JPS55113814A - Operation method of blast furnace - Google Patents

Operation method of blast furnace

Info

Publication number
JPS55113814A
JPS55113814A JP2022179A JP2022179A JPS55113814A JP S55113814 A JPS55113814 A JP S55113814A JP 2022179 A JP2022179 A JP 2022179A JP 2022179 A JP2022179 A JP 2022179A JP S55113814 A JPS55113814 A JP S55113814A
Authority
JP
Japan
Prior art keywords
gas
blast furnace
blown
blasting
fuel
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
JP2022179A
Other languages
Japanese (ja)
Inventor
Keiichi Wakabayashi
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP2022179A priority Critical patent/JPS55113814A/en
Publication of JPS55113814A publication Critical patent/JPS55113814A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • 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
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • 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
    • 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
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2

Landscapes

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

Abstract

PURPOSE:To considerably reduce the consumption of coke and heavy oil by supply fuel and O2 as gas for blasting to the lower tuyeres of the blast furnace, removing CO2 from the recovered blast furnace gas and recirculating the same into the blast furnace after heating. CONSTITUTION:Part of O2 is blown together with circulating gas from the lower tuyere 4A of a blast furnace 1 and the other O2 as gas for blasting is blown together with heavy oil from the tuyere 4B. The furnace top gas is removed of dust by way of a capturing pipe 6, rising pipe 7, and dry and wet dust removers 9, 11. Part thereof is used as fuel for others and the greater part is removed of CO2 in a remover 17, after which it is boosted by a gas compressor 19, is heated by a heater 24 and is blown through a plurality of blow ports 27. Part thereof is passed through a heater 25 and is blown through the blow port 4A, whereby the gas is circulation- used. In this way, the concentration of the reducing gas may be increased, the direct reduction-reaction, etc. which cause endothermic reaction may be reduced and the considerable reduction of fuel ratio is made possible.
JP2022179A 1979-02-24 1979-02-24 Operation method of blast furnace Pending JPS55113814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022179A JPS55113814A (en) 1979-02-24 1979-02-24 Operation method of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022179A JPS55113814A (en) 1979-02-24 1979-02-24 Operation method of blast furnace

Publications (1)

Publication Number Publication Date
JPS55113814A true JPS55113814A (en) 1980-09-02

Family

ID=12021103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022179A Pending JPS55113814A (en) 1979-02-24 1979-02-24 Operation method of blast furnace

Country Status (1)

Country Link
JP (1) JPS55113814A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6227509A (en) * 1985-07-26 1987-02-05 Nippon Kokan Kk <Nkk> Method for operating blast furnace
JPS62222006A (en) * 1986-03-20 1987-09-30 Nippon Steel Corp Method for feeding and conveying powder to be blown into blast furnace
JPS63171807A (en) * 1987-01-09 1988-07-15 Nkk Corp Operation method for oxygen blast furnace
KR101087127B1 (en) 2009-04-27 2011-11-25 현대제철 주식회사 Sludge filter for blast furnace and filtering method thereof
JP2012527528A (en) * 2009-05-20 2012-11-08 ポール ヴルス エス．エイ． Thermal storage heater operation method
WO2013110969A2 (en) 2011-12-27 2013-08-01 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
EP2626439A1 (en) 2008-03-18 2013-08-14 JFE Steel Corporation Method for separating blast furnace gas
WO2014006511A2 (en) 2012-07-03 2014-01-09 Hyl Technologies, S.A De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
GB2513185A (en) * 2013-04-19 2014-10-22 Siemens Vai Metals Tech Gmbh Blast furnace plant
JP2017503922A (en) * 2013-12-20 2017-02-02 レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード Method of operating top gas circulation blast furnace equipment
CN111850200A (en) * 2020-07-29 2020-10-30 中冶华天南京工程技术有限公司 Environment-friendly blowing-down method for blast furnace

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6227509A (en) * 1985-07-26 1987-02-05 Nippon Kokan Kk <Nkk> Method for operating blast furnace
US4917727A (en) * 1985-07-26 1990-04-17 Nippon Kokan Kabushiki Kaisha Method of operating a blast furnace
JPS62222006A (en) * 1986-03-20 1987-09-30 Nippon Steel Corp Method for feeding and conveying powder to be blown into blast furnace
JPS63171807A (en) * 1987-01-09 1988-07-15 Nkk Corp Operation method for oxygen blast furnace
EP2626439A1 (en) 2008-03-18 2013-08-14 JFE Steel Corporation Method for separating blast furnace gas
EP2641980A1 (en) 2008-03-18 2013-09-25 JFE Steel Corporation Method for separating blast furnace gas
KR101087127B1 (en) 2009-04-27 2011-11-25 현대제철 주식회사 Sludge filter for blast furnace and filtering method thereof
JP2012527528A (en) * 2009-05-20 2012-11-08 ポール ヴルス エス．エイ． Thermal storage heater operation method
TWI489065B (en) * 2009-05-20 2015-06-21 Wurth Paul Sa Method for operating a regenerative heater
WO2013110969A3 (en) * 2011-12-27 2014-07-31 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
CN104412056A (en) * 2011-12-27 2015-03-11 伊尔技术有限公司 Blast furnace with top-gas recycle
US20150068364A1 (en) * 2011-12-27 2015-03-12 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
JP2015510030A (en) * 2011-12-27 2015-04-02 エイチワイエル テクノロジーズ、エス．エー． デ シー．ヴイ Blast furnace for recirculating furnace top gas
WO2013110969A2 (en) 2011-12-27 2013-08-01 Hyl Technologies, S.A. De C.V. Blast furnace with top-gas recycle
WO2014006511A2 (en) 2012-07-03 2014-01-09 Hyl Technologies, S.A De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
CN104540928A (en) * 2012-07-03 2015-04-22 伊尔技术有限公司 Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
US9605326B2 (en) 2012-07-03 2017-03-28 Hyl Technologies, S.A. De C.V. Method and system for operating a blast furnace with top-gas recycle and a fired tubular heater
GB2513185A (en) * 2013-04-19 2014-10-22 Siemens Vai Metals Tech Gmbh Blast furnace plant
JP2017503922A (en) * 2013-12-20 2017-02-02 レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード Method of operating top gas circulation blast furnace equipment
CN111850200A (en) * 2020-07-29 2020-10-30 中冶华天南京工程技术有限公司 Environment-friendly blowing-down method for blast furnace

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