JPS5638430A - Combustion control for walking beam type heating furnace - Google Patents

Combustion control for walking beam type heating furnace

Info

Publication number
JPS5638430A
JPS5638430A JP11487079A JP11487079A JPS5638430A JP S5638430 A JPS5638430 A JP S5638430A JP 11487079 A JP11487079 A JP 11487079A JP 11487079 A JP11487079 A JP 11487079A JP S5638430 A JPS5638430 A JP S5638430A
Authority
JP
Japan
Prior art keywords
combustion
furnace
extent
temperature
heating furnace
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
JP11487079A
Other languages
Japanese (ja)
Inventor
Yukinaga Katahashi
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP11487079A priority Critical patent/JPS5638430A/en
Publication of JPS5638430A publication Critical patent/JPS5638430A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments

Abstract

PURPOSE:To lessen the variation in the extent of combustion and the temperature of exhaust gas for raising the thermal eficiency of combustion by calculating in advance the combustion extent in each combustion control zone inside a heating furnace according to the moving condition, etc., of slats inside the furnace and controlling the combustion, stepwise. CONSTITUTION:In a walking beam type heating furnace having dirided trucks, the temperature of the furnace 1 is detected by the thermocouple 5 for each combustion control zone and the put in the temperature indicator 9 to monitor the temperature of the furnace. On the other hand, the extent of the combustion is beforehand calculated by the computer 10 on the basis of the thermal hysteresis of the slab and the moving condition of the slab inside the furnace, and the calculated value is put from the computer 10 into the fuel flow rate regulator 7. And, the extent of combustion is controlled by changing stepwise the combustion extent by each of the burners 4 for every control zone. Thus, the average temperature of exhaust gas cen be lowered. This method can be also applied to walking hearth furnace likewise.
JP11487079A 1979-09-07 1979-09-07 Combustion control for walking beam type heating furnace Pending JPS5638430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11487079A JPS5638430A (en) 1979-09-07 1979-09-07 Combustion control for walking beam type heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11487079A JPS5638430A (en) 1979-09-07 1979-09-07 Combustion control for walking beam type heating furnace

Publications (1)

Publication Number Publication Date
JPS5638430A true JPS5638430A (en) 1981-04-13

Family

ID=14648742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11487079A Pending JPS5638430A (en) 1979-09-07 1979-09-07 Combustion control for walking beam type heating furnace

Country Status (1)

Country Link
JP (1) JPS5638430A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3744319A1 (en) * 1986-12-27 1988-07-07 Nissan Motor VARIABLE POWER STEERING SYSTEM
DE3744351A1 (en) * 1986-12-27 1988-07-07 Nissan Motor POWER STEERING WITH VARIABLE STEERING SUPPORT
US4771841A (en) * 1986-09-30 1988-09-20 Nissan Motor Co., Ltd. Variable power assist steering system for vehicle
US4830131A (en) * 1987-01-30 1989-05-16 Nissan Motor Co., Ltd. Variable assist power steering system
US4844126A (en) * 1987-01-30 1989-07-04 Nissan Motor Co., Ltd. Rotary control valve for power assist steering system
US4846296A (en) * 1987-01-30 1989-07-11 Nissan Motor Co., Ltd. Hydraulic fluid pressure control system for use with power assist steering
US4852462A (en) * 1987-01-30 1989-08-01 Nissan Motor Co., Ltd. Operating noise-free fluid flow distributor circuit for variable assist power steering system
US4860846A (en) * 1986-12-27 1989-08-29 Nissan Motor Co., Ltd. Vehicle speed responsive variable assist power steering system
US4875542A (en) * 1987-06-29 1989-10-24 Nissan Motor Co., Ltd. Hydraulic system for variable assist power steering system
US5038878A (en) * 1988-10-28 1991-08-13 Nissan Motor Co., Ltd. Variable assist power steering apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771841A (en) * 1986-09-30 1988-09-20 Nissan Motor Co., Ltd. Variable power assist steering system for vehicle
DE3744319A1 (en) * 1986-12-27 1988-07-07 Nissan Motor VARIABLE POWER STEERING SYSTEM
DE3744351A1 (en) * 1986-12-27 1988-07-07 Nissan Motor POWER STEERING WITH VARIABLE STEERING SUPPORT
US4860846A (en) * 1986-12-27 1989-08-29 Nissan Motor Co., Ltd. Vehicle speed responsive variable assist power steering system
US4865147A (en) * 1986-12-27 1989-09-12 Nissan Motor Company, Limited Hydraulic fluid circuit for variable assist power steering system
US4958695A (en) * 1986-12-27 1990-09-25 Nissan Motor Company, Limited Variable assist power steering system
US4830131A (en) * 1987-01-30 1989-05-16 Nissan Motor Co., Ltd. Variable assist power steering system
US4844126A (en) * 1987-01-30 1989-07-04 Nissan Motor Co., Ltd. Rotary control valve for power assist steering system
US4846296A (en) * 1987-01-30 1989-07-11 Nissan Motor Co., Ltd. Hydraulic fluid pressure control system for use with power assist steering
US4852462A (en) * 1987-01-30 1989-08-01 Nissan Motor Co., Ltd. Operating noise-free fluid flow distributor circuit for variable assist power steering system
US4875542A (en) * 1987-06-29 1989-10-24 Nissan Motor Co., Ltd. Hydraulic system for variable assist power steering system
US5038878A (en) * 1988-10-28 1991-08-13 Nissan Motor Co., Ltd. Variable assist power steering apparatus

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