Liquid purification or separation – Tangential flow or centrifugal fluid action
Patent
1995-03-07
1997-06-03
Reifsnyder, David A.
Liquid purification or separation
Tangential flow or centrifugal fluid action
210787, 209715, 209721, 209725, 209733, 554591, B01D 2126
Patent
active
056350686
ABSTRACT:
A combination centrifugal separator for air and solids has a cylindrical vessel with cylindrical side wall and closing end walls, a vortex finder internally and coaxially disposed within the vessel, an inlet mounted on the vessel in a direction tangential to the periphery of the cylindrical side wall, primary and secondary spin plates coaxially disposed within the vessel, a plurality of vane-shaped ribs connecting the primary and secondary spin plates to the vessel, and a plurality of chambers, i.e., an air collection chamber, a spin chamber and a solids accumulation chamber internally disposed within the vessel. The secondary spin plate preferably is perforated. In operation, contaminated and aerated water enters the vessel and due to the cylindrical wall and gravity, spirals downwardly, until reaching the primary spin plate, whereupon clean water and lighter constituents reverse direction and exit the vessel through the vortex finder. Heavier constituents, however, are centrifugally urged out of the downwardly spiraling flow and, thus, gravitationally descend downwardly in the vessel to the solids accumulation chamber, wherein the heavy constituents are periodically purged through a purge outlet by opening a valve. Air bubbles, on the other hand, tend to rotate and ascend upwardly into the air collection chamber, wherein they can be vented through an air vent by opening up a valve.
REFERENCES:
patent: 4305825 (1981-12-01), Laval, Jr.
patent: 5368735 (1994-11-01), Ford
patent: 5451318 (1995-09-01), Moorehead
Griswold Controls
Reifsnyder David A.
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