常压热水锅炉集中供热烘烤性能的研究

Baking Properties of Atmospheric Pressure Hot-water Boiler Used for Central Heating System

试验结果表明:与2009年常规密集烤房相比,用常压热水锅炉集中供热式烤房烘烤烟叶,可以分别降低每千克煤的烟尘排放量、SO2排放量和NOx排放量2.914、8.600和2.391 mg/kg,降低每千克干烟烘烤成本1.00元/kg,提高烤后烟叶均价1.26元/kg,降低单间运行总费用63.2元,提高单间净收益841元,而增加每间烤房初期建造成本3.0979万元。

The experimental results showed that ： in comparison with the conventional bulk curing barn used in the year 2009, using the baking room whose heat was provided by the atmospheric pressure hot - water boiler to bake tobacco leaves could reduce the emission quantity of flue dust, SO2 and NOx from 1 kg coal by 2. 914, 8. 600 and 2.391 mg/kg, respectively. It also could de- crease the curing cost of dry tobacco by 1 yuan/kg, increase the average price of flue - cured tobacco leaves by 1.26 yuan/kg, re- duce the operating cost of each curing barn by 63.2 yuan, and enhance the net income of single - barn by 841 yuan, but increase the initial investment of each curing barn construction by 30979 yuan.