JPS5394208A - Operating method for continuous heating furnace for steel material - Google Patents

Operating method for continuous heating furnace for steel material

Info

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
Application number
JP783377A
Other languages
Japanese (ja)
Inventor
Tsugumichi Kono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP783377A priority Critical patent/JPS5394208A/en
Publication of JPS5394208A publication Critical patent/JPS5394208A/en
Pending legal-status Critical Current

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
JP783377A 1977-01-28 1977-01-28 Operating method for continuous heating furnace for steel material Pending JPS5394208A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178719A (en) * 1974-12-30 1976-07-08 Kawasaki Heavy Ind Ltd KANETSUSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178719A (en) * 1974-12-30 1976-07-08 Kawasaki Heavy Ind Ltd KANETSUSOCHI

Similar Documents

Publication Publication Date Title
EP0035550B1 (en) Process for combustion of wood fuel and furnace and boiler system for carrying out said process
JPS57192215A (en) Metal-heating oven
ES8305482A1 (en) Method and system for controlling multi-zone reheating furnaces.
JPS5394208A (en) Operating method for continuous heating furnace for steel material
JPS5732321A (en) Metal heating furnace
US2563683A (en) Gas burner for soaking pit furnaces and the like
JPS57110624A (en) Method for controlling combustion of continuous annealing furnace
ATE72319T1 (en) BOILER AND METHOD OF OPERATING THE BOILER.
JPS56149513A (en) Combustion controlling method for heat equipment
JPS54128440A (en) Directly firing type non-oxidation furnace
US4921422A (en) Method for controlling the preheating zone of a tunnel kiln
JPS5798586A (en) Method for heating combustion chamber during hot stacking and replacing operation of coke oven
SU1680774A1 (en) Method for drying and warming up air heater having filled nozzle
SU775131A1 (en) Air-heater of blast furnace
SU135092A1 (en) Device for heating gases and air with a suspended bed
JPS57143445A (en) Slab heating method for soaking pit
BR9911570A (en) Combustor
JPS5579811A (en) Controlling method for temperature in front of tuyere of blast furnace
SU787481A1 (en) Blast furnace air heater
JPS6132592B2 (en)
SU811050A1 (en) Blast furnace air-duct apparatus
JPS5613440A (en) Continuous heating furnace with preheating throat
JPS5595005A (en) Radiator for industrial furnace
JPS5776198A (en) Control of terperature of material in heating furnace
JPS5487610A (en) Cooling method of heavy oil burner for blast furnaces