Stress Fields and Impact Energies of Solid Flow in a Model Blast Furnace

Speaker: Haiping Zhu

Affiliation: University of Western Sydney

Time: Monday 15/09/2014 from 14:00 to 15:00

Venue: Access Grid UWS. Presented from Penrith (Y239), accessible from Parramatta (EB.1.32) and Campbelltown (26.1.50).

Abstract: The blast furnace (BF) is a large chemical reactor that is predominantly used for ironmaking. Solid particles consisting of two basic types of materials, coke (as a reductant) and ore (iron-bearing materials), are charged into BF top layer by layer alternatively, and then descend under gravity. Understanding and modelling this complex multi-phases flow system in BF has been a focus of research for many years. Of particular interest in our recent numerical work is the flow of solids in a BF, which is closely related to the permeability control and to a large degree, governs the flow of other phases. The solid flow in a model BF has been microscopically and macroscopically studied in detail by use of DEM or CFD-DEM approach. In particular, we have examined the internal stress distribution and impact energy of the solid flow. The effects of gas flow rate and solid flow rate on these properties have also been studied. The results indicate that the distributions of the stresses and energies are related to the flow pattern of the solid flow.

Biography: To come.