EP0942796B1 - 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 Download PDF

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Publication number
EP0942796B1
EP0942796B1 EP97911179A EP97911179A EP0942796B1 EP 0942796 B1 EP0942796 B1 EP 0942796B1 EP 97911179 A EP97911179 A EP 97911179A EP 97911179 A EP97911179 A EP 97911179A EP 0942796 B1 EP0942796 B1 EP 0942796B1
Authority
EP
European Patent Office
Prior art keywords
passage
molten
inductor
melt
molten material
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.)
Revoked
Application number
EP97911179A
Other languages
German (de)
English (en)
Other versions
EP0942796A1 (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
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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(B1) "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

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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 discontinuous tapping Melting, especially of metal melts, especially of liquid Steel, or molten non-metals, from one vessel through one Pass. Furthermore, the invention relates to a device for performing of the procedure.
  • Discontinuous tapping of melts takes place, for example, at Garbage melting plants.
  • US-A 5,348,566 is a method and an apparatus for inductive Controlling the outflow of a molten metal from a vessel is described.
  • the molten metal itself couples to the electromagnetic field of a Inductor.
  • the passage of the vessel does not couple to the electromagnetic one Field.
  • the object of the invention is to provide an operationally reliable method to propose the type mentioned and a corresponding device.
  • the above object is in a method of the aforementioned Kind solved in that the melt flow in the passage of the vessel or in Flow direction behind the passage of the vessel or in the flow direction behind the Run is interrupted and solidified by cooling and that to the interruption is released again and the in progress frozen melt by radial electromagnetic energy supply in the Pass is melted again.
  • the melt flow is stopped by actuating the interruption.
  • the melt is then left to freeze in one pass. It is one secure, double closure of the vessel achieved.
  • To restart the The interruption is opened in the melt flow and the melt plug melted by radial, electromagnetic energy supply. This one too The process is reliable because the use of an oxygen lance is unnecessary.
  • the interruption can either be released first and then melted the melt frozen in the run become.
  • the reverse is preferably carried out in such a way that the melt melted in the passage and then the Interruption is released. This is possible because the melting is not through an oxygen lance from below, but through radial electromagnetic Energy is supplied. This procedure has the advantage that the Interrupting (follows page 3 of the original documents).
  • Component frozen melt is melted free before the component is moved mechanically. The component is therefore not frozen through Melt blocked.
  • the electromagnetic energy supply is preferably carried out by inductive Coupling an electromagnetic field to the solidified melt and / or to the run. If the melt is a molten metal, couples them to the electromagnetic field of an inductor. It However, the pass can also be made of an inductively coupling material consist. It then transmits through heat conduction and / or heat radiation the energy on the solidified melt.
  • the cooling and solidification of the Melt in the pass after the melt flow is interrupted by means of cooling one for the electromagnetic energy supply provided inductor supported with electrically switched off inductor.
  • the solidified or melted completely solidified melt plug so quickly that a thin Edge zone of the melt plug is liquefied before in the Melt plugs temperature compensation takes place from the outside in is.
  • the melting plug that expands when it melts the liquefied material in its peripheral zone goes up or down pushed away, so that the passage is not blown up by the expansion becomes.
  • This can also result in the danger of the run exploding Plugs of melt expand into the annular space that is released in the process can.
  • the run consists of an inductive to the be resolved that the run leading to the frozen melt is heated and expands so much that the melting material coupling the electromagnetic field of the inductor, especially ceramic, because of the high temperatures of the melts.
  • An apparatus for performing the described method is characterized in that in a melt vessel a pass, in particular a sleeve is arranged, the outlet of which by means of a mechanical, known actuator arrangement closable and can be released and that the passage of an inductor, in particular an air-cooled inductor, whose electromagnetic field is surrounded directly coupled to the melt and / or to the flow.
  • an inductor in particular an air-cooled inductor, whose electromagnetic field is surrounded directly coupled to the melt and / or to the flow.
  • the known actuator arrangement can have a plate with a hole and be a closure surface. It can also consist of a blank plate and one Perforated plate or nozzle exist.
  • ferrite cores For the electromagnetic shielding of a metallic holder with which the device is attached to the vessel, ferrite cores can be provided.
  • She shows: a partial section of a metallurgical vessel with a blind plate and interchangeable nozzle.
  • a sleeve (2) made of refractory, ceramic material.
  • the sleeve (2) forms an outlet opening (3) for the melt, the Exit opening (3) to a mechanical adjusting element arrangement (4) adjoins, with which the outlet opening (3) can be closed and released.
  • the sleeve (2) is surrounded by an inductor (5), the hollow one Cross-sectional profile of a cooling medium, in particular air, flows through is.
  • the inductor (5) extends as close as possible to the outlet opening (3).
  • Adjustment element arrangement (4) can be provided with ferrite cores (7).
  • melt flow is thus primarily interrupted. Then you leave then completely or partially freeze the melts in the sleeve (2). This can be accelerated by the fact that the inductor (5) is electrical is switched off, but its cooling circuit continues to operate, so that in the Sleeve (2) specifically creates a melt plug, which is a secondary Closure forms.
  • melt is to be tapped out of the vessel again, then the inductor (5) is switched on electrically. This creates a radial, electromagnetic energy supply, through which the melt plug in the Sleeve (2) is melted.
  • the melt plug is also in an area solidified on the blind plate (10) or the closure surface at least viscous, so that the blind plate can then be removed a slide nozzle (8) can slide away from the outlet opening (3), so that their hole gets under the outlet opening (3). So that is the melt flow released again.
  • the sleeve (2) is melting when it sits in it Melt plug itself exposed to loads that are based on that the melt plug expands radially when melting, so that there is a risk that the sleeve (2) breaks or cracks form 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 area of the Melt plug in the liquid or viscous state, before entering the melt plug from the outside in Temperature compensation takes place, that is over the entire cross section of the Melt plug going temperature expansion becomes effective.
  • the leading liquid or viscous edge zone of the The melt plug will expand as it continues to expand - if the outlet opening (3) is still closed - or down and from the top of the sleeve (2) through the expanding one Melt plug pushed out so that the sleeve (2) at most one exposed to low radial internal pressure.
  • the melt flow is in the flow direction interrupted by the passage formed by the sleeve (2) and by Cooling solidified in one pass. It is also possible to change the melt flow in the passage by means of a locking pin or a stopper interrupt.

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)
  • Continuous Casting (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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Claims (12)

  1. Procédé pour la coulée discontinue de masses fondues, en particulier de bains de métal, en particulier d'acier en fusion ou de non-métaux en fusion, contenus dans une cuve à travers un orifice de sortie , caractérisé par le fait que l'on bloque l'écoulement de la masse fondue dans l'orifice de sortie de la cuve ou en aval de l'orifice de sortie, vu dans la direction d'écoulement, et que la masse fondue se solidifie par refroidissement et par le fait que pour procéder à une nouvelle coulée, on libère l'écoulement et on fait fondre par un apport radial d'énergie électromagnétique la masse fondue qui s'est solidifiée dans l'orifice de sortie.
  2. Procédé selon la revendication 1, caractérisé par le fait que pour effectuer une nouvelle coulée, on fait fondre la masse fondue solidifiée dans l'orifice de sortie, puis on libère l'écoulement.
  3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que l'apport d'énergie électromagnétique a lieu par couplage par induction d'un champ électromagnétique à la masse fondue solidifié et/ou à l'orifice de sortie.
  4. Procédé selon une ou plusieurs des revendications précédentes, caractérisé par le fait que le refroidissement et la solidification de la masse fondue dans l'orifice de sortie consécutivement à l'interruption de l'écoulement de la masse fondue sont renforcés par un refroidissement d'un inducteur prévu pour l'apport d'énergie électromagnétique, lorsque l'inducteur est électriquement hors service.
  5. Procédé selon une ou plusieurs des revendications précédentes, caractérisé par le fait que la fusion du bouchon de masse fondue solidifié ou totalement figé est tel qu'une zone périphérique du bouchon de masse fondue soit amenée à l'état liquide avant même qu'un équilibre de température s'établisse de l'extérieur vers l'intérieur dans le bouchon de masse fondue.
  6. Procédé selon une ou plusieurs des revendications précédentes, caractérisé par le fait que l'on chauffe l'orifice de sortie avant le bouchon de masse fondue et que celui-ci se dilate suffisamment pour que le bouchon de masse fondue qui commence à fondre puisse se dilater dans l'espace annulaire ainsi libéré.
  7. Dispositif pour la mise en oeuvre du procédé de coulée discontinue de masses fondues, en particulier de bains de métal en fusion, en particulier d'acier en fusion ou de non-métaux en fusion, contenus dans une cuve à travers un orifice de sortie, caractérisé par le fait qu'en particulier un manchon (2), dont la sortie (3) peut être fermée et ouverte à l'aide d'un système de commande (4) mécanique connu en soi est disposé dans l'orifice de sortie de la cuve et par le fait que l'orifice de sortie est entouré par un inducteur (5), en particulier par un inducteur refroidi par air, dont le champ magnétique est couplé à l'orifice de sortie.
  8. Dispositif selon la revendication 7, caractérisé par le fait que l'orifice de sortie est formé d'une céramique réfractaire pouvant être couplée par induction.
  9. Dispositif selon la revendication 7, caractérisé par le fait que le système de réglage connu en soi est une plaque avec un trou et une surface d'obturation.
  10. Dispositif selon la revendication 7, caractérisé par le fait que le système de commande (4) connu en soi est formé d'une plaque borgne (10) et d'une plaque perforée ou d'une busette (8) interchangeable.
  11. Dispositif selon une des revendications précédentes, caractérisé par le fait qu'un moyen (6) métallique de fixation du dispositif sur la cuve est protégé de manière connue en soi contre le champ magnétique, en particulier au moyen de noyaux de ferrite (7).
  12. Dispositif selon une des revendications précédentes, caractérisé par le fait que l'inducteur (5) s'étend le plus près possible de la sortie (3).
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
DE19641169 1996-10-08
DE19641169A DE19641169C1 (de) 1996-10-08 1996-10-08 Verfahren und Vorrichtung zum disontinuierlichen Abstechen von Schmelzen
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 EP0942796A1 (fr) 1999-09-22
EP0942796B1 true 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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108290211A (zh) * 2015-12-01 2018-07-17 里弗雷克特里知识产权两合公司 冶金容器的喷口上的滑动封闭件
US11141779B2 (en) 2016-11-29 2021-10-12 Refractory Intellectual Property Gmbh & Co. Kg Method and device for detecting variables in the outlet of a metallurgical vessel

Families Citing this family (14)

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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
DE10156355A1 (de) * 2001-11-16 2003-05-28 Sms Demag Ag Elektrolichtbogenofen
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
CA2619756A1 (fr) * 2005-08-19 2007-03-01 Advanced Metals Technology Company, Llc Buse de base de poche a induction
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
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
US8192004B2 (en) * 2009-03-26 2012-06-05 Xerox Corporation Method and apparatus for melt cessation to limit ink flow and ink stick deformation
US8366254B2 (en) * 2009-03-26 2013-02-05 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

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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
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108290211A (zh) * 2015-12-01 2018-07-17 里弗雷克特里知识产权两合公司 冶金容器的喷口上的滑动封闭件
CN108290211B (zh) * 2015-12-01 2021-07-06 里弗雷克特里知识产权两合公司 冶金容器的喷口上的滑动封闭件
US11141779B2 (en) 2016-11-29 2021-10-12 Refractory Intellectual Property Gmbh & Co. Kg Method and device for detecting variables in the outlet of a metallurgical vessel

Also Published As

Publication number Publication date
KR20000048580A (ko) 2000-07-25
EP0942796A1 (fr) 1999-09-22
WO1998015374A1 (fr) 1998-04-16
ATE192681T1 (de) 2000-05-15
AU4865297A (en) 1998-05-05
US6210629B1 (en) 2001-04-03
DE19641169C1 (de) 1998-05-28
DE59701674D1 (de) 2000-06-15
ES2148947T3 (es) 2000-10-16
JP2001501539A (ja) 2001-02-06

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