JPH0438807B2 - - Google Patents
Info
- Publication number
- JPH0438807B2 JPH0438807B2 JP22974387A JP22974387A JPH0438807B2 JP H0438807 B2 JPH0438807 B2 JP H0438807B2 JP 22974387 A JP22974387 A JP 22974387A JP 22974387 A JP22974387 A JP 22974387A JP H0438807 B2 JPH0438807 B2 JP H0438807B2
- Authority
- JP
- Japan
- Prior art keywords
- lance
- hot metal
- carrier gas
- gutter
- pretreatment agent
- 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 67
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- 239000012159 carrier gas Substances 0.000 claims description 19
- 238000002203 pretreatment Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22974387A JPS6473011A (en) | 1987-09-16 | 1987-09-16 | Method for pretreating molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22974387A JPS6473011A (en) | 1987-09-16 | 1987-09-16 | Method for pretreating molten iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6473011A JPS6473011A (en) | 1989-03-17 |
| JPH0438807B2 true JPH0438807B2 (enrdf_load_stackoverflow) | 1992-06-25 |
Family
ID=16896988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22974387A Granted JPS6473011A (en) | 1987-09-16 | 1987-09-16 | Method for pretreating molten iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6473011A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100518756B1 (ko) * | 2001-12-26 | 2005-10-06 | 주식회사 포스코 | 탈황제 분사에 사용되는 벤추리형 랜스 노즐 |
| JP5223228B2 (ja) * | 2007-04-17 | 2013-06-26 | Ｊｆｅスチール株式会社 | 溶銑の脱珪処理方法 |
-
1987
- 1987-09-16 JP JP22974387A patent/JPS6473011A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6473011A (en) | 1989-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |