Gold Seperator

Nightjar, that is one truly AWESOME spiral machine......what kind of volume do you generally process through it?

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		Quote:			Posted by Nightjar
	Hi all, Built myself a goldwheel which is driven by a 12 volt windscreen motor. The sluice extension recirculates the water. The fines from the dryblower are fed into the goldwheel and even the mustard gold is retrieved. Western Australia creeks in the goldfields very rarely have water in them so we have to resort to methods like this to retrieve our gold.

Great machine, while it is not cupped like a Desert Fox, I see no reason why it should not be great, with or without water!

You have inspired me to build a big wheel, as these can be used for concentrating, also. What I want to be able to do is shovel into a box that wets down the gravel, sends it over a screen and then onto a wheel, like a 3 or 4 foot wheel (90 to 120 cm!)

Such a wheel would lay back more and the heavies would be magnetite, garnets, ilmenite, etc, as well as gold. After so much concentrate accumulates, it would get processed with the smaller wheel.

I think a 4 foot wheel might need a small gas motor, and pump.... it would be heavy. I considered using a hump mold and making it of epoxy resin and fiberglass. But when I have 2 welders, sitting around, and one a wire welder....??

Someone here makes cysterns using 60 inch corrugated culvert and it has a 60 inch lid! That lid would be purrrrfect! Why re-invent the whole wheel when half a wheel will work?

I downloaded your wheel pictures and they will go into my 'slide-show.' Thanks!

The other rig is a mystery without seeing some theory and drawings.

In the Yukon, water is scarce so every miner on a creek, has a system for recycling his water, but they do have water, part of the year, and snow for the rest.

goldigger

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Those are awsome! Thats what I like about this kind of thread, we all get new ideas! 

Great stuff! Always wanted to go to the land down under, maybe some day. 

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I have been mining and prospecting since 1973.... today most of my income comes from mining.... I usually process several hundred tons a day....and usually have the same problem as any prospector..how to process all the concentrates one accumulates will mining for placer gold...

Many years ago, I built this neat, quick way of processing your cons down to mostly black sand and gold, which is then easily hand panned to separate the gold from the black sands...and finally the remainder of the sands are moved across a table to recover the really small fine gold particles..like down to one micron.....

Take a used or new plastic utility tub with legs...... one like you find in a home utility room next to a washer and dryer..or garage...

Next, drill a 5/8 to 3/4 hole in the side of the tub, about 1 to 2 inches (closer is better) from one side...and about 4 inches up from the bottom of the tub...

Next force fit a barbed hose fitting into the hole...(an elbow works well)...and on the end of the barbed hose fitting, outside the tub... attach a small piece of tubing or hose and a valve to control water flow....

Next attach a 90 degree discharge pipe to the discharge hole in the middle of the tub......  Using a hammer, before you attach the discharge pipe....hammer the open pipe to nearly close..say about 1/2 inch ...this will flare the water and material to start an even flow of the material as it discharges the tub....

Also obtain 2 "Easy Panner" type sluice boxes... these will be laced under the now nearly closed open end of the discharge pipe...shingle one easy panner into the other easy panner...

Attach your water supply to the barbed hose fitting and valve...and adjust the angle of the water as it enters the tub..and the amount of the flow...so you will have a swirling whirlpool going around the bottom of the tub....

Now introduce your 1/4 inch minus screened concentrates into your tub... regulating how much you put in the tub at one time... what action you want is the material.swirling around under a thin sheet of water...around and around in the whirpool... until the lighter material gets washed down the discharge pipe and into the easy panner sluice box.... using your fingers... keep the bulk of the cons toward the outside of the whirlpool and near the tub walls....you'll get a larger build up into the corners,.... that is okay... it will slowly slide off as it builds up into the faster water and be washed out the discharge pipe....

If your gold...more than a few small pieces make toward the bottom of the second easy panner box... you'll need to adjust and play with the amount of material you introduce..the water flow volume and pressure and the slant of the sluice boxes.....

I usually run many several hundred tones of material trough my main recovery and separating plant... and usuall build up, at the end of the day ..or week..depending how often I clean up...400 to 500 pounds worth of concentrates...and with this tub process.. I can process all that material down to nearly all black sand and gold within an hour or so....

After this I pan out the larger gold pieces and run the balance of the black sands across a table to recover the very fine gold, down to near 1 micron.....

The easy panner boxes are just for insurance...,and 90% of the gold will stay in the tub.... I usually clean out the easy panners and hand pan them separately... and the tub, I run into a bucket once I fell most of the light materials have all been washed out of the cons...and Pan this bucket separately too...

I have used this method for a couple of decades.... it is cheap to build... easy to design and easy to use and very effective...

Good luck with your prospecting and processing your cons....





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Thanks for the comments....

Unfortunately I do not have a picture on this computer....as soon as I get one, I'll post it...probably after the spring...

The commercial plant is in eastern Oregon....the Blue Mountains...

The nuggets are from a commercial mine I had in Northern California Sierra's... above Downieville, CA.....(the northern edge of the "mother load") near the 7,000 foot elevation from an old hanging bench....protected by a lava cap... where the old channel came from  or went to is unknown... just a small piece of the channel left... we mined it out in a couple of years... at one time recovered 60 pounds of gold from about 5,000 tons of bank run gravel... It would be hard to mine this kind of a location today.... but back in the day... we sat down with the minerals officer at the forestry station.. go over our plan of operation and wrote a check for the minimal operational bond...and went to work the next day... unfortunately, those days are gone...

Good luck in your construction and prospecting..,.,

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