9 Terms
Home > Industry/Domain > Mining > Mineral mining
Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
Belt cleaner
Mining; General mining
A device attached to a belt conveyor to clean or remove dirt or coal dust from the belt surface. Rotary bristle brushes are sometimes used, driven either by gearing from the conveyor or by an ...
Size selector
Mining; General mining
A device attached to the intake of a dust-sampling instrument to remove the bulk of the particles above 5 to 10 mu m in size; thus the resulting sample is more representative of the health-hazard ...
Visual indicator
Mining; General mining
A device by which the winding or haulage engineman can see on a dial or panel the position of the cages in a shaft or the journey on the haulage plane.
Ruble hydraulic elevator
Mining; General mining
A device by which coarse material in placer gravel is separated from the fines and elevated onto a dump.
Taper-type dropper
Mining; General mining
A device by which straight-type wedge can be attached to a diamond-drill rod, lowered, and set in a borehole.
