硫酸铜搅拌装置工作过程数值模拟及结构改进

发布时间：2018-03-11 20:09

本文选题：搅拌装置　切入点：CFD　出处：《昆明理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：本论文以某企业电解厂中的硫酸铜搅拌设备为研究对象,其搅拌装置在正常工况下长时间工作时,会出现搅拌桨叶和搅拌轴弯曲、断裂,以及轴承的损坏,从而影响了硫酸铜的生产效率和质量。因此,搅拌装置的结构改进对于提高搅拌效果、减少搅拌设备的维修费用和经济损失是至关重要的。本论文通过详细调研原搅拌装置工况,找出其结构中存在的问题。针对搅拌轴在旋转的过程中出现明显的角度及横向的偏移问题,建立两种结构模型,并利用仿真软件Fluent和ANSYS Workbench对这两种结构模型进行CFD和FSI数值模拟分析,验证原搅拌装置结构是否会导致其失效。根据分析结果,并结合理论对搅拌装置进行结构改进。首先,通过对搅拌桨不同安装高度及不同层间距的搅拌性能进行研究,得出最优的搅拌桨的结构设计。其次,根据搅拌装置的工作特性,选择合理的搅拌轴支撑方式,并结合实验与理论数据,得出最佳的轴承间距。最后,对结构改进后的搅拌装置进行数值模拟分析及实际生产运用。全文对原搅拌装置进行结构分析及改进,并通过实际生产运用,得出改进后的搅拌装置在工作过程中更加稳定,并且能够大大提高搅拌效率及使用寿命。
[Abstract]:In this paper, the copper sulfate mixing equipment in an enterprise electrolytic plant is taken as the research object. When the mixer works for a long time under normal working conditions, the agitating blade and shaft will bend, break, and the bearing will be damaged. As a result, the production efficiency and quality of copper sulfate are affected. It is very important to reduce the maintenance cost and economic loss of the mixing equipment. To find out the problems existing in the structure, aiming at the obvious angle and lateral deviation of the agitated shaft in the course of rotation, two kinds of structural models are established. The simulation software Fluent and ANSYS Workbench are used to simulate and analyze the two structural models by CFD and FSI to verify whether the structure of the original mixer will lead to its failure. According to the results of the analysis and combining with the theory, the structure of the mixing plant is improved. Through the research on the mixing performance of the impeller with different installation heights and different layer spacing, the optimum structure design of the agitator is obtained. Secondly, according to the working characteristics of the agitator, a reasonable supporting mode of the agitator shaft is selected. Combined with the experimental and theoretical data, the best bearing spacing is obtained. Finally, the numerical simulation analysis and practical production application of the improved mixing device are carried out, and the structure analysis and improvement of the original mixing device are carried out in the full text. Through practical production and application, it is concluded that the improved mixing device is more stable in the working process, and can greatly improve the mixing efficiency and service life.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ131.21;TQ051.72

【共引文献】