JPS5633405A - Blast furnace operation method - Google Patents

Blast furnace operation method

Info

Publication number
JPS5633405A
JPS5633405A JP10787379A JP10787379A JPS5633405A JP S5633405 A JPS5633405 A JP S5633405A JP 10787379 A JP10787379 A JP 10787379A JP 10787379 A JP10787379 A JP 10787379A JP S5633405 A JPS5633405 A JP S5633405A
Authority
JP
Japan
Prior art keywords
softened
blast furnace
temperature
molten zone
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.)
Granted
Application number
JP10787379A
Other languages
Japanese (ja)
Other versions
JPS6040482B2 (en
Inventor
Hiroshi Itaya
Matao Araya
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP10787379A priority Critical patent/JPS6040482B2/en
Publication of JPS5633405A publication Critical patent/JPS5633405A/en
Publication of JPS6040482B2 publication Critical patent/JPS6040482B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To plan for blast furnace operation to be stabilized and more efficient by controlling the pattern of softened and molten zone through measuring and grasping the isothermal distribution of the softened and molten zone within a predetermined temperature range in a blast furnace. CONSTITUTION:In blast furnace operation, a gas sampler is provided direct above the surface of charge and temperature in the direction of the furnace radius and gas distribution of Co, Co2, H2 and N2 etc. are measured. From these values and the operation condition, the pattern of the softened and molten zone and the position thereof are determined quantitatively at the level of the isothermal line distribution of 1,400 deg.C of the charge. Let the height of 1,400 deg.C position from the tuyere level at the center of furnace be Am, the minimum height of isothermal line from the tuyere level be Bm and the radius of furnace bottom be Rh. When the temperature of cokes entering tuyere edge is 75% of the theoretical combustion temperature thereof, a calculated theoretical temperature is Tad. The softened and molten zone is so controlled that equation I and II obtained from them may be satisfied. This enables to carry out stable and efficient operation.
JP10787379A 1979-08-23 1979-08-23 How to operate a blast furnace Expired JPS6040482B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10787379A JPS6040482B2 (en) 1979-08-23 1979-08-23 How to operate a blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10787379A JPS6040482B2 (en) 1979-08-23 1979-08-23 How to operate a blast furnace

Publications (2)

Publication Number Publication Date
JPS5633405A true JPS5633405A (en) 1981-04-03
JPS6040482B2 JPS6040482B2 (en) 1985-09-11

Family

ID=14470245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10787379A Expired JPS6040482B2 (en) 1979-08-23 1979-08-23 How to operate a blast furnace

Country Status (1)

Country Link
JP (1) JPS6040482B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009228046A (en) * 2008-03-21 2009-10-08 Kobe Steel Ltd Method for operating blast furnace
CN112342327A (en) * 2020-10-09 2021-02-09 攀钢集团研究院有限公司 Vanadium titano-magnetite blast furnace smelting method based on theoretical combustion temperature control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009228046A (en) * 2008-03-21 2009-10-08 Kobe Steel Ltd Method for operating blast furnace
CN112342327A (en) * 2020-10-09 2021-02-09 攀钢集团研究院有限公司 Vanadium titano-magnetite blast furnace smelting method based on theoretical combustion temperature control

Also Published As

Publication number Publication date
JPS6040482B2 (en) 1985-09-11

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