Furnaces – With control means responsive to a sensed condition – Feed control
Patent
1984-02-27
1985-01-29
Favors, Edward G.
Furnaces
With control means responsive to a sensed condition
Feed control
110188, 110257, 110346, 236 15BB, 236 15E, F23N 502
Patent
active
044958722
ABSTRACT:
In a low NO.sub.x emission incinerator a refuse supply stoker (1), a dry-ignition stoker (2), a gas generation stoker (3), and a complete combustion stoker (4) are positioned in descending stair-step fashion beneath a combustion chamber (A). In the dry ignition stoker (2) and the gas generation stoker (3) refuse is thermally decomposed under an amount of air which is less than the amount of air theoretically required for complete combustion, so that reducing gases such as CO, NH.sub.3, and the like are generated. At the complete combustion stoker (4) the residuum of the refuse is completely combusted under an amount of air greater than the required theoretical amount. Air is supplied through nozzles (7,8,9) at successive points above the flow route of combustion gas inside the combustion chamber (A) so that the temperature in the combustion chamber (A) is maintained in a range to reduce the amount of NO.sub.x generated by the combustion of gases.
REFERENCES:
patent: 3812794 (1974-05-01), Taylor
patent: 4182246 (1980-01-01), Lombana et al.
patent: 4385567 (1983-05-01), Voss
Favors Edward G.
Kabushiki Kaisha Takuma
Warner Steven E.
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