JPS5625914A - Control method of top pressure of blast furnace - Google Patents
Control method of top pressure of blast furnaceInfo
- Publication number
- JPS5625914A JPS5625914A JP10263379A JP10263379A JPS5625914A JP S5625914 A JPS5625914 A JP S5625914A JP 10263379 A JP10263379 A JP 10263379A JP 10263379 A JP10263379 A JP 10263379A JP S5625914 A JPS5625914 A JP S5625914A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- controlling
- opening
- controlling valve
- 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
Abstract
PURPOSE: To secure the pressure loss of the controlling valve of the pressure controlling device for a blast furnace and control top pressure stably by controlling the opening of the controlling valve by means of the gavanor valve in the front of the gas turbine.
CONSTITUTION: Opening conditions of the controlling valve of second dust collector (pressure controlling device) 8 are detected in upper and lower setting device 27 by opening signal 26 from opening ocillator 25 and, when opening value reaches the upper limit of the control range, output 28 from upper and lower setting device 27 is entered in the driving device of gavanor valve 10. Governor valve 10 is opened, reducing the front pressure of the turbine. Only when the quantity of gas is increased, the difference between the front pressure of gas turbine 12 and the top pressure is decreased and, as the result, the opening of the controlling valve is increased, governor valve 10 is opened, so that the front pressure of the turbine is reduced and differential pressure is applied to the front and back of second dust collector 8 to make it possible to control pressure by means of the controlling valve. Thus, if the required pressure loss is applied to the controlling valve, the top pressure can be controlled stably by the top pressure controlling valve.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10263379A JPS5625914A (en) | 1979-08-10 | 1979-08-10 | Control method of top pressure of blast furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10263379A JPS5625914A (en) | 1979-08-10 | 1979-08-10 | Control method of top pressure of blast furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5625914A true JPS5625914A (en) | 1981-03-12 |
Family
ID=14332634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10263379A Pending JPS5625914A (en) | 1979-08-10 | 1979-08-10 | Control method of top pressure of blast furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5625914A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104075582A (en) * | 2014-07-09 | 2014-10-01 | 苏州博能炉窑科技有限公司 | Novel furnace chamber pressure control device |
-
1979
- 1979-08-10 JP JP10263379A patent/JPS5625914A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104075582A (en) * | 2014-07-09 | 2014-10-01 | 苏州博能炉窑科技有限公司 | Novel furnace chamber pressure control device |
CN104075582B (en) * | 2014-07-09 | 2015-10-21 | 苏州博能炉窑科技有限公司 | A kind of Novel furnace cavity pressure control device |
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