In order to analyze the fouling characteristics of coal ash from Zhundong high-sodium coal after sodium removal process

related experiments are carried out on de-sodium coal using the coal ash sintering strength

the coal ash sintering ratio

and the 200 kW fouling test bench. The results show that

after sodium removal process of high-sodium coal

only the sodium content in the coal ash reduces and the other coal quality indicators are basically unchanged. The fouling performance of Zhundong de-sodium coal is significantly lower than that of the raw coal

but it is still a serious contamination grade. This is mainly related to the high content of CaO and MgO in the coal ash from Zhundong high-sodium coal. For Zhundong de-sodium coal in this study

it is recommended that the furnace exit gas temperature T_(FEGT)(vertical direction of the tip of the smoke deflecting corner) be less than 960 ℃

or that the sodium in the raw coal be removed to a lower value.