JPS57123912A - Desiliconization treatment of molten iron and its device - Google Patents
Desiliconization treatment of molten iron and its deviceInfo
- Publication number
- JPS57123912A JPS57123912A JP939281A JP939281A JPS57123912A JP S57123912 A JPS57123912 A JP S57123912A JP 939281 A JP939281 A JP 939281A JP 939281 A JP939281 A JP 939281A JP S57123912 A JPS57123912 A JP S57123912A
- Authority
- JP
- Japan
- Prior art keywords
- molten iron
- desiliconizer
- spout
- steel pipe
- molten
- 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
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To perform desiliconization treatment of molten iron effectively by immersing a steel pipe packed with a desiliconizer in the molten iron flowing in a tapping spout of a blast furnace, melting the steel pipe and adding the desiliconizer therein continuously to the molten iron.
CONSTITUTION: Molten iron HM and molten slag MS discharged through a tap hole 1a of a blast furnace 1 are received in a tapping spout 2, and the molten slag MS is separated with a skimmer 2a through a slag discharge port 2b. Only the molten iron is received in a tilting spout 3 and is fed to a molten iron pan or the like. In a main spout part 20 of the spout 2, a thin-walled steel pipe 11 packed with a desiliconizer consisting essentially of iron oxide, etc. is suspended and its leading end is immersed in the molten iron HM so that the pipe 11 is melted by the heat retained by the molten iron, whereby the desiliconizer in the inside is added directly into the flowing-down molten iron HM and the molten iron is desiliconized. The steel pipe packed with the desiliconizer is produced by forming a skelp of a thin-walled steel plate into a pipe shape in the upper part of the tapping spout and packing the desiliconizer therein at the same time.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP939281A JPS57123912A (en) | 1981-01-23 | 1981-01-23 | Desiliconization treatment of molten iron and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP939281A JPS57123912A (en) | 1981-01-23 | 1981-01-23 | Desiliconization treatment of molten iron and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57123912A true JPS57123912A (en) | 1982-08-02 |
Family
ID=11719157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP939281A Pending JPS57123912A (en) | 1981-01-23 | 1981-01-23 | Desiliconization treatment of molten iron and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57123912A (en) |
-
1981
- 1981-01-23 JP JP939281A patent/JPS57123912A/en active Pending
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