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MX9707919A - Metodo para la agitacion electromagnetica del metal liquido en hornos de arco electrico y dispositivo relacionado. - Google Patents

Metodo para la agitacion electromagnetica del metal liquido en hornos de arco electrico y dispositivo relacionado.

Info

Publication number
MX9707919A
MX9707919A MX9707919A MX9707919A MX9707919A MX 9707919 A MX9707919 A MX 9707919A MX 9707919 A MX9707919 A MX 9707919A MX 9707919 A MX9707919 A MX 9707919A MX 9707919 A MX9707919 A MX 9707919A
Authority
MX
Mexico
Prior art keywords
liquid metal
floor
electric arc
current
bobbin
Prior art date
Application number
MX9707919A
Other languages
English (en)
Other versions
MXPA97007919A (es
Inventor
Milorad Pavlicevic
Anatoly Kolesnichenko
Alfredo Poloni
Cristina Bassi
Original Assignee
Danieli Off Mecc
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 Danieli Off Mecc filed Critical Danieli Off Mecc
Publication of MX9707919A publication Critical patent/MX9707919A/es
Publication of MXPA97007919A publication Critical patent/MXPA97007919A/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D27/00—Stirring devices for molten material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/451—Magnetic mixers; Mixers with magnetically driven stirrers wherein the mixture is directly exposed to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles or for molten metal
    • 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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • 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
    • H05B6/34—Arrangements for circulation of melts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/45—Mixing in metallurgical processes of ferrous or non-ferrous materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085—Arc furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0039—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising magnetic means
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/02—Stirring of melted material in melting furnaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Furnace Details (AREA)
  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Un método para la agitacion electromagnética del metal líquido (14) en hornos de arco eléctrico de corriente directa, que comprenden una cámara de fusion (35) definida por un piso (13) y por paredes laterales (15), incluyendo los hornos de arco eléctrico de cátodo central (11) que coopera con ánodos (12) configurados sobre el piso (13) del horno, y alimentados por una corriente principal (I0), en donde hay un sistema electromagnético que genera un campo magnético adentro del metal líquido (14) cuyos componentes vertical (Bz) y radial (Br) interactuan respectivamente con los componentes radial (Jr) y vertical (Jz) de la corriente global presente en el metal líquido (14), utilizando el método un primer sistema electromagnético que comprende cuando menos una primera bobina (19) a través de la cual fluye una corriente (I1), y que opera desde adentro del piso (13) y las paredes (15) de la cámara de fusion (35), y un segundo sistema electromagnético que genera una corriente inducida secundaria (I3), entre losánodos adyacentes (12), que circula a través del metal líquido (14). Un dispositivo para lograr el método anterior, y que consiste en una primera bobina (19) a través de la cual fluye una corriente (I1), comprendiendo la primera bobina (19) una pluralidad de espirales (20), configurándose cuando menos algunas de las aspirales (20) adentro del refractario de la cámara de fusion (35) en cooperacion con el piso (13) y con cuando menos un segmento vertical de las paredes laterales (15).
MXPA/A/1997/007919A 1996-10-14 1997-10-14 Metodo para la agitacion electromagnetica del metal liquido en hornos de arco electrico y dispositivo relacionado MXPA97007919A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UDUD96A000194 1996-10-14
IT96UD000194A IT1289001B1 (it) 1996-10-14 1996-10-14 Sistema per l'agitazione elettromagnetica del metallo liquido in forni elettrici ad arco a corrente continua

Publications (2)

Publication Number Publication Date
MX9707919A true MX9707919A (es) 1998-08-30
MXPA97007919A MXPA97007919A (es) 1998-11-12

Family

ID=

Also Published As

Publication number Publication date
BR9705272A (pt) 1999-10-13
ITUD960194A0 (it) 1996-10-14
AU4094997A (en) 1998-04-23
KR19980032784A (ko) 1998-07-25
DE69706794D1 (de) 2001-10-25
AU719313B2 (en) 2000-05-04
DE69706794T2 (de) 2002-05-23
EP0835942A1 (en) 1998-04-15
ES2161405T3 (es) 2001-12-01
IT1289001B1 (it) 1998-09-25
ZA979152B (en) 1998-05-11
ITUD960194A1 (it) 1998-04-14
EP0835942B1 (en) 2001-09-19
ATE205886T1 (de) 2001-10-15
US6026113A (en) 2000-02-15
CA2218016A1 (en) 1998-04-14

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Legal Events

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