DE69201573D1 - Elektrodensteuerung für einen elektrischen Lichtbogenofen. - Google Patents

Elektrodensteuerung für einen elektrischen Lichtbogenofen.

Info

Publication number
DE69201573D1
DE69201573D1 DE69201573T DE69201573T DE69201573D1 DE 69201573 D1 DE69201573 D1 DE 69201573D1 DE 69201573 T DE69201573 T DE 69201573T DE 69201573 T DE69201573 T DE 69201573T DE 69201573 D1 DE69201573 D1 DE 69201573D1
Authority
DE
Germany
Prior art keywords
arc
furnace
electric arc
arc furnace
electrode control
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69201573T
Other languages
English (en)
Other versions
DE69201573T2 (de
Inventor
Ben Brian Bowman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graftech Technology LLC
Original Assignee
Ucar Carbon Technology Corp
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 Ucar Carbon Technology Corp filed Critical Ucar Carbon Technology Corp
Application granted granted Critical
Publication of DE69201573D1 publication Critical patent/DE69201573D1/de
Publication of DE69201573T2 publication Critical patent/DE69201573T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • 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
    • 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
    • F27D19/00—Arrangements of controlling devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1892—Arrangements for adjusting, eliminating or compensating reactive power in networks the arrangements being an integral part of the load, e.g. a motor, or of its control circuit
    • 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
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
    • H05B7/148—Automatic control of power
    • 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
    • F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)
DE69201573T 1991-01-10 1992-01-09 Elektrodensteuerung für einen elektrischen Lichtbogenofen. Expired - Fee Related DE69201573T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/639,547 US5115447A (en) 1991-01-10 1991-01-10 Arc furnace electrode control

Publications (2)

Publication Number Publication Date
DE69201573D1 true DE69201573D1 (de) 1995-04-13
DE69201573T2 DE69201573T2 (de) 1996-01-18

Family

ID=24564550

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69201573T Expired - Fee Related DE69201573T2 (de) 1991-01-10 1992-01-09 Elektrodensteuerung für einen elektrischen Lichtbogenofen.

Country Status (6)

Country Link
US (1) US5115447A (de)
EP (1) EP0494720B1 (de)
AT (1) ATE119734T1 (de)
CA (1) CA2059062C (de)
DE (1) DE69201573T2 (de)
MX (1) MX9200092A (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5528136A (en) * 1994-10-06 1996-06-18 Teradyne, Inc. VLSI component tester with average current measuring capability
DE19711453C2 (de) * 1997-03-19 1999-02-25 Siemens Ag Verfahren zur Regelung bzw. Steuerung eines Schmelzprozesses in einem Drehstrom-Lichtbogenofen
DE19733130A1 (de) * 1997-07-31 1999-02-04 Badische Stahl Eng Verfahren und Vorrichtung zur Erfassung des Schlackezustandes und der Lichtbogenstabilität in Lichtbogenöfen
NO306836B1 (no) * 1998-03-18 1999-12-27 Elkem Materials Fremgangsmåte for bestemmelse av spissposisjon for forbrukbare elektroder som anvendes i elektriske smelteovner
US6411643B1 (en) 1999-09-30 2002-06-25 Sms Demag, Inc Automatic electrode regulator based on direct power factor regulation and method
US6603795B2 (en) * 2001-02-08 2003-08-05 Hatch Associates Ltd. Power control system for AC electric arc furnace
US6573691B2 (en) 2001-10-17 2003-06-03 Hatch Associates Ltd. Control system and method for voltage stabilization in electric power system
US7180717B2 (en) 2002-07-12 2007-02-20 Cooper Technologies Company Electrical network protection system
US6810069B2 (en) * 2002-07-12 2004-10-26 Mcgraw-Edison Company Electrical arc furnace protection system
CN1682419B (zh) * 2002-07-12 2012-12-05 库帕技术公司 电气网保护系统
US6940702B2 (en) 2002-07-12 2005-09-06 Mcgraw-Edison Company Electrical protection system
US20050154611A1 (en) * 2004-01-13 2005-07-14 Sgl Carbon, Ag Product support method for industrial processes
CA2578069C (en) * 2004-09-01 2014-01-21 Hatch Ltd. System and method for minimizing loss of electrical conduction during input of feed material to a furnace
US7638999B2 (en) * 2006-04-07 2009-12-29 Cooper Technologies Company Protective relay device, system and methods for Rogowski coil sensors
US20080056327A1 (en) * 2006-08-30 2008-03-06 Hatch Ltd. Method and system for predictive electrode lowering in a furnace
US7564233B2 (en) * 2006-11-06 2009-07-21 Cooper Technologies Company Shielded Rogowski coil assembly and methods
US7738221B2 (en) 2007-12-07 2010-06-15 Cooper Technologies Company Transformer inrush current detector
CN102630107A (zh) * 2012-04-06 2012-08-08 南京理工大学常熟研究院有限公司 矿热炉电极升降控制方法
JP5912976B2 (ja) * 2012-08-01 2016-04-27 Ｊｆｅマテリアル株式会社 アーク炉の電極昇降制御方法及び装置
DE102014206008A1 (de) * 2014-03-31 2015-10-01 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur dynamischen Einstellung eines Elektrolichtbogenofens
ITUB20152674A1 (it) * 2015-07-30 2017-01-30 Danieli Automation Spa Apparato e metodo di alimentazione elettrica di un forno elettrico ad arco
CN105896574B (zh) * 2016-06-12 2018-08-24 张家港浦项不锈钢有限公司 一种140吨级电弧炉电力负荷平稳化运行的方法
CN108021783B (zh) * 2017-11-08 2021-06-01 东北大学 双电极直流电熔镁炉操作电阻计算方法
CN113324402A (zh) * 2021-05-28 2021-08-31 牡丹江师范学院 一种三相电弧冶炼电炉自动控制系统
EP4110015A1 (de) * 2021-06-22 2022-12-28 Primetals Technologies Germany GmbH Betriebsverfahren für einen lichtbogenofen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376374A (en) * 1964-10-30 1968-04-02 Westinghouse Electric Corp Polyphase arc furnace with control system to raise one electrode prior to all electrodes striking an arc
US3597518A (en) * 1970-02-27 1971-08-03 Robicon Corp Electric arc furnace control
DE2238006C3 (de) * 1972-07-28 1982-04-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Regeleinrichtung für die Elektrodenregelung von Lichtbogenöfen
US4096344A (en) * 1976-09-30 1978-06-20 Westinghouse Electric Corp. Electric arc furnace control system
GB2001461B (en) * 1977-07-21 1982-01-13 Leybold Heraeus Gmbh & Co Kg Arrangement for controlling the depth of immersion of self-consuming electrodes in electro-slag remelting furnaces
DE2948787C2 (de) * 1979-12-04 1984-05-03 Siemens AG, 1000 Berlin und 8000 München Anordnung zur Elektrodenregelung eines Lichtbogenofens
DE3023052C2 (de) * 1980-06-20 1987-05-07 MAN Gutehoffnungshütte GmbH, 4200 Oberhausen Verfahren zum Nachsetzen der Elektroden eines Elektro-Lichtbogenofens
DE3512189C2 (de) * 1985-04-03 1996-09-05 Mannesmann Ag Verfahren und Vorrichtung zur Regelung von Lichtbogenöfen
DE3512177C2 (de) * 1985-04-03 1997-01-16 Mannesmann Ag Verfahren zur Symmetrierung elektrischer Größen in Drehstrom-Lichtbogenöfen und Vorrichtung zur Durchführung des Verfahrens
SU1453630A1 (ru) * 1987-01-07 1989-01-23 Специальное проектно-конструкторское и технологическое бюро электротермического оборудования Производственного объединения "Сибэлектротерм" Устройство дл автоматического регулировани режима работы дуговой электропечи

Also Published As

Publication number Publication date
ATE119734T1 (de) 1995-03-15
MX9200092A (es) 1992-07-01
DE69201573T2 (de) 1996-01-18
US5115447A (en) 1992-05-19
EP0494720B1 (de) 1995-03-08
EP0494720A2 (de) 1992-07-15
CA2059062C (en) 2000-05-09
CA2059062A1 (en) 1992-07-11
EP0494720A3 (en) 1993-01-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee