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EP0942796A1 - Procede et dispositif pour la division en discontinu de matieres en fusion - Google Patents

Procede et dispositif pour la division en discontinu de matieres en fusion

Info

Publication number
EP0942796A1
EP0942796A1 EP97911179A EP97911179A EP0942796A1 EP 0942796 A1 EP0942796 A1 EP 0942796A1 EP 97911179 A EP97911179 A EP 97911179A EP 97911179 A EP97911179 A EP 97911179A EP 0942796 A1 EP0942796 A1 EP 0942796A1
Authority
EP
European Patent Office
Prior art keywords
melt
passage
inductor
plug
vessel
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
EP97911179A
Other languages
German (de)
English (en)
Other versions
EP0942796B1 (fr
Inventor
Raimund Brückner
Daniel Grimm
Richard Ardell
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.)
Didier Werke AG
Original Assignee
Didier Werke 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=7807988&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0942796(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Didier Werke AG filed Critical Didier Werke AG
Publication of EP0942796A1 publication Critical patent/EP0942796A1/fr
Application granted granted Critical
Publication of EP0942796B1 publication Critical patent/EP0942796B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • 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
    • B22D41/60—Pouring-nozzles with heating or cooling means
    • 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

Definitions

  • the invention relates to a method for the discontinuous tapping of melts, in particular metal melts, in particular of liquid steel, or molten non-metals, from a vessel through a pass. Furthermore, the invention relates to a device for performing the method.
  • the object of the invention is to propose an operationally reliable method of the type mentioned at the outset and a corresponding device.
  • the melt flow is stopped by actuating the interruption.
  • the melt is then left to freeze in one pass. A secure, double closure of the vessel is thus achieved.
  • the interruption is opened and the melt plug is melted by radial, electromagnetic energy supply. This process is also reliable because the use of an oxygen lance is unnecessary.
  • the interruption can either be released first and then the melt frozen in the pass can be melted.
  • the reverse is preferably carried out in such a way that first the melt frozen in the passage is melted and then the interruption is released. This is possible because the melting does not take place through an oxygen lance from below, but through radial, electromagnetic energy supply.
  • This procedure has the advantage that the one forming the interruption Component frozen melt is melted free before the component is moved mechanically. The component is therefore not blocked by frozen melt.
  • the cooling and solidification of the melt in the passage after the interruption of the melt flow is supported by means of cooling an inductor provided for the electromagnetic energy supply when the inductor is electrically switched off. As a result, a melt plug that blocks the passage is quickly formed.
  • the solidified or completely solidified melt plug melts so quickly that a thin edge zone of the melt plug is liquefied before in
  • melt plugs temperature compensation from outside to inside has taken place. Due to the melting plug expanding during melting, the liquefied material is pushed away from its edge zone upwards or downwards, so that the passage is not blown up by the expansion. This can also result in the danger of the run exploding Plugs of melt can expand into the annular space that is released in the process.
  • the run consists of an inductively to be remedied that the run is heated up prematurely to the frozen melt and expands so far that the melting electromagnetic field of the inductor coupling material, in particular ceramic, due to the high temperatures of the melts .
  • a device for carrying out the described method is characterized in that a passage, in particular a sleeve, is arranged in a melt vessel, the outlet of which can be closed and released by means of a mechanical actuator arrangement known per se, and the passage is by an inductor, in particular an air-cooled one Inductor is surrounded, whose electromagnetic field couples directly to the melt and / or to the flow.
  • a passage in particular a sleeve
  • the known actuator arrangement can be a plate with a hole and a closure surface. It can also consist of a blind plate and a perforated plate or nozzle.
  • Ferrite cores can be provided for the electromagnetic shielding of a metallic holder with which the device is attached to the vessel.
  • a sleeve (2) made of refractory ceramic material is installed in the bottom (1) of a metallurgical vessel as a passage for the melt.
  • the sleeve (2) forms an outlet opening (3) for the melt, the outlet opening (3) adjoining a mechanical adjusting element arrangement (4) with which the outlet opening (3) can be closed and released.
  • the sleeve (2) is surrounded by an inductor (5), the hollow cross-sectional profile of which is flowed through by a cooling medium, in particular air.
  • the inductor (5) extends as close as possible to the outlet opening (3).
  • Ferrite cores (7) can be provided for electrical shielding against a metallic holder ( ⁇ ) of the adjusting element arrangement (4).
  • the known adjusting element arrangement (4) is displaceably guided in the holder (6).
  • the adjusting element arrangement (4) consists of an exchangeable nozzle ( ⁇ ) or perforated plate and a blind plate (10). Both are displaceable in a guide (9) of the holder (6) in such a way that when the blind plate is inserted, it pushes the interchangeable nozzle ( ⁇ ) away from the outlet opening (3), after which the blind plate then blocks the outlet opening (3) and a further one is pushed Exchangeable nozzle ( ⁇ ) pushes the blind plate away from the outlet opening (3), the interchangeable nozzle ( ⁇ ) then reaching under the outlet opening (3).
  • any other known interruption of the melt flow is also conceivable, such as a copper mandrel inserted into the sleeve (2) from below or a ceramic plug (not shown) inserted from above.
  • the operation of the devices described is essentially as follows: If the melt flow is to be stopped, then in the embodiment according to the figure the exchangeable nozzle ( ⁇ ) is pushed away by means of a blind plate until the blind plate blocks the outlet opening (3) or a mandrel or Plug inserted.
  • the melt flow is thus primarily interrupted. Subsequently, the melts in the sleeve (2) are allowed to freeze in whole or in part. This can be accelerated in that the inductor (5) is switched off electrically, but its cooling circuit continues to operate, so that a plug of melt is formed in the sleeve (2), which forms a secondary closure.
  • melt plug is melted in the sleeve (2).
  • the melt plug is at least viscous in an area that solidifies on the blind plate (10) or the closure surface, so that the blind plate can then be pushed away from the outlet opening (3) by means of an interchangeable nozzle ( ⁇ ), so that its hole under the Exit opening (3) arrives. The melt flow is then released again.
  • the sleeve (2) is itself exposed to loads when the melt plug located in it melts, due to the fact that the melt plug expands radially during the melting process, so that there is a risk that the sleeve (2) will break or form cracks in it .
  • This problem is avoided in the described device by that by means of the inductor (5) a thin edge zone of the jacket region of the melt plug changes into the liquid or viscous state before entering the melt plug from the outside in

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Silicon Compounds (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Continuous Casting (AREA)

Abstract

L'invention a pour objet un procédé pour la division en discontinu de matières en fusion sortant d'un récipient, à travers un passage, et a pour but d'améliorer la sécurité de fonctionnement d'un tel procédé. L'écoulement de la matière en fusion dans le passage (2) ou, dans le sens d'écoulement, derrière le passage (2), est interrompu et est solidifié par refroidissement. Pour une nouvelle division, l'élément d'interruption (4) est ouvert et la matière en fusion solidifiée dans le passage (2) est de nouveau fondue par apport radial d'énergie électromagnétique (5).
EP97911179A 1996-10-08 1997-10-06 Procede et dispositif pour la division en discontinu de matieres en fusion Revoked EP0942796B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19641169A DE19641169C1 (de) 1996-10-08 1996-10-08 Verfahren und Vorrichtung zum disontinuierlichen Abstechen von Schmelzen
DE19641169 1996-10-08
PCT/EP1997/005469 WO1998015374A1 (fr) 1996-10-08 1997-10-06 Procede et dispositif pour la division en discontinu de matieres en fusion

Publications (2)

Publication Number Publication Date
EP0942796A1 true EP0942796A1 (fr) 1999-09-22
EP0942796B1 EP0942796B1 (fr) 2000-05-10

Family

ID=7807988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97911179A Revoked EP0942796B1 (fr) 1996-10-08 1997-10-06 Procede et dispositif pour la division en discontinu de matieres en fusion

Country Status (9)

Country Link
US (1) US6210629B1 (fr)
EP (1) EP0942796B1 (fr)
JP (1) JP2001501539A (fr)
KR (1) KR20000048580A (fr)
AT (1) ATE192681T1 (fr)
AU (1) AU4865297A (fr)
DE (2) DE19641169C1 (fr)
ES (1) ES2148947T3 (fr)
WO (1) WO1998015374A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1312884A3 (fr) * 2001-11-16 2003-10-01 SMS Demag AG Four à arc
EP3175939A1 (fr) * 2015-12-01 2017-06-07 Refractory Intellectual Property GmbH & Co. KG Systeme de fermeture coulissante au niveau d'une busette d'un recipient metallurgique
WO2018099685A1 (fr) * 2016-11-29 2018-06-07 Refractory Intellectual Property Gmbh & Co. Kg Procédé ainsi que dispositif pour la détection de dimensions dans la busette d'un récipient métallurgique

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900074A1 (de) * 1999-01-05 2000-07-06 Didier Werke Ag Stellglied am Auslauf eines Schmelzengefäßes
DE19923800C1 (de) * 1999-05-19 2001-03-22 Sms Demag Ag Verfahren und Vorrichtung zum Halten und Abstechen von Metallschmelzen
DE19925038C2 (de) * 1999-06-01 2002-03-28 Didier Werke Ag Verfahren und Vorrichtung zum Heißreparieren eines Auslaufes eines insbesondere metallurgischen Gefässes
US6799595B1 (en) 2003-03-06 2004-10-05 The United States Of America As Represented By The Secretary Of The Navy Meltable and reclosable drain plug for molten salt reactor
KR100622266B1 (ko) 2005-02-03 2006-09-19 한국원자력연구소 진공이송과 이중용기를 이용한 용융염 정량 고화장치 및방법
JP2009504414A (ja) * 2005-08-19 2009-02-05 アドバーンスト・メタルズ・テクノロジー・カンパニー 誘導動力が付与されるレードル底部ノズル
DE102009035241B4 (de) * 2008-08-07 2014-06-12 Tmt Tapping-Measuring-Technology Gmbh Verfahren und Vorrichtungen zur Regelung der Strömungsgeschwindigkeit und zum Abbremsen von nichtferromagnetischen, elektrisch leitfähigen Flüssigkeiten und Schmelzen
DE102008036791A1 (de) * 2008-08-07 2010-02-11 Tmt Tapping-Measuring-Technology Gmbh Verfahren und Schmelzekanäle zur Unterbrechung und Wiederherstellung des Schmelzestroms von Eisen- und Metallschmelzen, insbesondere in Stichlochkanälen von Hochöfen und Abflusskanälen von Schmelzöfen
DE102008036790B4 (de) * 2008-08-07 2014-05-15 Tmt Tapping-Measuring-Technology Gmbh Abstichkanal zur Ableitung von Eisen- und Metallschmelzen sowie flüssige Schlacke aus metallurgischen Behältern, wie Hochöfen und Schmelzöfen
US8366254B2 (en) * 2009-03-26 2013-02-05 Xerox Corporation Method and apparatus for melt cessation to limit ink flow and ink stick deformation
US8192004B2 (en) 2009-03-26 2012-06-05 Xerox Corporation Method and apparatus for melt cessation to limit ink flow and ink stick deformation
DE102012209504A1 (de) 2012-06-05 2013-12-05 Sms Siemag Ag Verfahren zum Öffnen und Schließen einer Abstichöffnung eines metallurgischen Schmelzgefäßes und metallurgisches Schmelzgefäß
FR3104824B1 (fr) * 2019-12-13 2022-03-11 Renault Sas Pack de batterie avec circuit de refroidissement

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE599522C (de) * 1932-11-02 1934-07-04 Heraeus Vacuumschmelze A G Abstichvorrichtung fuer metallurgische Schmelzoefen
BE554119A (fr) * 1956-01-13
DE1041652B (de) * 1956-11-17 1958-10-23 Heraeus Gmbh W C Verfahren zum Betrieb einer Vakuum-Induktionsschmelzanlage
DE1049547B (de) * 1956-12-12 1959-01-29 Bochumer Ver Fuer Gussstahlfab Vorrichtung zum elektrisch gesteuerten Vergiessen von Metall
DE3427940C2 (de) 1984-07-28 1995-01-19 Friedhelm Prof Dr Ing Kahn Verfahren und Vorrichtungen zur Steuerung einer Raumausfüllung durch Metallschmelzen mit Hilfe von elektromagnetischen Feldern
DE4108153A1 (de) * 1991-03-14 1992-09-17 Didier Werke Ag Feuerfestes formteil und dessen verwendung
US5348566A (en) * 1992-11-02 1994-09-20 General Electric Company Method and apparatus for flow control in electroslag refining process
US5350159A (en) * 1993-02-18 1994-09-27 Westinghouse Electric Corporation On/off valve apparatus for use in conjunction with electromagnetic flow control device controlling the flow of liquid metal through an orifice
DE4428297A1 (de) * 1994-08-10 1996-02-15 Didier Werke Ag Feuerfeste Düse und Verfahren zum Vergießen einer Metallschmelze aus einem Gefäß
US5939016A (en) * 1996-08-22 1999-08-17 Quantum Catalytics, L.L.C. Apparatus and method for tapping a molten metal bath
IT1289009B1 (it) * 1996-10-21 1998-09-25 Danieli Off Mecc Dispositivo di spillaggio per forno elettrico ad arco, forno siviera o paniera e relativo procedimento di spillaggio

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9815374A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1312884A3 (fr) * 2001-11-16 2003-10-01 SMS Demag AG Four à arc
EP3175939A1 (fr) * 2015-12-01 2017-06-07 Refractory Intellectual Property GmbH & Co. KG Systeme de fermeture coulissante au niveau d'une busette d'un recipient metallurgique
WO2017093236A1 (fr) * 2015-12-01 2017-06-08 Refractory Intellectual Property Gmbh & Co. Kg Fermeture coulissante à la sortie de coulée d'un récipient métallurgique
WO2018099685A1 (fr) * 2016-11-29 2018-06-07 Refractory Intellectual Property Gmbh & Co. Kg Procédé ainsi que dispositif pour la détection de dimensions dans la busette d'un récipient métallurgique
RU2766939C2 (ru) * 2016-11-29 2022-03-16 Рефрактори Интеллектуал Проперти ГмбХ энд Ко. КГ Способ и устройство для определения различных переменных в носке металлургического конвертера

Also Published As

Publication number Publication date
WO1998015374A1 (fr) 1998-04-16
DE59701674D1 (de) 2000-06-15
KR20000048580A (ko) 2000-07-25
ATE192681T1 (de) 2000-05-15
DE19641169C1 (de) 1998-05-28
EP0942796B1 (fr) 2000-05-10
AU4865297A (en) 1998-05-05
ES2148947T3 (es) 2000-10-16
US6210629B1 (en) 2001-04-03
JP2001501539A (ja) 2001-02-06

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