JPS5669312A - External air draught method at banking of blast furnace - Google Patents

External air draught method at banking of blast furnace

Info

Publication number
JPS5669312A
JPS5669312A JP14563179A JP14563179A JPS5669312A JP S5669312 A JPS5669312 A JP S5669312A JP 14563179 A JP14563179 A JP 14563179A JP 14563179 A JP14563179 A JP 14563179A JP S5669312 A JPS5669312 A JP S5669312A
Authority
JP
Japan
Prior art keywords
furnace
banking
external air
blast
blast furnace
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
JP14563179A
Other languages
Japanese (ja)
Other versions
JPS5748601B2 (en
Inventor
Kenichi Sato
Shinichi Shibusawa
Kenji Mori
Katsuyuki Norimatsu
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 JP14563179A priority Critical patent/JPS5669312A/en
Publication of JPS5669312A publication Critical patent/JPS5669312A/en
Publication of JPS5748601B2 publication Critical patent/JPS5748601B2/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

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 eliminate the risk such as blowing-out of contents in the furnace or gas explosion in the furnace after banking of the blast furnace by preliminarily sucking external air immediately before the banking of the blast furnace and naturally sucking the external air after the banking of the furnace. CONSTITUTION:Immediately before the end of the reducing blowing-out operation of the blast furnace 8, a blow-off valve 1 is entirely opened to enable external air to be sucked and introduced. Thereafter, after banking of the furnace, from the blow off valve 1 through a blast piping such as a main blast pipe 2 and a branch pipe 4, a natural draught into the furnace 8 is performed. Thus, even immediately after the banking, required amount of oxygen is ensured, carbon monoxide or hydrogen is not detected but an adequate natural combustion in furnace can be carried out. Therefore, a safety banking of furnace having no risk such as the blowing-out of contents of the blast furnace or the gas explosion is performed.
JP14563179A 1979-11-09 1979-11-09 External air draught method at banking of blast furnace Granted JPS5669312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14563179A JPS5669312A (en) 1979-11-09 1979-11-09 External air draught method at banking of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14563179A JPS5669312A (en) 1979-11-09 1979-11-09 External air draught method at banking of blast furnace

Publications (2)

Publication Number Publication Date
JPS5669312A true JPS5669312A (en) 1981-06-10
JPS5748601B2 JPS5748601B2 (en) 1982-10-16

Family

ID=15389465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14563179A Granted JPS5669312A (en) 1979-11-09 1979-11-09 External air draught method at banking of blast furnace

Country Status (1)

Country Link
JP (1) JPS5669312A (en)

Also Published As

Publication number Publication date
JPS5748601B2 (en) 1982-10-16

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