JPS56112406A - Method for blowing-out operation of blast furnace - Google Patents
Method for blowing-out operation of blast furnaceInfo
- Publication number
- JPS56112406A JPS56112406A JP1506580A JP1506580A JPS56112406A JP S56112406 A JPS56112406 A JP S56112406A JP 1506580 A JP1506580 A JP 1506580A JP 1506580 A JP1506580 A JP 1506580A JP S56112406 A JPS56112406 A JP S56112406A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- blowing
- furnace
- blast furnace
- blast
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/007—Controlling or regulating of the top pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
PURPOSE:To prevent pollution by making blowing-out operation while maintaining a specific furnace top pressure without releasing blast furnace gas to the atmosphere till just before blowing out. CONSTITUTION:The gas generated from a blast furnace 1 is recovered into a gas holder by way of a series of treating devices of an ascending pipe 2, a descending pipe 3, a dry dust remover 4, a wet dust remover 5, and a water sealed valve 6 for preventing backflow of gas. At this time, a feeder of gaseous nitrogen 8 is newly provided, and the blowing-out is carried out while feeding a gaseous nitrogen to the furnace top part via a blast pipe 9 and controlling the furnace top pressure in the range defined by a 0.3-3kg/cm<2>. Therefore, the flow of the gas in the furnace stabilizes and the blast furnace gas is recovered into the gas holder till just before the blowing-out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1506580A JPS56112406A (en) | 1980-02-08 | 1980-02-08 | Method for blowing-out operation of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1506580A JPS56112406A (en) | 1980-02-08 | 1980-02-08 | Method for blowing-out operation of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56112406A true JPS56112406A (en) | 1981-09-04 |
Family
ID=11878433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1506580A Pending JPS56112406A (en) | 1980-02-08 | 1980-02-08 | Method for blowing-out operation of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56112406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537485A (en) * | 2022-09-22 | 2022-12-30 | 北京首钢股份有限公司 | Method for rebuilding water seal of water-cooling airtight box water seal system |
-
1980
- 1980-02-08 JP JP1506580A patent/JPS56112406A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537485A (en) * | 2022-09-22 | 2022-12-30 | 北京首钢股份有限公司 | Method for rebuilding water seal of water-cooling airtight box water seal system |
| CN115537485B (en) * | 2022-09-22 | 2023-11-14 | 北京首钢股份有限公司 | Method for reconstructing water seal of water-cooling airtight box water seal system |
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