Cold collection woes

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

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Cold collection woes

Postby jordanmills » Fri Mar 07, 2008 1:33 pm

Okay, I know "cold" is relative. But the places I get my oil from tend to use thick stuff that gels at 60 F, so I've had trouble collecting all "winter". I can't pump it unless it's freshly dumped in. And not even a gasoline trash pump will pump the stuff if it's gelled at all.

Right now I'm resorting to shoveling it out, heating it in a metal drum, and filtering from that.

Anyone got any other tips to share?
2001 F-250 (7.3 L PSD)
2-tank custom/self-built SVO system
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Postby SunWizard » Fri Mar 07, 2008 5:12 pm

I have that trouble with places that use PHO. Sometimes in winter I have run my little Honda 2kw generator hooked to a 1000w bucket heater, and stick the pickup tube right into the center of the heater. It works but its extra hassle.

Here's the heater:
http://www.petvetsupply.com/equmali001.html

It wouldn't heat quick enough for a trash pump but its fast enough to match my Fill-rite 1604 which does about 5gpm on thick VO, shown here:
Collection pump Fillrite 1604
Last edited by SunWizard on Fri Sep 24, 2010 11:19 am, edited 1 time in total.
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 Burbarian » Fri Mar 07, 2008 8:24 pm

I've got the misfortune of having a primary oil supply of solid lard, and living in a cold New England climate. Collection is by shoveling into a lined steel drum.
Once I get it back to the shed, use a chain hoist, raise and put it on top of a 4ft high angle-iron platform.
Wrap a filthy wool blanket around the drum and secure with strips of rubber from holed inner tubes. This acts as insulation.
The angle iron platform has a steel top to which a coil of pipe has been tack welded to the underside. The pipe has circulating hot water provided by a small woodgas stove. Thermosiphon provides the water circulation, and slowly melts the lard from the bottom-up.
Once it's melted (takes a few hours) pump the lard into another drum through a large kitchen strainer and 2 layers of sock filter into a poly drum.
I now have 5 drums of filtered lard, and NO IDEA how to properly dewater the stuff short of heated mistwash. The salt water upflow method doesn't work too well with lard.
Any suggestions/recommendations most welcome.
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Postby Burbarian » Fri Mar 07, 2008 8:27 pm

SunWizard wrote: Sometimes in winter I have run my little Honda 2kw generator hooked to a 1000w bucket heater, and stick the pickup tube right into the center of the heater.


Sun, why don't you use the generator's exhaust heat? A Home Depot steel pipe water jacket would extract most of that usable heat and add to what you can use.
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Postby SunWizard » Fri Mar 07, 2008 9:22 pm

Burbarian wrote:I now have 5 drums of filtered lard, and NO IDEA how to properly dewater the stuff short of heated mistwash. The salt water upflow method doesn't work too well with lard.
Any suggestions/recommendations most welcome.


A dieselcraft CF rig would filter and dewater it quickly.
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
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Postby SunWizard » Fri Mar 07, 2008 9:24 pm

Burbarian wrote:Sun, why don't you use the generator's exhaust heat? A Home Depot steel pipe water jacket would extract most of that usable heat and add to what you can use.


Interesting idea, but I can't imagine how to make it portable enough to be convenient behind the restaurant, attach to the barrel and the generator for it to work. Its a honda eu2000i so there is no muffler sticking out, its all in a little plastic suitcase, easy to handle.

Maybe I could make some kind of shroud around the barrel and set the generator right next to the barrel, blowing exhaust into the shroud.
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
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Posts: 1723
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Postby hheynow » Fri Mar 07, 2008 9:37 pm

A biodieseler buddy of mine made a huge super sucker with plans purchased from Murphy's Machines. It sucks the coldest oil faster than any portable pump can. I was shocked!
FOR SALE: 1997 Ford F-350 7.3L PSD - Plant Drive kit
1984 Mercedes Euro 300D NA - Custom two tank
Running on used plant oil and biodiesel since May 2006
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Postby jordanmills » Sat Mar 08, 2008 1:24 am

SunWizard wrote:
Burbarian wrote:I now have 5 drums of filtered lard, and NO IDEA how to properly dewater the stuff short of heated mistwash. The salt water upflow method doesn't work too well with lard.
Any suggestions/recommendations most welcome.


A dieselcraft CF rig would filter and dewater it quickly.

I've seen your big thread over on the other forum. It's convinced me that this should be my next purchase, soon as I get some more cash.
2001 F-250 (7.3 L PSD)
2-tank custom/self-built SVO system
jordanmills
 
Posts: 95
Joined: Fri Mar 07, 2008 1:14 pm
Location: Pearland, TX (near Houston)

Postby David » Sat Mar 08, 2008 6:43 am

I decided collecting and processing in winter is just no fun so I have been working extra hard this summer and have collected enough oil to get me clear though till the end of spring.

I have another month of comfortable weather to get what I can processed and I shouldn't have to worry for at least the next 6 months! :)
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Postby SunWizard » Sat Mar 08, 2008 8:57 am

David wrote:I decided collecting and processing in winter is just no fun so I have been working extra hard this summer and have collected enough oil to get me clear though till the end of spring.


I agree with that :!: I try to do the same. One of my places puts out more VO than my 55 gallon barrel will hold over the 3 months of winter, I think I will just give them more barrels and go collect them all when its warm and easy.
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
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Posts: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby djenkins6 » Sat Mar 08, 2008 2:57 pm

SunWizard wrote:I have that trouble with places that use PHO. Sometimes in winter I have run my little Honda 2kw generator hooked to a 1000w bucket heater, and stick the pickup tube right into the center of the heater. It works but its extra hassle.

Here's the heater:
http://www.petvetsupply.com/equmali001.html

It wouldn't heat quick enough for a trash pump but its fast enough to match my Fill-rite 1604 which does about 5gpm on thick VO, shown here:
http://www.burnveg.com/forum/viewtopic.php?t=33


Hey Sunwizard, What do you have on the pickup side, did you fit a metal pipe, then the hose. I would have thought the heater would melt the rubber hose supplied with the pump, or even the longwand plastic tube.
David
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Postby SunWizard » Sat Mar 08, 2008 4:33 pm

I have a metal 100micron strainer from mcmaster. Sometimes I use just the rubber hose without the strainer if the barrel doesn't have too much floating junk. I can stick the hose down into the perforated barrel of the heater without touching the element. It makes it work nicely for heated sucking as described.
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: 1723
Joined: Mon Dec 11, 2006 2:53 pm
Location: N. Colorado

Postby Burbarian » Sat Mar 08, 2008 10:08 pm

SunWizard wrote: A dieselcraft CF rig would filter and dewater it quickly.


Looks like I'll have to bite the bullet and go the CF route then. Thanks for the input.
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