I have put together the numbers VS the demand to determine the dryer capacity and according to the model we are short on capacity if we go with the 10x15Mt bins and the 4x7Mt.
If we change the bin number to 12x10 and leave the 4x7 it looks ok in the model see below, I have also attached the sheet so you can check the data vs the demand as well, if I have over looked anything let me know..