lntroduction

Fluidized bed combustion boiler （FBC boiler）are widely used in industries such as building materials, chemicals, metallurgy, pharmaceuticals, etc. FBC boiler can use inferior coal instead of high-quality coal to generate high-temperature flue gas for direct or indirect heating
The fluidized bed combustion boiler is to send coal (size of 0-10mm), into the air distributor in the boiler, and the high-pressure air will make the coal particles and furnace material boil through the air distributor. Due to the fact that coal particles only account for about 1% of the furnace material; the contact area with air during boiling combustion is large and the relative movement speed is fast; and the time from raw coal entering the furnace to being discharged from the furnace is long; thus, some low-quality coal with high ash content and low calorific value that are difficult to burn through in other furnace can also be stably and fully burned in FBC boiler.