WO1998015374A1 - Verfahren und vorrichtung zum diskontinuierlichen abstechen von schmelzen - Google Patents
Verfahren und vorrichtung zum diskontinuierlichen abstechen von schmelzen Download PDFInfo
- Publication number
- WO1998015374A1 WO1998015374A1 PCT/EP1997/005469 EP9705469W WO9815374A1 WO 1998015374 A1 WO1998015374 A1 WO 1998015374A1 EP 9705469 W EP9705469 W EP 9705469W WO 9815374 A1 WO9815374 A1 WO 9815374A1
- Authority
- WO
- WIPO (PCT)
- 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.)
- Ceased
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 melt outflow is specifically interrupted while the vessel is still more or less full, in order to be started again afterwards.
- the melt freezes in the pass and forms a plug there. This must be removed before restarting the melt outflow.
- the plug is melted out using an oxygen lance. For this purpose, this must be passed from below to the vessel, which is a dangerous operation.
- the object of the invention is to propose an operationally reliable method of the type mentioned at the outset and a corresponding device.
- the above object is achieved in a method of the type mentioned at the outset in that the melt flow is interrupted in the passage of the vessel or in the flow direction behind the passage and is solidified by cooling and that the interruption is released for tapping again and the melt frozen in the passage by radial electromagnetic energy supply is melted again.
- 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 electromagnetic energy supply is preferably carried out by inductively coupling an electromagnetic field to the solidified melt and / or to the pass. If the melt is a molten metal, it couples itself to the electromagnetic field of an inductor. However, the passage can also consist of an inductively coupling material. It then transfers the energy to the solidified melt by heat conduction and / or heat radiation.
- 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
- the melt flow is interrupted in the flow direction behind the passage formed by the sleeve (2) and solidified in the passage by cooling. It is also possible to interrupt the flow of melt in the passage by means of a sealing dome or a stopper.
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)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Silicon Compounds (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Continuous Casting (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU48652/97A AU4865297A (en) | 1996-10-08 | 1997-10-06 | Method and device for discontinuous parting off of molten mass |
| DE59701674T DE59701674D1 (de) | 1996-10-08 | 1997-10-06 | Verfahren und vorrichtung zum diskontinuierlichen abstechen von schmelzen |
| EP97911179A EP0942796B1 (de) | 1996-10-08 | 1997-10-06 | Verfahren und vorrichtung zum diskontinuierlichen abstechen von schmelzen |
| JP10517163A JP2001501539A (ja) | 1996-10-08 | 1997-10-06 | 溶融物を不連続に湯出しする方法及び装置 |
| US09/284,118 US6210629B1 (en) | 1996-10-08 | 1997-10-06 | Method and device for discontinuous parting off of molten mass |
| AT97911179T ATE192681T1 (de) | 1996-10-08 | 1997-10-06 | Verfahren und vorrichtung zum diskontinuierlichen abstechen von schmelzen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19641169A DE19641169C1 (de) | 1996-10-08 | 1996-10-08 | Verfahren und Vorrichtung zum disontinuierlichen Abstechen von Schmelzen |
| DE19641169.6 | 1996-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998015374A1 true WO1998015374A1 (de) | 1998-04-16 |
Family
ID=7807988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1997/005469 Ceased WO1998015374A1 (de) | 1996-10-08 | 1997-10-06 | Verfahren und vorrichtung zum diskontinuierlichen abstechen von schmelzen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6210629B1 (de) |
| EP (1) | EP0942796B1 (de) |
| JP (1) | JP2001501539A (de) |
| KR (1) | KR20000048580A (de) |
| AT (1) | ATE192681T1 (de) |
| AU (1) | AU4865297A (de) |
| DE (2) | DE19641169C1 (de) |
| ES (1) | ES2148947T3 (de) |
| WO (1) | WO1998015374A1 (de) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010015687A1 (de) * | 2008-08-07 | 2010-02-11 | Tmt Tapping-Measuring-Technology Gmbh | Abstichkanal zur ableitung von eisen- und metallschmelzen sowie flüssiger schlacke aus metallurgischen behältern wie hochöfen und schmelzöfen |
| US7703304B2 (en) | 2005-02-03 | 2010-04-27 | Korea Atomic Energy Research Institute | Apparatus for quantitative solidification of molten salt by using vacuum transfer and dual vessel |
| WO2010015682A3 (de) * | 2008-08-07 | 2010-10-07 | Tmt Tapping-Measuring-Technology Gmbh | Verfahren und schmelzekanäle zur unterbrechung und wiederherstellung des schmelzestroms von eisen- und metallschmelzen in stichlochkanälen von hochöfen und abflusskanälen von schmelzöfen |
| WO2013182395A1 (de) * | 2012-06-05 | 2013-12-12 | Sms Siemag Ag | VERFAHREN ZUM ÖFFNEN UND SCHLIEßEN EINER ABSTICHÖFFNUNG EINES METALLURGISCHEN SCHMELZGEFÄßES UND METALLURGISCHES SCHMELZGEFÄß |
| RU2532213C2 (ru) * | 2008-08-07 | 2014-10-27 | Тмт Тэппинг-Межеринг-Текнолоджи Гмбх | Способ и устройство для управления скоростью потока и замедления потока неферромагнитных электропроводных жидкостей и расплавов |
| US10799949B2 (en) | 2015-12-01 | 2020-10-13 | Refractory Intellectual Property & GmbH & Co. KG | Slide closure on the spout of a metallurgical vessel |
| 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 |
| CN114902478A (zh) * | 2019-12-13 | 2022-08-12 | 雷诺股份公司 | 具有冷却回路的电池包 |
Families Citing this family (8)
| 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 |
| 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 |
| CN101292048A (zh) * | 2005-08-19 | 2008-10-22 | 先进金属技术有限公司 | 感应激励的热铸桶底部喷嘴 |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE599522C (de) * | 1932-11-02 | 1934-07-04 | Heraeus Vacuumschmelze A G | Abstichvorrichtung fuer metallurgische Schmelzoefen |
| 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 |
| DE1084446B (de) * | 1956-01-13 | 1960-06-30 | Balzers Vakuum Ges Mit Beschra | Einrichtung zum Abgiessen von schmelzfluessigen Metallen hoher Temperatur aus einem Behaelter mit einer im Behaelterboden angeordneten Abguss-oeffnung, die in ein beheizbares Abgussrohr auslaeuft |
| 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 |
| DE4428297A1 (de) * | 1994-08-10 | 1996-02-15 | Didier Werke Ag | Feuerfeste Düse und Verfahren zum Vergießen einer Metallschmelze aus einem Gefäß |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
-
1996
- 1996-10-08 DE DE19641169A patent/DE19641169C1/de not_active Expired - Fee Related
-
1997
- 1997-10-06 AU AU48652/97A patent/AU4865297A/en not_active Abandoned
- 1997-10-06 AT AT97911179T patent/ATE192681T1/de not_active IP Right Cessation
- 1997-10-06 JP JP10517163A patent/JP2001501539A/ja active Pending
- 1997-10-06 EP EP97911179A patent/EP0942796B1/de not_active Revoked
- 1997-10-06 US US09/284,118 patent/US6210629B1/en not_active Expired - Fee Related
- 1997-10-06 WO PCT/EP1997/005469 patent/WO1998015374A1/de not_active Ceased
- 1997-10-06 ES ES97911179T patent/ES2148947T3/es not_active Expired - Lifetime
- 1997-10-06 KR KR1019990702507A patent/KR20000048580A/ko not_active Withdrawn
- 1997-10-06 DE DE59701674T patent/DE59701674D1/de not_active Revoked
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE599522C (de) * | 1932-11-02 | 1934-07-04 | Heraeus Vacuumschmelze A G | Abstichvorrichtung fuer metallurgische Schmelzoefen |
| DE1084446B (de) * | 1956-01-13 | 1960-06-30 | Balzers Vakuum Ges Mit Beschra | Einrichtung zum Abgiessen von schmelzfluessigen Metallen hoher Temperatur aus einem Behaelter mit einer im Behaelterboden angeordneten Abguss-oeffnung, die in ein beheizbares Abgussrohr auslaeuft |
| 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 |
| 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 |
| DE4428297A1 (de) * | 1994-08-10 | 1996-02-15 | Didier Werke Ag | Feuerfeste Düse und Verfahren zum Vergießen einer Metallschmelze aus einem Gefäß |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7703304B2 (en) | 2005-02-03 | 2010-04-27 | Korea Atomic Energy Research Institute | Apparatus for quantitative solidification of molten salt by using vacuum transfer and dual vessel |
| WO2010015687A1 (de) * | 2008-08-07 | 2010-02-11 | Tmt Tapping-Measuring-Technology Gmbh | Abstichkanal zur ableitung von eisen- und metallschmelzen sowie flüssiger schlacke aus metallurgischen behältern wie hochöfen und schmelzöfen |
| WO2010015682A3 (de) * | 2008-08-07 | 2010-10-07 | Tmt Tapping-Measuring-Technology Gmbh | Verfahren und schmelzekanäle zur unterbrechung und wiederherstellung des schmelzestroms von eisen- und metallschmelzen in stichlochkanälen von hochöfen und abflusskanälen von schmelzöfen |
| CN102177259A (zh) * | 2008-08-07 | 2011-09-07 | Tmt出铁测量技术有限公司 | 用于从如高炉和熔炉的冶金容器中排出铁和金属熔液以及液态炉渣的出料通道 |
| RU2532213C2 (ru) * | 2008-08-07 | 2014-10-27 | Тмт Тэппинг-Межеринг-Текнолоджи Гмбх | Способ и устройство для управления скоростью потока и замедления потока неферромагнитных электропроводных жидкостей и расплавов |
| WO2013182395A1 (de) * | 2012-06-05 | 2013-12-12 | Sms Siemag Ag | VERFAHREN ZUM ÖFFNEN UND SCHLIEßEN EINER ABSTICHÖFFNUNG EINES METALLURGISCHEN SCHMELZGEFÄßES UND METALLURGISCHES SCHMELZGEFÄß |
| US9200846B2 (en) | 2012-06-05 | 2015-12-01 | Sms Group Gmbh | Method for opening and closing a tapping opening of a metallurgical smelting vessel and metallurgical smelting vessel |
| US10799949B2 (en) | 2015-12-01 | 2020-10-13 | Refractory Intellectual Property & GmbH & Co. KG | Slide closure on the spout of a metallurgical vessel |
| 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 |
| CN114902478A (zh) * | 2019-12-13 | 2022-08-12 | 雷诺股份公司 | 具有冷却回路的电池包 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2148947T3 (es) | 2000-10-16 |
| KR20000048580A (ko) | 2000-07-25 |
| ATE192681T1 (de) | 2000-05-15 |
| AU4865297A (en) | 1998-05-05 |
| US6210629B1 (en) | 2001-04-03 |
| DE59701674D1 (de) | 2000-06-15 |
| JP2001501539A (ja) | 2001-02-06 |
| EP0942796A1 (de) | 1999-09-22 |
| EP0942796B1 (de) | 2000-05-10 |
| DE19641169C1 (de) | 1998-05-28 |
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Legal Events
| Date | Code | Title | Description |
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