Ideas needed for pumped coarse straining

[Tony]

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!

[bertle]

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!

[Julian]

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).

[Head Womble]

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.

[Rotary-Motion]

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.

[Bill]

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.

[Rotary-Motion]

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

[nathanrobo]

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?

[greasemonkey]

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.

[Julian]

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.

[Julian]

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.

[Julian]

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.

[therecklessengineer]

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 £££££.

[bertle]

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?

[nigelb]

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.