A conveyor belt is designed to convey ore from an underground mine to surface at a rate of 600t/h. The resulting stockpile has a height of 12m. Given that the angle of repose of the ore is 45o and density is 2.5t/m3.
Calculate:
a) The total tonnage of ore reserved in the stockpile.
b) Time taken to create the stockpile given that the average conveyor efficiency is 0.85.