Abstract
Induration (drying and hardening) of iron ore pellets is an energy-intensive feed preparation step for both the blast furnace and direct reduction routes to iron. It is commonly carried out by a ‘grate/kiln’ process. A mathematical model of the process is described, in which mechanistic models of the grate furnace, kiln, and cooler are linked to enable simulation of the entire process. The model includes equations for the gas stream pressure balances and process controller responses, and provides dynamic solutions. The validation of the model for an operating plant is discussed and steady-state solutions are compared with data from the plant.
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Thurlby, J.A. A dynamic mathematical model of the complete grate/kiln iron–ore pellet induration process. Metall Trans B 19, 103–112 (1988). https://doi.org/10.1007/BF02666496
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DOI: https://doi.org/10.1007/BF02666496