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PRODUCTION OF PIG IRON BY SOLID STATE REDUCTION IN A SHAFT FURNACE amp; MELTING IN A FLUIDISED BED GASIFIER
PRODUCTION OF PIG IRON BY SOLID STATE REDUCTION IN A SHAFT FURNACE amp; MELTING IN A FLUIDISED BED GASIFIER
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机译:竖炉中固态还原法生产猪铁及流化床气化炉熔融
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摘要
A novel process for producing molten pig iron or steel raw material is described. The pig iron is initially at least partly reduced to sponge iron by means of a reducing gas and is then melted in a melting gasifier, being optionally finally reduced. Apart from the sponge iron, the melting gasifier is supplied with coal at least partly degassed by a hot gas and oxygen-containing gas. The hot gas used for this purpose is formed from the gas produced during degassing and a supplied, oxygen-containing gas. The latter is preferably constituted by air, which can be preheated by the gas produced during degassing.
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