at the end of the tube are wheels, or generally, the tube itself is wheeled,

while the conveyor belt and its containers are protected inside the tube.

but can there be a conveyor belt that is not rigid?

able to follow the drilling machine?

 

practicality over machines that move in and pick up,

and return to designated area to pile up the minerals?

 

rather in fluid motion due to the conveyor belt...

saving time....?