Modeling Hydrodynamic Effect on Flotation Selectivity. Part I: Influence of Air Bubble Diameter and Turbulent Energy Dissipation
V. D. SAMYGIN1, P. V. GRIGOR’EV2
1National University of Science and Technology MISiS, Leninskii pr. 4, Moscow, 119049 Russia
2Enforcer Engineering, Ryazanskii pr. 24, Bld. 2, Moscow, 109428 Russia
Keywords: модель, селективность, флотация, пузырек, диссипация, субпроцесс, раскрытие
Abstract
The computer experiments on air bubble attachment and detachment with particles from 36 fractions of ore with different size and copper content display the influence of air bubble diameter and energy dissipation on the flotation selectivity. The concentration reached 80 at the optimized bubble diameter of 265 µm, which is 5-8 time higher than with the air bubble diameter of 1000-2000 µm standard for impeller flotation machines.
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