稀土灼烧过程温湿度场仿真分析

影响稀土灼烧工艺的因素十分复杂,关系产品质量稳定及能耗,现行工艺存在优化空间。通过剖析灼烧窑中温度和湿度分布状况,运用κ-ε双方程湍流模型、流体传热、多孔介质传热等理论,按特定组分运输模式,建立灼烧过程质量、动量和能量耦合传递数学模型。设置不同边界导入Fluent环境对数学模型进行仿真试验,完成数据处理实现工艺参数优化。结果表明所建模型能准确反映灼烧窑中温湿度场分布及变化,且最终仿真结果与实际灼烧后的产品湿度含量相符合。

Analysis of Temperature and Humidity Field of Rare Earth Burning Process

The factors affecting the burning process of rare earth are very complex,which is related to product quality stability and energy consumption.Existing technology has optimization space.By analyzing the temperature and humidity distribution in the kiln,using theκ-εtwo-equation turbulence model,fluid heat transfer,and porous medium heat transfer theory,the mathematical model of mass transfer,momentum and energy coupling is established according to the specific component transport mode.Simulating experiments on mathematical models by setting different boundaries into the Fluent environment,and complete data processing to optimize process parameters.The results show that the model can accurately reflect the temperature and humidity field of burning kiln distribution and changes,And the final simulation results are consistent with the actual moisture content of the product after burning.