IN2014DN11045A - - Google Patents

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Publication number
IN2014DN11045A
IN2014DN11045A IN11045DEN2014A IN2014DN11045A IN 2014DN11045 A IN2014DN11045 A IN 2014DN11045A IN 11045DEN2014 A IN11045DEN2014 A IN 11045DEN2014A IN 2014DN11045 A IN2014DN11045 A IN 2014DN11045A
Authority
IN
India
Prior art keywords
coal
mixed
melting point
blast furnace
ash melting
Prior art date
Application number
Inventor
Keiichi Nakagawa
Setsuo Omoto
Masakazu Sakaguchi
Tsutomu Hamada
Original Assignee
Mitsubishi Heavy Ind 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 Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Publication of IN2014DN11045A publication Critical patent/IN2014DN11045A/en

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Classifications

    • 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
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/007—Conditions of the cokes or characterised by the cokes used
    • 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
    • C21B5/003—Injection of pulverulent coal
    • 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
    • C21B7/00—Blast furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

Provided is a method that is for preparing blast furnace blow in coal and that can obtain blast furnace blow in coal that suppresses accretion and the like of blast furnace blow in ash at a pathway leading to a tuyere of a blast furnace main body while suppressing a decrease in the amount of heat generation despite containing low ash melting point coal. On the basis of data obtained by means of analyzing coal a first and second coal type satisfying conditions (A B) are selected (S2 S3) the ash melting point of the mixed coal resulting from mixing the first and second coal types is derived (S4) on the basis of a four dimensional state diagram for SiO CaO MgO 20%AlO on the basis of the ash melting point of the mixed coal and the four dimensional state diagram an additive causing the ash melting point of the mixed coal to be at least 1400°C at the lowest quantity when added to the mixed coal is selected (S5) from SiO MgO and CaO the addition quantity is derived (S6) the first coal type and second coal type are mixed (S7) to result in the mixed coal and the addition quantity of the additive is added (S8) to the mixed coal.
IN11045DEN2014 2012-10-09 2013-09-19 IN2014DN11045A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012224038A JP2014077156A (en) 2012-10-09 2012-10-09 Method of preparing blast furnace coal
PCT/JP2013/075229 WO2014057778A1 (en) 2012-10-09 2013-09-19 Method for preparing blast furnace blow-in coal

Publications (1)

Publication Number Publication Date
IN2014DN11045A true IN2014DN11045A (en) 2015-09-25

Family

ID=50477249

Family Applications (1)

Application Number Title Priority Date Filing Date
IN11045DEN2014 IN2014DN11045A (en) 2012-10-09 2013-09-19

Country Status (7)

Country Link
US (1) US9617609B2 (en)
JP (1) JP2014077156A (en)
KR (1) KR101634054B1 (en)
CN (1) CN104471078B (en)
DE (1) DE112013004937T5 (en)
IN (1) IN2014DN11045A (en)
WO (1) WO2014057778A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015155569A (en) * 2014-02-21 2015-08-27 三菱重工業株式会社 Method of preparing blast furnace blow coal, blast furnace blow coal and utilization thereof
EP3185203B1 (en) 2015-12-22 2018-09-19 Doosan Heavy Industries & Construction Co., Ltd. Method for predicting slagging production position and slagging production possibility in furnace
US10530428B2 (en) * 2017-12-08 2020-01-07 JRL Coal, Inc. Coal tracker
CN108152162A (en) * 2017-12-22 2018-06-12 山西晋城无烟煤矿业集团有限责任公司 The practical approach that a kind of fluxing agent prescription of coal ash melting property quickly determines
CN110632057B (en) * 2019-10-29 2023-09-19 中国华能集团有限公司 Flux addition control system and method based on ultraviolet Raman spectrum analysis
CN112011659B (en) * 2020-07-30 2021-05-07 北京科技大学 Optimal selection of blast furnace injection fuel by calculating equivalent ash content
JP7602131B2 (en) 2021-03-24 2024-12-18 日本製鉄株式会社 Blast furnace operation method
CN115466632B (en) * 2022-07-15 2024-04-09 陈松涛 Production method for raising and homogenizing material layer temperature of fixed bed high material layer continuous gasification furnace
CN115910228A (en) * 2022-12-14 2023-04-04 宁波诺丁汉大学 A method for controlling the melting point of coal ash by adding additives

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034679C2 (en) * 1980-09-13 1983-01-13 ARBED S.A., 2930 Luxembourg Process for the continuous injection of reducing agents containing ash containing coal into the frame of a blast furnace
JPH0329131A (en) 1989-06-27 1991-02-07 Tosoh Corp Optical disk and production thereof
JPH03291313A (en) 1990-04-06 1991-12-20 Nippon Steel Corp Method for operating blast furnace
JPH05156330A (en) 1991-12-04 1993-06-22 Sumitomo Metal Ind Ltd Blast furnace Tuyere pulverized coal injection method
JP2001294911A (en) * 2000-04-11 2001-10-26 Nkk Corp Operation method for injecting a large amount of pulverized coal into the blast furnace
JP3620407B2 (en) * 2000-05-16 2005-02-16 Ｊｆｅスチール株式会社 Operation method of pulverized coal injection to blast furnace
JP2005068474A (en) * 2003-08-22 2005-03-17 Jfe Steel Kk Blast furnace pulverized coal injection operation method and blast furnace pulverized coal injection system
CN101638600B (en) * 2008-08-01 2011-06-15 中国神华能源股份有限公司 Coal blending method for reducing coal burning slag formation performance
CN101451070B (en) * 2008-12-31 2012-04-25 武汉钢铁(集团)公司 Coking and coal blending method based on catalytic index
CN103060054B (en) * 2013-01-28 2014-08-20 中国矿业大学 Method for adjusting and controlling melting temperature of coal ash by combining coal blending with auxiliary agent

Also Published As

Publication number Publication date
US20150203930A1 (en) 2015-07-23
US9617609B2 (en) 2017-04-11
WO2014057778A1 (en) 2014-04-17
JP2014077156A (en) 2014-05-01
KR101634054B1 (en) 2016-06-27
KR20150018889A (en) 2015-02-24
CN104471078A (en) 2015-03-25
DE112013004937T5 (en) 2015-07-02
CN104471078B (en) 2016-09-14

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