焦炉应用高辐射覆层涂料的传热机制和节能效果

 酒钢焦化厂5号捣固焦炉应用了高辐射覆层技术， 6号捣固焦炉没有应用。热工测试组对5、6号焦炉进行了各项热工参数和节能涂料全面有效的对比检测。结果表明：5号焦炉比6号焦炉传热效率提高635%，焦饼中心温度提高14℃，废气温度降低了23℃。每年可节约焦炉煤气420.48×104m3，节能率为3.32%。炉窑统一热效率提高1.99%，炼焦耗热量降低了81.8kJ/kg（湿煤含质量分数7%的水）。每年CO2排放量减少1325×104 m3，获得了较为明显的经济效益和社会效益。并提出了进一步降低炼焦耗热量的途径。

Heat Transfer Mechanism and Energy-Saving Effect for the Coke Oven With High Radiation Coating

The high radiative coating technology was used in the coke oven 5 in Jiuquan Steel Co., The comparison test were conducted under different conditions in between the coke oven with and without coating. The results show that the heat transfer efficiency was increased 6.35% in coke oven 5, and the central temperature of coke cake increases 14℃, the flue gas temperature decreases 23℃ and saves coke oven gas 420.48×104 m3/a and the energy saving rate is 3.32%. The effective thermal efficiency of coke oven is increased 1.99%. The energy consumption for the coking process decreases 81.8kJ/kg coal（with 7%H2O）, and CO2 emissions reduces 132.5×104 m3/a. Obvious economic and social benefits can be obtained.