BR112019015441A2 - Método de detecção de escória em fluxo de aço fundido - Google Patents

Método de detecção de escória em fluxo de aço fundido Download PDF

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Publication number
BR112019015441A2
BR112019015441A2 BR112019015441-8A BR112019015441A BR112019015441A2 BR 112019015441 A2 BR112019015441 A2 BR 112019015441A2 BR 112019015441 A BR112019015441 A BR 112019015441A BR 112019015441 A2 BR112019015441 A2 BR 112019015441A2
Authority
BR
Brazil
Prior art keywords
peak point
slag
maximum peak
histogram
molten steel
Prior art date
Application number
BR112019015441-8A
Other languages
English (en)
Inventor
Kusunoki Tomoyuki
Miyazaki Takahiro
Original Assignee
Nippon Steel Corporation
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 Corporation filed Critical Nippon Steel Corporation
Publication of BR112019015441A2 publication Critical patent/BR112019015441A2/pt

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/205—Metals in liquid state, e.g. molten metals
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/202—Constituents thereof
    • G01N33/2028—Metallic constituents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1765—Method using an image detector and processing of image signal

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Image Analysis (AREA)

Abstract

um método de detecção de escória em um fluxo de aço fundido inclui uma etapa de criação de histograma de criar um histograma para uma imagem capturada de um fluxo de aço fundido incluindo aço fundido e escória, uma etapa de detecção de ponto de pico máximo de detectar um ponto de pico máximo do histograma, uma etapa de detecção de ponto de pico intermediário de detectar um ponto de pico intermediário do histograma, uma etapa de contagem de pontos de pico intermediário de contar o número nh de pontos de pico intermediários que tem um parâmetro de densidade maior que o parâmetro de densidade no ponto de pico máximo e o número nl de pontos de pico intermediários que tem um parâmetro de densidade menor que o parâmetro de densidade no ponto de pico máximo, e uma etapa de determinação do tipo de ponto de pico máximo de determinar um tipo do ponto de pico máximo por uma relação de magnitude entre o número nl e o número nh.
BR112019015441-8A 2017-02-14 2018-02-13 Método de detecção de escória em fluxo de aço fundido BR112019015441A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2017-025440 2017-02-14
JP2017025440 2017-02-14
PCT/JP2018/004831 WO2018151078A1 (ja) 2017-02-14 2018-02-13 溶鋼流中のスラグ検出方法

Publications (1)

Publication Number Publication Date
BR112019015441A2 true BR112019015441A2 (pt) 2020-03-24

Family

ID=63169387

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019015441-8A BR112019015441A2 (pt) 2017-02-14 2018-02-13 Método de detecção de escória em fluxo de aço fundido

Country Status (9)

Country Link
US (1) US20190390290A1 (pt)
EP (1) EP3584328A1 (pt)
JP (1) JP6795046B2 (pt)
KR (1) KR20190102240A (pt)
CN (1) CN110268073A (pt)
BR (1) BR112019015441A2 (pt)
CA (1) CA3052696A1 (pt)
TW (1) TWI638137B (pt)
WO (1) WO2018151078A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113504725B (zh) * 2021-07-09 2022-09-02 衡阳镭目科技有限责任公司 转炉的实时炉渣状态监测装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5301621A (en) * 1993-05-17 1994-04-12 Rollins Environmental Services, Inc. Slag viscosity detection through image analysis of dripping slag within rotary incineration kilns
US5694480A (en) * 1995-08-30 1997-12-02 Tsukishima Kikai Co., Ltd. Molten slag flow rate measuring device and furnace facilities using the same
US5650117A (en) * 1995-09-27 1997-07-22 Vesuvius Crucible Company Slag detecting apparatus and method
EP0890839B1 (en) * 1997-07-11 2006-09-13 Sanyo Special Steel Co., Ltd. Method for analytically determining oxygen for each form of oxide
US6197086B1 (en) * 1997-11-13 2001-03-06 Bethlehem Steel Corporation System and method for minimizing slag carryover during the production of steel
US5968227A (en) * 1997-11-13 1999-10-19 Bethlehem Steel Corporation System and method for minimizing slag carryover during the tapping of a BOF converter in the production of steel
US6562285B1 (en) * 2000-11-15 2003-05-13 Metallurgical Sensors, Inc. Method and apparatus for detecting slag carryover
JP4638084B2 (ja) * 2001-06-25 2011-02-23 株式会社栗本鐵工所 溶融スラグ用の流路形成用部材
JP3565340B2 (ja) * 2001-07-03 2004-09-15 Ｊｆｅスチール株式会社 スラグ検知方法、スラグ検知装置及び除滓装置
JP4419861B2 (ja) * 2005-02-03 2010-02-24 Ｊｆｅスチール株式会社 転炉出鋼時のスラグ検出方法及び装置
US7468090B2 (en) * 2005-11-28 2008-12-23 Nupro Corporation Method for tapping a steel making furnace
JP4714607B2 (ja) * 2006-03-14 2011-06-29 新日本製鐵株式会社 高炉出銑流測定システム、高炉出銑流測定方法、及びコンピュータプログラム
CN101306466B (zh) * 2008-06-02 2011-03-30 田志恒 检测和控制钢水中的熔渣的装置和方法
JP5444692B2 (ja) * 2008-11-07 2014-03-19 Ｊｆｅスチール株式会社 スラグの流出検知方法
JP5448669B2 (ja) * 2009-09-17 2014-03-19 三菱重工業株式会社 石炭ガス化炉のスラグ監視装置及び石炭ガス化炉
CN101818228B (zh) * 2010-03-22 2011-12-21 马鞍山钢铁股份有限公司 转炉出钢下渣的控制系统及其控制方法
CN102181598B (zh) * 2011-03-04 2013-02-06 浙江大学 基于热图像的转炉出钢下渣预判及控制方法
CN102392098A (zh) * 2011-11-04 2012-03-28 衡阳镭目科技有限责任公司 一种炼钢炉下渣检测系统
CN202350922U (zh) * 2011-11-04 2012-07-25 衡阳镭目科技有限责任公司 炼钢炉下渣检测装置
CN105392904B (zh) * 2013-07-29 2017-06-13 杰富意钢铁株式会社 异常检测方法以及高炉操作方法
CN104749445B (zh) * 2013-12-25 2017-12-26 晟通科技集团有限公司 熔盐、熔渣电导率检测设备及检测方法
CN204679109U (zh) * 2015-05-11 2015-09-30 昆明理工大学 一种电热前床电极状态与熔渣密度测量装置
JP6695017B2 (ja) 2015-07-23 2020-05-20 日華化学株式会社 非フッ素系ポリマー、撥水剤組成物、撥水性繊維製品及び撥水性繊維製品の製造方法
CN105562630A (zh) * 2016-02-29 2016-05-11 宝钢工程技术集团有限公司 结晶器保护渣熔融状况检测装置和检测方法

Also Published As

Publication number Publication date
TW201835528A (zh) 2018-10-01
CN110268073A (zh) 2019-09-20
US20190390290A1 (en) 2019-12-26
KR20190102240A (ko) 2019-09-03
CA3052696A1 (en) 2018-08-23
JPWO2018151078A1 (ja) 2019-12-19
EP3584328A1 (en) 2019-12-25
WO2018151078A1 (ja) 2018-08-23
TWI638137B (zh) 2018-10-11
JP6795046B2 (ja) 2020-12-02

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Legal Events

Date Code Title Description
B350 Update of information on the portal [chapter 15.35 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 4A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2658 DE 14-12-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.