针对某660 MW四角切圆燃烧煤粉炉炉膛结渣严重的问题,依据实际燃用煤种,通过分析和燃烧调整,减轻了炉膛结渣,提高锅炉运行的安全性和经济性。增加主燃区氧量、提高一次风速、增加偏置二次风量以及加强吹灰等措施都能减轻炉膛结渣,煤质特性和锅炉特性是影响炉膛结渣的关键因素,因此建议实际燃用煤质应接近设计煤质。 Aiming at the serious slagging problem of a 660 MW tangentially fired pulverized coal fired boiler, the slagging of the combustion chamber is reduced and the safety and economy of the boiler are improved by analyzing and adjusting combustion according to the actual coal used. Increasing the amount of oxygen in the primary combustion zone, increasing the primary air velocity, increasing the secondary air volume and enhancing the soot blowing can reduce the slagging of the furnace. The characteristics of the coal quality and the characteristics of the boiler are the key factors affecting the slagging of the furnace. Therefore, it is suggested that the actual combustion Coal quality should be close to the design of coal.