Abstract:This study focuses on the dispersion effect of high-shear agitation tanks on insoluble reagents (using oleic acid as an example) in fine particle conditioning. Through CFD numerical simulation, the velocity field and oil droplet phase concentration distribution in the agitation tank were analyzed. The research found that under the same rotational speed, the standard Rushton impeller has a unit adsorption surface area power (Pb) of only 0.43 W/m2, showing advantages over forward-pitched 30° and backward-pitched 30° impellers. Its flow field characteristics effectively promote uniform dispersion of oil droplets while reducing energy consumption. By quantifying oil droplet size distribution, phase concentration, and power consumption indicators, this study reveals the mechanism of high-shear slurry preparation, providing a theoretical basis for the selection, design, and scale-up of slurry preparation equipment for fine particle mineral flotation. It has guiding significance for improving the flotation efficiency of fine particles and achieving energy-saving and consumption reduction.