SE7409556L - DEVICE FOR DIRECTION-FEED LIGHT BACK OVEN - Google Patents
DEVICE FOR DIRECTION-FEED LIGHT BACK OVENInfo
- Publication number
- SE7409556L SE7409556L SE7409556A SE7409556A SE7409556L SE 7409556 L SE7409556 L SE 7409556L SE 7409556 A SE7409556 A SE 7409556A SE 7409556 A SE7409556 A SE 7409556A SE 7409556 L SE7409556 L SE 7409556L
- Authority
- SE
- Sweden
- Prior art keywords
- coils
- phase
- electrode
- fed
- july
- Prior art date
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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
-
- 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
-
- 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
1506020 Electric arc furnaces ASEA AB 22 July 1975 [23 July 1974] 30584/75 Heading H5H In operating a direct arc furnace having an electrode 3 with a through channel, rotation of direct current arc 17 is effected by the magnetic fields from coils 8, 10, Fig. 1, and 11, Fig. 6 energized by alternating current. The necessary rotating magnetic field is obtained with either a two phase or asymmetrical three phase supply. A furnace may have two or four coils 10 fed with 2-phase A.C. in the roof and three coils 8 in the walls and symmetrically arranged with respect to the electrode 3, but one of the 3-phase fed coils must be so connected or wound as to produce the required asymmetric field. These coils 8, 10 may be reversed in position. Alternatively coils 11, Fig. 6 may be mounted at the tip of a cooled (by means of channels 12) non consumable electrode. The A.C. supply may be of 50 to 60 Hz. When coils are mounted beneath the vessel they are preferably of lower frequency, e.g. 1 Hz. When 3-phase fed coils are not arranged symmetrically with respect to the arcing electrode, it is not necessary to wind or connect the coils asymmetrically to produce the asymmetric field. Charge material is fed through the channel of electrode 3.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7409556A SE400013B (en) | 1974-07-23 | 1974-07-23 | DEVICE FOR DIRECTION-FEED LIGHT BACK OVEN |
| FR7520766A FR2280285A1 (en) | 1974-07-23 | 1975-07-02 | CONTINUOUS CURRENT ARC OVEN |
| DE19752530740 DE2530740A1 (en) | 1974-07-23 | 1975-07-10 | ARC FURNACE FURNISHED BY DIRECT CURRENT |
| JP50089104A JPS5135607A (en) | 1974-07-23 | 1975-07-21 | |
| GB30584/75A GB1506020A (en) | 1974-07-23 | 1975-07-22 | Direct current arc furnace |
| US05/776,868 US4149024A (en) | 1974-07-23 | 1977-03-11 | Arc furnace for reducing metal oxides and method for operating such a furnace |
| JP1980065546U JPS5752623Y2 (en) | 1974-07-23 | 1980-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7409556A SE400013B (en) | 1974-07-23 | 1974-07-23 | DEVICE FOR DIRECTION-FEED LIGHT BACK OVEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7409556L true SE7409556L (en) | 1976-01-26 |
| SE400013B SE400013B (en) | 1978-03-06 |
Family
ID=20321768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7409556A SE400013B (en) | 1974-07-23 | 1974-07-23 | DEVICE FOR DIRECTION-FEED LIGHT BACK OVEN |
Country Status (5)
| Country | Link |
|---|---|
| JP (2) | JPS5135607A (en) |
| DE (1) | DE2530740A1 (en) |
| FR (1) | FR2280285A1 (en) |
| GB (1) | GB1506020A (en) |
| SE (1) | SE400013B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT371589B (en) * | 1981-07-15 | 1983-07-11 | Voest Alpine Ag | PLASMA MELTING OVEN |
| US4431612A (en) * | 1982-06-03 | 1984-02-14 | Electro-Petroleum, Inc. | Apparatus for the decomposition of hazardous materials and the like |
| DE3674594D1 (en) * | 1986-07-04 | 1990-10-31 | Vni Pk T I Elektroterm Oboru | PLASMA INDUCTION OVENS. |
| JPH0792337B2 (en) * | 1991-09-05 | 1995-10-09 | 株式会社ニッコー | DC arc type scrap melting and refining furnace |
| RU2213792C1 (en) | 2002-04-19 | 2003-10-10 | Бурлов Юрий Александрович | Plasma-type reactor-separator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US368309A (en) * | 1887-08-16 | James b | ||
| DE384031C (en) * | 1923-10-24 | Polysius Fa G | Rotating drum heated by means of an electric arc | |
| DE428003C (en) * | 1923-02-24 | 1926-04-20 | Georg Ewreinoff | Electric furnace with an arc that revolves around the carbon electrode projecting centrally into the crucible under the influence of a magnetic field |
| US2652440A (en) * | 1950-07-18 | 1953-09-15 | Battelle Development Corp | Electric arc melting furnace |
| JPS4419844Y1 (en) * | 1967-05-24 | 1969-08-26 | ||
| US3530223A (en) * | 1969-03-03 | 1970-09-22 | Westinghouse Electric Corp | Electrode apparatus for use in an arc electrode furnace and magnetic field coils for moving and focusing the arcs therefrom |
| US3683094A (en) * | 1971-02-18 | 1972-08-08 | Max P Schlienger | Arc positioning system for rotating electrode wheel arc furnace |
-
1974
- 1974-07-23 SE SE7409556A patent/SE400013B/en not_active IP Right Cessation
-
1975
- 1975-07-02 FR FR7520766A patent/FR2280285A1/en active Granted
- 1975-07-10 DE DE19752530740 patent/DE2530740A1/en active Granted
- 1975-07-21 JP JP50089104A patent/JPS5135607A/ja active Pending
- 1975-07-22 GB GB30584/75A patent/GB1506020A/en not_active Expired
-
1980
- 1980-05-13 JP JP1980065546U patent/JPS5752623Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2280285A1 (en) | 1976-02-20 |
| DE2530740A1 (en) | 1976-02-12 |
| SE400013B (en) | 1978-03-06 |
| DE2530740C2 (en) | 1989-03-30 |
| FR2280285B1 (en) | 1980-05-30 |
| GB1506020A (en) | 1978-04-05 |
| JPS5135607A (en) | 1976-03-26 |
| JPS5752623Y2 (en) | 1982-11-15 |
| JPS55169999U (en) | 1980-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 7409556-3 Effective date: 19911009 Format of ref document f/p: F |