JPS5776114A - Direct reduction type steel processing - Google Patents

Direct reduction type steel processing

Info

Publication number
JPS5776114A
JPS5776114A JP56027954A JP2795481A JPS5776114A JP S5776114 A JPS5776114 A JP S5776114A JP 56027954 A JP56027954 A JP 56027954A JP 2795481 A JP2795481 A JP 2795481A JP S5776114 A JPS5776114 A JP S5776114A
Authority
JP
Japan
Prior art keywords
reduction
gas
exhaust gas
reformer
furnace
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
JP56027954A
Other languages
Japanese (ja)
Inventor
Mamoru Aoki
Masahiro Tomita
Hironobu Sako
Dentaro Kaneko
Yoshitomo Ishii
Katsunori Shimazaki
Kazuya Soga
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP56027954A priority Critical patent/JPS5776114A/en
Publication of JPS5776114A publication Critical patent/JPS5776114A/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]
    • 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

Abstract

PURPOSE: To reform exhaust gas into reduction gas easily without segregation of carbon by preheating exhaust gas beforehand in case of generating reduction gas for the solid phase reduction of the iron ore in the reduction furnace by reforming reaction of natural gas and exhaust gas from the reduction furnace.
CONSTITUTION: In manufacturing the sponge iron by direct solid phase reduction of the iron ore in the reduction shaft furnace 1, after exhaust gas from the reduction furnace is cooled, removed from the dust and dehumidified by the scrubber 2, a part b' is made into the fuel for the reformer 3 and the remainder is fed to the high temperature heat exchanger 4, heated at 750W850°C. The preheated exhaust gas C is put in a high speed mixer 6 and mixed with natural gas d, and mixed gas e is fed to the reformer 3. In this case 1pts.wt. of exhaust gas is mixed with 0.2W0.25pts. wt. of natural gas, reformed in the reformer 3 at 850W950°C and fed to the reduction furnace as reduction gas f. Because reforming reaction proceeds without segregation of solid carbon, the reformer 3 can be of a small type.
COPYRIGHT: (C)1982,JPO&Japio
JP56027954A 1981-02-26 1981-02-26 Direct reduction type steel processing Pending JPS5776114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027954A JPS5776114A (en) 1981-02-26 1981-02-26 Direct reduction type steel processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027954A JPS5776114A (en) 1981-02-26 1981-02-26 Direct reduction type steel processing

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP54153963 Division

Publications (1)

Publication Number Publication Date
JPS5776114A true JPS5776114A (en) 1982-05-13

Family

ID=12235279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027954A Pending JPS5776114A (en) 1981-02-26 1981-02-26 Direct reduction type steel processing

Country Status (1)

Country Link
JP (1) JPS5776114A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452712A (en) * 2007-09-11 2009-03-18 Yadollah Saboohi Use of a cyclonic heat exchanger in the production of sponge iron
US20120031236A1 (en) * 2009-04-03 2012-02-09 Paul Wurth S.A. Method and installation for producing direct reduced iron

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2452712A (en) * 2007-09-11 2009-03-18 Yadollah Saboohi Use of a cyclonic heat exchanger in the production of sponge iron
US20120031236A1 (en) * 2009-04-03 2012-02-09 Paul Wurth S.A. Method and installation for producing direct reduced iron
CN102365374A (en) * 2009-04-03 2012-02-29 保尔伍斯股份有限公司 Method and installation for producing direct reduced iron
JP2012522889A (en) * 2009-04-03 2012-09-27 ポール ヴルス エス．エイ． Method and apparatus for producing directly reduced iron

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