Incinerator with stack transition chamber

Claim 2

An incinerator assembly for incineration of human and animal wastes and the like, comprising a primary combustion chamber portion including a refractory lined jacket defining an enclosure about a primary combustion chamber having an upper fill opening for introducing waste material into the chamber, grate means subdividing the primary combustion chamber into an upper chamber portion above the grate means and a lower chamber portion below said grate means, a first burner assembly communicating with said lower chamber portion for projecting a flame into the latter, and exhaust gas outlet stack extending upwardly from said primary combustion chamber portion in communication with said chamber, a transition chamber interposed in said stack at a location spaced a distance substantially corresponding to the height of said primary combustion chamber above said jacket enclosing said primary combustion chamber, said transition chamber including an outer wall and a second burner assembly communicating therewith defining a secondary combustion chamber for subjecting exhaust gases and combustion products discharged from the primary combustion chamber into said stack to after-burning to destroy odors and pathological organisms therein, and said stack having a refractory lined portion spanning the distance between said primary and secondary combustion chambers, said transition chamber comprising a cylindrical refractory lined wall concentric with a horizontal center axis and a circular refractory lined end wall collectively defining said secondary combustion chamber of cylindrical confiGuration, said second burner assembly projecting a flame from adjacent one end of the chamber generally along said horizontal axis, the refractory lined stack portion having an upper outlet opening into said secondary combustion chamber closely adjacent said one end to direct the exhaust gases into said flame, and a baffle member in said secondary combustion chamber for prolonging the retention time of the exhaust gases therein.

Claim 3

An incinerator assembly as defined in claim 1 wherein said baffle member is an interrupted cylindrical metallic sheet of smaller diameter than the inner diameter of the secondary combustion chamber concentric with said horizontal center axis spanning only part of the axial length of the secondary combustion chamber and having a downwardly facing open segment alined with the upper outlet of said stack portion.

Claim 4

An incinerator assembly as defined in claim 1 wherein said baffle member is an interrupted cylindrical metallic sheet of smaller diameter than the inner diameter of the secondary combustion chamber concentric with said horizontal center axis spanning only part of the axial length of the secondary combustion chamber and having a downwardly facing open segment alined with the upper outlet of said stack portion flanked by outwardly radiating flanges extending to the inner surfaces of the refractory lined cylindrical wall.

Claim 5

An incinerator assembly as defined in claim 3, including a temperature sensor in said stack below said transition chamber, and electrically controlled fuel regulating valve means for said burner assemblies to terminate fuel supply to the latter while the temperature adjacent said sensor is above a selected level.

Claim 6

An incinerator assembly as defined in claim 1, including a temperature sensor in said stack below said transition chamber, and electrically controlled fuel regulating valve means for said burner assemblies to terminate fuel supply to the latter while the temperature adjacent said sensor is above a selected level.

Claim 7

An incinerator assembly as defined in claim 1, including a hinged closure for said fill opening, said closure comprising a door having a refractory surface facing inwardly toward the combustion chamber, a counterweight member fastened to said door, a handle including an axially elongated cylindrical rod portion journaled in bracket members fixed to the door for rotation about a horizontal axis and a handle portion extending radially from the cylindrical rod portion, the rod portion having a rod latch formation along the cylindrical rod portion of semi-circular cross-section interrupting thd normal circular cross-section of the rod portion, and a stationary latch bracket on the enclosure having a slot sized to accommodate entry and exit of the rod latch formation when the handle occupies a selected angular position and having an enlarged slot portion defining a shoulder formation for receiving and latching the rod portion in door closing position at another angular position of the handle.

Claim 8

An incinerator assembly as defined in claim 3, including a hinged closure for said fill opening, said closure comprising a door having a refractory surface facing inwardly toward the combustion chamber, a counterweight member fastened to said door, a handle including an axially elongated cylindrical rod portion journaled in bracket members fixed to the door for rotation about a horizontal axis and a handle portion extending radially from the cylindrical rod portion, the rod portion having a rod latch formation along the cylindrical rod portion of semi-circular cross-section interrupting the normal circular cross-section of the rod portion, and a stationary latch bracket on the enclosure having a slot sized to accommodate entry and exit of the rod latch formation when the handle occupies a selected angular position and having an enlarged slot portion defining a shoulder formation for receiving and latching the rod portion in door closing position at another angular position of the handle.

Claim 9

An incinerator assembly for incineration of human and animal wastes and the like, comprising a primary combustion chamber portion including a refractory lined jacket defining an enclosure about a primary combustion chamber having an upper fill opening for introducing waste material into the chamber, grate means sub-dividing the primary combustion chamber into an upper chamber portion above the grate means and a lower chamber portion below said grate means, a first burner assembly communicating with said lower chamber portion for projecting a flame into the latter, and exhaust gas outlet stack extending upwardly from said primary combustion chamber portion in communication with said chamber, a transition chamber interposed in said stack at a location spaced above said primary combustion chamber, said transition chamber including an outer wall and a second burner assembly communicating therewith defining a secondary combustion chamber for subjecting exhaust gases and combustion products discharged from the primary combustion chamber into said stack to after-burning to destroy odors and pathological organisms therein, and said stack having a refractory lined portion spanning the distance between said primary and secondary combustion chambers, a hinged closure for said fill opening, said closure comprising a door having a refractory surface facing inwardly toward the combustion chamber, a counterweight member fastened to said door, a handle including an axially elongated cylindrical rod portion journaled in bracket members fixed to the door for rotation about a horizontal axia and a handle portion extending radially from the cylindrical rod portion, the rod portion having a rod latch formation along the cylindrical rod portion of semi-circular cross-section interrupting the normal circular cross-section of the rod portion, and a stationary latch bracket on the enclosure having a slot sized to accommodate entry and exit of the rod latch formation when the handle occupies a selected angular position and having an enlarged slot portion defining a shoulder formation for receiving and latching the rod portion in door closing position at another angular position of the handle.

Claim 10

An incinerator assembly for incineration of human and animal wastes and the like, comprising a primary combustion chamber portion including a refractory lined jacket defining an enclosure about a primary combustion chamber having an upper fill opening for introducing waste material into the chamber, grate means sub-dividing the primary combustion chamber into an upper chamber portion above the grate means and a lower chamber portion below said grate means, a first burner assembly communicating with said lower chamber portion for projecting a flame into the latter, and exhaust gas outlet stack extending upwardly from said primary combustion chamber portion in communication with said chamber, a transition chamber interposed in said stack at a location spaced above said primary combustion chamber, said transition chamber including an outer wall and a second burner assembly communicating therewith defining a secondary combustion chamber for subjecting exhaust gases and combustion products discharged from the primary combustion chamber into said stack to after-burning to destroy odors and pathological organisms therein, and said stack having a refractory lined portion spanning the distance between said primary and secondary combustion chambers, a hinged closure for said fill opening, said closure comprising a door having a refractory surface facing inwardly toward the combustion chamber, a counterweight member fastened to said door, a handle including an axially elongated cylindrical rod portion journaled in bracket members fixed to the door for rotation about a horizontal axia and a handle portion extending radially from the cylindrical rod portion, the rod portion having a rod latch formation along the cylindrical rod portion of semi-circular cross-section interrupting the normal circular cross-section of the rod portion, and a stationary latch bracket on the enclosure having a slot sized to accommodate entry and exit of the rod latch formation when the handle occupies a selected angular position and having an enlarged slot portion defining a shoulder formation for receiving and latching the rod portion in door closing position at another angular position of the handle.