KR100862086B1 - 제선공정에서 생성되는 슬래그의 유동성 향상방법 - Google Patents
제선공정에서 생성되는 슬래그의 유동성 향상방법 Download PDFInfo
- Publication number
- KR100862086B1 KR100862086B1 KR1020020039628A KR20020039628A KR100862086B1 KR 100862086 B1 KR100862086 B1 KR 100862086B1 KR 1020020039628 A KR1020020039628 A KR 1020020039628A KR 20020039628 A KR20020039628 A KR 20020039628A KR 100862086 B1 KR100862086 B1 KR 100862086B1
- Authority
- KR
- South Korea
- Prior art keywords
- slag
- melting furnace
- charging
- wollastonite
- basicity
- Prior art date
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Classifications
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/008—Use of special additives or fluxing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/02—General features in the manufacture of pig-iron by applying additives, e.g. fluxing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
Claims (2)
- 광석과 부원료인 석회석 또는 백운석을 환원로에 장입하는 단계와,상기 환원로에서 생성된 환원철을 용융로에 장입하는 단계와,상기 용융로에 규회석을 장입하여 슬래그의 염기도는 상승시키고 생성된 슬래그의 용융온도는 낮춰 유동성이 양호한 슬래그의 생성을 돕도록 하는 단계, 및상기 용융로에 일반탄을 장입하여 상기 환원철과 반응시켜 점도가 낮은 유동성을 갖는 슬래그와 선철을 생성하는 단계를 포함하는 것을 특징으로 하는 제선공정에서 생성되는 슬래그의 유동성 향상방법.
- 제 1항에 있어서,상기 규회석의 중량은 상기 용융로에 장입하는 상기 부원료의 중량에 대해 그 중량이 10%에서 30%까지 비율인 것을 특징으로 하는 제선공정에서 생성되는 슬래그의 유동성 향상방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020039628A KR100862086B1 (ko) | 2002-07-09 | 2002-07-09 | 제선공정에서 생성되는 슬래그의 유동성 향상방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020039628A KR100862086B1 (ko) | 2002-07-09 | 2002-07-09 | 제선공정에서 생성되는 슬래그의 유동성 향상방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040006103A KR20040006103A (ko) | 2004-01-24 |
KR100862086B1 true KR100862086B1 (ko) | 2008-10-09 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020020039628A KR100862086B1 (ko) | 2002-07-09 | 2002-07-09 | 제선공정에서 생성되는 슬래그의 유동성 향상방법 |
Country Status (1)
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KR (1) | KR100862086B1 (ko) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102242231B (zh) * | 2010-09-27 | 2013-04-24 | 山东焦化集团有限公司 | 利用熔融炉渣生产平板型无机非金属材料的方法 |
KR101277900B1 (ko) * | 2011-07-15 | 2013-06-21 | 주식회사 포스코 | 제선 부원료 및 이를 이용한 슬래그 염기도 조정방법 |
KR102179976B1 (ko) * | 2018-12-13 | 2020-11-17 | 주식회사 포스코 | 용철 제조 방법 |
JPWO2023204069A1 (ko) * | 2022-04-22 | 2023-10-26 | ||
TWI843517B (zh) * | 2022-04-22 | 2024-05-21 | 日商Jfe鋼鐵股份有限公司 | 直接還原鐵的熔解方法、固體鐵及固體鐵的製造方法、土木建築用資材及土木建築用資材的製造方法以及直接還原鐵的熔解系統 |
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2002
- 2002-07-09 KR KR1020020039628A patent/KR100862086B1/ko active IP Right Grant
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Publication number | Publication date |
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KR20040006103A (ko) | 2004-01-24 |
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