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Lapidary / Gemstone Community Forum
February 22, 2019, 02:25:05 pm
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Reclaiming Cutting Oil~ What Works Best for You?

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Author Topic: Reclaiming Cutting Oil~ What Works Best for You?  (Read 1241 times)
hulagrub
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When you cultivate man, you turn up all the clods


« Reply #15 on: April 15, 2011, 08:25:22 pm »

Remember the scientific experiment we did by hanging a shoe from a can of to the bulb ofa thermometer to get the dew point? Have thought that could work. Used to be able to buy reclaimed motor oil from a system like that.
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Rocksnot
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« Reply #16 on: April 18, 2011, 11:09:05 am »

As requested  video!

The secret of how the simple centrifuge works - pretty good demo of how it works


Simple centrifuge cleaning waste oil - showing gakey oil being filtered


Self Cleaning Centrifuge  (ready made in Australia if ya have money lol)
(this video is kind a loud :/ )


I have seen some industrial centrifuges do 1000 gal per hour but that would be a bit large (and pricey) for most of our needs
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deb193
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« Reply #17 on: April 18, 2011, 01:57:16 pm »

This might work for the light cloud of rock particles that get through the paper bag, but the thickness of the rock sludge that enters the bag originally would be incompatible with features like the draining that happens when the unit is turned off. Although if the sludge largely filled the drum, then there would not be much unclean oil to drain.

the design also seems to favor continuous cleaning instead of a batch of rock oil pudding.

I think the idea of gravity instead of vacuum is interesting. I wonder about spinning the paper bag to dramatically shorten the time it takes to filter the oil?
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Rocksnot
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« Reply #18 on: April 18, 2011, 02:59:31 pm »

@deb - "batch of rock oil pudding"  *belly laugh*  kind of like desert after having some rock snot soup? :D

From the discussions I did not think any self draining feature would be very workable, unless the oil was being constantly cycled through to keep it from becoming 'pudding'.

But the one video of the Australian made machine was pumping out the 'waste' product like cookie dough, but that machine probably costs more than the saw?!
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MrsWTownsend
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« Reply #19 on: April 18, 2011, 06:01:31 pm »

Wow that video is awesome~ I was envisioning a splatterific mess...  The first one with the drawn out design is very useful!
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Alvin
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« Reply #20 on: April 18, 2011, 08:01:47 pm »

I found that a grizzly used for panning for gold works great over a 5 gal bucket. I have noticed that thicker oil takes longer to filter through the paper bag which I put in the grizzly on the bucket. I also found that if you take the time to let the sludge set, the oil will come to the top so that every once in a while you can poor off the top pure oil. then only when the sludge has less oil do I use the paper bag.
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39don
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« Reply #21 on: April 23, 2011, 06:58:57 pm »

I use the paper bag method and generally get about 60%/80% recovered but I let it drain for 4/6 weeks.
I don't have a 55gal drum like Tony has but larger than Bob's setup. I use only one bag and it does super.

Don
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« Reply #22 on: April 24, 2011, 07:34:13 am »


I went back to one bag only also.  Two bags didn't seem to make a difference except to soak into the bag and render a little less oil recovered. (as Tony pointed out)

TOG
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-Gary

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