Abstract：The blast dehumidification system outlet air humidity has very important influence on the blast furnace smelting process. Taking a certain domestic 2500m3 blast furnace, annual output pig iron 2.2 million tons for example, the cooling dehumidifying ways was used before the blowing, at the same time combines absorption refrigeration system which used vapor as its thermal source with vapor compression refrigeration system that was used as cool source in the dehumidification system, and a mathematical model was established to calculate the energy savings in the blast furnace smelting process under the condition of different humidity parameters in the Shanghai region dynamically. The results show that when the outlet air humidity declines, the energy-saving of the blast furnace increases, as well as the energy consumption of the refrigerating system. When the humidity reduces 0.1g/m3, the energy saves 0.01-0.07kg/t, the energy consumption of the double-effect refrigerating system is 0.01-0.03kg/t, the energy consumption of the single-efficient refrigerating system is 0.02-0.05kg/t, the energy consumption of vapor compression refrigeration system is 0.01-0.04kg/t. If the double-effect refrigerating system is just adopted, the outlet wind humidity should be 8g/m3. However if the single-efficient refrigerating system is just adopted, the outlet wind humidity should be 9.5g/m3, if vapor compression refrigeration is adopted to deep dehumidify, the outlet wind humidity should be 6g/m3.
收稿日期: 2013-02-22
出版日期: 2013-11-25
引用本文:
韩宗伟，赵晶，蔡九菊，徐鹤，丁慧婷. 脱湿鼓风对高炉系统能耗的影响[J]. 钢铁, 2013, 48(11): 16-20.
HAN Zong-wei,ZHAO Jing,CAI Jiu-ju,XU He,DING Hui-ting. Effect of Blast Dehumidification on Energy Consumption of Blast Furnace System. Iron and Steel, 2013, 48(11): 16-20.
2013, Vol. 48 
