带式烘干机风速场均匀性试验研究

doi:10.13733/j.jcam.issn.2095-5553.2024.02.019

中国农机化学报 ›› 2024, Vol. 45 ›› Issue (2): 130-134.DOI: 10.13733/j.jcam.issn.2095-5553.2024.02.019

带式烘干机风速场均匀性试验研究

张鹏飞1, 2,刘加伟1,刘鑫1,陈博2,张琦1,薛东晓1

出版日期:2024-02-15 发布日期:2024-03-19
基金资助:
江苏省成果转化项目(BA2020071);江苏省现代农业重点基金(BE2018360)

Experimental study on the uniformity of airflow velocity inside belt dryer

Zhang Pengfei1, 2, Liu Jiawei1, Liu Xin1, Chen Bo2, Zhang Qi1, Xue Dongxiao1

Online:2024-02-15 Published:2024-03-19

摘要/Abstract

摘要： 物料含水率均匀性是物料品质的重要指标,与烘干机内部气流均匀性相关。烘干机结构与工艺参数对烘干机内部流场均匀性产生较大影响。使用正交试验的方法研究导流板角度(30°、40°、50°)、侧风道均流板个数(1、2、3)与循环风机频率(20 Hz、30 Hz、40 Hz)对烘干机内气流分布的影响,找到最优的因素水平,使烘干机内部风速场最均匀。研究结果表明:风机频率对上料层的风速场影响最显著;导流板角度对上料层风速场影响最不显著。导流板角度对下料层风速场影响最显著;风机频率对下料层风速场影响最不显著。当因素水平组合为导流板角度30°,均流板3个,风机频率20 Hz时,烘干机内风速场最均匀。

关键词: 带式烘干机, 风速场均匀性, CFD仿真, DOE设计

Abstract: The uniformity of feed moisture content is an important parameter related with pellet quality. That the structure and process parameters of the dryer influence the uniformity of air distribution inside the dryer, thus affecting the feed uniformity of the moisture content. Effects of different deflector angles (30°, 40°, 50°), number of side air duct flow plate (1, 2, 3) and fan frequency (20 Hz, 30 Hz, 40 Hz) on airflow distribution are studied by the method of orthogonal experiment. The results show that the fan frequency has the greatest effect on the wind velocity field of the upper layer and the angle of the deflector plate has the least effect on the wind velocity field of the upper layer. The angle of deflector plate has the greatest influence on the wind speed field of the lower layer and the fan frequency has the least influence on the wind speed field of the lower layer. When factor level combination is 30° angle of deflector plate, 3 side air duct flow plates and 20 Hz fan frequency, the wind velocity field in the dryer is the most uniform.

Key words: belt dryer, wind velocity field uniformity, CFD simulation, DOE design

中图分类号:

张鹏飞, , 刘加伟, 刘鑫, 陈博, 张琦, 薛东晓. 带式烘干机风速场均匀性试验研究[J]. 中国农机化学报, 2024, 45(2): 130-134.

Zhang Pengfei, , Liu Jiawei, Liu Xin, Chen Bo, Zhang Qi, Xue Dongxiao. Experimental study on the uniformity of airflow velocity inside belt dryer[J]. Journal of Chinese Agricultural Mechanization, 2024, 45(2): 130-134.

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[1]	徐陶, 吕晓兰, , 祁雁楠, 曾锦, 雷哓晖, 袁全春. 我国果园风送式喷雾装备与技术研究进展[J]. 中国农机化学报, 2023, 44(7): 69-77.
[2]	张鹏飞;吴鹏鹏;张琦;陈博;奚小波;张剑峰;. 基于带式烘干机的循环风机频率对料层表面风速场分布的模拟及试验[J]. 中国农机化学报, 2019, 40(2): 81-88.

带式烘干机风速场均匀性试验研究

Experimental study on the uniformity of airflow velocity inside belt dryer

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