Martijn
Well-known member
Visible gold and you're selling it? Endless supply!
If i found something like that, i would be panning, and ordering bigger equipment from the profits.
And be very silent about it.
Wanting to sell my placered black sand
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If i found something like that, i would be panning, and ordering bigger equipment from the profits.
And be very silent about it.
Back in the stone ages, well over 30 years ago, when I lived at Fort Irwin, there was a small company near Victorville that was making relatively small separators based on those principles. It is possible that someone could still be doing so.
Time for more coffee.
The design looks like a standard eddy current separator. V shaped pattern of magnets of alternating polarity rotating at high speed under a thin fiberglass roller.
It creates an electrical eddy current in the conductive particles repelling them from the magnetic pulley. The magnetics stuck and were carried around the pulley and were dropped underneath as it traveled away from the magnetic pulley.
The scrap yard I worked at 30 years ago bought
a 42” wide unit and put it in the air separated waste stream from their 2500 horse power scrap shredder destined for the landfill.
It recovered several hundred pounds of mostly aluminum a day. After a few years it was retired and used as a stand alone unit.
Most memorable was decking from an aluminum street car bridge from Pittsburgh. The pedestrian walkway was paved with aluminum expanded metal embedded in epoxy.
No one wanted the material. We ran it through the shredder separately then the separator. It produced a near perfect separation of the aluminum. Was also used when the company closed its ferrous metals facility after 70 years. They dug up several feet of the surface and ran that material recover a tremendous amount of non ferrous material.
It creates an electrical eddy current in the conductive particles repelling them from the magnetic pulley. The magnetics stuck and were carried around the pulley and were dropped underneath as it traveled away from the magnetic pulley.
The scrap yard I worked at 30 years ago bought
a 42” wide unit and put it in the air separated waste stream from their 2500 horse power scrap shredder destined for the landfill.
It recovered several hundred pounds of mostly aluminum a day. After a few years it was retired and used as a stand alone unit.
Most memorable was decking from an aluminum street car bridge from Pittsburgh. The pedestrian walkway was paved with aluminum expanded metal embedded in epoxy.
No one wanted the material. We ran it through the shredder separately then the separator. It produced a near perfect separation of the aluminum. Was also used when the company closed its ferrous metals facility after 70 years. They dug up several feet of the surface and ran that material recover a tremendous amount of non ferrous material.
