Method for recycling iron containing by products discharged from coal based ironmaking process system used therefor and direct reduced iron agglomeration system

摘要

The present invention relates to a method for recycling by products produced in the form of dust or sludge from a coal based ironmaking process and containing a large amount of valuable components in a process of manufacturing agglomerated reduced iron and to an agglomeration system. The present invention provides a direct reduced iron agglomeration system and a corresponding agglomeration method the direct reduced iron agglomeration system comprising: a fluidized reduction furnace for reducing fine iron ore into reduced iron; a reduced iron storage tank for storing the reduced iron and feeding the stored reduced iron to an agglomeration apparatus the reduced iron storage tank being connected to the fluidized reduction furnace through a reduced iron discharge pipe; the agglomeration apparatus for agglomerating the reduced iron fed from the reduced iron storage tank; and an conveying means for conveying agglomerates of the by products produced from the ironmaking process through a by product feed pipeline wherein the by product feed pipeline feeds the agglomerates of the by products to at least one selected from the fluidized reduction furnace the reduced iron discharge pipe and the reduced iron storage tank.