Ideas wanted - decent vibrator!

[Tony]

I'd like to see if vibration helps settling, initially I was thinking a loudspeaker in a plastic bag with 50Hz supply.  But there must be something between that and a concrete poker.

Phone vibrator in a metal box?

Any ingenious ideas?

[greasemonkey]

I think you have answered your own question. A 240 volt, nine inch todger would work fine. Probably can't get a Viton one, so you might have to cover it in something.......

Even a small concrete poker would be too much, I think. More likely to froth it, than vibrate it. I was thinking about a wacker plate. Sit it on a board, then put the drums on the board with it. That would give good vibration.
I was looking at them, on ebay, and came across this. Cheap enough to give it a go.
http://www.ebay.co.uk/itm/COMPACTOR-WACKER-PLATE-HAND-HELD-240-V-/311150597795?pt=UK_BOI_Industrial_Tools_Construction_Tools_ET&hash=item48720556a3

It's really is a vibrating plate, nothing explicit, honest........

[Tony]

I'm kinda looking for something that I can submerge to keep the noise down, which is why speaker-in-a-bag might work.  Maybe.

I suspect adult toys aren't rated for continuous duty?

[julianf]

Magentic stirrer on low revs.  You can get triangular ones which, i suspect, wobble / vibrate.

[Tony]

Innards of this?

http://www.ebay.co.uk/itm/Etching-Etcher-Engraving-Electric-on-Metal-Machine-Tool-/151285985723

Might not do much though, can't be powerful?

Possible others... coffee machine pump, tattoo machine coil pack?

[greasemonkey]

Not that I really have anything to go by, but I'd agree with you, it's too weak. I'd be inclined to try and put something like an orbital sander against a 25 litre drum, hard enough so it stops spinning.

If that did happen to work, you could pull the wheel off the orbital, attach a sheet of suitable plastic, or metal via a rubber coupling, and drop it down in the drum. I wouldn't be surprised if you could put a biggish piece on, and drop it in a 205. You'd really be getting the vibration down into the bio. Wouldn't be over noisy, i wouldn't have thought.

[Julian]

Small aquarium air pumps work using a coil on a make and break supply and are quiet.

[K.H]

I use a sheet sander held against the side when vibrating smaller cast concrete work tops, also have a small Makita vibrating poker if you want to borrow it

[Glycer-rides]

How foolhardy would your Mrs think a 205L drum on top of the washing machine was?

[Tony]

No less foolish than some of the stuff I've done.

Like the orbital sander idea.  I've got one of them and it's useless for anything I've tried sanding with it.

[julianf]

any old motor with an offset weight

[Julian]

To add fuel to Tony's argument, (pun intended) I had to change the filter on the Disco as recently it was getting slow, well slower than normal, up hills.

A new filter cured the problem perfectly so I cut open the old one to see what the problem was.  I haven't changed the filter for two, possibly three years and this was the result ...





I'd always assumed this stuff was glycerin remnants but it isn't water soluble.  If it was glycerin you'd expect it to emulsify the bio remnants and wash away under the tap, but it doesn't.

[Julian]

Just a thought ... I wonder if my heated filter encourages this drop out?

Just on engine temperature, it routinely reaches 30 - 40°C this time of year.

[Tony]

Still not got around to this, though I should have some old speakers to play with this week.

One batch I've got has been refusing to settle for weeks, I pumped out 50l into two 25l drums, one I sat in the garden to night/day cycle and one came into the house to just sit in the warm.

After about a week or so the house one was passing a 50:50 but the garden one was still cloudy, so heat in this case helped.  So perhaps vibration will also help.  I'll find out

[oakwoodtv]

Just a thought would GLs electrostatic glycerol separation
system drop this brown substance.