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1概述利用机械通风或自然通风降低粮温是目前低温储粮保鲜的重要手段。但在粮堆中长期多次地进行低温干燥空气交换,在降温的同时,必然会使储粮的水分大量丧失。特别是盛产早中稻的南方地区,原本入库的粮仓就很干燥,经过通风后,其水分降得更低。这就会给储粮造成严重损失,使其工
1 Overview The use of mechanical ventilation or natural ventilation to reduce food temperature is an important means of preservation of low temperature grain storage. However, the long-term low-temperature dry air exchange in the grain heap has been accompanied by a large amount of water loss during the cooling process. Especially in the southern region where early-middle-aged rice is abundant, the silos that were originally warehoused are very dry. After ventilation, their moisture levels have dropped even lower. This will cause serious losses to grain storage and make it work