Cyclone Dust Collector To Optimize The Design And Separation Characteristics

Cyclone separator is an important gas-solid separation equipment, which has many advantages, such as simple structure, compact equipment, easy to manufacture, relatively low-cost and so on. So it has been widely applied in the mining, chemical industry, energy source, environmental protection, metallurgy, building materials and the other industrial fields. However, because of unreasonable structure design and size matching factors, which restrict the efficiency improving, besides it wastes more energy consumption.At present, with the continuous growth of the national economy and the energy-saving reduction strategy proposed timely, people urgently need to research a new type cyclone separator that has much higher separation efficiency and lower consumption. Therefore, in view of the unperfect separation model and the weak prevalence of the traditional design method. In addition, people can't understand accurately the separation theories of cyclone separator. Using numerical simulation and optimal design combination of research methods, first of all, the thesis constructs an optimal mathematics model based on the classic Leith-Licht boundary layer separation theory, and then gains the configuration size under the design condition by the optimal function of MATLAB. Secondly, based on the anisotropy of RSM model, QUICK format, PRESTO format and SIMPLEC arithmetic, the thesis not only successfully simulates the double layers vortex flow structure of gas field, but also acquires the more ideal forecast results of the velocity and pressure field of the optimal cyclone separator by the commercial software FLUENT. And then based on the simulation of gas flow field, to simulate the inner solid phase of cyclone separator by two-phase fluid coupling of dispersed particle model (DPM), inspect the movement tracks of particles under different circumstances, and research the separation performance from the influence of different operating parameters and structural parameters. For example, different inlet particle concentration, different insert depth and diameter of riser, different vent diameter and different vertical tube length of cyclone separator. At last, based on the results of 3D flow field numerical simulation, prove the rationality of the size match and the feasibility of the design optimization and propose a universal design method for the future provision of cyclone separator.In the thesis, the study on optimal design and numerical simulation of cyclone separator can not only reflect the influence of configuration and operation parameters, but also provide reference for configuration optimization of cyclone separator. Therefore, it has significant application value in the engineering application and theoretical research.