循环流化床锅炉，简称CFB锅炉。是我国近年来新开发的一种技术先进、工艺可靠、运行稳定、热效率高、能燃烧低发热值煤（煤渣、煤歼石）的节能型锅炉。这种锅炉煤耗量大，风耗量大，运行过程中产生的烟量大、灰量大，渣量也大，故高浓度的烟尘随着高速的烟风对炉内设备（水冷壁 Circulating fluidized bed boiler, referred to as CFB boiler. It is an energy-saving boiler newly developed in recent years in our country with advanced technology, reliable technology, stable operation, high thermal efficiency, and low calorific value coal (cinder, coal-lined stone). This boiler coal consumption, wind consumption, the operation of large quantities of smoke, ash, slag is also large, so the high concentration of smoke with high-speed smoke on the furnace equipment (water wall