EP0734801A1 - 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
EP0734801A1
EP0734801A1 EP96104202A EP96104202A EP0734801A1 EP 0734801 A1 EP0734801 A1 EP 0734801A1 EP 96104202 A EP96104202 A EP 96104202A EP 96104202 A EP96104202 A EP 96104202A EP 0734801 A1 EP0734801 A1 EP 0734801A1
Authority
EP
European Patent Office
Prior art keywords
casting
module box
plug
lifting rod
stopper
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
EP96104202A
Other languages
German (de)
English (en)
Other versions
EP0734801B1 (fr
EP0734801B2 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4197097&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0734801(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
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
Application granted granted Critical
Publication of EP0734801B2 publication Critical patent/EP0734801B2/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
    • B22D11/16—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 casting vessel into a casting mold according to the features of the preamble of claim 1.
  • stopper control devices for pans and continuous vessels have been known for a long time.
  • new requirements have arisen for regulating the flow of metal in continuous casting molds.
  • the exact adherence to a predetermined bath level, automatic pouring, quick reaction in the event of breakthroughs etc. are tasks for which many proposed solutions have been developed in recent years.
  • a device for regulating a metal inflow from a casting vessel into a continuous casting mold for a steel strand is known.
  • a plug that can be raised and lowered works together with a pouring nozzle.
  • the stroke of the stopper can be done on the one hand by means of a drive, e.g. a piston-cylinder unit, and, on the other hand, can be operated manually in an emergency via a joint lever.
  • the metal inflow can be controlled according to a predetermined program by means of a computer and / or by means of a bath level measuring device.
  • 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.
  • the plugs can usually be raised and lowered in relation to the spout nozzle.
  • plugs are also known which control the outflow regulation by means of a rotary movement.
  • the Guide device for a lifting and lowering stopper consisting of a lifting rod and a guide.
  • the device for regulating the metal flow can be attached to any casting vessel that has to carry out programmed or remote-controlled casting processes.
  • the device according to one embodiment can be used particularly effectively in intermediate vessels for multi-strand systems.
  • Such intermediate vessels have up to eight pouring nozzles, each with a stopper regulation.
  • the air overpressure can advantageously be built up via an air circulation system, the air flowing through the module box, the lifting rod and a plug support arm as the cooling medium. Additional protection against heating of the module box is obtained if an open air gap is arranged between the wall of the casting vessel and the module box during assembly.
  • Precise flow control requires high stroke accuracy, a high movement speed of the lifting rod and a minimum of moving parts between the lifting rod and the servo motor.
  • the control accuracy can be further increased if the vertical guidance of the lifting rod consists of a longitudinal bearing with ball bearings and its length is 50 - 80% of the intermediate vessel height (bottom-lid support).
  • a handwheel can be coupled to the spindle of the ball screw drive in the sense of an additional training.
  • accumulators, spring assemblies etc. which are pressurized are known in the prior art. Such devices cause additional investment and maintenance costs and are poorly suited for a module solution. According to an advantageous exemplary embodiment, it is proposed to arrange a signal transmitter in the power supply for rapid detection of a power failure and in the electric drive supply capacitors, the capacitance of which is sufficient for a program-controlled emergency closing movement of the stopper in the event of a power failure.
  • an emergency slide with a locking block is assigned to the pouring nozzle.
  • a continuous casting mold 3 represents a casting mold.
  • a pouring nozzle 4 interacts with a liftable and lowerable stopper 5 and regulates the flow of steel from the intermediate vessel 2 into the continuous casting mold 3.
  • the steel flow into the mold 3 is determined according to a predetermined program, for example a pouring program. and / or controlled by a bath level measuring device 7.
  • the refractory stopper 5 surrounds the stopper rod 8, which is connected to a lifting rod 10 via an arm 9.
  • the lifting rod 10 is arranged in a vertical guide 12, which in this example consists of a longitudinal guide with ball bearings.
  • a computer-controlled electromechanical drive in the form of a servo motor 13 is arranged in a module box 15 together with the lifting rod 10 and its vertical guide 12.
  • the module box 15 is fastened to the intermediate vessel 2 with interchangeable clamping elements 16.
  • 15 suspension devices 17 are provided on the module box.
  • the clamping elements 16 are designed as quick clamping and centering elements.
  • An open air gap 20 is arranged between the wall 19 of the intermediate vessel 2 and the module box 15.
  • the module box 15 is closed in a dust-tight manner by a cover 21 and an air overpressure can be built up via a compressed air connection 22.
  • the excess 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 motor 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 connected to the ball screw 27 via a flexible, angularly rigid coupling 26.
  • the spindle 27 forms, together with a nut 28, a ball screw drive, the nut 28 and the lifting rod 10 being rigidly connected to one another via a bridge 29.
  • the path of the nut 28 is transmitted directly to the lifting rod 10 via the bridge 29.
  • the drive shaft 25 with the spindle 27 are arranged in parallel and at a short distance from the lifting rod 10 in the module box 15.
  • a handwheel 30 is arranged, which can be coupled to the spindle 27 and permits height adjustment of the lifting rod 10 when the electrical connection cable is unplugged from the motor.
  • a signal generator 33 is connected, which detects a power failure and reports a computer in the control cabinet 34.
  • capacitors are arranged in the electrical drive supply, the capacitance of which is sufficient for a program-controlled emergency closing movement of the stopper in the event of a power failure.
  • a stopper control device is also subject to faults that originate from the refractory side, such as breaking off refractory parts on the stopper, breaking or washing out the pouring nozzle, etc.
  • an emergency slide controlled by a piston-cylinder unit is required 36 attached to the intermediate vessel bottom.
  • the outflow nozzle 4 can be closed with a locking block of the emergency slide 36 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 plugs, each plug having its own module box and its own control system. If the intermediate vessel is brought from the preheating position into the casting position via the molds or into a filling position near the casting position, the plug drive motor is connected to the control cabinet 34 by means of electrical plug connections 37 before the casting begins. After this connection, the stopper movement is controlled exclusively by electrical signals from the start of casting. All transmission means known in the prior art, such as wire, light guide, radio, infrared etc., can be used for remote control.

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)
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
CH87095 1995-03-28
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

Publications (3)

Publication Number Publication Date
EP0734801A1 true EP0734801A1 (fr) 1996-10-02
EP0734801B1 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)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006125662A1 (fr) * 2005-05-23 2006-11-30 Strikowestofen Gmbh Four de fusion ou four de maintien a temperature
EP2574414A1 (fr) * 2011-09-30 2013-04-03 Siemens VAI Metals Technologies GmbH Entraînement de bouchon électromagnétique
AT518476A1 (de) * 2016-04-12 2017-10-15 Primetals Technologies Austria GmbH Verfahren zum Starten und Stoppen einer mehrsträngigen Stranggießmaschine, Gemeinsamer Stopfenantrieb und Mehrsträngige Stranggießmaschine
DE19843033B4 (de) * 1998-09-19 2017-11-09 Sms Group Gmbh Durchbrucherkennungsverfahren für eine Stranggießkokille
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

Families Citing this family (7)

* 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
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
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

Citations (5)

* 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
EP0444297A2 (fr) * 1990-02-28 1991-09-04 Stopinc Aktiengesellschaft Procédé pour démarrer automatiquement une installation de coulée continue

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (5)

* 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
EP0444297A2 (fr) * 1990-02-28 1991-09-04 Stopinc Aktiengesellschaft Procédé pour démarrer automatiquement une installation de coulée continue

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843033B4 (de) * 1998-09-19 2017-11-09 Sms Group Gmbh Durchbrucherkennungsverfahren für eine Stranggießkokille
WO2006125662A1 (fr) * 2005-05-23 2006-11-30 Strikowestofen Gmbh Four de fusion ou four de maintien a temperature
EP2574414A1 (fr) * 2011-09-30 2013-04-03 Siemens VAI Metals Technologies GmbH Entraînement de bouchon électromagnétique
WO2013045520A1 (fr) * 2011-09-30 2013-04-04 Siemens Vai Metals Technologies Gmbh Dispositif d'entraînement électromécanique pour un bouchon
AT518476A1 (de) * 2016-04-12 2017-10-15 Primetals Technologies Austria GmbH Verfahren zum Starten und Stoppen einer mehrsträngigen Stranggießmaschine, Gemeinsamer Stopfenantrieb und Mehrsträngige Stranggießmaschine
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
WO2021032354A1 (fr) * 2019-08-20 2021-02-25 Refractory Intellectual Property Gmbh & Co. Kg Dispositif d'entraînement destiné à une fermeture à bouchon sur un récipient métallurgique
CN114258330A (zh) * 2019-08-20 2022-03-29 里弗雷克特里知识产权两合公司 用于冶金器皿处的柱塞封闭的驱动装置
US11919069B2 (en) 2019-08-20 2024-03-05 Refractory Intellectual Property Gmbh & Co. Kg Drive device for a stopper for a metallurgical vessel
AT17334U1 (de) * 2020-08-26 2021-12-15 Sheffield Hi Tech Refractories Germany Gmbh Vorrichtung zum Verschließen eines Gießrohres eines metallurgischen Gefäßes

Also Published As

Publication number Publication date
CA2172335C (fr) 2001-06-12
CH689728A5 (de) 1999-09-30
EP0734801B1 (fr) 1999-07-28
ES2137580T3 (es) 1999-12-16
CA2172335A1 (fr) 1996-09-29
US5674426A (en) 1997-10-07
EP0734801B2 (fr) 2003-02-05
ES2137580T5 (es) 2003-08-01
DE59602511D1 (de) 1999-09-02

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