JPS5669320A - Continuous preliminary processing of molten iron and gas producing method - Google Patents
Continuous preliminary processing of molten iron and gas producing methodInfo
- Publication number
- JPS5669320A JPS5669320A JP14546079A JP14546079A JPS5669320A JP S5669320 A JPS5669320 A JP S5669320A JP 14546079 A JP14546079 A JP 14546079A JP 14546079 A JP14546079 A JP 14546079A JP S5669320 A JPS5669320 A JP S5669320A
- Authority
- JP
- Japan
- Prior art keywords
- lance
- molten iron
- added
- oxygen
- powder
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE:To reduce a fuel ratio in the blast furnace and to produce by-produced gas having high freedom, by adding the powder of solid hydrocarbon and oxygen or the like, and simultaneously carrying out the steel making reaction and gasfication of hydrocarbon in the manufacturing process of steel. CONSTITUTION:Molten iron 1 is continuously fed to a reaction furnace 3 from a flowing trough 17. From a water cooling lance 4 oxygen blowing is done to desiliconize and the powder of iron oxide is added from the lance. Then, from the lance 2 coal powder is injected and added into the molten iron by using transporting gas to decarbonize. From the lance 7 more than a stoichismetrically equivalent amt. of oxygen is blown and if requird, steel chips are added from a feed port 10 of a cooling agent, and steam is blown from the lance 11. The produced slag is transferred to dephosphorization and desulfurization process through an intermediate skimmer 8 and an intermediate skim discharger 9 and oxygen and slag making agent are added from the lance 12 and the feed port 13. The produced gas is taken out through a fuel 15 from an upper part of a slag discharge port 14 and the molten iron which has finished the reaction is taken out from a tapping port 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14546079A JPS5669320A (en) | 1979-11-12 | 1979-11-12 | Continuous preliminary processing of molten iron and gas producing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14546079A JPS5669320A (en) | 1979-11-12 | 1979-11-12 | Continuous preliminary processing of molten iron and gas producing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5669320A true JPS5669320A (en) | 1981-06-10 |
JPS5761804B2 JPS5761804B2 (en) | 1982-12-27 |
Family
ID=15385737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14546079A Granted JPS5669320A (en) | 1979-11-12 | 1979-11-12 | Continuous preliminary processing of molten iron and gas producing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5669320A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60162717A (en) * | 1984-02-04 | 1985-08-24 | Nippon Kokan Kk <Nkk> | Treatment of molten iron |
-
1979
- 1979-11-12 JP JP14546079A patent/JPS5669320A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5761804B2 (en) | 1982-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4324583A (en) | Supersonic injection of oxygen in cupolas | |
GB1448292A (en) | Electric arc furnace and a method of treating molten metal in such a furnace | |
ES8206369A1 (en) | Production of gas in a ferrous- bath-reactor | |
JPS5669320A (en) | Continuous preliminary processing of molten iron and gas producing method | |
US3038795A (en) | Process for smelting and reducing powdered or finely divided ores | |
JP3189096B2 (en) | Method for producing steel in liquid bath and apparatus for carrying out the method | |
US3323905A (en) | Method and apparatus for adding agents for forming and/or treating the slag in iron baths | |
JPS572813A (en) | Production of decarbonized and melted stainless steel | |
US3259484A (en) | Method and apparatus for producing steel from pig iron | |
JPS5757816A (en) | Steel making method by composite top and bottom blown converter | |
JPS5743919A (en) | Method for blow refining in top and/or bottom-blown converter | |
US3511644A (en) | Process for reducing and carburizing melting of metallic material in a rotary furnace | |
ES8600409A1 (en) | Process for the production of steels of low carbon content wherein the carbon end point and blow temperature are controlled | |
US4347079A (en) | Method of operating an open-hearth furnace | |
US2875037A (en) | Method of making bessemer or converter steel | |
US3304172A (en) | Process for the manufacture of low phosphorus pig iron | |
US3583866A (en) | Refining of iron | |
Bogdandy et al. | Production of Gas in a Ferrous-Bath-Reactor | |
JPS56130420A (en) | Refining method of molten iron and molten steel | |
US2803535A (en) | Method of blowing steel melt with oxygen containing gas | |
JPS6468415A (en) | Production of molten stainless steel by smelting reduction | |
JPS6431911A (en) | Iron making method using molten iron trough in blast furnace | |
JPS62188713A (en) | Melt reduction steel making method | |
JPS5798618A (en) | Decarbulizing refining method for molten pig iron that enlarges reserve heat | |
JPS62116712A (en) | Melting and smelting vessel having splash lance |