中间水分大豆振动真空微波联合干燥过程的研究

doi:10.13386/j.issn1002-0306.2013.01.034

中间水分大豆振动真空微波联合干燥过程的研究

doi: 10.13386/j.issn1002-0306.2013.01.034

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中图分类号: TS225.13
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- 收稿日期: 2012-08-06

Research on the drying process of intermediate moisture soybeans by vibration-vacuum and microwave combination

摘要

摘要: 为了进一步研究中等含水率物料的干燥特性,解决传统干燥方法中物料干燥不均匀、品质下降严重等问题,将振动和真空单元与微波干燥相结合,比较了干燥过程中微波功率、装载量和振动频率对含水率的影响。综合考察了同等条件下热风干燥、传统微波干燥、微波振动干燥和微波真空振动干燥的干燥特性。结果表明:在真空度-0.065MPa以下,微波输出功率0.5～1.0W/g,传动电机转速350～550r/min的范围内,提高微波功率质量比、增加转速、优化装载量均有助于缩短干燥时间、提高干燥效率;振动-真空微波联合干燥与传统热风干燥相比能耗降低70%,与微波振动干燥相比爆腰率降低60%。在降低能耗量的同时保证了物料的干燥品质。
- 微波干燥; /
- 真空; /
- 振动; /
- 大豆;
Abstract: In the traditional drying process, problems such as uneven drying and sharply decline of the quality were usually inevitable.In order to make a further study on the drying characteristics of materials with intermediate moisture content, described a new drying approach to analyze the effect of microwave power, loadage of materials and vibration frequency on the moisture content.And the characteristics of hot-air drying, traditional microwave drying (MD) , microwave-vibration drying (MVD) and microwave-vacuum-vibration drying (MVVD) in the same conditions were investigated.The results showed that improving the ratio of microwave power versus mass, increasing vibration frequency and choosing a appropriate loadage helped to shorten the time and improve the efficiency of drying, with the condition of vacuum degree below-0.065MPa, output power 0.5 ~ 1.0W/g and vibration motor drive speed in range of 350 ~ 550r/min.Compared with traditional hot-air drying process, the MVVD had 70% reduction of energy consumption which could reduce 60% of crack rate than MVD process.This combination drying process ensured higher quality and cost less energy at the same time.
- microwave drying;vacuum;vibration;soybean; /

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参考文献(25)

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文章访问数: 36
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中间水分大豆振动真空微波联合干燥过程的研究

doi: 10.13386/j.issn1002-0306.2013.01.034

计量

出版历程

Research on the drying process of intermediate moisture soybeans by vibration-vacuum and microwave combination

计量

出版历程

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