【摘要】 在阐明风选原理的基础上,对风选机风箱内气流流场进行了研究,运用流体力学的知识建立了风选机工作时风箱内气流的流体数学模型。进而使用大型流体分析软件FLUENT对整个问题进行求解,并对求得的仿真结果进行分析,为风选的分离性能提供了可靠的依据,对后面工序提供了理论基础,最后针对气流入口的形状,入口的位置以及垃圾入口对整个风箱流场的影响做了进一步讨论,研究结果对于气流管道的结构设计有一定的指导意义。更多还原

【Abstract】 Based on introduction of working principle of the air classifier,the flow field of the bellows are researched and a relative the flow math model is constructed by using the computational field dynamics(CFD).The FLUENT software is used to solve the problem and then the simulation result is analyzed .The result of the research is significant in designing the air classifier.The influence of the entry shape,the entry location on the bellows’ flow field is discussed at last.更多还原