Patent ID: 7097766
Filing Date: 2006-08-29
Classification: B01D

Abstract:
1. A fluid filtration system comprising: a. a vessel having a cylindrical side wall, and upper and lower end walls forming an interior chamber; b. filtration media disposed in said chamber such that there is an open space at the top thereof; c. an inlet in said upper end wall in fluid communication with a plurality of openings for introducing fluid under pressure into the open space of the chamber at an angle that is tangential to said cylindrical side wall and downwardly angled to induce a helical flow; d. a plurality of pivotally attached radially spaced apart axially-extending blades positioned in the open space below said openings such that the fluid flowing into the chamber from said openings comes into contact with said blades; e. at least one downwardly extending tine attached to each of said blades, said tine extending from said blade into an upper portion of said filtration media; and f. at least one outlet at the lower end of said chamber in communication with the exterior of said vessel, said outlet including a filtration screen.