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US 3,997,388 AGranted
Dehydration of manure
OwnerVictor Simoninventor
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OwnerVictor Simoninventor
Estimating the term…
A method and apparatus for the dehydration of cattle and horse manure, cow dung or pig droppings, characterized by the action of a flow of hot air and of ultrasonic radiation along the path of the matter to be dehydrated, and that of microwave radiation at a preferred frequency of 2450 MHz which produces internal heating, these actions taking place separately or in conjunction. Manure from which gas has previously been removed by aspiration at temperature lower than that of self-ignition, is utilized. Combustible gases are recovered and used preferably to the heating of the air. Two types of apparatus are envisaged, one incorporating a conveyor belt and the other a helical worm provided with a plurality of perforations for the hot air to pass through. The ultrasonic radiation accelerates evaporation and discourages matter from adhering to the surfaces.
A method of dehydrating animal ordure, wherein said ordure comprises combustible fermentation gases, the said method comprising the successive steps of removing the said gases from the animal ordure and of causing the ordure to move along a path, while subjecting the ordure to the simultaneous action of hot air flowing in the opposite direction to the movement of the ordure and of ultrasonic vibrations.
A method of dehydrating animal ordure, wherein said ordure comprises combustible fermentation gases, the said method comprising the successive steps of removing the said gases from the animal ordure and of causing the ordure to move along a path, while subjecting the ordure to the simultaneous action of hot air flowing in the opposite direction to the movement of the ordure and of ultrasonic vibrations and microwave radiations.
Dependencies are inferred from the claim text.