Quote:
Originally Posted by xelasnave
Basically the cement mixer approach. You just keep shoveling material into a mixer with a constant flow of water (or not) and the gold migrates to the bottom.
One metre per day is all you are allowed to process under the law ...that is the limiting factor.
Alex
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That concept of using a cement type unit has been tried many times over the years , it throws out gold !
I made one with a cut down bowl & internal classifier to test it's performance .
Tried every thing a mind could come up with to get it return gold , the design is for mixing stuff with water ' not to collect gold
So moved on with new ideas & models .
See pics of the old converted cement mixer & then the start of next unit .