Furnaces – Refuse incinerator – With air preheater
Patent
1990-11-02
1991-10-08
Favors, Edward G.
Furnaces
Refuse incinerator
With air preheater
110165R, 110165A, 110235, 110259, 110302, 110346, 431167, F23G 500, F23G 512
Patent
active
050544055
ABSTRACT:
Waste materials are efficiently and completely incinerated in a gasification unit with a minimum amount of fly ash while ensuring complete sterilization of residual materials. The gasification unit includes a refractory liner which is stepped to define primary, secondary, and tertiary combustion chambers where waste materials are completely incinerated. A fan is adapted to draw combustion air past the outer surface of the refractory liner to initially heat the combustion air while simultaneously cooling the refractory liner. The fan is further adapted to force combustion air under pressure into a preheating chamber in which the combustion air is preheated before passing into the primary and secondary combustion chambers. Turbulence in the combustion chambers, brought about through equalization of air pressure in the preheating chamber, is effected through the provision of tangential air inlets in the walls of the refractory liner. A sloped floor of the refractory liner cooperates with an ash removal device and a secondary burner to ensure complete combustion of the waste materials and sterilization of residual ashes within the gasification unit.
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Favors Edward G.
Serawaste Systems Corporation
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