EP0734801B1 - Dispositif pour régler une alimentation de métal avec un tampon - Google Patents

Dispositif pour régler une alimentation de métal avec un tampon Download PDF

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Publication number
EP0734801B1
EP0734801B1 EP96104202A EP96104202A EP0734801B1 EP 0734801 B1 EP0734801 B1 EP 0734801B1 EP 96104202 A EP96104202 A EP 96104202A EP 96104202 A EP96104202 A EP 96104202A EP 0734801 B1 EP0734801 B1 EP 0734801B1
Authority
EP
European Patent Office
Prior art keywords
stopper
drive
lifting rod
guide
casting
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
EP96104202A
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German (de)
English (en)
Other versions
EP0734801B2 (fr
EP0734801A1 (fr
Inventor
Markus Schmid
Hans Gloor
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.)
Concast Standard AG
Original Assignee
Concast Standard 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
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Application filed by Concast Standard AG filed Critical Concast Standard AG
Publication of EP0734801A1 publication Critical patent/EP0734801A1/fr
Publication of EP0734801B1 publication Critical patent/EP0734801B1/fr
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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/161—Controlling or regulating processes or operations for automatic starting the casting process
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • 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
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/20—Stopper-rod operating equipment

Definitions

  • the invention relates to a device for regulating a metal inflow from a Pouring vessel into a continuous casting mold according to the characteristics of the generic term of claim 1.
  • stopper control devices When casting metals, especially steel, stopper control devices are used has long been known for pans and continuous vessels.
  • DE - 1 458 076 A An example of a control device according to the preamble of claim 1 is disclosed in DE - 1 458 076 A.
  • the position of a stopper a ladle can be changed controlled by an electromechanical Drive, the control of which is operated manually.
  • DE - 1 180 096 B proposes a compact design for the actuating device for a stopper of a ladle with manually operated, electromechanical Plug drive before.
  • the actuator includes a plug guide rod, which is formed by the drive itself.
  • the invention has for its object to provide a stopper control device which overcomes the aforementioned disadvantages and in particular leaves the classic stopper actuation concept, which provides for manual intervention on a stopper regulating lever at the start or in emergency situations.
  • the plug control should also have a significantly higher regulation accuracy and regulation speed in order to further improve the strand quality. Also, for all malfunctions that occur in practice, such as breakthroughs, plug wear and nozzle washing, Al 2 O 3 deposits, etc., predetermined sequence programs should be able to be used automatically or via remote control.
  • the new plug actuation concept is intended to save personnel costs during commissioning and service, but also during the casting operation itself.
  • each stopper movement is a computer or remote-controlled electric drive. Impending malfunctions are recognized in good time by recording appropriate parameters and corrected accordingly via predetermined programs. Through early detection strand quality, in particular the Strand surface to be improved.
  • the omission of all hydraulic drive and Control elements simplify both the commissioning of the system and the Maintenance of such stopper control devices. Foundry staff can also continue saved and security increased. Waiving the equipment with An articulated lever also closes all caused by the articulated lever Moments of inertia.
  • the plugs are usually opposite the pouring nozzle for the outflow control can be raised and lowered. But plugs are also known, which are caused by a rotary movement control the flow control. According to an embodiment, the Guide device for a lifting and lowering plug from a lifting rod and a tour.
  • the device for regulating the metal flow can be attached to any pouring vessel programmed or remotely controlled casting operations must be performed.
  • the device can be used to save personnel on a continuous caster
  • particularly effective for intermediate vessels can be used for multiple line systems.
  • Such intermediate vessels have up to eight pouring nozzles, each with a stopper regulation.
  • the module box it is possible to use a cooling system known in the prior art to provide the module box.
  • the air pressure can be built up via an air circulation system, the air the module box, the lifting rod and a plug support arm as the cooling medium flows through.
  • An additional protection against heating of the module box results when mounting between the wall of the casting vessel and the module box an open air gap is arranged.
  • Accurate flow control requires high stroke accuracy, high Speed of movement of the lifting rod and a minimum of moving parts between the lifting rod and the servo motor.
  • the drive axis of the Motors and the lifting rod together with their guide parallel to each other in the module box to arrange and the rotary motion of the motor directly on a ball screw and from this in turn directly to the lifting rod.
  • the Control accuracy can be further increased if the vertical guidance of the lifting rod consists of a ball bearing longitudinal guide and its length 50 - 80% the intermediate vessel height (bottom lid cover).
  • a handwheel can be coupled to the spindle of the ball screw drive.
  • accumulators, spring assemblies etc. which are pressurized in the prior art. known. Such devices cause additional investment and maintenance costs and are poorly suited for a module solution.
  • a signal generator in the power supply for rapid detection of a power failure and in the electrical Drive supply capacitors to arrange their capacity for a program-controlled Emergency closing movement of the plug is sufficient in the event of a power failure.
  • the pouring nozzle with an emergency slide Assigned lock stone.
  • a casting vessel 1 and 2 is a casting vessel as an intermediate vessel 2 within one Steel continuous casting system shown.
  • a continuous casting mold 3 provides a casting mold
  • a pouring nozzle 4 interacts with a liftable and lowerable stopper 5 and regulates the flow of steel from the tundish 2 into the continuous casting mold 3.
  • the inflow of steel into the mold 3 is determined according to a predetermined program, e.g. one Angie program, and / or controlled by a bath level measuring device 7.
  • the refractory stopper 5 surrounds the stopper rod 8, which has an arm 9 is connected to a lifting rod 10.
  • the lifting rod 10 is in a vertical guide 12 arranged, which in this example consists of a ball bearing longitudinal guide.
  • a computer-controlled electromechanical drive in the form of a servo motor 13 is together with the lifting rod 10 and its vertical guide 12 in one Module box 15 arranged.
  • the module box 15 is on the intermediate vessel 2 Clamping elements 16 fastened interchangeably. To ensure easy replacement, 15 suspension devices 17 are provided on the module box.
  • the Clamping elements 16 are designed as quick-release and centering elements. Between the wall 19 of the intermediate vessel 2 and the module box 15 is an open one Air gap 20 arranged.
  • the module box 15 is closed in a dust-tight manner by a cover 21 and via a Compressed air connection 22, an air overpressure can be built up.
  • the air pressure is part of an air circulation system 23, which is represented by an arrow.
  • the air circulation system 23 in the module box serves as a cooling medium for the engine 13, a ball screw drive 27, 28, the lifting rod 10 and the plug support arm 9.
  • a drive axis 25 of the motor 13 is via a flexible, angularly rigid coupling 26 connected to the ball screw 27.
  • the spindle 27 forms together with a nut 28 a ball screw, the nut 28 and the lifting rod 10 are rigidly connected to one another via a bridge 29. Over the bridge 29 the Transfer the nut 28 directly to the lifting rod 10.
  • the drive axle 25 with the spindle 27 are parallel and at a short distance from the lifting rod 10 in the module box 15 arranged.
  • a handwheel 30 is arranged, which with the Spindle 27 can be coupled and allows a height adjustment of the lifting rod 10 if the electrical connection cable to the motor is unplugged.
  • the module box 15 is again electrically connected to the control cabinet 34 and the handwheel 30 from the spindle uncoupled.
  • a signal generator 33 is connected in the power supply 32 for the motor 13, which detects a power failure and reports a computer in the control cabinet 34. Furthermore, capacitors are arranged in the electrical drive supply, their capacity for a program-controlled emergency closing movement of the stopper sufficient in the event of a power failure.
  • a stopper control device is also subject to interference from the refractory side such as breaking off refractory parts on the stopper, breaking or wash out the pouring nozzle etc.
  • the refractory side such as breaking off refractory parts on the stopper, breaking or wash out the pouring nozzle etc.
  • To prevent an emergency situation regardless of the stopper control is a with a piston cylinder unit controlled emergency slide 36 on the intermediate vessel bottom appropriate. With a locking block of the emergency slide 36, the outflow nozzle can 4 closed and, if necessary, a pouring tube can be separated at the same time.
  • the medium for actuating the emergency slide is supplied by an accumulator.
  • Intermediate vessels for continuous casting plants are provided with up to eight stoppers, whereby each stopper has its own module box and its own control system is. If the intermediate vessel from the preheating position to the pouring position over the Chill molds or placed in a filling position close to the pouring position, so is before Start of pouring of the plug drive motor by means of electrical plug connections 37 connected to the control cabinet 34. After this connection the stopper movement From the start of casting only controlled by electrical signals.
  • All transmission means known in the prior art such as wire, light guide, radio, infrared etc. are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Casting Devices For Molds (AREA)
  • Continuous Casting (AREA)

Claims (14)

  1. Dispositif pour réguler une alimentation de métal d'un récipient de coulée (2) dans une coquille de coulée continue (3), avec un bouchon (5) qui coopère avec une buse de coulée (4) avec un caisson modulaire (15) fixé de manière interchangeable au récipient de coulée (2) avec des éléments de montage (16), dans lequel sont disposés un dispositif de guidage (10, 12) et un dispositif d'entraínement électromécanique (13) pour le bouchon (5), et avec un dispositif de commande (34) qui peut être relié au dispositif d'entraínement (13) au moyen de connexions électriques à fiches (37), caractérisé en ce qu'il est prévu un dispositif de commande par ordinateur (34) pour le dispositif d'entraínement (13) pour commander le mouvement du bouchon selon un programme prédéterminé et/ou au moyen d'un dispositif de mesure de niveau de bain (16) et une alimentation en courant (32) pour le dispositif d'entraínement (13) avec un dispositif (33, 34) pour commander un mouvement de fermeture d'urgence du bouchon (5) en cas de panne de courant.
  2. Dispositif selon la revendication 1, caractérisé en ce que le caisson modulaire (15) peut être fermé de manière étanche aux poussières et peut être soumis à une surpression d'air.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le dispositif de guidage pour un bouchon capable de monter et de descendre consiste en une tige (10) et en un guide (12).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le récipient de coulée consiste en un récipient intermédiaire (2) pour une installation à plusieurs lignes et est équipé de 2 à 8 caissons modulaires (15).
  5. Dispositif selon la revendication 2, caractérisé en ce que la surpression d'air est établie par l'intermédiaire d'un système de circulation d'air (23) et l'air traverse sous forme d'agent réfrigérant le caisson modulaire (15), la tige (10) et une console de bouchon (9).
  6. Dispositif selon l'une des revendications 2 à 5, caractérisé en ce qu'un espace ouvert (20) est disposé entre la paroi (19) du récipient de coulée (2) et le caisson modulaire (15).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce qu'il est prévu sur le caisson modulaire (15) un dispositif d'accrochage (17) sur le récipient de coulée (2) et des éléments de montage rapide (16) pour une fixation rigide.
  8. Dispositif selon l'une des revendications 2 à 7, caractérisé en ce que l'axe d'entraínement (25) du dispositif d'entraínement (13) et la tige (10) ainsi que son guide (12) sont disposés parallèlement entre eux dans le caisson modulaire (15) et le dispositif d'entraínement (13) transmet le mouvement de rotation directement à une vis à billes (27, 28) et de celle-ci un mouvement de course directement à la tige (10).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'un volant à main (30) peut être couplé à une broche filetée (27) de la vis à billes et découplé de celle-ci.
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que le dispositif pour commander un mouvement de fermeture d'urgence du bouchon (5) comprend un poste transmetteur de signaux (33) pour une détection rapide d'une panne de courant.
  11. Dispositif selon la revendication 10, caractérisé en ce que le dispositif pour commander un mouvement de fermeture d'urgence du bouchon (5) comprend des condensateurs dont la capacité est suffisante pour un mouvement de fermeture d'urgence du bouchon (5) commandé par un programme en cas de panne de courant.
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que le guide vertical (12) de la tige (10) consiste en un guide longitudinal monté sur roulement à billes et sa longueur L est égale à 50 à 80%, de préférence 70 à 80 %, de la hauteur (39) (fond-support de couvercle) du récipient intermédiaire.
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce qu'un coulisseau d'urgence (36) avec un obturateur est associé à la buse de coulée (4).
  14. Dispositif selon la revendication 13, caractérisé en ce que le coulisseau d'urgence est muni d'une unité à piston et cylindre et d'un accumulateur pour l'agent d'actionnement.
EP96104202A 1995-03-28 1996-03-16 Dispositif pour régler une alimentation de métal avec un tampon Expired - Lifetime EP0734801B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH00870/95A CH689728A5 (de) 1995-03-28 1995-03-28 Vorrichtung zum Regeln eines Zuflusses einer Metallschmelze mittels eines Stopfens.
CH870/95 1995-03-28
CH87095 1995-03-28

Publications (3)

Publication Number Publication Date
EP0734801A1 EP0734801A1 (fr) 1996-10-02
EP0734801B1 true EP0734801B1 (fr) 1999-07-28
EP0734801B2 EP0734801B2 (fr) 2003-02-05

Family

ID=4197097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96104202A Expired - Lifetime EP0734801B2 (fr) 1995-03-28 1996-03-16 Dispositif pour régler une alimentation de métal avec un tampon

Country Status (6)

Country Link
US (1) US5674426A (fr)
EP (1) EP0734801B2 (fr)
CA (1) CA2172335C (fr)
CH (1) CH689728A5 (fr)
DE (1) DE59602511D1 (fr)
ES (1) ES2137580T5 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446704B1 (en) * 1997-06-27 2002-09-10 Richard J. Collins Continuous casting mold plug activation and bleedout detection system
DE19843033B4 (de) * 1998-09-19 2017-11-09 Sms Group Gmbh Durchbrucherkennungsverfahren für eine Stranggießkokille
FR2848131B1 (fr) * 2002-12-04 2006-01-06 Realisations Tech Sert Soc Et Ensemble de commande d'un obturateur appartenant a une installation de coulee continue, et installation de coulee continue correspondante
US7296613B2 (en) 2003-06-13 2007-11-20 Wagstaff, Inc. Mold table sensing and automation system
ITMI20042301A1 (it) * 2004-11-30 2005-02-28 Danieli Off Mecc Dispositivo di comando di un'asta-tampone
DE102005024924B8 (de) * 2005-05-23 2007-10-25 Strikowestofen Gmbh Schmelz- oder Warmhalteofen
US20070120707A1 (en) * 2005-11-29 2007-05-31 Rv Insite, Inc. Method for positioning recreational vehicles and portable position sensor and alert system for recreational vehicles and other vehicles
US8210402B2 (en) * 2009-02-09 2012-07-03 Ajf, Inc. Slag control shape device with L-shape loading bracket
US8580186B2 (en) * 2010-04-19 2013-11-12 Novelis Inc. Flow control apparatus for molten metal
EP2574414A1 (fr) * 2011-09-30 2013-04-03 Siemens VAI Metals Technologies GmbH Entraînement de bouchon électromagnétique
AT518476B1 (de) * 2016-04-12 2020-02-15 Primetals Technologies Austria GmbH Verfahren zum Starten und Stoppen einer mehrsträngigen Stranggießmaschine, Gemeinsamer Stopfenantrieb und Mehrsträngige Stranggießmaschine
EP3782748A1 (fr) * 2019-08-20 2021-02-24 Refractory Intellectual Property GmbH & Co. KG Dispositif d'entraînement pour une fermeture de type quenouille dans un récipient métallurgique
AT17334U1 (de) * 2020-08-26 2021-12-15 Sheffield Hi Tech Refractories Germany Gmbh Vorrichtung zum Verschließen eines Gießrohres eines metallurgischen Gefäßes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139241B (de) * 1960-08-23 1962-11-08 Juenkerather Maschbau Gmbh Betaetigungsvorrichtung fuer den Stopfen einer Giesspfanne
DE1180096B (de) * 1962-03-31 1964-10-22 Juenkerather Maschbau Gmbh Betaetigungsvorrichtung fuer den Stopfen einer Giesspfanne
DE1458076A1 (de) * 1963-03-25 1968-11-21 Korthaus Helmut Einrichtung zur elektromotorischen Steuerung des Verschlussstopfens einer Giesspfanne
DE8510920U1 (de) * 1985-04-13 1986-08-07 Ruhrgas Ag, 4300 Essen Notschieber für Verteilerrinnen von Stranggießanlagen
EP0296443A3 (fr) * 1987-06-22 1989-11-08 Zimmermann & Jansen GmbH Procédé et dispositif pour le remplissage automatique d'une lingotière de coulée continue
JPH0299255A (ja) † 1988-05-16 1990-04-11 Nippon Steel Corp 薄肉鋼板用の連続鋳造機の湯面制御装置
CH682376A5 (de) * 1990-02-28 1993-09-15 Stopinc Ag Verfahren zum automatischen Angiessen von einer Stranggiessanlage.
JPH04270049A (ja) * 1991-02-25 1992-09-25 Sumitomo Metal Ind Ltd 連続鋳造機のストッパ装置及び湯面レべル制御装置
US5312090A (en) * 1992-12-14 1994-05-17 Cmi International Apparatus and method for controlling a stopper rod of a bottom pouring vessel

Also Published As

Publication number Publication date
DE59602511D1 (de) 1999-09-02
CA2172335C (fr) 2001-06-12
ES2137580T3 (es) 1999-12-16
ES2137580T5 (es) 2003-08-01
EP0734801B2 (fr) 2003-02-05
US5674426A (en) 1997-10-07
EP0734801A1 (fr) 1996-10-02
CA2172335A1 (fr) 1996-09-29
CH689728A5 (de) 1999-09-30

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