JPS5782425A - Method for control of combustion of heating furnace - Google Patents

Method for control of combustion of heating furnace

Info

Publication number
JPS5782425A
JPS5782425A JP15825580A JP15825580A JPS5782425A JP S5782425 A JPS5782425 A JP S5782425A JP 15825580 A JP15825580 A JP 15825580A JP 15825580 A JP15825580 A JP 15825580A JP S5782425 A JPS5782425 A JP S5782425A
Authority
JP
Japan
Prior art keywords
temp
furnace
heating
billets
flow rate
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
JP15825580A
Other languages
Japanese (ja)
Inventor
Shinya Tanifuji
Yasuo Morooka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15825580A priority Critical patent/JPS5782425A/en
Publication of JPS5782425A publication Critical patent/JPS5782425A/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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Control Of Combustion (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To make the stable operation of a heating furnace possible by deciding elevation of the heating levels of respective zones from the temp. elevation patterns of billets and heating state and directly controlling the flow rate of fuel in heating billets. CONSTITUTION:Billets 2 in a heating furnace 1 are heated with a burner 3, and a billet temp. detecting part 101 calculates the billet temp. changes of the present and after a constant time by using the furnace temp. detected with a furnace temp. detecting gage 7, and estimates billet temps. A temp. elevation pattern operating part 102 determines the optimum billet temp. elevation pattern according to furnace operation conditions. A heating state decision part 103 is inputted from the part 101 and the part 102 and calculates the indices for deciding whether the heating state of the billets in the respective zones of the furnace is good or not. A set value calculating part 104 is inputted with the evaluation losses after a constant time, and calculates the correction rates for the flow rates of fuel in the respective zones corresponding to these. The set values determined by these are outputted to a flow rate controller 6, and if the openings of a flow rate controlling valve 5 are determined, the occurrence of an abrupt change in the flow rate is prevented.
JP15825580A 1980-11-12 1980-11-12 Method for control of combustion of heating furnace Pending JPS5782425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15825580A JPS5782425A (en) 1980-11-12 1980-11-12 Method for control of combustion of heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15825580A JPS5782425A (en) 1980-11-12 1980-11-12 Method for control of combustion of heating furnace

Publications (1)

Publication Number Publication Date
JPS5782425A true JPS5782425A (en) 1982-05-22

Family

ID=15667624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15825580A Pending JPS5782425A (en) 1980-11-12 1980-11-12 Method for control of combustion of heating furnace

Country Status (1)

Country Link
JP (1) JPS5782425A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969805A (en) * 1982-10-14 1984-04-20 Mitsubishi Heavy Ind Ltd Device for controlling forecasting monitor
JPS61201302A (en) * 1985-03-04 1986-09-06 Kawasaki Steel Corp Induction heating device
JP2009249712A (en) * 2008-04-09 2009-10-29 Nippon Steel Corp Apparatus, system, method and program for controlling temperature in heating furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5969805A (en) * 1982-10-14 1984-04-20 Mitsubishi Heavy Ind Ltd Device for controlling forecasting monitor
JPS61201302A (en) * 1985-03-04 1986-09-06 Kawasaki Steel Corp Induction heating device
JP2009249712A (en) * 2008-04-09 2009-10-29 Nippon Steel Corp Apparatus, system, method and program for controlling temperature in heating furnace

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