Filter and hydraulic mixing assembly for water treatment

Details Filter and hydraulic mixing assembly for water treatment Filter and hydraulic mixing assembly for water treatment

C - Chemistry, Metallurgy

02

F

C02F 1/42 (2006.01) B01D 24/14 (2006.01)

Patent

CA 2223121

A filter and hydraulic mixing assembly for a water treatment system. The assembly includes two circulation tubes disposed alongside a center tube. During a backwash cycle fluid is conveyed through the center tube to a housing member where it is discharged immediately below the open bottom ends of the two circulation tubes thereby conveying media from the surrounding tank upwards through the circulation tubes. A cap member is fitted over the upper ends of the circulation tubes within the tank and direct the media being discharged from the circulation tubes into a downward spiraling helical flow pattern which provides enhanced agitation and lifting of the media bed. Discrete filter segments are selectively attachable to the housing member and interchanging the discrete filter segments permits the total filter slot area of the assembly to be adjusted and also permits the filter slot size to be altered. The filter segments are color coded, with each separate filter size having a different corresponding color. The color coding scheme provides an efficient and effectivemechanism for preventing the inadvertent mixing of filter segments having different slot sizes.

Filtre et ensemble de brassage hydraulique d'un système de traitement des eaux. Cet ensemble présente deux tubes de circulation le long d'un tube central. Au cours d'un cycle de détassage, le liquide est acheminé par le tube central jusqu'à un logement où il se décharge directement sous les extrémités ouvertes inférieures de deux tubes de circulation, ce qui fait remonter le produit du réservoir environnant dans les tubes de circulation. Un couvercle est ajusté aux extrémités supérieures des tubes de circulation situés dans le réservoir et sert à diriger le produit évacué des tubes de circulation en créant un écoulement tourbillonnaire en spirale qui soulève et agite plus efficacement le lit de la couche de filtration. Des sections distinctes de filtre peuvent être attachées sélectivement au logement et, en les interchangeant, on est en mesure d'adapter l'importance de la superficie totale de la section filtrante à l'ensemble et de modifier l'importance des ouvertures de filtrage. Ces sections filtrantes présentent un codage couleur permettant de différencier chaque taille de filtre. Ce codage couleur fournit un moyen sûr et efficace de prévenir le mélange par inadvertance de sections filtrantes d'ouverture différente.

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