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Shovel In Mining

Shovel In Mines


Shovel is the most commonly used excavating equipment in opencast mines. It is mounted on crawler.
This machine excavate the rock or ore by digging for its operating base to upward (crown motion) & dump it either on the dumper or railway wagon or on the spoil heap.
Shovel may be electrically operated or diesel operated depending on the mode of transmission.

There are basically two types of shovel used in mining operations.

a)Rope Shovel        b)Hydraulic Shovel

The Main Parts Of Rope Shovel Are:

 







The Main Parts Of Hydraulic Shovel Are:

A shovel's work cycle, or digging cycle, consists of four phases:

a) Digging
b) Dumping
c) Swinging
d) Returning

The digging phase consists of crowding the dipper into the bank, hoisting the dipper to fill it, then retracting the full dipper from the bank. 

The swinging phase occurs once the dipper is clear of the bank both vertically and horizontally. The operator controls the dipper through a planned swing path and dump height until it is suitably positioned over the haul unit (e.g. truck). 

Dumping involves opening the dipper door to dump the load, while maintaining the correct dump height. 

Returning is when the dipper swings back to the bank, and involves lowering the dipper into the track position to close the dipper door.

 Comparison Between Rope Shovel & Hydraulic Shovel




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