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Thread: DIY Double flared fluid bed sluice, with 3 chambers.

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  1. #1
    us
    Jun 2009
    Blue Ridge, South Carolina
    815
    280 times

    DIY Double flared fluid bed sluice, with 3 chambers.



    I built this sluice out of some scrap wood in my garage.

    This idea is similar in concept to to the New Zealand Hydraulic riffles, however instead of supplying the water from above like on those, I use the sides. 6 water holes per chamber, 3 on each side about 1/8 inch in diameter each. The first two chambers have a 45 degree back slope which serves two purposes. First, it lessens the material buildup in the riffle by keeping it shallower (and thus easier to keep fluidized), and second it allows the heavies to sink into the deeper part of the chambers. Most of the gold will not make it past the first chamber, but if it does, with this design it has 2 more chambers to settle in.

    The purpose of the double flare is to speed up the material at first to push the lighter tailings out, then to slow it down again where it widens to drop the fine gold.

    I built it to self classifies to about 6 mesh, but I can change it to any size by switching grizzly if needed. The exit port for tailings under the grizzly is 1/2 inch high.

    I tested it a couple times now, but only took video the one time, and so far it seems to work great, catching down to sub 100 mesh easily. More tests and video showing it in action coming soon.
    Oakview2, Lanny in AB and WildWill like this.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  2. #2
    us
    Northern California

    Aug 2007
    'South' Texas
    XLT, GMT, 6000D Coinmaster
    2,703
    1315 times
    All Types Of Treasure Hunting
    And yet another DIY marvel that I would need to see in action to understand how it works. You've gone way past my abilities in designing new gadgets. As always the construction and the ideas keep coming up with new and interesing washing/separteing/classifying ideas......63bkpkr
    Out searching w/GMT & friend under my arm

  3. #3
    us
    Jun 2009
    Blue Ridge, South Carolina
    815
    280 times
    More testing.
    Oakview2 and WildWill like this.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  4. #4
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
    4,545
    1673 times
    All Types Of Treasure Hunting
    Another great fluid bed design

    On a side note, I've found that punch plate works best at preventing a buildup of material on the grizzly. Gravel wants to catch and hang up more so on mesh.
    Problem is, finding a cheap source for punch plate.
    Doitlaynstyle likes this.
    ~Diggin The Adventure~
    Visit My Personal Forum Pages

  5. #5

    May 2005
    St. Louis, missouri
    2,906
    559 times
    yep, id say it is working just fine!

  6. #6

    Sep 2012
    1
    All Types Of Treasure Hunting
    Hi Astro, your sluice looks great.

    Got inspired by your Sluices and trying to build my own now. May i ask you what type of wood do you use and do you coat it in any way, and with what type of coating?
    I myself have only access to some scrap wood from the garage but i think it will not last long in the water without coating.

    greets from europe(austria)
    refo

  7. #7
    us
    Jun 2009
    Blue Ridge, South Carolina
    815
    280 times
    First I stain the wood, then I use several coats of polyurethane. The wood type was just some scrap I had laying around in the garage, not sure but it wasnt hardwood, probably pine. I am still using this thing too works great, the only thing it needs is a leaf guard on the bottom so floating leaves dont get in there and block the pipes.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  8. #8

    May 2005
    St. Louis, missouri
    2,906
    559 times
    just a suggestion....maybe on your next video/test, invite all of us out to witness this filmining/test for some verified testimonials for unbiased veiwers like us. we promise not to disclose where we see this at.............

  9. #9
    us
    Jun 2009
    Blue Ridge, South Carolina
    815
    280 times
    Anyone is welcome to come try it when I am up at Thermal City, in fact treasure net member 'Dipstick' seen it in use when I was filming this episode not long ago (and Dr Phil has used it several times):



    The thing is, I dont always know when I am gonna head out there, but I always have this with me when I do. I might even go tomorrow or Sunday but that depends on if we are working creek 5 sunday or not. Plus its cheap to build, maybe 20 bucks, so people are welcome to build one and try it yourselves. Just make sure you get the tapered front 2 chambers like I have, that design is critical to keeping the chambers small and fluidized.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  10. #10

    Apr 2003
    Alberta
    Various Minelabs(5000, 2100, X-Terra 705), Falcon MD20, and the Tesoro Sand Shark for sniping underwater on cleaned bedrock.
    3,298
    1439 times
    Metal detecting for gold and Surface Suction Sluicing, AKA Triple-S mining.
    Nice sluice product design you've developed--it looks like it works great! I enjoyed your videos as well.

    Thanks for taking the time to make your videos and post them.

    All the best,

    Lanny
    Nothin' quite as fun as chasin' sassy gold! http://www.treasurenet.com/forums/me...mysteries.html

  11. #11
    us
    Confused

    Feb 2013
    Northern Ca
    37
    3 times
    Prospecting
    Hey Astro,

    That sluice is beautiful, and I've watched both videos, but I can't seem to figure out the dimensions even with the saw ruler, might be because I'm new to carpentry, but what are the dimensions? And with the 2 tapered sections, do you mean cutting them slightly shorter then the grate for the material to go over, or does it go over the grate? any help would be very appreciated.

  12. #12
    us
    Jun 2009
    Blue Ridge, South Carolina
    815
    280 times
    Lets see (from my memory) the sluice starts out at 14 inches wide then tapers to 6 1/2 inch wide at the grizzly, then it tapers back up to 10 1/4 inches wide at the end to fit in a 5 gallon bucket. If I had it to do over again, I would probably taper it slightly less, rather more like 7 1/2 inches wide at the grizzly.

    The wire grizzly is flush with the wood it sits against, so the lighter material falls down through the mesh into the chambers and is washed away. There is about 1/2 inch clearance inside the top of the chambers for tailings to exit. Each little fluid bed chamber is about an inch and a half or so deep.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  13. #13
    us
    This is work! It ain't no hobby!

    Feb 2013
    Douglas, AZ
    Loaner MineLab X-Terra 705 Gold Pak
    1,166
    981 times
    Prospecting/Mining and protecting our rights to do so.
    Hey Astro! Silly me... When I first saw the sluice I thought the water flow was going to go the other way! Duh!!! Guess it shows how little sluice work I've done. Cool idea and it looks like it works very well. BTW Nice country out your way. I was in Asheville for a while and loved it there. Would have liked to had more chances to do some gold hunting but at the time it was work, work and then more work.

    Jeff

  14. #14
    us
    Confused

    Feb 2013
    Northern Ca
    37
    3 times
    Prospecting
    Thank you kindly! I have to draw plans out first or I screw myself into a corner, thank you for the dimensions, but as I watch the video over and over again. I can't figure out how you have the grizzly on there, is it screwed to those 1x2s and ten wedged under that steel plate? and I can't see correctly but is that 1/2 pvc? thank you again man, this is some cool stuff you do. and I'm happy to find another enjoyable hobby

  15. #15
    us
    Jul 2010
    256
    53 times
    Nice and very functional! A lot can be done for little expense if one puts their mind to it. Thanks for sharing as it shows people that prospecting can be fun on a small budget.

 

 
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