济钢300m^3高炉热风炉烟气余热利用

The Utilization of Flue Gas Thermal Energy of Hot Blast Stove of 300m￣3 blast Furnace on Jinan Iron and Steel General Works

为提高热风炉理论燃烧温度，提高风温，利用热风炉烟气余热预热助燃空气，是高炉增产节焦、降耗节能的重要措施。热风炉烟气余热利用技术已在济钢多座高炉上采用，该措施在技术上可行，可将助燃空气预热至１８０～２００℃，工艺布置简单易行，投资少，效益显著。

For enhancing theory combustion temperature of hot blast stove and incrcasing hot blast temperature, pre-heating aid combustion air used of flue gas thermal energy of hot blast stove is a important measure for blast furnace incredsing productivity, saving coke,decreasing consumption and saving energy . This technique has been used in blast furnaces of Jinan Iion and Stecl general works. Through preheating,the temperature of aid combustion air can be up to 180-200℃,This technique has simple process arrangement ,low investment and remarkable economics result.