JPS54127806A - Blast furnace operation - Google Patents

Blast furnace operation

Info

Publication number
JPS54127806A
JPS54127806A JP3578278A JP3578278A JPS54127806A JP S54127806 A JPS54127806 A JP S54127806A JP 3578278 A JP3578278 A JP 3578278A JP 3578278 A JP3578278 A JP 3578278A JP S54127806 A JPS54127806 A JP S54127806A
Authority
JP
Japan
Prior art keywords
soft
estimate
location
melt zone
measured
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.)
Pending
Application number
JP3578278A
Other languages
Japanese (ja)
Inventor
Michiharu Hatano
Koichi Kurita
Hideyuki Yamaoka
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP3578278A priority Critical patent/JPS54127806A/en
Publication of JPS54127806A publication Critical patent/JPS54127806A/en
Pending 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
    • C21B5/006—Automatically controlling the process

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:In a blast furnace, wall pressures are measured at soft-melt position and its upper and lower positions, and the measured pressure are compared to estimate the location of the soft-melt zone. Such location and a high temperature furnace model are used to estimate the distribution of the soft-melt zone and to determine the limit of blast quantity for stable furnace operation. CONSTITUTION:In a blast furnace, wall pressures are measured at soft-melt position which is poorly drafted, and at its upper and lower positions. The measured pressures are used to estimate the location of the soft-melt zone by using the pressure-loss formula. Such location is used with average cross sectional soft-melt zone obtained by blast furnace heat model, thereby to estimate the distribution of the soft-melt zone and to determine the locations where the blow-through and shelf- hang are likely to occure. Thus, the process provides an accurate instruction for limiting draft quantity, contributing to an increased output, reduced furnace troubles and stable operation.
JP3578278A 1978-03-27 1978-03-27 Blast furnace operation Pending JPS54127806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3578278A JPS54127806A (en) 1978-03-27 1978-03-27 Blast furnace operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3578278A JPS54127806A (en) 1978-03-27 1978-03-27 Blast furnace operation

Publications (1)

Publication Number Publication Date
JPS54127806A true JPS54127806A (en) 1979-10-04

Family

ID=12451460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3578278A Pending JPS54127806A (en) 1978-03-27 1978-03-27 Blast furnace operation

Country Status (1)

Country Link
JP (1) JPS54127806A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003193120A (en) * 2001-12-28 2003-07-09 Nippon Steel Corp Method and apparatus for monitoring operation in blast furnace, computer program and computer readable storage medium
CN108315514A (en) * 2018-02-09 2018-07-24 武汉钢铁有限公司 Blast furnace opening loading method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003193120A (en) * 2001-12-28 2003-07-09 Nippon Steel Corp Method and apparatus for monitoring operation in blast furnace, computer program and computer readable storage medium
CN108315514A (en) * 2018-02-09 2018-07-24 武汉钢铁有限公司 Blast furnace opening loading method
CN108315514B (en) * 2018-02-09 2019-12-31 武汉钢铁有限公司 Blast furnace blow-in charging method

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