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UA97916C2 - blast-furnace process with the use of carbon-containing unfired pellets - Google Patents

blast-furnace process with the use of carbon-containing unfired pellets

Info

Publication number
UA97916C2
UA97916C2 UAA201105488A UAA201105488A UA97916C2 UA 97916 C2 UA97916 C2 UA 97916C2 UA A201105488 A UAA201105488 A UA A201105488A UA A201105488 A UAA201105488 A UA A201105488A UA 97916 C2 UA97916 C2 UA 97916C2
Authority
UA
Ukraine
Prior art keywords
pellets
carbon
fired
fired pellets
containing unfired
Prior art date
Application number
UAA201105488A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Кэнити Хигути
Такаси СИНОХАРА
Такэси Нода
Original Assignee
Нипон Стил Корпорейшн
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42100712&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=UA97916(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Нипон Стил Корпорейшн filed Critical Нипон Стил Корпорейшн
Publication of UA97916C2 publication Critical patent/UA97916C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/007—Conditions of the cokes or characterised by the cokes used
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/242—Binding; Briquetting ; Granulating with binders
    • C22B1/244—Binding; Briquetting ; Granulating with binders organic
    • C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Provided is a method for operation of a blast furnace that uses a large volume of fired pellets as the iron-containing starting material, wherein carbon-containing unfired pellets are mixed with fired pellets and introduced in the vicinity of fired pellets of inferior reducing capability in order to eliminate the site of delayed reduction and create a thin melting zone structure near the melting zone inside the furnace, and thereby greatly reduce the starting units of fuel during blast furnace operation. By means of this method wherein iron-containing starting material and coke are alternately introduced in layers from the top of the blast furnace, (i) carbon-containing unfired pellets and fired pellets are premixed and the mixture of carbon-containing unfired pellets and fired pellets is introduced such as to replace a portion of the iron-containing starting material layer, and (ii) the mixture ratio of the carbon-containing unfired pellets and fired pellets is adjusted such that the ratio of starting units used R (kg/tp) of carbon-containing unfired pellets and starting units used P (kg/tp) of fired pellets, or R(kg/tp)/P(kg/tp), is brought between 0.09 and 0.31.
UAA201105488A 2008-10-10 2009-10-09 blast-furnace process with the use of carbon-containing unfired pellets UA97916C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008264483 2008-10-10
PCT/JP2009/067948 WO2010041770A1 (en) 2008-10-10 2009-10-09 Blast furnace operating method using carbon-containing unfired pellets

Publications (1)

Publication Number Publication Date
UA97916C2 true UA97916C2 (en) 2012-03-26

Family

ID=42100712

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201105488A UA97916C2 (en) 2008-10-10 2009-10-09 blast-furnace process with the use of carbon-containing unfired pellets

Country Status (7)

Country Link
EP (1) EP2336371B8 (en)
JP (1) JP4603628B2 (en)
KR (1) KR101211302B1 (en)
CN (1) CN102177256B (en)
BR (1) BRPI0920547B1 (en)
UA (1) UA97916C2 (en)
WO (1) WO2010041770A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6350101B2 (en) * 2013-10-22 2018-07-04 新日鐵住金株式会社 Charge determination method for carbon highly reactive charge and blast furnace operation method using the same
CN104313306B (en) * 2014-10-15 2016-08-10 中冶长天国际工程有限责任公司 The measuring method of a kind of sintering deposit solid fuel specific consumption and device
JP6696376B2 (en) * 2016-09-13 2020-05-20 日本製鉄株式会社 Blast furnace operation method
CN111638316B (en) * 2020-05-29 2022-09-16 鞍钢股份有限公司 Device and method for simulating coke reaction at high-temperature section of blast furnace
CN112609030A (en) * 2020-12-11 2021-04-06 四川德胜集团钒钛有限公司 Blast furnace smelting method of vanadium titano-magnetite
CN115368042B (en) * 2022-08-19 2023-09-08 深圳市考拉生态科技有限公司 Method for producing porous wollastonite spheres by using fluorine gypsum and quartz waste stone

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5358416A (en) * 1976-11-05 1978-05-26 Nippon Steel Corp Blast furnace operating method
JPS53130202A (en) 1977-04-20 1978-11-14 Nippon Steel Corp Preparation of cold pellet of dust
JPS58164710A (en) * 1982-03-24 1983-09-29 Sumitomo Metal Ind Ltd Charging method of blast furnace raw material
CN1025351C (en) * 1990-10-23 1994-07-06 刘玉琦 Raw material mixed charging blast furnace iron-smelting method
JP3068967B2 (en) 1992-11-09 2000-07-24 新日本製鐵株式会社 Blast furnace operation method
JP3708981B2 (en) 1995-01-20 2005-10-19 新日本製鐵株式会社 Agglomerate for iron making
JP3754553B2 (en) 1997-07-22 2006-03-15 株式会社神戸製鋼所 Agglomerated product for reduced iron and method for producing the same
JP3004265B1 (en) 1998-11-24 2000-01-31 株式会社神戸製鋼所 Carbon material interior pellet and reduced iron production method
JP3863052B2 (en) 2002-04-11 2006-12-27 株式会社神戸製鋼所 Blast furnace raw material charging method
JP4118604B2 (en) 2002-05-28 2008-07-16 株式会社 テツゲン Non-fired agglomerated carbon interior for blast furnace and method for producing the same
JP5000402B2 (en) * 2006-09-11 2012-08-15 新日本製鐵株式会社 Method for producing carbon-containing unfired pellets for blast furnace
JP4971815B2 (en) * 2007-02-01 2012-07-11 株式会社神戸製鋼所 Blast furnace operation method

Also Published As

Publication number Publication date
BRPI0920547A2 (en) 2020-08-11
JPWO2010041770A1 (en) 2012-03-08
CN102177256B (en) 2013-08-21
JP4603628B2 (en) 2010-12-22
WO2010041770A1 (en) 2010-04-15
EP2336371A4 (en) 2017-05-03
CN102177256A (en) 2011-09-07
KR101211302B1 (en) 2012-12-11
EP2336371B1 (en) 2019-01-02
KR20110051292A (en) 2011-05-17
BRPI0920547B1 (en) 2021-09-28
RU2011117324A (en) 2012-11-20
EP2336371A1 (en) 2011-06-22
EP2336371B8 (en) 2019-04-24

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