The basic principle and characteristics of the remote hydraulic sootblowers were presented and their application in large-scale coal-fired boilers in China was also summarized.On the whole

this kind of sootblower has good layout flexibility

and its simple soot blowing area can totally cover the slagging regions.Besides

it also has well coke removal effect and regulation performance as well as high soot blowing efficiency.It can adjust the soot blowing curves and intensity(including time

flow rate and pressure)according to the actual slagging location and degree. Finally

running of this sootblower has little effect on the boiler combustion system and steamwater systems

which can control the crack on water wall tubes effectively.Therefore

combining with the conventional steam sootblower

applying this remote hydraulic sootblower around the burner area can be considered as one of the major means to prevent slagging in boilers firing low ash-fusion temperature coals in china.