JPS57210908A - Modifying method for blast furnace gas utilizing desulfurization treatment for molten iron - Google Patents

Modifying method for blast furnace gas utilizing desulfurization treatment for molten iron

Info

Publication number
JPS57210908A
JPS57210908A JP9450581A JP9450581A JPS57210908A JP S57210908 A JPS57210908 A JP S57210908A JP 9450581 A JP9450581 A JP 9450581A JP 9450581 A JP9450581 A JP 9450581A JP S57210908 A JPS57210908 A JP S57210908A
Authority
JP
Japan
Prior art keywords
blast furnace
molten iron
gases
waste gas
modified
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
JP9450581A
Other languages
Japanese (ja)
Inventor
Hitoshi Morishita
Sumio Yamada
Fumio Sudo
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP9450581A priority Critical patent/JPS57210908A/en
Publication of JPS57210908A publication Critical patent/JPS57210908A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE:To recover blast furnace gases as modified blast furnace gses of high quantity o heat contg. much CO by utilizing said gases as a carrier gas for desulfurizing agents in desulphurization treatment for molten iron. CONSTITUTION:In desulphurization treatment for molten iron 5 in a mixer car 4, a vertically movable skirt 3 provided in the lower part of a waste gas recovering duct 2 is beforehand lowered to shut off waste gas line and the outside in order to prevent the secondary combuson of waste gas by included air. When desulphurizing agents are blown through a lance 1 with blast furnace gases as a carrier gas, the blast furnace gases are modified as the CO2 therein reacts with the C of the molten iron during floating, and said gases are recovered as modified blast furnace gases of high quantity of heat contg. much CO. The atmosphere in the duct 2 is substituted with N2 at around the time when this is going to be executed.
JP9450581A 1981-06-18 1981-06-18 Modifying method for blast furnace gas utilizing desulfurization treatment for molten iron Pending JPS57210908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9450581A JPS57210908A (en) 1981-06-18 1981-06-18 Modifying method for blast furnace gas utilizing desulfurization treatment for molten iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9450581A JPS57210908A (en) 1981-06-18 1981-06-18 Modifying method for blast furnace gas utilizing desulfurization treatment for molten iron

Publications (1)

Publication Number Publication Date
JPS57210908A true JPS57210908A (en) 1982-12-24

Family

ID=14112167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9450581A Pending JPS57210908A (en) 1981-06-18 1981-06-18 Modifying method for blast furnace gas utilizing desulfurization treatment for molten iron

Country Status (1)

Country Link
JP (1) JPS57210908A (en)

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