涡轮分级机叶轮流场分析与结构优化研究  

Flow Field Analysis and Structure Optimization Study of Turbine Classifier Impeller

作　　者：秦显柱 张健 唐钞发 唐明 Qin Xianzhu;Zhang Jian;Tang Chaofa;Tang Ming(Guilin Hongcheng Mining Equipment Manufacturing Co.,Ltd.,Guilin 541199,China)

机构地区：[1]桂林鸿程矿山设备制造有限责任公司,广西桂林541199

出　　处：《煤矿机械》2023年第3期142-145,共4页Coal Mine Machinery

基　　金：广西创新驱动发展专项资金项目(桂科AA19254010)。

摘　　要：针对涡轮分级机叶轮设计参数不易确定的问题,采用数值模拟方法,利用ANSYS软件对FM50型涡轮分级机分离CaCO3过程进行仿真分析。采用离散相模型模拟叶轮内部的气固两相流,使用随机轨道模型模拟5μm粒径颗粒在分级机内的运动轨迹,仿真不同叶轮形状、倾角和数量对分级机内部流场的运动轨迹和速度分布及对分级过程的影响。研究结果表明,分级机叶轮叶片安装径向偏移会影响分级效果,安装偏移角度为30°时,分级效果最好;分级机叶轮设计成长方形且叶片数在120左右时,分级效果最好。Aiming at the problem that the design parameters for the turbine classifier impeller are not easy to determine,the numerical simulation method was used to simulate the process of separating CaCO3in FM50 turbine classifier by using ANSYS software.By simulating the gas-solid two-phase flow inside the impeller using discrete phase model and the trajectory of 5μm particles inside the classifier using random orbit model,the trajectory and velocity distribution of different impeller shapes,inclination angles and numbers on the flow field inside the classifier and the influence on the classification process were simulated.The research results show that the installation radial offset of the classifier impeller blade affects the classification effect,and the best classification effect is achieved when the installation offset angle is 30°.The best classifying effect is achieved when the impeller of the classifier is designed as rectangular and the number of blades is about 120.

关 键 词：涡轮分级机 叶轮 流场 运动轨迹 速度 

分 类 号：TD454[矿业工程—矿山机电]