Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1976-04-22
1977-05-17
Sprague, Kenneth W.
Furnaces
With fuel treatment means
Preliminary refuse treatment means
110 8C, 110 10, F23G 512
Patent
active
040235084
ABSTRACT:
Apparatus for burning waste polymers of selected combustion characteristics. A vertical or horizontal combustion assembly includes a base cylindrical portion having water-cooled walls to maintain a selected temperature by removal of the heat of combustion, a plurality of pipes for injecting combustion air tangentially into the interior space, a loading port in the wall of the base section and a burner for igniting the waste matter injected through the loading port. Downstream of the base section is a ceramic choke which has an axial opening therethrough of lesser diameter than an internal diameter of the base section followed by an afterburning chamber, which like the base section, has a plurality of air inlet pipes tangential to the chamber and a burner port for igniting vapors in the upper chamber. Combustion air is controlled so that less than stoichiometric air is injected into the lower chamber to provide a reducing atmosphere, with excess combustion air in the afterburning section. The outlet of the afterburning chamber goes to the stack.
REFERENCES:
patent: 3041986 (1962-07-01), Reilly
patent: 3417717 (1968-12-01), Jacoborici
patent: 3490395 (1970-01-01), Boyd et al.
patent: 3651771 (1972-03-01), Eberle
patent: 3716339 (1973-02-01), Shigaki et al.
patent: 3841239 (1974-10-01), Nakamura et al.
Cantrell, Jr. Clifford J.
Hanlon Gary D.
John Zink Company
Sprague Kenneth W.
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