FR2391281A1 - Supply of heat energy to iron melts - by burning fuel with oxygen in intimate contact with the melt in conventional refining vessels - Google Patents
Supply of heat energy to iron melts - by burning fuel with oxygen in intimate contact with the melt in conventional refining vesselsInfo
- Publication number
- FR2391281A1 FR2391281A1 FR7714912A FR7714912A FR2391281A1 FR 2391281 A1 FR2391281 A1 FR 2391281A1 FR 7714912 A FR7714912 A FR 7714912A FR 7714912 A FR7714912 A FR 7714912A FR 2391281 A1 FR2391281 A1 FR 2391281A1
- Authority
- FR
- France
- Prior art keywords
- melt
- intimate contact
- oxygen
- supply
- heat energy
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
-
- 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
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
-
- 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
- C21C5/562—Manufacture of steel by other methods starting from scrap
-
- 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
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
-
- 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- 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
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
A fuel, pref. (hydro)carbon, is burnt with O and the combustion gases, (partly) of CO2 and H2O, are brought into intimate contact with the Fe bath, of which the C content is 0.10%max. The fuel and O may be led through >=1 nozzle under the bath surface in the refining vessel or introduced into the melt from above by high pulses. The process introduces heat to the melt in a conventional refining vessel with higher combustion efficiency than is predicted from equilibrium conditions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7714912A FR2391281A1 (en) | 1977-05-16 | 1977-05-16 | Supply of heat energy to iron melts - by burning fuel with oxygen in intimate contact with the melt in conventional refining vessels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7714912A FR2391281A1 (en) | 1977-05-16 | 1977-05-16 | Supply of heat energy to iron melts - by burning fuel with oxygen in intimate contact with the melt in conventional refining vessels |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2391281A1 true FR2391281A1 (en) | 1978-12-15 |
FR2391281B1 FR2391281B1 (en) | 1981-03-27 |
Family
ID=9190840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7714912A Granted FR2391281A1 (en) | 1977-05-16 | 1977-05-16 | Supply of heat energy to iron melts - by burning fuel with oxygen in intimate contact with the melt in conventional refining vessels |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2391281A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2170281A1 (en) * | 1972-02-02 | 1973-09-14 | Centre Rech Metallurgique | Fusing scrap iron - in vessel with concentric tuyeres providing oxygen and fuel |
US3772000A (en) * | 1971-11-23 | 1973-11-13 | Columbia Gas Syst | Method for converting solid ferrous metal to steel |
-
1977
- 1977-05-16 FR FR7714912A patent/FR2391281A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3772000A (en) * | 1971-11-23 | 1973-11-13 | Columbia Gas Syst | Method for converting solid ferrous metal to steel |
FR2170281A1 (en) * | 1972-02-02 | 1973-09-14 | Centre Rech Metallurgique | Fusing scrap iron - in vessel with concentric tuyeres providing oxygen and fuel |
Also Published As
Publication number | Publication date |
---|---|
FR2391281B1 (en) | 1981-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |