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US 10,376,832 B2Granted
Filtering device for dust and other pollutants
AssigneeRocco Rizzo
InventorAngelo Di Noi
Life of this patent
Estimating the term…
Abstract
The present invention relates to the filtering of fumes emitted by industrial processes such as those used in iron and steel works, refineries, waste-to-energy plants and the like and in particular relates to a filtering device for fine and ultrafine dust particles and other polluting agents.
Claims11
A device for filtering dust particles or other polluting agents in an air flow, said device comprising
- a spiral duct which extends in the form of superimposed volutes around a vertical generatrix (X),
- said duct extending between an inlet mouth and an outlet mouth for said air flow,
- wherein each volute of said duct has a cross-section with a dimension (y), measured along an axis (Y) perpendicular to said generatrix (X), that is at least five times greater than a dimension (x), measured with respect to said generatrix (X), so as to obtain in zones of said duct a vacuum effect to separate and remove the dust particles or other polluting agents from said air flow and convey the finer dust particles in the direction of the generatrix (X).
Dependencies are inferred from the claim text.