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为解决传统方法对硅铝酸盐干燥再生过程中存在的效率低、能耗高、速度慢等问题,提出了一种硅铝酸盐微波干燥装置设计方案。测量了硅铝酸盐在不同含水率下的介电特性,利用多物理场仿真软件COMSOL对影响微波干燥效果的因素进行了仿真分析,设计了四馈口基础模块并对干燥腔尺寸、馈口过渡段等关键结构参数进行了优化。仿真表明,装置在40分钟加热过程中微波反射系数保持在-10d B以下,具有良好的干燥加热均匀性,能够实现对10%含水率硅铝酸盐均匀彻底的干燥。
In order to solve the problems of low efficiency, high energy consumption and slow speed in the traditional aluminosilicate drying and regeneration process, a design scheme of an aluminosilicate microwave drying device is proposed. The dielectric properties of aluminosilicate under different moisture contents were measured. The multi-physics simulation software COMSOL was used to simulate the factors which affect the microwave drying effect. The four-port basic module was designed and the drying cavity size, The transition section and other key structural parameters are optimized. The simulation shows that the microwave reflectivity of the device is kept below -10d B during the 40-minute heating process, with good uniformity of drying and heating, and uniform and thorough drying of the 10% moisture content aluminosilicate.