JPS55122811A - Combustion control method of hot stove - Google Patents
Combustion control method of hot stoveInfo
- Publication number
- JPS55122811A JPS55122811A JP2837479A JP2837479A JPS55122811A JP S55122811 A JPS55122811 A JP S55122811A JP 2837479 A JP2837479 A JP 2837479A JP 2837479 A JP2837479 A JP 2837479A JP S55122811 A JPS55122811 A JP S55122811A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- air
- flow rate
- calculating device
- waste gas
- 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
- Regulation And Control Of Combustion (AREA)
- Control Of Combustion (AREA)
Abstract
PURPOSE: To blow air at specified temperature stably into a blast furnace and stabilize the operating conditions of the blast furnace and Si content in molten iron, by securely controlling the amount of heat accumulation in the regenerator in hot stove for blast furnace.
CONSTITUTION: A combustion initial air quantity calculating device 59 calculates the air quantity in the initial period t0 from combustion gas quantity set value 64 and air/fuel ratio set value, and applies the value to a combustion air quantity regulating valve ABV. At the same time, a fuel gas flow rate calculating device 54 calculates the gas quantity in the initial period t0, and applies the signal to a combustion gas quantity regulating valve GBV, so that combustion is started in a combustion chamber 10. A detector 56 monitors the waste gas temperature, and predicts the waste gas temperature Ti at the end t3 of combustion. By the output Ti of a waste gas temperature calculating device 57, a reducing air flow rate calculating device 58 computes the air flow rate to be reduced from the difference from a target temperature 65Ts, and controls the valve ABV through a switch 62. At this time, the gas flow rate varies, following up so that the air/fuel ratio may be kept constant. This operation is repeated by a proper number of times during combustion period, and the final waste gas temperature reaches the target temperature Ts of about 350°C.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2837479A JPS55122811A (en) | 1979-03-12 | 1979-03-12 | Combustion control method of hot stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2837479A JPS55122811A (en) | 1979-03-12 | 1979-03-12 | Combustion control method of hot stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55122811A true JPS55122811A (en) | 1980-09-20 |
Family
ID=12246846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2837479A Pending JPS55122811A (en) | 1979-03-12 | 1979-03-12 | Combustion control method of hot stove |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55122811A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147817A (en) * | 1984-01-13 | 1985-08-03 | Yokogawa Hokushin Electric Corp | Method for controlling exhaust gas temperature of hot stove |
| KR20010061662A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Method for controlling temperature of a hot blower for a furnace |
| KR100496823B1 (en) * | 2000-12-26 | 2005-06-22 | 주식회사 포스코 | A temperature control method of hot blast stoves in a blast furnace |
| KR100804230B1 (en) * | 2001-10-31 | 2008-02-18 | 주식회사 포스코 | Blast furnace hot furnace combustion control method |
| KR100973887B1 (en) | 2003-05-27 | 2010-08-03 | 주식회사 포스코 | How to control combustion in hot stove |
| CN110699502A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢集团自动化有限公司 | Method for high-precision prediction of gas consumption of blast furnace hot blast stove |
| CN112410490A (en) * | 2020-11-20 | 2021-02-26 | 马鞍山钢铁股份有限公司 | Front reaction type constant temperature automatic burning technology for hot-blast stove |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515206A (en) * | 1974-07-04 | 1976-01-16 | Kawasaki Steel Co | Koroyonetsupurono nenshokiniokeru haigasuondono seigyohoho |
-
1979
- 1979-03-12 JP JP2837479A patent/JPS55122811A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515206A (en) * | 1974-07-04 | 1976-01-16 | Kawasaki Steel Co | Koroyonetsupurono nenshokiniokeru haigasuondono seigyohoho |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147817A (en) * | 1984-01-13 | 1985-08-03 | Yokogawa Hokushin Electric Corp | Method for controlling exhaust gas temperature of hot stove |
| KR20010061662A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | Method for controlling temperature of a hot blower for a furnace |
| KR100496823B1 (en) * | 2000-12-26 | 2005-06-22 | 주식회사 포스코 | A temperature control method of hot blast stoves in a blast furnace |
| KR100804230B1 (en) * | 2001-10-31 | 2008-02-18 | 주식회사 포스코 | Blast furnace hot furnace combustion control method |
| KR100973887B1 (en) | 2003-05-27 | 2010-08-03 | 주식회사 포스코 | How to control combustion in hot stove |
| CN110699502A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢集团自动化有限公司 | Method for high-precision prediction of gas consumption of blast furnace hot blast stove |
| CN112410490A (en) * | 2020-11-20 | 2021-02-26 | 马鞍山钢铁股份有限公司 | Front reaction type constant temperature automatic burning technology for hot-blast stove |
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