BR112012018690A2 - method to dismantle pig iron in a blast furnace - Google Patents

method to dismantle pig iron in a blast furnace

Info

Publication number
BR112012018690A2
BR112012018690A2 BR112012018690A BR112012018690A BR112012018690A2 BR 112012018690 A2 BR112012018690 A2 BR 112012018690A2 BR 112012018690 A BR112012018690 A BR 112012018690A BR 112012018690 A BR112012018690 A BR 112012018690A BR 112012018690 A2 BR112012018690 A2 BR 112012018690A2
Authority
BR
Brazil
Prior art keywords
pig iron
blast furnace
dismantling
dismantle
refractory bricks
Prior art date
Application number
BR112012018690A
Other languages
Portuguese (pt)
Other versions
BR112012018690B1 (en
Inventor
Hiroshi Yamasaki
Ryusuke Uemura
Takanori Kimura
Tatuhiro Kotyou
Toshiya Nomura
Yoshihiro Takano
Original Assignee
Nippon Steel Corp
Okumura 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, Okumura Corp filed Critical Nippon Steel Corp
Publication of BR112012018690A2 publication Critical patent/BR112012018690A2/en
Publication of BR112012018690B1 publication Critical patent/BR112012018690B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/04—Blast furnaces with special refractories
    • C21B7/06—Linings for 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1694—Breaking away the lining or removing parts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Blast Furnaces (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

método para desmantelar ferro-gusa em um alto-forno. a presente invenção refere-se a um método para desmantelar ferro-gusa em um alto-forno, segundo o qual cargas associadas com o desmantelamento do ferro-gusa podem ser carregadas mais eficientemente racionalizando o manejo de tijolos refratários. refere-se sobretudo a um método para desmantelar ferro-gusa em um alto-forno a fim de desmantelar explosivamente o ferro-gusa (5) rodeado por tijolos refratários (4) no intetior de um revestimento de alto-forno (3), em que os tijolos refratários são removidos para formar um espaço (s) no qual a superfície do ferro-gusa faceando o revestimento de alto-forno é exposto, os furos de explosão (7) orientados verticalmente são exercitados em posições apropriadas no ferro-gusa de modo que o ferro-gusa pulverizado irá sofrer colapso no espaço, e o ferro-gusa é explodido por meios de explosivos preenchidos nos furos de explosão.method for dismantling pig iron in a blast furnace. The present invention relates to a method for dismantling pig iron in a blast furnace, whereby loads associated with the dismantling of pig iron can be loaded more efficiently by streamlining the handling of refractory bricks. refers primarily to a method for dismantling pig iron in a blast furnace in order to explosively dismantle pig iron (5) surrounded by refractory bricks (4) inside a blast furnace coating (3), in Since the refractory bricks are removed to form a space (s) in which the surface of the pig iron facing the blast furnace lining is exposed, the vertically oriented blast holes (7) are drilled in appropriate positions on the pig iron. so that the pulverized pig iron will collapse in space, and the pig iron is exploded by means of explosives filled in the blast holes.

BR112012018690A 2010-01-26 2011-01-20 method to dismantle pig iron in a blast furnace BR112012018690B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010013870 2010-01-26
PCT/JP2011/050931 WO2011093198A1 (en) 2010-01-26 2011-01-20 Method of breaking up pig iron in blast furnace

Publications (2)

Publication Number Publication Date
BR112012018690A2 true BR112012018690A2 (en) 2016-05-03
BR112012018690B1 BR112012018690B1 (en) 2018-10-16

Family

ID=44319187

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112012018690A BR112012018690B1 (en) 2010-01-26 2011-01-20 method to dismantle pig iron in a blast furnace

Country Status (4)

Country Link
JP (1) JP4932972B2 (en)
KR (1) KR101200607B1 (en)
BR (1) BR112012018690B1 (en)
WO (1) WO2011093198A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108728599B (en) * 2018-06-22 2020-05-22 攀钢集团工程技术有限公司 Blast furnace bottom residual iron dismantling method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0826373B2 (en) * 1990-04-09 1996-03-13 新日本製鐵株式会社 Method for removing blast furnace residual iron and refractory bricks
JPH0826371B2 (en) * 1990-04-09 1996-03-13 新日本製鐵株式会社 Method for removing blast furnace residual iron and refractory bricks
JP3977543B2 (en) * 1999-03-11 2007-09-19 新日本製鐵株式会社 How to remove blast furnace residue
JP4729766B2 (en) 2006-08-10 2011-07-20 独立行政法人産業技術総合研究所 Method for producing superconducting oxide material
JP4810475B2 (en) 2007-03-19 2011-11-09 新日鉄エンジニアリング株式会社 How to remove blast furnace residue

Also Published As

Publication number Publication date
JP4932972B2 (en) 2012-05-16
WO2011093198A1 (en) 2011-08-04
BR112012018690B1 (en) 2018-10-16
KR101200607B1 (en) 2012-11-12
JPWO2011093198A1 (en) 2013-06-06
KR20120098934A (en) 2012-09-05

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: OKUMURA CORPORATION (JP) , NIPPON STEEL AND SUMITO

B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/01/2011, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved

Owner name: OKUMURA CORPORATION (JP) ; NIPPON STEEL CORPORATIO