Furnaces – Refuse incinerator – Refuse suspended in or supported by a fluid medium
Patent
1976-08-11
1978-10-10
Sprague, Kenneth W.
Furnaces
Refuse incinerator
Refuse suspended in or supported by a fluid medium
110297, 110119, F23G 512
Patent
active
041190467
ABSTRACT:
An improved waste material incineration system and method of combustion where waste material is initially inserted through gravity assist into the combustion zone of a horizontally directed furnace. The waste material is impinged by the flame front of a burner and is cyclically vortexed in a vortexing zone of the combustion chamber through a combination of air inlet conduits impinging on the combusting waste material and the particular contouring of the furnace internal geometry. The waste material is initially densified in one section of the vortexing zone and then expanded in a second section of the vortexing zone while being impinged by inlet air to provide a guide to maintain the vortexing contour of the combusting waste material. During the expansion of the waste material in the second section of the vortexing zone, the substantially combusted waste material products are released into a heat release zone of the furnace while the non-combusted or partially combusted waste material is recirculated in the vortexing contour. The waste material is generally maintained within the vortexing zone of the combustion zone of the furnace until it is substantially combusted whereupon it is released during the expansion portion of the vortexing contour.
REFERENCES:
patent: 3685467 (1972-08-01), Morrill
patent: 3745940 (1973-07-01), Hibbett
patent: 3771469 (1973-11-01), Ali et al.
patent: 3785302 (1974-01-01), Davis
patent: 3791318 (1974-02-01), Oseroff et al.
patent: 3808986 (1974-05-01), Logdon
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