| 摘要 |
PURPOSE:To perform an excellent and economical removal of the duct of a heat exchanger, by spraying particles, collected from combustion gas exhausted from a combustion furnace, to the heat exchanger. CONSTITUTION:A control box 21 opens a damper 24, mounted on a piping 11 for transporting air current, by means of each signal circuit and simultaneously discharges dust collected in a dust hopper 10 by a rotary feeder 25, and supplies particles (dust) to a cleaning device through the piping 11. The particles are injected from a nozzle 17 of a dust cleaning device body 13 through an inner tube and an outer tube, which are the end of the piping 11, to pass through a heat exchanger 36. During said passage, the control box 20 moves forward and backward the body 13 in a direction XY through the medium of an actuating lever 15 through control of valves 27 on piping 26 for pressure fluid connected to a driving device 16, and this uniformly injects the particles over all heat exchanging pipes. |
