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Your Mini Gold Concentrator is a very
simple but effective device for the recovery of gold, even in the
hands of the inexperienced.
PROCEED AS FOLLOWS
- Place bucket on a level
surface and fill with water.
- Locate the collection tray in
the bucket and secure tight octopus strap round the three hangers.
- Place sieve on the centre
spindle.
- Half fill the sieve with wash
and break up any lumps by hand.
- Half fill the sieve about 20mm
up the spindle and work the sieve with a firm reciprocating
action. This will agitate the wash and sink the fines into the
collection tray.
- Gently turn the sieve to its
original position and continue reciprocation.
- Completely rotate the sieve
twice in a clockwise direction.
- Raise the sieve about 40mm up
the spindle and repeat operations 5,6 & 7.
- Lift sieve off the spindle and
inspect its contents for nuggets, gemstones, etc. Discard the
residue.
Note: A half turn of the sieve keeps the sieving even. 20
seconds is ample time to put through a half load.
- Add more wash and proceed as
above.
- To recover your gold, remove
the collection tray and transfer the concentrates to a gold pan.
- Replace the collection tray
and pan off the concentrates.
- The bucket will need to be
emptied when the waste has built up to just below the collection
tray.
EXPLANATIONS AND SUGGESTIONS
- Lifting the sieve up the
spindle raises the water in the sieve above the level of water
in the bucket. In returning to its original level the water
strips the fines through the sieve and deposits them in the
collection tray.
- Raising the sieve in two
stages controls the rate of deposit. this allows time for the
stirring bars to perform their function of sinking the gold and
reduces the chances of any being lost.
- When the sieve is rotated
clockwise the helical blade on the bottom performs its function
of scraping unwanted material off the collection tray into the
bottom of the bucket.
- Do not be tempted to overfill
the bucket.
- Keep the bucket topped up but
add water gently because a sudden slurp might displace gold in
the collection tray.
- Clayey wash must be
properly puddled.
- A quick way of checking for
nuggets is to run over the waste heap with a metal detector.
- On a dry field you will need
to take water with you. Use the lidded bucket for this purpose
but take additional water because some will be lost. Stand the
concentrator bucket in a dish and you will be able to recycle
your water.
- Frequency of clean up is a
personal thing but do check occasionally to see how you are
going.
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