| 摘要 |
<p>PURPOSE:To raise a contact efficiency of desalting agent with hydrogen chloride, to reduce a using amount of the agent and to decrease corrosion of a heat transfer tube by mixing the agent with refuse to be discarded in a fluidized bed. CONSTITUTION:A fluidized bed refuse incinerator 10 has a fluidized bed 12 at a bottom, and an air dispersing plate 14, an exhaust tube 16, a free board 18, a refuse inlet 20 and a desalting agent supply port 22. Desalting agent is previously mixed with refuse 21, and charged from the inlet 20. In this case, it is preferable to sprinkle powder particles of the agent over the refuse 21 and to charge it. The agent charged in the layer 12 is reacted with HCl generated by combustion of the refuse 21 to become metal oxide, and desalted. Further, the agent is mixed with the refuse 21, supplied, and the agent can be also supplied from the port 22. When CaO is used as the agent, as the layer temperature is controlled to 400-600 deg.C, HCl concentration can be set to about 320ppm or less.</p> |
