Conveyor belts are useful for moving dry bulk cargo. Examples of dry bulk cargo are wheat, coal, minerals and woodchips. This material is moved from rail or truck to storage and stockpiled on a wharf. When a ship arrives at a port the cargo must be quickly transported to the ship's holds (storage area inside a ship).
When a ship arrives at its destination the bulk cargo needs to be removed from the ship's holds and moved to a new storage area.
In most dry bulk ports conveyor belts are enclosed. This prevents the cargo dust from blowing around the port and over surrounding homes.
If there is dust from loading and unloading cargo it can be a major problem. Ports take action to make sure this does not happen.
Some conveyor belts can be moved around so that they can be used to service different ships and different cargoes,