摘要本文的主要内容是新型箱式盘架式干燥器的设计。本文介绍了干燥技术及其发展，所要干燥的物料是水果蔬菜等不适宜高温干燥的食物。对这些食物进行干燥处理后可以降低它们所含水分，防止腐败变质，有效延长了它们的保藏时间。82153

现有的实现这一过程的传统干燥器多采用高温加热脱去食物本身水分，虽然效果明显，但高温容易导致部分食物分子发生变化，影响食物味觉或使食物部分营养成分流失。传统的晒干和风干虽然可以避开高温对食物进行干燥，但容易受到灰尘污染且被环境因素制约。设计一款在常温下干燥食物的干燥器便可有效解决这些问题。新型箱式盘架式干燥器在箱体内部对食物进行干燥并加入除尘装置有效防止了灰尘污染，采用低功率压缩机作为除水装置和薄壁结构，不会因温度过高破坏食物成分，影响食物口感，破坏食物营养成分。

本文根据所需干燥的食物特性和产量来设计箱式干燥器，从而确定所有的结构参数，最后选取压缩机、风扇等装置。

毕业论文关键词：干燥技术、箱式干燥器、盘架式、常温干燥

Abstract The main content of this article is the design of the new box-type tray shelf dryer 。 This article describes the drying technology and its development, the material to be dried is not suitable for high-temperature drying fruits and vegetables and other foods。 These foods can be dried after reducing the moisture they contain, prevent spoilage, prolong their preservation time。

Traditional dryers existing implementations of the process to use more high-temperature heating water off the food itself, although the effect is obvious, but the high temperature easily lead to parts of the food molecules changes that affect food taste or result in the the loss of part of food nutrients。 While traditional sun-dried and air-dried food can avoid the heat for drying, but is susceptible to dust contamination and environmental constraints factors。 Dried at room temperature to design a food dryer can effectively solve these problems。 New box-type dryer at a shelf inside the box and add the dried food dust removing device effectively prevent dust pollution, low-power compressors and water as a means of thin-walled structures in addition to, not because of high temperature damage food ingredients, affect the taste of food, destroy food nutrients。

The box type dryer is designed according to the desired properties and dry food production, then I determine the structure of all parameters, and finally select the compressor, fan and other devices。

Keywords:drying technology, box-type dryer, shelf and tray, low-temperature drying

目  录

第一章 绪论 1

1。1  研究背景和课题来源 1

1。2  干燥行业国内（外）现状及存在问题 2

1。3  研究方法 3

第二章 干燥技术介绍 4

2。1  干燥的定义和原理 4

2。2  干燥发展的历史以及现状 5

2。3  干燥设备及其分类与特性 5

2。3。1  干燥设备介绍 5

2。3。2  干燥设备分类 6

2。3。3  干燥设备特性 6

2。4  干燥设备发展趋势 7

第三章 市场调研及方案设计 8

3。1  干燥器市场调研