| 摘要 |
The present invention provides a fluidized bed boiler capable of increasing a blending ratio of low-grade fuel and renewable fuel, etc. more steadily in an existing fluidized bed boiler, and a combustion control method using the same. To this end, the present invention relates to a fluidized bed boiler including a combustion furnace receiving and combusting air and fuel, a fuel supply unit provided on one side of the combustion furnace, and an air supply unit provided on a lower side of the combustion furnace. The combustion furnace has a CO concentration analyzer and a temperature sensor therein. The fuel supply unit includes at least one fuel inlet coupled to one side of the combustion furnace, and a fuel particle size controller. The air supply unit includes a fan supplying air, a duct coupled to the fan, and divided into a first duct and a second duct, an air box coupled to ends of the first and second ducts, and a decentralization sheet coupled to the air box to face the combustion furnace, and having a front surface with a plurality of orifices. The air box includes a first air box and a second air box. The first air box is coupled to the end of the first duct. The second air box is coupled to the end of the second duct. |
