JPS5785920A - Method for controlling waste gas of converter - Google Patents
Method for controlling waste gas of converterInfo
- Publication number
- JPS5785920A JPS5785920A JP16056380A JP16056380A JPS5785920A JP S5785920 A JPS5785920 A JP S5785920A JP 16056380 A JP16056380 A JP 16056380A JP 16056380 A JP16056380 A JP 16056380A JP S5785920 A JPS5785920 A JP S5785920A
- Authority
- JP
- Japan
- Prior art keywords
- furnace port
- waste gas
- operator
- suction rate
- flow rate
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
PURPOSE:To recover unburned waste gases with good efficiency by operating the suction rate of a furnace port from the waste gas composition by a waste gas analyzer, the waste gas flow rate by a flowmeter, the furnace port pressure by a pressure detector, and the skirt height by a thickness gage, and controlling a waste gas flow rate control valve by the deviation signal between the operated quantity and a target value. CONSTITUTION:A furnace port pressure is detected continuously with a pressure detector 5, a waste gas flow rate with a flowmeter 13, a waste gas composition with an analyzer 7 and a skirt height with a thickness gage 3, and these detection signals are inputted to an operator 16 which operates and corrects the coefft. of the equation for estimation of the suction rate of the furnace port at every constant time. At the same time, from the detection signals of the furnace port pressure and the skirt height, an operator 17 determines the suction rate of the furnace port by the equation for extimation of the suction rate of the furnace port. The deviation between the suction rate of the furnace port and a target suction rate of the furnace port is determined with an operator 18, and the deviation signal thereof is inputted to an operator 20 which outpus to an electrohydraulic controller 12 via an operator 21. The controller 12 operates a control valve 11, thereby controlling the flow rate of waste gases so as to make the deviation value zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16056380A JPS5785920A (en) | 1980-11-14 | 1980-11-14 | Method for controlling waste gas of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16056380A JPS5785920A (en) | 1980-11-14 | 1980-11-14 | Method for controlling waste gas of converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5785920A true JPS5785920A (en) | 1982-05-28 |
| JPS6215607B2 JPS6215607B2 (en) | 1987-04-08 |
Family
ID=15717683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16056380A Granted JPS5785920A (en) | 1980-11-14 | 1980-11-14 | Method for controlling waste gas of converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5785920A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007171096A (en) * | 2005-12-26 | 2007-07-05 | Fuji Electric Systems Co Ltd | Method of detecting error in skirt position detector of converter exhaust gas treatment device, and method of controlling correction of skirt position when error is detected |
| JP2021080506A (en) * | 2019-11-15 | 2021-05-27 | Ｊｆｅスチール株式会社 | Skirt position monitoring and abnormality detection device for converter exhaust gas treatment device, skirt position monitoring method, and skirt position abnormality detection method by the monitoring method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141509A (en) * | 1979-04-18 | 1980-11-05 | Nippon Steel Corp | Gas pressure control system in hood in converter waste gas treating apparatus |
-
1980
- 1980-11-14 JP JP16056380A patent/JPS5785920A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141509A (en) * | 1979-04-18 | 1980-11-05 | Nippon Steel Corp | Gas pressure control system in hood in converter waste gas treating apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007171096A (en) * | 2005-12-26 | 2007-07-05 | Fuji Electric Systems Co Ltd | Method of detecting error in skirt position detector of converter exhaust gas treatment device, and method of controlling correction of skirt position when error is detected |
| JP2021080506A (en) * | 2019-11-15 | 2021-05-27 | Ｊｆｅスチール株式会社 | Skirt position monitoring and abnormality detection device for converter exhaust gas treatment device, skirt position monitoring method, and skirt position abnormality detection method by the monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6215607B2 (en) | 1987-04-08 |
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