Research on structural optimization of swirl pneumatic conveying pipeline
In order to explore the problem of blanking pipe blockage in the process of cyclone pneumatic conveying in the carrying section of the feeder,based on the verification of engineering production experiments,the numerical simulation method of CFD-DEM(computational fluid dynamics and discrete elements)coupling was used to study the mass flow rate,rate uniformity and flow characteristics of the material in the pipeline.The influence of the height H,angle α and the concave degree β of the transition section of the high sensitivity parameters on the two evaluation indexes of mass flow rate and rate uniformity was summarized.The multi-factor coupling analysis of the optimization target was carried out,and the theoretical model of the optimization target was introduced.The optimal parameter combination is solved according to the regression equation,which solves the problem of material accumulation and blockage in the variable diameter swirl pneumatic conveying in the project.This study also provides guidance for the improvement of the related equipment of the variable diameter swirl pneumatic conveying.
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