一、前言物理化学和物理机械因素都影响浮选过程。物理机械因素包括:矿粒粒度、矿浆浓度、气泡瀰散特性、搅拌强度以及流体动力特性等。这些对颗粒与气泡的粘附有极大的影响,因此对提高浮选速度和选择性密切相关。 Gaudin等1931年就指出了颗粒粒度对浮选的影响,总结了美国和加拿大某些厂不同粒度矿粒的浮选行为。修曼最先研究了包含矿粒尺寸的浮选速度方程式,并提出 I. Introduction Physico-chemical and physical-mechanical factors affect the flotation process. Physical and mechanical factors include: ore particle size, pulp concentration, bubble dispersion characteristics, mixing strength and hydrodynamic properties. These have a great influence on the adhesion of the particles to the bubbles and are therefore closely related to the improvement of the flotation speed and selectivity. Gaudin et al. (1931) pointed out the effect of particle size on flotation and summarized the flotation behavior of mineral particles of different grain sizes in some plants in the United States and Canada. Schönmann first studied the flotation rate equation that includes the size of the ore particles and proposed