Concentrating evaporators – Processes – Involving waste liquid
Patent
1974-03-25
1976-12-14
Sofer, Jack
Concentrating evaporators
Processes
Involving waste liquid
159 1RW, 159 1A, 159DIG26, 159 49, 34 4, B01D 100
Patent
active
039973883
ABSTRACT:
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.
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Drucker William Anthony
Sofer Jack
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