WO2000061823B1 - Method and device for tapping molten metal from metallurgical vessels - Google Patents

Method and device for tapping molten metal from metallurgical vessels

Info

Publication number
WO2000061823B1
WO2000061823B1 PCT/EP2000/003064 EP0003064W WO0061823B1 WO 2000061823 B1 WO2000061823 B1 WO 2000061823B1 EP 0003064 W EP0003064 W EP 0003064W WO 0061823 B1 WO0061823 B1 WO 0061823B1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
vessel
melting vessel
metallurgical melting
tap opening
Prior art date
Application number
PCT/EP2000/003064
Other languages
German (de)
French (fr)
Other versions
WO2000061823A1 (en
Inventor
Karl-Heinz Deppner
Wei-Ping Wu
Original Assignee
Schloemann Siemag Ag
Deppner Karl Heinz
Wu Wei Ping
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
Application filed by Schloemann Siemag Ag, Deppner Karl Heinz, Wu Wei Ping filed Critical Schloemann Siemag Ag
Priority to CA002366193A priority Critical patent/CA2366193A1/en
Priority to BR0009418-8A priority patent/BR0009418A/en
Priority to SK1438-2001A priority patent/SK14382001A3/en
Priority to EP00926821A priority patent/EP1183397B1/en
Priority to JP2000610871A priority patent/JP2002541329A/en
Priority to AT00926821T priority patent/ATE230802T1/en
Priority to DE50001056T priority patent/DE50001056D1/en
Priority to MXPA01010238A priority patent/MXPA01010238A/en
Publication of WO2000061823A1 publication Critical patent/WO2000061823A1/en
Publication of WO2000061823B1 publication Critical patent/WO2000061823B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4693—Skull removal; Cleaning of the converter mouth

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Details (AREA)

Abstract

In order to impede entrainment or trailing of molten slag (1) while tapping molten metal (2) from a metallurgical vessel (5) having a tap hole (1) in the bottom (13) of said vessel, the molten slag (1) is blown away from the surface of the molten metal in the area of the tap hole (10) (2) by a gas jet (9) with high impulsive energy.

Claims

GEÄNDERTE ANSPRÜCHE[beim Internationalen Büro am 5. Oktober 2000 (05.10.00) eingegangen; ursprüngliche Ansprüche 1-10 durch geänderte Ansprüche 1-9 ersetzt (2 Seiten)] CHANGED CLAIMS [received at the International Bureau on October 5, 2000 (10/5/00); original claims 1-10 replaced by amended claims 1-9 (2 pages)]
1. Verfahren zum Abstechen von Metallschmelzen, vorzugsweise von Stahlschmelzen, aus metallurgischen Schmelzgefäßen wie beispielsweise Elektrolichtbogenöfen, durch eine im Gefäßboden angeordnete Abstichöffnung, wobei zum Zeitpunkt des Abstichs die Metallschmelze mit Schlackenschmelze überschichtet ist und während des Abstichs im Bereich der Abstichöffnung die Schlackenschmelze durch mindestens einen Gasstrahl, der durch mindestens eine Düse in das metallurgische Schmelzgefäß eingeblasen wird, von der Oberfläche der Metallschmelze entfernt (weggeblasen) wird, dadurch gekennzeichnet, dass im Bereich der Abstichöffnung (10) mindestens ein Gasstrahl (9) schräg von unten und mindestens ein Gasstrahl (9) schräg von oben gegen die Schlackenschmelze (1 ) gerichtet ist.1. Method for tapping metal melts, preferably steel melts, from metallurgical melting vessels such as, for example, electric arc furnaces, through a tap opening arranged in the bottom of the vessel, the metal melt being covered with slag melt at the time of tapping and the slag melt being tapped in the region of the tap opening by at least one Gas jet which is blown into the metallurgical melting vessel through at least one nozzle is removed (blown away) from the surface of the metal melt, characterized in that in the region of the tap opening (10) at least one gas jet (9) obliquely from below and at least one gas jet ( 9) is directed obliquely from above against the slag melt (1).
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die Stärke und die Einblasrate des Gasstrahls (9) durch eine Ventilstation (16) geregelt wird.2. The method according to claim 1, characterized in that the strength and the blowing rate of the gas jet (9) is regulated by a valve station (16).
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass durch ein Mess- und Regelsystem (20) der Startzeitpunkt, die Dauer und die Intensität des Gaseinblasens automatisch überwacht und geregelt wird.3. The method according to claim 1 or 2, characterized in that the starting time, the duration and the intensity of the gas injection is automatically monitored and regulated by a measuring and control system (20).
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass zur automatischen Regelung des Gaseinblasens durch das Mess- und Regelsystem (20) mindestens einer der Parameter, nämlich die Höhe des Schmelzbadspiegels (15) im metallurgischen Schmelzgefäß (5), Kippwinkel und Kippgeschwindigkeit des Schmelzgefäßes (5) und/oder Abstichgewicht der Metallschmelze (2) in der Schmelzpfanne (11 ) verwendet wird.4. The method according to claim 3, characterized in that for automatic control of the gas injection by the measuring and control system (20) at least one of the parameters, namely the height of the molten bath level (15) in the metallurgical melting vessel (5), tilt angle and tilting speed of the melting vessel (5) and / or tapping weight of the molten metal (2) in the melting pan (11) is used.
5. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zum Einblasen ein neutrales Gas oder ein Gasgemisch, beispielsweise ein Edelgas, verwendet wird, das die weitere Bearbeitung und Verwendung der Metallschmelze (2) nicht negativ beeinflusst. 5. The method according to one or more of claims 1 to 4, characterized in that a neutral gas or a gas mixture, for example a noble gas, is used for blowing, which does not adversely affect the further processing and use of the molten metal (2).
6. Metallurgisches Schmelzgefäß (5) mit einer im Gefäßboden (13) angeordneten Abstichöffnung (10) und mit mindestens einer im Bereich der Abstichöffnung (10) durch die seitliche Gefäßwand (12) geführten Düse (3) zum Einblasen des Gasstrahls (9), zur Durchführung des Verfahrens nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Düsenaustrittsöffnungen (14) der Düsen (3) oberhalb und unterhalb des Badspiegels (15) angeordnet sind.6. Metallurgical melting vessel (5) with a tap opening (10) arranged in the bottom of the vessel (13) and with at least one nozzle (3) guided in the area of the tap opening (10) through the side vessel wall (12) for blowing in the gas jet (9), for carrying out the method according to one or more of the preceding claims, characterized in that the nozzle outlet openings (14) of the nozzles (3) are arranged above and below the bath level (15).
7. Metallurgisches Schmelzgefäß (5) nach Anspruch 6, dadurch gekennzeichnet, dass die Größe, Form, Anzahl und Anordnung der Düsen (3) entsprechend der Größe der Badoberfläche ausgelegt sind.7. Metallurgical melting vessel (5) according to claim 6, characterized in that the size, shape, number and arrangement of the nozzles (3) are designed according to the size of the bath surface.
8. Metallurgisches Schmelzgefäß (5) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Düsen (3) über eine Ventilstation (16) mit einer Druckgaserzeugungsvorrichtung (17) und/oder einem Druckgasbehälter (18) verbunden sind.8. Metallurgical melting vessel (5) according to claim 6 or 7, characterized in that the nozzles (3) via a valve station (16) with a compressed gas generating device (17) and / or a compressed gas container (18) are connected.
9. Metallurgisches Schmelzgefäß (5) nach Anspruch 8, dadurch gekennzeichnet, dass die Ventilstation (16) mit einem Mess- und Regelsystem (20) verbunden ist.9. Metallurgical melting vessel (5) according to claim 8, characterized in that the valve station (16) is connected to a measuring and control system (20).
GEÄNDERTES BLATT (ARTLKEL 19) CHANGED SHEET (ARTLKEL 19)
PCT/EP2000/003064 1999-04-10 2000-04-06 Method and device for tapping molten metal from metallurgical vessels WO2000061823A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA002366193A CA2366193A1 (en) 1999-04-10 2000-04-06 Method and device for tapping molten metal from metallurgical vessels
BR0009418-8A BR0009418A (en) 1999-04-10 2000-04-06 Process and device for extracting molten metals from metallurgical melting vessels
SK1438-2001A SK14382001A3 (en) 1999-04-10 2000-04-06 Method and device for tapping molten metal from metallurgical vessels
EP00926821A EP1183397B1 (en) 1999-04-10 2000-04-06 Method and device for tapping molten metal from metallurgical vessels
JP2000610871A JP2002541329A (en) 1999-04-10 2000-04-06 Method and apparatus for tapping molten metal from a metallurgical melting vessel
AT00926821T ATE230802T1 (en) 1999-04-10 2000-04-06 METHOD AND DEVICE FOR CUTTING METAL MELTS FROM METALLURGICAL MELTING VESSELS
DE50001056T DE50001056D1 (en) 1999-04-10 2000-04-06 METHOD AND DEVICE FOR PARTING METAL MELT FROM METALLURGICAL MELTING VESSELS
MXPA01010238A MXPA01010238A (en) 1999-04-10 2000-04-06 Method and device for tapping molten metal from metallurgical vessels.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19916232.8 1999-04-10
DE19916232A DE19916232A1 (en) 1999-04-10 1999-04-10 Method and device for tapping metal melts from metallurgical melting vessels

Publications (2)

Publication Number Publication Date
WO2000061823A1 WO2000061823A1 (en) 2000-10-19
WO2000061823B1 true WO2000061823B1 (en) 2001-02-01

Family

ID=7904145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/003064 WO2000061823A1 (en) 1999-04-10 2000-04-06 Method and device for tapping molten metal from metallurgical vessels

Country Status (12)

Country Link
EP (1) EP1183397B1 (en)
JP (1) JP2002541329A (en)
AT (1) ATE230802T1 (en)
BR (1) BR0009418A (en)
CA (1) CA2366193A1 (en)
DE (2) DE19916232A1 (en)
ES (1) ES2190964T3 (en)
MX (1) MXPA01010238A (en)
SK (1) SK14382001A3 (en)
TR (1) TR200102932T2 (en)
TW (1) TW538127B (en)
WO (1) WO2000061823A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014712A1 (en) * 2000-03-24 2001-09-27 Sms Demag Ag Method and device for slag-free pouring of metal melts from metallurgical melting vessels
DE10117181C1 (en) * 2001-04-05 2002-10-31 Georgsmarienhuette Gmbh Method and device for preventing slag from flowing along when tapping a molten steel
EP2803927A1 (en) * 2013-05-17 2014-11-19 Siemens VAI Metals Technologies GmbH Metallurgical furnace vessel and method for operating the same
KR101918360B1 (en) 2016-11-25 2018-11-13 한국수력원자력 주식회사 Mold support device for uniform vitrified form and forming method uniform vitrified form using in the same
CN112091206B (en) * 2019-05-31 2021-07-16 宝山钢铁股份有限公司 Safe and reliable molten iron pretreatment automatic slag skimming method and system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743575A1 (en) * 1987-12-22 1989-07-13 Krupp Gmbh METHOD FOR TAKING A METAL MELT AND METALLURGICAL TUBE FOR CARRYING OUT THE METHOD
US5203909A (en) * 1991-10-15 1993-04-20 Ltv Steel Company, Inc. Method and apparatus for slag free casting
JPH0857599A (en) * 1994-08-26 1996-03-05 Nisshin Steel Co Ltd Method and device for removing slag in tundish and continuous casting apparatus
JPH10176212A (en) * 1996-12-18 1998-06-30 Sumitomo Metal Ind Ltd Method for preventing flow-out of slag at the time of discharging molten steel

Also Published As

Publication number Publication date
EP1183397B1 (en) 2003-01-08
TW538127B (en) 2003-06-21
DE50001056D1 (en) 2003-02-13
MXPA01010238A (en) 2002-05-06
ATE230802T1 (en) 2003-01-15
SK14382001A3 (en) 2002-09-10
EP1183397A1 (en) 2002-03-06
BR0009418A (en) 2002-01-02
DE19916232A1 (en) 2000-10-12
CA2366193A1 (en) 2000-10-19
WO2000061823A1 (en) 2000-10-19
ES2190964T3 (en) 2003-09-01
TR200102932T2 (en) 2002-05-21
JP2002541329A (en) 2002-12-03

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