GB1380493A - Electric furnaces and treatment of material therein - Google Patents

Electric furnaces and treatment of material therein

Info

Publication number
GB1380493A
GB1380493A GB353172A GB353172A GB1380493A GB 1380493 A GB1380493 A GB 1380493A GB 353172 A GB353172 A GB 353172A GB 353172 A GB353172 A GB 353172A GB 1380493 A GB1380493 A GB 1380493A
Authority
GB
United Kingdom
Prior art keywords
furnace
depth
electrodes
pairs
penetration
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
GB353172A
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to IE117/72A priority Critical patent/IE36041B1/en
Priority to FR7203093A priority patent/FR2123545A1/en
Priority to SE7415536A priority patent/SE7415536L/xx
Publication of GB1380493A publication Critical patent/GB1380493A/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
    • F27D11/10—Disposition of electrodes
    • 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
    • H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
    • 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)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

1380493 Automatic control of the penetration depth of furnace electrodes SIEMENS AG 25 Jan 1972 [25 Jan 1971] 3531/72 Heading G3R The depth of penetration of the electrodes in an electric furnace e.g. an arc or resistance furnace, which has electrical currents induced in its furnace jacket by the magnetic field created by the electrodes, is adjustably determining the depth by measuring the potential difference at a plurality of pairs of points distributed over the furnace jacket and using the measurements to control the depth of the electrodes. As shown a plurality of pairs of points a, a' ... d, d' are joined to the contacts of a switch 9 by leads 7, the switch 9 sampling the potential difference of the pairs of points a, a' ... d, d' sequentially and connecting the selected pair to a measuring device 10 e.g. an electronic computer. The measuring device 10 supplies a control signal to a device which adjusts the depth of penetration of the electrode so that potential differences measured remain at desired values and the reaction centre of the furnace at a desired level.
GB353172A 1971-01-25 1972-01-25 Electric furnaces and treatment of material therein Expired GB1380493A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IE117/72A IE36041B1 (en) 1971-01-29 1972-01-28 Improvements in or relating to antibiotics
FR7203093A FR2123545A1 (en) 1971-01-29 1972-01-31 (2-hydroxy (or alkoxy)imino)acylamido penicillanic and - cephalosporanic acids - useful as antibiotics and intermediates
SE7415536A SE7415536L (en) 1971-01-29 1974-12-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2103216A DE2103216C3 (en) 1971-01-25 1971-01-25 Method for determining the immersion depth of electrodes in a reduction furnace

Publications (1)

Publication Number Publication Date
GB1380493A true GB1380493A (en) 1975-01-15

Family

ID=5796756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB353172A Expired GB1380493A (en) 1971-01-25 1972-01-25 Electric furnaces and treatment of material therein

Country Status (6)

Country Link
US (1) US3749804A (en)
JP (1) JPS5123928B1 (en)
CH (1) CH573582A5 (en)
DE (1) DE2103216C3 (en)
GB (1) GB1380493A (en)
SE (1) SE362703B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO141141C (en) * 1972-10-09 1980-01-16 Elkem Spigerverket As PROCEDURE FOR MEASURING METALLURGICAL OPERATING STANDARDS BY METALLURGICAL PROCESSES IN ELECTRICAL ELECTRO STOVES
US4213955A (en) * 1977-11-23 1980-07-22 Union Carbide Corporation Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical products
FR2619905A1 (en) * 1987-08-25 1989-03-03 Pechiney Electrometallurgie METHOD AND DEVICE FOR MEASURING THE POSITION OF CURRENT LINES AND ELECTRODE POINTS IN A POLYPHASE, SUBMERGED ARC ELECTRIC FURNACE
US5331661A (en) * 1992-02-27 1994-07-19 Sandia Corporation Method and apparatus for controlling electroslag remelting
NO306836B1 (en) 1998-03-18 1999-12-27 Elkem Materials Method for determining tip position for consumable electrodes used in electric furnaces
DE102016219261B3 (en) * 2016-10-05 2017-10-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for determining the position of the tip of an electric furnace electrode, in particular a Söderberg electrode
CN106679555B (en) * 2017-02-09 2023-06-02 内蒙古鄂尔多斯电力冶金集团股份有限公司 Submerged arc furnace electrode position measuring device and submerged arc furnace electrode position measuring method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209060A (en) * 1963-06-12 1965-09-28 Westinghouse Electric Corp Electrical apparatus
GB1263468A (en) * 1968-05-14 1972-02-09 Associate Electrical Ind Ltd Improvements relating to control arrangements for electro-slag refining apparatus

Also Published As

Publication number Publication date
DE2103216A1 (en) 1972-08-10
JPS5123928B1 (en) 1976-07-20
DE2103216C3 (en) 1978-03-16
SE362703B (en) 1973-12-17
US3749804A (en) 1973-07-31
DE2103216B2 (en) 1977-07-28
CH573582A5 (en) 1976-03-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee