Author(s)

J.A. de Castro, H. Nogami & J. Yagi

Abstract

Multi-dimensional mathematical modeling of five phases in the blast furnace J.A. de Castro, H. Nogami & J. Yagi Institute for Advanced Materials Processing, Tohoku University, Japan Abstract A multi-dimensional mathematical model of blast furnace operation based on the multi fluid theory has been developed. The model considers gas, lump solid, fine powder, molten metal and slag as separate fluids. The behavior of each phase is described by the conservation equations of mass, momentum and thermal energy, and is affected from the other phases. Thus the interactions among existing phases are taken into account in the con- servation equations by means of mass, momentum and heat exchange. In addition, all phases undergo reactions and phase transformations, there- fore the rate equations of these phenomena based on the chemical kinetics and transport theory are used. The model is applied to three-dimensional analysis of actual blast furnace. Simulation results show that the radial

Keywords