JPS6389429A - 多段階開孔による残銑抜取方法 - Google Patents

多段階開孔による残銑抜取方法

Info

Publication number
JPS6389429A
JPS6389429A JP23448386A JP23448386A JPS6389429A JP S6389429 A JPS6389429 A JP S6389429A JP 23448386 A JP23448386 A JP 23448386A JP 23448386 A JP23448386 A JP 23448386A JP S6389429 A JPS6389429 A JP S6389429A
Authority
JP
Japan
Prior art keywords
diameter
furnace
pig iron
bit
hole
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
JP23448386A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0471015B2 (enrdf_load_stackoverflow
Inventor
Akio Ihara
井原　昭夫
Yasuto Nishida
西田　泰斗
Yoshinobu Oda
小田　吉信
Shiyunji Kuwazuka
鍬塚　峻二
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
Nippon Steel Chemical and Materials Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Chemical Co 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 Nippon Steel Corp, Nippon Steel Chemical Co Ltd filed Critical Nippon Steel Corp
Priority to JP23448386A priority Critical patent/JPS6389429A/ja
Publication of JPS6389429A publication Critical patent/JPS6389429A/ja
Publication of JPH0471015B2 publication Critical patent/JPH0471015B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
JP23448386A 1986-10-03 1986-10-03 多段階開孔による残銑抜取方法 Granted JPS6389429A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23448386A JPS6389429A (ja) 1986-10-03 1986-10-03 多段階開孔による残銑抜取方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23448386A JPS6389429A (ja) 1986-10-03 1986-10-03 多段階開孔による残銑抜取方法

Publications (2)

Publication Number Publication Date
JPS6389429A true JPS6389429A (ja) 1988-04-20
JPH0471015B2 JPH0471015B2 (enrdf_load_stackoverflow) 1992-11-12

Family

ID=16971726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23448386A Granted JPS6389429A (ja) 1986-10-03 1986-10-03 多段階開孔による残銑抜取方法

Country Status (1)

Country Link
JP (1) JPS6389429A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0471015B2 (enrdf_load_stackoverflow) 1992-11-12

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