JP5505580B1 - 溶銑予備処理方法及び溶銑予備処理用攪拌体 - Google Patents
溶銑予備処理方法及び溶銑予備処理用攪拌体 Download PDFInfo
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- JP5505580B1 JP5505580B1 JP2013557694A JP2013557694A JP5505580B1 JP 5505580 B1 JP5505580 B1 JP 5505580B1 JP 2013557694 A JP2013557694 A JP 2013557694A JP 2013557694 A JP2013557694 A JP 2013557694A JP 5505580 B1 JP5505580 B1 JP 5505580B1
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- hot metal
- impeller
- rotating shaft
- stirring
- resonance frequency
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- 239000002184 metal Substances 0.000 title claims abstract description 134
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 134
- 238000003756 stirring Methods 0.000 title claims abstract description 69
- 238000002203 pretreatment Methods 0.000 title claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000007670 refining Methods 0.000 claims abstract description 30
- 239000000654 additive Substances 0.000 claims abstract description 20
- 230000000996 additive effect Effects 0.000 claims abstract description 20
- 238000011282 treatment Methods 0.000 claims description 29
- 238000003723 Smelting Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 24
- 238000006477 desulfuration reaction Methods 0.000 description 30
- 230000023556 desulfurization Effects 0.000 description 30
- 230000001133 acceleration Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 239000007787 solid Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000003009 desulfurizing effect Effects 0.000 description 6
- 229910000975 Carbon steel Inorganic materials 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 239000010962 carbon steel Substances 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000010907 mechanical stirring Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/06—Constructional features of mixers for pig-iron
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D27/00—Stirring devices for molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
- F27D2003/0083—Means for stirring the charge
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
[1]回転軸の先端部に取り付けられたインペラを精錬容器内の溶銑に浸漬させ、浸漬させたインペラを回転させることによって溶銑と添加剤とを攪拌し、
前記回転軸の1次曲げの共振周波数は、溶銑を攪拌するインペラの回転周波数よりも大きい溶銑予備処理方法。
[2]前記1次曲げの共振周波数はインペラの回転周波数の1.2倍以上である[1]に記載の溶銑予備処理方法。
[3]前記回転軸は中空構造である上記[1]または上記[2]に記載の溶銑予備処理方法。
[4]前記インペラの回転数は100rpm以上200rpm以下である上記[1]ないし上記[3]のいずれか1項に記載の溶銑予備処理方法。
[5]前記精錬容器は、底部の内面形状が該精錬容器の中心軸に対して非軸対称となるように、底部の耐火物が施工されている上記[1]ないし上記[4]のいずれか1項に記載の溶銑予備処理方法。
[6]回転軸と、この回転軸の先端部に取り付けられたインペラとを有し、前記回転軸及び前記インペラが回転することで溶銑を攪拌する溶銑予備処理用攪拌体であって、前記回転軸の1次曲げの共振周波数が2.0〜4.0Hzである溶銑予備処理用攪拌体。
[7]前記回転軸は中空構造である[6]に記載の溶銑予備処理用攪拌体。
図6は、回転軸の回転周波数と周波数に対する共振加速度との関係を通常鍋と傾斜鍋とで比較して示す図である。実線は通常鍋の場合の回転周波数と周波数に対する共振加速度との関係を、点線は角度θが5°の傾斜鍋の場合の回転周波数と周波数に対する共振加速度との関係を示す。この関係は、中実の回転軸であっても中空の回転軸であっても変わらない。また、図6は共振周波数が2.9Hzの場合を示したが、共振周波数が変わった場合でも、周波数応答全体の形状は維持したままで、振動加速度が最大となる周波数が変わるだけである。
2 回転軸
2a フランジ
3 インペラ
3a 金属板
4 精錬容器
4A 精錬容器
5 溶銑
6 添加剤
7 耐火物
Claims (7)
- 回転軸の先端部に取り付けられたインペラを精錬容器内の溶銑に浸漬させ、浸漬させたインペラを回転させることによって溶銑と添加剤とを攪拌し、
前記回転軸の1次曲げの共振周波数は、溶銑を攪拌するインペラの回転周波数よりも大きい溶銑予備処理方法。 - 前記1次曲げの共振周波数はインペラの回転周波数の1.2倍以上である請求項1に記載の溶銑予備処理方法。
- 前記回転軸は中空構造である請求項1または請求項2に記載の溶銑予備処理方法。
- 前記インペラの回転数は100rpm以上200rpm以下である請求項1ないし請求項3のいずれか1項に記載の溶銑予備処理方法。
- 前記精錬容器は、底部の内面形状が該精錬容器の中心軸に対して非軸対称となるように、底部の耐火物が施工されている請求項1ないし請求項4のいずれか1項に記載の溶銑予備処理方法。
- 回転軸と、この回転軸の先端部に取り付けられたインペラとを有し、前記回転軸及び前記インペラが回転することで溶銑を攪拌する溶銑予備処理用攪拌体であって、前記回転軸の1次曲げの共振周波数が2.0〜4.0Hzである溶銑予備処理用攪拌体。
- 前記回転軸は中空構造である請求項6に記載の溶銑予備処理用攪拌体。
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JP2013557694A JP5505580B1 (ja) | 2012-07-20 | 2013-07-12 | 溶銑予備処理方法及び溶銑予備処理用攪拌体 |
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JP2012161429 | 2012-07-20 | ||
JP2012161429 | 2012-07-20 | ||
JP2013557694A JP5505580B1 (ja) | 2012-07-20 | 2013-07-12 | 溶銑予備処理方法及び溶銑予備処理用攪拌体 |
PCT/JP2013/004306 WO2014013707A1 (ja) | 2012-07-20 | 2013-07-12 | 溶銑予備処理方法及び溶銑予備処理用攪拌体 |
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JP5505580B1 true JP5505580B1 (ja) | 2014-05-28 |
JPWO2014013707A1 JPWO2014013707A1 (ja) | 2016-06-30 |
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JP (1) | JP5505580B1 (ja) |
KR (1) | KR101662017B1 (ja) |
CN (1) | CN104471082B (ja) |
BR (1) | BR112015001168B1 (ja) |
IN (1) | IN2014DN11261A (ja) |
TW (1) | TWI515042B (ja) |
WO (1) | WO2014013707A1 (ja) |
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CN107435085B (zh) * | 2017-07-17 | 2019-03-15 | 武汉钢铁有限公司 | 铁水脱硫用高效混合搅拌器 |
CN113801976A (zh) * | 2020-06-17 | 2021-12-17 | 宝山钢铁股份有限公司 | 高效kr脱硫铁水罐 |
Citations (3)
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JP2000348358A (ja) * | 1999-06-08 | 2000-12-15 | Sanyo Electric Co Ltd | 光ピックアップ |
JP2011042815A (ja) * | 2009-08-19 | 2011-03-03 | Jfe Steel Corp | 溶銑の脱硫方法 |
JP2011220264A (ja) * | 2010-04-12 | 2011-11-04 | Honda Motor Co Ltd | 遠心型圧縮機 |
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KR20040053602A (ko) * | 2002-12-17 | 2004-06-24 | 주식회사 포스코 | 용선 탈류효율 향상을 위한 탈류제 투입방법 |
JP4211524B2 (ja) | 2003-07-28 | 2009-01-21 | Jfeスチール株式会社 | 機械攪拌式脱硫装置 |
KR20050052151A (ko) * | 2003-11-29 | 2005-06-02 | 엘지전자 주식회사 | 냉장고용 축류팬 |
JP4986383B2 (ja) | 2004-03-31 | 2012-07-25 | Jfeスチール株式会社 | 溶銑の脱硫方法 |
JP4635672B2 (ja) * | 2005-03-24 | 2011-02-23 | Jfeスチール株式会社 | 溶融金属の精錬方法 |
JP5691207B2 (ja) * | 2009-06-26 | 2015-04-01 | Jfeスチール株式会社 | 溶銑の脱硫処理用精錬容器及び脱硫処理方法 |
CA2785014C (en) * | 2009-12-23 | 2018-01-30 | Koninklijke Philips Electronics N.V. | A mechanical drive train with a motor and an eccentric for a resonant power toothbrush |
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- 2013-07-12 JP JP2013557694A patent/JP5505580B1/ja active Active
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- 2013-07-12 KR KR1020157000220A patent/KR101662017B1/ko active IP Right Grant
- 2013-07-12 CN CN201380037805.7A patent/CN104471082B/zh active Active
- 2013-07-12 BR BR112015001168-3A patent/BR112015001168B1/pt active Search and Examination
- 2013-07-12 WO PCT/JP2013/004306 patent/WO2014013707A1/ja active Application Filing
- 2013-07-17 TW TW102125570A patent/TWI515042B/zh active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000348358A (ja) * | 1999-06-08 | 2000-12-15 | Sanyo Electric Co Ltd | 光ピックアップ |
JP2011042815A (ja) * | 2009-08-19 | 2011-03-03 | Jfe Steel Corp | 溶銑の脱硫方法 |
JP2011220264A (ja) * | 2010-04-12 | 2011-11-04 | Honda Motor Co Ltd | 遠心型圧縮機 |
Also Published As
Publication number | Publication date |
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CN104471082B (zh) | 2016-09-07 |
CN104471082A (zh) | 2015-03-25 |
KR20150018623A (ko) | 2015-02-23 |
TWI515042B (zh) | 2016-01-01 |
WO2014013707A1 (ja) | 2014-01-23 |
JPWO2014013707A1 (ja) | 2016-06-30 |
BR112015001168A2 (pt) | 2017-06-27 |
BR112015001168B1 (pt) | 2019-09-24 |
IN2014DN11261A (ja) | 2015-10-09 |
KR101662017B1 (ko) | 2016-10-04 |
TW201404462A (zh) | 2014-02-01 |
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