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KR900008050A - 철광석 용해 환원 방법 및 장치 - Google Patents

철광석 용해 환원 방법 및 장치 Download PDF

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Publication number
KR900008050A
KR900008050A KR1019880015891A KR880015891A KR900008050A KR 900008050 A KR900008050 A KR 900008050A KR 1019880015891 A KR1019880015891 A KR 1019880015891A KR 880015891 A KR880015891 A KR 880015891A KR 900008050 A KR900008050 A KR 900008050A
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KR
South Korea
Prior art keywords
gas
iron ore
reduction
furnace
dissolution
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Application number
KR1019880015891A
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English (en)
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KR910006037B1 (ko
Inventor
겐지 다까하시
가쯔히로 이와사끼
시게루 이노우에
하루요시 다나베
마사히로 가와까미
겐죠 야마다
오사무 데라다
Original Assignee
니이미야 유
앤 케이케이 코퍼레이션
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Priority claimed from JP62303940A external-priority patent/JP2638861B2/ja
Priority claimed from JP63028584A external-priority patent/JPH01205017A/ja
Priority claimed from JP2858688A external-priority patent/JP2668913B2/ja
Application filed by 니이미야 유, 앤 케이케이 코퍼레이션 filed Critical 니이미야 유
Publication of KR900008050A publication Critical patent/KR900008050A/ko
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Publication of KR910006037B1 publication Critical patent/KR910006037B1/ko
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • 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
    • C21B13/143—Injection of partially reduced ore into a molten bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/029—Introducing coolant gas in the shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

내용 없음

Description

철광석 용해 환원 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 철광석 용해환원장치의 일실시예를 에시하는 블록다이아그램.
제2도는 제1도에서 도시한 장치의 부분을 구성하는 용해환원로의 가스유동을 예시하는 설명도.
제3도는 본 발명의 측풍공과 지부풍공 사이의 위치관계를 예시하는 설명도.

Claims (14)

  1. 철광석을 예열 및 예비환원 하는 단계와 예열 및 에비환원된 철광석, 탄소질재료 및 용융제를 용해환원로에 장입하는 단계와 산소가스를 탈탄노즐과 포스트-컴버스천 조즐을 갖는 조정 송풍산소랜스를 통해 용해환원속으로 송풍하는 단계와 상기 노정송풍산소렌스의 한 단부는 슬랙층의 상부레벨과 슬랙층의 하부 레벨 사이의 배치되었으며, 교반가스를 상기 용해환원로의 측벽에 배치된 최소한 하나의 측풍공과 상기 용해환원로의 저부벽에 배치된 최소한 하나의 저부통공을 통해, 상기 최소한 하나의 측풍공을 통해 들어돈 최소한 일부의 교반가스가 상기 최소한 하나의 저부풍공을 통해 들어온 교반가스에 의해 용기된 용융금속의 부분을 히트할 수 있도록 송풍하는 단계와 상기 교반가스는 Ar, N2, CO, CO2및 프로세스가스로 구성된 군에서부터 선택되는 최소한 하나의 가스로 구성되며 다음식, OD = (H2O + CO2) /(H2+ H2O + CO + CO2) 으로 표시되는 상기 용해환원로의 노내가스의 OD 가 0.5내지 1.0의 범위를 갖조록 상기용해환원로에송풍되는 상기 산소가스와 교반가스의 유동속도를 제어하는 단계로 구성되는 것을 특징으로 하는 철광석 용해 환원방법.
  2. 제1항에 있어서, 상기 OD는 0.7내지 1.0의 범위를 갖는 것을 특징으로 하는 철광석 용해 환원방법.
  3. 제1항에 있어서, 상기 노내가스는 용해환원로에서부터 배출될때 300 내지 1,300의 온도를 갖는 가스를 포함하는것을 특징으로 하는 철광석 용해환원 방법.
  4. 제1항에 있어서, 상기 용해환원로의 외부에서 상기 노내가스의 열손실을 야기함이 없이 상기 노내가스에서 부터 분진을 제거한 다음, 상기 노내가스를 에열 및 예비환원속으로 들여보내는 단계를 포함하는 것을 특징으로 하는 철광석 용해환원 방법.
  5. 제1항에있어서, 상기 철광석을 용해환원로에서 배출된 배기가스로 예열하는 단계를 포함하는 것을 특징으로 하는 철광석 용해환원 방법.
  6. 제1항에 있어서, 상기 노내가스를 0.5 OD이하의 가스로입 글이딩 하는 단계와 예열및 예비환원로내에서 상기 철광석을 상기 업 그레이딩된 가스로 에비환원시키는 단계를 포함하는 것을 특징으로하는 철광석 용해환원방법.
  7. 제6항에 있어서, 상기 노내가스를 입그레이팅하는 단계는 가스를 탄소질재료, 증기 및 연료오일로 구성된 군으로부터 선택되는 최소한 하나의 가스업그레이딩제로 업그레이딩하는 과정을 포함하는 것을 특징으로 하는 철광석 용해환원방법.
  8. 제6항에 있어서, 상기 노내가스를 업그레이딩하는 단계는 상기 업 그레이딩 가스를 용해환원로의 상부벽과 상부측 벽 부분, 가스배기관 및, 예열 및 예비환원로벽으로 구성된 군으로부터 선택되는 최소한 한 지점을 통해 송풍하는 과정을 포함하는 것을 특징으로하는 철광석 용해환원 방법.
  9. 제6항에 있어서, 상기 노내가스를 업그레이딩 하는 단계는 상기 업 그레이딩 가스를 가스업 그레이딩 풍공을 통해 운반 가스와 함께 송풍하는 과정을 포함하는 것을 특징으로 하는 철광석 용해환원 방법.
  10. 제9항에 있어서, 상기 운반가스는 Ar, N2, CO, CO2및 프로세스가스로 구성된 군으로부터 선택되는 최소한 하나의 가스로구성되는 것을 특징으로 하는 철광석 용해환원방법.
  11. 철광석을 에열 및 예비환원시키는 예열 및 예비환원로와 예열 및 예비환원된 철광석, 탄소질제료 및 용융제를 장입하여 예열 및 예비환원된 철광석을 용해 및 환원시키는 용해환원로와 산소가스를 용해환원로속으로 송풍하도록 탈탄노즐과 포스트-컴버스천 노즐을 갖는 조정송풍산소랜스와 교반가스를, 최소한 하나의 축풍공을 통해 들어온 최소한 일부의 교반가스가 최소한 하나의 저부풍공을 통해 들어온 교반가스에 의해 용기된 용융금속의 부분을 히트할 수 있도록 송풍하는, 용해환원로의 측벽에 배치된 최소한 하나의 축풍공과 용해환원로의 저부에배치된 최소한 하나의 저부풍공으로 구성되는 것을 특징으로 하는 철광석 용해환원장치.
  12. 제11항에 있어서, 용해환원로에서 발생된 노내가스에 가스업그레이팅제를 공급하는 최소한 하나의 가스업 그레이딩 풍공을 포함하는 것을 특징으로 하는 철광석 용해 환원장치.
  13. 제12항에 있어서, 상기 최소한 하나의 가스업 그레이딩 풍공은 용해환원로의 상부벽과 상부측벽 부분, 가스배기관 및 예열 및 예비환원로의 풍함으로 구성된 군으로부터 선택되는 최소한 한 부분에 배치된 것을 특징으로 하는 철광석 용해환원장치.
  14. 제11항에 있어서, 상기 에멸 및 예비환원로는 유체 베드형로, 샤프트형로 및 회전가마형로로 구성된 군으로부터 선택되는 어떤 하나의 노로구성되는 것을 특징으로 하는 철광석 용해환원장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880015891A 1987-11-30 1988-11-30 철광석의 용융환원방법 및 그 장치 Expired KR910006037B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP303940/87 1987-11-30
JP62303940A JP2638861B2 (ja) 1987-11-30 1987-11-30 溶融環元法
JP63028584A JPH01205017A (ja) 1988-02-09 1988-02-09 溶融還元法
JP2858688A JP2668913B2 (ja) 1988-02-09 1988-02-09 溶融還元法
JP28584/88 1988-02-09
JP28586/88 1988-02-09

Publications (2)

Publication Number Publication Date
KR900008050A true KR900008050A (ko) 1990-06-02
KR910006037B1 KR910006037B1 (ko) 1991-08-12

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ID=27286248

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KR1019880015891A Expired KR910006037B1 (ko) 1987-11-30 1988-11-30 철광석의 용융환원방법 및 그 장치

Country Status (7)

Country Link
US (2) US5000784A (ko)
EP (1) EP0318896B1 (ko)
KR (1) KR910006037B1 (ko)
AT (1) ATE101655T1 (ko)
BR (1) BR8806278A (ko)
CA (1) CA1337241C (ko)
DE (1) DE3887838T2 (ko)

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AUPQ346399A0 (en) 1999-10-15 1999-11-11 Technological Resources Pty Limited Stable idle procedure
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CN112011661A (zh) * 2020-08-07 2020-12-01 新疆八一钢铁股份有限公司 一种欧冶炉风口高效节氮方法
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Publication number Publication date
CA1337241C (en) 1995-10-10
AU2491688A (en) 1989-06-01
EP0318896A2 (en) 1989-06-07
DE3887838D1 (de) 1994-03-24
EP0318896A3 (en) 1991-03-27
US5065985A (en) 1991-11-19
AU608091B2 (en) 1991-03-21
ATE101655T1 (de) 1994-03-15
BR8806278A (pt) 1989-08-15
US5000784A (en) 1991-03-19
DE3887838T2 (de) 1994-07-07
KR910006037B1 (ko) 1991-08-12
EP0318896B1 (en) 1994-02-16

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