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The Pocket Sluice

Author Topic: Built my own drop trap sluice  (Read 92046 times)

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Offline yicke

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Built my own drop trap sluice
« on: January 27, 2011, 08:02:08 AM »
Hi I have been viewing all the you tube footage on the bazookatrap sluice and I am  interested in this design.So useing materials I had I built a simalar sluice here are some photo's.



I used 3/8 spruce plywood,1-8 spruce and a peice of puck board



I glued and stapled everything together





I used 1 inch conduit.





The material I used for the grizzly is from a broken electrician snake I cut bent drilled holes and glued into place.



Lastly I covered with fyberglass bondo. Now I wait untill spring to rty it out.



Offline muconium

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Re: Built my own drop trap sluice
« Reply #1 on: January 27, 2011, 01:11:51 PM »
These things are looking better and better to me. I've been waiting for drop traps to get a good reputation on this forum before I think about buying or building one.

They seem to take care of a lot of problems, don't they? No pump, fuel, etc. like a highbanker. No pre-classifying like an in-stream sluice...

Lookin' good!  <-good_>
Rusty dirt makes me drool.

Offline Woodspirit

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Re: Built my own drop trap sluice
« Reply #2 on: January 28, 2011, 05:49:30 AM »
Yicke,

Great looking project.  {-applause-}
I'm anxious to see some videos of the sluice in action or at least some photos.

TJ

Offline Toppossum

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Re: Built my own drop trap sluice
« Reply #3 on: January 28, 2011, 10:38:42 AM »
Very nice build.  I have been considering building a bazookatrap  type high banker.  Good luck with it.

Offline jes_playin

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Re: Built my own drop trap sluice
« Reply #4 on: January 28, 2011, 11:35:57 AM »
I've been intrigued by the bazooka gold trap sluice since first seeing the youtube videos. I plan on building one myself as soon as I find the right materials. My brother-in-law works for a plastics company so I plan on seeing if he can get me some sheets of ABS plastic.

Offline astrobouncer

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Re: Built my own drop trap sluice
« Reply #5 on: January 31, 2011, 10:58:06 AM »
Here's my version of the gold trap sluice.

Its almost done, I just have to seal a couple seams on the back trap, and then add some more waterproofing.

I took pictures of it next to the bazooka to help show its dimensions.

My version is narrower then the Bazooka. I did this on purpose, when you have excessive width you are wasting energy that could be better spent moving overburden up and out of the sluice. Mine starts at 10 inches wide and tapers to 6 inches at the end. It continues tapering right up until the end because the narrower width should help push the oversize out of the sluice.

The first four pics is of the bottom section and the trap.






Top part that tapers inward, plus the grizzly.  




Inside the bottom half of mine.


Bottom half of the bazooka.


And then side by side photos of mine next to the bazooka.








For anyone not familiar with how these work, they use a fluidized bed principle to keep the material in the trap liquidized. As long as you keep the trap full of water, the material coming in from the top will settle the heavies in the trap and the lighter material will wash out the back. They work great in that they have a built in classifier and I can move about double as much material with a trap sluice like the Bazooka then my drop riffle sluices.  Also, its about impossible to lose gold, unless you displace the gold in the trap with something both heavier and smaller (which is hard to do).

There's downsides to one of these though. They require more water then a normal sluice or a drop riffle and in fact, the more water you give them the better they run. Also they generate massive amounts of tailings which have to be shoveled from behind the sluice or the trap will not work right.

Offline goldmann

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Re: Built my own drop trap sluice
« Reply #6 on: January 31, 2011, 01:01:39 PM »
I am curious, how are they at catching fine and flour gold??

Thank you.

Offline astrobouncer

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Re: Built my own drop trap sluice
« Reply #7 on: January 31, 2011, 01:41:35 PM »
They do not lose gold unless you somehow manage to displace the gold in the trap with something both smaller, and heavier then the gold. Which is about impossible for most areas you would sluice at. Or I guess its possible to lose gold if you ran it at an extreme angle, like straight up in the air, but that's about the only way I could see it losing gold.  

The trap on the Bazooka is 9 inches wide by 5 inches long, by 3 inches high.

Even if you ran this thing all week long, the gold would just settle deeper into the fluidized bed. I routinely screen the tailings on the Bazooka and have not yet found any color behind it. 

Offline Toppossum

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Re: Built my own drop trap sluice
« Reply #8 on: January 31, 2011, 02:58:31 PM »
This video gives you a very good demonstration of how the Bazooka gold trap works.


    YouTube
        - Looking for Gold - Episode 6 - Bazooka Gold Trap Sluice - Part 1
 


I might build a small one similar to the one in the video for roadside testing.  It doesn't seem require a lot of water a should be easy to set up on a recirculating system with a bilge pump.

Offline Vagadero

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Re: Built my own drop trap sluice
« Reply #9 on: February 01, 2011, 04:53:50 PM »

 


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