Abstract:Stirred tank is important equipment for industrial application of wet vanadium extraction, but in practical application, there are problems of uneven mineral mixing and easy deposition at bottom of the stirred tank. The solid-liquid flow field of stirred tank with different bottom shapes was numerically simulated through computational fluid dynamic (CFD) FLUENT software by using multiple reference frame method (MRF), standard k-ε equation and Euler-Euler multiphase flow model. The results show that flat bottom agitation tank for big size particles is prone to solid phase deposition, and round bottom agitation tank can effectively solve the problem of deposition and stir more even and groove stir dead zone have fallen sharply. The flow field in different sites in the groove, the circular arc bottom agitation tank is better than the flat bottom agitation tank, turbulent kinetic energy and speed is helpful to improve the efficiency of solid-liquid mixture.