KR960017879A - 고철 용해 방법 - Google Patents

고철 용해 방법 Download PDF

Info

Publication number
KR960017879A
KR960017879A KR1019950038675A KR19950038675A KR960017879A KR 960017879 A KR960017879 A KR 960017879A KR 1019950038675 A KR1019950038675 A KR 1019950038675A KR 19950038675 A KR19950038675 A KR 19950038675A KR 960017879 A KR960017879 A KR 960017879A
Authority
KR
South Korea
Prior art keywords
pulverized coal
ratio
oxygen
coke
scrap iron
Prior art date
Application number
KR1019950038675A
Other languages
English (en)
Other versions
KR100187693B1 (ko
Inventor
다쓰로 아리야마
다카노리 이노구치
마사히로 마쓰우라
히데토시 노다
다카시 스미가마
노보루 사카모토
Original Assignee
미요시 슌기치
닛폰고칸 가부시키가이샤
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 미요시 슌기치, 닛폰고칸 가부시키가이샤 filed Critical 미요시 슌기치
Publication of KR960017879A publication Critical patent/KR960017879A/ko
Application granted granted Critical
Publication of KR100187693B1 publication Critical patent/KR100187693B1/ko

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/00006—Liquid fuel burners using pure oxygen or O2-enriched air as oxidant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07002—Injecting inert gas, other than steam or evaporated water, into the combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07009—Injection of steam into the combustion chamber
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/32—Direct CO2 mitigation
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • 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
    • 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
    • Y02P10/20—Recycling
    • 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
    • Y02P10/32—Technologies related to metal processing using renewable energy sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Iron (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

용광로내에 철원인 고철과 코크스를 장입함과 동시에 송풍구부에 설치된 연소버너에서 미분탄과 산소를 로내로 취입하고, 이 미분탄과 산소의 취입에 있어서는 연소버너의 직경방향중심 또는 그 근방에서 미분탄을 취입함과 동시에 그 주위에서 산소를 취입하여 양자를 혼합시킴으로써 미분탄을 송풍처에 형성되는 연소대에서 급속연소시키고 이 연소가스의 현열로 고철을 용해하여 용선을 제조함과 동시에 연소가스를 유의하여 2차연소시키지 않고 연료용 가스로서 회수한다.

Description

고철 용해 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 고철 용해 방법에 사용되는 용광로의 개념도
제9도는 종래 기수의 송풍구부의 단면구조를 도시하는 설명도

Claims (14)

  1. 송풍구부(12)를 갖는 용광로(10)내에 고철과 코크스를 장입하는 공정과; 송풍구부(12)에 설치된 연소버너(13)의 직경방향중심 혹은 그 근방의 미분탄 취입부에서 미분탄을, 이 미분탄 취입부의 외측의 산소 취입부에서 산소를 용광로(10)내로 취입하는 공정과; 이 미분탄과 산소를 혼합하고 미분탄은 송풍처에 형성되는 연소대(14)에서 급속 연소하고 연소가스를 생성시킴으로써 이 연소가스의 헌열로 고철은 용해하고 용선이 제조되고 또 이 연소가스는 용광로(10)내에서 실질적으로 2차연소하지 않고 연료용가스로서 회수되는 것을 특징으로 하는 고철 용해 방법.
  2. 제1항에 있어서, 이 연소버너는 미분탄 취입부의 내측에 제2의 산소취입부를 갖고, 산소는 미분탄 취입부의 외측의 산소취입부와 이 제2산소취입부에서 취입되는것을 특징으로 하는 고철 용해 방법.
  3. 제2항에 있어서, 이 미분탄 취입은 제2탄소취입부의 둘레를 환상으로 둘러싸는 마분탄 취입부로부터 실행되는 것을 특징으로 하는 고철 용해방법.
  4. 제2항에 있어서, 이 미분탄 취입은 제2탄소취입부의 둘레에 간격을 두고 배치된 미분탄 취입부로부터 실행되는 것을 특징으로 하는 고철 용해방법.
  5. 제1항에 있어서, 이 코크스는 고로용 코크스인 것을 특징으로 하는 고철 용해 방법.
  6. 제3항에 있어서, 이 고로용 코크스는 20-80mm의 입자직경을 갖는 것을 특징으로 하는 고철 용해방법.
  7. 제1항에 있어서, 이 연소버너에서 취입되는 미분탄량(PC) (kg/hour)과 산소유량(O2)(Nm2/hour)은 적어도 0.7kg/Nm2이상의 [PC/O2] 비를 갖는 것을 특징으로 하는 고철 용해방법.
  8. 제7항에 있어서, 이 [PC/O2] 비는 적어도 1kg/Nm2이상인 것을 특징으로 하는 고철 용해방법.
  9. 제1항에 있어서, 연료비는 300kg/용선 톤 이상이며, 미분탄비와 코크스비의 중량비(미분탄비/코크스비)는 적어도 1 이상이다. 여기에서, 미분탄비는 이 연소버너(13)에서 취입되는 미분탄의 용선톤당 중량이며, 코크스비는 장입된 코크스의 용선톤당 중량이며, 연료비는 미분탄비와 코크스비를 더한 것인 것을 특징으로 하는 고철 용해방법.
  10. 제9항에 있어서, 이 연료비는 300-500kg/용선톤이며, 미분탄비와 코크스비의 중량비(미분탄비/코크스비)는 1-2.5인 것을 특징으로 하는 고철 용해방법.
  11. 제1항에 있어서, 이 산소는 순도가 95% 이상의 산소가스인 것을 특징으로 하는 고철 용해방법.
  12. 제1항에 있어서, 이 미분탄은 이사직경 74㎛ 이하를 80% 이상 포함하는 것을 특징으로 하는 고철 용해방법.
  13. 제1항에 있어서, 이 산소의 취입은 미분탄 취입부의 둘레를 환상으로 둘러싸는 산소취입부로부터 실행되는 것을 특징으로 하는 고철 용해방법.
  14. 제1항에 있어서, 이 산소의 취입은 미분탄 취입부의 둘레에 간격을 두고 배치된 복수의 산소취입부로부터 실행되는 것을 특징으로 하는 고철 용해방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950038675A 1994-11-02 1995-10-31 고철 용해 방법 KR100187693B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26946394 1994-11-02
JP94-269463 1994-11-02
JP11517795A JP3523716B2 (ja) 1994-11-02 1995-04-17 スクラップ溶解法
JP95-115177 1995-04-17

Publications (2)

Publication Number Publication Date
KR960017879A true KR960017879A (ko) 1996-06-17
KR100187693B1 KR100187693B1 (ko) 1999-06-01

Family

ID=26453743

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950038675A KR100187693B1 (ko) 1994-11-02 1995-10-31 고철 용해 방법

Country Status (7)

Country Link
US (1) US5698010A (ko)
EP (1) EP0710726B1 (ko)
JP (1) JP3523716B2 (ko)
KR (1) KR100187693B1 (ko)
AU (1) AU691663B2 (ko)
DE (1) DE69518297T2 (ko)
TW (1) TW404983B (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE309977T1 (de) 2000-09-29 2005-12-15 Bristol Myers Squibb Co Dynamische trennung von isomeren und getrennte isomere
US20070205543A1 (en) * 2006-03-06 2007-09-06 Lanyi Michael D Oxidant-swirled fossil fuel injector for a shaft furnace
KR100948927B1 (ko) * 2007-08-29 2010-03-23 주식회사 포스코 용철 제조용 풍구 및 이를 이용한 가스 취입 방법
US20090280442A1 (en) * 2008-05-05 2009-11-12 American Air Liquide Inc. Device And Method Of Combusting Solid Fuel With Oxygen
JP5411519B2 (ja) * 2009-01-30 2014-02-12 有限会社江口▲麺▼機製作所 麺帯の巻上げ方法及びその装置
AT510313B1 (de) * 2010-08-25 2013-06-15 Siemens Vai Metals Tech Gmbh Verfahren zur erhöhung der eindringtiefe eines sauerstoffstrahles
CN103528057B (zh) * 2013-11-06 2015-10-21 王立臣 煤粉多氧燃烧器
CN110205419A (zh) * 2019-06-28 2019-09-06 华北理工大学 一种高炉添加废钢冶炼节约成本的计算方法及系统
CN113088609B (zh) * 2021-04-13 2022-06-17 黎城太行钢铁有限公司 煤气双基还原炉及用煤气双基还原炉制造还原铁的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419165A1 (de) * 1973-04-25 1974-11-21 Centre Rech Metallurgique Verfahren und vorrichtung zum schmelzen von eisenschrott
BE798711A (fr) * 1973-04-25 1973-08-16 Centre Rech Metallurgique Procede et appareillage pour fondre des mitrailles ferreuses
JPS61195909A (ja) * 1985-02-26 1986-08-30 Kawasaki Steel Corp 転炉内での屑鉄溶解方法
GB8506655D0 (en) * 1985-03-14 1985-04-17 British Steel Corp Smelting shaft furnaces
JPS6227509A (ja) * 1985-07-26 1987-02-05 Nippon Kokan Kk <Nkk> 高炉操業方法
JPS63171818A (ja) * 1987-01-09 1988-07-15 Nkk Corp 酸素高炉の羽口
JPH01195225A (ja) * 1988-01-29 1989-08-07 Kobe Steel Ltd 製鉄原料の溶解方法
AT400181B (de) * 1990-10-15 1995-10-25 Voest Alpine Ind Anlagen Brenner für die verbrennung von feinkörnigen bis staubförmigen, festen brennstoffen
EP0563828B1 (en) * 1992-03-27 1999-12-22 Nippon Sanso Corporation Method of melting metals
DE4236510C2 (de) * 1992-10-26 1996-05-30 Mannesmann Ag Vorrichtung zum Einschmelzen von Schrott

Also Published As

Publication number Publication date
TW404983B (en) 2000-09-11
EP0710726B1 (en) 2000-08-09
EP0710726A1 (en) 1996-05-08
AU691663B2 (en) 1998-05-21
DE69518297D1 (de) 2000-09-14
JPH08188811A (ja) 1996-07-23
US5698010A (en) 1997-12-16
DE69518297T2 (de) 2001-01-18
KR100187693B1 (ko) 1999-06-01
AU3458195A (en) 1996-05-09
JP3523716B2 (ja) 2004-04-26

Similar Documents

Publication Publication Date Title
KR910000485B1 (ko) 미분탄 송풍용 용광로 풍구
RU2106413C1 (ru) Способ производства чугуна
KR930009968B1 (ko) 용해로에 의한 제철법
KR960017879A (ko) 고철 용해 방법
AU8954698A (en) Hot oxygen blast furnace injection system
KR970074954A (ko) 금속 산화물로부터 금속을 얻는 방법
BR8605001A (pt) Equipamento para producao de metais ferrosos ou nao a partir de minerios ou aglomerados auto-redutores e auto-fundentes ou nao
GB1473912A (en) Process and a device for smelting scrap and the like
CA2205812A1 (en) Scrap melting process
AU8486091A (en) Molten metal producing and refining method
KR930004473B1 (ko) 용광로 내에서 철을 제조하기 위한 방법
US20030090044A1 (en) Method and apparatus for melting metal in a shaft furnace
JP3395943B2 (ja) 冶金炉に用いられる燃焼バーナ
EP0562635B1 (en) Method of melting metals
JP3601799B2 (ja) 製鉄用溶解炉に用いられる燃焼バーナ
JP3523720B2 (ja) スクラップ溶解法
JPH11189816A (ja) 竪型鉄スクラップ溶解炉の操業方法
KR100627464B1 (ko) 고로조업에서 미분탄 연소성 향상장치
GB1097135A (en) Improvements relating to the production of pig iron
JPS62280318A (ja) 溶融還元法
Michard Blast Furnace Operation Process
JPH03241286A (ja) バーナによる冷鉄源の溶解方法および装置
JPH10204512A (ja) 竪型スクラップ溶解炉の操業方法
JPS62228405A (ja) 溶融還元炉
Krietz Refractory Injection for Blast Furnace Maintenance

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20091224

Year of fee payment: 12

LAPS Lapse due to unpaid annual fee