Incinerator with a flue gas guiding device and a safety mechanism

Abstract

An incinerator includes a furnace having a cylindrical top section, a cyclone separator connected to an effluent outlet of the top section, a tubular member mounted in the top section and defining a flue gas passage, and a flue gas guiding device mounted in the top section below the tubular member and including a seat body vertically aligned with the tubular member, and a plurality of angularly spaced apart helical blades extending radially from the seat body to an inner wall of the top section so as to provide helical movement to a stream of hot combustion gas passing therethrough and so as to split the stream of the hot combustion gas into a stream of high-density flue gas that exits from the effluent outlet, and a stream of low-density flue gas that flows outwardly through the flue gas passage.

I claim:  
     
         1 . An incinerator comprising: 
 a furnace confining a combustion chamber and having a cylindrical top section that extends in a vertical direction and that has a top open end confining an opening, an effluent outlet disposed below said top open end and extending in a tangential direction relative to said top section, and an inner wall, said effluent outlet having upper and lower ends in the vertical direction;    a cyclone separator connected to said effluent outlet;    a tubular member mounted in said top section, extending outwardly through said opening in the vertical direction, having a bottom end below said lower end of said effluent outlet, and defining a flue gas passage; and    a flue gas guiding device mounted in said top section below said tubular member and including a seat body vertically aligned with said tubular member, and a plurality of angularly spaced apart helical blades extending radially from said seat body to said inner wall of said top section so as to provide helical movement to a stream of hot combustion gas passing therethrough and so as to split the stream of the hot combustion gas into a stream of high-density flue gas that flows in a helical direction around said tubular member and that exits from said effluent outlet, and a stream of low-density flue gas that enters into said tubular member and that flows outwardly through said flue gas passage.