JP5446300B2 - 溶銑の脱硫処理方法 - Google Patents
溶銑の脱硫処理方法 Download PDFInfo
- Publication number
- JP5446300B2 JP5446300B2 JP2009030653A JP2009030653A JP5446300B2 JP 5446300 B2 JP5446300 B2 JP 5446300B2 JP 2009030653 A JP2009030653 A JP 2009030653A JP 2009030653 A JP2009030653 A JP 2009030653A JP 5446300 B2 JP5446300 B2 JP 5446300B2
- Authority
- JP
- Japan
- Prior art keywords
- hot metal
- desulfurization
- impeller
- desulfurizing agent
- ratio
- 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.)
- Active
Links
- 239000002184 metal Substances 0.000 title claims description 127
- 229910052751 metal Inorganic materials 0.000 title claims description 127
- 238000006477 desulfuration reaction Methods 0.000 title claims description 94
- 230000023556 desulfurization Effects 0.000 title claims description 94
- 238000000034 method Methods 0.000 title claims description 27
- 230000003009 desulfurizing effect Effects 0.000 claims description 59
- 238000012545 processing Methods 0.000 claims description 25
- 238000010907 mechanical stirring Methods 0.000 claims description 21
- 229910000805 Pig iron Inorganic materials 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 71
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 41
- 238000003756 stirring Methods 0.000 description 25
- 239000000292 calcium oxide Substances 0.000 description 21
- 235000012255 calcium oxide Nutrition 0.000 description 21
- 230000001965 increasing effect Effects 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000002893 slag Substances 0.000 description 7
- 238000007664 blowing Methods 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 229910004261 CaF 2 Inorganic materials 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
2 溶銑鍋
3 溶銑
4 インペラー
5 上吹きランス
6 投入シュート
7 脱硫剤
8 ホッパー
9 切出装置
10 ホッパー
11 ロータリーフィーダー
Claims (1)
- 機械攪拌式脱硫装置を用いて処理容器に収容された溶銑を脱硫処理するにあたり、前記処理容器に収容される溶銑の浴深さをHとし、処理容器の内径をDとしたときに、内径(D)に対する浴深さ(H)の比(H/D)が1.2以上で2.0未満の範囲内となる処理容器を用いて脱硫処理することを特徴とする、溶銑の脱硫処理方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009030653A JP5446300B2 (ja) | 2009-02-13 | 2009-02-13 | 溶銑の脱硫処理方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009030653A JP5446300B2 (ja) | 2009-02-13 | 2009-02-13 | 溶銑の脱硫処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010185114A JP2010185114A (ja) | 2010-08-26 |
JP5446300B2 true JP5446300B2 (ja) | 2014-03-19 |
Family
ID=42765943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009030653A Active JP5446300B2 (ja) | 2009-02-13 | 2009-02-13 | 溶銑の脱硫処理方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5446300B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5983059B2 (ja) * | 2011-07-08 | 2016-08-31 | Jfeスチール株式会社 | 脱硫装置用の粉状添加剤の添加装置及び添加方法 |
KR101485529B1 (ko) * | 2013-08-07 | 2015-01-22 | 주식회사 포스코 | 용탕의 정련 방법 및 그 장치 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001049319A (ja) * | 1999-08-11 | 2001-02-20 | Kawasaki Steel Corp | 溶銑の脱硫方法 |
JP4998676B2 (ja) * | 2006-03-29 | 2012-08-15 | Jfeスチール株式会社 | インペラーを用いた溶融金属の攪拌方法 |
-
2009
- 2009-02-13 JP JP2009030653A patent/JP5446300B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2010185114A (ja) | 2010-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2011002094A1 (ja) | 溶銑の脱硫方法 | |
JP5862738B2 (ja) | 溶銑の脱硫処理用精錬容器 | |
JP4998676B2 (ja) | インペラーを用いた溶融金属の攪拌方法 | |
JP4845078B2 (ja) | 溶銑の脱硫方法 | |
JP4715369B2 (ja) | 溶銑の脱硫処理方法 | |
JP5177170B2 (ja) | 溶銑の脱硫方法 | |
JP2008050659A (ja) | 溶銑の脱硫剤及び脱硫処理方法 | |
JP5418058B2 (ja) | 溶銑の脱硫方法 | |
JP5446300B2 (ja) | 溶銑の脱硫処理方法 | |
JP5130663B2 (ja) | 溶融鉄の精錬方法 | |
JP5458499B2 (ja) | 溶銑の脱硫処理方法 | |
JP5401938B2 (ja) | 溶銑の脱硫方法 | |
JP2015218390A (ja) | 機械式攪拌とガス攪拌とを併用した溶銑の脱硫方法 | |
JP4998677B2 (ja) | 脱硫スラグの再利用方法 | |
JP5066923B2 (ja) | 溶銑の脱硫処理方法 | |
JP5906664B2 (ja) | 溶銑の脱硫方法 | |
JP6238019B2 (ja) | 復硫の少ない溶銑脱硫方法 | |
JP4984928B2 (ja) | 溶銑の脱硫方法 | |
JP5418248B2 (ja) | 溶銑の脱硫方法 | |
JP6416634B2 (ja) | 溶銑鍋における脱珪および脱硫方法 | |
JP2023133926A (ja) | 撹拌羽根及び溶銑の脱硫方法 | |
JP2019189893A (ja) | 溶銑の脱硫処理方法 | |
JP2018172719A (ja) | 溶銑の脱硫方法 | |
JP2006336036A (ja) | 溶銑の脱硫処理方法 | |
TWI564396B (zh) | Method of preventing backwashing of molten iron after desulfurization |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20111025 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20120321 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20120327 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130528 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130726 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130903 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131021 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20131203 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20131216 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 5446300 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |