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Sluice in slow water
overdog  
Posted : Wednesday, 8 May 2013 6:35:40 PM(UTC)
overdog

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Gentlemen I have a problem... No not one that clears up with penicillin but gold related.
I have access to a claim that has lots of flood gold but the river there is deep and slow.How do I process paydirt without the use of motorised gear(highbankers,that sort of thing) as the owner is very clear that he doesn't want any motorised gear used?
A sluice box would be next to useless and panning would take forever.

Any theories?
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NUGGY  
Posted : Wednesday, 8 May 2013 7:01:38 PM(UTC)
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Hi Overdog, A banjo might work if you know what these are - a sluice box with top end blocked off, you have it on the bank with discharge end pointed at you - shovel into the top of box and throw water up onto the gravel, bit of an art to work them well but lot faster than panning. Should be able to google a picture, or find one in a gold mining book. A cradle is another possibility and might be better at retaining fine gold, but slower throughput. I'll probably think of something else less obvious eventually and get back to you.
NUGGY
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overdog  
Posted : Wednesday, 8 May 2013 7:19:57 PM(UTC)
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Cheers Nuggy-I had played around with the idea of a hopper on top of my sluice box that washed gravel in the box but would have to classify down pretty fine...
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gogold  
Posted : Wednesday, 8 May 2013 8:05:12 PM(UTC)
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maybe build a cradle? theyre pretty simple to use. or else walk untill you find a small side creek you can set up in.
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gingerbreadman  
Posted : Wednesday, 8 May 2013 8:55:37 PM(UTC)
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Maybe you could convert your sluice to something like this still looks pretty slow but mite work. www.youtube.com/watch?NR...LI&feature=endscreen
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lucky01  
Posted : Sunday, 12 May 2013 9:47:57 PM(UTC)
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hi there why not try a gravity dredge systew get some 110 dia ag drain you can get one that is smooth inside in 30 meter coils works really well as long as you can get a bit of fall back to your sluice box costs around $170 for 30 meters.
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Jd  
Posted : Saturday, 25 May 2013 11:52:54 AM(UTC)
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I have the same problem and I was thinking about a 12 volt bulge pump or is that regarded as motorised what do you think jd
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overdog  
Posted : Sunday, 26 May 2013 9:34:02 PM(UTC)
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Hi jd- had a quick look today and its not too far 2 push a wheelbarrow to some fast water.

Good idea with the pump tho-mite have to give that a go...
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nzpoohbear40  
Posted : Monday, 27 May 2013 12:21:04 AM(UTC)
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gingerbread that looks like something i could put on my sluce...lol
Chris - Fisher Dealer http://www.puiakisupply.co.nz/
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Jd  
Posted : Monday, 27 May 2013 6:23:31 PM(UTC)
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Hay overdog
I run some pvc tubing from a local creek above the area down hill run and it worked perfect spent all day in sandy conditions and got some nice gold for my efforts the wheel barrow is also a great idea I use that too just got back I'm thinking about making a portable sluice with a bulge pump mini dredge it would get some use has anyone tried that before Ill have to work out what's the biggest 12 vt bulge is available and how long it would run for research time jd
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richmanpoorman  
Posted : Wednesday, 5 June 2013 10:30:45 PM(UTC)
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I built up a highbanker like hopper for my sluice box with various sized grids, big gravel falls out the front to waste with finer gravel and sand going down the sluice. I have it set up on the river bank on an angle close to a water source and just bucket water and gravel in as required, hard work but faster than panning. Works well for the the concentration of iron sand in the clutha river.

richman
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