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根据湍流分散和湍流碰撞机理,初步研究了浮选槽内主要流体动力学参数对浮选微观子过程———气泡与矿粒碰撞速率和矿粒粘附、脱落几率———的影响,建立了浮选动力学数学模型.通过对模型参数的进一步研究,阐述了浮选微观动力学参数———碰撞速率系数和脱落系数———与浮选槽内主要流体动力学参数———气流数和搅拌雷诺数———间的相互关系,建立了数学模型,对优化浮选机技术参数具有一定的理论指导意义和实用价值.
According to the mechanism of turbulent dispersion and turbulent collision, the effects of the main hydrodynamic parameters of the flotation cell on the microscopic sub-processes of flotation, the collision rate between bubbles and ore particles and the probability of ore particles sticking and falling out, were studied. Flotation kinetic mathematical model. Through the further study of the model parameters, the micro-kinetic parameters of flotation --- the collision rate coefficient and the shedding coefficient --- and the main fluid dynamics parameters in the flotation tank --- the number of gas flow and the stirring Reynolds number --- The relationship between the establishment of a mathematical model to optimize the technical parameters of flotation machine has some theoretical significance and practical value.