Abstract: The emission of submicron particles in coal-fired industry will harm the environment and human health,and the agglomeration method is one of the main means for removing sub-micron particles. In this work,an experimental platform for the turbulent agglomeration of submicron particulates was built. The Scanning Mobility Particle Sizer( SMPS) was used to measure the concentration of the inlet and outlet particulates. The effects of different disturbing structure arrangement on the submicron particulates turbulent agglomeration efficiency were studied. Moreover,the effects of flow field on particulate agglomeration efficiency were further analyzed by Fluent software. The results show that the turbulent agglomeration efficiency of micron particles is related to the particle size. The agglomeration efficiency of submicron particles with smaller particle size is better than that of submicron particles. the agglomeration efficiency of small particulates( particulates size <30 nm) is from 10% to 90%,but it is less than 10% for large particulates( particulates size >30 nm),and when the particle diameter is greater than 502 nm,the agglomeration efficiency becomes negative at different flow rates; according to the analysis of flow velocity,it is found that the agglomeration efficiency of sub-micron particles increases first and then decreases with the flow velocity,which is caused by the intensity of turbulence in the turbulence zone and the residence time of particles. What's more,when exploring the influence of the arrangement and arrangement of the spoiler on the agglomeration efficiency,the agglomeration efficiency of sub-micron particles decreases with the increase of the spoiler,and gradually decreases with the increase of the lateral spacing of the spoiler,first becomes larger and then decreases with the increase of the longitudinal spacing,and increase with the increase of the number of rows. The effects of the disturbing structure on the agglomeration efficiency are mainly influenced by the strength and length of the vortex. The strength of the vortex street promotes the collision probability of particles,and the length of the vortex street can increase the residence time of the particles in the turbulent zone,thereby increasing the agglomeration efficiency.