Rotating fluidized bed combustor

Details Rotating fluidized bed combustor Rotating fluidized bed combustor

1975-12-24

1978-01-03

Sprague, Kenneth W.

Furnaces

With fuel treatment means

Preliminary refuse treatment means

110 10, 110 14, 201 12, F23G 506, F23D 1902

Patent

active

040660249

ABSTRACT:
A heated fluidized bed is formed by rotating a body of sand in a horizontal cylindrical drum, lifting and dropping sand from the bed through the open portion of the drum, and heating the region through which the sand drops. The drum is formed by a cylindrical water wall of pipes connected to a water source and a steam outlet, and annular end plates hold the sand bed and define inlet and outlet openings in the drum. Waste material is simply dumped through the inlet opening and ash is automatically discharged through the outlet opening. The sand is preferably lifted by small cross section, scoop-like baffles so that the coolest sand from the bottom of the bed is heated, and waste particles are not removed from the bed. If desired, auxiliary air can be introduced into the sand bed through a manifold-pipe arrangement.

REFERENCES:
patent: 1573824 (1926-02-01), Griffiths
patent: 2104040 (1938-01-01), Hurt
patent: 2175300 (1939-10-01), Moreton
patent: 3616266 (1971-10-01), Hall et al.
patent: 3822651 (1974-07-01), Harris et al.
patent: 3838015 (1974-09-01), Buchbinder et al.
patent: 3882801 (1975-05-01), Bolle

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