JPS648214A - Steel making method in converter - Google Patents

Steel making method in converter

Info

Publication number
JPS648214A
JPS648214A JP16187487A JP16187487A JPS648214A JP S648214 A JPS648214 A JP S648214A JP 16187487 A JP16187487 A JP 16187487A JP 16187487 A JP16187487 A JP 16187487A JP S648214 A JPS648214 A JP S648214A
Authority
JP
Japan
Prior art keywords
molten
iron
converter
molten iron
exclusive
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
JP16187487A
Other languages
Japanese (ja)
Other versions
JPH0478686B2 (en
Inventor
Kazumasa Umezawa
Yuji Kawachi
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
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP16187487A priority Critical patent/JPS648214A/en
Publication of JPS648214A publication Critical patent/JPS648214A/en
Publication of JPH0478686B2 publication Critical patent/JPH0478686B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • Y02P10/20—Recycling

Landscapes

  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

PURPOSE:To shorten melting treatment time and to improve yield of molten iron by treating solid iron-contained cold material in an exclusive melting converter to make high carbon molten iron, remaining the necessary quantities of molten iron and molten slag to use the next melting and treating the remained quantity in a refining exclusive use converter. CONSTITUTION:The solid iron-contained cold material 8 of scrap, etc., lime stone 13 are charged into the exclusive melting converter 1 containing the seed molten metal 7 and the molten slag 12, and carbonic material, oxygen from tuyere 3 and oxygen from a lance 2 are supplied, and the scrap, etc., is carbonized and melted, while preventing spattering of iron dust with the molten slag 12. This operation is executed at several times and the prescribed quantity of high carbon molten iron is obtd. and then, the necessary quantity of the molten iron is left as the seed molten iron 7 and the remained part is tapped into a ladle 9 and the molten slag 12 is left in the converter 1 without any slag-off to use the next heat. The high carbon molten iron tapped in the ladle 9 is charged into the exclusive refining converter 4 and carbon dioxide gas is introduced from the tuyere 6 to stir the molten iron, and the oxygen is supplied from the top blowing lance 5 to execute decarbonization and refine into the molten steel having the necessary composition and tap off to the ladle 10.
JP16187487A 1987-06-29 1987-06-29 Steel making method in converter Granted JPS648214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16187487A JPS648214A (en) 1987-06-29 1987-06-29 Steel making method in converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16187487A JPS648214A (en) 1987-06-29 1987-06-29 Steel making method in converter

Publications (2)

Publication Number Publication Date
JPS648214A true JPS648214A (en) 1989-01-12
JPH0478686B2 JPH0478686B2 (en) 1992-12-11

Family

ID=15743617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16187487A Granted JPS648214A (en) 1987-06-29 1987-06-29 Steel making method in converter

Country Status (1)

Country Link
JP (1) JPS648214A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011038142A (en) * 2009-08-10 2011-02-24 Jfe Steel Corp Converter steelmaking method with the use of large quantity of iron scrap
JP2013082997A (en) * 2011-09-28 2013-05-09 Jfe Steel Corp Converter steelmaking method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174812A (en) * 1984-02-16 1985-09-09 Kawasaki Steel Corp Converter steel making method using large amount of ferrous cold charge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174812A (en) * 1984-02-16 1985-09-09 Kawasaki Steel Corp Converter steel making method using large amount of ferrous cold charge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011038142A (en) * 2009-08-10 2011-02-24 Jfe Steel Corp Converter steelmaking method with the use of large quantity of iron scrap
JP2013082997A (en) * 2011-09-28 2013-05-09 Jfe Steel Corp Converter steelmaking method

Also Published As

Publication number Publication date
JPH0478686B2 (en) 1992-12-11

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