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上海市水产供销公司第三批发部为了保证鲜鱼贮存和供应,建造了一座现代化大型的冷冻厂。为防止外界热气传入,墙壁四周夹层和屋顶均用砻糠填入隔热。由于事先砻糠未作杀虫处理,且又在露天贮放过久而受潮,后来冷冻厂建成后,砻糠经过两年使用,至1983年5月底6月初发现了大量黑粉虫成虫,并有部份米黑虫。为此,上海市水产供销公司要求我们协助处理生虫砻糠。在上粮一库大力支持和帮助下,经实地了解和观察,该厂为七层楼建筑,四周墙高42米,第1—6层为冷冻厂车间贮存鲜鱼之用,温度为零下18℃,夹墙空问部分宽60厘米,填满了砻糠;第7层楼房长40米,宽40米共有面积1600平方米,高3米共有体积
Shanghai Fisheries Supply and Marketing Company’s third wholesale department in order to ensure the storage and supply of fresh fish, the construction of a modern large-scale refrigeration plant. In order to prevent the introduction of outside heat, the sandwich walls and the roof are filled with bran into the insulation. Due to the fact that the bran had not been treated with insecticide and had been stored in the open air for too long, it was damp. Later, after the construction of the plant, the bran had been used for two years. By the end of May 1983, a large number of adult worms were found and Some rice black insects. To this end, Shanghai Aquatic Supply and Marketing Company asked us to help deal with the worms bran. With the support and assistance of a foodstuff warehouse, the plant is a seven-storey building with 42 meters of walls around the wall. The first to sixth floors are for the storage of fresh fish in the workshop of the freezer, and the temperature is minus 18 ℃, wall space part of 60 cm wide, filled with bran; seventh floor 40 meters long, 40 meters wide and a total area of 1,600 square meters, 3 meters high total volume