Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1981-05-13
1982-07-20
Yuen, Henry C.
Furnaces
With fuel treatment means
Preliminary refuse treatment means
432115, 432103, 110246, F23G 506
Patent
active
043399991
ABSTRACT:
An improved method and apparatus for pyrolyzing waste materials and recovering useful chemical and energy rich materials therefrom. The apparatus of the invention comprises a specially designed, rotatable pyrolysis chamber and a cooperating rotatable moisture reduction chamber which pretreats the refuse prior to its introduction into the pyrolysis chamber. The pyrolysis chamber and the moisture reduction chamber are uniquely interconnected so that a portion of the heat of combustion of the refuse is taken from the pyrolysis chamber and controllably introduced into the moisture reduction chamber to reduce the moisture content of the refuse which is continuously received therein. The outlet of the moisture reduction chamber is interconnected with the inlet of the pyrolysis chamber so that, in operation, the refuse received into the pyrolysis chamber is controllably pre-dried prior to pyrolysis. When the apparatus is at operating temperature, a portion of the combustible gases generated by the pyrolysis of the refuse is continuously mixed with air and the combustible gaseous mixture thus formed is used to sustain pyrolysis within the pyrolysis chamber.
REFERENCES:
patent: 1459302 (1923-06-01), Hermann
patent: 1491894 (1924-04-01), Atkinson
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patent: 2151320 (1939-03-01), Forni
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patent: 3751199 (1973-08-01), Toft
patent: 3836324 (1974-09-01), Shaefer et al.
Fio Rito William M.
Kidd Ralph E.
Brunton James E.
Yuen Henry C.
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