Additives for improving the air permeability inside the blast furnace and a method for improving air permeability using the same

摘要

The present invention provides an additive for improving the air permeability of the blast furnace during operation and a method for improving the air permeability inside the blast furnace using the same.;The present invention for achieving the above object is made of the same composition as the molten iron; It has a size of 2-3.3 times the average particle size of the sintered ore charged in the blast furnace; The technical gist of the present invention relates to an additive for improving air permeability inside a blast furnace having a hollow polyhedral shape and a method for improving air permeability inside the blast furnace using the additive.