北方粳高粱微波干燥特性试验与仿真分析*

doi:10.13733/j.jcam.issn.20955553.2021.11.11

中国农机化学报 ›› 2021, Vol. 42 ›› Issue (11): 65-71.DOI: 10.13733/j.jcam.issn.20955553.2021.11.11

北方粳高粱微波干燥特性试验与仿真分析^*

张紫恒¹, 张吉军¹, 唐正¹, 曹龙奎^2,3, 衣淑娟¹, 陈嘉睿¹

1.黑龙江八一农垦大学工程学院,黑龙江大庆,163319;
2.黑龙江八一农垦大学食品学院,黑龙江大庆,163319;
3.黑龙江八一农垦大学国家杂粮工程技术研究中心,黑龙江大庆,163319

收稿日期:2021-01-29 修回日期:2021-04-30 出版日期:2021-11-15 发布日期:2021-11-15
通讯作者: 张吉军,男,1977年生,河北青龙人,硕士,副教授;研究方向为粮食干燥与农产品加工。E-mail: zhang_ji_jun2009@163.com
作者简介:张紫恒,男,1999年生,黑龙江哈尔滨人,硕士研究生;研究方向为农业工程与信息技术。E-mail: 597409715@qq.com
基金资助:
*黑龙江八一农垦大学国家级大学生创新训练计划项目(201910223023);黑龙江八一农垦大学“三纵”科研支持计划项目(ZRCPY202102);杂粮生产与加工特色学科项目(zlgc2020—01);国家重点研发计划(2018YFE0206300);黑龙江省优势特色学科资助项目(〔2018〕4号)

Experiment and simulation analysis of microwave drying characteristics of northern japonica sorghum

Zhang Ziheng¹, Zhang Jijun¹, Tang Zheng¹, Cao Longkui^2,3, Yi Shujuan¹, Chen Jiarui¹

1. College of Engineering, Heilongjiang Bayi Agricultural University, Daqing, 163319, China;
2. College of Food Science, Heilongjiang Bayi Agricultural University, Daqing, 163319, China;
3. National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing, 163319, China

Received:2021-01-29 Revised:2021-04-30 Online:2021-11-15 Published:2021-11-15

摘要/Abstract

摘要： 为明确微波干燥条件对高粱含水率和籽粒温度等干燥特性的影响,以粳高粱“龙杂10”为原料,在隧道式微波干燥机上进行连续式干燥试验。并利用HFSS软件仿真分析试验用干燥机的磁控管排布方式和微波作用距离对高粱干燥均匀性的影响。结果表明:随着单位质量功率在2~6 W/g范围内逐渐增加,含水率下降幅度先加快后渐缓,籽粒温度有所下降;每循环干燥时间在1.02~5.0 min范围内逐渐增加,含水率下降幅度显著增强,籽粒温度增加显著;排湿风速在0.0~2.0 m/s范围增加,含水率下降幅度有减小趋势,籽粒温度略有下降。仿真分析表明干燥机磁控管采用“三二三排布方式”、微波作用距离为250 mm时电磁场分布的均匀性更好,从理论上表明本试验采用的隧道式微波干燥机对高粱干燥均匀性是有利的。研究结果将为高粱微波干燥产业化应用提供理论和数据支持。

关键词: 微波连续干燥, 粳高粱, 干燥特性, 干燥均匀性

Abstract: In order to clarify the effects of microwave drying parameters on moisture content and temperature of sorghum,the continuous drying test is carried out on the tunnel microwave dryer using the japonica sorghum “Longza 10” as raw material. The influence of magnetron tubes arrangement and microwave action distance on the sorghum drying uniformity of the experimental dryer is simulated and analyzed by HFSS software. The results show that with the increase of power per unit mass in the range of 2-6 W/g, the extent of moisture content is accelerated first and then gradually decelerates and the temperature of grain decreases. With the increase of drying time per cycle in the range of 1.02-5.0 min, the extent of moisture content is significantly increased and the grain temperature increased significantly. With the increase of air velocity in the range of 0.0-2.0 m/s, the extent of moisture content is decreased and the temperature of grain decreases slightly. The simulation analysis shows that the uniformity of electromagnetic field distribution is better when the magnetron tube of the dryer is arranged in “three two three arrangement way” and when the microwave action distance is 250 mm. It is shown theoretically that the tunnel microwave dryer used in this experiment is beneficial to the drying uniformity of sorghum. The research results will provide theoretical and data support for the industrial application of sorghum microwave drying.

Key words: microwave continuous drying, japonica sorghum, drying characteristics, drying uniformity

中图分类号:

S226.6

张紫恒, 张吉军, 唐正, 曹龙奎, 衣淑娟, 陈嘉睿. 北方粳高粱微波干燥特性试验与仿真分析^*[J]. 中国农机化学报, 2021, 42(11): 65-71.

Zhang Ziheng, Zhang Jijun, Tang Zheng, Cao Longkui, Yi Shujuan, Chen Jiarui. Experiment and simulation analysis of microwave drying characteristics of northern japonica sorghum[J]. Journal of Chinese Agricultural Mechanization, 2021, 42(11): 65-71.

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北方粳高粱微波干燥特性试验与仿真分析^*

Experiment and simulation analysis of microwave drying characteristics of northern japonica sorghum

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