JPS645081B2 - - Google Patents
Info
- Publication number
- JPS645081B2 JPS645081B2 JP2699085A JP2699085A JPS645081B2 JP S645081 B2 JPS645081 B2 JP S645081B2 JP 2699085 A JP2699085 A JP 2699085A JP 2699085 A JP2699085 A JP 2699085A JP S645081 B2 JPS645081 B2 JP S645081B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- hot metal
- gas
- lance
- slag
- 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
- 239000002184 metal Substances 0.000 claims description 45
- 229910052751 metal Inorganic materials 0.000 claims description 45
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 23
- 229910001882 dioxygen Inorganic materials 0.000 claims description 23
- 239000002893 slag Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 238000003723 Smelting Methods 0.000 claims description 17
- 239000003245 coal Substances 0.000 claims description 14
- 238000007670 refining Methods 0.000 claims description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 8
- 239000004571 lime Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 38
- 239000007789 gas Substances 0.000 description 37
- 238000006722 reduction reaction Methods 0.000 description 24
- 229910052742 iron Inorganic materials 0.000 description 19
- 238000002485 combustion reaction Methods 0.000 description 11
- 238000010079 rubber tapping Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000012256 powdered iron Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
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
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/143—Injection of partially reduced ore into a molten 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
- C21C5/28—Manufacture of steel in the converter
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2699085A JPS61186412A (ja) | 1985-02-14 | 1985-02-14 | 溶融還元製鉄法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2699085A JPS61186412A (ja) | 1985-02-14 | 1985-02-14 | 溶融還元製鉄法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61186412A JPS61186412A (ja) | 1986-08-20 |
| JPS645081B2 true JPS645081B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-01-27 |
Family
ID=12208593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2699085A Granted JPS61186412A (ja) | 1985-02-14 | 1985-02-14 | 溶融還元製鉄法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61186412A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5035599A (en) * | 1988-08-31 | 1991-07-30 | Kabushiki Kaisha Komatsu Seisakusho | Combined injection-molding and pressing machine |
-
1985
- 1985-02-14 JP JP2699085A patent/JPS61186412A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61186412A (ja) | 1986-08-20 |
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