IT1289021B1 - ELECTRIC ARC FURNACE AND RELATED CONTINUOUS MELTING PROCESS - Google Patents

ELECTRIC ARC FURNACE AND RELATED CONTINUOUS MELTING PROCESS

Info

Publication number
IT1289021B1
IT1289021B1 IT96UD000218A ITUD960218A IT1289021B1 IT 1289021 B1 IT1289021 B1 IT 1289021B1 IT 96UD000218 A IT96UD000218 A IT 96UD000218A IT UD960218 A ITUD960218 A IT UD960218A IT 1289021 B1 IT1289021 B1 IT 1289021B1
Authority
IT
Italy
Prior art keywords
raw material
liquid metal
electric arc
zone
arc furnace
Prior art date
Application number
IT96UD000218A
Other languages
Italian (it)
Inventor
Milorad Pavlicevic
Negra Angelico Della
Alfredo Poloni
Gianni Gensini
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
Priority to IT96UD000218A priority Critical patent/IT1289021B1/en
Publication of ITUD960218A0 publication Critical patent/ITUD960218A0/en
Priority to DE69712020T priority patent/DE69712020D1/en
Priority to EP97119472A priority patent/EP0843020B1/en
Priority to ES97119472T priority patent/ES2172727T3/en
Priority to AT97119472T priority patent/ATE216433T1/en
Publication of ITUD960218A1 publication Critical patent/ITUD960218A1/en
Application granted granted Critical
Publication of IT1289021B1 publication Critical patent/IT1289021B1/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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • 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
    • C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
    • 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
    • F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
    • F27D13/002—Preheating scrap

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Discharge Heating (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Electric arc furnace to continuously melt steel and its alloys including at least a first body (11) comprising an upper zone (35) for the loading of the raw material (17) and a lower zone (36) for the melting and the first refining of the molten metal, and at least a second body (12) including a zone (37) with the function of decanting and refining the liquid metal and with a tapping hole (30) for the liquid metal, the first (11) and second (12) bodies forming a single body connected by means of a channel (13) through which the liquid metal is transferred, the upper zone (35) of the first body (11) cooperating at least with loading means (24), the first (11) and second (12) bodies including at least a respective central and vertical electrode (14,114) and relative anodes (15) located on the bottom part, the first body (11) including on the side walls heating burners (22) and supersonic lances (23) to blow in oxygen and the second body (12) including on the bottom part tuyères (26) to blow in carbon, the loading means (24) to load the raw material (17) being of the continuous type and associated with means to stir and distribute (19, 20) the raw material (17) in a homogeneous manner, the channel (13) being associated with means to regulate the flow from one body (11) to the other (12). <IMAGE>
IT96UD000218A 1996-11-13 1996-11-13 ELECTRIC ARC FURNACE AND RELATED CONTINUOUS MELTING PROCESS IT1289021B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT96UD000218A IT1289021B1 (en) 1996-11-13 1996-11-13 ELECTRIC ARC FURNACE AND RELATED CONTINUOUS MELTING PROCESS
DE69712020T DE69712020D1 (en) 1996-11-13 1997-11-06 Double-hearth electric arc furnace for continuous melting
EP97119472A EP0843020B1 (en) 1996-11-13 1997-11-06 Double hearth electric arc furnace for continuous melting
ES97119472T ES2172727T3 (en) 1996-11-13 1997-11-06 ELECTRIC ARC OVEN FOR CONTINUOUS FOUNDATION.
AT97119472T ATE216433T1 (en) 1996-11-13 1997-11-06 DOUBLE STOVE ELECTRIC ARC FURNACE FOR CONTINUOUS MELTING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96UD000218A IT1289021B1 (en) 1996-11-13 1996-11-13 ELECTRIC ARC FURNACE AND RELATED CONTINUOUS MELTING PROCESS

Publications (3)

Publication Number Publication Date
ITUD960218A0 ITUD960218A0 (en) 1996-11-13
ITUD960218A1 ITUD960218A1 (en) 1998-05-13
IT1289021B1 true IT1289021B1 (en) 1998-09-25

Family

ID=11422229

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96UD000218A IT1289021B1 (en) 1996-11-13 1996-11-13 ELECTRIC ARC FURNACE AND RELATED CONTINUOUS MELTING PROCESS

Country Status (5)

Country Link
EP (1) EP0843020B1 (en)
AT (1) ATE216433T1 (en)
DE (1) DE69712020D1 (en)
ES (1) ES2172727T3 (en)
IT (1) IT1289021B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404942B (en) 1997-06-27 1999-03-25 Voest Alpine Ind Anlagen PLANT AND METHOD FOR PRODUCING METAL MELT
US6269112B1 (en) * 1999-05-18 2001-07-31 Alfredo Poloni Electric arc furnace for continuous charging with ferrous materials and semicontinuous tapping of molten steel
CN107218812B (en) * 2017-06-20 2023-05-23 浙江今飞凯达轮毂股份有限公司 Energy-saving heat preservation furnace for casting
CN110343869B (en) * 2019-08-09 2023-05-26 新乡市华瑞电源材料有限公司 Communication type electrolytic lead melting pot and use method thereof
CN110425893B (en) * 2019-08-16 2024-05-14 中冶赛迪工程技术股份有限公司 Connection structure of electric furnace feeding duct and electric furnace system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482929A (en) * 1966-04-01 1967-06-02 Siderurgie Fse Inst Rech Process of making a metal in an electric furnace
AT384669B (en) * 1986-03-17 1987-12-28 Voest Alpine Ag PLANT FOR PRODUCING STEEL FROM SCRAP
IT1245346B (en) * 1990-04-09 1994-09-20 Blufin Spa METHOD OF PREHEATING IRON SCRAP THROUGH PYROLYSIS OF RESIN RESIDUALS CONTAINED WITH ITS INTEGRAL RECOVERY OF THEIR ENERGY CONTENT AND IMPROVEMENT OF THE STEEL CYCLE
US5471495A (en) * 1991-11-18 1995-11-28 Voest-Alpine Industrieanlagenbeau Gmbh Electric arc furnace arrangement for producing steel
FR2705768B1 (en) * 1993-05-27 1995-07-21 Lorraine Laminage Metallurgical furnace for the smelting of metallic materials and / or the production of liquid metal, such as an electric steelworks furnace, and method of production using such a furnace.
DE4445783A1 (en) * 1994-12-21 1996-06-27 Fuchs Technology Ag Tiltable metallurgical aggregate
AT404841B (en) * 1995-04-10 1999-03-25 Voest Alpine Ind Anlagen SYSTEM AND METHOD FOR PRODUCING MELTING IRON

Also Published As

Publication number Publication date
ES2172727T3 (en) 2002-10-01
ITUD960218A1 (en) 1998-05-13
EP0843020A1 (en) 1998-05-20
DE69712020D1 (en) 2002-05-23
ATE216433T1 (en) 2002-05-15
EP0843020B1 (en) 2002-04-17
ITUD960218A0 (en) 1996-11-13

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Legal Events

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0001 Granted