IT1280115B1 - Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco - Google Patents

Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco

Info

Publication number
IT1280115B1
IT1280115B1 IT95UD000003A ITUD950003A IT1280115B1 IT 1280115 B1 IT1280115 B1 IT 1280115B1 IT 95UD000003 A IT95UD000003 A IT 95UD000003A IT UD950003 A ITUD950003 A IT UD950003A IT 1280115 B1 IT1280115 B1 IT 1280115B1
Authority
IT
Italy
Prior art keywords
phase
oxygen
oven
burners
slag
Prior art date
Application number
IT95UD000003A
Other languages
English (en)
Inventor
Gianni Gensini
Matteo Losciale
Cecco Corrado De
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 ITUD950003A0 publication Critical patent/ITUD950003A0/it
Priority to IT95UD000003A priority Critical patent/IT1280115B1/it
Priority to AT95120399T priority patent/ATE216483T1/de
Priority to DE69526422T priority patent/DE69526422T2/de
Priority to EP95120399A priority patent/EP0723129B1/en
Priority to ES95120399T priority patent/ES2174894T3/es
Priority to IN1754CA1995 priority patent/IN186479B/en
Priority to ZA9683A priority patent/ZA9683B/xx
Priority to CA002167140A priority patent/CA2167140A1/en
Priority to PL96312321A priority patent/PL312321A1/xx
Priority to CN96100435A priority patent/CN1145469A/zh
Priority to BR9600458A priority patent/BR9600458A/pt
Priority to US08/583,727 priority patent/US5802097A/en
Publication of ITUD950003A1 publication Critical patent/ITUD950003A1/it
Application granted granted Critical
Publication of IT1280115B1 publication Critical patent/IT1280115B1/it

Links

Classifications

    • 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; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • F27B3/225—Oxygen blowing
    • 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
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the 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; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/20—Arrangements of heating devices
    • F27B3/205—Burners
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Vertical, Hearth, Or Arc Furnaces (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)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)

Abstract

Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia per la fusione di base a base ferro, detto forno elettrico (10) presentando tubiere ossigeno (13) poste sul fondo, almeno una tubiera a carbone (15) che opera nell'area di contatto tra il bagno di metallo fuso (16) e lo strato di scoria (22), almeno una lancia supersonica (12) cooperante con una lancia carbone (29), delle lance (12, 29) presentando una posizione di lavoro (12c, 29c) in cui la lancia supersonica (12) è posta in stretta prossimità alla superficie del metallo fuso (16) e la lancia carbone (29) è posta in prossimità della superficie dello strato di scoria (22), una pluralità di bruciatori (28) posti sulle pareti raffreddate (31) del forno (10) eroganti gas a base ossigeno e sostanze combustibili, in cui almeno due primi bruciatori (28) lavorano ad inseguimento, detto forno (10) venendo caricato con una o più cariche, che prevedono una prima fase di avvio della fusione ed una seconda fase di fusione, essendo prevista, una fase di affinazione ed una fase di spillaggio, in cui: nella prima fase di avvio della fusione, almeno un secondo bruciatore (28e) collabora per rapidamente liberare il percorso di introduzione della lancia supersonica (12) e della lancia carbone (29); almeno un terzo bruciatore (28a) è direzionato verso il centro del forno (10) in cooperazione con l'area di uscita in superficie del bagno dell'ossigeno erogato da una tubiera ossigeno (13); i bruciatori (28) operano nella prima fase come bruciatori, nella seconda fase come bruciatori, nella seconda fase come lamce ad ossigeno sub - soniche e nella terza fase vengono sostanzialmente spenti; le tubiere ossigeno (13) erogano ossigeno in grande quantità ed a bassa pressione; l'erogazione delle sostanze carboniose è orientata verso il centro del forno (10) ed interviene in cooperazione con la scoria (22) sia al di sopra di essa ed il metallo liquido; le razioni Fe + O = FeO, FeO + C = Fe + Co vengono fatte avvenire all'interno del bagno di metallo liquido (16), appena al di sopra della superficie del detto metallo liquido (16) e nell'intorno dello spessore della scoria 822) la quale viene elaborata per essere scoria schiumosa; la reazione CO + O = CO2 viene fatta avvenire appena al di sopra della superficie del metallo liquido (16) e nell'intorno dello spessore della scoria (22). Forno elettrico ad arco che realizza il procedimento di cui sopra.
IT95UD000003A 1995-01-17 1995-01-17 Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco IT1280115B1 (it)

Priority Applications (12)

Application Number Priority Date Filing Date Title
IT95UD000003A IT1280115B1 (it) 1995-01-17 1995-01-17 Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco
AT95120399T ATE216483T1 (de) 1995-01-17 1995-12-22 Schmelzverfahren für lichtbogenofen mit verschiedenen energiequellen und lichtbogen dafür
DE69526422T DE69526422T2 (de) 1995-01-17 1995-12-22 Schmelzverfahren für Lichtbogenofen mit verschiedenen Energiequellen und Lichtbogen dafür
EP95120399A EP0723129B1 (en) 1995-01-17 1995-12-22 Melting method for an electric arc furnace with alternative sources of energy and relative electric arc furnace
ES95120399T ES2174894T3 (es) 1995-01-17 1995-12-22 Metodo de fusion para horno de arco electrico con fuentes alternati vas de energia y horno de arco electrico correspondiente.
IN1754CA1995 IN186479B (it) 1995-01-17 1995-12-28
ZA9683A ZA9683B (en) 1995-01-17 1996-01-05 Melting method for an electric arc furnace with alternative sources of energy and relative electric arc furnace
CA002167140A CA2167140A1 (en) 1995-01-17 1996-01-12 Melting method for an electric arc furnace with alternative sources of energy and relative electric arc furnace
PL96312321A PL312321A1 (en) 1995-01-17 1996-01-15 Method of electric arc furnace smelting with application of alternative energy sources and electric arc furnace therefor
CN96100435A CN1145469A (zh) 1995-01-17 1996-01-16 电弧炉及其熔炼方法
BR9600458A BR9600458A (pt) 1995-01-17 1996-01-17 Método de fusão para forno a arco elétrico com fontes alternativas de energia e forno a arco elétrico
US08/583,727 US5802097A (en) 1995-01-17 1996-01-17 Melting method for an electric ARC furnace with alternative sources of energy and relative electric ARC furnace with special burner positioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95UD000003A IT1280115B1 (it) 1995-01-17 1995-01-17 Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco

Publications (3)

Publication Number Publication Date
ITUD950003A0 ITUD950003A0 (it) 1995-01-17
ITUD950003A1 ITUD950003A1 (it) 1996-07-17
IT1280115B1 true IT1280115B1 (it) 1998-01-05

Family

ID=11421697

Family Applications (1)

Application Number Title Priority Date Filing Date
IT95UD000003A IT1280115B1 (it) 1995-01-17 1995-01-17 Procedimento di fusione per forno elettrico ad arco con sorgenti alternative di energia e relativo forno elettrico ad arco

Country Status (12)

Country Link
US (1) US5802097A (it)
EP (1) EP0723129B1 (it)
CN (1) CN1145469A (it)
AT (1) ATE216483T1 (it)
BR (1) BR9600458A (it)
CA (1) CA2167140A1 (it)
DE (1) DE69526422T2 (it)
ES (1) ES2174894T3 (it)
IN (1) IN186479B (it)
IT (1) IT1280115B1 (it)
PL (1) PL312321A1 (it)
ZA (1) ZA9683B (it)

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AUPO944697A0 (en) * 1997-09-26 1997-10-16 Technological Resources Pty Limited A method of producing metals and metal alloys
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US5999557A (en) * 1998-06-19 1999-12-07 The Broken Hill Proprietary Company Steel making bath control
AUPP442598A0 (en) 1998-07-01 1998-07-23 Technological Resources Pty Limited Direct smelting vessel
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AUPP554098A0 (en) * 1998-08-28 1998-09-17 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
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AUPP647198A0 (en) 1998-10-14 1998-11-05 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
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US7951325B2 (en) * 2006-05-17 2011-05-31 Air Liquide Advanced Technologies U.S. Llc Methods of implementing a water-cooling system into a burner panel and related apparatuses
WO2009120858A1 (en) * 2008-03-28 2009-10-01 L'air Liquide Societe Anonyme Pour L'etude Et L' Exploitation Des Procedes Burner/injector panel apparatus
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CN102618693A (zh) * 2012-04-24 2012-08-01 中冶赛迪工程技术股份有限公司 偏心出钢侧顶连续加料的密闭电炉炉体
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ITUD20130052A1 (it) * 2013-04-23 2014-10-24 Danieli Off Mecc Procedimento per la fusione di materiale metallico in un impianto di fusione e relativo impianto di fusione
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CN106119543B (zh) * 2016-07-01 2019-03-08 北京中凯宏德科技有限公司 冶金电炉及熔炼方法
CN106367558A (zh) * 2016-10-11 2017-02-01 马鞍山钢铁股份有限公司 一种电弧炉氧枪结构
DE102020215140A1 (de) 2020-12-01 2022-06-02 Sms Group Gmbh Verfahren und Einschmelzaggregat zum pyrometallurgischen Einschmelzen von metallhaltigen Rohstoffen, Reststoffen und/oder Sekundärreststoffen
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Also Published As

Publication number Publication date
BR9600458A (pt) 1998-03-03
ZA9683B (en) 1996-08-08
DE69526422D1 (de) 2002-05-23
EP0723129A3 (en) 1996-11-06
IN186479B (it) 2001-09-08
ATE216483T1 (de) 2002-05-15
CA2167140A1 (en) 1996-07-18
US5802097A (en) 1998-09-01
ITUD950003A1 (it) 1996-07-17
EP0723129A2 (en) 1996-07-24
PL312321A1 (en) 1996-07-22
ITUD950003A0 (it) 1995-01-17
EP0723129B1 (en) 2002-04-17
ES2174894T3 (es) 2002-11-16
CN1145469A (zh) 1997-03-19
DE69526422T2 (de) 2003-04-24

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