RU2008121680A - METHOD FOR Smelting Steel - Google Patents
METHOD FOR Smelting Steel Download PDFInfo
- Publication number
- RU2008121680A RU2008121680A RU2008121680/02A RU2008121680A RU2008121680A RU 2008121680 A RU2008121680 A RU 2008121680A RU 2008121680/02 A RU2008121680/02 A RU 2008121680/02A RU 2008121680 A RU2008121680 A RU 2008121680A RU 2008121680 A RU2008121680 A RU 2008121680A
- Authority
- RU
- Russia
- Prior art keywords
- solid
- metal
- melting
- slag
- oxidizing agent
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 10
- 238000003723 Smelting Methods 0.000 title abstract 5
- 229910000831 Steel Inorganic materials 0.000 title abstract 2
- 239000010959 steel Substances 0.000 title abstract 2
- 239000007800 oxidant agent Substances 0.000 claims abstract 20
- 239000007787 solid Substances 0.000 claims abstract 17
- 239000002184 metal Substances 0.000 claims abstract 14
- 229910052751 metal Inorganic materials 0.000 claims abstract 14
- 238000002844 melting Methods 0.000 claims abstract 13
- 230000008018 melting Effects 0.000 claims abstract 11
- 239000002893 slag Substances 0.000 claims abstract 6
- 238000010438 heat treatment Methods 0.000 claims abstract 4
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims abstract 4
- 230000001590 oxidative effect Effects 0.000 claims abstract 4
- 238000007670 refining Methods 0.000 claims abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052799 carbon Inorganic materials 0.000 claims abstract 3
- 238000009628 steelmaking Methods 0.000 claims abstract 3
- 229910001339 C alloy Inorganic materials 0.000 claims abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 239000003795 chemical substances by application Substances 0.000 claims abstract 2
- 239000002131 composite material Substances 0.000 claims abstract 2
- 230000004907 flux Effects 0.000 claims abstract 2
- 239000012535 impurity Substances 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims abstract 2
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 229910001018 Cast iron Inorganic materials 0.000 claims 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- -1 heating Substances 0.000 abstract 1
- 239000013067 intermediate product Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
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
- Continuous Casting (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
1. Способ выплавки стали в сталеплавильном агрегате, включающий завалку твердого окислителя, шлакообразующих материалов, металлошихты, прогрев, заливку жидкого чугуна или углеродистого полупродукта, плавление, скачивание шлака, окислительное рафинирование металлического расплава от избыточного количества углерода и других примесей, ввод по ходу рафинирования твердого окислителя, подачу газообразного кислорода, нагрев, доводку и выпуск металла, отличающийся тем, что твердый окислитель вводят в порошкообразном состоянии с размером частиц менее 5 мм непосредственно в объем металлической ванны на глубину, составляющую 0,1-1 высоты слоя жидкого металла, причем большую часть окислителя в количестве 70-95% от общего его расхода на плавку подают после заливки железоуглеродистого расплава, при этом суммарный расход твердого окислителя на плавку поддерживают в пределах 2-30% от массы металлического расплава, залитого в агрегат. ! 2. Способ по п.1, отличающийся тем, что твердый окислитель подают совместно с легкоплавким шлакообразующим флюсом и/или синтетической шлаковой смесью, собственная температура плавления которых в исходном состоянии и/или после образования из них и вводимого окислителя шлака ниже температуры плавления твердого окислителя. ! 3. Способ по п.1, отличающийся тем, что часть твердого окислителя в количестве 5-25% от общего расхода его на плавку вводят в составе композиционного материала, содержащего смесь твердого окислителя и металлического утяжелителя в виде железоуглеродистого сплава, при соотношении их масс в пределах (10÷90)-(90:10) соответственно. ! 4. Способ по п.1, отличающийся тем, что по ходу плавки по�1. A method of steel smelting in a steel-making unit, including filling a solid oxidizer, slag-forming materials, metal charge, heating, filling liquid iron or a carbonaceous intermediate product, melting, downloading slag, oxidative refining of a metal melt from an excess amount of carbon and other impurities, introducing solid in the course of refining oxidizer, supply of gaseous oxygen, heating, finishing and release of metal, characterized in that the solid oxidizer is introduced in a powdery state with a particle size of less than 5 mm directly into the volume of the metal bath to a depth of 0.1-1 of the height of the liquid metal layer, and a large part of the oxidizer in the amount of 70-95% of its total consumption for smelting is supplied after pouring the iron-carbon melt, while the total consumption of the solid oxidant for smelting is maintained within 2-30% of the mass of the metal melt poured into the unit. ! 2. The method according to claim 1, characterized in that the solid oxidant is fed together with a low-melting slag-forming flux and / or a synthetic slag mixture, the melting point of which in the initial state and / or after the formation of slag from them and the oxidizer introduced is below the melting point of the solid oxidizer ... ! 3. The method according to claim 1, characterized in that a part of the solid oxidizer in an amount of 5-25% of its total consumption for smelting is introduced as part of a composite material containing a mixture of a solid oxidizer and a metal weighting agent in the form of an iron-carbon alloy, with the ratio of their masses in within the range (10 ÷ 90) - (90:10), respectively. ! 4. The method according to claim 1, characterized in that during the melting
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008121680/02A RU2382824C1 (en) | 2008-05-28 | 2008-05-28 | Method of steel melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008121680/02A RU2382824C1 (en) | 2008-05-28 | 2008-05-28 | Method of steel melting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008121680A true RU2008121680A (en) | 2009-12-10 |
| RU2382824C1 RU2382824C1 (en) | 2010-02-27 |
Family
ID=41489006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008121680/02A RU2382824C1 (en) | 2008-05-28 | 2008-05-28 | Method of steel melting |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2382824C1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2467825C2 (en) * | 2010-12-27 | 2012-11-27 | Общество с ограниченной ответственностью "Научно-производственное малое предприятие Интермет-Сервис" | Method of producing synthetic composite semi-finished material for steel refining |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU437807A1 (en) * | 1973-06-01 | 1974-07-30 | Центральный научно-исследовательский институт черной металлургии им. И.П.Бардина | Method for producing low carbon steel |
| RU2049118C1 (en) * | 1992-03-28 | 1995-11-27 | Акционерная компания "Тулачермет" | Method for steel making in oxygen converters |
| RU2051972C1 (en) * | 1993-01-26 | 1996-01-10 | Научно-производственное малое предприятие "Интерметсервис" | Method for steel smelting in martin furnace |
| RU2280699C2 (en) * | 2004-09-28 | 2006-07-27 | Общество с ограниченной ответственностью "Научно-производственное малое предприятие "Интермет-Сервис" | Method of steel making in oxygen converter with slag remaining |
-
2008
- 2008-05-28 RU RU2008121680/02A patent/RU2382824C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2382824C1 (en) | 2010-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009038139A1 (en) | Process for producing molten iron | |
| CN105940120B (en) | Method for producing steel in an electric arc furnace and electric arc furnace | |
| CN103433471A (en) | Spheroidizing method of nodular cast iron | |
| CN106311999B (en) | A kind of pre-fused exothermal pouring slag | |
| CN103643056B (en) | The smelting process of low carbon ferromanganese | |
| WO2009038140A1 (en) | Process for producing molten iron | |
| CN102071331B (en) | Smelting preparation method of high-purity high-silicon manganese-silicon alloy | |
| RU2008121680A (en) | METHOD FOR Smelting Steel | |
| RU2231558C2 (en) | Composite material for metallurgical conversion and a method for achievement thereof | |
| JPS5935407B2 (en) | Carbon supply method to iron melt in converter | |
| US3055753A (en) | Metallurgical processes | |
| RU97111271A (en) | METHOD OF MANUFACTURE OF VANADIUM SLAG AND NATURALLY ALLOYED VANADIUM STEEL | |
| CN103031409A (en) | Novel process of steelmaking deoxidization by utilizing precipitator dust of refining furnace | |
| CN102943143A (en) | Slag stopping material, slag stopping method and combined technology method of slag stopping and slag splashing protection | |
| RU2233890C1 (en) | Method of making low-carbon steel in oxygen converter | |
| Ahmed et al. | Factors affecting silicomanganese production using manganese rich slag in the charge | |
| RU2786105C1 (en) | Method for steel smelting in a converter on liquid iron | |
| RU2170270C1 (en) | Filler for material destined for metallurgical production and method for preparing filler for material destined for metallurgical production | |
| CN103874771A (en) | Balling processing method of nodular cast iron | |
| RU2009101565A (en) | METHOD FOR Smelting RAIL STEEL | |
| RU2404263C1 (en) | Method of steel making in arc-type steel-making furnace | |
| RU2255982C1 (en) | Method of making steel in oxygen converter | |
| CN103643057B (en) | The smelting process of mid-carbon fe-mn | |
| CN103146869A (en) | Production and application of vermicular graphite cast iron vermiculizer | |
| RU2384627C1 (en) | Steel-making method in arc electric steel-smelting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20110529 |