Method for filtering contaminated liquids

Details Method for filtering contaminated liquids Method for filtering contaminated liquids

1986-11-19

1987-12-29

Sever, Frank

Liquid purification or separation

Processes

Separating

210806, 210251, 210297, 210387, B01D 2704, B01D 3304

Patent

active

047159642

ABSTRACT:
A method of filtering coolant for a central coolant system supplying clean coolant to a plurality of machining stations. The method simultaneously filters the coolant in a single tank through both a perforate drum filter and a paper filter to obtain clean coolant of two distinct clarity levels. The coolant of enhanced clarity resulting from the operation of the paper filter either can be supplied to a machine requiring such coolant clarity (e.g., a gun drill) or can be used as a "polishing filter" to remove fines from the coolant in the central system.

REFERENCES:
patent: Re32135 (1986-05-01), Creps et al.
patent: 4440642 (1984-04-01), Frese et al.

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