The Key Technology Research Of Chromium Mist Recovery System Of Piston Rod Chromium Plating Line

In recent years, with the rapid development of modern industry, using electroplating technology to improve the life span and performance of product application is becoming increasingly widespread, however, the application of electroplating technology also brings many negative effects, including industrial pollution and the waste of raw materials. Therefore, how to scientifically improve electroplating cleaning system is becoming particularly important. But in our country, the study results and data about chromium mist recovery system design is lacked and relevant standards and norms are still blank. What’s more, how to design a set of high-efficiency, energy-saving and environmental protection of chromium mist recovery system still lacks design basis and data. This paper has proposed the design basis and developed a set of chromium mist recovery system based on a large amount of research, which used the modern analysis method and combined with production practice and the design of the piston rod chromium plating production line. By this system, the problems like the chromic anhydride resource waste and environmental pollution are solved.This paper designs a set of chromium mist recovery system for the chromium mist produced in the process of piston rod chromium plating. Through the investigation and argumentation, the overall layout and composition of system was determined and the main parameters of each component were designed and calculated. In order to reduce the pipeline pressure loss, the software ANSYS Workbench was used to complete the numerical simulation and optimization design of the size and shape of ventilation pipe and local parts in the chromium mist recovery system. The chromium mist collector and turbulent ball purification tower have been designed and the work efficiency of the system has been improved by combining traditional design with modern analytical method. The baffle demister, the core parts of chromium mist collector, has been mainly studied and the effect of parameters of the baffle demister on the recovery efficiency of chromium mist recovery system has been analyzed by the software ANSYS Workbench. Through the analysis and comparison, the optimal parameters and shape have been determined and the recovery efficiency of chromium mist recovery system has been effectively improved. At last, according to the parameters such as pressure loss and air quantity, the ventilation fan is selected. In conclusion, according to the parameters such as pressure loss and air quantity, the ventilation fan has been selected.In summary, based on traditional design theory and the modern design method, a chromium mist recovery system has been studied and analyzed by using the CAD/CAE technology in this paper. A reasonable set of chromium mist recovery system has been built, which can reduce the resources waste of chromium anhydride in the process of electroplating chromium and effectively protect the environment and the safety of workers.