JPS5394208A - Operating method for continuous heating furnace for steel material - Google Patents
Operating method for continuous heating furnace for steel materialInfo
- Publication number
- JPS5394208A JPS5394208A JP783377A JP783377A JPS5394208A JP S5394208 A JPS5394208 A JP S5394208A JP 783377 A JP783377 A JP 783377A JP 783377 A JP783377 A JP 783377A JP S5394208 A JPS5394208 A JP S5394208A
- Authority
- JP
- Japan
- Prior art keywords
- combustion
- waste gas
- blast hole
- steel material
- blown
- 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
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
PURPOSE: To make the thickness of the boundary layer formed on the upper and lower surfaces of the steel material disappear or decrease and to increase the quantity of convective heat transfer in the preheating zone, by blowing a part of the preheated air for combustion or a part of the waste gas from combustion into the prede heated air or the waste gas from combustion aiming at the upper surface of the steel billet 5 supported on the skid pipes 14 in the furnace, the blast hole 15 made of refractories is provided at the side wall 19. From this blast hole 15, the preheated air to be used at the soaking zone and heating zone is blown in passing through the flow rate control valve 18 and the blast pipe 16. With the similar equipment, the preheated air, etc. is blown in to the lower surface of the steel billet 5. Or, by using the diffuser to which the duct of the waste gas is connected, the waste gas rom combustion is blown in from the blast hole 15. Further, this blast hole 15 is provided also at the ceiling, the furnace bottom, etc. With this operating method, the boundary layer developing on the surface of the steel material can be made to disappear or its thickness can be decreased and the quantity of convective heat transfer increases, so that the fuel can be saved.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP783377A JPS5394208A (en) | 1977-01-28 | 1977-01-28 | Operating method for continuous heating furnace for steel material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP783377A JPS5394208A (en) | 1977-01-28 | 1977-01-28 | Operating method for continuous heating furnace for steel material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5394208A true JPS5394208A (en) | 1978-08-18 |
Family
ID=11676595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP783377A Pending JPS5394208A (en) | 1977-01-28 | 1977-01-28 | Operating method for continuous heating furnace for steel material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5394208A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5178719A (en) * | 1974-12-30 | 1976-07-08 | Kawasaki Heavy Ind Ltd | KANETSUSOCHI |
-
1977
- 1977-01-28 JP JP783377A patent/JPS5394208A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5178719A (en) * | 1974-12-30 | 1976-07-08 | Kawasaki Heavy Ind Ltd | KANETSUSOCHI |
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