Biopowered - vegetable oil and biodiesel forum
Oil Feedstock => Oil coarse filtering, settling, drying and storage => Topic started by: Tony on March 17, 2013, 11:35:32 AM
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Hi chaps!
For oil storage I'd love some kind of inline 10" course filter, something that is not particularly fine, just get the lumps out. I have a footer type strainer but that blocks all the time (suction side - very frustrating) and a Y filter that keith gave me but it blocks very quickly - can only take a small volume of BCBs.
I can't seem to find a 10" mesh type filter for a spare 10" housing I've got - open to ideas, even on how to make one...
I'm sure we had a quick discussion on this before but I can't find the thread.
Tony
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You can get swimming pool strainers that fit in our 9" housings, not sure what micron they are though.
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What about the wifes tights inside a bit of grey drain pipe, like your woodchip filter fingy?
PS Make sure she's not in'm.
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What about the wifes tights inside a bit of grey drain pipe, like your woodchip filter fingy?
PS Make sure she's not in'm.
..or just use your own Tony. ;)
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I think the pump vs my Friday night tights would be no contest but not a bad idea with some kind of plastic mesh. I did keep the guard mesh from around an old trampoline, doubled or tripled up it would work well.
I would prefer some kind of steel mesh element for a 10" filter, maybe a modded spun one with slices out of it?
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We used to use a washable plastic mesh filter when we had a chrome plating plant at work. These were a 10" ones that would fit inside a standard filter housing. We had 5 in a housing with a carbon filter in the centre. I wonder if something like this would be suitable. I imagine there would be plenty of filter companies out there who could supply.
Nige
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That sounds ideal Nige, I wonder how I would go about finding a company that does them?
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That sounds ideal Nige, I wonder how I would go about finding a company that does them?
Google?
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Just googled "10" course filter" and got this as the first hit:
http://www.biopowered.co.uk/forum/index.php/topic,730.0.html
Well at least I found the thread :)
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That sounds ideal Nige, I wonder how I would go about finding a company that does them?
I'll try to locate the production engineer who looked after the plating plant to see if he can remember who used to supply these filters.
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I've been perusing Google as well.
Found this: http://inlinefilters.co.uk/index.php?main_page=product_info&cPath=918_921_1332&products_id=16825
Bit pricey, but filter porn!
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Would this work:
http://www.ebay.co.uk/itm/Brass-16-Woven-Mesh-A4-Sheet-coarse-210-x-300mm-eBay-Price-/130867506263
Rolled up, with jubilee clips around the ends cut off a standard element? Maybe also a ring in the middle for support?
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I reckon that would work. looking at that mesh it has the appearance of a kitchen sieve. Is that the sort of filtering that you're after?
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It is, and domestic meshes could definitely turn out to be cheaper if I can find something 10" in width :)
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That mesh you put up is Brass, Tony. I think it might suffer from the green slime that develops. It could also be quite soft. Take a look at his shop, he's got loads of different meshes.
This one is stainless steel.
http://www.ebay.co.uk/itm/Stainless-Steel-Woven-Wire-Mesh-A4-Sheet-Medium-Heavy-/151012540804?pt=UK_Crafts_Other_Crafts_EH&hash=item23290c8184
How about making like a three stage filter, with wider holes on the outside, decreasing towards the middle, and have it so it can easily be pulled apart and swilled out.
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Ah good point on the slime. I wonder if I can find something at the recycling centre with suitable mesh (old fireguard?). I'll take aviation sheers and negotiate :)
If it fits a standard 10" housing then it can be popped into the dishwasher when the missus isn't looking!
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How about using scotch brite in a filter housing. We use it at work for polishing the stainless but I have rolled a bit up and stuffed it in a tube to make a filter for a colant system on a saw that was being troublesome. Think it is still on it and that was years ago!
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How about a spool shape out of plastic or wood. You could then clamp what ever filter medium you wanted to the flanges (might need intermediate flanges to stop it collapsing). Once it gets too gungy, throw away the media and reuse the spool.
If you supply the materials and dimensions, I'm happy to knock one up on the lathe (so to speak).
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Tony, don't forget that what ever you use it needs to seal at each end.
We use brass fittings in our reactors, so I see no reason why it can't be used in a filter.
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i have and use sediment washable 10 inch filter inserts for the 10 inch housing, i have a 50 micron and 80 micron washable, i dare say you can get higher microns, i purchased mine off ebay and someone off the vod site.
and i also wrap them in jay cloths, these filters are the first in the set i pump through, saves a few quid as time goes by. haveing 2 makes it easier to swap it out and have one in the wash aswell as keeping the filtering going.
mine are plastic mesh (just like my sausage filter in the car) gauze...
50 for summer and 80 for winter, but not much init...
i would imagine for rough filtering all sorts of rubbish you would need at least a 600 micron even higher, i have a 205 barrel filter of 400m off K.H and that is still very very fine indeed.
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As a coarse strainer I use a metal waste paper bin inside a cubie with the top cut off. Pour oil into the basket which catches the coarse rubbish. The oil that passes to the outside of the basket is pumped out of the cubie onto a 400 micron, 10" barrel (or bucket) filter ontop of the oil drying barrel. The pump having an internal filter as well, can't remember what size.
Anyway it all clogs up after passing about 200l of oil so being able to clean off the filters easily is fairly important. Well thats what their supposed to do aint it.
After heating the oil to dry it and settling the oil comes out resonably clear. Every couple of years a scrape the fine settled silt out of the bottom of the drying barrel.
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http://www.ebay.co.uk/itm/Hydac-stainless-steel-tank-and-trolly-with-tubing-and-filters-/111032529906?pt=LH_DefaultDomain_3&hash=item19da0df3f2
check out the 2 filter in stainless like our plastic ones
nice bit of kit in stainless for filtering
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How about using scotch brite in a filter housing. We use it at work for polishing the stainless but I have rolled a bit up and stuffed it in a tube to make a filter for a colant system on a saw that was being troublesome. Think it is still on it and that was years ago!
Andrew
Could you show me this when I come along? I had been thinking of pouring the oil through a 600 micron strainer. Heating in a conical tank, pumping out from the bottom back into the top, replacing the 600 micron strainer with a 150 micron strainer, then fine filtering.
But it'd b good to see the scotch brite. We had been talking about whether the bcb's held water and could be acidic, having an effect on the reaction?
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We use brass fittings in our reactors, so I see no reason why it can't be used in a filter.
I thought the green slime might build up enough to partially block the fine holes.
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We use brass fittings in our reactors, so I see no reason why it can't be used in a filter.
I thought the green slime might build up enough to partially block the fine holes.
I've got a copper gauze as part of my oil filtering system and the major problem is oil polymerising and blocking the holes when not in use. It may be compounded by the material, but if this were submerged in oil most of the time, the problem would be reduced.
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I wonder if Scotchbrite is really such a good idea. It's an abrasive, and whenever I use any you can detect bits of abrasive that have detached.
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Landscaping fabric, the woven type, not the fleece, works very well for me in sock format. It might be possible to use it in a 10" filter.
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I've been poking around the engine room - we've got quite a number of strainers. However, they all seem to be manufactured bespoke - none have a label on them.
Although there are the Boll & Kirsch fuel filters with multiple washable stages. However, these would be £££££.
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How about using scotch brite in a filter housing. We use it at work for polishing the stainless but I have rolled a bit up and stuffed it in a tube to make a filter for a colant system on a saw that was being troublesome. Think it is still on it and that was years ago!
Andrew
Could you show me this when I come along? I had been thinking of pouring the oil through a 600 micron strainer. Heating in a conical tank, pumping out from the bottom back into the top, replacing the 600 micron strainer with a 150 micron strainer, then fine filtering.
But it'd b good to see the scotch brite. We had been talking about whether the bcb's held water and could be acidic, having an effect on the reaction?
Yeh, no problem. I can see the point about it being an abrasive but would oil flowing through it break the abrasive off?
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I had a play with "scotch brite filters" a few years ago. I cut it into discs and inserted them into a ss housing. Trouble was they blocked up far too quickly in my application. No reason it couldn't work for others though.
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We use brass fittings in our reactors, so I see no reason why it can't be used in a filter.
I thought the green slime might build up enough to partially block the fine holes.
I've got a copper gauze as part of my oil filtering system and the major problem is oil polymerising and blocking the holes when not in use. It may be compounded by the material, but if this were submerged in oil most of the time, the problem would be reduced.
My problem is the footer mesh blocks on the suction side, I'd have thought on the discharge side most cream/slime would get pushed through by the pump pressure (fine by me). The mono is a mean old beast, I can't see it complaining about a little bit of blockage.
I don't really want tiny bits out of the oil, just enough to not block my multistagers when processing.
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If your going to use mesh as fine as that brass stuff, I'd be concerned that the pressure of the pump would collapse the filter when it blocks. The stainless steel stuff would be way stronger.
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First thing I would ask is what are you pumping out of, what state is the oil in and what sort of stuff are you trying to get out?
You can get all sorts of ideas, most could be useless the above can be answered.
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The good thing about those swimming pool units is that the fluid comes in, but it does not go out at the bottom. So its not like the fluid has to be sucked through the previous debris. Its more of a cage sitting in a larger swirl pot, and the large bits fall to the base of the cage, out of the way.
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First thing I would ask is what are you pumping out of, what state is the oil in and what sort of stuff are you trying to get out?
You can get all sorts of ideas, most could be useless the above can be answered.
It's for pumping out 60l drums. I have a fine mesh footer and one that is much courser (enough to stop chips but not much else).
The oil itself usually is a layer of chips and solids at the bottom that doesn't get pumped, and either nice oil above it (great) or oil with suspended light bits in (popadom bits, seeds), or in cold weather thickening lumpy oil - but with more bits in suspension due to the thickening nature of it.
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I presume you're pumping into a 205L barrel to dry it? If so, just get a barrel sized 400 micron strainer/filter and pour the oil straight through that? This is what I do and don't have to mess about with numerous strainers, pumps and filters.
The area of a barrel strainer is so great it takes a lot of crap to block it.
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It goes straight into a 1200l steel tank for settling. There's a tap at the bottom for water drainoff, and slightly higher a takeoff point for the processor. As it's filtered any thick stuff at the bottom isn't a problem for processing directly.
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I am not sure what it is exactly you want but how about getting a 10" filter housing and some mesh, using an element filter for a template make some mesh filters, you can cable time them to start with and maybe then solder or spot weld them if they work, pop the elements in the bowl and Robertos is your dads bro! ;D
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A bit of lateral thinking here so bear with me.
How about using an 8" shower head (about £10 from the bay) as your footer but pipe it so that it faces upwards.
You can probably replace the spray bit with some suitable mesh, it will have a much greater surface area than a small footer so shouldn't block as quickly and if it faces upwards, you won't be sucking the bits from the bottom.
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These are the filters I was talking about Tony:
http://www.ebay.co.uk/itm/10-WASHABLE-PLEATED-WATER-FILTER-RE-USABLE-PREFILTER-BIODIESEL-HARD-WATER-/300597898000?pt=UK_HGKitchen_SmallApp_RL&hash=item45fd07eb10
or a 1micron version here for £11 delivered;
http://www.amazon.co.uk/dp/B007ATOC9O/