JP7575697B2 - 還元鉄の製造方法 - Google Patents

還元鉄の製造方法 Download PDF

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Publication number
JP7575697B2
JP7575697B2 JP2022522188A JP2022522188A JP7575697B2 JP 7575697 B2 JP7575697 B2 JP 7575697B2 JP 2022522188 A JP2022522188 A JP 2022522188A JP 2022522188 A JP2022522188 A JP 2022522188A JP 7575697 B2 JP7575697 B2 JP 7575697B2
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Japan
Prior art keywords
gas
reducing
nitrogen gas
reducing gas
shaft furnace
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JP2022522188A
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English (en)
Japanese (ja)
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JPWO2021230307A1 (https=
Inventor
隆信 稲田
守利 水谷
優 宇治澤
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Nippon Steel Corp
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Nippon Steel Corp
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Publication date
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Publication of JPWO2021230307A1 publication Critical patent/JPWO2021230307A1/ja
Priority to JP2024091753A priority Critical patent/JP2024113093A/ja
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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
    • 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
    • F27D17/10—Arrangements for using waste heat
    • 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
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
    • 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
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Details (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Control And Safety Of Cranes (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Compounds Of Iron (AREA)
JP2022522188A 2020-05-14 2021-05-13 還元鉄の製造方法 Active JP7575697B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2024091753A JP2024113093A (ja) 2020-05-14 2024-06-05 還元鉄の製造方法

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020085078 2020-05-14
JP2020085078 2020-05-14
PCT/JP2021/018156 WO2021230307A1 (ja) 2020-05-14 2021-05-13 還元鉄の製造方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2024091753A Division JP2024113093A (ja) 2020-05-14 2024-06-05 還元鉄の製造方法

Publications (2)

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JPWO2021230307A1 JPWO2021230307A1 (https=) 2021-11-18
JP7575697B2 true JP7575697B2 (ja) 2024-10-30

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JP2022522188A Active JP7575697B2 (ja) 2020-05-14 2021-05-13 還元鉄の製造方法
JP2024091753A Pending JP2024113093A (ja) 2020-05-14 2024-06-05 還元鉄の製造方法

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Country Link
US (1) US12486548B2 (https=)
EP (1) EP4151754A4 (https=)
JP (2) JP7575697B2 (https=)
KR (1) KR20220160694A (https=)
CN (1) CN115552041A (https=)
AU (1) AU2021272824B2 (https=)
BR (1) BR112022021572A2 (https=)
CA (1) CA3176131A1 (https=)
MX (1) MX2022014023A (https=)
TW (1) TWI788843B (https=)
WO (1) WO2021230307A1 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE547126C2 (en) 2021-02-03 2025-04-29 Hybrit Development Ab Bleed-off gas recovery in a direct reduction process
SE545792C2 (en) * 2022-05-20 2024-02-06 Greeniron H2 Ab Method and device for producing direct reduced metal
EP4560034A4 (en) 2022-07-21 2025-12-24 Sumitomo Metal Mining Co PROCESS FOR SOLUTION OF NICKEL-CONTAINING OXIDE ORE
CN116734616A (zh) * 2023-06-02 2023-09-12 东北大学 一种氢基竖炉炉顶煤气的膜法回收利用装置及方法
AU2024317036A1 (en) 2023-07-28 2026-02-12 Sumitomo Metal Mining Co., Ltd. Method for smelting nickel-containing oxide ore
WO2025158579A1 (ja) * 2024-01-24 2025-07-31 日本製鉄株式会社 還元鉄の製造方法及びシャフト炉

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787406A (zh) 2010-01-12 2010-07-28 北京科技大学 一种超细赤铁矿粉非熔态还原工艺及装置
JP2016529383A (ja) 2013-07-31 2016-09-23 ミドレックス テクノロジーズ，インコーポレイテッド 天然ガスを用いた酸化鉄の金属鉄への還元

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2609288A (en) 1949-03-08 1952-09-02 Isobel E Stuart Process for the reduction of metal oxides by gases
GB729146A (en) * 1952-06-18 1955-05-04 Stanley Edward Matthews Apparatus and process for the reduction of metal oxides by gases
US2862808A (en) * 1957-07-31 1958-12-02 Alan N Mann Apparatus and method for reducing iron oxide pellets
US3135598A (en) 1960-04-27 1964-06-02 Yawata Iron & Steel Co Rapid direct reduction method of iron oxide
JPS4947208A (https=) * 1972-03-11 1974-05-07
DE2422641C2 (de) 1973-05-18 1985-11-21 Centre de Recherches Métallurgiques-Centrum voor Research in de Metallurgie, Brüssel/Bruxelles Verfahren zur Schachtofen-Erzreduktion
ZA802257B (en) * 1979-04-24 1982-02-24 Foster Wheeler Ltd Production of reducing gas for furnace injection
AU543499B2 (en) * 1979-04-24 1985-04-26 Foster Wheeler Ltd. Producing hydrogen and injecting into direct reduction furnaces or blast furnaces
US4363654A (en) * 1980-04-08 1982-12-14 Geoffrey Frederick Production of reducing gas for furnace injection
JPS63171817A (ja) 1987-01-09 1988-07-15 Nkk Corp 高炉付帯設備
US6027545A (en) * 1998-02-20 2000-02-22 Hylsa, S.A. De C.V. Method and apparatus for producing direct reduced iron with improved reducing gas utilization
KR101178536B1 (ko) * 2010-12-28 2012-08-30 주식회사 포스코 환원철의 제조방법 및 제조장치
UA117374C2 (uk) * 2013-07-31 2018-07-25 Мідрекс Текнолоджиз, Інк. Відновлення оксиду заліза до металевого заліза із застосуванням коксового газу та газу зі сталеплавильної печі з подачею кисню
JP5714750B1 (ja) * 2014-06-02 2015-05-07 新日鉄住金エンジニアリング株式会社 直接還元鉄の製造設備、及び直接還元鉄の製造方法
CN105219907A (zh) 2015-10-14 2016-01-06 钢铁研究总院 高磷鲕状赤铁矿气基直接还原-磨矿磁选的炼铁工艺
ES2769264T3 (es) 2016-02-23 2020-06-25 Bilstein Gmbh & Co Kg Dispositivo y método para laminar una banda de material con espesor variable
EP3581663A1 (de) * 2018-06-12 2019-12-18 Primetals Technologies Austria GmbH Herstellung von karburiertem eisenschwamm mittels wasserstoffbasierter direktreduktion
JP7121642B2 (ja) 2018-11-20 2022-08-18 Ｋｙｂ株式会社 流体圧制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787406A (zh) 2010-01-12 2010-07-28 北京科技大学 一种超细赤铁矿粉非熔态还原工艺及装置
JP2016529383A (ja) 2013-07-31 2016-09-23 ミドレックス テクノロジーズ，インコーポレイテッド 天然ガスを用いた酸化鉄の金属鉄への還元

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Publication number Publication date
BR112022021572A2 (pt) 2022-12-06
AU2021272824B2 (en) 2024-10-03
KR20220160694A (ko) 2022-12-06
EP4151754A4 (en) 2023-09-13
JP2024113093A (ja) 2024-08-21
JPWO2021230307A1 (https=) 2021-11-18
US12486548B2 (en) 2025-12-02
WO2021230307A1 (ja) 2021-11-18
CN115552041A (zh) 2022-12-30
EP4151754A1 (en) 2023-03-22
TWI788843B (zh) 2023-01-01
TW202146667A (zh) 2021-12-16
CA3176131A1 (en) 2021-11-18
MX2022014023A (es) 2022-11-30
US20230167516A1 (en) 2023-06-01
AU2021272824A1 (en) 2022-11-24

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