GB843349A - Improved process of and apparatus for making steel - Google Patents
Improved process of and apparatus for making steelInfo
- Publication number
- GB843349A GB843349A GB857957A GB857957A GB843349A GB 843349 A GB843349 A GB 843349A GB 857957 A GB857957 A GB 857957A GB 857957 A GB857957 A GB 857957A GB 843349 A GB843349 A GB 843349A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tuyeres
- metal
- supplied
- open
- oxidizing gas
- 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
-
- 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
- C21C5/56—Manufacture of steel by other methods
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C2007/0093—Duplex process; Two stage processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/2083—Arrangements for the melting of metals or the treatment of molten metals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
843,349. Steel manufacture. STEWARTS & LLOYDS Ltd. June 13, 1958 [March 15, 1957], No. 8579/57. Class 72 [Also in Group XII] A process for making steel comprises submitting molten iron to a Bessemer process and then to an open hearth process in the same vessel. As shown, molten metal is supplied to a rotatable furnace 1 which is then rotated to bring tuyeres 13, 14 into the required position below the surface of the metal and an oxidizing gas e.g. air, oxygen enriched air, or oxygen mixed with steam or carbon dioxide, is blown therethrough. The furnace is then rotated into a position in which the tuyeres are above the surface of the metal, the metal deslagged, and hot gases from a burner 7 are passed over the surface of the melt. Molten iron and slag forming materials may be added through two closable doors 19, 20, which may be spaced between 120 and 180 degrees from the tuyeres 13, 14, and the vessel may be tapped through a spout F. Waste gases from the open hearth process may be withdrawn through an outlet 22 connected to recuperators, and during the Bessemer process the doors 19, 20 may be open for the escape of gases. Secondary tuyeres may be supplied which open into the space above the melt to admit an oxidizing gas to burn CO formed during the Bessemer process, or the necessary oxidizing gas may be supplied through the burner 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB857957A GB843349A (en) | 1957-03-15 | 1957-03-15 | Improved process of and apparatus for making steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB857957A GB843349A (en) | 1957-03-15 | 1957-03-15 | Improved process of and apparatus for making steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB843349A true GB843349A (en) | 1960-08-04 |
Family
ID=9855192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB857957A Expired GB843349A (en) | 1957-03-15 | 1957-03-15 | Improved process of and apparatus for making steel |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB843349A (en) |
-
1957
- 1957-03-15 GB GB857957A patent/GB843349A/en not_active Expired
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