Gravity Separation & Concentration Methods

Gravity Separation & Concentration Methods2017-04-04T06:57:23-04:00
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Destoning carbon (5 replies)

Peter J
5 months ago
Peter J 5 months ago

What equipment is best to separate mill oversize from carbon after a disastrous mill run put about 200tons of grit into CIP circuit?

I once used a spiral wheel but it would be very slow at this tonnage:  Would an agricultural grain destoner work?

SmartDog
5 months ago
SmartDog 5 months ago

What size is the grit in comparison to the carbon?  If there is a significant enough difference you might be able to separate using screens.  If not either flotation or gravity separating may be needed.

Peter J
5 months ago
Peter J 5 months ago

Size separation is out- there is total size overlap, colorimetic may work but I was wondering if others on this blog have used gravity devices and what their experience was.  Wet carbon has an SG about 1.3 and the rock chips are around 2.9.

Todd H
5 months ago
Todd H 5 months ago

I had a recent project where they had the same issue and they used a spiral classifier just before stripping to clean the carbon.  You can also use elutriation column but that is going to be messy with a lot of water.

 

Regards

Todd Harvey - Global Resource Engineering http://www.global-resource-eng.com

rob riggir
5 months ago
rob riggir 5 months ago

Hi Peter - any simple gravity separation device that you can get your hands on will do the job for you. An elutriator will also work, but is a bit more complex.

Regards,

Rob

 

SIMetallurgist
1 month ago
SIMetallurgist 1 month ago

We use a coal spiral to separate grit and carbon. Our ore SG in 2.6 so similar to yours.

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