Separation Performance Enhancement of Gas-Solid Cyclone Separators by Flow Control and Coupling Physical Fields

Cyclone separators have been widely applied in industrial applications to separate solid particles from fluid suspensions. Despite many advantages, their separation performance often falls short of expectations, especially for smaller particles. Significant efforts have been dedicated to enhancing the performance of cyclones over an extended period. This review aims to provide an overview of these endeavors. The review begins by comparing the characteristics of cyclone separators with different gas-solid flow patterns. This analysis provides a comprehensive understanding of how different flow patterns impact the performance of cyclones. The review then discusses on how flow controls, particularly through secondary flows and preprocessing inlet flow, separation. Furthermore, it offers a critical overview of the coupling of cyclone separators with different physical fields to enhance performance, along with the challenges associated with this approach. Finally, the review summarizes some key findings and outlines the challenges in these areas.