US3406240A - Electric-arc furnace equipped with puddling coil - Google Patents

Electric-arc furnace equipped with puddling coil Download PDF

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Publication number
US3406240A
US3406240A US465293A US46529365A US3406240A US 3406240 A US3406240 A US 3406240A US 465293 A US465293 A US 465293A US 46529365 A US46529365 A US 46529365A US 3406240 A US3406240 A US 3406240A
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US
United States
Prior art keywords
coil
puddling
furnace
electric
furnace vessel
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 - Lifetime
Application number
US465293A
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English (en)
Inventor
Sixel Gustav-Adolf
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.)
Beteiligungs und Patentverwaltungs GmbH
Original Assignee
Beteiligungs und Patentverwaltungs GmbH
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 Beteiligungs und Patentverwaltungs GmbH filed Critical Beteiligungs und Patentverwaltungs GmbH
Application granted granted Critical
Publication of US3406240A publication Critical patent/US3406240A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/34—Arrangements for circulation of melts
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/02—Stirring of melted material in melting furnaces

Definitions

  • An electric arc furnace comprising a furnace vessel and puddling coil operatively disposed below the furnace vessel.
  • Means are provided for removing the puddling coil from under the furnace vessel and are arranged away from lthe underneath of the furnace vessel and include rails extending away therefrom and running gear means movable on the rails and operatively connected to the puddling coil for moving the latter away from underneath the furnace vessel and a drive motor means responsive to an impending breakthrough in the furnace vessel for actuating the running gear means, removing the puddling coil from the danger zone.
  • the present invention relates to an electric-arc furnace equipped with a puddling coil.
  • puddling coils are used, which are arranged directly below the bottom of the furnace fvessel. These coils are attached directly to the vessel in nonrotatable furnace vessels, while the coils are built into the tipping bridge structure lin rotatable furnace vessels.
  • the puddling coil disposed underneath the lfurnace bottom suffers, and is even destroyed by the liquid metal under unfavorable circumstances.
  • FIGURE l is a vertical section of an electric-arc furnace with a puddling coil, taken in the direction of tipping;
  • FIG. 2 is Ia similar section of the furnace shown in FIG. 1 taken in a direction perpendicular to the tipping direction.
  • a furnace vessel 1 rests with a rotating ring 2 and with rotating rolls (not shown) on a tipping bridge 3 which, in turn, is supported on a 3,406,240 Patented Oct. 15,1968
  • a Apuddling coil 5 is connected with a running gear 8 by means of beams 7, the running gear 8 being rollable between and 'along rails 9. l
  • the running gear 8 together with the puddling coil 5 is rolled away, in case of an impending furnace breakthrough, by means of a conventional driving device (not shown), crosswise of the tipping direction, and the puddling coil S is removed from the immediate furnace range.
  • temperature sensing elements 10 such as thermo-elements, are built in.
  • the ternperature sensing elements can automatically initiate the removal of the puddling coil S from the space under the heart-h.
  • the present invention is advantageously applicable to electric-arc melting furnace having a furnace vessel which is capable of tipping, and/or rotating, and/or rolling, wherein the devices required for tipping and/ or rotating, and/or rolling are disposed above the level of the liquid content in the furnace vessel.
  • Such furnaces can be designed such that the furnace vessel is provided on its outer periphery, above the liquid content of the furnace vessel, with a rotating ring which is mounted on supporting rollers, whichare suspended from a supporting ring equipped with tipping pivots.
  • the supporting rollers can be
  • An electric-arc furnace comprising:
  • said furnace vessel and comprising:
  • running gear means movable on said rails and operatively connected to said puddling coil for moving the latter jointly with said running gear means when said running gear means is moved
  • An electric-arc furnace comprising:
  • An electric-arc furnace comprising:
  • said last-named means being disposed above the level of the liquid content in said furnace vessel.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
US465293A 1964-07-22 1965-06-21 Electric-arc furnace equipped with puddling coil Expired - Lifetime US3406240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB77783A DE1207524B (de) 1964-07-22 1964-07-22 Mit Ruehrspule versehener Elektro-Lichtbogen-ofen

Publications (1)

Publication Number Publication Date
US3406240A true US3406240A (en) 1968-10-15

Family

ID=6979605

Family Applications (1)

Application Number Title Priority Date Filing Date
US465293A Expired - Lifetime US3406240A (en) 1964-07-22 1965-06-21 Electric-arc furnace equipped with puddling coil

Country Status (8)

Country Link
US (1) US3406240A (enrdf_load_stackoverflow)
AT (1) AT268709B (enrdf_load_stackoverflow)
BE (1) BE667204A (enrdf_load_stackoverflow)
DE (1) DE1207524B (enrdf_load_stackoverflow)
FR (1) FR1453935A (enrdf_load_stackoverflow)
GB (1) GB1101176A (enrdf_load_stackoverflow)
LU (1) LU49104A1 (enrdf_load_stackoverflow)
SE (1) SE311202B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753192A (en) * 1987-01-08 1988-06-28 Btu Engineering Corporation Movable core fast cool-down furnace
WO2018145754A1 (en) 2017-02-10 2018-08-16 Abb Schweiz Ag Furnace assembly for a metal-making process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573319A (en) * 1948-11-08 1951-10-30 Asea Ab Inductive stirring
US2665319A (en) * 1949-05-24 1954-01-05 Asea Ab Metallurgical furnace having a stirring winding
US2774803A (en) * 1952-09-20 1956-12-18 Asea Ab Inductive stirring device for metallurgical furnace
US2958719A (en) * 1958-09-18 1960-11-01 Nat Res Corp Production of metal
US3012083A (en) * 1959-02-26 1961-12-05 Asea Ab Electric stirring windings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1752887A (en) * 1928-04-13 1930-04-01 Gen Electric Induction furnace
BE364673A (enrdf_load_stackoverflow) * 1928-11-03
DE897304C (de) * 1951-07-06 1953-11-19 Demag Elektrometallurgie Gmbh Elektromagnetisches Ruehrverfahren und Elektroofen mit Ruehreinrichtung fuer das Verfahren

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573319A (en) * 1948-11-08 1951-10-30 Asea Ab Inductive stirring
US2665319A (en) * 1949-05-24 1954-01-05 Asea Ab Metallurgical furnace having a stirring winding
US2774803A (en) * 1952-09-20 1956-12-18 Asea Ab Inductive stirring device for metallurgical furnace
US2958719A (en) * 1958-09-18 1960-11-01 Nat Res Corp Production of metal
US3012083A (en) * 1959-02-26 1961-12-05 Asea Ab Electric stirring windings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753192A (en) * 1987-01-08 1988-06-28 Btu Engineering Corporation Movable core fast cool-down furnace
WO2018145754A1 (en) 2017-02-10 2018-08-16 Abb Schweiz Ag Furnace assembly for a metal-making process
US10921060B2 (en) 2017-02-10 2021-02-16 Abb Schweiz Ag Furnace assembly for a metal-making process
US11543182B2 (en) 2017-02-10 2023-01-03 Abb Schweiz Ag Furnace assembly for a metal-making process

Also Published As

Publication number Publication date
DE1207524B (de) 1965-12-23
SE311202B (enrdf_load_stackoverflow) 1969-06-02
AT268709B (de) 1969-02-25
BE667204A (enrdf_load_stackoverflow) 1965-11-16
GB1101176A (en) 1968-01-31
FR1453935A (fr) 1966-07-22
LU49104A1 (enrdf_load_stackoverflow) 1965-09-16

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