Continuous self-cleaning filtration unit
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United States of America Patent
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Dec 10, 1996
Grant Date -
N/A
app pub date -
Dec 13, 1994
filing date -
Dec 13, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved vertical filtration unit includes a bell-shaped lower end for the air-lift tube, an injection ring for introducing air into the air-lift tube at a considerable volume, and a washbox with a more efficient scrubbing arrangement for washing dirt particles from the filtration material. The bell-shaped lower end makes the transporting of a mixture of dirty filtration material and water to the top of the filtration unit more efficient than with the conventional straight tube bottom. The tube receives compressed air from two horizontally positioned inlets positioned 180.degree. from each other. The flat and round target plate makes the scrubbing of filtration material more efficient, while a baffle prevents the filtration material from being ejected from the washbox.
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