What are the basic characteristics of circulating fluidized bed boiler combustion?

　　1) Low-temperature power controls the combustion process. Since the bed temperature of the circulating fluidized bed boiler is generally between 850 and 950°C, the combustion temperature is low, and the combustion reaction is controlled in the dynamic combustion zone. With the strong mixing of a large number of solid particles, the diffusion factor no longer affects the combustion speed. The dominant factor.

　　2) High-speed, high-concentration, high-flow solid material fluidization cycle process. The materials in the circulating fluidized bed boiler participate in the inner circulation of the furnace and the outer circulation composed of the furnace, separator, and return device. The entire combustion process and desulfurization process are completed in these two cycles.

　　3) High-intensity momentum, mass and heat transfer process. The circulating fluidized bed boiler can artificially change the circulation of materials in the furnace, and adapt to different combustion conditions by using the changes in the distribution of materials in the furnace. Due to the strong momentum, mass, and heat transfer processes, the temperature distribution in the entire furnace is relatively uniform.