KR20220158079A - 환원철의 제조 방법 - Google Patents

환원철의 제조 방법 Download PDF

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Publication number
KR20220158079A
KR20220158079A KR1020227038940A KR20227038940A KR20220158079A KR 20220158079 A KR20220158079 A KR 20220158079A KR 1020227038940 A KR1020227038940 A KR 1020227038940A KR 20227038940 A KR20227038940 A KR 20227038940A KR 20220158079 A KR20220158079 A KR 20220158079A
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KR
South Korea
Prior art keywords
gas
reduced iron
reducing
reducing gas
shaft 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
KR1020227038940A
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English (en)
Korean (ko)
Inventor
다카노부 이나다
모리토시 미즈타니
유타카 우지사와
나오토 야스다
히토시 후나가네
Original Assignee
닛폰세이테츠 가부시키가이샤
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.)
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Application filed by 닛폰세이테츠 가부시키가이샤 filed Critical 닛폰세이테츠 가부시키가이샤
Publication of KR20220158079A publication Critical patent/KR20220158079A/ko
Pending legal-status Critical Current

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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
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/16—Arrangements of tuyeres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • 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
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • 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
    • 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
    • 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
    • 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
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66—Heat exchange
    • 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
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Control And Safety Of Cranes (AREA)
KR1020227038940A 2020-05-28 2021-05-14 환원철의 제조 방법 Pending KR20220158079A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2020-093139 2020-05-28
JP2020093139 2020-05-28
PCT/JP2021/018391 WO2021241272A1 (ja) 2020-05-28 2021-05-14 還元鉄の製造方法

Publications (1)

Publication Number Publication Date
KR20220158079A true KR20220158079A (ko) 2022-11-29

Family

ID=78744545

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020227038940A Pending KR20220158079A (ko) 2020-05-28 2021-05-14 환원철의 제조 방법

Country Status (10)

Country Link
US (1) US20230167517A1 (enExample)
EP (1) EP4159879A4 (enExample)
JP (2) JP7575698B2 (enExample)
KR (1) KR20220158079A (enExample)
CN (1) CN115552042A (enExample)
AU (1) AU2021281774B2 (enExample)
CA (1) CA3176589A1 (enExample)
MX (1) MX2022013918A (enExample)
TW (1) TWI789760B (enExample)
WO (1) WO2021241272A1 (enExample)

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US12448889B2 (en) 2020-05-20 2025-10-21 Luossavaara-Kiirunavaara Ab Raise caving method for mining deposits, and a mining infrastructure, monitoring system, machinery, control system and data medium therefor
SE546026C2 (en) 2020-10-22 2024-04-16 Luossavaara Kiirunavaara Ab Detonator support device and method of charging a blasthole
SE546002C2 (en) 2020-10-22 2024-04-09 Luossavaara Kiirunavaara Ab A blasting system and a method of explosive material charging
EP4253572A1 (de) * 2022-03-30 2023-10-04 Primetals Technologies Austria GmbH Reduktion metalloxidhaltigen materials auf basis von ammoniak nh3
CA3254277A1 (en) * 2022-03-30 2025-07-04 Primetals Technologies Austria GmbH REDUCTION OF A METAL OXIDE MATERIAL BASED ON AMMONIA NH3
SE547277C2 (en) * 2022-04-01 2025-06-17 Luossavaara Kiirunavaara Ab Method and configuration for producing reduced iron ore material
KR102891619B1 (ko) * 2022-08-30 2025-11-26 제이에프이미네라르 가부시키가이샤 순환형 환원 시스템, 철광석의 환원 방법, 및 용광로의 조업 방법
WO2024258966A2 (en) * 2023-06-14 2024-12-19 Trustees Of Tufts College Methods for reducing metal oxides with ammonia gas
CN116769987A (zh) * 2023-07-07 2023-09-19 鞍钢集团工程技术有限公司 一种氨气喷吹煤粉的方法及系统
JP7622914B1 (ja) * 2023-07-25 2025-01-28 Ｊｆｅスチール株式会社 ガス還元率測定方法、高炉操業方法、直接還元シャフト炉の操業方法及び鉄原料
CN116970748B (zh) * 2023-08-04 2025-10-17 青海亚洲硅业多晶硅有限公司 一种氨氢冶金装置及方法
SE2351155A1 (en) * 2023-10-09 2025-04-10 Hybrit Development Ab Process and system for production of passivated cold direct reduced iron
WO2025134546A1 (ja) * 2023-12-18 2025-06-26 日本製鉄株式会社 還元鉄の製造方法
WO2025202253A1 (de) * 2024-03-28 2025-10-02 Primetals Technologies Austria GmbH Reduktion eisenoxidhaltigen materials mit ammoniak nh3
EP4624594A1 (de) * 2024-03-28 2025-10-01 Primetals Technologies Austria GmbH Reduktion eisenoxidhaltigen materials mit ammoniak nh3

Citations (1)

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JP2010046055A (ja) 2008-07-25 2010-03-04 Toshio Kondo 海藻の収穫装置とその装置を使用した収穫方法

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US2862808A (en) * 1957-07-31 1958-12-02 Alan N Mann Apparatus and method for reducing iron oxide pellets
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Publication number Publication date
JPWO2021241272A1 (enExample) 2021-12-02
TWI789760B (zh) 2023-01-11
WO2021241272A1 (ja) 2021-12-02
AU2021281774B2 (en) 2024-09-26
EP4159879A1 (en) 2023-04-05
EP4159879A4 (en) 2023-12-06
TW202200797A (zh) 2022-01-01
JP7741429B2 (ja) 2025-09-18
AU2021281774A1 (en) 2022-12-01
CN115552042A (zh) 2022-12-30
MX2022013918A (es) 2022-11-30
US20230167517A1 (en) 2023-06-01
JP7575698B2 (ja) 2024-10-30
BR112022021744A2 (pt) 2022-12-06
JP2024107148A (ja) 2024-08-08
CA3176589A1 (en) 2021-12-02

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