Incinerator

Details Incinerator Incinerator

1994-04-11

1995-05-16

Yuen, Harry C.

Furnaces

Refuse incinerator

Rotary drum

110204, 110255, 432106, 432105, F23G 506

Patent

active

054151120

ABSTRACT:
An incinerator is described which includes a cylindrical rotary furnace slightly inclined downwardly in its longitudinal direction for combusting material introduced into an entrance, a cylindrical housing for housing the furnace and a secondary combustor connected with an exit of the furnace. Partition plates are placed in an annular space between the housing and the furnace for defining a combustion air introduction zone below the furnace and recirculated gas introduction zone above the combustion air introduction zone. A gas recirculation duct extends from the secondary combustor to the furnace housing for introducing a portion of the gas flow discharged from the secondary combustor into the recirculated gas introduction zone. An external air flow is introduced to the combustion air introduction zone. The recirculated gas lowers the,temperature of the furnace and this results in reduced NOx generation. Further, since the combustion air flow enters the furnace from the bottom side of the furnace, it is effectively used in incineration.

REFERENCES:
patent: 4961391 (1990-10-01), Mak et al.
patent: 5020455 (1991-06-01), Takashi et al.
patent: 5042402 (1991-08-01), Freeman
patent: 5081937 (1992-01-01), Ishida
patent: 5174750 (1992-12-01), Flading et al.
patent: 5273355 (1993-12-01), May et al.

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