Study Of Effects On Beater Structure Parameters To CuSO₄ Crystalline Efficiency

The beater equipment have been widely used in many industries. As the core component, the structural type of impeller has a decisive influence on the performance of mechanical stirring equipment. The production method of stirring cooling crystallization was used to produce CuSO4 crystal in a specific electrolytic plant in Yunnan province. In the actual industrial production, because of lower performance of the stirring cooling crystallization equipment, which lead to low efficiency of CuSO4 crystallization and affected the production efficiency of the plant seriously. Therefore, it is very important to modify and optimize the structure of the beater to improve the crystalline efficiency, the performance of this stir equipment and increase economic benefits.Based on the researches at home and abroad, the beater of this equipment was selected as the object of this study to explore the effects between beater structure parameters and the CuSO4 crystalline efficiency.The CFD numerical simulation technique was used to simulate the actual production of the beater with existing structure. A comparison was conducted between the power value of simulation results and theoretical calculation. At the same time, another comparison was conducted between the cooling curves measured in the experiments and simulated in the beater tank. Then, the cooling rate, mean flow rate and non-homogeneous were selected as the evaluation index to analyze the temperature field, rate field and concentration field among the stirring process with 9 groups of beater combinations with different types of blade to find effects between different types of beater structure and CuSO4 crystalline efficiency, and find the best blade combination. Finally, the effects of the performance of this stirring equipment and CuSO4 crystalline efficiency with the different distance between the lower blade and the bottom of the equipment and the different distance between the upper and lower blades was studied to find the optimum install structural parameters of the beater.It turned out that the CuSO4 crystalline efficiency could be improved effectively with applied with the upper CBY blade and lower propelled blade in a double beater combination. At the same time, with the distance between the lower blade and the bottom of the equipment kept the one-fifth of the stir stank diameter and the distance between the upper and lower blades kept the 1.1 times of the blade effect of diameter, the optimum structural parameters install size of the double beater and greatest crystalline efficiency of CuSO4 were also obtained..