Research on the effect of the density,particle size and concentration of coal particle on flotation

The particle-bubble aggregate model was established in order to investigate the effect of coal particle density,size and volume concentration on the terminal floating velocity,and on that basis deduced the calculation formula.The terminal floating velocity of particle-bubble aggregate is predicted by calculation formula.The calculation result revealed that the difference of terminal floating velocity is enlarged with the increase of particle size,and the terminal floating velocity is closed to each other with the increase of volume concentration of coal particle.