A DEVICE FOR SEPARATING AIRBORNE PARTICLES IN DEPENDENCE ON GRAIN SIZE

A device is described for separating airborne particles into classes depending on grain size. The principle characteristic of the present invention lies in the fact that it comprises: a hollow base body, in which, in use, a depression is created; an upper body in which is formed a channel to which t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PRODI, VITTORIO
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS PHYSICS SEPARATING SOLIDS FROM SOLIDS SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A device is described for separating airborne particles into classes depending on grain size. The principle characteristic of the present invention lies in the fact that it comprises: a hollow base body, in which, in use, a depression is created; an upper body in which is formed a channel to which there is conveyed, in use, the particle-bearing air and which has a lower extremity with a circular outline; a mesh positioned between the said base body and the said upper body and on which is positioned a filter defining, with the lower face of the said upper body, a cavity; and a nozzle housed in the said channel and operable to eject filtered air in proximity to the said lower end of this latter in such a way that the particles flowing through the said lower end are separated into various bands according to their aerodynamic diameter and are deposited on the said filter.