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Subject: Coolant recovery

Date: 06/02/02 at 1:32 AM
Posted by: Ilmar Luik
E-mail: itallcorp@aol.com
Message Posted:

We are moving into a new location where we can no longer dump used coolant into weeds. Thus a central coolant recovery system, for our 5 CNC machines, becomes important.

Would it be possible build a central coolant recovery system using a wet shop vacuum cleaner, few 50 gal. drums, left over coolant pumps and PVC pipes. Wet vacuum cleaner pulls used coolant from sumps to the central location where it goes through setlling tanks and disposable bag filters into clean coolant tank where it is monitored for Ph and concentration and then through pressurized plumbing system to solenoid valves (connected to pump ON-OFF line at each CNC) and from the valve to the CNC coolant nozzels.

For refinments we would direct used coolant discharge from each CNC into a bucket with easy to lift out screen bucket (from Walmart) and possible piece of cheese cloth and on bottom of the bucket is drain pipe which goes to the central shop wet vacuum cleaner. The opening on bottom of the bucket is cloced by a flapper valve and pulled shut by the vacuum until the coolant level, in the bucket lifts, up a float, and opens the flapper valve.

Obviously, systems of that type can be purchased, but is it possible that a cheap home made system is equally good.

Ilmar Luik 256-828-1221


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