Pressure Drop and Gas Flow in an Oxygen Blast Furnace Analyzed by a Combination of Experimentation and a Porous Model

As a modification of the conventional blast furnace (BF), top gas recycling-oxygen (TGR-OBF) has been continuously studied in context technological transformation low-carbon metallurgy. it set new inlets stack and changes operation system hearth, pressure drop in-furnace flow are primary problems to be solved TGR-OBF’s industrialization. In this paper, two-dimensional model whole furnace, based on softening-and-melting experiment porous-medium theory, is established. The velocity with different oxygen concentrations tuyere heights studied. results show that suitable height same as elevation cohesive zone inside furnace. With gradual increase enrichment, permeability ore layer (COL) increases, while through coke (CL) decreases gradually up 10%. simulation provide theoretical basis for TGR-OBF reduce rate keep from increasing, or even enable decrease.