In application of soot blowers on boilers NO.5 and 6 at Jingyuan Power Plant

phenomena of blowing damage on water walls and tube-bursting on the economizers have occurred many times. Through analysis

it is considered that the IR-3D type soot blowers can be completely stopped under condition without slagging occurred in the furnace. At the same time

in order to correctly use the long-stem soot blowers

an optimal blowing cycle should be formulated

and operational maintenance and management of the soot blowers must be strengthened.