Patent ID: 6058857
Filing Date: 2000-05-09
Classification: F23C,F23G

Abstract:
A fluidized bed incinerator construction comprising:an ash discharge outlet (6) formed in a base portion of a furnace main unit (1);a plurality of dispersive air pipes for combustion (11, 31) which project into the furnace main unit (1) from each of laterally spaced apart side walls (1b, 1c) (1c, 1d, 1f, 1g) of the furnace main unit (1), the dispersive air pipes for combustion (11, 31) being cantilevered to each of said side walls and extending inwardly into the furnace main unit (1) in an oblique downward direction and terminating in inner ends at a lower portion of a combustion zone (2b), the dispersive air pipes for combustion (11, 31) projecting from each of said side walls being in spaced parallel relation to one another so that ash can be discharged therebetween;an incombustible material discharge space (12, 32) formed between the ends of the dispersive air pipes for combustion (11, 31) projecting from the respective laterally spaced apart side walls and above the ash discharge outlet (6);the dispersive air pipes for combustion (11, 31) containing a large number of dispersive air holes (13) through which dispersive air is emitted, formed in side walls of the pipes (11, 31), and a dispersive air hole 14, through which dispersive air is emitted into the incombustible material discharge space (12, 32), formed at the inner ends of the pipes (11, 31);wherein the ash discharge between the parallel dispersive air pipes for combustion (11, 31) is discharged through a space under the dispersive air pipes for combustion (11, 31) toward the ash discharge outlet (6), and incombustible material on the dispersive air pipes for combustion (11, 31) is discharged through the incombustible material discharge space (12, 32) toward the ash discharge outlet (6).