JPS558457A - Oxygen bottom blasting converter - Google Patents
Oxygen bottom blasting converterInfo
- Publication number
- JPS558457A JPS558457A JP8084378A JP8084378A JPS558457A JP S558457 A JPS558457 A JP S558457A JP 8084378 A JP8084378 A JP 8084378A JP 8084378 A JP8084378 A JP 8084378A JP S558457 A JPS558457 A JP S558457A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- converter
- blasted
- tuyere
- tube
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title 1
- 238000005422 blasting Methods 0.000 title 1
- 229910052760 oxygen Inorganic materials 0.000 title 1
- 239000001301 oxygen Substances 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 4
- 238000007670 refining Methods 0.000 abstract 3
- 238000006477 desulfuration reaction Methods 0.000 abstract 2
- 230000023556 desulfurization Effects 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229910002551 Fe-Mn Inorganic materials 0.000 abstract 1
- 229910017082 Fe-Si Inorganic materials 0.000 abstract 1
- 229910017133 Fe—Si Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000112 cooling gas Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
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
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/48—Bottoms or tuyéres of converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
PURPOSE:To make possible the adjustment, etc., of composition to be freely controlled, and to make possible the improvement of the dephosphorization and desulfurization capacity, by installing the auxiliary tuyere separately from the double tube refining tuyere (hydrocarbon gas for cooling is passed through the outer tube, and O2 gas through the inner tube) installed at the bottom of the converter. CONSTITUTION:When the molten iron in the converter is desulfurized, N2 gas is blasted from the outer tubes 1a, 1b, of the double tube tuyere installed at the bottom of the converter, and the desulfurizer (Fe-Si, Fe-Mn, etc., for instance) together with N2 gas is blasted from the separate auxiliary tuyere 2. Next, at the oxidizing refining process after the slagging off, O2 and CaO from the inner tube 1a, and the cooling gas like as C3H8, etc., from the outer tube 1b, are blasted, and N2 gas is blasted from the auxiliary tuyere 2. According to this method, the desulfurization of the molten iron and the oxidizing refining can be executed in the same furnace; hereby, the labor saving and the cost reduction can be contrived.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53080843A JPS5833290B2 (en) | 1978-07-05 | 1978-07-05 | Oxygen bottom blowing converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53080843A JPS5833290B2 (en) | 1978-07-05 | 1978-07-05 | Oxygen bottom blowing converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS558457A true JPS558457A (en) | 1980-01-22 |
| JPS5833290B2 JPS5833290B2 (en) | 1983-07-19 |
Family
ID=13729630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53080843A Expired JPS5833290B2 (en) | 1978-07-05 | 1978-07-05 | Oxygen bottom blowing converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833290B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441961A (en) * | 1977-09-09 | 1979-04-03 | Toshiba Corp | Sphering of thermoplastic particles |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4966518A (en) * | 1972-08-01 | 1974-06-27 | ||
| JPS50137805A (en) * | 1974-04-11 | 1975-11-01 |
-
1978
- 1978-07-05 JP JP53080843A patent/JPS5833290B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4966518A (en) * | 1972-08-01 | 1974-06-27 | ||
| JPS50137805A (en) * | 1974-04-11 | 1975-11-01 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441961A (en) * | 1977-09-09 | 1979-04-03 | Toshiba Corp | Sphering of thermoplastic particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5833290B2 (en) | 1983-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS55158208A (en) | Refining method of steel | |
| JPS5743919A (en) | Method for blow refining in top and/or bottom-blown converter | |
| JPS5432119A (en) | Refining method for high chromium steel | |
| JPS5629611A (en) | Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron | |
| JPS5665906A (en) | Method of utilizing converter slag for modification of blast furnace slag | |
| JPS55128521A (en) | Converter operating method | |
| JPS5597408A (en) | Dephosphorization and desulfurization of mixed slag of blast furnace and converter | |
| JPS5760004A (en) | Converter refining method | |
| JPS5343019A (en) | Refining method for steel with reduced slag formation | |
| JPS55107715A (en) | Blowing method of dephosphorizer to bottom blowing converter | |
| JPS6487709A (en) | Steelmaking method in converter | |
| JPS5743920A (en) | Method for blow refining in bottom-blown converter | |
| JPS5747807A (en) | Simultaneous dephosphorization and desulfurization method for molten iron | |
| JPS538310A (en) | Reusing method of steel making slag | |
| JPS6154081B2 (en) | ||
| JPS5252108A (en) | Pocess for efining by converter | |
| JPS5550414A (en) | Refining method for molten steel controlling blowing out manganese | |
| JPS5773107A (en) | Method foe improving dephosphorization efficiency of molten iron | |
| JPS57149409A (en) | Refining by top and bottom blowing converter | |
| JPS57155314A (en) | Refining of high-cr steel | |
| JPS5690915A (en) | Desiliconization treatment of molten iron | |
| JPS5475418A (en) | Hot iron dephosphorization method | |
| JPS54130424A (en) | Hot iron desulfurizing method | |
| JPS5792115A (en) | Dephosphorization method for molten iron | |
| JPS5511168A (en) | Refining method for low sulfer steel using bottom-blown converter |