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首页> 外国专利> AN APPARATUS FOR MANUFACTURING A MOLTEN IRON DIRECTLY USING FINE OR LUMP COALS AND FINE IRON ORES, THE METHOD THEREOF, THE INTEGRATED STEEL MILL USING THE SAME AND THE METHOD THEREOF

AN APPARATUS FOR MANUFACTURING A MOLTEN IRON DIRECTLY USING FINE OR LUMP COALS AND FINE IRON ORES, THE METHOD THEREOF, THE INTEGRATED STEEL MILL USING THE SAME AND THE METHOD THEREOF

机译：直接使用细煤或块煤和细铁矿石制造熔融铁的设备，其方法，使用相同方法的集成钢轧机及其方法

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摘要

Provided is an apparatus for manufacturing molten iron using directly fine or lump coals and fine iron-containing ores, a method thereof, an integrated steel mill using the same, and a method thereof.. The method of manufacturing the molten iron comprises the steps of: manufacturing iron-containing mixture by mixing fine iron-containing ores and supplementary raw materials and by drying the resultant mixture, converting the iron-containing mixture to a reduced material by reducing and sintering while passing the iron-containing mixture through multi-stage fluidized­bed reactor unit, which are sequentially connected to each other, manufacturing briquettes by briquetting the reduced material at high temperature, forming a coal packed bed by charging lump coals and briquettes which are made by briquetting fine coals, into a melter-gasifier as heat sources for melting the briquettes, manufacturing molten iron by charging the briquettes into the melter-gasifier connected to the multi-stage fluidized-bed reactor unit and by supplying oxygen into the melter-gasifier, and supplying reducing coal-gas exhausted from the melter-gasifier into the multi-stage fluidized-bed reactor unit.
机译：提供了一种直接使用粉煤或块煤和含铁精矿生产铁水的设备，其方法，使用其的综合钢厂及其方法。制造铁水的方法包括以下步骤： ：通过混合细的含铁矿石和辅助原料并干燥所得混合物，然后在使含铁混合物通过多级流化床的同时进行还原和烧结，将含铁混合物转化为还原材料，从而制造含铁混合物依次连接的反应堆单元，通过在高温下将还原的材料压块来制造团块，通过将块状煤和由团块状的煤制成的团块填充到熔融气化炉中作为热源，从而形成煤填充床。熔化团块，通过将团块装入连接到多级的熔融气化炉中来制造铁水流化床反应器单元，通过将氧气供应到熔融气化炉中，并且将从熔融气化炉排出的还原性煤气体供应到多级流化床反应器单元中。

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