煤粉锅炉由于安装质量、运行水平以及维修工艺等各种原因,均存在不同程度的漏风、烟、灰、热等问题,给锅炉的安全文明生产达标带来很大影响,严重者甚至威胁锅炉的安全运行。现结合我厂3号炉改造及炉顶密封工程,对锅炉漏灰及密封技术进行初步探讨。1 锅炉泄漏原因1.1 燃烧不稳定由于所选用的燃烧器为旋流式,燃烧不够稳定,经常放炮,使炉墙、炉顶各膨胀缝、穿墙管等处密封填料脱落;炉顶与炉墙之间接触薄弱 Due to various factors such as installation quality, operation level and maintenance process, pulverized coal boilers have various degrees of air leakage, smoke, ash, heat and other issues, which have a great impact on the safe and civilized production standards of the boiler. In severe cases, they even threaten the boiler Safe operation. Now combined with our factory No. 3 furnace renovation and roof sealing project, the boiler leakage and sealing technology to conduct a preliminary discussion. 1 reasons for boiler leakage 1.1 instability of combustion due to the selected cyclone swirl, combustion is not stable enough, often blasting, so that the furnace wall, the roof of the expansion joints, through the wall of pipe sealing filler off; roof and furnace wall Weak contact between