Numerical Simulation Of Working Process Of The CuSO₄ Stirring Device And Structure Improvement

In this paper, taking the CuSO4 stirring device of electrolysis plant of an enterprise was as a research object. When the stirring device worked long time under normal conditions, the stirring blade and the stirring shaft maybe were bent or broken, and bearings and motors were also damaged, which affected the production efficiency and the quality of CUSO4. Therefore, optimizing the structure of the stirring device is important to improve the mixing effect, reduce repair costs and economic losses of the stirring equipment.In this paper, fond out the existing problems in the structure through a detailed survey of the characteristics of the original stirring device. Two kinds of structure model was set up for appearing the obvious shifting of the angle and crossrange when the stirring shaft rotating, and Fluent and ANSYS Workbench were used to simulate of CFD and FSI in two kinds of structure model to verify whether the structure of the original stirring device would lead to the failure.According to the results of the analysis, the structure of the stirring device was improved combined with the theories. Firstly, the optimal structure design was obtained through research of mixing performance in different installation height and different layer spacing of the stirring paddle. Secondly, the reasonable support way of stirring shaft was selected according to the working characteristic of the stirring device, and the best bearing spacing combined with the experimental and theoretical data was obtained. Finally, the stirring device after improving was analyzed in numerical simulation and used in actual production.Based on the structure analysis and improvement of the original stirring device, it was shown that the stirring device which structure had improved was more stable than before in the work process, and which could greatly improve the mixing efficiency and service life through using.