Liquid purification or separation – Processes – Separating
Patent
1987-02-06
1988-05-24
Sever, Frank
Liquid purification or separation
Processes
Separating
210804, 210806, 210220, 2102212, B01D 17035
Patent
active
047464445
ABSTRACT:
An apparatus for and method of preventing the build-up of particulate waste, such as machining chips, on the surface of a body of machining coolant having a filtration apparatus immersed therein. Machining chips of light metals, such as aluminum, magnesium, titanium, and the like, generally have a large surface area and, particularly in the presence of tramp oil, tend to accumulate on the surface of a body of coolant. The present invention proposes bubbling air or other suitable gas upwardly through the body of coolant, the air bubbles increasing in volume as they rise through the coolant body and bursting at the surface to wet the machining chips with coolant, so that the chips sink into the body of coolant for removal at the chip-coolant separating means immersed in the body of coolant. The air can be introduced intermittently or continuously through a perforate conduit which, in a preferred embodiment of the invention, is incorporated into the separating means.
REFERENCES:
patent: 4081338 (1978-03-01), Golovoy
patent: 4194972 (1980-03-01), Weintraub et al.
patent: 4366069 (1982-12-01), Dudrey et al.
patent: 4492636 (1985-01-01), Burke
Henry Filters, Inc.
Sever Frank
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