JPS5457416A - Melting and reducing method for iron oxide - Google Patents

Melting and reducing method for iron oxide

Info

Publication number
JPS5457416A
JPS5457416A JP12432877A JP12432877A JPS5457416A JP S5457416 A JPS5457416 A JP S5457416A JP 12432877 A JP12432877 A JP 12432877A JP 12432877 A JP12432877 A JP 12432877A JP S5457416 A JPS5457416 A JP S5457416A
Authority
JP
Japan
Prior art keywords
furnace
iron
pellets
oxide
burner
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
JP12432877A
Other languages
Japanese (ja)
Inventor
Hiroyuki Katayama
Masae Ishibashi
Hirobumi Wakimoto
Hiroyuki Kajioka
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 JP12432877A priority Critical patent/JPS5457416A/en
Publication of JPS5457416A publication Critical patent/JPS5457416A/en
Pending 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Manufacture Of Iron (AREA)

Abstract

PURPOSE: To economically manufactre hot iron without using a blast furnace by melting and reduxing reduced iron pellets, in a melt-reduction furnace using a burner flame as the main heat source, in which more than 12% of Fe contained is left in the form of its oxide.
CONSTITUTION: Iron oxide pellets 4 made of lumpy iron ore, fine iron ore dust, etc. are charged into rotary kiln 3 and brought into countercurrent contact with a hot reducing gas from melt-reducing furnace 5 connected to the end of kiln 3. Thus, pellets 4 are subjected to solid phase reduciton with the gas and fed to furnace 5 while leaving more than 12% of Fe contained in the form of its oxide. In furnace 5, fuel such as heavy oil, natural gas or dust coal is burned by burner 9 with pure oxygen. At the same time, a reducing agent such as coke is added and the amt. of oxygen supplied from burner 9 is controlled, thereby economically manufacturing hot iron without over-reduction
COPYRIGHT: (C)1979,JPO&Japio
JP12432877A 1977-10-17 1977-10-17 Melting and reducing method for iron oxide Pending JPS5457416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12432877A JPS5457416A (en) 1977-10-17 1977-10-17 Melting and reducing method for iron oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12432877A JPS5457416A (en) 1977-10-17 1977-10-17 Melting and reducing method for iron oxide

Publications (1)

Publication Number Publication Date
JPS5457416A true JPS5457416A (en) 1979-05-09

Family

ID=14882610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12432877A Pending JPS5457416A (en) 1977-10-17 1977-10-17 Melting and reducing method for iron oxide

Country Status (1)

Country Link
JP (1) JPS5457416A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100584735B1 (en) * 2001-10-11 2006-05-30 주식회사 포스코 Melt gasifier of corex facilities having coal dust injection device
JP2006328519A (en) * 2005-05-30 2006-12-07 Daido Steel Co Ltd Method for producing steel
CN103397127A (en) * 2013-07-28 2013-11-20 张英华 Smelting reduction ironmaking device and ironmaking method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100584735B1 (en) * 2001-10-11 2006-05-30 주식회사 포스코 Melt gasifier of corex facilities having coal dust injection device
JP2006328519A (en) * 2005-05-30 2006-12-07 Daido Steel Co Ltd Method for producing steel
CN103397127A (en) * 2013-07-28 2013-11-20 张英华 Smelting reduction ironmaking device and ironmaking method
CN103397127B (en) * 2013-07-28 2014-12-10 张英华 Smelting reduction ironmaking device and ironmaking method

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