Optidry diaphragms are used when the ground material needs to be dried in the mills. It provides a large opening to gas to secure the minimal pressure drop. It also keeps the grinding media in the 1st compartment.
Commerical Name : Optidry
Industries : Cement
Place of use : Ball mills
Technical Specifications:
Flexible structure to absorb dynamic deformation and forces of the mill shell
Limitation of the material projection too far from the diaphragm
No balls enters to drying chamber, thanks to the center cone and its grid.
Key Benefits:
Increase the drying capacity of the mill
Lower wear on the grates, balls and liners  
Decreased damage on the drying chamber lifters.