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Homemade Concentrator Bowl

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Homemade Concentrator Bowl

Postby jackgold » Fri Aug 29, 2008 12:15 pm

Hi all! At the last meeting Sanman Brought several of his toys for us to veiw. I thought it was awesome.

Sanman let me borrow his concentrator bowl. Now that I've had a chance to run it several hours I thought I'd give a report about it.

I studied for a while this morning. Then I set it up. I made sure it was level on all sides. Then put the water to it. I think it will match just about anything out there on the market. I ran some -30 through it first. It did pretty good. Although it did leave a little of the heaviest material,It did better than I thought it would.

Then I ran some smaller. It did very good with that material.
I must be pretty good at panning because out of about 1 gallon of material I only found about 5 pieces of gold in all that.

Heres a few shots of it operating. Enjoy!

One thing I didn't like about is it takes a lot of time.

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Postby buccaneer » Fri Aug 29, 2008 1:08 pm

It's just a machine. Where's the gold that came from it. :roll:
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Postby jackgold » Fri Aug 29, 2008 1:15 pm

In a snuffer bottle! :shock:
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Postby Dragos » Fri Aug 29, 2008 3:51 pm

Ok What's the blue in the bottom?
Let's see some diagrams or something.
:)
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Postby sanman » Fri Aug 29, 2008 4:17 pm

It's a cutting board.
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Postby rock_bustin » Fri Aug 29, 2008 4:19 pm

Jack,

Has anybody ever tried to run a "Blue Bowl" off the Whip Hose
fitting on many Dredges and Combos ?

I mean you'd need a spigot to regulate flow but if you can hook a
basic garden hose to it you can hook a spigot or shut-off valve to it.
Then you could sit there in all your glory at the creek and work your
cons thru as you please after initial clean-up.

Theoretically, a Two-Man Team could be Sucking creek at one end
while Number 2 Guy is running his cons from the last clean-up thru
at the other end. Hypothetical - But have you ever seen it done?

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Postby jackgold » Fri Aug 29, 2008 4:24 pm

You could do that Rock. As long as you have it set up level. I used a 500 gph pump and it did great. Plus I think the person that runs the cons would have the bad end of the stick. It takes time. You can't run it wide open. If you do you will lose a lot of gold.

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Postby rock_bustin » Fri Aug 29, 2008 6:01 pm

Yeah, man. Not my first choice of chores to be sure!
It was just a thought.


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Postby Bobtail » Fri Aug 29, 2008 9:41 pm

RB

you would also have to classifer the cons down to 30 mesh or lower
for it to work
anything above 30 mesh your heavys would build up and you would loose gold and it' takes a lot of time
TOM
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Postby rock_bustin » Fri Aug 29, 2008 11:11 pm

Another good point. Guess I'll let that go,..............

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Postby sanman » Sat Aug 30, 2008 8:11 am

Dragos, check this site for more info on this bowl.


http://au-prospecting.com/gold/viewtopic.php?t=2384
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Postby Dragos » Sat Aug 30, 2008 8:07 pm

Thanks for the Link Sanman
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Postby pacomdiver » Sun Sep 28, 2008 9:30 am

thanks for the info, im gonna make one up this weekend
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Re: Homemade Concentrator Bowl

Postby russau » Thu Jan 22, 2009 7:56 am

using a blue bowl or a keene green bowl while running the dredge isnt a good idea, because the movement of the water/dredge and the vibrations from the engine and the potential of water sureges in the pressure, would cause the effectivness of the bowls tobe sqwat!
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Re: Homemade Concentrator Bowl

Postby woodchuck » Thu Jan 22, 2009 9:58 am

In my opinion the blue/green/Sanman bowl is not creekside equipiment, but instead a job done at home at your pace with additional accessories such as a cold beer. To get the bowls to work efficiently they must be set up correctly, which can be time consuming, and the material must be classified well. This time could be much better spent finding gold. 8)


CAUTION !!!!!

The cold beer is meant as a refreshment for the handler of the bowl.
Using beer in bowl can cuase foaming, and elevation of material, thus
possibly leading to the loss of precious metals.

WARNING !!!!!!

Consuming too many beers could cuase sudden lapse of balance cuasing
said handler to become dizzy from watching water go round and round in
bowl, which may lead to collapse onto bowl/material leading to loss of precious
metals.
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