BR9705272A - Método para agitação eletromagnética do metal lìquido em fornos a arco elétrico e dispositivo correspodente - Google Patents
Método para agitação eletromagnética do metal lìquido em fornos a arco elétrico e dispositivo correspodenteInfo
- Publication number
- BR9705272A BR9705272A BR9705272-8A BR9705272A BR9705272A BR 9705272 A BR9705272 A BR 9705272A BR 9705272 A BR9705272 A BR 9705272A BR 9705272 A BR9705272 A BR 9705272A
- Authority
- BR
- Brazil
- Prior art keywords
- liquid metal
- electric arc
- current
- arc furnaces
- floor
- Prior art date
Links
- 229910001338 liquidmetal Inorganic materials 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 238000010891 electric arc Methods 0.000 title abstract 4
- 238000003756 stirring Methods 0.000 title abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
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; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to 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; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Furnace Details (AREA)
- Discharge Heating (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Método Para Agitação Eleltromagnética de Metal Líquido nos Fornos a Arco Eelétrico e Dispositivo Correspondente onde um método para agitar eletromagneticamente o metal líquido (14) em fornos de arco elétrico com corrente contínua compreendendo uma soleira (35) definida por um piso (13) e paredes laterais (15), os fornos a arco elétrico incluindo um catodo central (11) cooperando com anodos (12) dispostos no piso (13) do forno e alimentados com uma corremnte principal (i~ o~), onde há um sistema eletromagnético gerando um campo magnético dentro do metal líquido (14) cujas componentes vertical (B~ z~) e radial (B~ r~) interagem respectivamente com as componentes radial (J~ r~) e vertical (J~ z~) da corrente global presente no metal líquido (14), o método utilizando um primeiro sistema eletromagnético compreendendo ao menos uma primeira bobina (19), através da qual flui uma corrente (I~ 1~), operando de dentro do piso (13) e paredes 915) da soleira (35), e um segundo sistema eletromagnético gerando uma corrente induzida secundária (I~ 3~), entre anodos (12) adjacentes, que circula através do metal líquido (14); e, um dispositivo para realizar o supra citado método consistido de uma primeira bobina (19), através da qual flui uma corrente (I~ 1~) a primeira bobina (19) compreendendo uma pluralidade de espirais (20), ao menos algumas das espirais (20) sendo dispostas dentro do refretário da soleira (35) em cooperação com o piso (13) e com ao menos um segmento vertical das paredes laterais (15).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 (1)
Publication Number | Publication Date |
---|---|
BR9705272A true BR9705272A (pt) | 1999-10-13 |
Family
ID=11422207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9705272-8A BR9705272A (pt) | 1996-10-14 | 1997-10-14 | Método para agitação eletromagnética do metal lìquido em fornos a arco elétrico e dispositivo correspodente |
Country Status (11)
Country | Link |
---|---|
US (1) | US6026113A (pt) |
EP (1) | EP0835942B1 (pt) |
KR (1) | KR19980032784A (pt) |
AT (1) | ATE205886T1 (pt) |
AU (1) | AU719313B2 (pt) |
BR (1) | BR9705272A (pt) |
CA (1) | CA2218016A1 (pt) |
DE (1) | DE69706794T2 (pt) |
ES (1) | ES2161405T3 (pt) |
IT (1) | IT1289001B1 (pt) |
ZA (1) | ZA979152B (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6341642B1 (en) | 1997-07-01 | 2002-01-29 | Ipsco Enterprises Inc. | Controllable variable magnetic field apparatus for flow control of molten steel in a casting mold |
US7651656B2 (en) * | 2006-07-20 | 2010-01-26 | Kenzo Takahashi | Melting furnace with agitator and agitator for melting furnace |
ES2606237T3 (es) | 2011-07-18 | 2017-03-23 | Abb Research Ltd. | Procedimiento y sistema de control para controlar un proceso de fusión |
MX2014008174A (es) * | 2012-01-03 | 2014-10-06 | Abb Research Ltd | Un metodo para fundir acero. |
EP2792755B1 (en) | 2013-04-16 | 2015-06-10 | ABB Technology Ltd | A method and a control system for controlling a melting and refining process |
EP2894426A1 (en) * | 2014-01-14 | 2015-07-15 | ABB Technology AG | Method for scheduling a production process |
US9925591B2 (en) * | 2014-08-21 | 2018-03-27 | Molyworks Materials Corp. | Mixing cold hearth metallurgical system and process for producing metals and metal alloys |
US10921060B2 (en) | 2017-02-10 | 2021-02-16 | Abb Schweiz Ag | Furnace assembly for a metal-making process |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1562825A (en) * | 1924-11-11 | 1925-11-24 | Evreynoff Georg | Electric furnace |
US1683986A (en) * | 1925-08-01 | 1928-09-11 | Ajax Electrothermic Corp | Induction pressure or vacuum furnace |
US1943802A (en) * | 1930-03-18 | 1934-01-16 | Ajax Electrothermic Corp | Electric induction furnace |
US2322618A (en) * | 1942-03-25 | 1943-06-22 | Mare Baltzar E L De | Apparatus for converting high-phosphorus pig iron into high-grade low-phosphorus steel |
JPS495691B1 (pt) * | 1965-03-23 | 1974-02-08 | ||
US3683094A (en) * | 1971-02-18 | 1972-08-08 | Max P Schlienger | Arc positioning system for rotating electrode wheel arc furnace |
US4149024A (en) * | 1974-07-23 | 1979-04-10 | Asea Aktiebolag | Arc furnace for reducing metal oxides and method for operating such a furnace |
SE396531B (sv) * | 1975-11-06 | 1977-09-19 | Asea Ab | Anordning vid likstromsmatade ljusbagsugnar |
BG35678A1 (en) * | 1981-12-01 | 1984-06-15 | Savov | Method and device for treating and refining liquid alloys |
SE447846B (sv) * | 1982-09-09 | 1986-12-15 | Asea Ab | Skenkugn med likstromsvermning |
US4495625A (en) * | 1983-07-05 | 1985-01-22 | Westinghouse Electric Corp. | Magnetic field stabilized transferred arc furnace |
FR2602320B1 (fr) * | 1986-08-01 | 1989-12-29 | Clecim Sa | Procede de fusion de ferraille et four electrique pour la mise en oeuvre du procede |
SE461761B (sv) * | 1988-05-03 | 1990-03-19 | Fiz Tekh Inst Ioffe | Elektrisk ljusbaaganordning |
US5142650A (en) * | 1989-11-14 | 1992-08-25 | Asahi Glass Company Ltd. | Bottom electrode for a direct current arc furnace |
CA2054774C (en) * | 1990-03-19 | 1997-01-21 | Nobuyoshi Takashiba | Direct current electric furnace for melting metal |
CH680086A5 (pt) * | 1990-05-09 | 1992-06-15 | Asea Brown Boveri | |
CH682281A5 (pt) * | 1991-06-20 | 1993-08-13 | Asea Brown Boveri | |
DE69320564T2 (de) * | 1992-07-31 | 1999-04-29 | Danieli & C. Officine Meccaniche S.P.A., Buttrio, Udine | Gleichstromlichtbogenofen mit Steuerung der Lichtbogenablenkung |
FR2708725B1 (fr) * | 1993-07-29 | 1995-11-10 | Imphy Sa | Procédé de fusion d'un matériau électroconducteur dans un four de fusion par induction en creuset froid et four de fusion pour la mise en Óoeuvre de ce procédé. |
-
1996
- 1996-10-14 IT IT96UD000194A patent/IT1289001B1/it active IP Right Grant
-
1997
- 1997-10-06 AT AT97117246T patent/ATE205886T1/de not_active IP Right Cessation
- 1997-10-06 ES ES97117246T patent/ES2161405T3/es not_active Expired - Lifetime
- 1997-10-06 EP EP97117246A patent/EP0835942B1/en not_active Expired - Lifetime
- 1997-10-06 DE DE69706794T patent/DE69706794T2/de not_active Expired - Fee Related
- 1997-10-10 CA CA002218016A patent/CA2218016A1/en not_active Abandoned
- 1997-10-10 AU AU40949/97A patent/AU719313B2/en not_active Ceased
- 1997-10-13 ZA ZA9709152A patent/ZA979152B/xx unknown
- 1997-10-14 US US08/949,763 patent/US6026113A/en not_active Expired - Fee Related
- 1997-10-14 BR BR9705272-8A patent/BR9705272A/pt not_active Application Discontinuation
- 1997-10-14 KR KR1019970052427A patent/KR19980032784A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ITUD960194A1 (it) | 1998-04-14 |
ZA979152B (en) | 1998-05-11 |
DE69706794T2 (de) | 2002-05-23 |
ITUD960194A0 (it) | 1996-10-14 |
MX9707919A (es) | 1998-08-30 |
AU4094997A (en) | 1998-04-23 |
DE69706794D1 (de) | 2001-10-25 |
ES2161405T3 (es) | 2001-12-01 |
IT1289001B1 (it) | 1998-09-25 |
AU719313B2 (en) | 2000-05-04 |
EP0835942A1 (en) | 1998-04-15 |
EP0835942B1 (en) | 2001-09-19 |
KR19980032784A (ko) | 1998-07-25 |
CA2218016A1 (en) | 1998-04-14 |
US6026113A (en) | 2000-02-15 |
ATE205886T1 (de) | 2001-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Decision: intention to grant | ||
FA11 | Dismissal: dismissal - article 38, par. 2 of industrial property law | ||
B15K | Others concerning applications: alteration of classification |
Ipc: F27D 27/00 (2010.01), B01F 13/08 (2006.0 |