KR20240004790A - 전기로 및 제강 방법 - Google Patents

전기로 및 제강 방법 Download PDF

Info

Publication number
KR20240004790A
KR20240004790A KR1020237041345A KR20237041345A KR20240004790A KR 20240004790 A KR20240004790 A KR 20240004790A KR 1020237041345 A KR1020237041345 A KR 1020237041345A KR 20237041345 A KR20237041345 A KR 20237041345A KR 20240004790 A KR20240004790 A KR 20240004790A
Authority
KR
South Korea
Prior art keywords
burner
furnace
fuel
gas
electric 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
KR1020237041345A
Other languages
English (en)
Korean (ko)
Inventor
후토시 오가사와라
료 가와바타
Original Assignee
제이에프이 스틸 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.)
Filing date
Publication date
Application filed by 제이에프이 스틸 가부시키가이샤 filed Critical 제이에프이 스틸 가부시키가이샤
Publication of KR20240004790A publication Critical patent/KR20240004790A/ko
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5294—General arrangement or layout of the electric melt shop
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/20—Arrangements of heating devices
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/20—Arrangements of heating devices
    • F27B3/205—Burners
    • 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/22—Arrangements of air or gas supply devices
    • 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
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
    • 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
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/08—Heating by electric discharge, e.g. arc discharge
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • 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
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
KR1020237041345A 2021-05-07 2022-04-08 전기로 및 제강 방법 Pending KR20240004790A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2021-078969 2021-05-07
JP2021078969 2021-05-07
PCT/JP2022/017372 WO2022234762A1 (ja) 2021-05-07 2022-04-08 電気炉および製鋼方法

Publications (1)

Publication Number Publication Date
KR20240004790A true KR20240004790A (ko) 2024-01-11

Family

ID=83932184

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020237041345A Pending KR20240004790A (ko) 2021-05-07 2022-04-08 전기로 및 제강 방법

Country Status (8)

Country Link
US (1) US20240191315A1 (https=)
EP (1) EP4303327A4 (https=)
JP (1) JP7388563B2 (https=)
KR (1) KR20240004790A (https=)
CN (1) CN117280048A (https=)
BR (1) BR112023022801A2 (https=)
TW (1) TWI817466B (https=)
WO (1) WO2022234762A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI881534B (zh) * 2023-03-07 2025-04-21 日商杰富意鋼鐵股份有限公司 鐵水的製造方法
EP4653554A4 (en) * 2023-03-07 2026-05-06 Jfe Steel Corp Molten-iron production method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020046098A (ja) 2018-09-18 2020-03-26 中外炉工業株式会社 水素ガス燃焼装置
JP2020046099A (ja) 2018-09-18 2020-03-26 中外炉工業株式会社 水素ガス燃焼装置
JP2021025713A (ja) 2019-08-06 2021-02-22 中外炉工業株式会社 混焼バーナー

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW462990B (en) * 1998-03-03 2001-11-11 Nippon Kokan Kk Arc melting apparatus and method for cold iron source
JP2002327211A (ja) * 2001-04-26 2002-11-15 Nkk Corp 冷鉄源の溶解方法
US20050252430A1 (en) * 2002-12-30 2005-11-17 Satchell Donald P Jr Burner-lance and combustion method for heating surfaces susceptible to oxidation or reduction
JP5608989B2 (ja) 2009-03-12 2014-10-22 Ｊｆｅスチール株式会社 溶銑の昇熱方法
TWI586446B (zh) * 2013-12-18 2017-06-11 國立清華大學 電弧爐收集之集塵灰運用於化學迴圈燃燒程序之方法
CN107208974A (zh) * 2015-01-27 2017-09-26 杰富意钢铁株式会社 利用电炉制造铁水的方法
JP6504370B2 (ja) * 2016-07-26 2019-04-24 Ｊｆｅスチール株式会社 電気炉による溶鉄の製造方法
WO2018074166A1 (ja) * 2016-10-21 2018-04-26 Ｊｆｅスチール株式会社 電気炉用助燃バーナー
CN111748673B (zh) 2020-06-02 2021-06-11 北京科技大学 一种电弧炉炼钢用多功能氢氧烧嘴及供能控制方法
CN111763792A (zh) * 2020-07-08 2020-10-13 酒泉钢铁(集团)有限责任公司 一种不锈钢除尘灰转底炉-电炉还原处理工艺

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020046098A (ja) 2018-09-18 2020-03-26 中外炉工業株式会社 水素ガス燃焼装置
JP2020046099A (ja) 2018-09-18 2020-03-26 中外炉工業株式会社 水素ガス燃焼装置
JP2021025713A (ja) 2019-08-06 2021-02-22 中外炉工業株式会社 混焼バーナー

Also Published As

Publication number Publication date
CN117280048A (zh) 2023-12-22
TW202248424A (zh) 2022-12-16
EP4303327A1 (en) 2024-01-10
US20240191315A1 (en) 2024-06-13
BR112023022801A2 (pt) 2024-01-16
TWI817466B (zh) 2023-10-01
JP7388563B2 (ja) 2023-11-29
WO2022234762A1 (ja) 2022-11-10
EP4303327A4 (en) 2024-10-30
JPWO2022234762A1 (https=) 2022-11-10

Similar Documents

Publication Publication Date Title
JP5552754B2 (ja) アーク炉の操業方法
JP5413043B2 (ja) 大量の鉄スクラップを用いた転炉製鋼方法
KR20110054059A (ko) 용철의 제조 방법
JP5236926B2 (ja) 溶鋼の製造方法
JP5608989B2 (ja) 溶銑の昇熱方法
CN103060510A (zh) 一种采用燃气加热的高废钢比的冶炼方法
KR20240004790A (ko) 전기로 및 제강 방법
JP7142154B2 (ja) 電気炉を用いた低窒素鋼の精錬方法
JPH0726318A (ja) 製鋼用電気炉の操業方法
CN100363508C (zh) 电炉转炉化炼钢生产工艺
JP7838659B2 (ja) 溶鉄の製造方法
CN100352960C (zh) 含铬熔融金属的精炼方法
KR20260008089A (ko) 전기 아크로에서 저탄소 직접 환원철로부터 용융 철 또는 이의 합금을 생산하는 방법
CN102312043B (zh) 电炉炼钢供氧工艺及使用该供氧工艺的电炉炼钢方法
RU2828265C2 (ru) Электрическая печь и способ сталелитейного производства
JP4077533B2 (ja) 金属溶解方法
JP7772242B2 (ja) 溶鉄の製造方法
JPH08325621A (ja) 屑鉄から高炭素溶融鉄を製造する方法
JPH09227918A (ja) ステンレス鋼溶製方法
JP2021188073A (ja) 電気炉による溶鉄の製造方法
JPS635450B2 (https=)
Brhel et al. Latest experience with advanced chemical energy introduction to smaller size furnaces
Toulouevski et al. Modern EAFs and Technology of the Heat with Continuous Charging of Scrap into Flat Bath
JP2017048460A (ja) 溶銑の精錬方法

Legal Events

Date Code Title Description
PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

D21 Rejection of application intended

Free format text: ST27 STATUS EVENT CODE: A-1-2-D10-D21-EXM-PE0902 (AS PROVIDED BY THE NATIONAL OFFICE)

PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

P11 Amendment of application requested

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P11-NAP-X000 (AS PROVIDED BY THE NATIONAL OFFICE)

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000