Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide)

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Flotation Circuit - Blower Sizing (2 replies)

Gene Cheeseman
9 months ago
Gene Cheeseman 9 months ago

I am currently working on the design of a small 400 t/d gold flotation circuit that will consist of (28)  DR24 equivalent 50 ft3 SubA flotation cells. (inclusive of rougher, scavenger, & cleaner circuits)

What type of blower is best for this kind of small plant and how do I go about sizing it?  What is the typical discharge pressure range used in these kind of cells? Is it OK to use one large blower or is it better to have a dedicated blower for each circuit?


Thanks in advance.

9 months ago
SmartDog 9 months ago

In general you are looking at an airflow of 50 to 100 CFM per cell at a pressure of 1 to 2 (max) psig.  A low pressure blower can general suffice.  

While some users do like having a blower for each cell, this is more common on very large cells.  But even then the trend is to a common blower (often with a back up spare).


9 months ago
BrantT 9 months ago

Hi Gene,

I'm in a similar boat as yourself in setting up a 250t/day gold float plant using DR24 Sub-A's.  Even though these cells are self-aerating, i would like to add air to each cell to provide some added control.  How did you add air to these cells?

And thank you Smartdog for the info on LP air.  

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