中央储备粮广州新沙港直属库的浅圆仓有钢屋盖、混凝土屋盖两种结构。对两种屋盖浅圆仓投入使用后我们发现,钢屋盖浅圆仓与混凝土浅圆仓相比气密和隔热性能较差,出现了储粮熏蒸费用增高、储粮表层温度较高等问题。为确保储粮安全、节省保粮费用,经设计部门同意,对钢屋盖浅圆仓进行了气密、隔热性能改造,取得了较好的效果。现将有关 Central Reserve Grain Guangzhou Xinsha Port directly under the warehouse has a shallow silo steel roof, concrete roof two structures. After putting into use two kinds of shallow roof silos, we found that the shallow silo of the steel roof is inferior to the shallow silo of concrete in the properties of gas-tightness and heat insulation, and the costs of stored grain fumigation increase and the surface temperature of stored grain is higher problem. In order to ensure the safety of grain storage and save the cost of grain preservation, with the agreement of the design department, the airtight and thermal insulation performance improvement was carried out on the shallow silo of steel roof, which achieved good results. Now relevant