BR112012016388A2 - método de operação para agitar mecanicamente ferro fundido contendo cromo - Google Patents

método de operação para agitar mecanicamente ferro fundido contendo cromo

Info

Publication number
BR112012016388A2
BR112012016388A2 BR112012016388A BR112012016388A BR112012016388A2 BR 112012016388 A2 BR112012016388 A2 BR 112012016388A2 BR 112012016388 A BR112012016388 A BR 112012016388A BR 112012016388 A BR112012016388 A BR 112012016388A BR 112012016388 A2 BR112012016388 A2 BR 112012016388A2
Authority
BR
Brazil
Prior art keywords
cast iron
impeller
container
chromium
mechanically stirring
Prior art date
Application number
BR112012016388A
Other languages
English (en)
Other versions
BR112012016388B1 (pt
Inventor
Mori Masakazu
Sugiura Masayuki
Yoshino Takahiro
Original Assignee
Nisshin Steel Co Ltd
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 Nisshin Steel Co Ltd filed Critical Nisshin Steel Co Ltd
Publication of BR112012016388A2 publication Critical patent/BR112012016388A2/pt
Publication of BR112012016388B1 publication Critical patent/BR112012016388B1/pt

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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/06—Constructional features of mixers for pig-iron
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
    • 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
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • F27D27/00—Stirring devices for molten material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

patente de invenção: método de operação para agitar mecanicamente ferro fundido contendo cromo. a presente invenção refere-se a um método de operação para prolongar notavelmente a vida do "rotor" onde o impulsor e a vara axial são integrados entre si, na agitação mecânica de um ferro fundido contendo cromo. um método de operação para agitar mecanicamente ferro fundido contendo cromo, que compreende um processo de refino de agitar mecanicamente ferro fundido contendo cromo contido em um recipiente de refino pelo uso de um impulsor tendo um eixo de rotação na direção vertical onde o recipiente de refino é tal que a seção transversal horizontal da sua parede interna é circular em torno do eixo central do recipiente na direção vertical e o impulsor, conforme integrado à vara axial coberta com um refratário, gira em torno do eixo central da vara axial, como seu eixo de rotação, onde: o modo de agitação é trocado regularmente ou irregularmente, conforme selecionado para cada carga de agitação, entre "modo de agitação concêntrica" de agitação do ferro fundido em um estado em que o eixo de rotação do impulsor é centralizado no eixo central do recipiente, e "modo de agitação excêntrica" de agitar o ferro fundido em um estado em que o eixo de rotação do impulsor é descentralizado do eixo central do recipiente.
BR112012016388-4A 2010-01-07 2010-12-08 Método de operação para agitar mecanicamente ferro fundido contendo cromo BR112012016388B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010002408A JP5295138B2 (ja) 2010-01-07 2010-01-07 含クロム溶鉄の機械撹拌操業法
JP2010-002408 2010-01-07
PCT/JP2010/072051 WO2011083655A1 (ja) 2010-01-07 2010-12-08 含クロム溶鉄の機械撹拌操業法

Publications (2)

Publication Number Publication Date
BR112012016388A2 true BR112012016388A2 (pt) 2017-03-07
BR112012016388B1 BR112012016388B1 (pt) 2021-07-27

Family

ID=44305393

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012016388-4A BR112012016388B1 (pt) 2010-01-07 2010-12-08 Método de operação para agitar mecanicamente ferro fundido contendo cromo

Country Status (12)

Country Link
US (1) US8753423B2 (pt)
EP (1) EP2522758B1 (pt)
JP (1) JP5295138B2 (pt)
KR (1) KR101623768B1 (pt)
CN (1) CN102712960B (pt)
BR (1) BR112012016388B1 (pt)
ES (1) ES2707809T3 (pt)
MY (1) MY179899A (pt)
RU (1) RU2556195C2 (pt)
TW (1) TWI529362B (pt)
WO (1) WO2011083655A1 (pt)
ZA (1) ZA201204483B (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5949637B2 (ja) * 2013-04-01 2016-07-13 Ｊｆｅスチール株式会社 脱硫処理後の溶銑の復硫防止方法
CN103486874B (zh) * 2013-08-14 2015-03-25 无锡永兴机械制造有限公司 自动控制铝液精炼搅拌机
CN105400929B (zh) * 2015-11-17 2017-09-29 北京首钢自动化信息技术有限公司 一种kr终点硫含量的控制方法
CN106086313A (zh) * 2016-07-22 2016-11-09 武汉钢铁股份有限公司 铁水脱硫搅拌器
CN106435080B (zh) * 2016-09-27 2019-01-08 东北大学 一种涡流搅拌熔融还原炼铁方法
CN106521095A (zh) * 2016-12-27 2017-03-22 营口东邦冶金设备耐材有限公司 Kr螺旋式搅拌装置
CN114623686A (zh) * 2022-04-14 2022-06-14 九江市钒宇新材料股份有限公司 一种钒氮合金生产专用坩埚
TWI823620B (zh) * 2022-10-14 2023-11-21 中國鋼鐵股份有限公司 雙轉子攪拌裝置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664826A (en) * 1968-03-23 1972-05-23 Rheinstahl Huettenwerke Ag Process for accelerating metallurgical reactions
US3567204A (en) * 1969-05-05 1971-03-02 Nippon Kokan Kk Apparatus for refining molten metal
SU436091A1 (ru) * 1972-10-11 1974-07-15 Устройство для десульфурации чугуна
CH593340A5 (en) * 1975-03-17 1977-11-30 Union Carbide Corp Agitation of molten metal contg. impurities - using a graphite stirrer to enhance reactions
SU865931A1 (ru) * 1979-06-07 1981-09-23 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Смесь дл модифицировани и десульфурации чугуна и стали
SU933719A1 (ru) * 1980-11-26 1982-06-07 Донецкий научно-исследовательский институт черной металлургии Устройство дл обработки расплава реагентом
JPH0830224B2 (ja) * 1990-06-16 1996-03-27 正道 佐野 真空吸引式脱ガス装置
JP2000144272A (ja) * 1998-10-30 2000-05-26 Sumitomo Metal Ind Ltd 含クロム鋼の溶解、精錬時におけるクロム、鉄回収方法
JP2001049319A (ja) * 1999-08-11 2001-02-20 Kawasaki Steel Corp 溶銑の脱硫方法
JP2001248976A (ja) * 2000-03-03 2001-09-14 Nippon Steel Corp 溶銑の攪拌用インペラー
JP2001262212A (ja) * 2000-03-23 2001-09-26 Kawasaki Steel Corp 溶銑の脱硫方法及び脱硫装置
JP3643553B2 (ja) * 2001-11-29 2005-04-27 新日本製鐵株式会社 Ｋｒインペラー付着物除去装置及び方法
JP2004248975A (ja) 2003-02-21 2004-09-09 Aruze Corp 遊技機およびシミュレーションゲームプログラム
JP4936787B2 (ja) 2006-05-12 2012-05-23 日新製鋼株式会社 含Ｃｒ溶銑の脱硫精錬剤および脱硫方法
JP5252670B2 (ja) * 2007-11-07 2013-07-31 日新製鋼株式会社 溶融金属撹拌用インペラおよびそれを備える溶融金属撹拌装置

Also Published As

Publication number Publication date
WO2011083655A1 (ja) 2011-07-14
TWI529362B (zh) 2016-04-11
RU2012133630A (ru) 2014-02-20
JP2011140698A (ja) 2011-07-21
CN102712960A (zh) 2012-10-03
RU2556195C2 (ru) 2015-07-10
TW201139965A (en) 2011-11-16
JP5295138B2 (ja) 2013-09-18
EP2522758A1 (en) 2012-11-14
ZA201204483B (en) 2013-08-28
MY179899A (en) 2020-11-18
EP2522758A4 (en) 2017-03-01
CN102712960B (zh) 2014-03-12
KR101623768B1 (ko) 2016-05-24
KR20120104399A (ko) 2012-09-20
ES2707809T3 (es) 2019-04-05
BR112012016388B1 (pt) 2021-07-27
US20120260773A1 (en) 2012-10-18
US8753423B2 (en) 2014-06-17
EP2522758B1 (en) 2018-11-28

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL NISSHIN CO., LTD. (JP)

B25A Requested transfer of rights approved

Owner name: NIPPON STEEL STAINLESS STEEL CORPORATION (JP)

B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/12/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO.