Dear all

I am going to modify the louvre ring of my VRM, cement grinding. I don't know which case as following is better

  1. Angle of louvre ring is the same way of movement of separator, grinding table is reverse.
  2. Grinding table, separator are the same way of turning, angle of louvre ring is also the same way.

What is the best angle of louvre ring for cement grinding? 

If you have any experience regarding this, please advise me with thanks.

Regards

TamNguyen