JP5347317B2 - 使用済みタンディッシュ耐火物の再使用方法 - Google Patents
使用済みタンディッシュ耐火物の再使用方法 Download PDFInfo
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- JP5347317B2 JP5347317B2 JP2008116880A JP2008116880A JP5347317B2 JP 5347317 B2 JP5347317 B2 JP 5347317B2 JP 2008116880 A JP2008116880 A JP 2008116880A JP 2008116880 A JP2008116880 A JP 2008116880A JP 5347317 B2 JP5347317 B2 JP 5347317B2
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- Prior art keywords
- refractory
- mgo
- tundish
- converter
- refractories
- 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.)
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- 239000011819 refractory material Substances 0.000 title claims description 40
- 239000002184 metal Substances 0.000 claims description 41
- 229910052751 metal Inorganic materials 0.000 claims description 41
- 238000007670 refining Methods 0.000 claims description 37
- 239000002245 particle Substances 0.000 claims description 34
- 239000010419 fine particle Substances 0.000 claims description 23
- 239000011362 coarse particle Substances 0.000 claims description 21
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 19
- 239000011247 coating layer Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- 238000009749 continuous casting Methods 0.000 claims description 12
- 238000007873 sieving Methods 0.000 claims description 7
- 239000003610 charcoal Substances 0.000 claims 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 119
- 239000000395 magnesium oxide Substances 0.000 description 59
- 239000011449 brick Substances 0.000 description 55
- 238000005261 decarburization Methods 0.000 description 25
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 239000002893 slag Substances 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000000292 calcium oxide Substances 0.000 description 12
- 235000012255 calcium oxide Nutrition 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 230000001788 irregular Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 9
- 229910000514 dolomite Inorganic materials 0.000 description 8
- 239000010459 dolomite Substances 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 7
- 238000005266 casting Methods 0.000 description 7
- 230000012447 hatching Effects 0.000 description 7
- 238000007654 immersion Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 229910001570 bauxite Inorganic materials 0.000 description 4
- 239000002440 industrial waste Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004503 fine granule Substances 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- -1 generally Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011823 monolithic refractory Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
2 鉄皮
3 永久張り煉瓦
4 不定形耐火物
5 MgO被覆層
6 ノズル受け煉瓦
7 上ノズル
8 スライディングノズル
9 固定板
10 摺動板
11 浸漬ノズル
Claims (1)
- Al2O3−SiO2系耐火物をワーク耐火物とし、該ワーク耐火物の表面にMgOの被覆層が施工された連続鋳造用タンディッシュから発生する使用済み耐火物を回収して30mm以下に破砕し、破砕した使用済み耐火物を、粒径が10mm以下の細粒、及び、10mm超え30mm以下の粗粒に篩い分けし、篩い分けにより得た前記細粒を転炉での溶銑の脱炭精錬における造滓剤として使用し、篩い分けにより得た前記粗粒を転炉での溶銑の予備脱燐精錬における造滓剤として使用することを特徴とする、使用済みタンディッシュ耐火物の再使用方法。
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JP2008116880A JP5347317B2 (ja) | 2008-04-28 | 2008-04-28 | 使用済みタンディッシュ耐火物の再使用方法 |
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JP2008116880A JP5347317B2 (ja) | 2008-04-28 | 2008-04-28 | 使用済みタンディッシュ耐火物の再使用方法 |
Publications (2)
Publication Number | Publication Date |
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JP2009263742A JP2009263742A (ja) | 2009-11-12 |
JP5347317B2 true JP5347317B2 (ja) | 2013-11-20 |
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JP2008116880A Active JP5347317B2 (ja) | 2008-04-28 | 2008-04-28 | 使用済みタンディッシュ耐火物の再使用方法 |
Country Status (1)
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JP (1) | JP5347317B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101141077B1 (ko) * | 2011-10-13 | 2012-05-03 | 케이티롤주식회사 | 압연롤 주조용 용탕주입장치 |
JP6167802B2 (ja) * | 2013-09-26 | 2017-07-26 | 新日鐵住金株式会社 | 溶銑の精錬方法 |
JP6162672B2 (ja) * | 2014-10-15 | 2017-07-12 | Jfeスチール株式会社 | 使用済み耐火物の分離方法および分離装置 |
JP6162673B2 (ja) * | 2014-10-15 | 2017-07-12 | Jfeスチール株式会社 | 使用済み耐火物の分離回収方法および分離装置 |
CN115159961B (zh) * | 2022-06-01 | 2024-02-13 | 玉溪新兴钢铁有限公司 | 一种连铸中包用废旧镁质干式料循环再利用的方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS591610A (ja) * | 1982-05-28 | 1984-01-07 | Shinagawa Rozai Kk | 塩基性製鋼炉用複合造滓剤 |
JPS60180978A (ja) * | 1984-02-27 | 1985-09-14 | 品川白煉瓦株式会社 | タンデイツシユのライニング構造 |
JP3353550B2 (ja) * | 1995-06-30 | 2002-12-03 | 日本鋼管株式会社 | 転炉耐火物溶損抑制方法 |
JP3991562B2 (ja) * | 2000-08-07 | 2007-10-17 | 住友金属工業株式会社 | 無害化ステンレススラグとその製造方法 |
JP2004002915A (ja) * | 2002-05-31 | 2004-01-08 | Nippon Steel Corp | 耐火物のスラグフォーミング鎮静材への使用方法およびスラグフォーミング鎮静材 |
JP4077774B2 (ja) * | 2003-08-19 | 2008-04-23 | 新日本製鐵株式会社 | 使用済み耐火物の再利用方法 |
JP2005188798A (ja) * | 2003-12-25 | 2005-07-14 | Jfe Steel Kk | 使用済み耐火物の再利用方法及び溶融金属容器の内張り保護層の形成方法 |
ITMI20050539A1 (it) * | 2005-04-01 | 2006-10-02 | Techint Spa | Metodo e apparato per il recupero di materiali refrattari di risulta e di scorie da siviera come scorie di processo nella produzione siderurgica in eaf e il relativo dosaggio al forno per la formazione della scoria di processo |
JP4904858B2 (ja) * | 2006-03-13 | 2012-03-28 | Jfeスチール株式会社 | 溶銑の脱燐処理方法 |
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