Mathematical model for solids transport power in a decanter centrifuge

• A mathematical model of the transport of solids in a decanter centrifuge has been developed.
• The model gives the power, torque and axial force for the scroll to move solids along the bowl.
• Results are shown in non-dimensional form and validated by comparison with experimental data.

A mathematical model of the transport of sedimented solids within a decanter centrifuge has been developed. The primary purpose of the model is to calculate the power, torque and axial force required for the scroll to transport the solids along the bowl. The model is presented in a non-dimensional form and the procedure for implementing the model is included. The model is compared to test data from an existing publication; there was good agreement between the model and data. Example results are presented in the form of graphs to illustrate the influence of key parameters.

Schematic of a decanter centrifuge showing four transport zones within the bowl. Figure optionsDownload high-quality image (172 K)Download as PowerPoint slide