GB689816A - Improvements relating to the operation of electric furnaces having contmuous self-baking electrodes - Google Patents

Improvements relating to the operation of electric furnaces having contmuous self-baking electrodes

Info

Publication number
GB689816A
GB689816A GB4958/51A GB495851A GB689816A GB 689816 A GB689816 A GB 689816A GB 4958/51 A GB4958/51 A GB 4958/51A GB 495851 A GB495851 A GB 495851A GB 689816 A GB689816 A GB 689816A
Authority
GB
United Kingdom
Prior art keywords
electrode
contact
raised
zone
self
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
GB4958/51A
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.)
Elektrokemisk AS
Original Assignee
Elektrokemisk 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 Elektrokemisk AS filed Critical Elektrokemisk AS
Publication of GB689816A publication Critical patent/GB689816A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

689,816. Self-baking electrode. ELEK- 'TROKEMISK AKTIESELSKAP. March 1, 1951 [March 13, 1950], No. 4958/51. Class 39(iii) Current is supplied to one or more selfbaking electrodes in a furnace for producing molten metal, e.g. aluminium, through substantially vertical metal contact rods or contact tubes 2 extending normally into the baked zone 10b of the electrode. The lower part of each contact extending below the unbaked electrode zone is straight or screwed and is of uniform cross-section; and as the electrode is lowered during consumption, each contact rod is periodically raised in the electrode without removal therefrom until the red hot end of the contact rod 2 reaches a region 10a of the baking zone of the electrode where the electrode paste has become dry and where there is a sufficient concentration of unsaturated hydrocarbons to coke the electrode material to bond it to the lower end of the raised contact 2. The lower ends of the contacts are preferably cylndrical or rectangular, and the upper end 11 may taper downwardly. The contact is loosened for raising by blows from a pneumatic hammer. When the contact has been raised, the hole so formed in the baked part of the electrode is filled with cryolite, alumina or pasty material by feeding it either through the tubular contact rod or through a hole in the side of the electrode. A steel casing 6 forms the electrode mould and carries a gas collecting ring 7, to which pass tar fumes from the lower part of the electrode. Specifications 427,855 and 611,455 are referred to.
GB4958/51A 1950-03-13 1951-03-01 Improvements relating to the operation of electric furnaces having contmuous self-baking electrodes Expired GB689816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO290954X 1950-03-13

Publications (1)

Publication Number Publication Date
GB689816A true GB689816A (en) 1953-04-08

Family

ID=19905160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4958/51A Expired GB689816A (en) 1950-03-13 1951-03-01 Improvements relating to the operation of electric furnaces having contmuous self-baking electrodes

Country Status (3)

Country Link
CH (1) CH290954A (en)
DE (1) DE879586C (en)
GB (1) GB689816A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355604A (en) * 1962-05-18 1967-11-28 Comp Generale Electricite Continuous electrodes for magnetohydrodynamic generators

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1161652B (en) * 1958-11-05 1964-01-23 Edison Settore Chimico Azienda Continuous, self-baking metal jacket electrode for electric arc furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355604A (en) * 1962-05-18 1967-11-28 Comp Generale Electricite Continuous electrodes for magnetohydrodynamic generators

Also Published As

Publication number Publication date
CH290954A (en) 1953-05-31
DE879586C (en) 1953-06-15

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