Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With rehabilitation means
Patent
1992-05-13
1994-03-08
Cintins, Ivars
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
With rehabilitation means
210290, B01D 2446
Patent
active
052924360
ABSTRACT:
A filter apparatus for filtering fluids such as gases or liquids includes a casing defining an inlet and an outlet, and having a peripheral wall extending between the inlet and outlet. The peripheral wall defines a chamber having a longitudinal axis and a cross-sectional area, when viewed in the direction of the longitudinal axis, which increases between the inlet and the outlet. A bed of particulate filtering media is disposed within the chamber, the media ranging in size between relatively large particles disposed adjacent the inlet and smaller particles disposed closer to the outlet. Preferably, the size of the particles is chosen based upon the relationship between the lifting force exerted on the particles by a fluid flowing upward through the chamber and the weight of the particles. As the lifting force exerted on the particles varies, due to varying velocity of the fluid passing upward through the chamber, the size of the particles is also varied at a corresponding rate so that all particles are effected equally by the lifting force of the fluid and mixing of the particles is inhibited.
REFERENCES:
patent: 17987 (1857-08-01), Thompson
patent: 293745 (1884-02-01), Hyatt
patent: 331790 (1885-12-01), Hood
patent: 1759013 (1930-05-01), Lancaster
patent: 3471025 (1969-10-01), Dobson
Cintins Ivars
Kansas State University Research Foundation
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