Study On The Structure And Performance Of A New Type Of Axial Cyclone Separator

The continuous development of science and technology and people's increasing attention to environmental issues have made the performance requirements of gas-solid separation devices widely used in industrial production more and more demanding.The separation device not only needs to meet the requirements of low resistance and high efficiency,but also needs to be able to be flexibly applied to the actual working conditions.In this paper,a new type of axial cyclone separator was proposed,which can be used for primary dust removal and dust separation in dusty airflow.It can also be used to separate and recycle production materials on site without affecting the original pipeline.It meets the requirements of low energy consumption,high separation efficiency and integrates into existing pipelines easily.In this paper,the structures of new type axial cyclone were designed and optimized by combining numerical simulation and experimental methods,and the separation performance was studied.Relevant studies are as follows:Firstly,the influence of blade pitch,shaft diameter and upper dust chamber height on resistance loss and separation efficiency of new type axial cyclone separator was investigated by orthogonal design experiment.And combined with these above results,the response surface method was used to design the initial structure of the three factors and output the optimal level combination.Secondly,the influence of other structures like the thickness of blades and exhaust pipe diameter on new separator's performance was investigated and optimized to determine the final model.And the separation performance of the final model was studied by numerical simulation.It was found that: the exhaust pipe going deep into dust collecting chamber could significantly improve the separation efficiency of small particle size.Its theoretical segmentation particle size could be as low as 1?m.Thirdly,comparing the performance of the final model with that of the cyclone separator,it is concluded that the resistance loss of new separator was only 24.63% of that of the cyclone separator when the theoretical segmentation particle size of the two were similar.When the resistance loss were similar,the theoretical segmentation particle size of new separator is smaller,which means that the new separator had the advantages of small resistance and small segmentation particle size.Finally,the final model test piece was made,and the actual separation performance was investigated through experimental research.The average relative error between the CFD value and the experimental value was only 3.94% through the resistance characteristic experiment,which verified the accuracy of the numerical simulation results.The separation efficiency experiment showed that the new separator achieved better separation effect on 6?m particles.