论文部分内容阅读
首先介绍了立式辊磨机的结构和工作原理,然后在此基础上利用计算流体动力学仿真软件对立式辊磨机内部的空气流场分布特性进行了数值仿真研究。数值仿真结果表明,在立式辊磨机内部存在一个巨大的漩涡,该漩涡的存在不仅严重浪费了系统的能量,而且还改变了磨盘上物料层的稳定性,加剧了整个系统的运行不稳定性。初步揭示了立式辊磨机内部的空气流场分布特性,并为系统的结构优化提供了一定的依据。
Firstly, the structure and working principle of the vertical roller mill are introduced. Based on this, the numerical simulation of the airflow field distribution in the vertical roller mill is carried out by using computational fluid dynamics simulation software. The numerical simulation results show that there is a huge whirlpool inside the vertical roller mill. The existence of the vortex not only wastes the system energy but also changes the stability of the material layer on the disc and aggravates the instability of the whole system Sex. The air flow field distribution inside the vertical roller mill was initially revealed and provided a basis for the structural optimization of the system.