Shaker Table

The precipitate in the filter paper is from a one pound sample I've been playing with, the precipitate is still wet but you can still clearly see the brown powder along with some blacks.

The black sand left over from the cold leach shows promise of some platinum metals, again only an assay is going to reveal the truth. The black sand has a grain size large enough for a centrifuge recovery.

I found a laboratory close by that will do my assay at a reasonable cost.

Hopefully there's enough gold in this material to warrant setting up a flotation cell.

Originally Posted by HT1

there are 1,000,000 grams in a metric ton






sorry could not help myself

1,000,000 grams in a metric ton Eh, all I want is 672 of them grams per ton. That my friend would be 21.60 troy ounces of gold valued at $24,295.03 American dollars per metric ton.

Lately my luck don’t run that way, so I'm going to process another sample from this batch before breaking out the champaign.

This is the link for the recycling Christmas tree lights in China thread.

But it shows a water shaker table recycling the Copper wire. (Kill 2 birds, 1 stone)

Shijiao, China, Turns American Christmas Lights Into Slippers (VIDEO)

I'm having problems with my tablet, cannot find exactly the right link as my videos is not working.

The Chinese Town That Turns Your Old Christmas Tree Lights Into Slippers - The Atlantic

Originally Posted by eesakiwi

This is the link for the recycling Christmas tree lights in China thread.

But it shows a water shaker table recycling the Copper wire. (Kill 2 birds, 1 stone)

Shijiao, China, Turns American Christmas Lights Into Slippers (VIDEO)

I'm having problems with my tablet, cannot find exactly the right link as my videos is not working.

The Chinese Town That Turns Your Old Christmas Tree Lights Into Slippers - The Atlantic

The water table better known as the shaker table has been in use in the mining industry for well over a hundred years, I believe the fist tables were manufactured by Wilfley his patent run out years ago today many tables bearing his name are still manufactured using his original design also many clones using different mechanical means to obtain the shaking motion are being offered on the market.

https://www.google.ca/search?client=...C5Pj-QOGjpT4CA

Also there are many DIY plans to build your own table available on the Internet.

Someone here on the forum posted they were looking for a water table, I did not know WTF they were actually looking for, the table they want is a shaker table AKA Wilfley Table.

The shaker table does a great job of separating materials having different specific gravity’s such as granulated copper contaminated with plastic chops. The problem is that the tables have a large foot print and can be troublesome to set up,plus they require a solid base like a concrete floor.

For my purposes I'm going to use a small 12 inch centrifuge which is capable of out performing the shaker table by several hundred times, that small 12 inch centrifuge can process 160 pounds a minute while it would take a medium sized table 10 minutes or more to process the same amount of material.

The centrifuge has a small footprint and needs to fine tuning to operate efficiently, the downside is that a centrifuge is going to cost ten times more than a shaker table would..

12 inch centrifuge sounds like the old 'milk and cream seperator'. Great fun as a kid.
Put a little tab of cardboard in the spindle and wind the thing up and suddenly the cardboard lets go and fly's up into the air like a rocket powered helecopter.

The winding lever was because it was hand powered and the spindle normally had a bunch of bowls on it for separating the cream out.

Near where I live there's Gold mine remains from last century and early this one.
Stampers for quartz, big centrifuges. Little huts and buildings, water races and old water pipes.
When Gold busted in the 'States, miners travelled here to try it out. Lots of Chinese too.

A lot of its accessible by motorbike and when Dad met up with a old workmate who had brought a Honda XR250.....
Next thing we were riding them too. Often had 10-15 people all on Hondas riding all sorts of trails in all sorts of places.
For you 'lord of the rings' people. Google image 'Arrow river - Arrowtown'. That's a Gold town and access point to many more Gold towns, also a LOTR film location spot, there's a huge wall of water rushes down that valley in the film.
Funny because in real life there's no way it could happen, and if it did, it would wipe out the township 200yards behind it. (A friend worked on that movie, and others Sir Peters done)

You can pan there and get specks, and dust. Most of the Golds gone now. They used to get a Ounce a day.
A good panner will get a ounce a week in the best places. No real nuggets at all there.

Funny story, a friend & I went there once, I had pan and sluce and such. The big joke was that he was going to find Gold before I did. (He was going there to hunt possums instead)
I'm setting up my sluce just after we get there and he says "Found it, there's some Gold"
And I'm like "WHAT! Already?"

"Yeah, just right there" and points.... At a broken cellphone in the middle of the stream....
Yeah, that's Gold. And I gotta admit it too.

But... Here's a YouTube of a small shaker table.
The reason why I made this post.

Originally Posted by eesakiwi

12 inch centrifuge sounds like the old 'milk and cream seperator'. Great fun as a kid.
Put a little tab of cardboard in the spindle and wind the thing up and suddenly the cardboard lets go and fly's up into the air like a rocket powered helecopter.

The winding lever was because it was hand powered and the spindle normally had a bunch of bowls on it for separating the cream out.

Near where I live there's Gold mine remains from last century and early this one.
Stampers for quartz, big centrifuges. Little huts and buildings, water races and old water pipes.
When Gold busted in the 'States, miners travelled here to try it out. Lots of Chinese too.

A lot of its accessible by motorbike and when Dad met up with a old workmate who had brought a Honda XR250.....
Next thing we were riding them too. Often had 10-15 people all on Hondas riding all sorts of trails in all sorts of places.
For you 'lord of the rings' people. Google image 'Arrow river - Arrowtown'. That's a Gold town and access point to many more Gold towns, also a LOTR film location spot, there's a huge wall of water rushes down that valley in the film.
Funny because in real life there's no way it could happen, and if it did, it would wipe out the township 200yards behind it. (A friend worked on that movie, and others Sir Peters done)

You can pan there and get specks, and dust. Most of the Golds gone now. They used to get a Ounce a day.
A good panner will get a ounce a week in the best places. No real nuggets at all there.

Funny story, a friend & I went there once, I had pan and sluce and such. The big joke was that he was going to find Gold before I did. (He was going there to hunt possums instead)
I'm setting up my sluce just after we get there and he says "Found it, there's some Gold"
And I'm like "WHAT! Already?"

"Yeah, just right there" and points.... At a broken cellphone in the middle of the stream....
Yeah, that's Gold. And I gotta admit it too.

But... Here's a YouTube of a small shaker table.
The reason why I made this post.

The table in the youtube video does work but the mechanics use a connecting rod on a eccentric to give the table reciprocating motion. Water passing over the table does 90% of the work.

A Wilfley table not only move back and forth with reciprocating motion but has a bumping motion on the return of the table, prospectors panning for gold will often bump one side of their pan with the palm of the hand to bring out the fine gold the Wilfley table mimics this effect.

On the Wilfley table you can adjust the bump from a light tap to a much more aggressive one, heavy gold only requires light bumping while recovery of the lighter flour gold requires a more aggressive bump to move the flour forward.

In this video you can hear the bumping action, this bumping action also encourages the heavies like gold and platinum to settle deep into the riffles to where they work their way towards the end of the table to be collected as concentrates.

IMHO the Wilfley wins hands down.

Originally Posted by myekem

Do you know where I can find info on building an air separation table? or how well does a centrifuge work? I have a granulator geared up.. but thats as far as I got. I tried to make a small mock up for an air table but couldn't get it to work.

I think the shaker aka ( Wilfley ) table would be best suited to separating the plastic from the copper chops.

If you prefer a turn key table try Savona Equipment in BC, they have new and used tables.

I would also do some research on spiral concentrators, it is a type of centrifuge that I believe is capable of processing more pounds per hour than the shaker table.

If you have deep pockets the Eddy Current separator would be the Cadillac for separating PVC from your non ferrous. You would end up with a dry product. I did research this type of material separation conveyor, they're not rocket science anyone could build one.

I have been looking hard at these tables.
Part of what I am saving up is silicon chips, flatpacks, thru hole, plug ins and the 'j' legged eproms for incineration and the Gold/Copper leg recovery. Also the power transistors which I find out have Gold wire connections too.
Since I have a lot of this saved up, and returns seem to be about 0.6-0.7gms per Lb.
I have a good amount of Gold there.... Ounce plus... :-)

And since I have about 200kg of plastic coated Copper wire, selling or burning is my only option, till the shaker table and a homebuilt chopper would give me the chance to get #2 price with a clean process and over 99% recovery of Copper.
My yard only pays the lowest return % for plastic coated wire.
And 50kg of my wire is the 4 x2 strand telephone wire with no outer cover = 85% return...

My quick question is, are the riffles tapered in height towards the end?
I am thinking that 'baby corrugated iron' could be used as the riffle board if its not nessesary to taper them.
Everything else seems pretty easy, I have lots of time to build one, its a investment in that time too.

A couple of days ago my neighbours son popped over to ask me about 'making a home built casting furnace' for melting Ali.
He had a mid 70's book with some rough details in it.
I pointed out some stuff for him, like we cannot get the cement here, crucibles are far too expensive here and his size ideas a bit too small.
And it will not melt Cast Iron..
But, I dragged out a diesel furnace burner/blower I have, showed him some gas bottles for casting in, mentioned using kittylitter & sand & cement, along with some refractory insulation as cement and recycling cast Ali as Ali for casting.

So I think we could make one between us. And I can use it to incinerate silicon chips....
He can do the actual physical work and I supply parts and ideas, nice deal.

I gotta say alloy2, without the shaker table idea, it'd be a used gas bottle as curcible on gas hob and Gold pan the wires out....by hand.

Using a shaker table would be perfect for Gold mining in our areas too, there's no 'claims' for hobby panning/mining here, just free areas to do it in and a 'environmental' guide to follow.

Hobby mining is about a Ounce a week and less...per person. NZ$1300 a Oz?