PURPOSE: To prevent the generation of a bad effect produced by dust by installing a nozzle which sprays compressed air to the upstream side of each gaseous body at a high temperature and a low temperature of a revolving heat transfer body and its piping.
CONSTITUTION: A device, in which an air nozzle 13 is mounted to a pipe 12, is inserted inside from an internal inspection opening 11 where a proper spacing is given to the upstream side of combustion gas and air from the surface of a rotary heat transfer body 14 and the distance between the tip of each air nozzle 13 and a rotary heating element is set so as to keep a definite value. On the way of the device is installed a union joint 15 so that the nozzle may be oriented at an arbitrary direction. A compressed air is uniformly sprayed from the air nozzle 13 described above radiately for every definite time with force and the dust which is being deposited on meshes of the revolving heat transfer body 14 is arranged to pass through the meshes, thereby preventing the meshes from being clogged with the dust. It is, therefore, possible to operate stably and for a long time even under high temperature corrosive conditions, such as waste gas of a refuse incinerator by operating in this fashion.
| WO/2002/059537 | BYPASS SEAL FOR AIR PREHEATERS |
| WO/2001/044738 | ROTOR CONSTRUCTION FOR AIR PREHEATER |
NISHIZUKA YUKIMI
TATEIWA MIKIO
YASUDA SHIZUO
