KR960701224A - METHOD AND APPARATUS FOR PRODUCING IRON - Google Patents

METHOD AND APPARATUS FOR PRODUCING IRON Download PDF

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Publication number
KR960701224A
KR960701224A KR1019950703611A KR19950703611A KR960701224A KR 960701224 A KR960701224 A KR 960701224A KR 1019950703611 A KR1019950703611 A KR 1019950703611A KR 19950703611 A KR19950703611 A KR 19950703611A KR 960701224 A KR960701224 A KR 960701224A
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KR
South Korea
Prior art keywords
reactor
gas
concentrate
combustion zone
post
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Application number
KR1019950703611A
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Korean (ko)
Inventor
롤프 말름스트룀
한스 엘반데르
Original Assignee
자이르키 안살라·아르자 레이노넨
에이. 아할스트롬 코포레이션
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Application filed by 자이르키 안살라·아르자 레이노넨, 에이. 아할스트롬 코포레이션 filed Critical 자이르키 안살라·아르자 레이노넨
Publication of KR960701224A publication Critical patent/KR960701224A/en

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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/0006Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B11/00Making pig-iron other than in blast furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/22Arrangements of air or gas supply devices
    • F27B3/225Oxygen blowing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/12Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/003Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an electric arc furnace
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2100/00Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44Removing particles, e.g. by scrubbing, dedusting

Abstract

본 발명은 반응기, 예를들면 전로(10)에 있는 용융조에서 농축물 또는 예비환원된 농축물을 용융환원시키므로서 철을 제조하는 방법 및 장치에 관한 것이다. 농축물 및 탄소성 환원제는 용융철 층(28) 및 그 위의 슬래그층(30)으로 이루어진 용융조에 공급된다. 고온 공기와 같은 산소함유개스는 배출되는 환원개스를 연소시켜 용융조를 가열시키기 위하여 슬래그층을 향하여 후-연소구역(37)으로 취관(38)에 의해 송풍된다. 연소공정에서 생성된 고온 배기개스는 반응기의 지봉에 있는 배출구(21)를 통하여 빠져나간다. 산소함유 개스는 후-연소구역으로 송풍되는데 이 구역은 송풍시에 슬래그 및 금속파편들이 튀어서 개스상에서 반응기의 냉각벽(11)에 도달하는 것을 방지하도록 냉각판넬(42)에 의해 반응기의 벽으로부터 보호된다.The present invention relates to a method and apparatus for producing iron by melt reduction of concentrates or pre-reduced concentrates in a reactor, for example a melting bath in converter 10. The concentrate and carbonaceous reducing agent are fed to a molten bath consisting of a molten iron layer 28 and a slag layer 30 thereon. Oxygen-containing gas, such as hot air, is blown by the duct 38 into the post-combustion zone 37 toward the slag layer to burn the discharged reducing gas to heat the molten bath. The hot exhaust gas produced in the combustion process exits through an outlet 21 in the reactor rod. The oxygen-containing gas is blown into the post-combustion zone, which is protected from the walls of the reactor by the cooling panel 42 to prevent slag and metal debris from splashing and reaching the reactor's cooling wall 11 on the gas during the blowing. do.

Description

철 제조방법 및 장치(METHOD AND APPARATUS FOR PRODUCING IRON)METHOD AND APPARATUS FOR PRODUCING IRON

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

내용없음No content

Claims (11)

1- 농축물 또는 예비환원되어 부분적으로 용융된 농축물 및 석탄과 같은 탄소성 환원제가 용융철층 및 슬래그층으로 이루어진 용융조에 공급되고; - 고온 공기와 같은 산소함유개스가 배출되는 환원개스의 연소구역 주위로 이송되어 용융조를 가열하기 위하여 슬래그층을 향한 하나 또는 수개의 취관에 의해 소위 후-연소구역이라 불리는 곳으로 송풍되며; - 생성된 고온 배기개스가 반응기의 지붕에 있는 출구를 통하여 배출되는, 반응기, 예를 들면 전로의 용융조에서 농축물 또는 예비환원된 송풍시에 튀게되는 슬래그와 금속파편들이 개스상에서 반응기의 냉각되지 않은 벽에 도달하는 것을 방지하기 위하여 상기 구역이 냉각 판넬에 의해 반응기 벽으로부터 보호되는 것을 특징으로 하는 방법.1- Concentrate or pre-reduced partially melted concentrate and carbonaceous reducing agent such as coal are fed to a molten bath consisting of a molten iron layer and a slag layer; An oxygen-containing gas such as hot air is blown around the combustion zone of the reducing gas to be discharged and blown into what is called a post-combustion zone by one or several blows towards the slag layer to heat the molten bath; Slag and metal debris splashing during the concentrate or pre-reduced blowing in the reactor's melt bath, for example, through which the resulting hot exhaust gas is discharged through the outlet at the roof of the reactor, is not cooled in the reactor The zone is protected from the reactor wall by a cooling panel to prevent it from reaching the undesired wall. 제1항에 있어서, 농축물이 배기개스용 배출구 위에 동심적으로 배치된 화염실을 거쳐 반응실로 도입되고 반응기로부터의 배기개스는 화염실에 있는 농축물의 최소한 부분적인 용해 및 예비환원을 위하여 화염실로 통과하는 것을 특징으로 하는 방법.The process of claim 1 wherein the concentrate is introduced into the reaction chamber via a flame chamber concentrically arranged above the exhaust gas outlet and the exhaust gas from the reactor is introduced into the flame chamber for at least partial dissolution and preliminary reduction of the concentrate in the flame chamber. Passing through. 제2항에 있어서, 고온 산소함유 개스가 접선적으로 송풍되어 배기개스가 후-연소구역 및 화염실에서 상향 소용돌이를 형성하도록 하는 것을 특징으로 하는 방법.3. The method of claim 2, wherein the hot oxygen-containing gas is tangentially blown such that the exhaust gas forms an upward vortex in the post-combustion zone and the flame chamber. 제2항에 있어서, 화염실로부터의 배기개스가 화염실로 공급되는 농축물을 예열시키기 위하여 화염실 위에 배치된 반응기로 통과되는 것을 특징으로 하는 방법.3. The process of claim 2, wherein the exhaust gas from the flame chamber is passed to a reactor disposed above the flame chamber to preheat the concentrate fed to the flame chamber. 제1항에 있어서, 후-연소구역이 수-냉각 판넬에 의해 반응기의 벽으로부터 보호되는 것을 특징으로 하는 방법.The method of claim 1 wherein the post-combustion zone is protected from the walls of the reactor by a water-cooling panel. -농축물 또는 예비환원 되어 부분적으로 용융된 농축물용의 하나 또는 수개의 입구 및 석탄과 같은 탄소성 환원제용의 하나 또는 수개의 입구, -배출되는 환원개스의 연소구역 주위로 이송되도록 고온개스와 같은 산소함유개스를 슬래그의 표면(40)위에 반응기에 있는 소위 후-연소구역이라 불리는 곳으로 도입하여 용융조를 가열시키기 위한 하나 또는 수개의 고온개스취관(38), 및 - 후- 연소 구역위의 반응기 지붕에 위치한, 후-연소 공정에서 생성된 고온 배기개스용의 최소한 하나의 개스 배출구(12)를 포함하는 반응기, 예를 들면 전로(10)에 있는, 용융철층(28) 및 슬래그층(30)으로 이루어진 용융주에서 농축물 또는 예비환원된 농축물을 용융환원시킴으로써 철을 제조하는 장치에 있어서, 냉각판넬(42)로 이루어진 보호물이 슬래그층(30)과 배기개스 배출구(12)사이의 지역에 있는 반응기의 타일벽(11)로부터 후-연소구역(37)을 보호하도록 배치되는 것을 특징으로 하는 장치.One or several inlets for concentrates or pre-reduced and partially melted concentrates and one or several inlets for carbonaceous reducing agents such as coal, hot gases such as hot gas to be transported around the combustion zone of the discharged reducing gas One or several hot gas tubes 38 for heating the melting bath by introducing an oxygen-containing gas into the so-called post-combustion zone in the reactor on the surface 40 of the slag, and over the post-combustion zone. Molten iron layer 28 and slag layer 30 in a reactor, for example a converter 10, located at the reactor roof, including at least one gas outlet 12 for the hot exhaust gas produced in the post-combustion process. In the apparatus for producing iron by melting or reducing the concentrate or pre-reduced concentrate in the molten liquor consisting of), the protective material consisting of the cooling panel 42 discharges the slag layer 30 and exhaust gas And is arranged to protect the post-combustion zone (37) from the tile wall (11) of the reactor in the region between the spheres (12). 제6항에 있어서, 개스배출구(12)와 동심적으로 배치된 직립원통형 판넬표면(42)로 형성되는 것을 특징으로 하는 장치.7. An apparatus according to claim 6, characterized in that it is formed of an upright cylindrical panel surface (42) arranged concentrically with the gas outlet (12). 제6항에 있어서, 보호물이 원추대의 형태를 가지며 개스배출구와 동심적으로 배치된 판넬표면으로 형성되는 것을 특징으로 하는 장치.7. A device according to claim 6, wherein the shield is in the form of a truncated cone and formed of a panel surface concentric with the gas outlet. 제6항에 있어서, 보호물이 평면 판넬 표면으로 형성되는 것을 특징으로 하는 장치.7. The device of claim 6, wherein the shield is formed with a flat panel surface. 제6항에 있어서, 보호물의 상부가 반응기의 지붕에 있는 개스 배출구(12) 둘레에 배치되는 것을 특징으로 하는 장치.7. The device according to claim 6, wherein the top of the shield is disposed around the gas outlet (12) in the roof of the reactor. 제6항에 있어서, 보호물의 하부가 슬래그 표면(40)에 도달하는 것을 특징으로 하는 장치.7. Device according to claim 6, characterized in that the lower part of the blank reaches the slag surface (40). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950703611A 1993-02-26 1994-01-21 METHOD AND APPARATUS FOR PRODUCING IRON KR960701224A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI930864A FI93027C (en) 1993-02-26 1993-02-26 Method and apparatus for making iron
FI930864 1993-02-26
PCT/FI1994/000023 WO1994019497A1 (en) 1993-02-26 1994-01-21 Method and apparatus for producing iron

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KR960701224A true KR960701224A (en) 1996-02-24

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EP (1) EP0686204A1 (en)
JP (1) JPH08506858A (en)
KR (1) KR960701224A (en)
CN (1) CN1121358A (en)
AU (1) AU673049B2 (en)
BR (1) BR9406272A (en)
CA (1) CA2156631A1 (en)
FI (1) FI93027C (en)
TW (1) TW260711B (en)
WO (1) WO1994019497A1 (en)
ZA (1) ZA94772B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10195513A (en) * 1996-12-27 1998-07-28 Kobe Steel Ltd Production of metallic iron
AUPO944697A0 (en) * 1997-09-26 1997-10-16 Technological Resources Pty Limited A method of producing metals and metal alloys
AUPP442598A0 (en) * 1998-07-01 1998-07-23 Technological Resources Pty Limited Direct smelting vessel
AUPP442698A0 (en) * 1998-07-01 1998-07-23 Technological Resources Pty Limited A direct smelting process
EP1740728B8 (en) * 2004-04-26 2014-04-02 Technological Resources Pty Limited Metallurgical processing installation
KR101419404B1 (en) * 2012-07-30 2014-07-15 주식회사 포스코 Heat treatment equipment and method for heat treatment of material us the same
CN112725645A (en) * 2020-12-22 2021-04-30 大冶市兴进铝业有限公司 Novel aluminium alloy preparation device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7928208U1 (en) * 1979-10-04 1980-01-03 Thyssen Ag Vorm. August Thyssen Huette, 4100 Duisburg DEVICE FOR CARRYING OUT METALLURGICAL REACTIONS IN A PAN
DE3427087C1 (en) * 1984-07-19 1986-04-10 Mannesmann AG, 4000 Düsseldorf Metallurgical vessel
SE9103412L (en) * 1990-11-20 1992-05-21 Mitsubishi Materials Corp STORAGE WATER-COOLED COAT FOR OVEN
DE4103508A1 (en) * 1991-02-06 1992-08-13 Kortec Ag METHOD AND DEVICE FOR COOLING VESSEL PARTS FOR CARRYING OUT PYRO METHODS, IN PARTICULAR METALLURGICAL TYPE
AU682578B2 (en) * 1994-02-16 1997-10-09 University Of Melbourne, The Internal refractory cooler

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Publication number Publication date
ZA94772B (en) 1995-08-04
JPH08506858A (en) 1996-07-23
CA2156631A1 (en) 1994-09-01
TW260711B (en) 1995-10-21
AU673049B2 (en) 1996-10-24
CN1121358A (en) 1996-04-24
FI93027C (en) 1995-02-10
WO1994019497A1 (en) 1994-09-01
AU5885494A (en) 1994-09-14
BR9406272A (en) 2002-06-18
FI930864A0 (en) 1993-02-26
EP0686204A1 (en) 1995-12-13
FI930864A (en) 1994-08-27
FI93027B (en) 1994-10-31

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