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IN2015DN02331A - - Google Patents

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Publication number
IN2015DN02331A
IN2015DN02331A IN2331DEN2015A IN2015DN02331A IN 2015DN02331 A IN2015DN02331 A IN 2015DN02331A IN 2331DEN2015 A IN2331DEN2015 A IN 2331DEN2015A IN 2015DN02331 A IN2015DN02331 A IN 2015DN02331A
Authority
IN
India
Prior art keywords
furnace
adjusted
monitored
oxygen
intra
Prior art date
Application number
Inventor
Hiroshi Ichikawa
Yasuyuki OOSAWA
Takafumi Hayashi
Shin Tomisaki
Original Assignee
Nippon Steel & Sumikin Eng Co
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 & Sumikin Eng Co filed Critical Nippon Steel & Sumikin Eng Co
Publication of IN2015DN02331A publication Critical patent/IN2015DN02331A/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
    • C21B5/006—Automatically controlling the process
    • 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
    • C21B7/24—Test rods or other checking devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2300/00—Process aspects
    • C21B2300/04—Modeling of the process, e.g. for control purposes; CII

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)

Abstract

Provided is a method for operating a blast furnace , said method including the following steps: a first step in which a coke charging amount is adjusted while a furnace- top temperature (T top) is monitored; a second step in which a pulverized- coal injection amount is adjusted while an intra- furnace superficial gas flow rate (u) and the furnace- top temperature (Ttop) are monitored; a third step in which the oxygen -enrichment ratio of oxygen- enriched air is adjusted while a tuyere combustion temperature (Tf) and the furnace- top temperature (T top) are monitored; and a fourth step in which , in accordance with the intra- furnace superficial gas flow rate (u), it is determined whether or not an oxygen -enriched -air injection amount needs to be adjusted.
IN2331DEN2015 2012-12-07 2013-12-04 IN2015DN02331A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012268588 2012-12-07
JP2013214049A JP5546675B1 (en) 2012-12-07 2013-10-11 Blast furnace operating method and hot metal manufacturing method
PCT/JP2013/082589 WO2014088031A1 (en) 2012-12-07 2013-12-04 Method for operating blast furnace and method for producing molten pig iron

Publications (1)

Publication Number Publication Date
IN2015DN02331A true IN2015DN02331A (en) 2015-08-28

Family

ID=50883449

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2331DEN2015 IN2015DN02331A (en) 2012-12-07 2013-12-04

Country Status (9)

Country Link
US (1) US9816151B2 (en)
EP (1) EP2930249B1 (en)
JP (1) JP5546675B1 (en)
CN (2) CN104781426B (en)
BR (1) BR112015010569B1 (en)
IN (1) IN2015DN02331A (en)
NO (1) NO2930249T3 (en)
RU (1) RU2613007C2 (en)
WO (1) WO2014088031A1 (en)

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CN105368996B (en) * 2015-10-28 2017-09-22 北京金自天正智能控制股份有限公司 A kind of autocontrol method for bf coal injection system injection amount
CN109112239B (en) * 2017-06-26 2021-09-14 鞍钢股份有限公司 Method for adjusting amount of semi coke added in mixed pulverized coal for injection according to blast furnace condition
JP7167652B2 (en) * 2018-11-14 2022-11-09 日本製鉄株式会社 Blast furnace operation method
JP7272326B2 (en) * 2020-07-06 2023-05-12 Ｊｆｅスチール株式会社 Operation Guidance Method, Blast Furnace Operation Method, Hot Metal Production Method, Operation Guidance Device
EP4155421B1 (en) * 2020-07-06 2025-10-08 JFE Steel Corporation Methods and devices for controlling hot metal temperature and operating a blast furnace
JP7339222B2 (en) * 2020-09-03 2023-09-05 株式会社神戸製鋼所 Pig iron manufacturing method
KR102846873B1 (en) * 2021-02-05 2025-08-14 제이에프이 스틸 가부시키가이샤 Supply heat amount estimating method, supply heat amount estimating device, and blast furnace operating method
JP7575683B2 (en) * 2021-03-03 2024-10-30 日本製鉄株式会社 Carbon-containing agglomerate for blast furnace and method for operating blast furnace using same
JP7140305B1 (en) * 2021-06-28 2022-09-21 Ｊｆｅスチール株式会社 Supplied heat amount estimation method, supplied heat amount estimation device, supplied heat amount estimation program, and method of operating blast furnace
EP4335933A4 (en) * 2021-06-28 2024-08-28 JFE Steel Corporation METHOD FOR ESTIMATING SUPPLIED HEAT AMOUNT, DEVICE FOR ESTIMATING SUPPLIED HEAT AMOUNT, PROGRAM FOR ESTIMATING SUPPLIED HEAT AMOUNT, AND METHOD FOR OPERATING BLAST FURNACE
EP4332243A4 (en) * 2021-06-28 2024-08-21 JFE Steel Corporation FEED HEAT QUANTITY ESTIMATION METHOD, FEED HEAT QUANTITY ESTIMATION DEVICE, FEED HEAT QUANTITY ESTIMATION PROGRAM, AND BLAST FURNACE OPERATION METHOD
CN115187051A (en) * 2022-07-06 2022-10-14 中冶赛迪信息技术(重庆)有限公司 Coal injection amount adjusting method and system, electronic equipment and storage medium
JP2024033885A (en) 2022-08-31 2024-03-13 株式会社神戸製鋼所 Pig iron manufacturing method
CN115341060B (en) * 2022-09-15 2023-12-26 中冶赛迪工程技术股份有限公司 System, method, equipment and medium for determining oxygen enrichment rate of blast furnace
CN116904678B (en) * 2023-07-06 2025-11-11 中冶赛迪工程技术股份有限公司 Regulating and controlling system and method for tuyere convolution zone
WO2025182165A1 (en) * 2024-02-27 2025-09-04 日本製鉄株式会社 Blast furnace operation method
JP7674698B1 (en) * 2024-02-27 2025-05-12 日本製鉄株式会社 Blast furnace operation method

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Also Published As

Publication number Publication date
US9816151B2 (en) 2017-11-14
CN107083461A (en) 2017-08-22
BR112015010569A2 (en) 2017-07-11
WO2014088031A1 (en) 2014-06-12
CN104781426A (en) 2015-07-15
RU2015127097A (en) 2017-01-13
JP5546675B1 (en) 2014-07-09
RU2613007C2 (en) 2017-03-14
EP2930249A1 (en) 2015-10-14
NO2930249T3 (en) 2018-08-11
EP2930249B1 (en) 2018-03-14
US20150275321A1 (en) 2015-10-01
BR112015010569B1 (en) 2019-10-08
EP2930249A4 (en) 2016-01-06
CN107083461B (en) 2019-05-10
JP2014132108A (en) 2014-07-17
CN104781426B (en) 2017-04-05

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