Scientific and efficient use of ventilation equipment to ventilate the granary can effectively control the temperature of the grain pile and ensure the safety of grain storage.In order to explore the temperature variation law of grain pile during the ventilation process of grain cooler,two squat silos and three bungalow silos were successively cooled and ventilated by grain cooler.The results revealed that the ventilation effect of the squat silo was good,and the temperature transfer rate was about 1.7-1.9 m/d.After 11 days of ventilation,the grain temperature in the whole silo would be reduced,and there was no dead space for ventilation;air duct will be formed during the ventila-tion of the bungalow warehouse,disrupting the original cold core of the grain pile,effectively reducing the average grain temperature,but it was unable to achieve uniform reduction of the grain temperature of the whole warehouse,and there was a dead space for ventilation.
维普
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