Abstract: Aspects of the invention are directed to an incinerator and ash removal system. The incinerator includes a grating system, which has pair of grating panels arranged in a V-shaped configuration. The panels can be independently pivotable from each other. Pivoting the panels during incineration can aerate the garbage being burned and can provide a stoking effect. Each panel includes a support rack on which a plurality of bricks is removably connected. The bricks can be configured with a plurality of channels that can deliver pre-heated air to the combustion chamber. The v-shaped grating can be directly above an ash removal system, which includes a first auger and a second auger. Generally, the first auger can break up the products from combustion, and the second auger can transport these products out of the combustion chamber.

Abstract: A scrubber for user in an incineration system to remove particulate materials and provide complete combustion of the combustion gas. The scrubber defines a scrubber chamber having an inlet through which hot combustion gas is introduced and having an outlet for discharge of the gas. Suspended within the scrubber chamber are a plurality of elongated plates composed of a temperature resistant metal, such as Inconel. The plates are arranged in a pattern to provide a tortuous path of flow for the combustion gas through the chamber, and prevent direct flow from the inlet to the outlet. In a preferred form of the invention, the plates are arranged in rows with the spacing between plates in one row being aligned with plates in an adjacent row. As the combustion gas flows through the chamber, the particulate material will migrate to, and collect on, the front and rear plate surfaces.

Abstract: An incinerator having an improved secondary combustion chamber. The incinerator includes a vertical stack through which the waste products of combustion are discharged and the upper end of the stack is connected to one end of an elongated, horizontal secondary combustion chamber. A plurality of hollow tubes, preferably formed of silicon carbide, are mounted in the wall of the chamber and extend radially of the chamber. Air is introduced into each of the tubes and is discharged from each tube through a plurality of holes that extend normal to the longitudinal dimension of the chamber. The discharge of air from the tube forms a series of air curtains which slows the flow of the waste gases and promotes combustion of any combustible residue in the waste gas.

Abstract: A water-cooled air supply system for the combustion chamber of an incinerator. A longitudinal trough is formed in the lower end of the combustion chamber and a plurality of air supply tubes are spaced above the bottom of the trough. Elongated shrouds are secured in spaced relation to the upper and lower portions of each air supply tube and define cooling passages that receive a cooling medium. A plurality of outlet ports are located in each side of each air supply tube between the spaced edges of the shrouds and air is discharged from the ports into the lower end of the combustion chamber.

Abstract: An ash removal apparatus for an incinerator. The combustion chamber of the incinerator is provided with a longitudinally extending bottom trough and a pair of endless chains are mounted to travel in longitudinal grooves in the sides of the trough. A plurality of cleats connect the chains and the cleats extend only along a portion of the length of the chains so that during the combustion process, the cleats are not located in the combustion chamber where they would be exposed to the intense heat of combustion to remove ash, the chains are operated to move the cleats along the trough to convey ash out of the combustion chamber to a discharge site.

Abstract: An improved stack construction for an incinerator. A layer of refractory material is disposed on the inner surface of the stack and an elongated tubular member is positioned longitudinally within the stack and spaced from the layer of refractory material to provide an annular passage therebetween. An air supply conduit is connected to one end of the tubular member, while the opposite end of the tubular member is closed. The tubular member is provided with a plurality of outlet ports disposed along a length of the tubular member with the outlet ports facing laterally outward and downwardly to direct air toward the refractory liner and in contact with the waste gases passing upwardly through the annular passage to thereby increase the turbulence of the waste gases and provide an increased efficiency of combustion.

Abstract: A water heating system for use with an incinerator. The incinerator includes a combustion chamber to burn waste material and a stack is connected to the combustion chamber to discharge the hot flue gases. Located within the stack is a heat exchanger. A water heating system is located within a building and includes a closed conduit having a pump to continuously circulate hot water through the conduit. A second conduit connects the first conduit with the heat exchanger in the stack and a second pump is employed to circulate water through the second conduit. In addition, a bypass is connected across the second conduit. A valving system is operable during periods when the incinerator is not operating to flow water through the first conduit and to separately flow water through the second conduit via the by-pass, so that water will continually flow through the heat exchanger.

Abstract: An incinerator having a generally cylindrical, horizontally disposed shell enclosed at its ends by vertical end plates and defining a combustion chamber. The upper sector of the shell is provided with a feed opening for introducing combustible waste into the housing and the opening extends continuously between the opposite end plates. Enclosing the feed opening is a generally curved door, the lower portion of which is hinged to the shell so that the door can be pivoted between a closed and open position. The gases of combustion are discharged from the combustion chamber through a stack and the upper portion of the shell bordering the stack can be formed with an enclosed heating jacket through which a heating medium can be circulated. Heat from the combustion of waste will act to heat the medium and the heated medium can be used for auxiliary heating purposes.

Abstract: A material treating apparatus, such as an incinerator, incorporating an auger having an internal air supply system and an internal heat transfer mechanism. The incinerator includes a cylindrical combustion chamber containing a rotatable auger, and waste material is fed to one end of the combustion chamber and is conveyed through the chamber by the auger, while ash and non-combustible residue are discharged from the opposite end of the chamber. The auger is composed of a tubular shaft which carries a hollow spiral flight. Air is introduced into the downstream end of the shaft and flows through the hollow flight and is discharged through outlet ports in the periphery of the flight into the combustion chamber. To cool the auger, water flows within internal passages in the hollow flight. The flight is formed with a forward wall facing downstream and a rear wall which is spaced from the forward wall to define a central air passage.

Abstract: A combustion apparatus utilizing an auger having an integral air supply system. The apparatus includes a cylindrical combustion chamber containing a rotatable auger. Waste is delivered to one end of the combustion chamber and is conveyed through the chamber by the auger, and ash and the non-combustible residue is discharged from the opposite end while the waste gases are discharged through a cyclone separator to remove fly ash. The auger is composed of a tubular shaft and a hollow spiral flight. Air is introduced into the downstream end of the shaft and flows through the hollow flight and exits through outlet holes in the flight into the combustion chamber. A portion of the air is introduced into the mass of waste being conveyed by the auger to provide primary air for combustion, while a second portion of the air is discharged from the flight into the upper zone of the combustion chamber above the level of the waste, to provide secondary combustion of the waste gases.

Abstract: An incinerator having a generally cylindrical, horizontally disposed shell enclosed at its ends by vertical end plates and defining a combustion chamber. The upper sector of the shell is provided with a feed opening for introducing combustible waste into the housing and the opening extends continuously between the opposite end plates. Enclosing the feed opening is a generally curved door, the lower portion of which is hinged to the shell so that the door can be pivoted between a closed and open position. The gases of combustion are discharged from the combustion chamber through a stack and the upper portion of the shell bordering the stack can be formed with an enclosed heating jacket through which a heating medium can be circulated. Heat from the combustion of waste will act to heat the medium and the heated medium can be used for auxiliary heating purposes.

Abstract: A combustion apparatus utilizing an auger having an integral air supply system. The apparatus includes a cylindrical combustion chamber containing a rotatable auger. Waste is delivered to one end of the combustion chamber and is conveyed through the chamber by the auger, and ash and the non-combustible residue is discharged from the opposite end while the waste gases are discharged through a cyclone separator to remove fly ash. The auger is composed of a tubular shaft and a hollow spiral flight. Air is introduced into the downstream end of the shaft and flows through the hollow flight and exits through outlet holes in the flight into the combustion chamber. A portion of the air is introduced into the mass of waste being conveyed by the auger to provide primary air for combustion, while a second portion of the air is discharged from the flight into the upper zone of the combustion chamber above the level of the waste, to provide secondary combustion of the waste gases.