RU2007137364A - METHOD FOR PRODUCING IRON BY DIRECT REDUCTION IN FURNACE AND A DEVICE FOR BLOWING A HYDROCARBON GAS INTO A PLASMA JET - Google Patents
METHOD FOR PRODUCING IRON BY DIRECT REDUCTION IN FURNACE AND A DEVICE FOR BLOWING A HYDROCARBON GAS INTO A PLASMA JET Download PDFInfo
- Publication number
- RU2007137364A RU2007137364A RU2007137364/02A RU2007137364A RU2007137364A RU 2007137364 A RU2007137364 A RU 2007137364A RU 2007137364/02 A RU2007137364/02 A RU 2007137364/02A RU 2007137364 A RU2007137364 A RU 2007137364A RU 2007137364 A RU2007137364 A RU 2007137364A
- Authority
- RU
- Russia
- Prior art keywords
- plasma
- natural gas
- furnace
- housing
- jet
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract 10
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract 6
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract 6
- 229910052742 iron Inorganic materials 0.000 title claims abstract 5
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract 3
- 238000007664 blowing Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract 24
- 239000003345 natural gas Substances 0.000 claims abstract 12
- 239000000463 material Substances 0.000 claims abstract 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract 8
- 239000007789 gas Substances 0.000 claims abstract 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000001301 oxygen Substances 0.000 claims abstract 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052799 carbon Inorganic materials 0.000 claims abstract 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract 2
- 239000000446 fuel Substances 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 239000001257 hydrogen Substances 0.000 claims abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims abstract 2
- 230000008018 melting Effects 0.000 claims abstract 2
- 238000010309 melting process Methods 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims abstract 2
- 239000007800 oxidant agent Substances 0.000 claims abstract 2
- 230000001590 oxidative effect Effects 0.000 claims abstract 2
- 239000007858 starting material Substances 0.000 claims abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1. Способ получения железа прямым восстановлением в печи, включающий загрузку в печь исходного сырья, содержащего железооксидный материал, подачу в печь окислителя и топлива и получение железа за счет нагрева и реагирования железооксидного материала с углеродсодержащим материалом и монооксидом углерода, отличающийся тем, что процесс расплавления оксидов осуществляют окислительной плазменной струей, получаемой из плазмообразующего газа с массовым соотношением расхода кислорода к расходу природного газа 1,5-2,5 при минимальном рабочем расходе плазмообразующего газа через плазмотрон, а после полного расплавления исходного материала дополнительно подают природный газ в плазменную струю за срезом сопла плазмотрона, осуществляют в струе плазмы конверсию природного газа на водород и пироуглерод и вдувают их в расплав исходных материалов, при этом расход природного газа выбирают таким, чтобы поддерживать температуру струи с пироуглеродом на 250-350°С выше температуры плавления материалов шихты, а перед сливом готового металла и в процессе слива прекращают подачу природного газа на плазменную струю, а состав плазмообразующего газа, проходящего через плазмотрон, устанавливают с массовым соотношением расхода кислорода к расходу природного газа 0,8-1. ! 2. Устройство для вдува углеводородного газа в плазменную струю, содержащее корпус с каналами подачи исходных углеводородов, отличающееся тем, что устройство состоит из плазмотрона косвенного действия, анодное сопло которого коаксиально расположено относительно цилиндрической гильзы, жестко закрепленной в корпусе с образованием кольцевой камеры между наружной 1. The method of producing iron by direct reduction in the furnace, comprising loading into the furnace a feedstock containing iron oxide material, feeding an oxidizer and fuel to the furnace and producing iron by heating and reacting the iron oxide material with a carbon-containing material and carbon monoxide, characterized in that the melting process of oxides is carried out by an oxidizing plasma jet obtained from a plasma-forming gas with a mass ratio of oxygen to natural gas consumption of 1.5-2.5 with a minimum working p the gathering of the plasma-forming gas through the plasma torch, and after the source material is completely melted, natural gas is additionally fed into the plasma jet behind the nozzle of the plasma torch, the natural gas is converted to hydrogen and pyrocarbon in the plasma jet and injected into the molten starting material, and the natural gas flow rate is chosen as in order to maintain the temperature of the jet with pyrocarbon 250-350 ° C higher than the melting temperature of the charge materials, and before discharge of the finished metal and during the discharge, the flow of natural aza on the plasma jet, and the composition of the plasma gas passing through the plasma torch, mounted in the weight ratio of oxygen flow to natural gas flow rate of 0.8-1. ! 2. A device for injecting hydrocarbon gas into a plasma jet containing a housing with feed channels for the feed of hydrocarbons, characterized in that the device consists of an indirect-action plasma torch, the anode nozzle of which is coaxially located relative to a cylindrical sleeve rigidly fixed in the housing to form an annular chamber between the outer
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA200704554 | 2007-04-24 | ||
| UAA200704554A UA81737C2 (en) | 2007-04-24 | 2007-04-24 | Method and furnace for iron production by direct reducing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2007137364A true RU2007137364A (en) | 2009-04-20 |
| RU2367687C2 RU2367687C2 (en) | 2009-09-20 |
Family
ID=39312001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2007137364/02A RU2367687C2 (en) | 2007-04-24 | 2007-10-08 | Method of iron receiving by means of direct reduction in furnace and in furnace and device for insufflation of natural gas into plasma jet |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2367687C2 (en) |
| UA (1) | UA81737C2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4907961A (en) * | 1988-05-05 | 1990-03-13 | Union Carbide Corporation | Oxygen jet burner and combustion method |
| US5100313A (en) * | 1991-02-05 | 1992-03-31 | Union Carbide Industrial Gases Technology Corporation | Coherent jet combustion |
| US5951740A (en) * | 1997-06-16 | 1999-09-14 | Praxair Technology, Inc. | Production of direct reduced iron with reduced fuel consumption and emission of carbon monoxide |
| RU60936U1 (en) * | 2006-10-11 | 2007-02-10 | Ооо "Твинн" | DEVICE FOR DIRECT METAL RECOVERY |
-
2007
- 2007-04-24 UA UAA200704554A patent/UA81737C2/en unknown
- 2007-10-08 RU RU2007137364/02A patent/RU2367687C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2367687C2 (en) | 2009-09-20 |
| UA81737C2 (en) | 2008-01-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20101009 |