JPS54149938A - Inverse-l type combustion of air heating furnace - Google Patents
Inverse-l type combustion of air heating furnaceInfo
- Publication number
- JPS54149938A JPS54149938A JP5752378A JP5752378A JPS54149938A JP S54149938 A JPS54149938 A JP S54149938A JP 5752378 A JP5752378 A JP 5752378A JP 5752378 A JP5752378 A JP 5752378A JP S54149938 A JPS54149938 A JP S54149938A
- Authority
- JP
- Japan
- Prior art keywords
- supply rate
- temperature
- setting
- change
- combustion
- 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)
- Feeding And Controlling Fuel (AREA)
Abstract
PURPOSE: For improving heat accumulation efficiency, raising the temperature of air feed and increasing gas supply rate, to change the setting of the supply rate of said combustion gas at each of the former and later halves of combustion period.
CONSTITUTION: The combustion gas supply rate of a hot stove for blast furnaces is set at a low value i.e. 70 W 90% of the mean value (100%) of the high values thereof, and at a high value i.e. 110 W 130% of said mean value, at the former and later halves respectively of combustion period. The timing of this change-over is controlled by using the difference between the setting and the past results particularly preceding time's and the difference between the setting and the past results of the temperature of waste gas for furnace change-over as control factors. Thereby, the curve of the temperature rise of said waste gas at the lower section of a heat accumulating chamber dulled. Thus, gas supply rate can be increased, heat efficiency can be improved, and the temperature of air feed can be raised to 10 - 20°C.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5752378A JPS54149938A (en) | 1978-05-17 | 1978-05-17 | Inverse-l type combustion of air heating furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5752378A JPS54149938A (en) | 1978-05-17 | 1978-05-17 | Inverse-l type combustion of air heating furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54149938A true JPS54149938A (en) | 1979-11-24 |
Family
ID=13058092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5752378A Pending JPS54149938A (en) | 1978-05-17 | 1978-05-17 | Inverse-l type combustion of air heating furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54149938A (en) |
-
1978
- 1978-05-17 JP JP5752378A patent/JPS54149938A/en active Pending
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