BG106593A - Method and device for enclosing an electric arc - Google Patents

Method and device for enclosing an electric arc

Info

Publication number
BG106593A
BG106593A BG106593A BG10659302A BG106593A BG 106593 A BG106593 A BG 106593A BG 106593 A BG106593 A BG 106593A BG 10659302 A BG10659302 A BG 10659302A BG 106593 A BG106593 A BG 106593A
Authority
BG
Bulgaria
Prior art keywords
slag
electric arc
enclosing
cracking
processor
Prior art date
Application number
BG106593A
Other languages
Bulgarian (bg)
Inventor
Norbert Uebber
Wolfgang Reichelt
Peter Monheim
Guido Grund
Original Assignee
Sms Demag Ag
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 Sms Demag Ag filed Critical Sms Demag Ag
Publication of BG106593A publication Critical patent/BG106593A/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
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5294—General arrangement or layout of the electric melt shop
    • 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
    • C21C5/54—Processes yielding slags of special composition
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling 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
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Discharge Heating (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Processing Of Terminals (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Arc Welding In General (AREA)
  • Arc Welding Control (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to a method or enclosing an electric arc (22) burning in an electric arc furnace (10) by means of foamed slag (S), formed by introducing carbon substrate into the slag in the upper half of the steel bath (M). The noise emissions generated are detected and used to control the formation of the foamed slag. The amplitude spectrum of the sound in the form of cracking (explosive sound emissions) is determined. The amplitudes connected with the cracking are evaluated, brought to a similar level and fed to processor (43). The evaluated measured values are applied in the processor (43) to controlling the foamed slag (S), whereby any deviation above or below a preset value is used to influence the feed amount (32, 33) of carbon substrate for foaming the slag. The invention further relates to a corresponding suitable device. 10 claims, 3 figures
BG106593A 1999-10-13 2002-04-10 Method and device for enclosing an electric arc BG106593A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19949330A DE19949330C2 (en) 1999-10-13 1999-10-13 Method and device for wrapping an arc
PCT/EP2000/009937 WO2001027338A1 (en) 1999-10-13 2000-10-10 Method and device for enclosing an electric arc

Publications (1)

Publication Number Publication Date
BG106593A true BG106593A (en) 2002-11-29

Family

ID=7925479

Family Applications (1)

Application Number Title Priority Date Filing Date
BG106593A BG106593A (en) 1999-10-13 2002-04-10 Method and device for enclosing an electric arc

Country Status (22)

Country Link
EP (1) EP1228252B1 (en)
JP (1) JP2003511558A (en)
KR (1) KR20020035894A (en)
CN (1) CN1379826A (en)
AT (1) ATE263257T1 (en)
AU (1) AU7664100A (en)
BG (1) BG106593A (en)
BR (1) BR0014346A (en)
CA (1) CA2387468A1 (en)
CZ (1) CZ20021305A3 (en)
DE (2) DE19949330C2 (en)
EA (1) EA200200438A1 (en)
ES (1) ES2218226T3 (en)
HU (1) HUP0203041A2 (en)
MX (1) MXPA02003696A (en)
PL (1) PL355673A1 (en)
SI (1) SI21044A (en)
SK (1) SK4962002A3 (en)
TR (1) TR200200990T2 (en)
WO (1) WO2001027338A1 (en)
YU (1) YU26902A (en)
ZA (1) ZA200203382B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152371B4 (en) * 2001-10-24 2004-04-15 Sms Demag Ag Method and device for determining the foam slag heights during the fresh process in a blow steel converter
KR100562672B1 (en) * 2001-11-14 2006-03-20 주식회사 포스코 Method for determining the height of the slag foaming in the electric furnace
MX2008000982A (en) * 2005-07-22 2008-03-27 Siemens Ag Method for determining at least one state variable of an electric arc furnace, and electric arc furnace.
KR100619521B1 (en) * 2005-12-26 2006-09-20 주식회사 드림이엔지 Apparatus of protect boring using a pier
DE102008006966A1 (en) 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Method for determining a measure of the dimensions of solid in an electric arc furnace, an electric arc furnace, a signal processing device and program code and a storage medium
DE102008006965A1 (en) 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Method for determining a radiation measure for a thermal radiation, electric arc furnace, a signal processing device and program code and a storage medium for carrying out the method
DE102008006958A1 (en) 2008-01-31 2009-08-06 Siemens Aktiengesellschaft Method for operating an electric arc furnace with at least one electrode, regulating and / or control device, machine-readable program code, data carrier and electric arc furnace for carrying out the method
US9417322B2 (en) 2010-04-26 2016-08-16 Hatch Ltd. Measurement of charge bank level in a metallurgical furnace
DE102010029289A1 (en) * 2010-05-25 2011-12-01 Sgl Carbon Se Method for operating an arc furnace, oscillation measuring device for an arc electrode and arrangement for an arc
TWI530650B (en) * 2011-03-17 2016-04-21 Daido Steel Co Ltd And the melting state determining device of the electric arc furnace
KR101877060B1 (en) * 2011-03-17 2018-07-10 다이도 스틸 코오퍼레이션 리미티드 Dissolution state determination device of arc furnace
EP2650387A1 (en) * 2012-04-11 2013-10-16 Siemens Aktiengesellschaft Method for operating a vacuum melt assembly and vacuum melt assembly operated according to this method
DE102013206980A1 (en) 2013-04-18 2014-10-23 Sms Siemag Ag Method and apparatus for operating a metallurgical furnace

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD228831A1 (en) * 1984-10-26 1985-10-23 Brandenburg Stahl Walzwerk METHOD FOR ILLUMINATING THE ARC FLASH
ATA155793A (en) * 1993-08-04 1996-04-15 Voest Alpine Ind Anlagen METHOD FOR PRODUCING A METAL MELT AND SYSTEM FOR IMPLEMENTING THE METHOD
US5557631A (en) * 1994-05-06 1996-09-17 Dynex Engineering Inc. Sonic furnace monitoring apparatus
DE4425089C1 (en) * 1994-07-15 1996-01-11 Hamburger Stahlwerke Gmbh Process for controlling foam slag formation in a three-phase arc furnace

Also Published As

Publication number Publication date
SK4962002A3 (en) 2002-12-03
EP1228252B1 (en) 2004-03-31
BR0014346A (en) 2002-06-04
ES2218226T3 (en) 2004-11-16
HUP0203041A2 (en) 2002-12-28
EA200200438A1 (en) 2002-10-31
CA2387468A1 (en) 2001-04-19
MXPA02003696A (en) 2002-11-07
TR200200990T2 (en) 2002-08-21
CN1379826A (en) 2002-11-13
EP1228252A1 (en) 2002-08-07
DE19949330A1 (en) 2001-07-05
JP2003511558A (en) 2003-03-25
YU26902A (en) 2004-11-25
DE19949330C2 (en) 2001-12-06
WO2001027338A1 (en) 2001-04-19
CZ20021305A3 (en) 2002-11-13
DE50005929D1 (en) 2004-05-06
AU7664100A (en) 2001-04-23
KR20020035894A (en) 2002-05-15
SI21044A (en) 2003-04-30
ATE263257T1 (en) 2004-04-15
PL355673A1 (en) 2004-05-04
ZA200203382B (en) 2002-11-08

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