Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1976-02-27
1977-07-26
Sprague, Kenneth W.
Furnaces
With fuel treatment means
Preliminary refuse treatment means
202131, F23G 506, C10B 110
Patent
active
040375439
ABSTRACT:
A combination carbonization apparatus and furnace for alternatively reducing cellulosic waste such as wood chips and the like to charcoal, or burning said waste completely to produce furnace heat and ash, from which potash may be produced, as desired, the desired operation being provided simply by regulating the amount of combustion air admitted to the reaction chamber of the device, either insufficient air to produce full combustion of the waste if charcoal is desired, or an excess of air if the production of ash is desired. An afterburner receiving the gaseous products of the reaction chamber is provided with an excess air supply to provide full combustion of the gaseous products in either case, whereby the effluent gases of the device may be pollution-free. Special means are also provided for cooling the reaction chamber and afterburner exteriorly, whereby to increase the efficiency of the reactions occurring therein by permitting higher reaction temperatures therein, and to protect the structural integrity of the device, and for more fully and efficiently utilizing heat produced in the reaction chamber and afterburner as useful heat for external purposes.
REFERENCES:
patent: 3405667 (1968-10-01), Becker et al.
patent: 3794565 (1974-02-01), Bielski et al.
patent: 3822651 (1974-07-01), Harris et al.
patent: 3838015 (1974-09-01), Buchbinder et al.
patent: 3842762 (1974-10-01), Sargent et al.
Hamilton John A.
Sprague Kenneth W.
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