RU2009121800A - METHOD FOR PRODUCING IRON BY DIRECT RECOVERY - Google Patents
METHOD FOR PRODUCING IRON BY DIRECT RECOVERY Download PDFInfo
- Publication number
- RU2009121800A RU2009121800A RU2009121800/02A RU2009121800A RU2009121800A RU 2009121800 A RU2009121800 A RU 2009121800A RU 2009121800/02 A RU2009121800/02 A RU 2009121800/02A RU 2009121800 A RU2009121800 A RU 2009121800A RU 2009121800 A RU2009121800 A RU 2009121800A
- Authority
- RU
- Russia
- Prior art keywords
- stream
- iron
- sent
- gas
- exhaust gas
- Prior art date
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- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Способ получения железа прямым восстановлением, включающий движение зернистого материала, содержащего оксиды железа, и встречно циркулирующего восстановительного газа в интервале температур 850-1000°C, состоящего из водорода и монооксида углерода, и полученного за счет нагрева и превращения углеводородов с помощью окислителей в объеме газогенератора путем воздействия на них плазменными струями, восстановление материала до железа, отвод из зоны восстановления отработанного восстановительного газа, выгрузку восстановленного железа из реактора при температуре более 500°C, брикетирование полученного материала и последующее охлаждение до 100°C, очистку части основного потока отходящего газа, отличающийся тем, что в качестве зернистого материала, содержащего оксиды железа, используют горячие окатыши, отобранные из конвейерной обжиговой машины после стадии обжига и прошедшие фазу горячего грохочения, очищенный поток отходящего газа из реактора твердофазного восстановления поочередно пропускают через два каупера, одну часть охлажденного после каупера потока отходящего газа направляют на горелочные устройства конвейерной обжиговой машины, вторую часть - на утилизацию для получения электроэнергии, кислородсодержащий газ поочередно нагревают в упомянутых кауперах и направляют в форсунки плазменного газогенератора в качестве окислителя для получения восстановительного газа, непрерывную выгрузку восстановленных окатышей осуществляют периодически двумя потоками, первый поток после грохочения направляют в электродуговую печь для получения железосодержащего расплава, а второй поток восстановленных окат A method of producing iron by direct reduction, including the movement of a granular material containing iron oxides and counter-circulating reducing gas in the temperature range of 850-1000 ° C, consisting of hydrogen and carbon monoxide, and obtained by heating and conversion of hydrocarbons using oxidizing agents in the volume of the gas generator by exposing them to plasma jets, reducing the material to iron, withdrawing from the recovery zone the spent reducing gas, unloading the reduced iron from p actor at a temperature of more than 500 ° C, briquetting the resulting material and subsequent cooling to 100 ° C, cleaning part of the main exhaust gas stream, characterized in that as the granular material containing iron oxides, hot pellets are used selected from the conveyor roasting machine after the stage firing and passed the phase of hot screening, the cleaned exhaust gas stream from the solid-phase recovery reactor is alternately passed through two coolers, one part of the exhaust gas stream cooled after the cooler they are sent to the burners of the conveyor roasting machine, the second part is recycled to generate electricity, the oxygen-containing gas is heated in turn in the above-mentioned coolers and sent to the nozzles of the plasma gas generator as an oxidizing agent to produce the reducing gas, the unloaded reconstituted pellets are continuously discharged periodically with two streams, the first stream after screening is sent to an electric arc furnace to obtain an iron-containing melt, and the second stream recovered okat
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA200811124 | 2008-09-15 | ||
| UAA200811124A UA90788C2 (en) | 2008-09-15 | 2008-09-15 | Method for producing iron-containing material with direct reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2009121800A true RU2009121800A (en) | 2010-12-20 |
Family
ID=44056174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2009121800/02A RU2009121800A (en) | 2008-09-15 | 2009-06-08 | METHOD FOR PRODUCING IRON BY DIRECT RECOVERY |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2009121800A (en) |
| UA (1) | UA90788C2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101699236B1 (en) * | 2015-12-23 | 2017-01-24 | 주식회사 포스코 | An apparatus for manufacturing molten irons and manufacturing method using the same |
| CN115216574B (en) * | 2022-01-25 | 2023-10-03 | 中冶长天国际工程有限责任公司 | A direct reduction process and direct reduction device for iron-containing composite pellets |
-
2008
- 2008-09-15 UA UAA200811124A patent/UA90788C2/en unknown
-
2009
- 2009-06-08 RU RU2009121800/02A patent/RU2009121800A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| UA90788C2 (en) | 2010-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA93 | Acknowledgement of application withdrawn (no request for examination) |
Effective date: 20120613 |