浮选柱充气性能的研究

STUDY OF AERATION PERFORMANCE OF FLOATATION COLUMNS

The serious problems of current floatation column technique are poor aeration performance, uneven distribution of air bubbles and liquid and unstable hydrodynamics. For the first time the authors have studied the aeration properties of floatation column, the influence of apparent aeration velocity, Q_g, effective area of aerator, a, and assembly of corrugated steel plates on performance of floatation column,based on air bubble dynamics, by using a modified 2D table. The results of tests have proved that the improved 2D table is suitable for studying aeration performance of the column; and that if corrugated plate assembly is added, and if apparent aeration velocity and effective area of aerator are properly controlled, we can achieved almost ideal aeration effect.