KR100490737B1 - 전로의 내화물벽에 대한 스플래쉬 슬래그 코팅용 혼합분체 및 그 슬래그 코팅방법 - Google Patents
전로의 내화물벽에 대한 스플래쉬 슬래그 코팅용 혼합분체 및 그 슬래그 코팅방법 Download PDFInfo
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- KR100490737B1 KR100490737B1 KR10-2000-0071936A KR20000071936A KR100490737B1 KR 100490737 B1 KR100490737 B1 KR 100490737B1 KR 20000071936 A KR20000071936 A KR 20000071936A KR 100490737 B1 KR100490737 B1 KR 100490737B1
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- KR
- South Korea
- Prior art keywords
- slag
- converter
- mixed powder
- coke
- magnesia
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
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- 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
- C21C5/42—Constructional features of converters
- C21C5/44—Refractory linings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Metallurgy (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
혼합분체중 코크스 비율(%) | 슬래그층 두께 A (mm) | 슬래그층 두께 B (mm) | |
종래방법 | 분체취입 없음 | 6.0 | 4.9 |
비교방법A | 10 | 6.1 | 4.9 |
본발명방법A | 20 | 6.0 | 5.5 |
본발명방법B | 30 | 7.5 | 7.0 |
본발명방법C | 40 | 8.6 | 8.1 |
본발명방법D | 50 | 11.2 | 11.0 |
본발명방법E | 60 | 12.2 | 11.9 |
본발명방법F | 70 | 8.2 | 7.5 |
비교방법B | 80 | 5.8 | 4.8 |
비교방법C | 90 | 6.0 | 4.9 |
마그네시아와 코크스의 혼합분체 취입량(슬래그 1톤당 Kg) | 슬래그층 두께 A (mm) | 슬래그층 두께 B (mm) | |
종래방법 | 0 | 6.0 | 4.9 |
비교방법D | 20 | 6.0 | 4.9 |
본발명방법G | 30 | 6.5 | 5.9 |
본발명방법H | 50 | 8.8 | 8.1 |
본발명방법E | 100 | 12.2 | 11.9 |
본발명방법I | 150 | 13.1 | 12.9 |
본발명방법J | 200 | 13.3 | 12.8 |
비교방법E | 250 | 13.2 | 12.9 |
비교방법F | 300 | 13.0 | 12.8 |
마그네시아와 코크스의 혼합분체의 입도 | 슬래그층 두께 A (mm) | 슬래그층 두께 B (mm) | |
종래방법 | 0 | 6.0 | 4.9 |
본발명방법E | 1mm이하 | 12.2 | 11.9 |
본발명방법K | 1~2mm | 10.2 | 9.5 |
본발명방법L | 2~3mm | 7.3 | 6.5 |
비교방법G | 3~4mm | 5.8 | 4.6 |
Claims (2)
- 전로 노체내화물의 수명을 향상시키기 위한 스플래쉬 슬래그코팅용 혼합분체에 있어서, 입도가 3mm이하이면서 20∼70중량%인 코크스와 잔여 함량으로 충전되는 마그네시아가 혼합된 마그네시아와 코크스의 혼합분체로 조성되는 것을 특징으로 하는 전로의 내화물벽에 대한 스플래쉬 슬래그코팅용 혼합분체.
- 전로 노체내화물의 수명을 향상시키기 위한 스플래쉬 슬래그코팅방법에 있어서, 입도가 3mm이하이면서 20∼70중량%인 코크스와 잔여 함량으로 충전되는 마그네시아가 혼합된 마그네시아와 코크스의 혼합분체를 슬래그1톤당 30∼200kg의 양만큼 슬래그 직상부에 산소랜스를 통해 분사하여 전로노체 내화물에 스플래쉬되어 코팅되는 것을 특징으로 하는 전로의 내화물벽에 대한 스플래쉬 슬래그코팅방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR10-2000-0071936A KR100490737B1 (ko) | 2000-11-30 | 2000-11-30 | 전로의 내화물벽에 대한 스플래쉬 슬래그 코팅용 혼합분체 및 그 슬래그 코팅방법 |
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KR10-2000-0071936A KR100490737B1 (ko) | 2000-11-30 | 2000-11-30 | 전로의 내화물벽에 대한 스플래쉬 슬래그 코팅용 혼합분체 및 그 슬래그 코팅방법 |
Publications (2)
Publication Number | Publication Date |
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KR20020042156A KR20020042156A (ko) | 2002-06-05 |
KR100490737B1 true KR100490737B1 (ko) | 2005-05-24 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102787204A (zh) * | 2012-08-23 | 2012-11-21 | 武汉钢铁(集团)公司 | 节能环保型转炉溅渣护炉料及其生产工艺 |
CN110551869A (zh) * | 2019-09-24 | 2019-12-10 | 山东钢铁股份有限公司 | 一种用于转炉溅渣阶段炉渣改性的方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100840264B1 (ko) * | 2001-12-22 | 2008-06-20 | 주식회사 포스코 | 제강 전로용 MgO-C 코팅제 |
KR100923793B1 (ko) * | 2002-12-17 | 2009-10-27 | 주식회사 포스코 | 슬래그 코팅방법 |
KR101104797B1 (ko) * | 2004-10-22 | 2012-01-12 | 주식회사 포스코 | 전로 내부의 니더재 인젝션 스프레쉬 코팅 장치 및 이를이용한 코팅 방법 |
CN115572787B (zh) * | 2022-09-29 | 2024-03-29 | 日照钢铁控股集团有限公司 | 一种通过溅渣护炉还原热态炉渣的工艺方法 |
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JPS6217112A (ja) * | 1985-07-15 | 1987-01-26 | Kobe Steel Ltd | 転炉内壁のスラグコ−テイング方法 |
JPH01152214A (ja) * | 1987-12-10 | 1989-06-14 | Nkk Corp | 転炉炉壁の補修方法 |
JPH0533030A (ja) * | 1991-07-24 | 1993-02-09 | Nkk Corp | 溶融還元炉の耐火物補修方法 |
JPH08246108A (ja) * | 1995-03-03 | 1996-09-24 | Nippon Steel Corp | 異方性の少ない無方向性電磁鋼板およびその製造方法 |
JPH09279217A (ja) * | 1996-04-18 | 1997-10-28 | Nippon Steel Corp | 溶融金属容器のスラグコーティング方法 |
-
2000
- 2000-11-30 KR KR10-2000-0071936A patent/KR100490737B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6217112A (ja) * | 1985-07-15 | 1987-01-26 | Kobe Steel Ltd | 転炉内壁のスラグコ−テイング方法 |
JPH01152214A (ja) * | 1987-12-10 | 1989-06-14 | Nkk Corp | 転炉炉壁の補修方法 |
JPH0533030A (ja) * | 1991-07-24 | 1993-02-09 | Nkk Corp | 溶融還元炉の耐火物補修方法 |
JPH08246108A (ja) * | 1995-03-03 | 1996-09-24 | Nippon Steel Corp | 異方性の少ない無方向性電磁鋼板およびその製造方法 |
JPH09279217A (ja) * | 1996-04-18 | 1997-10-28 | Nippon Steel Corp | 溶融金属容器のスラグコーティング方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102787204A (zh) * | 2012-08-23 | 2012-11-21 | 武汉钢铁(集团)公司 | 节能环保型转炉溅渣护炉料及其生产工艺 |
CN110551869A (zh) * | 2019-09-24 | 2019-12-10 | 山东钢铁股份有限公司 | 一种用于转炉溅渣阶段炉渣改性的方法 |
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