Vorrichtung zur dynamischen Filtration von Fluid-Feststoff-Gemischen und Verfahren zum Betreiben einer derartigen Vorrichtung

Filtermodul zur Cross-flow-Filtration, mit einem allgemein rohrfoermigen Filterelement, in den das aufzubereitende Feststoff/Fluid-Gemisch in eine rotierende Bewegung, die sich der axialen Fortbewegung in der Filterkammer ueberlagert, versetzt wird und durch ein axial angeordnetes Tauchrohr der Filterkammer entstroemt. Das Volumenverhaeltnis Filtrat/entstroemendes Gemisch kann 9 : 1 betragen. Das Modul eignet sich insbesondere zur Wasseraufbereitung.

DE 19914674 C UPAB: 20010118 NOVELTY - A first outlet (12,22,32,42,52,62) for the upgraded mixture forms the opening of submerged pipe (15,25,35,45,55,65) of which the opening is connected to the first section co-axially to the chamber axis. DETAILED DESCRIPTION - The apparatus comprises a filter chamber (10,20,30,40,50,60) which has a rotating symmetrical portion about the chamber axis; a filter element (11,21,31,41,51,61) which is arranged within the rotating symmetrical portion of the filter chamber (10,20,30,40,50,60) and the filter chamber (10,20,30,40,50,60) separates into an outer chamber (18,48,68) and an inner filter chamber (17); an inlet in the chamber (18,48,68) for the non-filtered mixture and at least one outlet from the chamber (18,48,68) for the upgraded solid mixture which are arranged so that the mixture defines an axial motion direction of mixture-stream to-be-separated along the chamber axis. The rotation device (63, guide plate 23, inlet pipe 13,33,43,53) are present in order to provide a rotation component flow of to-be-separated mixture stream from the inlet to the outlet about the chamber axis. An INDEPENDENT CLAIM is included for a process of using the above apparatus in dynamic filtration. USE - Used for dynamic filtration of fluid-solid mixtures and particularly suited for particle filtration, microfiltration, ultrafiltration, nanofiltration as well as purifying of suspensions, solutions and gases.