Structural Optimisation Study of Inflatable Microbubble Flotation Machine Based on Finite Element Method
Taking the inflatable microbubble flotation machine used in coal processing plant as the research object,a finite element model of the flow field in the flotation tank was established based on Fluent software and numerical simulation was carried out.It was found that the distance between the microbubble generator and the wall of the flotation tank was too close,which led to the coal slurry and bubbles rising too fast and could not be effectively adhered to,and led to the separation of the already adhered ones again under the action of turbulence,which limited the enhancement of the flotation effect.In order to analyse the influence of the distance between the microbubble generator and the wall on the flotation effect,it was set to 0.3 m,0.4 m and 0.5 m for simulation,and it was found that when the distance was 0.5 m,the rising speed of the liquid phase and the gas phase were slowed down,and the diffusion speed to the centre of the flotation tank was accelerated,so that it could promote the adhesion combination of the slurry and the air bubbles and enhance the flotation effect.
finite element methodflotation microbubble flotation machineflotation cell
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