JP7849649B2 - 高炉、高炉用羽口及び高炉への還元ガス供給方法 - Google Patents

高炉、高炉用羽口及び高炉への還元ガス供給方法

Info

Publication number
JP7849649B2
JP7849649B2 JP2025546916A JP2025546916A JP7849649B2 JP 7849649 B2 JP7849649 B2 JP 7849649B2 JP 2025546916 A JP2025546916 A JP 2025546916A JP 2025546916 A JP2025546916 A JP 2025546916A JP 7849649 B2 JP7849649 B2 JP 7849649B2
Authority
JP
Japan
Prior art keywords
reducing gas
injection port
gas injection
blast furnace
outlet
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
JP2025546916A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2025225450A1 (https=
JPWO2025225450A5 (https=
Inventor
翔太 菅原
新之介 今野
博 酒井
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of JPWO2025225450A1 publication Critical patent/JPWO2025225450A1/ja
Publication of JPWO2025225450A5 publication Critical patent/JPWO2025225450A5/ja
Application granted granted Critical
Publication of JP7849649B2 publication Critical patent/JP7849649B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
JP2025546916A 2024-04-22 2025-04-15 高炉、高炉用羽口及び高炉への還元ガス供給方法 Active JP7849649B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2024069312 2024-04-22
JP2024069312 2024-04-22
PCT/JP2025/014761 WO2025225450A1 (ja) 2024-04-22 2025-04-15 高炉、高炉用羽口及び高炉への還元ガス供給方法

Publications (3)

Publication Number Publication Date
JPWO2025225450A1 JPWO2025225450A1 (https=) 2025-10-30
JPWO2025225450A5 JPWO2025225450A5 (https=) 2026-04-01
JP7849649B2 true JP7849649B2 (ja) 2026-04-22

Family

ID=97489959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2025546916A Active JP7849649B2 (ja) 2024-04-22 2025-04-15 高炉、高炉用羽口及び高炉への還元ガス供給方法

Country Status (3)

Country Link
JP (1) JP7849649B2 (https=)
TW (1) TW202548032A (https=)
WO (1) WO2025225450A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020117761A (ja) 2019-01-23 2020-08-06 Ｊｆｅスチール株式会社 高炉用羽口、高炉用羽口設備および粒状固体還元材の吹込み方法
JP2022147465A (ja) 2021-03-23 2022-10-06 Ｊｆｅスチール株式会社 気体還元材の吹込み方法および高炉用羽口
WO2022270027A1 (ja) 2021-06-23 2022-12-29 Ｊｆｅスチール株式会社 気体還元材の吹込み方法および高炉用羽口
JP7418876B1 (ja) 2023-02-03 2024-01-22 後藤合金株式会社 独立した２つ以上の送風口を備える高炉用送風羽口

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020117761A (ja) 2019-01-23 2020-08-06 Ｊｆｅスチール株式会社 高炉用羽口、高炉用羽口設備および粒状固体還元材の吹込み方法
JP2022147465A (ja) 2021-03-23 2022-10-06 Ｊｆｅスチール株式会社 気体還元材の吹込み方法および高炉用羽口
WO2022270027A1 (ja) 2021-06-23 2022-12-29 Ｊｆｅスチール株式会社 気体還元材の吹込み方法および高炉用羽口
JP7418876B1 (ja) 2023-02-03 2024-01-22 後藤合金株式会社 独立した２つ以上の送風口を備える高炉用送風羽口

Also Published As

Publication number Publication date
TW202548032A (zh) 2025-12-16
JPWO2025225450A1 (https=) 2025-10-30
WO2025225450A1 (ja) 2025-10-30

Similar Documents

Publication Publication Date Title
KR100486184B1 (ko) 초음속의 응집성 가스젯 제공 방법 및 장치
KR100937947B1 (ko) 금속, 금속 용탕, 및/또는 슬래그의 건식 야금처리 방법및 주입장치
JP4789327B2 (ja) 容器内にガスを注入するための装置
JP2008179876A (ja) 粉体加熱バーナーランスおよびそれを用いた溶融還元方法
JP7200649B2 (ja) 精錬用ランス装置、電気炉および製鋼方法
CN104471080A (zh) 高炉操作方法以及管束式喷枪
KR20090099538A (ko) 용광로에서 선철을 제조하기 위한 방법
JP4341131B2 (ja) 微粉炭吹込みバーナー
JP7849649B2 (ja) 高炉、高炉用羽口及び高炉への還元ガス供給方法
CN112941263A (zh) 一种冶金熔融还原炉装置
JP7799234B1 (ja) 高炉、高炉用羽口及び高炉への還元ガス供給方法
EP3774645B1 (en) Oxygen injection system for a direct reduction process
JP7836026B2 (ja) 高炉への還元ガス吹込方法及び高炉
JP7836025B2 (ja) 高炉への還元ガス吹込方法及び高炉
CN100573009C (zh) 一种喷烧器及由该喷烧器向熔炉中供应物质的方法
US8992656B2 (en) Controllable solids injection
JP7836024B2 (ja) 高炉への還元ガス吹込方法及び高炉
JP7215638B2 (ja) 転炉の上吹きランスの制御方法、副原料添加方法および溶鉄の精錬方法
WO2025164231A1 (ja) 高炉への還元ガス吹込方法及び高炉
JP7807648B2 (ja) 微粉炭吹込み用ランス
TW202605162A (zh) 高爐、高爐的作業方法及熱風風口的製造方法
TW202603184A (zh) 高爐及高爐用風口
WO2026018676A1 (ja) 高炉の操業方法
TW202609063A (zh) 高爐的作業方法
WO2026018680A1 (ja) 高炉、高炉の操業方法及び熱風羽口の製造方法

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250814

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20250814

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20250814

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250916

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20251114

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20251125

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20260224

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: 20260310

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20260323

R150 Certificate of patent or registration of utility model

Ref document number: 7849649

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150