快装锅炉具有结构紧凑、体积小、安装方便等优点,但对煤种的适应性不强,还由于设计上的缺陷,形成在燃烧中炉膛温度偏低,排烟温度高,加之炉体系轻型结构,只有耐火砖、（石至）石保温,造成炉体保温性能差,形成漏风,散热损失比较严重。 针对快装锅炉存在的这些问题,我们采取了锅炉前后加异型拱炉体保温的措施,改善了原来的运行工况,延长了锅炉的服务年限,取得了突出的节煤效果。 Fast boiler has the advantages of compact structure, small size, easy installation, but the adaptability of coal is not strong, but also due to design flaws, the formation of the furnace in the combustion temperature is low, the exhaust gas temperature is high, combined with the furnace light Structure, only refractory bricks, (stone to) stone insulation, resulting in poor insulation properties of the furnace, the formation of air leakage, heat loss more serious. In view of these problems of the quick-loading boiler, we adopted the measures of keeping the special-shaped arch furnace body before and after the boiler to heat, improving the original operating conditions, prolonging the service life of the boiler and achieving outstanding coal saving effect.