Particle size grouping method as a control system of efficiency flotation process on the example of coal

Agglomeration of coal particles during flotation can be analysed with the Particle Size Grouping (PSG) method. Numerous experiments were carried out to theoretically explain effect carbon agglomeration, but result still remains incomplete. In this paper PSG method was used analyse agglomeration groups initial size 100-400 ?m, maintaining total particle volume. The population definite radius and density determined for 1 Mg coal. influence given mixing energies parameter ? on analysed. It stated that had an their agglomeration. cases dimensionless collision turbulence t* needed in particular importantly shorter 300 400 ?m. change energy did not have particles. theoretical analyses based computer calculations supplemented by process aqueous model. Experiments lied introducing a foaming agent form solution hexanol which, without changing pH pulp, lowered surface tension value, consequently increased dispersion air suspension. experimental results presented kinetics curves. Fine 100-200?m. turned best flotation, unlike coarse 400-500