降温缓苏多级顺流粮食干燥工艺的模拟研究  

Simulated study on multi-stage concurrent flow grain drying technology with ventilation tempering

作　　者：邢佐群[1] 孙佩东[1] 尹思万[1] 李晓红[1] 牛文祥[1] 顾冰洁[1] 

机构地区：[1]农业部干燥机械设备质量监督检验测试中心,佳木斯154007

出　　处：《农业工程学报》2008年第3期243-246,共4页Transactions of the Chinese Society of Agricultural Engineering

摘　　要：针对现实多级顺流粮食干燥机在结构及使用上的缺陷,依据粮粒在降温过程中内部水分扩散方程的相关理论,提出一种降温缓苏与顺流加热干燥相结合的降温缓苏多级顺流干燥工艺,并进行了该干燥工艺与理想型多级顺流干燥工艺的模拟对比试验,证明这种新干燥工艺具有更容易保证粮食品质,节能高效的优越性。Aiming at defects in structure and operation in some multi-stage concurrent flow grain dryers, a new kind of multi-stage concurrent flow drying technology with ventilation tempering combining ventilation tempering with concurrent flow heating drying was put forward, according to the theory concerning inside water diffusion equation in the process of grain kernel cooling. Simulation test was also carried out to compare the new drying technology with ideal multi-stage concurrent flow drying technology. The simulation results testified that the new drying technology has the advantages of easily maintaining grain quality, saving energy and obtaining higher efficiency.

关 键 词：粮食干燥工艺 多级顺流干燥 降温缓苏 

分 类 号：S375[农业科学—农产品加工]