Incinerator with gas generation

Claim 1

An incinerator system for supplying hot gas for use outside the incinerator, comprising, in combination, a combustion chamber having spaced end walls joined by a substantially cylindrical side wall, an elongated narrow slot formed in said side wall defining an inlet nozzle extending longitudinally of the side wall throughout at least a major portion of the length of the combustion chamber, inlet duct means connected to said inlet nozzle for supplying combustion air and combustible waste material into the combustion chamber, said duct and nozzle being shaped to discharge a thin stream of the air and waste material in a direction substantially tangential to the inner surface of the combustion chamber adjacent the inlet nozzle, an elongated gas collector tube mounted coaxially within and extending substantially the full length of the combustion chamber and having one end extending outwardly therefrom through an opening in one of said end walls and terminating in an open outlet, the portion of said collector tube within said combustion chamber having a plurality of openings formed therein and spaced along substantially its full length to permit gases to flow from the combustion chamber into the collector tube substantially uniformly along the length of said combustion chamber, and to be discharged through said outlet, said collector tube is substantially frusto-conical in shape within the combustion chamber with the larger end of the frusto-conical tube extending through said opening in said one wall, auxiliary burner nozzle means for heating the combustion chamber to ignite combustible material entering the combustion chamber through said inlet nozzle, and housing means surrounding the combustion chamber for directing a flow of cooling air over the outer surface of the combustion chamber, said housing means including means surrounding said outlet for combining the cooling air and the combustion gases flowing from the collector tube outlet to provide the supply of hot gas.

Claim 17

A method of generating and supplying hot gas for use in heating and drying processes, comprising the steps of conveying combustible waste material in a stream of combustion air into a substantially cylindrical combustion chamber having closed end walls, discharging the combustible material and combustion air into the combustion chamber in a thin stream along substantially the full length of the combustion chamber and directed substantially tangential to the inner cylindrical surface of the combustion chamber, igniting the combustion material as it enters the combustion chamber, collecting the combustion gases in an axially extending collector tube mounted within the combustion chamber and having an open end extending through an opening in one end wall of the combustion chamber, the collector tube within the combustion chamber being substantially frusto-conical and having its larger end extending through the opening in the one end wall, the collector tube having its other end closed and having a plurality of openings in its side walls along substantially its full length within the combustion chamber to permit the combustion gases to enter and flow out the open end, the frusto-conical shape of the collector tube facilitating the escape of gases from the combustion chamber along substantially its full length, providing a flow of cooling air over the exterior of the combustion chamber to absorb heat therefrom, and conducting the cooling air away from the combustion chamber through a duct system including a venturi-like section surrounding the open end of the collector tube whereby the hot combustion gases and the cooling air are mixed together after the cooling air passes over the combustion chamber, the mixed combustion gases and cooling air constituting the hot gas for use in heating and drying processes.

Claim 18

A method of generating and supplying hot gas for use in heating and drying processes, comprising the steps of conveying combustible waste material in a stream of combustion air into a substantially cylindrical combustion chamber having closed end walls, discharging the combustible material and combustion air into the combustion chamber in a thin stream along substantially the full length of the combustion chamber and directed substantially tangential to the inner cylindrical surface of the combustion chamber, igniting the combustion material as it enters the combustion chamber, collecting the combustion gases in an axially extending collector tube mounted within the combustion chamber and having an open end extending through an opening in one end wall of the combustion chamber, the collector tube within the combustion chamber being substantially frusto-conical and having its larger end extending through the opening in the one end wall, the collector tube having its other end closed and having a plurality of openings in its side walls along substantially its full length within the combustion chamber to permit the combustion gases to enter and flow out the open end, the frusto-conical shape of the collector tube facilitating the escape of gases from the combustion chamber along substantially its full length, providing a flow of cooling air over the exterior of the combustion chamber to absorb heat therefrom, and conducting the cooling air away from the combustion chamber through a duct system including a venturi-like section surrounding the open end of the collector tube whereby the hot combustion gases and the cooling air are mixed together after the cooling air passes over the combustion chamber, the mixed combustion gases and cooling air constituting the hot gas for use in heating and drying processes.