论文部分内容阅读
粮食机械化干燥是采用工程技术措施,使粮食含水率下降到安全水分的过程;应用机械化干燥技术可减少和防止粮食霉变损失,有利增产增收。据有关资料统计,常年粮食霉变损失约为3％～5％,要使粮食达到安全贮存的目的,一般粮食作物籽粒的安全水分为13％～14％,油料作物籽粒为9％。粮食干燥技术粮食干燥是利用干燥介质促使粮食籽粒放出水气而进行的。目前,国内外普遍使用以空气为干燥介质的干燥机,它首先把空气加热到所需要的温度,利用风机把热空气的热量以对流方式传导给粮食,使其升温,水分汽化,然后将这部分水分带走,这时干燥介质起着载热体和载湿体的双重作用。在微波与远红外线干燥过程中,通过电磁波
The mechanization of grain drying is the process of using engineering and technical measures to reduce the moisture content of grain to safe moisture. The application of mechanized drying technology can reduce and prevent the loss of mildew of grain and increase yield and income. According to statistics, perennial grain mildew loss of about 3% to 5%, for food to achieve the purpose of safe storage, the general grain crop safety water of 13% to 14%, oil crop grain is 9%. Grain drying technology Grain drying is the use of dry media to promote the grain of grain water vapor and carried out. At present, the air dryer is widely used at home and abroad, which firstly heats the air to the required temperature, conveys the heat of the hot air to the food by convection by the air blower, heats it up and evaporates the water, Part of the moisture away, then the drying medium plays the role of heating medium and carrying the dual role of wet body. In the microwave and far-infrared drying process, through the electromagnetic waves