Abstract: In order to further improve the agglomeration and dust collection efficiency of fine dust in coal-fired power plants, the effects of the setting of turbulent vortex in the bipolar turbulent-mixing agglomerator and the electric field intensity of the preloader on the agglomeration efficiency were studied. Using the particle swarm equilibrium model (PBM), the bipolar agglomeration kernel function was written as UDF and imported into fluent. Numerical simulation and analysis showed that the staggered arrangement of vortex plates and the combination of vortex plates with different shapes in the agglomerator could enhance the interaction between vortices and improve the agglomeration efficiency. In addition, the agglomeration efficiency increases with the increase of the electric field strength of the preloader.