Particle separation

[distracted]

We are working on a process to separate particulate of different size. The one material is spherical steel 100-300 microns and the other is <50 micron and is a metalic flake.

We want to aerodynamically separate the 2 materials; they are airborne together. We have used a cyclone separator, but that seems to either put too much flake in the bucket for steel or the other way round.

Ideally we would like 100% flake in one bucket and 100% steel in the other.

Does anyone have experience dong this? Suggestions?
P.S. Hope this is the best group.

 

[m777182]

Try to use the ferromagnetic properties of the spherical particles if the metalic flakes are of different material- you did not say that both are made of steel.You did not say what is "too much flakes among spheres". If both kinds of particles are of the same material then look for Hosokawa Micron. They have a good aerodynamic separator with a sharp cut size.Search the web on Hosokawa Micron Separator.
m777182

 

[EdStainless]

Cyclone should work cleanly. You may need to do it in two stages. In the first cut you would dicharge only spheres, but there would still be some sheres in the with the flakes. The second stage would clean it up.
You need to be able to adjust the cyclone, have constant gas flow and particle flow. Cyclones are really only tuned at a single point of operation.
I presume that your cyclones are made from ceramic to minimize wear.

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Corrosion never sleeps, but it can be managed.

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