JP7552881B2 - 高炉の操業方法 - Google Patents

高炉の操業方法 Download PDF

Info

Publication number
JP7552881B2
JP7552881B2 JP2023516075A JP2023516075A JP7552881B2 JP 7552881 B2 JP7552881 B2 JP 7552881B2 JP 2023516075 A JP2023516075 A JP 2023516075A JP 2023516075 A JP2023516075 A JP 2023516075A JP 7552881 B2 JP7552881 B2 JP 7552881B2
Authority
JP
Japan
Prior art keywords
gas
vol
blast furnace
furnace
raw materials
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.)
Active
Application number
JP2023516075A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023199550A1 (https=
Inventor
直美 澤木
雄基 川尻
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.)
JFE Steel Corp
Original Assignee
JFE Steel 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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of JPWO2023199550A1 publication Critical patent/JPWO2023199550A1/ja
Application granted granted Critical
Publication of JP7552881B2 publication Critical patent/JP7552881B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/003—Injection of pulverulent coal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • 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
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres
    • C21B7/163—Blowpipe assembly
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B2005/005—Selection or treatment of the reducing gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
JP2023516075A 2022-04-11 2022-12-16 高炉の操業方法 Active JP7552881B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022064977 2022-04-11
JP2022064977 2022-04-11
PCT/JP2022/046305 WO2023199550A1 (ja) 2022-04-11 2022-12-16 高炉の操業方法

Publications (2)

Publication Number Publication Date
JPWO2023199550A1 JPWO2023199550A1 (https=) 2023-10-19
JP7552881B2 true JP7552881B2 (ja) 2024-09-18

Family

ID=88329530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023516075A Active JP7552881B2 (ja) 2022-04-11 2022-12-16 高炉の操業方法

Country Status (6)

Country Link
EP (1) EP4477762A4 (https=)
JP (1) JP7552881B2 (https=)
KR (1) KR20240160150A (https=)
CN (1) CN119032183A (https=)
TW (1) TWI859671B (https=)
WO (1) WO2023199550A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025211235A1 (ja) * 2024-04-01 2025-10-09 日本製鉄株式会社 非焼成含炭塊成鉱の製造方法およびケイ酸バイオマスの高炉利用方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011021577A1 (ja) 2009-08-21 2011-02-24 新日本製鐵株式会社 高炉用の非焼成含炭塊成鉱およびその製造方法
JP2015199978A (ja) 2014-04-04 2015-11-12 新日鐵住金株式会社 還元鉄を用いた高炉操業方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790711A (en) * 1957-04-30 Molten
US3460934A (en) * 1966-12-19 1969-08-12 John J Kelmar Blast furnace method
JP2962195B2 (ja) 1995-06-27 1999-10-12 住友金属工業株式会社 高炉操業方法
JPH09143516A (ja) * 1995-11-17 1997-06-03 Nippon Steel Corp 竪型炉の操業方法
AUPO944697A0 (en) * 1997-09-26 1997-10-16 Technological Resources Pty Limited A method of producing metals and metal alloys
JP2002060809A (ja) * 2000-08-08 2002-02-28 Nippon Steel Corp 化学組成を調整した焼結鉱を使用する低炉熱高炉操業方法
JP3705243B2 (ja) 2002-06-05 2005-10-12 住友金属工業株式会社 高炉操業方法
JP2005298923A (ja) 2004-04-13 2005-10-27 Nippon Steel Corp 高炉における高鉱石／還元材比操業方法
BRPI0909727A2 (pt) * 2008-03-31 2017-10-10 Nippon Steel Corp método de produção de ferro reduzido
JP2013082971A (ja) * 2011-10-11 2013-05-09 Nippon Steel & Sumitomo Metal Corp 高炉の操業方法
CN105349725A (zh) * 2015-11-07 2016-02-24 衡南扬钢冶金技术有限公司 一种自燃还原法炼铁方法及冶炼装置
CN110229939B (zh) * 2019-07-15 2024-05-07 陶立群 一种两段回转窑法非焦炼铁装置
JP7339222B2 (ja) * 2020-09-03 2023-09-05 株式会社神戸製鋼所 銑鉄製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011021577A1 (ja) 2009-08-21 2011-02-24 新日本製鐵株式会社 高炉用の非焼成含炭塊成鉱およびその製造方法
JP2015199978A (ja) 2014-04-04 2015-11-12 新日鐵住金株式会社 還元鉄を用いた高炉操業方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
大野陽太郎・松浦正博，酸素高炉プロセスにおける炉内装入物の昇温，反応特性，鉄と鋼，第76巻第８号，日本，1990年，p.60-67

Also Published As

Publication number Publication date
JPWO2023199550A1 (https=) 2023-10-19
TW202340482A (zh) 2023-10-16
EP4477762A4 (en) 2025-05-14
EP4477762A1 (en) 2024-12-18
WO2023199550A1 (ja) 2023-10-19
CN119032183A (zh) 2024-11-26
KR20240160150A (ko) 2024-11-08
TWI859671B (zh) 2024-10-21

Similar Documents

Publication Publication Date Title
US9816151B2 (en) Method for operating blast furnace and method for producing molten pig iron
AU2020393659B2 (en) Blast furnace operation method
EP3124626B1 (en) Method of operating oxygen blast furnace
TW201538737A (zh) 鼓風爐之運作方法
JP7552881B2 (ja) 高炉の操業方法
JP7832483B2 (ja) 高炉の操業方法
JP7513200B2 (ja) 高炉の操業方法
EP4306660A1 (en) Oxygen blast furnace and oxygen blast furnace operation method
JP2020164886A (ja) 高炉の操業方法
JP7832465B2 (ja) 還元ペレットの製造方法
JP7758218B2 (ja) 高炉操業方法
JP7644352B2 (ja) 高炉の融着帯スラグ量の推定方法および操業方法
JP5855536B2 (ja) 高炉の操業方法
JP7794331B2 (ja) 高炉操業方法
JP7832580B2 (ja) 高炉の操業方法
JP2007186759A (ja) 高炉操業方法
JP7167652B2 (ja) 高炉の操業方法
WO2025258290A1 (ja) 還元炉の操業方法および還元鉄の製造方法
WO2003062473A1 (fr) Procede de production de metal liquide a faible teneur en silicium
KR100356156B1 (ko) 고로의연소효율향상방법
WO2025158975A1 (ja) 還元炉の操業方法および還元鉄の製造方法
JPS5855505A (ja) 低強度コ−クスの高炉使用方法
WO2025183173A1 (ja) 高炉の操業方法
JP2025133638A (ja) 高炉の操業方法
JPH02200712A (ja) 高炉操業法

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230310

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20240227

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20240411

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20240806

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20240819

R150 Certificate of patent or registration of utility model

Ref document number: 7552881

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150