The experiment on rebuilding rising air current and traditional flue-curing barn into bulk curing barn was conducted by installing an auto-controlled temperature and moisture and hot air circulation system and by enlarging the stove and flue area. The results showed that the capacity of loading tobacco leaves was enhanced 67 ％, the density was increased by 23.6 kg/ma the temperature increased more quickly 6.2℃/h, the temperature and moisture inside the barn were more identical, the capacity of heat and moisture preservation was better, the temperature and humidity could be completely auto-controlled. Therefore, the capacity of rebuilt barn was improved greatly, the cured leaf quality and quantity improved and the curing cost had reduced.%通过增设温湿度自控系统和热风循环系统,加大炉灶、增加火管散热面积,将气流上升式普通烤房改为密集烤房,并进行对比试验.结果表明,改造后烤房装烟量平均增加67%,装烟密度增加23.6kg/m3,升温更加灵敏(平均达6.2℃/h),烤房内温湿度更加均匀,保温保湿能力更强,实现了温湿度自控,烤房性能得到很大程度提高,改造后烘烤烟叶产量提高7.0%,上等烟比例增加5.85个百分点,烘烤成本下降30.78%.
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