10 Terms
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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
Primary blast
Mining; General mining
A blast used to fragment and displace material from its original position to facilitate subsequent handling and crushing.
Smelting furnace
Mining; General mining
A blast furnace, reverberatory furnace, or electric furnace in which ore is smelted for the separation of a metal.
Sump shot
Mining; General mining
A blast made in a shaft that is being sunk, to make a collecting place for water.
Condenser-discharge blasting machine
Mining; General mining
A blasting machine that uses batteries or magnets to energise one or more condensers (capacitors) whose stored energy is released into a blasting circuit, to initiate detonators.
Capacitor-discharge blasting machine
Mining; General mining
A blasting machine in which electrical energy, stored in a capacitor, is discharged into a blasting circuit containing electric detonators.
Toehole
Mining; General mining
A blasting hole, usually drilled horizontally or at a slight inclination into the base of a bank, bench, or slope of a quarry or open pit mine.
