Analysis of Flow Field in the KYF Flotation Cell by CFD

The characteristics of flow field in the KYF-0.2 flotation cell are studied by CFD, and PIV test is also carried out to verify CFD simulation results. CFD simulation results show that there is a vortex near the slurry-ward surface of impeller blades in the direction against the rotation direction, there appears the maximum velocity which is higher than the speed at blade tips. Both PIV measuring results and CFD simulation results indicate that high velocity region appears near the exterior of stator blades,where the velocity value is about 1.5 m/s. Comparison between CFD and PIV show that there are good consistency in velocity change trend and velocity value.