JPS5597410A - Furnace cooling method after blast furnace blows out - Google Patents
Furnace cooling method after blast furnace blows outInfo
- Publication number
- JPS5597410A JPS5597410A JP406879A JP406879A JPS5597410A JP S5597410 A JPS5597410 A JP S5597410A JP 406879 A JP406879 A JP 406879A JP 406879 A JP406879 A JP 406879A JP S5597410 A JPS5597410 A JP S5597410A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- pressure
- blast furnace
- steam
- blown
- 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
Landscapes
- Manufacture Of Iron (AREA)
Abstract
PURPOSE: To attain a reduction of blast furnace cooling period by a method wherein, in case of blowing out a blast furnace, steam is blown into a furnace from a tuyere or a slag hole after a temperature of coke replaced with a furnace filling material is lowered to a specific temperature and cooling is forcedly carried out while the furnace pressure is restricted within a limited.
CONSTITUTION: When a blast furnace is blown out, steam 10 is blown into at pressure of 1.5W2kg/cm2 from a tuyere or a slag hole after a temperature of coke replaced with a furnace filling material is lowered to below 500°C. In this case, steam pressure is maintained at 5W10mm H2O higher than an atomospheric pressure by utilizing a pressure equalizing chamber provided in a furnace top 3 for operating a blast furnace at high pressure, a filling apparatus (not designated in a figure) and a septum valve 6 and, while this condition is maintained, forced cooling carried out. Moreover, blowing steam 10 is advanced along an arrow direction from a furnace top 3 and exhausted from a branched pipe 8 through a dust catcher 4, a scrubber 5 and a septum valve 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP406879A JPS5597410A (en) | 1979-01-16 | 1979-01-16 | Furnace cooling method after blast furnace blows out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP406879A JPS5597410A (en) | 1979-01-16 | 1979-01-16 | Furnace cooling method after blast furnace blows out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5597410A true JPS5597410A (en) | 1980-07-24 |
| JPS6115921B2 JPS6115921B2 (en) | 1986-04-26 |
Family
ID=11574498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP406879A Granted JPS5597410A (en) | 1979-01-16 | 1979-01-16 | Furnace cooling method after blast furnace blows out |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5597410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205423A (en) * | 2019-06-27 | 2019-09-06 | 武汉钢铁有限公司 | A kind of method that coal gas damping down is cut in the release of blast furnace low pressure |
-
1979
- 1979-01-16 JP JP406879A patent/JPS5597410A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205423A (en) * | 2019-06-27 | 2019-09-06 | 武汉钢铁有限公司 | A kind of method that coal gas damping down is cut in the release of blast furnace low pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6115921B2 (en) | 1986-04-26 |
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