Furnaces – Refuse incinerator – Refuse suspended in or supported by a fluid medium
Patent
1980-12-05
1983-05-10
Yuen, Henry C.
Furnaces
Refuse incinerator
Refuse suspended in or supported by a fluid medium
432 58, 34 57A, 34 57B, F23G 500, F23D 1900
Patent
active
043824153
ABSTRACT:
A plate grid, and a fluidized bed reactor incorporating the plate grid, are disclosed. The plate grid includes air distribution apertures for delivering pressurized air to the reactor, and conduits for removing refuse, such as tramp material and/or agglomerated material, from the fluidized bed. The conduits include downwardly diverging walls extending from the lower face of the plate grid support surface. The fluidized bed reactor incorporating the plate grid further includes a chamber located below the plate grid support surface in communication at its upper end with both the air distribution apertures and conduits and at its lower end with a discharge port. The method of operating the fluidized bed reactor includes filling the reactor, and consequently the chamber and conduits, with granular material to form a space between the top surface of the granular material in the chamber and the lower face of the support surface. Pressurized gas is then introduced into this space and is discharged upwardly through the air distribution apertures. As refuse falls through the conduits, refuse and/or granular material is discharged through the discharge port at a rate to maintain the bed of granular material at a desired level.
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York-Shipley, Inc.
Yuen Henry C.
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