Gravity Separation & Concentration Methods

Gravity Separation & Concentration Methods

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Tube densifier. Dyne whihrpool densifier. (1 reply and 1 comment)

6 years ago
Olga 6 years ago

Hello colleagues!

Does anybody has an experience with tube densifiers in a dense medium circuit? The picture of densifier is attached. 

What are the advantages? Is it possible to set up usual thickening hydrocyclones? What are the differences? Who are the main manufacturers besides Multotec? 

Any suggestions will be highly appreciated.Thank you.

6 years ago
richardh 6 years ago
1 like by Olga

Hi Olga

These are normally called pipe densifiers compared to cyclone densifiers (conventional cyclones).

The advantages of these are as a rule of thumb lower medium losses to thee dilute circuit or overflow of these densifiers. You would normally see these in plants using FeSi as medium due to its higher cost/ton. They are generally run in a bank as per your pic, with some on standby as they can be easily blocked if gravel gets into your feed to the densifiers.

On coal circuits here in RSA they use cyclones and say diamond plants they tend to pipe type.

Normal cyclones give as a rule of thumb a thicker underflow density but then "lose" more medium to the overflow.

Some circuits run a combination of cyclones with pipe densifiers, in various combinations, for instance pipe densifier densifying on the dilute medium part of the circuit and the pipe doing it on the correct medium. Or have the two types in series etc.

The Multotec units give good service, but I may be a bit biased on that.

I hope this helps.

6 years ago

Richardh, thank you very much for the reply!

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