Numerical Simulation And Design Of Air Distribution In Inlet Of Dust Collector

With the rapid development of steel production and deterioration of the atmospheric environment intensifies,people's survival and living environment are facing challenges.Iron and steel industry in the production process will produce a lot of flue gas and other by-products,caused serious pollution to the atmospheric environment.Iron and steel enterprises in the development of smelting steel under the main industry vigorously on the production of iron and steel production by-product recycling,Increase the non-steel benefits of the enterprise.Whether the flue gas is discharged or recycled,flue gas dust purification is the most important.Environmental protection has a strict requirement for flue gas emissions,metallurgical flue gas for coarse dust and then further fine dust can be discharged.Electrostatic precipitator is the main equipment of modern industry and even the steel industry for fine dust removal.Dust removal efficiency is high and dust removal than the traditional dust collector is significant,demand is also growing.In the case of low smoke and dust content of wet dust collector effect is also better.But the domestic enterprises are imitating the structure of foreign dust filter ideas to transform the product,exploring the technology to enhance the dust removal efficiency of the precipitator constantly and the dust distributor to get the ideal uniform flow of laminar flow distribution of the state.The distribution of flue gas flow is an important parameter to improve the efficiency of dust removal;this paper will be how to get the ideal airflow distribution as the research content.The flow field flow inside the precipitator is changed by arranging the air distribution plate in the dust collector.A three-dimensional geometric numerical model is established by computer numerical simulation software CFD,loading the multiphase flow and the multi-media physical model to solve the problem,the dust inlet and the internal flow field are obtained.By changing the position and opening ratio of the baffle in the dust collector inlet,a different flow state was Simulated and I airflow velocity values at different points was intercepted.According to a certain assessment method to obtain the optimal setting parameters and the test results were analyzed and verified.