Municipal waste thermal oxidation system

A minicipal waste incinerator, comprising:

• a primary combustion chamber for receiving waste materials to be burned to yield combustion gases, said primary combustion chamber being selectively sealable to provide for air-starved combustion of the waste material and including a top access door and a bottom access door, said primary combustion chamber being circular and including a floor disposed to slope downwardly to a central solids discharge opening , and wherein said bottom access door is selectively movable between an open and closed position;
• means for transporting said combustion gases to a secondary combustion unit for re-igniting the combustion gases;
• said secondary combustion unit including a chamber having a bottom feed opening for receiving the combustion gases, a top exhaust opening, and an intermediate choke and air mixing section;
• an air mixing means disposed in said air mixing section for supplying outside from a plurality of points around the periphery of the air mixing section, and being directed toward the center thereof;
• a plurality of re-ignition burners disposed around the periphery of said air mixing section immediately above said air mixing means, each of said burners being disposed such that a flame extending therefrom is directed about 30.degree. degrees off of center of the air mixing section, whereby the flames extending from the burners form a vortex to assist in the mixing and complete burning of the combustion gases before they exit the top exhaust opening;
• and
• a sloping screen disposed below said bottom access door, a fines conveyor disposed below said screen, and a sorting conveyor disposed adjacent one end of said screen whereby uncombusted solid materials discharged from the primary combustion chamber are separated for further processing.