JPS54128909A - Heating method for slab by burner at nose part of heating furnace - Google Patents
Heating method for slab by burner at nose part of heating furnaceInfo
- Publication number
- JPS54128909A JPS54128909A JP3770578A JP3770578A JPS54128909A JP S54128909 A JPS54128909 A JP S54128909A JP 3770578 A JP3770578 A JP 3770578A JP 3770578 A JP3770578 A JP 3770578A JP S54128909 A JPS54128909 A JP S54128909A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- heating
- burner
- zone
- bottom side
- 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
Landscapes
- Tunnel Furnaces (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
PURPOSE: To save the consumption of heating fuel so as to be less than that of the conventional method, by heating the slab so as to compensate the temperature drop of the slab at the nose part of the heating furnace, and the temperature drop of the bottom part of the sabl in the rolling process.
CONSTITUTION: The slab 9 is charged from A of the pusher type five zoned heating furnace 1, for instance, and is passed through the preheating zone 4, the heating zone 7, the soaking zone 8; hereupon, burners 16, 17, are arranged in the nose part 13 between the heating zone 7 and the soaking zone 8. The top side of the slab 9 is placed as shwon by 14, and the bottom side as shwon by 15, and the slab 9 is moved from B in the arrowed direction. The angle of injection of burners 16, 17, are respectively 15°, and 30°, and besides, are directed downward about 6° inclining from the horizontal plane, as shown in the illustration. As a result, the injection from the burner 16 is directed against the bottom side 15 of the slab 9, and the injection from the burner 17 is directed against nearby the middle part of the slab 9. Therefore, the slab 9 is concentratedly heated up from the middle part to the bottom 15 by this composite heating. Hereby, the temperature of the bottom side 15 becomes 20W30°C higher than the top side 14, which compensates the local temperature drop at the bottom side 15 in the next rolling process.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53037705A JPS5839206B2 (en) | 1978-03-31 | 1978-03-31 | Slab heating method using a burner at the nose of a heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53037705A JPS5839206B2 (en) | 1978-03-31 | 1978-03-31 | Slab heating method using a burner at the nose of a heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54128909A true JPS54128909A (en) | 1979-10-05 |
| JPS5839206B2 JPS5839206B2 (en) | 1983-08-29 |
Family
ID=12504932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53037705A Expired JPS5839206B2 (en) | 1978-03-31 | 1978-03-31 | Slab heating method using a burner at the nose of a heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839206B2 (en) |
-
1978
- 1978-03-31 JP JP53037705A patent/JPS5839206B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5839206B2 (en) | 1983-08-29 |
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