Modeling The Theoretical Solid-particle Separation Model Of Integrated Rotate Cyclone Separator And Numerical Simulation

Integrated rotate cyclone separator (IRCS) is a kind of dynamic cyclone separatorwhere ultrafine particle capture effect is remarkable. It could effectively separate particlesunder2.5microns by the combination of mandatory centrifugal effect of centrifugal fanwith the cylinder parts of conventional cyclone separator, which improves the tangentialvelocity of the cyclone separator. Based on a combination of machine workingcharacteristics and structure, the separation model is formed in this work. The radialtrajectories of particles under different conditions have been investigated by usingRunge-Kutta method. Simulation analysis is performed on the parameter space by means ofMonte Carlo method. Furthermore, the Newton dichotomy is used to obtain the criticalparticle diameter under specific conditions. Also, the CFD simulation is carried out on themodel under some working conditions to verify the reliability of separation system andused programs. The results show that:（1） When rotate speed and flow rate reaches1900r/min and1m3/s respectively, IRCScould easily capture the grain size larger than1μ m, density2800kg/m3(talc) particles.（2） Separation performance of IRCS increases with the rotating speed. When speed isabove1000r/min, the separation performance decreases with the increase of flow rate,which is contrary to that of the traditional cyclone separator.（3） Separation performance of IRCS is very sensitive to the particle size and density.With a decrease in particle size, separation performance of the machine decreasedsignificantly while it also reduced with the particle density decreases.（4） Performance of IRCS is also depending on the geometry size. The effects ofdiffusion angle and diffusion length on the separation performance of IRCS showdifferent rules in different conditions. The performance increases with the increase ofvertical section length.（5） Based on separation performance studies on the separation sections under various conditions, It is found that because of the own characteristics, curve section isinsensitive to condition and diffusion section would hinder the separation in most cases.In vertical section, the separating trend is obvious, but the residence time is short. Onthe contrary, the residence time is long enough in the separation cylinder section, whichleading the separating capability maintains strong.