The Importance Of Refractory And Wear-resistant Materials For Circulating Fluidized Bed Boilers

The circulating fluidized bed boiler is in operation, and the material in the boiler furnace is in the circulating flow state. Among them, the materials containing fuel, fuel ash, limestone and their reaction products are part of the external circulation in the circulation process, that is, in the closed circulation loop of the furnace - cyclone separator - return valve - furnace, they are in a constant high-speed circulation fluidizing state; Part of it is internal circulation, that is, the material with larger particles falls back in the furnace under the action of gravity. If the selection of refractory and wear-resistant materials is not suitable, the construction quality is not high, and the oven quality is not up to the specification requirements, it will seriously affect the normal operation of the CFB boiler.