CA939505A - Method and apparatus for blowing reducing gas into a blast furnace - Google Patents

Method and apparatus for blowing reducing gas into a blast furnace

Info

Publication number
CA939505A
CA939505A CA067,923A CA67923A CA939505A CA 939505 A CA939505 A CA 939505A CA 67923 A CA67923 A CA 67923A CA 939505 A CA939505 A CA 939505A
Authority
CA
Canada
Prior art keywords
blast furnace
reducing gas
blowing reducing
blowing
gas
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.)
Expired
Application number
CA067,923A
Other versions
CA67923S (en
Inventor
Masaaki Iguchi
Kazuo Omori
Yoshiaki Hara
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
Nippon 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
Priority claimed from JP884569A external-priority patent/JPS5234598B1/ja
Priority claimed from JP1286769A external-priority patent/JPS4813203B1/ja
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Application granted granted Critical
Publication of CA939505A publication Critical patent/CA939505A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
CA067,923A 1968-11-20 1969-11-19 Method and apparatus for blowing reducing gas into a blast furnace Expired CA939505A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP8501468 1968-11-20
JP8501368 1968-11-20
JP884569A JPS5234598B1 (en) 1969-02-06 1969-02-06
JP1286769A JPS4813203B1 (en) 1969-02-20 1969-02-20
JP1286869 1969-02-20

Publications (1)

Publication Number Publication Date
CA939505A true CA939505A (en) 1974-01-08

Family

ID=27518985

Family Applications (1)

Application Number Title Priority Date Filing Date
CA067,923A Expired CA939505A (en) 1968-11-20 1969-11-19 Method and apparatus for blowing reducing gas into a blast furnace

Country Status (5)

Country Link
US (1) US3759698A (en)
CA (1) CA939505A (en)
FR (1) FR2023710A1 (en)
GB (1) GB1277606A (en)
NL (1) NL147480B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101519703B (en) * 2008-02-26 2010-12-08 宝山钢铁股份有限公司 Low-coke-ratio blast furnace ironmaking technique

Also Published As

Publication number Publication date
DE1958214A1 (en) 1970-07-30
GB1277606A (en) 1972-06-14
DE1958214B2 (en) 1977-06-30
US3759698A (en) 1973-09-18
NL147480B (en) 1975-10-15
FR2023710A1 (en) 1970-08-21
NL6917494A (en) 1970-05-22

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