In recent years, with the expansion of coal application scope and the enhancement of people's environmental protection awareness, circulating fluidized bed boiler, as a main "clean combustion" device, has been widely used, which shows its strong development momentum. For the selection of wear-resist

The economizer of the boiler is generally arranged in the tail flue, and the flue gas temperature is low. When the industrial boiler is started or operated under low working conditions, it is easy to cause the flue gas temperature to be low, thus causing low-temperature corrosion of the tail heating