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为改善建筑陶瓷干法造粒过程坯料颗粒含水率不均匀性问题,采用CFD方法分析建筑陶瓷干法造粒过程坯料颗粒的含水率分布情况,建立干法造粒过程坯料颗粒含水率的CFD模型,改善坯料颗粒的含水率均匀性,同时实验测量坯料颗粒的含水率验证模拟结果的可靠性。数值仿真结果表明:当干法造粒时间分别为5.5 min、6 min、6.5 min时,造粒室内雾化水的质量百分比最大值分别约为9%、11%、12%,平均值分别约为6%、8%、9%,且雾化水的质量百分比云图均含三区间分布,坯料颗粒含水率分布均匀性较差。同时实验测试结果与数值仿真结果基本相吻合,验证了数值模拟模型的正确性,为干法造粒过程坯料颗粒的含水率研究提供了新的方法。
In order to improve the nonuniformity of moisture content in the dry granulation process of building ceramics, the CFD method was used to analyze the distribution of moisture content in the dry granulation process of building ceramics, and the CFD model of dry granulation process was established , To improve the uniformity of the water content of the billet particles, and to test the reliability of the simulation results of the water content of the billet particles experimentally. Numerical simulation results show that when the dry granulation time is 5.5 min, 6 min, 6.5 min respectively, the maximum mass percentage of atomized water in granulation chamber is about 9%, 11% and 12% 6%, 8%, 9%, and the mass percentage of atomized water cloud maps are distributed in three intervals, the uniformity of the distribution of the particle water content is poor. At the same time, the experimental results are in good agreement with the numerical simulation results. The correctness of the numerical simulation model is verified, which provides a new method for the study of the moisture content of the billet particles during the dry granulation process.