Mixtures in Motion
High-Velocity DEM Modeling of Blast Furnace Charging
R.N. Roeplal (TU Delft - Transport Engineering and Logistics)
D.L. Schott – Promotor (TU Delft - Transport Engineering and Logistics)
Y. Pang – Copromotor (TU Delft - Transport Engineering and Logistics)
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Abstract
Despite decades of industrial use, the blast furnace remains, to some extent, a “black box”. Harsh operating conditions and the scale of the process make it difficult to observe how pellet and sinter, which serve as the main raw material components for molten iron production, are distributed within the layers formed by their multi-component mixture during charging. This distribution strongly influences blast furnace permeability, which in turn affects efficiency, energy use, and emissions. Predicting this distribution is challenging due to differences in particle properties and the high-velocity nature of charging, which likely induces segregation. As a result, it is unclear whether the burden is deposited uniformly, and if not, how to improve it....