NOVELTY - A controller (11) inside a refuse carbonization furnace performs temperature control of the furnace, refuse stirring control and switching operation of insertion and ejection openings (45,46). The furnace has infrared radiation heaters and electric heaters (52) to heat the furnace wall surface.    USE - For carbonization processing of refuse.    ADVANTAGE - Because of the simple structure, the system is compact and safe. The controller facilitates automatic control for safe suitable carbonization process and recycling of refuse. Since the secondary zone heat processes at 800-900 degrees C, it decomposes and removes dioxins thereby clean exhaust gas is obtained and soot generation is prevented. Thus environmental pollution is avoided.    DETAILED DESCRIPTION - The furnace housing has a cylindrical cross-section. A motor driven stirrer (42) is placed at the inner bottom of the furnace. The furnace is divided into upper and lower zones (60,50). The lower zone has inner and outer cylinders (47,48). The inner cylinder has insertion and ejection openings, and electrical heaters (43a) are also provided to the periphery of the inner cylinder. The primary zone heats the refuse for 8-15 hours at 350-500 degrees C without airflow so as to uniformly grind and carbonize the refuse. Then the generated gas in the lower zone is processed in the upper zone at 800-900 degrees C without airflow. The system has an empty can crusher with a window enabling measurement reading of a control unit of the can crusher.    An INDEPENDENT CLAIM is included for a refuse carbonization process which involves turning the stirrer in one direction by the controller. The insertion opening is closed automatically when the amount of refuse in furnace interior reaches a predetermined amount. Then heaters are switched onto heat the furnace with 1-10 seconds. The whole process is repeated after 3-10 hours. The controller releases the ejection opening when the primary zone is below predetermined value.    DESCRIPTION OF DRAWING(S) - The figure shows the front elevation of the refuse processing system.    Controller (11)    Motor driven stirrer (42)    Electrical heaters (43a,52)    Insertion and ejection openings (45,46)    Inner and outer cylinders (47,48)    Lower and upper zones (50,60)