JPS5842714A - 溶銑の予備脱珪方法 - Google Patents
溶銑の予備脱珪方法Info
- Publication number
- JPS5842714A JPS5842714A JP14012881A JP14012881A JPS5842714A JP S5842714 A JPS5842714 A JP S5842714A JP 14012881 A JP14012881 A JP 14012881A JP 14012881 A JP14012881 A JP 14012881A JP S5842714 A JPS5842714 A JP S5842714A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- hot metal
- amount
- cao
- blowing
- 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.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 34
- 229910052742 iron Inorganic materials 0.000 title abstract description 19
- 238000000034 method Methods 0.000 title description 14
- 238000007664 blowing Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 19
- 239000001301 oxygen Substances 0.000 abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 abstract description 19
- 238000007254 oxidation reaction Methods 0.000 abstract description 17
- 230000003647 oxidation Effects 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 8
- 229910052748 manganese Inorganic materials 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 4
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 4
- 239000004571 lime Substances 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000009628 steelmaking Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14012881A JPS5842714A (ja) | 1981-09-05 | 1981-09-05 | 溶銑の予備脱珪方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14012881A JPS5842714A (ja) | 1981-09-05 | 1981-09-05 | 溶銑の予備脱珪方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5842714A true JPS5842714A (ja) | 1983-03-12 |
| JPS6238407B2 JPS6238407B2 (enExample) | 1987-08-18 |
Family
ID=15261544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14012881A Granted JPS5842714A (ja) | 1981-09-05 | 1981-09-05 | 溶銑の予備脱珪方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5842714A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60181212A (ja) * | 1984-02-28 | 1985-09-14 | Nisshin Steel Co Ltd | 溶銑の脱珪法 |
-
1981
- 1981-09-05 JP JP14012881A patent/JPS5842714A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60181212A (ja) * | 1984-02-28 | 1985-09-14 | Nisshin Steel Co Ltd | 溶銑の脱珪法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6238407B2 (enExample) | 1987-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3239197B2 (ja) | 転炉製鋼法 | |
| JPH11158526A (ja) | 高ｐスラグの製造方法 | |
| JP2958848B2 (ja) | 溶銑の脱りん方法 | |
| JPH09165615A (ja) | 溶融金属の脱窒方法 | |
| JPS5842714A (ja) | 溶銑の予備脱珪方法 | |
| KR100946128B1 (ko) | 용강의 전로 정련 방법 | |
| JP2000109924A (ja) | 極低硫鋼の溶製方法 | |
| JPH01316409A (ja) | スクラップ溶解を伴う溶銑脱燐方法 | |
| JP2607329B2 (ja) | 溶銑の脱りん方法 | |
| JP2607328B2 (ja) | 溶銑の脱りん方法 | |
| JP3776778B2 (ja) | 溶鉄の脱バナジウム方法 | |
| JP3486886B2 (ja) | ２基以上の転炉を使用する製鋼方法 | |
| JPH08311519A (ja) | 転炉製鋼法 | |
| JPS6358203B2 (enExample) | ||
| JP3505791B2 (ja) | 溶銑の脱燐・脱硫法 | |
| JPS62109911A (ja) | 溶銑の脱珪・脱燐方法 | |
| JPH0112810B2 (enExample) | ||
| JP2587286B2 (ja) | 製鋼方法 | |
| JPS5847450B2 (ja) | 酸素上吹製鋼法における脱燐促進方法 | |
| JPS6121285B2 (enExample) | ||
| JPS58151413A (ja) | 酸素吹込み製鋼時の冷材添加量を増加する方法 | |
| JPH08176638A (ja) | ステンレス鋼の精錬方法 | |
| JP2000212623A (ja) | 生石灰の少ない溶銑脱燐方法 | |
| JPH03122210A (ja) | 複合転炉を用いた２段向流精錬製鋼法 | |
| JPH01312020A (ja) | 溶銑の昇温脱燐法 |