JPS56116809A - Operation of blast furnace - Google Patents

Operation of blast furnace

Info

Publication number
JPS56116809A
JPS56116809A JP1973080A JP1973080A JPS56116809A JP S56116809 A JPS56116809 A JP S56116809A JP 1973080 A JP1973080 A JP 1973080A JP 1973080 A JP1973080 A JP 1973080A JP S56116809 A JPS56116809 A JP S56116809A
Authority
JP
Japan
Prior art keywords
level
amount
charged
burden
coke
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
JP1973080A
Other languages
Japanese (ja)
Other versions
JPS5748605B2 (en
Inventor
Shigenori Uno
Yasushi Shiotani
Mitsuo Kamata
Nobuo Ishioka
Mitsuo Yagi
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 JP1973080A priority Critical patent/JPS56116809A/en
Publication of JPS56116809A publication Critical patent/JPS56116809A/en
Publication of JPS5748605B2 publication Critical patent/JPS5748605B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge

Landscapes

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

Abstract

PURPOSE:To adequately adjust blast heating corresponding to the change in input/ output of heat in the furnace, in a low burden-level operation, by deviding the amount of coke properly, corresponding to the lowered level; most parts being charged at low burden level time, the remaining part at leveling up time. CONSTITUTION:A low burden-level operation is performed while comparing and monitoring the operational data with the past data and enable to change the level in the range to the bosh. The exessive coke amount is set to the amount of coke required to compensate for the calory contained in the burden which is reduced by lowered level and increased space and for the increased calory dissipation by the furnace body, not considering the compensation for the calory due to disturbance such as slip, blowing-through, or deposit dropping. The required coke amount is about 30-60% of the amount that considers external disturbance. At low burden- level, about 70-90% of the total is charged, the remaining 30-10% is charged a leveling up time. At the low burden-level time, the range from the shaft to the bosh is devided into two sections, for example; about 60-80% of the low-level burden amount is charged into the first section and the remaining, about 40-20% is charged into the next section.
JP1973080A 1980-02-21 1980-02-21 Operation of blast furnace Granted JPS56116809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1973080A JPS56116809A (en) 1980-02-21 1980-02-21 Operation of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973080A JPS56116809A (en) 1980-02-21 1980-02-21 Operation of blast furnace

Publications (2)

Publication Number Publication Date
JPS56116809A true JPS56116809A (en) 1981-09-12
JPS5748605B2 JPS5748605B2 (en) 1982-10-16

Family

ID=12007423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1973080A Granted JPS56116809A (en) 1980-02-21 1980-02-21 Operation of blast furnace

Country Status (1)

Country Link
JP (1) JPS56116809A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021179A (en) * 2010-07-12 2012-02-02 Nippon Steel Corp Method for starting blast furnace after resting blowing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7369573B2 (en) 2019-09-13 2023-10-26 信越石英株式会社 Method for manufacturing reflective members and glass laminated members

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021179A (en) * 2010-07-12 2012-02-02 Nippon Steel Corp Method for starting blast furnace after resting blowing

Also Published As

Publication number Publication date
JPS5748605B2 (en) 1982-10-16

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