SCREENING METHOD AND APPARATUS

1500733 Filtering drum HYDROCYCLONICS CORP 17 Jan 1975 [21 Jan 1974] 2164/75 Heading BID A rotating hollow filter drum 80 comprises a surface of parallel profile bars or a helical bar defining slots between adjacent bars or convolutions, over which slurry is passed and dewatered. Slurry fed by feed...

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Bibliographische Detailangaben
Hauptverfasser:	WELLES, JR., DONALD P
Format:	Patent
Sprache:	eng
Schlagworte:	OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATING SOLIDS FROM SOLIDS SEPARATION SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS SORTING TRANSPORTING
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Beschreibung
Zusammenfassung:	1500733 Filtering drum HYDROCYCLONICS CORP 17 Jan 1975 [21 Jan 1974] 2164/75 Heading BID A rotating hollow filter drum 80 comprises a surface of parallel profile bars or a helical bar defining slots between adjacent bars or convolutions, over which slurry is passed and dewatered. Slurry fed by feed pipe 92 to head box 90 is constrained by side plates 97 to feed rotating filter drum 80. Liquid passes between slots and across the drum to wash through lower portion of drum and rinse off remaining adhering solids. Solids passing over the surface are removed by platform scraper 100. Profile bars (138 Figs. 4 and 5 not shown) are shaped to diverge towards drum axis. The included angle between opposed sides of the bar or bars is preferably between 14 and 90 degrees, for example 26.