3 replies to this topic

[laudares]

I need to estimate the amount of water needed for dust suppression at an iron ore transfer point. I know the mass flow rate of material being transferred and the particles distribution. How can I estimate the droplet size distribution needed to capture the airborne particles and the total amount of water needed (based on the necessary droplet population.) Can anyone help me with this?

 

 

 

 

 

[Dazzler]

I suggest you contact a spray system company, as they will have experience in applying their products in various applications and could therefore save you a lot of trial and error.  Look us some well know vendors of spray nozzles.

Dazzler

[laudares]

Thank you Dazzler,

 

This is the point. Our company want to buy a system from a supplier and want to verify the quality before the project execution. We need an estimate of the amount of water to be used for a given application since multiple suppliers are giving different flow rates and operating pressures.

 

For example. We have a transfer point and want to capture fugitive dust. We measured the fugitive dust around this transfer point and know the dust particle concentration and size distribution at this point. The first question is: How to estimate the amount of dust being generated in the transfer point?

 

The second point is: What is the ratio between the dust particle concentration and the drop population?

 

The third question is: Since the collision and capture of a dust particle is an stochastic process is there a way to estimate the capture eficiency for a given spray droplet population? Is there any rule of thumb for this?

Thanks,

[Dazzler]

Laudares,

Apart from further close covering the transfer point so that the dust and turbulent air does not escape as much, you might need to erect some water headers with screw joints to allow easy modifications to add more sprays or different types or perhaps less. You may wish to conserve water and therefore have it automatically or remotely manually actuated to turn on/off.  I'd be sure you do not wish to use too much water and also not to flood the transfer point so that you get caking or blockages.  Good luck with it.  

Dazzler