Study of Molding and Drying Characteristics of Compressed Municipal Sludge-Corn Stalk Fuel Pellets

Sludge incineration is a sludge resource management and disposal method that can greatly decrease the volume of sludge, reduce degree harm realize recovery heat energy. Most research on focuses combustion process gas emissions, but there are relatively few studies fuel molding drying before incineration. Besides, independent has high energy consumption. This paper proposes pre-incineration treatment in which corn stover mixed to make pellets then dried. Specifically, influence pressure, raw material ratio particle size physical properties fuel, related mechanism, were studied. The density particles mainly affected by forming impermeability determined proportion material. order variables based their effect improving was: pressure > size. Moreover, temperature (40 °C, 60 80 100 120 °C) been explored. When initial water content similar, rate increases with increase temperature. It provides reference for process, promotes practical application mixing stalks fuel.