Waste material converter using rotary drum
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United States of America Patent
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Nov 10, 2015
Grant Date -
Oct 3, 2013
app pub date -
Mar 14, 2013
filing date -
Apr 2, 2012
priority date (Note) -
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Abstract
An apparatus for controlled pyrolysis of waste material includes an elongate, perforated rotary drum lined with refractory material, having a longitudinal axis of rotation, and forming a chamber to receive and decompose the waste material. The drum includes a cylindrical metal exterior which has numerous apertures distributed over its cylindrical surface provided for passage of a limited amount of process air into the chamber. A mechanism is provided for supporting the drum for rotation about the longitudinal axis. An external shell encloses the rotary drum and prevents external ambient air from flowing through the apertures and into the chamber. Air distribution housings are distributed along the length of the rotary drum and form air distribution chambers each of which is enclosed except on an inner side of the chamber. This inner side is open for delivery of process air through a selected portion of apertures in the metal exterior.
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