Dense medium drum (DMD) separators are unit processes that are typically used to beneficiate coal, ironore and other minerals by making use of density separation. Some coal dense medium separation plantstypically include a DMD separator. The operational management of this unit process is often limited tolocalised control of medium density and feed mass flow rate. Dynamic models for coal dense mediumseparation have been developed by the authors with the intention of using them for dynamic control.A suitable dynamic model for a DMD separator could not been found in the available literature. Thispaper shows how the dynamic model for a dense medium cyclone has been applied to a DMD separator.The model parameters were determined and the performance of the model is evaluated using actualplant data from a Wemco drum. Coal washability and drum partitioning behaviour are used to estimatethe grade of the product for model grade simulation and validation.
展开▼
