METHOD FOR MANUFACTURING MOLTEN IRON

METHOD FOR MANUFACTURING MOLTEN IRON

Provided is a method for manufacturing molten iron, wherein an iron-containing by-product is blown into a melting gasification furnace through a tuyere. A method for manufacturing molten iron comprises: i) a step for providing an iron-containing by-product that includes a slurry; ii) a step for intr...

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Hauptverfasser: BAE, Jin Chan, CHOI, Eung Soo, YI, Joon Giu
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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creator BAE, Jin Chan
CHOI, Eung Soo
YI, Joon Giu
description Provided is a method for manufacturing molten iron, wherein an iron-containing by-product is blown into a melting gasification furnace through a tuyere. A method for manufacturing molten iron comprises: i) a step for providing an iron-containing by-product that includes a slurry; ii) a step for introducing a lumped carbonaceous material and a reducing iron into a melting gasification furnace; iii) a step for crushing the iron-containing by-product together with a fine carbonaceous material to provide a mixture to be blown through the tuyere, the mixture having a moisture content greater than 0 wt % and no greater than 2 wt %; iv) a step for blowing through the tuyere installed in the melting gasification furnace and into the melting gasification furnace, oxygen and the mixture to be blown through the tuyere; and v) a step for manufacturing molten steel in the melting gasification furnace. In the step for providing the mixture to be blown through the tuyere, the average particle diameter of the mixture to be blown through the tuyere is greater than 0 µm and no greater than 50 µm.
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subjects CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
title METHOD FOR MANUFACTURING MOLTEN IRON
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