APPARATUS FOR REDUCING IRON ORES AND APPARATAUS FOR MANUFACTURING MOLTEN IRON AND REDUCED IRON AND METHOD FOR MANUFACTURING THE SAME
PURPOSE: A device and a method of manufacturing a molten iron and a reduced iron are provided to improve a competitive power of a steel assortment process and to increase a use of a low-grade ore by applying the low-grade ore to a fluidized-bed reduction process without a separate mineral dressing p...
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| creator | JEONG, SUN KWANG YI, SANG HO YOUN, JA YOUNG |
| description | PURPOSE: A device and a method of manufacturing a molten iron and a reduced iron are provided to improve a competitive power of a steel assortment process and to increase a use of a low-grade ore by applying the low-grade ore to a fluidized-bed reduction process without a separate mineral dressing process. CONSTITUTION: A device and a method of manufacturing a molten iron and a reduced iron comprise a granulation mineral pre-reduction furnace (10), an ultrafine mineral pre-reduction furnace (20), a first magnetic force selector (30), an intermediate reduction furnace (40), and a final reduction furnace (50). The granulation mineral pre-reduction furnace charges an iron ore fine, and performs a prereduction of the iron ore fine by a reductant gas. The ultrafine mineral pre-reduction furnace performs a prereduction by charging an ultrafine mineral ejected by dispersing in the granulation mineral pre-reduction furnace. The first magnetic force selector separates a gangue component from the ultrafine mineral. The intermediate reduction furnace reduces additionally by charging the granulation mineral and the ultrafine mineral. [Reference numerals] (AA) Exhaust gas; (BB) Gangue; (CC) Reducing gas |
| format | Patent |
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CONSTITUTION: A device and a method of manufacturing a molten iron and a reduced iron comprise a granulation mineral pre-reduction furnace (10), an ultrafine mineral pre-reduction furnace (20), a first magnetic force selector (30), an intermediate reduction furnace (40), and a final reduction furnace (50). The granulation mineral pre-reduction furnace charges an iron ore fine, and performs a prereduction of the iron ore fine by a reductant gas. The ultrafine mineral pre-reduction furnace performs a prereduction by charging an ultrafine mineral ejected by dispersing in the granulation mineral pre-reduction furnace. The first magnetic force selector separates a gangue component from the ultrafine mineral. The intermediate reduction furnace reduces additionally by charging the granulation mineral and the ultrafine mineral. 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CONSTITUTION: A device and a method of manufacturing a molten iron and a reduced iron comprise a granulation mineral pre-reduction furnace (10), an ultrafine mineral pre-reduction furnace (20), a first magnetic force selector (30), an intermediate reduction furnace (40), and a final reduction furnace (50). The granulation mineral pre-reduction furnace charges an iron ore fine, and performs a prereduction of the iron ore fine by a reductant gas. The ultrafine mineral pre-reduction furnace performs a prereduction by charging an ultrafine mineral ejected by dispersing in the granulation mineral pre-reduction furnace. The first magnetic force selector separates a gangue component from the ultrafine mineral. The intermediate reduction furnace reduces additionally by charging the granulation mineral and the ultrafine mineral. 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CONSTITUTION: A device and a method of manufacturing a molten iron and a reduced iron comprise a granulation mineral pre-reduction furnace (10), an ultrafine mineral pre-reduction furnace (20), a first magnetic force selector (30), an intermediate reduction furnace (40), and a final reduction furnace (50). The granulation mineral pre-reduction furnace charges an iron ore fine, and performs a prereduction of the iron ore fine by a reductant gas. The ultrafine mineral pre-reduction furnace performs a prereduction by charging an ultrafine mineral ejected by dispersing in the granulation mineral pre-reduction furnace. The first magnetic force selector separates a gangue component from the ultrafine mineral. The intermediate reduction furnace reduces additionally by charging the granulation mineral and the ultrafine mineral. [Reference numerals] (AA) Exhaust gas; (BB) Gangue; (CC) Reducing gas</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE |
| title | APPARATUS FOR REDUCING IRON ORES AND APPARATAUS FOR MANUFACTURING MOLTEN IRON AND REDUCED IRON AND METHOD FOR MANUFACTURING THE SAME |
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