JPS5535837A - Combustion control method by oxygen concentration in polyzone system heating furnace - Google Patents

Combustion control method by oxygen concentration in polyzone system heating furnace

Info

Publication number
JPS5535837A
JPS5535837A JP10875278A JP10875278A JPS5535837A JP S5535837 A JPS5535837 A JP S5535837A JP 10875278 A JP10875278 A JP 10875278A JP 10875278 A JP10875278 A JP 10875278A JP S5535837 A JPS5535837 A JP S5535837A
Authority
JP
Japan
Prior art keywords
oxygen concentration
zone
combustion
zones
excess air
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
Application number
JP10875278A
Other languages
Japanese (ja)
Other versions
JPS6130168B2 (en
Inventor
Kenya Fukushima
Takaaki Nishimura
Shinsuke Masuda
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP10875278A priority Critical patent/JPS5535837A/en
Publication of JPS5535837A publication Critical patent/JPS5535837A/en
Publication of JPS6130168B2 publication Critical patent/JPS6130168B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
    • F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

PURPOSE:To perform the optimum combustion by determining the coefficient of excess air so that the oxygen concentration of each combustion zone is made a fixed objective value on grasping how the exhaust gases of the respective zones interfere each other and propagate to oxygen densitometers of the respective combustion zones every moment. CONSTITUTION:The slab 5 is moved in the direction of the arrow AR from heating zones 2, 3 to uniformly heating zone 1 in the three-zone system heating furnace, exhaust gases produced in the respective combustion zones flow in the opposite direction to the moment of slab and reach the flue 4. In this case, the coefficient of excess air of each combustion zone is made an input, the oxygen concentration of each exhaust gas is previously determined, the oxygen concentration of each zone, fuel flow and air flow are measured. The transfer matrix in above state formula is decided by applying Karman filter to the measured values. Next, the coefficients of excess air mu1-mu3 are determined in accordance with the objective oxygen concentration and the state formula, the burners 6-8 are fired depending on the values.
JP10875278A 1978-09-05 1978-09-05 Combustion control method by oxygen concentration in polyzone system heating furnace Granted JPS5535837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10875278A JPS5535837A (en) 1978-09-05 1978-09-05 Combustion control method by oxygen concentration in polyzone system heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10875278A JPS5535837A (en) 1978-09-05 1978-09-05 Combustion control method by oxygen concentration in polyzone system heating furnace

Publications (2)

Publication Number Publication Date
JPS5535837A true JPS5535837A (en) 1980-03-13
JPS6130168B2 JPS6130168B2 (en) 1986-07-11

Family

ID=14492600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10875278A Granted JPS5535837A (en) 1978-09-05 1978-09-05 Combustion control method by oxygen concentration in polyzone system heating furnace

Country Status (1)

Country Link
JP (1) JPS5535837A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6270251U (en) * 1985-10-14 1987-05-02
JP2007285564A (en) * 2006-04-14 2007-11-01 Nippon Steel Corp Continuous steel material heating furnace and heating method of steel material using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6270251U (en) * 1985-10-14 1987-05-02
JP2007285564A (en) * 2006-04-14 2007-11-01 Nippon Steel Corp Continuous steel material heating furnace and heating method of steel material using the same
JP4653689B2 (en) * 2006-04-14 2011-03-16 新日本製鐵株式会社 Continuous steel heating furnace and method of heating steel using the same

Also Published As

Publication number Publication date
JPS6130168B2 (en) 1986-07-11

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