Mining conveyors are large machines used to move ore or waste materials generated by mining operations. They can carry hundreds of thousands of tons of material per day over long distances. They are efficient and adaptable to changing conditions at the mine site. Some specialized types of conveyors can raise or lower materials at steep angles. Tunnel boring machines also have built-in mining conveyor systems to carry away waste material.
A mining conveyor is a type of machine used to move ore or waste materials generated by mining operations. These types of conveyors, while similar to smaller conveyor machines, are much larger and designed to carry very large loads. Some types of mining conveyors can carry hundreds of thousands of tons of ore per day over long distances, in some cases more than a mile (1.6 km). A mining conveyor is 4.7 miles (7.5 km) long. Mining conveyors are typically of the belt type, but other types are possible.
The mining industry relies on mine hauling machinery to quickly and efficiently move huge quantities of ore and waste materials, often over long distances. These machines are much more efficient than traditional means of transportation and can deliver a continuous flow of ore to processing plants, refineries or distribution stations. Mine conveyors are fairly easy to modify and move as needed, adapting to changing conditions at the mine site.
Not all mining haulers are of the extremely long, overland type and could be much shorter. Many mines with on-site processing plants use mining conveyors to move ore or waste materials from the mine to other facilities in or adjacent to the mine site. Many of these, while built to withstand extremely heavy use, can be much shorter than huge overland haulers.
High angle mining conveyors are a specialized type of mining conveyor designed to raise or lower materials at a steep angle. These types of conveyors can be used in open pit mines, for example, to lift material from the mine floor to the rim. Sandwich conveyors use belts under and over the material being moved, a configuration that allows for extreme angles and curves in the conveyor’s path.
While many conveyors have flat surfaces, a typical mining conveyor has a bowl-shaped cross section, with sides sloping upward. This increases the amount of material the conveyor can hold per linear unit. Such conveyors have rollers directly under the belt and also on the sides of the belt.
Some tunnel boring machines, such as the huge machines used to tunnel under the English Channel, have their own built-in mining conveyor systems. These systems are designed to carry away the waste material created by the tunneling process. These conveyors begin at the front of the machine and actually extend through the center of the machine, carrying waste material away, sometimes for 2 miles (3.2 km) or more, where it is transferred to another conveyor or other form of transport for removal from the tunnel.
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