JPS5623216A - Recovery control method of converter exhaust gas - Google Patents
Recovery control method of converter exhaust gasInfo
- Publication number
- JPS5623216A JPS5623216A JP9880479A JP9880479A JPS5623216A JP S5623216 A JPS5623216 A JP S5623216A JP 9880479 A JP9880479 A JP 9880479A JP 9880479 A JP9880479 A JP 9880479A JP S5623216 A JPS5623216 A JP S5623216A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- fan
- fluctuating components
- frequency fluctuating
- revolutions
- 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
- 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
- C21C5/40—Offtakes or separating apparatus for converter 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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
PURPOSE:To save the electric energy used by a fan in a recovery apparatus by detecting the fluctuations in in-furnace pressure at the recovering of converter exhaust gas, separating the same to high frequency fluctuating components and low frequency fluctuating components and controlling the flow rate of the exhaust gas by respectively separate devices. CONSTITUTION:The CO-contg. exhaust gas emitting from the converter is purified in a primary dust collector 20 and a secondary dust collector 30 and is taken out with a fan 7. At this time, the in-furnace pressure fluctuations A by the exhaust gas are detected with a fine differential pressure transmitter 2 and are separated to low frequency fluctuating components B and high frequency fluctuating components C by a filter 4. The low frequency fluctuating components B passed through the filter 4 are amplified by an amplifier 5 and are inputted to a control unit 6, by the output whereof the number of revolutions of the fan 7 is controlled in response to the fluctuating frequencies. On the other hand, the high frequency fluctuating components C are amplified by an amplifier 10, and are inputted to a ring slit element opening control unit 11 which in turn controls the opening of the ring slit element 31 of the secondary dust collector 3 by a piston 12 to control the high frequency fluctuating components which cannot be responded by the revolutions of the fan 7; hence, the revolutions of the fan 7 become proper and the wasteful consumption of electric energy owing to wasteful revolutions is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9880479A JPS5623216A (en) | 1979-08-01 | 1979-08-01 | Recovery control method of converter exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9880479A JPS5623216A (en) | 1979-08-01 | 1979-08-01 | Recovery control method of converter exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5623216A true JPS5623216A (en) | 1981-03-05 |
Family
ID=14229522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9880479A Pending JPS5623216A (en) | 1979-08-01 | 1979-08-01 | Recovery control method of converter exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5623216A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894133A (en) * | 1981-11-28 | 1983-06-04 | Hitachi Condenser Co Ltd | Manufacturing equipment of magnetic recording medium |
| CN102978331A (en) * | 2012-12-04 | 2013-03-20 | 中冶赛迪工程技术股份有限公司 | Control method for improving gas recovery of new OG (Oxygen Converter Gas Recovery) converter |
| CN107604124A (en) * | 2017-10-20 | 2018-01-19 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of converter mouth differential pressure adjusting means and method with fuzzy Prediction compensation |
| CN107703869A (en) * | 2017-10-19 | 2018-02-16 | 泉州市天龙环境工程有限公司 | A kind of control system and its control method for air separator of oxygenerator |
| CN112524962A (en) * | 2020-08-20 | 2021-03-19 | 云南江磷集团股份有限公司 | Yellow phosphorus electric furnace tail gas recovery and purification process |
-
1979
- 1979-08-01 JP JP9880479A patent/JPS5623216A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5894133A (en) * | 1981-11-28 | 1983-06-04 | Hitachi Condenser Co Ltd | Manufacturing equipment of magnetic recording medium |
| CN102978331A (en) * | 2012-12-04 | 2013-03-20 | 中冶赛迪工程技术股份有限公司 | Control method for improving gas recovery of new OG (Oxygen Converter Gas Recovery) converter |
| CN107703869A (en) * | 2017-10-19 | 2018-02-16 | 泉州市天龙环境工程有限公司 | A kind of control system and its control method for air separator of oxygenerator |
| CN107703869B (en) * | 2017-10-19 | 2023-12-15 | 泉州市天龙环境工程有限公司 | Control system for organic waste gas recovery device and control method thereof |
| CN107604124A (en) * | 2017-10-20 | 2018-01-19 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of converter mouth differential pressure adjusting means and method with fuzzy Prediction compensation |
| CN112524962A (en) * | 2020-08-20 | 2021-03-19 | 云南江磷集团股份有限公司 | Yellow phosphorus electric furnace tail gas recovery and purification process |
| CN112524962B (en) * | 2020-08-20 | 2022-08-02 | 云南江磷集团股份有限公司 | Yellow phosphorus electric furnace tail gas recovery and purification process |
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