A method for making reduced iron using blast-furnace sludge is provided. The
method
includes a mixing step of mixing the blast-furnace sludge and an iron-oxide-containing
powder to prepare a mixed material, an agglomerating step of agglomerating the
mixed material to form agglomerates, a feeding step of feeding the agglomerates
onto a continuously moving hearth, and a reducing step of heating the agglomerates
to remove zinc and reduce the agglomerates.
