Design and Application of Bulk Curing Barn Waste Heat Recycling System
The waste heat during curing stage was recycled and re-used,which was able to achieve the purpose of emission-reduction and energy-saving,and reduce the cost of baking.The waste heat recycling system of flue gas in tobacco bulk barn was designed and a contrast experiment was carried out for the baking tobacco leaves between the improved bulk curing barn and the conventional bulk curing barn.The results showed that,the system had obvious coal-saving effect,its average coal consumption for 1 kg dry tobacco leaves was 1.015 kg,being 0.362 kg and 26.29％ less than the conventional bulk curing barn,the improved bulk curing barn could save the cost by 0.33 yuan/kg,and its cost-saving rate was 19.88％.In addition,the appearance quality,grade structure and average price of flue-cured tobacco leaves were slightly improved than those of control-cured barn,especially,the quality of tobacco leaves was not affected in the bulk curing-barn.
bulk curing-barnwaste heat recycling system of flue gasenergy-saving effecttobacco leaf
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