Dieselcraft WVO centrifuge works great-My filter dewater rig

Collecting, filtering and dewatering of WVO SVO vegetable oil. For Biodiesel producers too.

Moderators: SunWizard, coachgeo

Postby SunWizard » Wed May 14, 2008 3:27 pm

If you have a dieselcraft, then it has a low pressure cutoff valve. Then all you need is a ball valve (not 3 way) in a tee after the pump. This is safer since you can't have it in the wrong postion and blow a hose. See my diagram on page 1.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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Postby Freeman » Wed May 14, 2008 4:26 pm

Yes I see, thank you

Free
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Postby VegMeister » Sun May 25, 2008 7:01 pm

What about the possibility of using HDPE plastic 55 gal drums for this setup? I don't think that you'd overheat it, as from a little googling "HDPE has a working temperature of 212 degrees F - 220 degrees F under low load conditions"

I'm thinking the advantage would be there would be less chance of any corrosion, which is always a possibility if you're putting oil with any water content and even slightly acidic.
centralvalleybiodiesel CF
1993 GMC Sierra K2500 6.5L + homebuilt veg kit, OEM glowplug failure (update: rebuilt with a 6.2 block, working fine)
1988 Ford 6.9L OEM dual tank, 90+% veg oil blend.
1989 Ford 7.3L, 80+% veg oil blend.
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Postby SunWizard » Sun May 25, 2008 8:56 pm

The painted on the inside metal barrel that I used gets no corrosion. Some have used HDPE and mentioned they get soft so its risky.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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Postby David » Sun May 25, 2008 9:14 pm

VegMeister wrote:
I'm thinking the advantage would be there would be less chance of any corrosion, which is always a possibility if you're putting oil with any water content and even slightly acidic.


I have a plain steel drum for my drying tank which obviously has wet oil put in it every time which is then dried. I have been using this drum a little over a year now and sometimes it sits for almost a week partially filled with wet oil until I top it off with enough to do a batch.
The drying can take anything from 90 min to 2 days but the drum has not a single speck of rust in or on it.

As a CF would do the same thing as my dryer does, I can't see there being any risk of corrosion in a vessel that contains oil even if the oil has water in it.
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Until then, it's just more endless gloom and doom Veg folk law.
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Postby tubular031 » Sun May 25, 2008 10:03 pm

SunWizard wrote:The painted on the inside metal barrel that I used gets no corrosion. Some have used HDPE and mentioned they get soft so its risky.


I read all over not to use plastic for anything with heat.

This weekend I thought I would test a few things. I took a pot full of water on the stove and heated it up to 150 deg. I used a meat thermometer and my infrared thermometer to verify the temp. Then I put in one of every different fitting and hose I had. PVC sch 40, 80, some plastic hose barb that I got from home depot that was not marked, some braided hose, a piece of sprinkler riser and a 1 inch chunk of a plastic from one of my barrels (the plug from drilling and tapping). I left them in the pot for about 45 minutes at 150 deg. After 45 minutes I took them out and gave them the test. First when they came out I hit them with the infrared thermometer to verify that they were actually hot, and they were, but they cooled fast on the plate. Then I poked them with a knife to see if they would dent and then put them on the counter and pressed them against the corner to see if they would bend. At 150 deg, they all seemed to be ok. The hose felt softer but the other pieces were still solid. Then I took the temp up to 200 for 5 minutes and after 5 minutes gave the same tests. All were pretty soft and I could squish them with my hands with little effort. All but the barrel chunk and the hose barb from home depot were soft.

My findings say that if you are operating at 0 to 150, you SHOULD be ok. Now I did not try putting my plastic in the hot water for 6 hours, so I don’t know if that will skew my results at all. Maybe ill try that some other weekend.

Now this was just me wondering WTF would happen… On my processor I designed it to use all iron and brass parts with a steel barrel. My wash tank will be all plastic and I might use some heat to dry, not too sure about that part yet…..
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Postby SunWizard » Thu May 29, 2008 4:59 pm

just saw today that Dieselcraft has introduced a complete filtering system using this CF, you stand it next your your 55g barrel, and it looks very professional, and expensive, good for those who want a completely built off the shelf system. Looks like you still need to drop heater(s) in your barrel, so not quite as good as my inline heater design, see here:
http://www.dieselcraft.com/process_systems.htm
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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Postby David » Thu May 29, 2008 6:22 pm

Sun,
I hope you bought shares in Diesel craft before you started telling everyone about their products.
I would guarantee you are single handedly responsible for the growth and increase in sales that company has experienced ( not to mention all the competitors) above and beyond what all their sales team, marketing and advertising has achieved since the company went into business!

If I owned the company, I would appoint you chief product tester and you would have a unit of everything we made and a modest research fund so you could experiment and provide fed back to us and the veg oil community to your hearts content.

I wouldn't mind betting you know more about these things and how they practically work than most people in the company would!
I have enjoyed reading your many highly informative posts about these things ( and much else) and you have converted me to seeing that centrifuging is the way to go and leaves all other oil cleaning methods for dead.

On behalf of all the veggers you provide so much help to in such a professional and unselfish, helpful manner, Thank you very much.
_____________________

I don't give a damn about what might or could happen until a significant group of people can tell me it HAS happened to them.
Until then, it's just more endless gloom and doom Veg folk law.
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Postby SunWizard » Thu May 29, 2008 7:15 pm

You're welcome. Good idea, they should give me one of those cool looking new oil processing systems to test and report on :)

I show mine to so many people that they could sell even more if I had a cooler looking rig. People from around the country keep emailing me so they can stop by my place and see my CF rig.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
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Postby latitude500 » Fri May 30, 2008 11:57 pm

Has anyone purchase the Model OPS-50x2? I'm thinking that after I've read up about Suns set up, you would think that you need to upgrade this system. It would need to have a 'T' system for the heating element, and two temperature gauges to allow you to know what temp you are running the oil at as it goes into the centrifuge.

Sun you need to contact them and tell them how to upgrade the systems. LOL

Would that system work if you had a 220 watt element on the side of the tank? Or would it take to long to heat the oil.

I'm thinking of setting up 2 large settling tanks and sucking 2 inchs off the top, it will go through a 75 micron filter and into a 125 gallon steel tank with a cone bottom drain on the very bottom.

I'm thinking of setting the Model OPS-50x2 up to suck off the bottom of the tank and turning the 220 watt water heater element on, that is on the side of the tank and letting the system run for a couple of hours.

We need 200 to 300 gallons a day of 5 micron dewatered oil.

Will that set up work?
How long will it really take me to filter 100 gallons?
How hot will it get?
Is there anything else I'm missing?

Thanks so much for the help
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Postby SunWizard » Fri Jun 13, 2008 9:24 pm

I calculated the cost of running my Dieselcraft rig, and it comes out to $.02/ gallon. (and much cheaper if you live where its already 100F) Any CF rig will be about that same amount since they need the VO heated to about 120F to work right. Heating the VO is the main cost, spinning the rotor is almost nothing ($.001/gallon per hour, costs me 14 cents for a 45gallon batch). It will cost a little more on a low flow rate CF since you need to spin the rotor for much longer. So energy cost is not significant, and costs about the same as the other methods, unless you use solar to heat which will work with a CF also.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1720
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

YouTube

Postby td2dv » Mon Jun 16, 2008 8:37 am

Is there a YouTube video of the SunWizard CF setup?
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Postby SunWizard » Mon Jun 16, 2008 8:48 am

Not that I have seen.
YVORMV - Your veg. oil results may vary.
95 Dodge Cummins 4x4 SVO WVO conversion.
81 Mercedes 300D- stock and happy on V80/D20 blend.
Low fossil net zero house- 100% solar power and heat.
SunWizard
Site Admin
 
Posts: 1720
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby td2dv » Mon Jun 16, 2008 8:59 am

I only burn ~5 gallons of fuel a week and it's hard to justify the $500 Dieselcraft set-up. I'm going to try the Acme juicer solution first. That is unless I can get a couple pals to help form a CoOp of some sort.

denis in Minneapolis
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Postby VegMeister » Mon Jun 16, 2008 9:08 am

Denis,

If you live in Minneapolis and have a good supply of oil, I (as well as others that drive on the 94/90 East/West routes regularly) would be willing to buy good processed oil from you. In which case a centrifuge might pay for itself really quickly, and then you'd have access to your own high-quality centrifuge. Just a thought. If you do invest in a centrifuge and have to sell some veg oil, PM me as I'll be going through that neck of the woods several times this summer.
centralvalleybiodiesel CF
1993 GMC Sierra K2500 6.5L + homebuilt veg kit, OEM glowplug failure (update: rebuilt with a 6.2 block, working fine)
1988 Ford 6.9L OEM dual tank, 90+% veg oil blend.
1989 Ford 7.3L, 80+% veg oil blend.
VegMeister
 
Posts: 86
Joined: Sat Mar 08, 2008 11:12 am
Location: Pembine, WI

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