▎ 摘　　要

NOVELTY - The utility model claims a long soot blower sealing structure of boiler, comprising an alloy frame; four corners of the lower end of the alloy frame is provided with an alloy support; the upper end of the alloy frame is equipped with an alloy bottom plate; the right side of the upper side wall of the alloy bottom plate is provided with a metal bracket; the upper side of the front end face of the metal bracket is equipped with a control box; the utility model claims a boiler long soot blower sealing structure by adding sealing air system; the sealing air pipe is connected to the ash blower lifting valve emptying pipe; when the soot blower is stopped, the sealing air is blown into each ash blower air valve through the emptying pipe; then through the lifting valve; the inner and outer pipe plugs the flue gas in the furnace at the nozzle of the soot blower, so as to effectively isolate the flue gas from flowing into the gun barrel to erode the inner and outer pipe; the inner pipe filler and the lifting valve sealing surface; the corrosion of the device is reduced; the reliability and the service life of the device are improved; and the maintenance cost is saved.