JPS56136905A - Coal blast furnace iron making method - Google Patents

Coal blast furnace iron making method

Info

Publication number
JPS56136905A
JPS56136905A JP3897580A JP3897580A JPS56136905A JP S56136905 A JPS56136905 A JP S56136905A JP 3897580 A JP3897580 A JP 3897580A JP 3897580 A JP3897580 A JP 3897580A JP S56136905 A JPS56136905 A JP S56136905A
Authority
JP
Japan
Prior art keywords
furnace
coal
bituminous coal
blast
pressure
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
JP3897580A
Other languages
Japanese (ja)
Other versions
JPS5748607B2 (en
Inventor
Yoshiro Mizutani
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 TOKUSHIYU GIJUTSU KENKY
NIPPON TOKUSHU GIJUTSU KENKYUSHO KK
Original Assignee
NIPPON TOKUSHIYU GIJUTSU KENKY
NIPPON TOKUSHU GIJUTSU KENKYUSHO KK
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 TOKUSHIYU GIJUTSU KENKY, NIPPON TOKUSHU GIJUTSU KENKYUSHO KK filed Critical NIPPON TOKUSHIYU GIJUTSU KENKY
Priority to JP3897580A priority Critical patent/JPS56136905A/en
Publication of JPS56136905A publication Critical patent/JPS56136905A/en
Publication of JPS5748607B2 publication Critical patent/JPS5748607B2/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
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • C21B5/004—Injection of slurries

Abstract

PURPOSE:To make effective use of bituminous coal by charging iron oxide, a slag making agent and bituminous coal from the top of an extra-high-pressure blast furnace having a prescribed furnace top pressure and blowing grained coal, gaseous fuel and liquid fuel together with hot blast from the lower tuyeres. CONSTITUTION:Iron oxide, a slag making agent and chiefly bituminous coal as carbon for reducing are charged from the top 1 of an extra-high-pressure blast furnace of which the standard furnace top pressure is 3.0kg/cm<2>, into the furnace through a charging bell 7 alternately in the laminar state, and are packed from a hearth 5 up to the stock line 8 of a shaft 2. The hot blast sent from the annular pipe 10 of a blower via a branch 11 and a bend 12 is intimately mixed with the grained coal, gaseous fuel and liquid fuel which are sent through a fuel blow pipe 15, either in a blast injection pipe 13 or a tuyere 14, and these are blown into the furnace. Thereby, the bituminous coal is used effectively.
JP3897580A 1980-03-28 1980-03-28 Coal blast furnace iron making method Granted JPS56136905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3897580A JPS56136905A (en) 1980-03-28 1980-03-28 Coal blast furnace iron making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3897580A JPS56136905A (en) 1980-03-28 1980-03-28 Coal blast furnace iron making method

Publications (2)

Publication Number Publication Date
JPS56136905A true JPS56136905A (en) 1981-10-26
JPS5748607B2 JPS5748607B2 (en) 1982-10-16

Family

ID=12540148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3897580A Granted JPS56136905A (en) 1980-03-28 1980-03-28 Coal blast furnace iron making method

Country Status (1)

Country Link
JP (1) JPS56136905A (en)

Also Published As

Publication number Publication date
JPS5748607B2 (en) 1982-10-16

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