【摘要】 采用2种不同颜色的硅胶颗粒,研究混合器的填充率、转速等对颗粒混合过程的影响,探明颗粒在圆筒型混合器中的运动形态和混合机理。研究结果表明:混合过程中颗粒运动的流线不断被拉伸和弯曲,是形成颗粒扩散运动的重要机制;填充率和转速对颗粒的混合运动有明显影响:在填充率不变时,混合效果随混合器转速的提高(接近离心状态之前)而提高;当转速不变时,混合效果随填充率的提高(不超过70%)而提高;随填充率和转速的提高,颗粒的运动模式由Rolling模式逐步向Cascading模式发展。更多还原

【Abstract】 A series of experiments were carried on rotating drum blender of rotating drum blender and two kinds of silica granules in different colour to explore the characteristics and mixing mechanism of grains. This paper analysis the influences of rotation speed and vessel fill percentage on mixing efficiency. The results indicate that the granules mixing motion is impacted by vessel fill percentage and rotation speed. As the rotating speed and vessel fill percentage increasing, the mixing efficiency is enhanced and the move styles of granules in rotating drum blender changed from Rolling to Cascading.更多还原