WO2017018765A8 - 용융로의 미분탄 취입장치 및 그 취입방법 - Google Patents

용융로의 미분탄 취입장치 및 그 취입방법 Download PDF

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Publication number
WO2017018765A8
WO2017018765A8 PCT/KR2016/008111 KR2016008111W WO2017018765A8 WO 2017018765 A8 WO2017018765 A8 WO 2017018765A8 KR 2016008111 W KR2016008111 W KR 2016008111W WO 2017018765 A8 WO2017018765 A8 WO 2017018765A8
Authority
WO
WIPO (PCT)
Prior art keywords
pulverized coal
melting furnace
injecting
injection method
method therefor
Prior art date
Application number
PCT/KR2016/008111
Other languages
English (en)
French (fr)
Other versions
WO2017018765A1 (ko
Inventor
이창형
정병환
김태훈
조일현
허금식
최응수
배진찬
강태인
Original Assignee
주식회사 포스코
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
Priority claimed from KR1020150106152A external-priority patent/KR101739861B1/ko
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to CN201680054310.9A priority Critical patent/CN108026596A/zh
Priority to EP16830798.1A priority patent/EP3330387B1/en
Publication of WO2017018765A1 publication Critical patent/WO2017018765A1/ko
Publication of WO2017018765A8 publication Critical patent/WO2017018765A8/ko

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • C21B13/002—Reduction of iron ores by passing through a heated column of carbon
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • 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
    • C21B5/006—Automatically controlling the process

Landscapes

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

Abstract

용융로의 장입물 상부에서 미분탄을 취입함으로써 용융로에서 발생하는 환원가스의 산화도를 개선하면서 광석 환원율을 향상시켜 용융로 내의 이산화탄소 비중은 낮춤과 동시에 일산화탄소 비중을 높여줄 수 있도록, 용융로의 장입물 상부에 적어도 하나 이상 설치되는 미분탄 취입 버너; 및 상기 미분탄 취입 버너로 공급되는 미분탄의 취입량을 제어하도록 제공된 제어부를 포함하는 용융로의 미분탄 취입장치 및, 상기 용융로에 설치된 미분탄 취입 버너를 이용하여 미분탄을 취입하는 단계;와 상기 미분탄의 용융로 취입 환경을 제어하는 제어단계를 포함하는 미분탄 취입방법을 제공한다.
PCT/KR2016/008111 2015-07-27 2016-07-25 용융로의 미분탄 취입장치 및 그 취입방법 WO2017018765A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680054310.9A CN108026596A (zh) 2015-07-27 2016-07-25 熔炉的粉煤吹入装置及其吹入方法
EP16830798.1A EP3330387B1 (en) 2015-07-27 2016-07-25 Apparatus for blowing dust coal of melting furnace

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2015-0106152 2015-07-27
KR1020150106152A KR101739861B1 (ko) 2015-07-27 2015-07-27 용융로의 미분탄 취입장치 및 그 취입방법
KR20150174150 2015-12-08
KR10-2015-0174150 2015-12-08

Publications (2)

Publication Number Publication Date
WO2017018765A1 WO2017018765A1 (ko) 2017-02-02
WO2017018765A8 true WO2017018765A8 (ko) 2017-03-16

Family

ID=57884840

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2016/008111 WO2017018765A1 (ko) 2015-07-27 2016-07-25 용융로의 미분탄 취입장치 및 그 취입방법

Country Status (3)

Country Link
EP (1) EP3330387B1 (ko)
CN (1) CN108026596A (ko)
WO (1) WO2017018765A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117004784B (zh) * 2023-10-07 2023-11-28 山西建龙实业有限公司 一种高炉喷吹煤粉用氮气的预热系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920010525B1 (ko) * 1990-09-08 1992-12-04 포항종합제철 주식회사 압축공기를 이용한 미분탄 취입라인의 관통방법
JPH0995724A (ja) * 1995-10-02 1997-04-08 Nkk Corp スクラップ溶解法
JP3349337B2 (ja) * 1996-04-02 2002-11-25 三菱重工業株式会社 湿式炉用バーナ
KR100584735B1 (ko) * 2001-10-11 2006-05-30 주식회사 포스코 콜 더스트 취입장치를 갖는 코렉스 용융로
KR100985238B1 (ko) * 2003-07-08 2010-10-04 주식회사 포스코 고로 가스이용률 변동에 따른 미분탄 취입량 제어장치
CN100455678C (zh) * 2006-01-25 2009-01-28 中冶赛迪工程技术股份有限公司 熔融还原炉喷吹煤粉工艺
CN101498554B (zh) * 2009-03-12 2010-09-15 北京首钢自动化信息技术有限公司 高炉串罐自动喷煤控制系统及方法
JP6015915B2 (ja) * 2012-09-20 2016-10-26 三菱重工業株式会社 高炉設備
EP2821509A1 (de) * 2013-07-01 2015-01-07 Siemens VAI Metals Technologies GmbH Entschwefelung von Gasen bei der Herstellung von Roheisen
CN104946841A (zh) * 2014-03-27 2015-09-30 宝山钢铁股份有限公司 利用corex炉进行炼铁的工艺

Also Published As

Publication number Publication date
CN108026596A (zh) 2018-05-11
WO2017018765A1 (ko) 2017-02-02
EP3330387A1 (en) 2018-06-06
EP3330387B1 (en) 2020-05-06
EP3330387A4 (en) 2018-06-20

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