COMPACT INCINERATOR WITH FLUIDIZED BED THERMAL DECOMPOSITION CHAMBER

摘要

PROBLEM TO BE SOLVED: To simplify a structure in an incinerator, to shorten a running time, to minimize unburned combustibles, and to easily take out ash.;SOLUTION: A residue fluidizing/thermally decomposing chamber is placed at a lowermost portion to thermally decompose the unburned combustibles in combustion residue of incinerated material, and a primary combustion chamber, an incineration material charging portion, a secondary combustion chamber and a chimney pipe are successively stacked toward an upper portion to simplify the structure, to achieve simple gas flow and to collect the combustion residue at one place. A furnace wall has a double wall structure of metallic thin plates, cooling air flows in a space of the double wall, and further a cooling water pipe is mounted therein. The cooling air is supplied into the double wall space of a side face of the residue fluidizing decomposing chamber having an ash taking-out door so that it flows upward while cooling the furnace wall, and reaches an upper end of the secondary combustion chamber while dividing the air into combustion air nozzles properly mounted on the way. Then the cooling air is supplied toward a high-temperature exhaust gas from a number of holes of a peripheral wall to cool the exhaust gas, thus the chimney pipe can be protected.;COPYRIGHT: (C)2007,JPO&INPIT