hello Crimolvic:

go to metso.com > worldwide leaders in crushers and screening process systems.

I am sure those fine folks would be glad to help you out with your thesis. If not, come back and I will put you in direct contact with some of my close METSO contacts.

BANANA multi-slope screen theory:

Segmented modules that indepently vibrate at various slopes.

The concept is steeper declined slope at the feed end of the units to move the INSURGE of new FEED where the bed depth would be the deepest. and then....

Slightly less steep declined segments as you go down, to slow the FPM travel down and allow for screening the fines out and at the end a much lower slope or even a slight incline to finish off the screening when the bed depth is the least problematic.

If you vibrate the modules individually.........you do not have to deal with the large heavy masses of a one drive system trying to throw say.......`15 to 20 tons of steel with screencloth or urethane on it.

HOPE this helps.......there are many concepts of this design out in the field. Usually fairly wide units also......which increases TPH needs substantially which is typically a critical need with big producers.

Hope this is slightly helpful. George Baker Mod. ■

Hello Christian: METSO should be able to sent you PDF or autocad GENERAL ARRANGEMENT DRAWINGS on a typical banana screen design.

This is not proprietary in nature.

Let me know how you make out..........Sincerely, George ■