HXDJ-5 is used to clean the ash and gypsum depositon GGH of desulfurization equipment, also can remove all kinds ofsalt deposit on air preheater of denitrification device. Duringoperation, HXDJ-5 clean the ash deposit and slag on surface of heatexchanger timely to guarantee the normal operation of heat exchangeequipment, which is significant for boiler normal operation andenvironment protection.