GB123306A - Improvements in Electric Furnaces. - Google Patents
Improvements in Electric Furnaces.Info
- Publication number
- GB123306A GB123306A GB1650/19A GB165019A GB123306A GB 123306 A GB123306 A GB 123306A GB 1650/19 A GB1650/19 A GB 1650/19A GB 165019 A GB165019 A GB 165019A GB 123306 A GB123306 A GB 123306A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductors
- casing
- blocks
- hearth
- crucible
- 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
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
- F27D11/02—Ohmic resistance heating
- F27D11/04—Ohmic resistance heating with direct passage of current through the material being heated
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Discharge Heating (AREA)
Abstract
123,306. Soc. Electro-Dletallurgique Franþaise. Feb. 11, 1918, [Convention date]. Electrode furnaces.-Connexion is made to the hearth of a crucible by refractory conductors fitting perforations in the hearth and extending below it into powdered heat-insulating material. As shown, the powder 2 separates the carbon or other crucible 3 from an outer casing 1 which may be or ferro-concrete or other material of high compressive strength. Platforms 11 may be made integral with the casing. In a carbide furnace, the powder may be quicklime; in a silicon furnace, it may be infusorial earth or fibrous carborundum. Tapping is effected through openings each flocred by a carbon block 6 and surrounded by a refractory flange 7 to protect the concrete. The base of the crucible consists of one or more main central blocks 4. supported by the walls, and smaller blocks jointed by tar or molasses. In the main blocks 4 fit the graphitized conductors 8, which may be provided within the heat-insulating powder with water-cooled screw terminals 9, The part of the casing through which the conductors pass may be of sheet-metal 10 to allow expansion. The hearth connexion may be omitted. In a two or three phase furnace, conductors inserted in blocks beneath the separate upper electrode may be connected by flexible strips below the casing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR123306X | 1918-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB123306A true GB123306A (en) | 1919-10-23 |
Family
ID=32339163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1650/19A Expired GB123306A (en) | 1918-02-11 | 1919-01-22 | Improvements in Electric Furnaces. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB123306A (en) |
-
1919
- 1919-01-22 GB GB1650/19A patent/GB123306A/en not_active Expired
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