Circulating fluidized bed boiler USES a high degree of industrialization of clean coal combustion technology. Circulating fluidized bed boiler adopts the fluidized combustion, the main structure including combustion chamber and cycle oven of two parts. With bubbling fluidized bed combustion technology is the difference between the high running speed, strengthened the combustion and desulfurization heterogeneous reaction process, such as boiler capacity can be expanded to power industry can accept large capacity, circulating fluidized bed boiler has been very good to solve the basic problem such as thermodynamics, mechanics, materials science and engineering problems such as inflation, wear and overtemperature, become the advanced technology of flame retardant solid fuel energy utilization.
Circulating fluidized bed boiler system is usually composed of fluidized bed combustor, circulating ash separator, fly ash loopback device, the tail heating surface and auxiliary equipment, etc. Circulating fluidized bed boiler system is usually composed of combustion system and soda system, fuel complete combustion process in the boiler combustion system, and through the burning of chemical energy is transformed into the flue gas heat, to heating medium; System function is through the heating surface absorption flue gas heat, complete the working medium for saturated steam by water change, again into the process of superheated steam.
Circulating fluidized bed boiler smoke wind system is circulating fluidized bed boiler wind system and flue gas system. Circulating fluidized bed boiler wind system is mainly composed of combustion with wind and transmission with the wind in two parts. The former includes a wind, secondary air, coal and wind, the latter including wind, limestone feeding back the wind and the cooling air, etc.
The circulating fluidized bed boiler with high efficiency, energy saving, low pollution of circulating fluidized bed boiler coal technology, it has a fuel wide adaptability, high combustion efficiency, high efficiency desulfurization, low NOX emissions, simple structure, convenient operation, and many other advantages.