| 摘要 |
Wet refuse is heated in a dryer 4 to remove most moisture therefrom while converting such moisture into steam for use in order to save energy consumption in a steam generating boiler (23). The dried refuse is then fed into boiler 23 for combustion where, because it has been dried, the combustion gas temperature within the boiler is greatly increased and thus the thermal efficiency improved. The preferred form of the system includes additional devices 27, 38 for preheating air used to support combustion of refuse enhancing the extent of combustion of combustible matter in the refuse. The preferred system also includes devices 34, 39 for increasing the recovery of residual heat content from the waste stack gas. <IMAGE> |
