Last Post 21 Oct 2016 09:09 AM by  ADAM ANDREWS
Folding Sluice Box Classifier
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ADAM ANDREWS
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23 Aug 2016 03:01 PM

        Hi everybody,

     

      I made a cheap inexpensive classifier for a folding sluice box. It's made from a $3 IKEA strainer and a Dollar Store strainer with Home Depot plexi-glass, and Epoxy.

     

      The main reason I did this is because the folding sluice box's load up with 1/2" rocks and they stay loaded up. So 1/4" or smaller is best. My classifier is in the water so it rinses all the rocks and materials. The first grate (Grizzly) puts the bigger rocks in the front to be rinsed (Since Gold sticks to bigger rocks). The Orange strainer rinses the smaller rocks...And don't forget to check the classifier before emptying...See pictures.

     

    Adam A

     

    ADAM ANDREWS
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    23 Aug 2016 03:02 PM

    pic #2

     

    ADAM ANDREWS
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    23 Aug 2016 03:03 PM

      Pic #3

     

    ADAM ANDREWS
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    23 Aug 2016 03:04 PM

       Pic #4

     

    ADAM ANDREWS
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    23 Aug 2016 03:07 PM

      Pic #5

     

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    23 Aug 2016 03:08 PM

       Pic #6

     

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    23 Aug 2016 03:09 PM

       Pic #7

     

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    23 Aug 2016 03:10 PM

        Pic #8

     

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    23 Aug 2016 03:13 PM

       Pic #9

     

    ADAM ANDREWS
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    23 Aug 2016 03:16 PM

       Pic #10 you never know what kinda Gold you find unless you go out and dig

     

     

    ADAM ANDREWS
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    07 Sep 2016 03:45 PM

       Here's a few pics of the classifier in the San Gabriel Mtn's. east fork river. It works but needs a slight modification to lower the whole thing farther down into the water...

     

    ADAM ANDREWS
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    07 Sep 2016 03:49 PM

       This pic shows the bigger rocks that go into the forward strainer for rinsing the Gold off...

     

    ADAM ANDREWS
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    07 Sep 2016 03:54 PM

       This pic shows the smaller rocks getting rinsed for Gold in the orange strainer...

     

     

     

    ADAM ANDREWS
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    07 Sep 2016 03:57 PM

      Here's a look in the folding sluice box, the pictures don't show it but there's Gold in there...

     

    ADAM ANDREWS
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    07 Sep 2016 04:10 PM

       Here's the Labor Day weekend's Gold...

     

    ADAM ANDREWS
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    13 Sep 2016 07:37 PM

      The homemade classifier works but it's as much work as wet classifying with a bucket & classifier. But I'll try it again after I make a couple of modifications to lower it into the river a little more. More fun next week.

    Travis Nix
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    17 Oct 2016 04:01 PM

    so I think its a great idea, if you can set it up to run faster or less maint.. and a few thoughts I had when reading your post and looking at the pics were...

    make the basket so you can empty it without flipping the whole sluice. it looks attached to me but it just might be the pics.. But a quick basket flip (after a check for nuggets)

    and you are cleaned out ready for another run of material..

    second I think if you could set up a way to help wash the material in the basket with out a pump it would help you go smoother..

    so if you did set it lower or added a ramp mid basket to force more water to wash the material.

    drill some holes in the sides of your black catch basket so it doesn't block the flow of water going to the orange basket

    I think the more flow you can get through the basket the faster  it will solidify  the material and go through the sluice better.

      

    just a few thoughts but I think you are on to a good idea

    ADAM ANDREWS
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    17 Oct 2016 05:23 PM

      Hey Travis, I really thought about your ideas & your right. So for sure I will drill those holes to get more water flowing through both baskets. This is just a fun experiment with really cheap Ikea & Dollar Store stuff. Modifications (most of the time) make experimental stuff work right.

     

     

        I think Travis is also right about having to flip the whole basket. It's a heavy problem & it should have an easier way to dump the tailings. It's a toss up between wet classifying in a bucket & my idea because it's about the same amount of work. Wet classifying and rinsing bigger rocks is what it's all about. I once saw a guy rinsing big rocks for hours, these rocks were whatever he could fit & rinse in a 5 gal. bucket. He said he got Gold doing that, but it looks like a workout.

    Travis Nix
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    18 Oct 2016 02:16 PM
    if you follow through with the idea and add holes to the baskets the current of the water will wash the rocks for you while dropping all the smaller stuff down into the sluice. so you are taking a few steps out by doing it this way.
    ==you are not having to pre classify before you toss the material into the sluice
    ==you are not having to wait for the material to liquefy before it goes down the sluice because it wont leave the basket until it has broken down small enough

    all you really have to do is shovel material into the basket and dump once in a while.. good experiment and idea. toss a pat. on it and sell your idea
    ADAM ANDREWS
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    18 Oct 2016 04:40 PM

       I'd like to build an aluminum version with a hinged basket or just channel the tailings out the sides maybe? Will see.

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