JP5691198B2 - 溶銑の脱珪処理方法 - Google Patents
溶銑の脱珪処理方法 Download PDFInfo
- Publication number
- JP5691198B2 JP5691198B2 JP2010048490A JP2010048490A JP5691198B2 JP 5691198 B2 JP5691198 B2 JP 5691198B2 JP 2010048490 A JP2010048490 A JP 2010048490A JP 2010048490 A JP2010048490 A JP 2010048490A JP 5691198 B2 JP5691198 B2 JP 5691198B2
- Authority
- JP
- Japan
- Prior art keywords
- hot metal
- desiliconization
- mass
- source
- iron
- 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 196
- 229910052751 metal Inorganic materials 0.000 title claims description 196
- 238000000034 method Methods 0.000 title claims description 76
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 209
- 229910052742 iron Inorganic materials 0.000 claims description 104
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 95
- 239000001301 oxygen Substances 0.000 claims description 95
- 229910052760 oxygen Inorganic materials 0.000 claims description 95
- 238000011282 treatment Methods 0.000 claims description 80
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 64
- 229910052710 silicon Inorganic materials 0.000 claims description 64
- 239000010703 silicon Substances 0.000 claims description 64
- 238000002156 mixing Methods 0.000 claims description 39
- 238000005266 casting Methods 0.000 claims description 36
- 238000012546 transfer Methods 0.000 claims description 32
- 239000007787 solid Substances 0.000 claims description 16
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 73
- 235000013980 iron oxide Nutrition 0.000 description 37
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 35
- 229910001882 dioxygen Inorganic materials 0.000 description 35
- 238000006243 chemical reaction Methods 0.000 description 22
- 238000005261 decarburization Methods 0.000 description 19
- 238000004898 kneading Methods 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000002844 melting Methods 0.000 description 11
- 230000008018 melting Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000009628 steelmaking Methods 0.000 description 5
- 229910001369 Brass Inorganic materials 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000000739 chaotic effect Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 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
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
配合比率Rscが3.86%未満の場合には、高炉鋳床での脱珪処理を溶銑中珪素濃度が0.20質量%となるまで行い、その後、溶銑搬送用容器での脱珪処理を溶銑中珪素濃度が0.10質量%となるまで行い、
配合比率Rscが3.86%以上の場合には、高炉鋳床での脱珪処理を溶銑中珪素濃度が「0.026×(配合比率Rsc)+0.10」質量%となるまで行い、その後、溶銑搬送用容器での脱珪処理を溶銑中珪素濃度が0.10質量%となるまで行う、
ことを特徴とする。
2 混銑車炉体
3 溶銑
4 傾注樋
5 ブラストランス
6 高炉
7 溶銑樋
8 浸漬ランス
Claims (1)
- 高炉鋳床を流下する溶銑に酸素源を供給して行う高炉鋳床での脱珪処理と、前記溶銑を受銑した溶銑搬送用容器内に酸素源を供給して行う溶銑搬送用容器での脱珪処理との2回の脱珪処理を行う溶銑の脱珪処理方法において、
前記高炉鋳床での脱珪処理は、酸素源として固体酸素源のみを使用して行い、前記溶銑搬送用容器での脱珪処理は、酸素源として気体酸素源のみを使用して行い、
受銑前に前記溶銑搬送用容器に入れ置きした冷鉄源の配合比率Rsc(Rsc(%)=(冷鉄源の質量)×100/[(溶銑の質量)+(冷鉄源の質量)])に応じて、
配合比率Rscが3.86%未満の場合には、高炉鋳床での脱珪処理を溶銑中珪素濃度が0.20質量%となるまで行い、その後、溶銑搬送用容器での脱珪処理を溶銑中珪素濃度が0.10質量%となるまで行い、
配合比率Rscが3.86%以上の場合には、高炉鋳床での脱珪処理を溶銑中珪素濃度が「0.026×(配合比率Rsc)+0.10」質量%となるまで行い、その後、溶銑搬送用容器での脱珪処理を溶銑中珪素濃度が0.10質量%となるまで行い、
かくして、前記配合比率Rscに応じて、前記酸素源として使用する気体酸素源と固体酸素源との使用比率を調整することを特徴とする、溶銑の脱珪処理方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010048490A JP5691198B2 (ja) | 2010-03-05 | 2010-03-05 | 溶銑の脱珪処理方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010048490A JP5691198B2 (ja) | 2010-03-05 | 2010-03-05 | 溶銑の脱珪処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011184710A JP2011184710A (ja) | 2011-09-22 |
JP5691198B2 true JP5691198B2 (ja) | 2015-04-01 |
Family
ID=44791345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010048490A Active JP5691198B2 (ja) | 2010-03-05 | 2010-03-05 | 溶銑の脱珪処理方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5691198B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114959158B (zh) * | 2022-05-31 | 2023-06-13 | 本钢板材股份有限公司 | 一种铁水沟自旋流高效脱硫、脱硅、脱磷方法 |
CN115505668A (zh) * | 2022-11-23 | 2022-12-23 | 华北理工大学 | 一种移动式铁水脱硅脱磷方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03140406A (ja) * | 1989-10-25 | 1991-06-14 | Nippon Steel Corp | 溶銑の脱硅方法 |
JPH059534A (ja) * | 1991-07-04 | 1993-01-19 | Kawasaki Steel Corp | 溶銑予備処理方法 |
JP3774913B2 (ja) * | 1994-10-27 | 2006-05-17 | Jfeスチール株式会社 | 溶銑の予備脱珪処理方法 |
-
2010
- 2010-03-05 JP JP2010048490A patent/JP5691198B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2011184710A (ja) | 2011-09-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5541423B1 (ja) | 製鋼スラグ還元処理装置及び製鋼スラグ還元処理システム | |
JP5408369B2 (ja) | 溶銑の予備処理方法 | |
WO2014112432A1 (ja) | 転炉製鋼法 | |
KR20140017676A (ko) | 용선의 정련 방법 | |
JPWO2018110174A1 (ja) | 電気炉 | |
JP2006233264A (ja) | 高クロム溶鋼の溶製方法 | |
JP5909957B2 (ja) | 鉄スクラップを利用した製鋼方法 | |
JP2009102697A (ja) | 溶鋼の製造方法 | |
JP5691198B2 (ja) | 溶銑の脱珪処理方法 | |
JP5867520B2 (ja) | 溶銑の予備処理方法 | |
JP5408379B2 (ja) | 溶銑の予備処理方法 | |
JP5585151B2 (ja) | スロッピング防止方法 | |
JP5549198B2 (ja) | 鉄スクラップを利用した製鋼方法 | |
JP3721154B2 (ja) | クロム含有溶湯の精錬方法 | |
CN112004947A (zh) | 钢液的制造方法 | |
JP2002339014A (ja) | 極低硫鋼の製造方法 | |
JP2019151535A (ja) | リン酸スラグ肥料の製造方法 | |
JP2008184648A (ja) | 溶銑の脱珪・脱燐処理方法 | |
JP4695312B2 (ja) | 溶銑の予備処理方法 | |
JP4484717B2 (ja) | 製鋼設備の操業方法 | |
JP4981248B2 (ja) | 溶銑の処理方法 | |
JP2005068533A (ja) | 溶銑の脱燐方法 | |
JP6940028B2 (ja) | リン酸肥料原料の製造方法 | |
JPH0435529B2 (ja) | ||
JPS63259010A (ja) | 金属酸化物の溶融還元法および溶融還元炉 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20130219 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140729 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140922 |
|
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: 20150106 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150119 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5691198 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 |