【摘要】 基于CFD-DEM耦合方法，研究了颗粒在水室内的流动状态，分析了不同刀盘转速、粒子水通入量和水室出口角度对造粒过程的影响，发现提高刀盘转速、增加粒子水通入量和水室出口倾斜一定的角度都有利于水室内颗粒的排出。进一步研究了颗粒与碎屑在水室内的流动，发现在水室出口处二者的流动基本呈现出一定的分离角度。更多还原

【Abstract】 Based on the CFD-DEM coupling method,the flow state of particles in the water chamber in an underwaterpelletizing device was studied,and the effects of the cutter shaft speed,inflow rate of the particle water,and chamber outlet angle on the palletizing process were analyzed. The results indicated that the discharge of particles in the water chamber could be enhanced by increasing the cutter shaft speed,inflow rate of the particle water,and chamber outlet angle. Furthermore,there was a separation angle between the pellets and polymer crumbs at the chamber outlet. The research results obtained in this paper can provide theoretical guidance for in-depth analysis of the working principle of underwater pelletizing device.更多还原