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AssigneeDUOS Engineering (USA), Inc.
InventorsGianni B. Arcaini, Larry Strach, Nicholas Bruno
Estimating the term…
An enclosed drainage facility to dry municipal waste combustion ash has a plurality of spaced elongated channels to drain by gravity, water from piles of ash into a disposal or reclamation pool. The channels are sloping concrete ditches leading to a common trough or pipe to a covered storage basin. Steel plates pierced with a plurality of spaced slender slits abut each other to cover each channel. The atmosphere in the facility is changed by being pumped into one side of the facility and exhausted adjacent an opposite side. Also, a process for drying municipal waste combustion ash includes dewatering and drying of ash piles in an atmosphere of warm dry air for a period of time necessary to reduce the moisture to about 28%.
An enclosed drainage facility for drying municipal waste combustion ash having a high moisture content and recovering that waste combustion ash with a low moisture content, said drainage facility comprising a floor, a roof and a plurality of walls forming an enclosed space, a plurality of spaced parallel drainage channels beneath said floor, a plurality of elongated perforated covers closing said channels and forming a part of said floor upon which is deposited piles of waste combustion ash to be dried, each said channel sloping toward a common collection trough that drains into a covered storage basin, said floor and channels being constructed of concrete and adapted and arranged to direct drainage water from piles of combustion ash through said perforated covers into said channels and said trough to said basin.
A process for dewatering municipal waste combustion ash having a high moisture content which comprises piling municipal waste combustion ash having a moisture content of at least 35% within an enclosed facility having a floor with a plurality of spaced concrete underground drainage channels with porous metal plates covering the channels and a part of the floor and allowing water to drain from the combustion ash piles through the plates and the channels and be collected, dehumidifying the atmosphere within the facility to hasten the dewatering, and recovering ash with a moisture content of not more than 28% within about two weeks time.
Dependencies are inferred from the claim text.