BR112023023542A2 - Usina de aço com forno a arco elétrico - Google Patents

Usina de aço com forno a arco elétrico

Info

Publication number
BR112023023542A2
BR112023023542A2 BR112023023542A BR112023023542A BR112023023542A2 BR 112023023542 A2 BR112023023542 A2 BR 112023023542A2 BR 112023023542 A BR112023023542 A BR 112023023542A BR 112023023542 A BR112023023542 A BR 112023023542A BR 112023023542 A2 BR112023023542 A2 BR 112023023542A2
Authority
BR
Brazil
Prior art keywords
electric arc
arc furnace
suction line
steel plant
denox
Prior art date
Application number
BR112023023542A
Other languages
English (en)
Inventor
Andrea Lanari
Arrigo Bertolissio
Original Assignee
Sms Group S P A
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 Sms Group S P A filed Critical Sms Group S P A
Publication of BR112023023542A2 publication Critical patent/BR112023023542A2/pt

Links

Classifications

    • 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
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/003—Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • 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
    • 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
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning 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
    • C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
    • 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
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00—Exhaust gas
    • C21C2100/02—Treatment of the exhaust gas
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Manufacture Of Iron (AREA)

Abstract

usina de aço com forno a arco elétrico. a presente invenção está relacionada a uma usina siderúrgica (1) compreendendo pelo menos um forno a arco elétrico (10) e um sistema de coleta e tratamento de fumo (100) compreendendo: - uma primeira linha de sucção primária (110) conectada fluidamente ao forno a arco elétrico (10) para sugar os fumos gerados no referido forno a arco elétrico (10); - uma linha de sucção secundária (120) adequada para ventilar o ambiente ao redor do forno a arco elétrico (10) por intermédio de pelo menos uma coifa de sucção (121); e - pelo menos um aparelho de filtração (130) adequado para filtrar as emissões coletadas pelo referido sistema de coleta e tratamento de fumo (100) antes de serem descarregados na atmosfera. o forno a arco elétrico (10) é energizado por um sistema de carregamento contínuo (11). um aparelho de resfriamento de fumo (111), um dispositivo de coleta de poeira (112) e um aparelho de redução catalítica seletiva denox (113) são dispostos em sequência ao longo da referida primeira linha de sucção primária (110), começando a partir do forno a arco elétrico (10). a linha de sucção secundária (120) flui para a primeira linha de sucção primária (110) a jusante do aparelho de redução catalítica seletiva denox (113) e a montante do referido pelo menos um aparelho de filtração (130).
BR112023023542A 2021-05-11 2022-05-05 Usina de aço com forno a arco elétrico BR112023023542A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000012065A IT202100012065A1 (it) 2021-05-11 2021-05-11 Impianto siderurgico con forno ad arco elettrico
PCT/IB2022/054162 WO2022238822A1 (en) 2021-05-11 2022-05-05 Steel plant with electric arc furnace

Publications (1)

Publication Number Publication Date
BR112023023542A2 true BR112023023542A2 (pt) 2024-03-12

Family

ID=77126979

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023023542A BR112023023542A2 (pt) 2021-05-11 2022-05-05 Usina de aço com forno a arco elétrico

Country Status (7)

Country Link
US (1) US20240210115A1 (pt)
EP (1) EP4114991A1 (pt)
JP (1) JP2024521297A (pt)
BR (1) BR112023023542A2 (pt)
CA (1) CA3218415A1 (pt)
IT (1) IT202100012065A1 (pt)
WO (1) WO2022238822A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024127244A1 (en) * 2022-12-12 2024-06-20 Danieli & C. Officine Meccaniche S.P.A. Steel plant comprising an electric arc furnace and a carbon dioxide capturing system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3060441B2 (ja) * 1991-08-05 2000-07-10 大同特殊鋼株式会社 排ガスの処理方法及び処理装置
JP3837862B2 (ja) * 1997-08-20 2006-10-25 大同特殊鋼株式会社 電気溶融炉の操業方法
KR101166476B1 (ko) * 2011-08-12 2012-07-19 안성유리공업(주) 배출가스 처리시스템
CN110793338B (zh) * 2019-11-29 2021-11-02 中国科学院过程工程研究所 一种烟气净化和余热利用系统及方法
CN111112287A (zh) * 2019-12-18 2020-05-08 青岛万龙高新科技集团有限公司 采用电弧炉的危废资源化综合处理系统及其处理方法

Also Published As

Publication number Publication date
CA3218415A1 (en) 2022-11-17
US20240210115A1 (en) 2024-06-27
EP4114991A1 (en) 2023-01-11
WO2022238822A1 (en) 2022-11-17
IT202100012065A1 (it) 2022-11-11
JP2024521297A (ja) 2024-05-31

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