JPS6473015A - Vacuum circulating degassing apparatus - Google Patents
Vacuum circulating degassing apparatusInfo
- Publication number
- JPS6473015A JPS6473015A JP22978887A JP22978887A JPS6473015A JP S6473015 A JPS6473015 A JP S6473015A JP 22978887 A JP22978887 A JP 22978887A JP 22978887 A JP22978887 A JP 22978887A JP S6473015 A JPS6473015 A JP S6473015A
- Authority
- JP
- Japan
- Prior art keywords
- ladle
- tube
- molten steel
- lance
- vessel
- 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.)
- Pending
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE:To extend the service life of refractory without directly hitting oxygen to the side wall of a vessel by inserting a lance having the prescribed construction in a ladle and blowing oxygen and inert gas into the molten steel uptake tube of the vacuum degassing vessel arranged at the upper part of a ladle. CONSTITUTION:This vacuum circulating degassing apparatus is formed by a vacuum degassing vessel 21, ladle 22 and a lance 23 for blowing oxygen, which is bent to U-shape at end part and has double pipe nozzle construction at inner part. The above vessel 21 is provided with a molten steel uptake tube 24 and molten steel downtake tube 25. Further, in the above ladle 22, the uptake tube 24 and downtake tube 25 are inserted. Then, at the time of raising the heat of the molten steel, the above lance 23 is inserted from the upper part of the ladle 22 to the position facing the lower end of the uptake tube 24 and oxygen from the inside passage of the nozzle and inert gas from the outside passage are blown in the uptake tube 24.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22978887A JPS6473015A (en) | 1987-09-16 | 1987-09-16 | Vacuum circulating degassing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22978887A JPS6473015A (en) | 1987-09-16 | 1987-09-16 | Vacuum circulating degassing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473015A true JPS6473015A (en) | 1989-03-17 |
Family
ID=16897683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22978887A Pending JPS6473015A (en) | 1987-09-16 | 1987-09-16 | Vacuum circulating degassing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473015A (en) |
-
1987
- 1987-09-16 JP JP22978887A patent/JPS6473015A/en active Pending
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