I am having a mill of double chamber with VRMP/Pregrinder.In pregrinder only clinker is fed and other componets Gypsum and flyash has been fed into the mill inlet.The final product of VRMP/Pregrinder has dirctly fed into the mill discharge elevator (into the dynamic separator).The gypsum size which we are getting from different resourses is varied from 5inches to 2mm and we are not having any possibility to fed gypsum into the VRMP/pregrinder.The grinding media pattern we started in 1st chamber from 70mm to 40mm and in 2nd chamber 30mm to 17mm.
The mill details are:-
| Meters Dia | Ist Chamber | Iind Chamber | Total Length |
| 3.80 | 3.43 | 8.02 | 12.50 |
The main drive motor capacity:-2500KW
The average Mill Output:-134 TPH in PPC
The average Mill Output:-115 TPH in OPC 53grade
We want to increrase teh mill output atleast by 8-10% in PPC
Can any one suggest me the best Grinding Media Pattern considering the above mentioned gypsum size problem?????????
Now a days we are using importand gypsum from Pakinstan/Iron (Purity >90%).
Replay me as soon as possible........
Regards
Pankaj Kumar