JPS56119708A - Blast furnace operating method - Google Patents

Blast furnace operating method

Info

Publication number
JPS56119708A
JPS56119708A JP2144880A JP2144880A JPS56119708A JP S56119708 A JPS56119708 A JP S56119708A JP 2144880 A JP2144880 A JP 2144880A JP 2144880 A JP2144880 A JP 2144880A JP S56119708 A JPS56119708 A JP S56119708A
Authority
JP
Japan
Prior art keywords
pressure
level
charged material
blast furnace
shaft
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
JP2144880A
Other languages
Japanese (ja)
Other versions
JPS5910965B2 (en
Inventor
Mitsuo Yagi
Morimasa Ichida
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 JP55021448A priority Critical patent/JPS5910965B2/en
Publication of JPS56119708A publication Critical patent/JPS56119708A/en
Publication of JPS5910965B2 publication Critical patent/JPS5910965B2/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)

Abstract

PURPOSE:To accurately detect the level of charged material and detect the circumferential balances of melt-stuck zones by directions in the level reducing process by monitoring the reducing level by the signals from the plural pressure sensors of the number of installation increased toward downward between a blast furnace shaft and a bosh. CONSTITUTION:The disposition of the above-described pressure sensors is set in >=2 positions, for example, in 4 positions, at a 2m pitch from the upper stage of the shaft down to the middle stage, a 1m pitch from the middle state of the shaft down to the lower stage and 0.5m from the lower stage of the shaft down to the bosh, respectively. The level of raw charged material is accurately detected from the pressure drop values obtained from the pressure information of these pressure sensors and the stable blast furnace level reducing operation is carried out. Namely, when the raw charged material drops down to the pressure gage B from the state that it exists between the pressure gages A-B, the pressure values shown by the pressure gages A and B show approximately the same values, and the pressure drops between A-B are approximately zero. Hence, this point is regarded that the raw charged material has passed the point B, thus the burden level is detected accurately.
JP55021448A 1980-02-22 1980-02-22 Blast furnace operation method Expired JPS5910965B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55021448A JPS5910965B2 (en) 1980-02-22 1980-02-22 Blast furnace operation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55021448A JPS5910965B2 (en) 1980-02-22 1980-02-22 Blast furnace operation method

Publications (2)

Publication Number Publication Date
JPS56119708A true JPS56119708A (en) 1981-09-19
JPS5910965B2 JPS5910965B2 (en) 1984-03-13

Family

ID=12055237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55021448A Expired JPS5910965B2 (en) 1980-02-22 1980-02-22 Blast furnace operation method

Country Status (1)

Country Link
JP (1) JPS5910965B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05271728A (en) * 1992-03-25 1993-10-19 Nkk Corp Method for preventing blowby in blast furnace
KR101185300B1 (en) 2011-01-28 2012-09-21 현대제철 주식회사 Method for estimating position bordered to furnace wall of softening zone
KR101412403B1 (en) * 2012-07-30 2014-06-25 현대제철 주식회사 Dropping judgment method of charging material into blast furnace

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021175A (en) * 1983-07-15 1985-02-02 Sintokogio Ltd Method for controlling automatic pouring by sectorial ladle
JPS61195859U (en) * 1985-05-22 1986-12-06

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5160620A (en) * 1974-11-25 1976-05-26 Nippon Steel Corp KORORONAIJOKYOKENCHIHOHO
JPS54141304A (en) * 1978-04-27 1979-11-02 Nippon Kokan Kk <Nkk> Detecting method for level of charged material in blast furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5160620A (en) * 1974-11-25 1976-05-26 Nippon Steel Corp KORORONAIJOKYOKENCHIHOHO
JPS54141304A (en) * 1978-04-27 1979-11-02 Nippon Kokan Kk <Nkk> Detecting method for level of charged material in blast furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05271728A (en) * 1992-03-25 1993-10-19 Nkk Corp Method for preventing blowby in blast furnace
KR101185300B1 (en) 2011-01-28 2012-09-21 현대제철 주식회사 Method for estimating position bordered to furnace wall of softening zone
KR101412403B1 (en) * 2012-07-30 2014-06-25 현대제철 주식회사 Dropping judgment method of charging material into blast furnace

Also Published As

Publication number Publication date
JPS5910965B2 (en) 1984-03-13

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