China Nonferrous Metallurgy

between the two phases. Taking into account surface tension and gravity, the equations for the conservation of mass and momentum are calculated in real time. The pressure-velocity coupling is realized by the SIMPLE scheme, and the interface reconstruction is achieved by the geometric reconstruction PLIC scheme. The effects of stirring speed, bubble size, surface tension, density ratio and initial position of bubbles on the motion and deformation of bubbles in the stirring tank were analyzed. The results show that the stirring speed can change the shape of the bubble, and the surface tension can maintain the shape of the bubble and prevent the deformation of the bubble. The bubble size and density ratio affect the velocity of the bubble, which further affects the deformation behavior of the bubble, and the difference of the initial position of the bubble has a significant impact on the movement and deformation of the bubble. The results of this paper can provide a theoretical reference for optimizing the flotation process parameters and improving the flotation efficiency of minerals.