Patent ID: 8151702
Filing Date: 2012-04-10
Classification: B01D,B30B,C02F

Abstract:
1. A device for dehumidifying and compacting solids contained in sewage for disposal, of a type to be applied to machinery ( 1 ), which machinery ( 1 ) comprises: a tubular screen ( 2 ) having at least an inlet ( 4 ) for a product to be separated and at least an outlet ( 5 ) for a separated solid part thereof, a liquid part thereof exiting from at least a filtering wall ( 3 ) of the screen ( 2 ); a transport organ ( 7 ) predisposed internally of the screen ( 2 ) for transporting the solid part to be compacted towards the outlet ( 5 ); wherein the device for dehumidifying comprises a contrast element ( 9 ), predisposed at the outlet ( 5 ) for interacting contactingly with the product, which contrast element ( 9 ), in a rest position thereof, occupies at least a part of a mouth of the outlet ( 5 ) and which contrast element ( 9 ), under an effect of a pushing force of the product to be compacted, can elastically deform in order to increase a size of a free mouth of the outlet, the contrast element comprising a flat surface, solidly connected to the machinery ( 1 ) at a position in which the flat surface occupies at least a part of the outlet mouth of the outlet ( 5 ), constituted by elements ( 11 a, b ) which develop from a periphery of the outlet mouth of the outlet ( 5 ) towards a centre of the outlet mouth, wherein the flat surface comprises main elements ( 11 a ) having a predetermined degree of elasticity, alternated with intermediate elements ( 11 b ), having a degree of elasticity which is different to the degree of elasticity of the main elements ( 11 a ).