建筑陶瓷干法造粒过程坯料颗粒含水率的研究

发布时间：2018-01-24 02:58

本文关键词： CFD模型干法造粒含水率均匀性　出处：《陶瓷学报》2017年03期 　论文类型：期刊论文

【摘要】：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。
[Abstract]:In order to improve the inhomogeneity of the moisture content of the billets in the dry granulation process of building ceramics, the distribution of moisture content in the dry granulation process of building ceramics was analyzed by CFD method. The CFD model of the moisture content of the billets in the dry granulation process was established to improve the uniformity of the moisture content of the billets. At the same time, the reliability of the simulation results was verified by measuring the moisture content of the billet particles. The numerical simulation results showed that when the dry granulation time was 5.5 min / 6 min and 6.5 min, respectively. The maximum mass percentage of nebulized water in granulation room is about 9 / 11 and 12 / 12 respectively, and the average value is about 6 / 8 / 9, respectively, and the mass percentage cloud map of atomized water contains three interval distributions. The distribution uniformity of moisture content of billet particles is poor, and the experimental results are in good agreement with the numerical simulation results, which verifies the correctness of the numerical simulation model. It provides a new method for the study of moisture content of billets in dry granulation process.
【作者单位】：景德镇陶瓷大学机械电子工程学院;
【基金】：国家自然科学基金(51365018) 江西省高等学校科技落地计划(KJLD14074) 江西省科技支撑计划(20151BBE50041)
【分类号】：TQ174.76
【正文快照】： 0引言料制备的认可[5]。因此,攻克干法造粒制粉技术存在的难题是建筑陶瓷行业原料制备节能减排的重要随着国家节能减排战略进一步深入,建筑陶瓷研究课题[6]。行业原料制备车间球磨-喷雾湿法造粒制粉技术带建筑陶瓷细粉料在干法造粒过程中,含水率不来的高能耗、高污染问题尤为

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