GB981064A - Improvements in or relating to open hearth furnace operation - Google Patents
Improvements in or relating to open hearth furnace operationInfo
- Publication number
- GB981064A GB981064A GB1487061A GB1487061A GB981064A GB 981064 A GB981064 A GB 981064A GB 1487061 A GB1487061 A GB 1487061A GB 1487061 A GB1487061 A GB 1487061A GB 981064 A GB981064 A GB 981064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferrous metal
- lance
- furnace
- oxygen
- fuel
- 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
- C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Steel is produced in an open-hearth furnace by the process which comprises charging the furnace with solid ferrous metal such as steel scrap, directing an oxygen-fluid fuel flame down upon the ferrous metal from a lance in an elevated position, lowering the lance, e.g. to a position 3 or 4 feet above the ferrous metal when the charging is completed so as to melt a major proportion of the ferrous metal, then lowering the lance further to a position just above, e.g. 6 inches above, the bath surface and discharging only oxygen (fuel, e.g. natural gas, being shut off) to remove such elements as C, Si, P and S from the bath during refining. More than one water-cooled lance may be used. Burnt lime may be charged with the solid ferrous metal. The furnace is preferably also fired alternately from either end using oil as fuel with oxygen enriched air supply during the melting of the ferrous metal and subsequent charging of molten iron. Ferruginous material, such as ferrous metal (iron and steel scrap) or iron ore, may be added to control the exothermic heat generated by the oxidation of C and Si.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2918160A | 1960-05-16 | 1960-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB981064A true GB981064A (en) | 1965-01-20 |
Family
ID=21847671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1487061A Expired GB981064A (en) | 1960-05-16 | 1961-04-25 | Improvements in or relating to open hearth furnace operation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB981064A (en) |
-
1961
- 1961-04-25 GB GB1487061A patent/GB981064A/en not_active Expired
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