delivery position A and, some time before casting ladle 5 is empty, a charged casting ladle 4 is deposited on the carrier arm.
  • the carrier arm 2 Before teeming of ladle 5 is finished, the carrier arm 2 can be turned clockwise to approach carrier arm 3 up to a certain distance. As soon as casting ladle 5 is completely discharged, its plug 28 is closed, and the carrier arm 3 is moved to the unoccupied delivery position, where the empty casting ladle is lifted off by means of an overhead crane or the like. Ladle 4, which is in readiness upon carrier arm 2, has in the meantime been moved to operating position C, so that it is positioned above the tundish 7. Its plug 29 is then opened and discharging of ladle 4 begins. The tundish 7 must have a sufficient holding capacity for enabling maintenance of the continuous operation, i.e. the discharging time of the tundish must be longer than the time required for pivoting the ladies in and out of the operating positions. While casting ladle 4 is emptied, another charged ladle is deposited in the delivery position and the cycle starts afresh.
  • the described working method can be maintained for such a time as the ceramic parts of the tundish, i.e. the lining, the plugs and outlets, can bear the strain.
  • operation of the plant according to the invention may be modified by teeming several ladles successively into the same tundishe.g. in operating position C, as previously described-and subsequently changing over to the second tundish.
  • tundish 7 and the ladle 5, which is in the operating position C are completely discharged, tundish 6 is pivoted to the casting position G and the next charged ladle is moved from the delivery position to the operating position B.
  • a third possibility for operating the plant of the invention is that several ladles are alternately teemed first through the one and then through the other tundish.
  • tundish 7 e.g., is in casting position and ladle 5 is being discharged (FIG. 3).
  • tundish 6 is pivoted to the casting position, and an exchange of ladles between positions A and B is carried out.
  • operation is again transferred to the tundish 7 and to operating position C, followed by an exchange of ladles between delivery position A and operating position C.
  • a newly prepared tundish must, after each exchange, be placed upon the pivoting device.
  • a tundish When a tundish is taken out of operation, it is first movedin lifted positionto resting position R, where the lid is removed in the manner described in connection with FIGS. 6 to 8; the tundish is then pivoted to the tilting position K and-in lifted and advanced positionis tilted around tilting axle 23 for emptying out slag. The tundish is then tilted back, lifted off by hoisting means, and a newly prepared tundish is deposited. In lowered position, this tundish is pivoted to position R, then it is lifted, whereby its lid is taken up by the supporting means 26 and 27. The tundish is now ready for being again pivoted to the casting position.
  • a disorder in the plant occurs, e.g.
  • draining channels 14 and 15 When there are leaky plugs in the ladle or the tundish, these vessels can be discharged by way of draining channels 14 and 15 into the emergency ladle 16, as previously described.
  • the draining channels also serve for receiving the bottom cold steel from the tundishes.
  • draining channel 15 is suitably movable. It is pushed under the outlet of the tundish, until a faultless pouring stream has formed, then it is pulled back and the usual discharging into the mould can take place.
  • An apparatus for continuous casting of a metal in a casting mold comprising a central vertical arbor, two carrier arms of equal length pivotably mounted on said arbor and independently movable in opposite directions from a common starting position to two operating positions spaced along a path concentric with said arbor, a plurality of casting ladles, each adapted to be supported by one of said carrier arms, two vertical members, spaced from each other and from said central vertical arbor, two tundishes each having an outlet and pivotably mounted on respective ones of said vertical members, said tundishes each being pivotable from a resting position to a casting position, said outlet being located above said casting mold when the tundish is in said casting position, and means for lifting and lowering said tundishes.
  • each of said tundishes is tiltable in a position remote from said casting position by a stationary tilting device disposed at said remote position, each of said tundishes including guide means on the underside thereof and said stationary tilting device comprising flexibly connected arms, one of said arms being provided on one end with a roller engaging with said guide means.
  • tundishes FOREIGN PATENTS are displaceable in the longitudinal direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
US701408*A 1967-02-06 1968-01-29 Continuous casting apparatus with movable ladles and tundishes Expired - Lifetime US3552902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT108467A AT267099B (de) 1967-02-06 1967-02-06 Anlage zum kontinuierlichen Stranggießen von Metallen

Publications (1)

Publication Number Publication Date
US3552902A true US3552902A (en) 1971-01-05

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Application Number Title Priority Date Filing Date
US701408*A Expired - Lifetime US3552902A (en) 1967-02-06 1968-01-29 Continuous casting apparatus with movable ladles and tundishes

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US (1) US3552902A (fr)
JP (1) JPS5220419B1 (fr)
AT (1) AT267099B (fr)
BE (1) BE710314A (fr)
CH (1) CH467122A (fr)
CS (1) CS163720B2 (fr)
DE (1) DE1608094B1 (fr)
ES (1) ES349850A1 (fr)
FR (1) FR1551721A (fr)
GB (1) GB1212918A (fr)
SE (1) SE321773B (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693960A (en) * 1970-06-08 1972-09-26 Schloemann Ag Turret for casting ladles
US3773228A (en) * 1969-12-17 1973-11-20 Demag Ag Turret device for continuous casting installations
US3817318A (en) * 1971-07-01 1974-06-18 Wean United Inc Vessel handling apparatus for continuous casting machine
US3866665A (en) * 1974-01-02 1975-02-18 Allis Chalmers Twin strand continuous casting apparatus with a tundish load balancing vessel
US3894576A (en) * 1974-01-02 1975-07-15 Allis Chalmers Continuous casting apparatus with movable ladles and tundishes
US3924517A (en) * 1973-04-27 1975-12-09 Voest Ag Device for lifting and pivoting a metallurgical vessel
US3974874A (en) * 1975-11-24 1976-08-17 Concast Incorporated Continuous casting plant
US4000840A (en) * 1974-08-30 1977-01-04 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Tundish car and rotary support for positioning tundish
US4121742A (en) * 1976-03-26 1978-10-24 Vereinigte Osterreichische Eisen-Und Stahlwerke - Alpine Montan Aktiengesellschaft Ladle-rotating turret arrangement
US4168739A (en) * 1977-12-20 1979-09-25 Inductotherm Corp. Rotary pouring system
US4371100A (en) * 1980-03-05 1983-02-01 Voest-Alpine Aktiengesellschaft Adjustable carrying-tower arrangement for metallurgical vessels
WO2014188435A1 (fr) 2013-05-23 2014-11-27 Davidshield L.I.A. (2000) Ltd. Interactions de remboursement automatisées
CN116117093A (zh) * 2023-03-02 2023-05-16 广东中南钢铁股份有限公司 连铸系统及连铸事故应急控制方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791944R (fr) * 1971-11-27 1973-03-16 Schloemann Ag Tourelle tournante pour poches de
FR2421699A1 (fr) * 1978-04-07 1979-11-02 Clesid Sa Pivoteur de poches pour la coulee continue de metal
FR2485962A1 (fr) * 1980-07-03 1982-01-08 Meccaniche Ind Costruzioni Tourelle tournante de coulee en continu a bras independants et entierement soulevable
FR2486839A1 (fr) * 1980-07-18 1982-01-22 Clesid Sa Dispositif d'alimentation en acier liquide pour installation polyvalente de coulee continue
DE3038876C2 (de) * 1980-10-15 1985-02-21 Benteler-Werke AG, 4790 Paderborn Pfannendrehturm
AT376592B (de) * 1983-05-09 1984-12-10 Voest Alpine Ag Tragturm fuer giesspfannen bei einer stranggiessanlage
DE3671850D1 (de) * 1985-10-04 1990-07-19 Danieli Off Mecc Vorrichtung zum handhaben von gusspfannen.
IT1201815B (it) * 1986-09-25 1989-02-02 Danieli Off Mecc Impianto di trasformazione di una carica metallica in semiprodotti e procedimento di fusione e colaggio connesso
DE102004034704B3 (de) * 2004-07-17 2006-01-26 Lech-Stahlwerke Gmbh Vorrichtung zum Wechseln der Pfannen bei Stranggießanlagen
JP6466231B2 (ja) * 2015-04-08 2019-02-06 スチールプランテック株式会社 連続鋳造装置及びその操業方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT231630B (de) * 1962-05-18 1964-02-10 Concast Ag Verfahren und Vorrichtung zum kontinuierlichen Stranggießen von Metallen
DE1220562B (de) * 1962-10-20 1966-07-07 Schloemann Ag Tragvorrichtung fuer die Giesspfannen bei Stranggiessanlagen
DE1508781A1 (de) * 1965-08-25 1969-11-20 Bliss E W Co Stranggiessverfahren und Stranggussanlage
FR1451648A (fr) * 1965-10-12 1966-01-07 Benteler Geb Paderwerk Installation de coulée continue de métaux

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773228A (en) * 1969-12-17 1973-11-20 Demag Ag Turret device for continuous casting installations
US3693960A (en) * 1970-06-08 1972-09-26 Schloemann Ag Turret for casting ladles
US3817318A (en) * 1971-07-01 1974-06-18 Wean United Inc Vessel handling apparatus for continuous casting machine
US3924517A (en) * 1973-04-27 1975-12-09 Voest Ag Device for lifting and pivoting a metallurgical vessel
US3866665A (en) * 1974-01-02 1975-02-18 Allis Chalmers Twin strand continuous casting apparatus with a tundish load balancing vessel
US3894576A (en) * 1974-01-02 1975-07-15 Allis Chalmers Continuous casting apparatus with movable ladles and tundishes
US4000840A (en) * 1974-08-30 1977-01-04 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Tundish car and rotary support for positioning tundish
US3974874A (en) * 1975-11-24 1976-08-17 Concast Incorporated Continuous casting plant
US4121742A (en) * 1976-03-26 1978-10-24 Vereinigte Osterreichische Eisen-Und Stahlwerke - Alpine Montan Aktiengesellschaft Ladle-rotating turret arrangement
US4168739A (en) * 1977-12-20 1979-09-25 Inductotherm Corp. Rotary pouring system
US4371100A (en) * 1980-03-05 1983-02-01 Voest-Alpine Aktiengesellschaft Adjustable carrying-tower arrangement for metallurgical vessels
WO2014188435A1 (fr) 2013-05-23 2014-11-27 Davidshield L.I.A. (2000) Ltd. Interactions de remboursement automatisées
CN116117093A (zh) * 2023-03-02 2023-05-16 广东中南钢铁股份有限公司 连铸系统及连铸事故应急控制方法

Also Published As

Publication number Publication date
GB1212918A (en) 1970-11-18
FR1551721A (fr) 1968-12-27
CH467122A (de) 1969-01-15
JPS5220419B1 (fr) 1977-06-03
SE321773B (fr) 1970-03-16
ES349850A1 (es) 1969-04-16
BE710314A (fr) 1968-06-17
AT267099B (de) 1968-12-10
DE1608094B1 (de) 1972-03-23
CS163720B2 (fr) 1975-11-07

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