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
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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
JP2020093139 2020-05-28
JPJP-P-2020-093139 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) US12595522B2 (https=)
EP (1) EP4159879A4 (https=)
JP (2) JP7575698B2 (https=)
KR (1) KR20220158079A (https=)
CN (1) CN115552042A (https=)
AU (1) AU2021281774B2 (https=)
CA (1) CA3176589A1 (https=)
MX (1) MX2022013918A (https=)
TW (1) TWI789760B (https=)
WO (1) WO2021241272A1 (https=)

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AU2021276093A1 (en) 2020-05-20 2023-02-02 Luossavaara Kiirunavaara Ab Raise caving method for mining deposits, and a mining infrastructure, monitoring system, machinery, control system and data medium therefor
SE546002C2 (en) 2020-10-22 2024-04-09 Luossavaara Kiirunavaara Ab A blasting system and a method of explosive material charging
SE546026C2 (en) 2020-10-22 2024-04-16 Luossavaara Kiirunavaara Ab Detonator support device and method of charging a blasthole
JP2025510857A (ja) * 2022-03-30 2025-04-15 プライメタルズ・テクノロジーズ・オーストリア・ゲーエムベーハー 金属酸化物含有材料のアンモニアｎｈ３に基づく還元
EP4253572A1 (de) * 2022-03-30 2023-10-04 Primetals Technologies Austria GmbH Reduktion metalloxidhaltigen materials auf basis von ammoniak nh3
SE547277C2 (en) * 2022-04-01 2025-06-17 Luossavaara Kiirunavaara Ab Method and configuration for producing reduced iron ore material
EP4509617A4 (en) * 2022-08-30 2025-06-11 JFE Mineral & Alloy Company, Ltd. CIRCULATION REDUCTION SYSTEM, IRON ORE REDUCTION METHOD, AND BLAST FURNACE OPERATING METHOD
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
SE548168C2 (en) * 2023-10-09 2026-04-13 Hybrit Dev 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
EP4624594A1 (de) * 2024-03-28 2025-10-01 Primetals Technologies Austria GmbH Reduktion eisenoxidhaltigen materials mit ammoniak nh3
WO2025202253A1 (de) * 2024-03-28 2025-10-02 Primetals Technologies Austria GmbH Reduktion eisenoxidhaltigen materials mit ammoniak nh3
WO2026037794A1 (de) * 2024-08-14 2026-02-19 Primetals Technologies Austria GmbH Herstellung von nitridiertem eisenschwamm

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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MX2022013918A (es) 2022-11-30
AU2021281774B2 (en) 2024-09-26
CA3176589A1 (en) 2021-12-02
JP7741429B2 (ja) 2025-09-18
TWI789760B (zh) 2023-01-11
JPWO2021241272A1 (https=) 2021-12-02
WO2021241272A1 (ja) 2021-12-02
TW202200797A (zh) 2022-01-01
CN115552042A (zh) 2022-12-30
US12595522B2 (en) 2026-04-07
EP4159879A4 (en) 2023-12-06
EP4159879A1 (en) 2023-04-05
AU2021281774A1 (en) 2022-12-01
JP7575698B2 (ja) 2024-10-30
US20230167517A1 (en) 2023-06-01
BR112022021744A2 (pt) 2022-12-06
JP2024107148A (ja) 2024-08-08

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