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  • 2 Post By Astrobouncer
  • 2 Post By charlotte49er

Thread: About Bazooka gold trap

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  1. #1

    Sep 2012
    Brookings Oregon
    228
    42 times
    All Types Of Treasure Hunting

    About Bazooka gold trap

    I've been thinking about this sluice for a while now. It says theres no need for classifying. But how does it do with small rubble? If it can't push out flakes of gold, how does it push out all them pebbles?

    I have a feeling in my area 2 shovels full will clog that thing

  2. #2
    us
    Jun 2009
    817
    304 times
    On one point, you are exactly right and that's why classification is always the key to great gold recovery. A 2 mesh piece of magnetite will both weigh more and displace far more volume of material then a 100 mesh piece of gold. But put a 100 mesh gold next to 100 mesh quartz and the gold wins every time. That's one reason I put the 4 mesh hardware cloth over mine to keep out the bigger rocks. On the other hand, you dont have to worry about the bazooka clogging unless you have it setup way wrong with too little flow or are in an area that has unusually heavy rocks in the river. Even with the stock design, there will usually be some room in the trap for heavier gold to settle in, especially at first and especially with bigger pieces. And once any gold settles down in the fluid bed, the only way to get it out is to displace it with something heavier. Also the smaller rocks tend to be pushed out and only the big ones left because as the trap fills up with black sand and heavies, the smaller lighter rocks will float on top of the fluid bed and eventually be pushed out with the gangue.

    So you can see the bazooka works pretty good from the factory, but there is always room for improvement. Any piece of recovery equipment should always be tailored to the type of ore you are working. For example if your gangue is much heavier say you are in a place with a lot of cassiterite then you need increased flow, screening, and/or slope to compensate for the heavier concentrate. Likewise a lighter gangue means you could run less of said properties and still do well.

    A bigger problem for me, and what I don't like about the stock bazooka grizzly is it lets in large flat rocks that may only be 1/2 inch wide but also 2 inches long. These rocks then turn sideways and lay flat in the trap and due to their heavier weight they are not pushed out by the fluid coming up from the lower pipes. Fine gold that is entering the traps can then hit these rocks and slide right out over the top with the lighter slurry since it has no place to settle down into the trap. But the 4 mesh hardware cloth zip tied over the trap fixes that so you dont have to worry about it.



    Another fix you can do is use punch plate, which works well also.
    Goodyguy and Lanny in AB like this.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  3. #3
    us
    Author of a book about finding gold in Colorado

    Jan 2012
    Summit County, Colorado
    Grizzly Goldtrap Explorer & Motherlode, Gold Cube with Banker on top, Bazooka Goldtrap sluices, Angus Mackirk Expedition, Gold-n-Sand Xtream Hand pump
    6,750
    10536 times
    Prospecting
    Well said AB!

    All I can say is try it, you'll love it! The grizzly does the classifying for you...as long as you have good flow/drop as you can see in AB's videos.

    Mine it and recycle it!

  4. #4

    Sep 2012
    Brookings Oregon
    228
    42 times
    All Types Of Treasure Hunting
    Hey thanks for the info Astro. I have some 1/4" mesh floating around in the garage some where. I also have some that will only allow sand to fall in but I want to get some flakes too. I'm going to have to make one and find out.
    The reason I asked is because I ran my from my sluice in my swirly bowl. I saw 4 really really small flakes in there but by the time the bowl was finished I was stuck with a hand full of rocks half the size of a copper BB would be and no gold. I have 2 different sized bowls. 1 for bigger flakes and one for dust. The one for dust takes years it feels like so i dont use it much.

    Here is a pic of a guys pan that was panning here in Gold Beach Oregon where I liveClick image for larger version. 

Name:	gold in pan.jpg 
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ID:	731405

  5. #5
    us
    Jun 2011
    Charlotte, NC
    XP DEUS, DetectorPro Pirate Pro & Headhunter Wader, Fisher F2, F4, F75, Tesoro Compadre, Silver Umax, Vaquero, Cortes, Nugget Snoop & Falcon MD20
    252
    51 times
    Metal Detecting
    Click image for larger version. 

Name:	bazooka2.jpg 
Views:	6036 
Size:	29.4 KB 
ID:	732540 This maybe a little small. However, this is a simplfied way of how a Bazooka Gold Trap Works. The dirt, black sands, small gravel and gold drop down through the grating. The bottom tubes create the fluid bed.
    Rdg Sluicer and Joel1316 like this.
    Sporting goods, gold sluice boxes, gold panning, gold prospecting, gold dredges, gold mining equipment, metal detectors, survival gear, survival
    supplies, prepper gear, personal safety devices, in Charlotte, NC.


  6. #6
    us
    Author of a book about finding gold in Colorado

    Jan 2012
    Summit County, Colorado
    Grizzly Goldtrap Explorer & Motherlode, Gold Cube with Banker on top, Bazooka Goldtrap sluices, Angus Mackirk Expedition, Gold-n-Sand Xtream Hand pump
    6,750
    10536 times
    Prospecting
    Very nice and accurate Charlotee49er!

 

 

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