Dry ash handling system for an incinerator
AssigneeWestinghouse Electric Corp.
InventorAbner B. Turner
Life of this patent
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Abstract
The invention is a dry ash handling system that allows ash to fall into a refractory lined ash car riding on rails in a sealed tunnel. The ash falls through a chute coupled to a negative pressure rotary combustor. Any unburned waste is allowed to continue burning in a burn-out chamber while, after removal from the chute because air is allowed to be pulled through the ash from the bottom by the negative pressure. When burn-out is complete, the ash is sprayed to quench any remaining smoldering embers. After removal from the tunnel, the car is sealed with a lid and allowed to cool further. During this period, samples can be removed from the car through sample ports. The car is transported to a landfill by a tilt bed truck and a hinged door on the car allows the ash to be dumped.
Claims12
An ash handling system, comprising:
- an ash gate controlling ash movement direction;
- first and second ash chutes coupled to said gate, one of said chutes at a time receiving ash from said gate;
- first and second vehicle tunnels coupled to said first and second ash chutes respectively and adapted to receive and discharge vehicles, each tunnel including an entrance chamber with a sealable entrance door, an ash collection chamber with a chute seal, a burn-out chamber with a sealable exit door having an air inlet, and a track traveling therethrough;
- an ash car having wheels rolling on the track and rollable on a flat surface, mating with the chute seal when in the ash collection chamber, having an air infusion pipe mating with the air inlet when in the burn-out chamber, having a lid clamped to said car after exiting the burn-out chamber and having a sealable dump door;
- means for taking the lid off and putting the lid on said car;
- and
- means for carrying said car to an ash disposal site and dumping the ash through the dump door.
An ash handling system, comprising:
- a sealable vehicle chamber openable at two ends and including a burn-out chamber with an air opening;
- an ash chute entering said vehicle chamber and having a negative air pressure;
- and
- an ash car positionable under the ash chute in said vehicle chamber, receiving ash from said chute and having an air entrance tube abutting the air opening when in said burnout chamber, no ash being deposited in said car when in said burn-out chamber and the tube having air slots allowing air to move through the ash into said chute while said car is in said burn-out chamber.
A system as recited in claim 9, wherein said car includes a lid attached to said car, when said car is removed from said chamber, preventing ash form escaping from said car.
Dependencies are inferred from the claim text.