FR2404186A1 - Electrode arrangement for dc electrothermal furnaces - having four electrode arranged in a square with polarity changer connections - Google Patents

Electrode arrangement for dc electrothermal furnaces - having four electrode arranged in a square with polarity changer connections

Info

Publication number
FR2404186A1
FR2404186A1 FR7825795A FR7825795A FR2404186A1 FR 2404186 A1 FR2404186 A1 FR 2404186A1 FR 7825795 A FR7825795 A FR 7825795A FR 7825795 A FR7825795 A FR 7825795A FR 2404186 A1 FR2404186 A1 FR 2404186A1
Authority
FR
France
Prior art keywords
square
electrode
connections
arrangement
electrodes
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.)
Granted
Application number
FR7825795A
Other languages
French (fr)
Other versions
FR2404186B1 (en
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.)
Elkem ASA
Original Assignee
Elkem Spigerverket AS
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 Elkem Spigerverket AS filed Critical Elkem Spigerverket AS
Publication of FR2404186A1 publication Critical patent/FR2404186A1/en
Application granted granted Critical
Publication of FR2404186B1 publication Critical patent/FR2404186B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/60—Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
    • 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
    • F27D11/02—Ohmic resistance heating
    • F27D11/04—Ohmic resistance heating with direct passage of current through the material being heated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

Electrode arrangement for d.c. electrothermal reduction furnace has electrodes mounted above it. These are connected in pairs as anodes and cathodes mounted in series to the output of a d.c. rectifier with a switching arrangement. The electrodes are mounted on the 4 corners of a square and inserted through a hole in the top. Each pair of electrodes are connected to the poles of the d.c. source and have a pole inverter connector connected across them. Used in electrothermal reduction furnaces and gives a d.c. arrangement comparable to that on an a.c. furnace.
FR7825795A 1977-09-26 1978-09-07 Electrode arrangement for dc electrothermal furnaces - having four electrode arranged in a square with polarity changer connections Granted FR2404186A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO773285A NO139796C (en) 1977-09-26 1977-09-26 DC DC OVEN.

Publications (2)

Publication Number Publication Date
FR2404186A1 true FR2404186A1 (en) 1979-04-20
FR2404186B1 FR2404186B1 (en) 1983-11-25

Family

ID=19883734

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825795A Granted FR2404186A1 (en) 1977-09-26 1978-09-07 Electrode arrangement for dc electrothermal furnaces - having four electrode arranged in a square with polarity changer connections

Country Status (12)

Country Link
JP (1) JPS582574B2 (en)
BR (1) BR7806278A (en)
CA (1) CA1120522A (en)
DE (1) DE2841458A1 (en)
ES (1) ES473538A1 (en)
FR (1) FR2404186A1 (en)
IN (1) IN150223B (en)
MX (1) MX144969A (en)
NO (1) NO139796C (en)
SE (1) SE434432B (en)
YU (1) YU209478A (en)
ZA (1) ZA784897B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0648315B2 (en) * 1987-09-16 1994-06-22 動力炉・核燃料開発事業団 Thermal decomposition treatment equipment for radioactive waste

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR400655A (en) * 1908-06-15 1909-08-04 Charles Albert Keller Control system for circuits feeding electric multi-electrode furnaces
US2958719A (en) * 1958-09-18 1960-11-01 Nat Res Corp Production of metal
FR2033817A5 (en) * 1969-02-03 1970-12-04 Boehler & Co Ag Geb
FR2197988A1 (en) * 1972-08-29 1974-03-29 Nipkti Po Cherna Metalurgia

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE147582C (en) *
FR941145A (en) * 1944-06-24 1949-01-03 Electric liquid resistance furnace for smelting and refining metals, for making alloys, reducing minerals and for other similar purposes
DE1161042B (en) * 1961-09-06 1964-01-09 Duisburger Kupferhuette Round three-phase electric furnace with a four-electrode system, in particular a reduction furnace for electrothermal zinc extraction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR400655A (en) * 1908-06-15 1909-08-04 Charles Albert Keller Control system for circuits feeding electric multi-electrode furnaces
US2958719A (en) * 1958-09-18 1960-11-01 Nat Res Corp Production of metal
FR2033817A5 (en) * 1969-02-03 1970-12-04 Boehler & Co Ag Geb
FR2197988A1 (en) * 1972-08-29 1974-03-29 Nipkti Po Cherna Metalurgia

Also Published As

Publication number Publication date
NO773285L (en) 1979-01-29
BR7806278A (en) 1979-05-08
NO139796B (en) 1979-01-29
ES473538A1 (en) 1979-04-01
FR2404186B1 (en) 1983-11-25
SE7809783L (en) 1979-03-27
CA1120522A (en) 1982-03-23
YU209478A (en) 1982-06-30
JPS582574B2 (en) 1983-01-17
ZA784897B (en) 1980-04-30
DE2841458A1 (en) 1979-04-05
SE434432B (en) 1984-07-23
MX144969A (en) 1981-12-08
NO139796C (en) 1979-05-09
IN150223B (en) 1982-08-21
JPS5454906A (en) 1979-05-01

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse