Furnaces – Refuse incinerator – Rotary grate movable about a vertical axis
Patent
1987-05-04
1988-09-13
Yuen, Henry C.
Furnaces
Refuse incinerator
Rotary grate movable about a vertical axis
110346, 110250, 110348, F23G 704
Patent
active
047701099
ABSTRACT:
An improved plasma torch incinerator or reactor in which the incinerator uses a rotating, materials-receiving drum or chamber for receiving the hot plasma of a plasma torch. By properly constructing the inner surface of the rotatable drum and by varying the speed of rotation of the drum, waste materials can be effectively spread out over the inner surface of the drum to form a relatively thin layer of waste materials which has a large surface area which can be more quickly heated to the desired high temperatures provided by the plasma torch. Moreover, the spreading out of the waste materials can cause them to be recirculated and mixed by periodically reducing the speed of rotation of the drum. The plasma of the plasma torch is not directed toward a stationary part of the drum. Instead, the plasma torch is directed at a rotatable portion of the drum which provides for a better heat distribution and permits portions of the drum to cool during the intervals when they are not in direct contact with the plasma. Thus, liquid as well as solid waste materials can be fed together into the rotating drum.
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"Plasma Technology in Metallurgical Processing", pp. 179-184.
Retech, Inc.
Yuen Henry C.
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