[go: up one dir, main page]

KR880014113A - 환원제련을 통한 제강방법 - Google Patents

환원제련을 통한 제강방법 Download PDF

Info

Publication number
KR880014113A
KR880014113A KR870004568A KR870004568A KR880014113A KR 880014113 A KR880014113 A KR 880014113A KR 870004568 A KR870004568 A KR 870004568A KR 870004568 A KR870004568 A KR 870004568A KR 880014113 A KR880014113 A KR 880014113A
Authority
KR
South Korea
Prior art keywords
molten metal
injecting
molten
gas
charging
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
KR870004568A
Other languages
English (en)
Other versions
KR930009972B1 (ko
Inventor
아끼지까 오제끼
겐죠 야마다
가쯔히로 이와사끼
Original Assignee
가또 야수다까
니홍 고강 가부시기가이샤
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 to JP61008091A priority Critical patent/JPS62167811A/ja
Priority to US07/045,624 priority patent/US4792352A/en
Priority to AU72483/87A priority patent/AU601976B2/en
Priority to CA000536256A priority patent/CA1330623C/en
Priority to KR1019870004568A priority patent/KR930009972B1/ko
Application filed by 가또 야수다까, 니홍 고강 가부시기가이샤 filed Critical 가또 야수다까
Priority to DE3750398T priority patent/DE3750398T2/de
Priority to AT87106920T priority patent/ATE110114T1/de
Priority to EP87106920A priority patent/EP0290650B1/en
Publication of KR880014113A publication Critical patent/KR880014113A/ko
Application granted granted Critical
Publication of KR930009972B1 publication Critical patent/KR930009972B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • 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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the 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
    • C21B13/0006—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

내용 없음

Description

환원제련을 통한 제강방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명의 방법에 사용하기 위한 장치의 개략도. 제 2 조는 본 발명의 석탄 단위 소비량과 용선내의 탄소 함유량 사이의 관계를 도시하는그래프. 제 3 도는 본 발명의 연소후 비율과 용선내의 탄소 함유량 사이의 관계를 도시하는 그래프.

Claims (12)

  1. 컨버어러형 반응용기내에 0.05 내지 1%의 탄소를 함유하는 용융 금속을 준비하는 단계와 : 0.05내지 1.0(N㎥/min/T: 는 1톤의 용융금속을 나타냄)의 비율로 교반 개스와, 산소 개스를 용융금속에 주입하는동시에 철광석과 석탄을 용융 금속에 연속장입하여 철광석을 환원시키는 단계와 ; 생성된 용강과 슬랙을 배출하는 단계를 포함하는 것을 특징으로하는 환원제련을 통한 제강방법.
  2. 제 1 항에 있어서, 용융 금속을 준비하는 단계는 용선을 탈탄하기 위해 용선위에 산소 개스를 주입하는 것을 특징으로 하는 제강방법.
  3. 제 1 항에 있어서, 용융 금속을 준비하는 단계는 0.05 내지 0.7%의 탄소를 함유하는 용융 금속을 준비하는 것을 특징으로 하는 제강방법.
  4. 제 1 항에 있어서, 교반 개스를 주입하는 단계를 반응 용기의 저부에 있는 한 세트의 인입구를 통해교반개스를 주입하는 것을 특징으로 하는 제강방법.
  5. 제 1 항에 있어서, 교반 개스는 아르곤, 질소, 산소 그리고 반응 용기에서 생성된 공정 개스로 구성되는 그룹으로부터 선택된 최소한 하나인 것을 특징으로 하는 제강방법.
  6. 제 1 항에 있어서, 교반 개스를 주입하는 단계는 0.1 내지 1.0 (N㎥/min/T)의 비율로 교반개스를 주입하는 것을 특징으로 하는 제강방법.
  7. 제 1 항에 있어서, 배출하는 단계는 생성된 용융 금속과 슬랙을 연속적으로 배출하는 것을 특징으로 하는 제강방법.
  8. 제 1 항에 있어서, 배출하는 단계는 생성된 용융 금속과 슬랙을 주기적으로 배출하는 것을 특징으로 하는 제강방법.
  9. 제 1 항에 있어서, 용강은 1%이하의 탄소를 함유하는 것을 특징으로 하는 제강방법.
  10. 제 1 항에 있어서, 석탄을 장입하는 단계는 용강의 톤당 500 내지 800㎏의 비율로 석탄을 장입하는 것을 특징으로 하는 제강방법.
  11. 제 1 항에 있어서, 철광석을 장입하는 단계는 용강의 톤당 1,400 내지 1,500㎏의 비율로 철광석을 장입하는 것을 특징으로 하는 제강방법.
  12. 제 1 항에 있어서, 산소 개스를 주입하는 단계는 450 내지 500(N㎥/min/용강의 톤)의 비율로 산소개스를 주입하는 것을 특징으로 하는 제강방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870004568A 1986-01-20 1987-05-09 철광석의 환원 제련을 통한 제강방법 Expired - Fee Related KR930009972B1 (ko)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP61008091A JPS62167811A (ja) 1986-01-20 1986-01-20 溶融還元製鋼法
US07/045,624 US4792352A (en) 1986-01-20 1987-05-01 Method for manufacturing steel through smelting reduction
AU72483/87A AU601976B2 (en) 1986-01-20 1987-05-04 Method for manufacturing steel through smelting reduction
CA000536256A CA1330623C (en) 1986-01-20 1987-05-04 Method for manufacturing steel through smelting reduction
KR1019870004568A KR930009972B1 (ko) 1986-01-20 1987-05-09 철광석의 환원 제련을 통한 제강방법
DE3750398T DE3750398T2 (de) 1986-01-20 1987-05-13 Verfahren zur Stahlherstellung durch Schmelzreduktion.
AT87106920T ATE110114T1 (de) 1986-01-20 1987-05-13 Verfahren zur stahlherstellung durch schmelzreduktion.
EP87106920A EP0290650B1 (en) 1986-01-20 1987-05-13 Method for manufacturing steel through smelting reduction

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61008091A JPS62167811A (ja) 1986-01-20 1986-01-20 溶融還元製鋼法
CA000536256A CA1330623C (en) 1986-01-20 1987-05-04 Method for manufacturing steel through smelting reduction
KR1019870004568A KR930009972B1 (ko) 1986-01-20 1987-05-09 철광석의 환원 제련을 통한 제강방법

Publications (2)

Publication Number Publication Date
KR880014113A true KR880014113A (ko) 1988-12-22
KR930009972B1 KR930009972B1 (ko) 1993-10-13

Family

ID=27167707

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870004568A Expired - Fee Related KR930009972B1 (ko) 1986-01-20 1987-05-09 철광석의 환원 제련을 통한 제강방법

Country Status (8)

Country Link
US (1) US4792352A (ko)
EP (1) EP0290650B1 (ko)
JP (1) JPS62167811A (ko)
KR (1) KR930009972B1 (ko)
AT (1) ATE110114T1 (ko)
AU (1) AU601976B2 (ko)
CA (1) CA1330623C (ko)
DE (1) DE3750398T2 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100435563B1 (ko) * 2001-12-11 2004-06-10 주식회사 포스코 전기로에서 탈탄속도 향상을 통한 용강제조방법

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02221336A (ja) * 1989-02-21 1990-09-04 Nkk Corp Ｎｉ鉱石の溶融還元法
RU2135601C1 (ru) * 1998-01-19 1999-08-27 ОАО "Западно-Сибирский металлургический комбинат" Способ выплавки стали в конвертере
AUPQ152299A0 (en) * 1999-07-09 1999-08-05 Technological Resources Pty Limited Start-up procedure for direct smelting process
AUPQ599400A0 (en) 2000-03-03 2000-03-23 Technological Resources Pty Limited Direct smelting process and apparatus
RU2180006C2 (ru) * 2000-04-11 2002-02-27 ОАО "Западно-Сибирский металлургический комбинат" Способ передела чугуна в конвертере
KR101067476B1 (ko) * 2003-12-26 2011-09-27 재단법인 포항산업과학연구원 용선의 탄소비율 예측방법
CN102787201A (zh) * 2012-08-31 2012-11-21 首钢京唐钢铁联合有限责任公司 煤作为炼钢压渣剂的用途及其抑制钢渣泡的方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252790A (en) * 1956-06-27 1966-05-24 Union Carbide Corp Preparation of metals and alloys
DE2007373B2 (de) * 1970-02-18 1973-05-03 Eisenwerk-Gesellschaft Maximilianshütte mbH, 8458 Sulzbach-Rosenberg Verfahren und konverter zum herstellen ferritischer chromstaehle
BE781241A (fr) * 1971-05-28 1972-07-17 Creusot Loire Procede d'affinage des aciers allies contenant du chrome et plus specialement des aciers inoxydables
US3854932A (en) * 1973-06-18 1974-12-17 Allegheny Ludlum Ind Inc Process for production of stainless steel
GB1586762A (en) * 1976-05-28 1981-03-25 British Steel Corp Metal refining method and apparatus
DE2737832C3 (de) * 1977-08-22 1980-05-22 Fried. Krupp Huettenwerke Ag, 4630 Bochum Verwendung von im Querschnitt veränderlichen Blasdüsen zur Herstellung von rostfreien Stählen
US4316739A (en) * 1979-07-16 1982-02-23 Midrex Corporation Method for producing molten iron
JPS5644705A (en) * 1979-09-20 1981-04-24 Nippon Kokan Kk <Nkk> Direct reducing method of ore in converter
LU82227A1 (de) * 1980-03-05 1981-10-30 Arbed Verfahren und einrichtung zum herstellen von fluessigem eisen
AU8474782A (en) * 1981-06-19 1982-12-23 British Steel Corp. Refining of steel from pig iron
ZA827820B (en) * 1981-10-30 1983-08-31 British Steel Corp Production of steel
NL8201945A (nl) * 1982-05-12 1983-12-01 Hoogovens Groep Bv Werkwijze en inrichting voor de vervaardiging van vloeibaar ijzer uit oxydisch ijzererts.
US4497656A (en) * 1982-06-23 1985-02-05 Pennsylvania Engineering Corporation Steel making method
SE435732B (sv) * 1983-03-02 1984-10-15 Ips Interproject Service Ab Forfarande for framstellning av rajern ur jernslig

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100435563B1 (ko) * 2001-12-11 2004-06-10 주식회사 포스코 전기로에서 탈탄속도 향상을 통한 용강제조방법

Also Published As

Publication number Publication date
JPS62167811A (ja) 1987-07-24
US4792352A (en) 1988-12-20
AU601976B2 (en) 1990-09-27
AU7248387A (en) 1988-11-10
CA1330623C (en) 1994-07-12
EP0290650B1 (en) 1994-08-17
DE3750398T2 (de) 1995-01-19
ATE110114T1 (de) 1994-09-15
KR930009972B1 (ko) 1993-10-13
EP0290650A1 (en) 1988-11-17
DE3750398D1 (de) 1994-09-22

Similar Documents

Publication Publication Date Title
BR9000777A (pt) Processo para fusao redutora de minerio de ni
CA2024466A1 (en) Method of operating in-bath smelting reduction furnace
MY123336A (en) A direct smelting process
KR940008926B1 (ko) 일시저장 용기를 갖춘 제강장치 및 이를 이용하는 제강법
CA1188518A (en) Metal refining processes
GB1057805A (en) Process and apparatus for the continuous refining of metals
MY127238A (en) A direct smelting process and apparatus
KR880014113A (ko) 환원제련을 통한 제강방법
EP1098997A4 (en) DIRECT MELTING
ATE73172T1 (de) Verfahren zum schmelzen und reduzieren von chromerzen.
WO1999046414A3 (en) Process for the desulphurization of blister copper
CA1205290A (en) Method of increasing the cold material charging capacity in the top-blowing production of steel
JPS6112812A (ja) ステンレス鋼の脱炭方法
SU1271887A1 (ru) Способ выплавки стали
Kai-wen Development of Bottom-Blown Oxygen Converters
JPS56123310A (en) Integrated steel making method
Heinke et al. Developments In Refining Stainless Steel Melts By the Krupp Combined Blowing Process
SU969744A1 (ru) Способ выплавки стали
SU1022994A1 (ru) Способ выплавки стали
JPS5623213A (en) Melting method of low phosphorus steel in oxygen top blowing steel making method
Fugman et al. The Conversion of Vanadium Pig Iron in a Basic Oxygen Furnace Using Combined Blast
UA39117C2 (uk) Спосіб рафінування металу
Aizatulov et al. Melting Steel in a 160 t Basic Oxygen Furnace With the Proportion of Scrap Increased to 40-100% in the Metal Charge
FITZGERALD PROCESS DEVELOPMENTS IN THE IRON AND STEEL INDUSTRY.(FRANK SCOTT RUSSELL MEMORIAL LECTURE 1983)
JPS6452016A (en) Method for controlling molten steel temperature in vacuum ladle refining for high chromium steel

Legal Events

Date Code Title Description
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

A201 Request for examination
PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

St.27 status event code: A-2-2-Q10-Q13-nap-PG1605

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 19961014

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 19961014