揺動火格子式ごみ焼却炉のごみの燃焼過程モデル

抄録

Recently, many steam-generating incinerator plants have been constructed for utilizing the heat energy in municipal refuse. In this situation, the improvement of abilities of the plants is becoming very important. Consequently, it is necessary to investigate several characteristics of the incineration process in the incinerator, and to develop a new automatic combustion control system in order to stabilize the steam flow rate.
In this paper, we propose a mathematical model which represents the incineration process for the reciprocating grate-type incinerator. We assume that the overall refuse on the furnace stoker is comprised of many refuse rectangular-column elements which are transferred in rows on the stoker. The combustion process of the refuse rectangularcolumn element consists of two processes; one is the drying process which is used to obtain both an ignition temperature curve and an endothermic (heat absorbing) rate, the other is the burning process providing an exothermic (heat releasing) rate. Many simplifying assumptions have been made to obtain the mathematical model. However, it is shown that the model is adequate to determine the ignition curve that is most influential in the overall incineration process, and to estimate the energy release rate along the stoker length.