JPS648208A - Production of molten metal from powdery ore - Google Patents

Production of molten metal from powdery ore

Info

Publication number
JPS648208A
JPS648208A JP62163730A JP16373087A JPS648208A JP S648208 A JPS648208 A JP S648208A JP 62163730 A JP62163730 A JP 62163730A JP 16373087 A JP16373087 A JP 16373087A JP S648208 A JPS648208 A JP S648208A
Authority
JP
Japan
Prior art keywords
supplying
molten metal
temp
lower step
carbonic material
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
JP62163730A
Other languages
Japanese (ja)
Inventor
Hiroshi Itaya
Eiji Katayama
Takashi Ushijima
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 JP62163730A priority Critical patent/JPS648208A/en
Priority to DE87114305T priority patent/DE3787017T2/en
Priority to CA000548243A priority patent/CA1337743C/en
Priority to EP87114305A priority patent/EP0297167B1/en
Priority to KR1019870010960A priority patent/KR950005786B1/en
Priority to BR8705045A priority patent/BR8705045A/en
Publication of JPS648208A publication Critical patent/JPS648208A/en
Priority to AU52595/90A priority patent/AU627563B2/en
Priority to US07/518,333 priority patent/US5131942A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • 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
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To maintain quality of a product and to stabilize the operation by supplying carboneceous solid reduction material to a vertical type smelting reduction furnace separately from the upper and the lower step tuyeres and controlling temp. and composition of molten metal by adjusting the distributing ratio. CONSTITUTION:The carbonic material is supplied into the vertical type smelting reduction furnace 1 from a carbonic material supplying hole 16 at upper part and high temp. oxygen-contained gas is blown to the upper step tuyere 6 and the lower step tuyere 7 from piping 9 for supplying oxygen-contained gas through a distributor 8, to form a carbonic material fluidized layer 2 and a carbonic material packed layer 3. On the other hand, powdery ore is supplied together with oxygen-contained gas from the upper step tuyere 6 through an ore supplying pipe 14, to execute reduction. Dust containing many carbon in exhaust gas is collected with a dust collector 10 for high temp. arranging to a duct 15 and distributed with a dust distributor 11 and supplied respectively into the upper and lower step tuyeres 6, 7. By this constitution, by adjusting the carbonic material quantity supplying from the lower step tuyere 7 with the distributor 11 in accordance with temp. of the produced molten metal 5, the temp. and/or composition of the molten metal 5 is controlled.
JP62163730A 1987-06-30 1987-06-30 Production of molten metal from powdery ore Pending JPS648208A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP62163730A JPS648208A (en) 1987-06-30 1987-06-30 Production of molten metal from powdery ore
DE87114305T DE3787017T2 (en) 1987-06-30 1987-09-30 Method and device for producing liquid metal from ore particles.
CA000548243A CA1337743C (en) 1987-06-30 1987-09-30 Method and apparatus for producing molten metal from powder state ore
EP87114305A EP0297167B1 (en) 1987-06-30 1987-09-30 Method and apparatus for producing molten metal from powder state ore
KR1019870010960A KR950005786B1 (en) 1987-06-30 1987-09-30 Method and apparatus for producing molten metal from powder ore
BR8705045A BR8705045A (en) 1987-06-30 1987-09-30 OVEN AND PROCESS FOR THE PRODUCTION OF METAL IN MELTING FROM SPRAYED ORE
AU52595/90A AU627563B2 (en) 1987-06-30 1990-04-04 Method and apparatus for producing molten metal from powder state ore
US07/518,333 US5131942A (en) 1987-06-30 1990-05-04 Method for producing molten metal from powder state ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62163730A JPS648208A (en) 1987-06-30 1987-06-30 Production of molten metal from powdery ore

Publications (1)

Publication Number Publication Date
JPS648208A true JPS648208A (en) 1989-01-12

Family

ID=15779575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62163730A Pending JPS648208A (en) 1987-06-30 1987-06-30 Production of molten metal from powdery ore

Country Status (1)

Country Link
JP (1) JPS648208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100690135B1 (en) * 1999-10-15 2007-03-08 테크놀라지칼 리소시스 피티와이. 리미티드. Process for producing molten metal from metal feed material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100690135B1 (en) * 1999-10-15 2007-03-08 테크놀라지칼 리소시스 피티와이. 리미티드. Process for producing molten metal from metal feed material

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