| 摘要 |
<p>PURPOSE:To reduce an installing area, an ash taking-out device and a duct so as to decrease cost, set the maximum temperature of combustion discharged gas entering an air preheater to such a range as one capable of avoiding corrosion and further to enable a temperature of preheated air to become a desired temperature. CONSTITUTION:There are provided a primary gas cooling chamber 30 for guiding combustion discharged gas 6 generated after ignition of refuse and injecting cooling water to cool the combustion discharged gas 6; and an air preheater 34 cooperatively installed just below the primary gas cooling chamber 30 so as to heat the air taken into the chamber from the surrounding atmosphere with heat of the combustion discharged gas 6 guided from the primary gas cooling chamber 30 and to supply the heated air to the outside. In addition, there is also provided a secondary gas cooling chamber 39 cooperatively installed just below the air preheater 34 so as to inject cooling water to the combustion discharged gas 6 fed from the air preheater 34, cool the combustion discharged gas 6 and feed it to a filter device 41.</p> |
