Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1997-03-31
1998-06-30
Silverman, Stanley S.
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
210136, 210525, 210803, B01D 2104
Patent
active
057728852
ABSTRACT:
A sludge removal suction header is provided having an obtuse angled header shape and a much larger header cross section width dimension than presently utilized in the existing art. A longer width to height above ground ratio is produced which invokes ground effects. Internal annular passages are provided for equalizing the pressure distribution inside the header, thereby improving flow distribution across all holes, and especially those holes at the end of the header which are furthest away from the vacuum/suction source. An optimized number and diameter size of suction holes is further provided, as well as flow splitters, located beneath the header. Also, an air removal system is provided and placed for allowing vacuum to be provided by a controlled volume suction system, such as by a positive displacement pump, and in a manner that the positive displacement pump is allowed to maintain its prime, and air infiltration caused by startups is automatically removed, thereby reducing flow resistance inside the piping and providing more suction capability to the header.
REFERENCES:
patent: 3669271 (1972-06-01), McGivern
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patent: 4401576 (1983-08-01), Meurer
patent: 4857185 (1989-08-01), Desjardins
patent: 5047150 (1991-09-01), Mitchell
patent: 5078869 (1992-01-01), DiGregorio et al.
patent: 5340485 (1994-08-01), Bradley et al.
Gugliotta John D.
Morrison Betsey J.
Silverman Stanley S.
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