JPS6465211A - Method for estimating deviation in packing state of furnace core solid reducing agent - Google Patents

Method for estimating deviation in packing state of furnace core solid reducing agent

Info

Publication number
JPS6465211A
JPS6465211A JP22099087A JP22099087A JPS6465211A JP S6465211 A JPS6465211 A JP S6465211A JP 22099087 A JP22099087 A JP 22099087A JP 22099087 A JP22099087 A JP 22099087A JP S6465211 A JPS6465211 A JP S6465211A
Authority
JP
Japan
Prior art keywords
coke
furnace
solid reducing
tracer
deviation
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
JP22099087A
Other languages
Japanese (ja)
Other versions
JPH0826368B2 (en
Inventor
Haruhisa Iwakiri
Tsunao Kamijo
Shoken Shimizu
Yoshio Kimura
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP62220990A priority Critical patent/JPH0826368B2/en
Publication of JPS6465211A publication Critical patent/JPS6465211A/en
Publication of JPH0826368B2 publication Critical patent/JPH0826368B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 stabilize the operating condition of a blast furnace by drawing solid reducing agents in the furnace core part from plural points in the circumferential direction of the blast furnace at the time of blowing down and estimating the deviation in the packing state of the furnace core solid reducing agents from the existence ratio of tracer solid reducing agents. CONSTITUTION:Coke is charged to the center of the furnace top by using tracer coke. The core part coke is drawn from the plural points, for example, tuyeres, in the circumferential direction of the blast furnace at the time of blowing down and the existence ratios of the tracer coke are investigated. These existence ratios are compared with the existence ratio of the tracer coke (standard existence ratio) when the flow lines of the axial center charge coke are distributed with good balance, by which the deviation in the flow lines is known and the deviation in the packing state of the furnace core solid reducing agents is estimated. The axial center charge coke is charged to the furnace by controlling the grain size distribution, cold strength, hot strength, etc., thereof in accordance with the results thereof, by which the air permeability and liquid permeability of the furnace core coke layers are controlled as desired. The operating condition of the blast furnace is thereby stabilized and the wear of the furnace bottom refractories is prevented.
JP62220990A 1987-09-03 1987-09-03 A method for estimating the deviation of the filling state of the solid reducing agent layer in the core Expired - Lifetime JPH0826368B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62220990A JPH0826368B2 (en) 1987-09-03 1987-09-03 A method for estimating the deviation of the filling state of the solid reducing agent layer in the core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62220990A JPH0826368B2 (en) 1987-09-03 1987-09-03 A method for estimating the deviation of the filling state of the solid reducing agent layer in the core

Publications (2)

Publication Number Publication Date
JPS6465211A true JPS6465211A (en) 1989-03-10
JPH0826368B2 JPH0826368B2 (en) 1996-03-13

Family

ID=16759742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62220990A Expired - Lifetime JPH0826368B2 (en) 1987-09-03 1987-09-03 A method for estimating the deviation of the filling state of the solid reducing agent layer in the core

Country Status (1)

Country Link
JP (1) JPH0826368B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100424814B1 (en) * 1999-12-08 2004-03-30 주식회사 포스코 A method of judging a inactivity index and flowage at the lower part of blast furnace
CN102912049A (en) * 2012-10-29 2013-02-06 首钢京唐钢铁联合有限责任公司 Method for canceling center coke charging of blast furnace
WO2023021870A1 (en) * 2021-08-17 2023-02-23 Ｊｆｅスチール株式会社 Method for estimating depositional shape of blast furnace filling and method for substituting blast furnace coke

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043410A (en) * 1983-08-15 1985-03-08 Kawasaki Steel Corp Method for operating blast furnace by powder blowing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043410A (en) * 1983-08-15 1985-03-08 Kawasaki Steel Corp Method for operating blast furnace by powder blowing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100424814B1 (en) * 1999-12-08 2004-03-30 주식회사 포스코 A method of judging a inactivity index and flowage at the lower part of blast furnace
CN102912049A (en) * 2012-10-29 2013-02-06 首钢京唐钢铁联合有限责任公司 Method for canceling center coke charging of blast furnace
WO2023021870A1 (en) * 2021-08-17 2023-02-23 Ｊｆｅスチール株式会社 Method for estimating depositional shape of blast furnace filling and method for substituting blast furnace coke
JP2023027519A (en) * 2021-08-17 2023-03-02 Ｊｆｅスチール株式会社 Method for estimating depositional shape of blast furnace filling and method for substituting blast furnace coke

Also Published As

Publication number Publication date
JPH0826368B2 (en) 1996-03-13

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