GB1249258A - Improvements in or relating to electric arc furnaces - Google Patents

Improvements in or relating to electric arc furnaces

Info

Publication number
GB1249258A
GB1249258A GB4032969A GB4032969A GB1249258A GB 1249258 A GB1249258 A GB 1249258A GB 4032969 A GB4032969 A GB 4032969A GB 4032969 A GB4032969 A GB 4032969A GB 1249258 A GB1249258 A GB 1249258A
Authority
GB
United Kingdom
Prior art keywords
impedances
electrodes
lines
supply lines
aug
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
Application number
GB4032969A
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.)
Fried Krupp Huettenwerke AG
Original Assignee
Fried Krupp Huettenwerke 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 Fried Krupp Huettenwerke AG filed Critical Fried Krupp Huettenwerke AG
Publication of GB1249258A publication Critical patent/GB1249258A/en
Expired 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
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • 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
    • F27D11/00—Arrangement of elements for electric heating in or on 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
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/11—Arrangements for conducting current to the electrode terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

1,249,258. Arc furnaces current supply. FRIED KRUPP HUTTENWERKE A.G. 12 Aug., 1969 [14 Aug., 1968], No. 40329/69. Heading H5H. [Also in Division G3] In an electric arc furnace 1 adapted to be tipped in the course of steel production and having electrodes supplied with three phase current, the electrode electrical power supply line impedances are kept identical during operation of the furnace by shifting the power supply lines. The electrodes 2, 3, 4 and the transformer 5 are connected by the supply lines 9, 10, 11, which are guided above the electrode supporting arms 6, 7, 8 in tubes 12, 13, 14 and the tubes 12, 14 of the two outer supply lines each have a flexible portion 15, 10. Lifting or lowering devices 17, 18, are acted upon by a comparison instrument and a controller (not shown) in dependence upon signals from meters (not shown) for the supply line impedances, so that arms 6, 8, are shifted until the impedances of lines 9, 10, 11, become identical again, if movements of the electrodes by their automatic adjusting set-up (not shown) change these impedances.
GB4032969A 1968-08-14 1969-08-12 Improvements in or relating to electric arc furnaces Expired GB1249258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681765954 DE1765954B2 (en) 1968-08-14 1968-08-14 THREE-PHASE ARC FURNACE

Publications (1)

Publication Number Publication Date
GB1249258A true GB1249258A (en) 1971-10-13

Family

ID=5698703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4032969A Expired GB1249258A (en) 1968-08-14 1969-08-12 Improvements in or relating to electric arc furnaces

Country Status (4)

Country Link
DE (1) DE1765954B2 (en)
FR (1) FR2015650A1 (en)
GB (1) GB1249258A (en)
SE (1) SE366455B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296269A (en) * 1977-06-29 1981-10-20 National Institute For Metallurgy Control of electrical arc furnaces
DE3103044A1 (en) * 1981-01-30 1982-08-26 Fried. Krupp Gmbh, 4300 Essen ELECTRODE ARRANGEMENT FOR PREFERRED THREE-PHASE ARC FURNACES

Also Published As

Publication number Publication date
SE366455B (en) 1974-04-22
DE1765954B2 (en) 1973-03-22
DE1765954A1 (en) 1972-11-09
DE1765954C3 (en) 1973-10-04
FR2015650A1 (en) 1970-04-30

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