5 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
Pouring basin
Mining; General mining
A basin on top of a mould to receive the molten metal before it enters the sprue or downgate.
Wilmot jig
Mining; General mining
A basket-type jig, the basket being suspended in a tank of water. Pulsations are effected by moving this basket upward and downward by means of eccentrics. Has been used extensively in the ...
Cheque battery
Mining; General mining
A battery to close the lower part of a chute acting as a cheque to the flow of coal, and as a stopping to keep air in the breasts.
Secondary beam
Mining; General mining
A beam supported off, and transferring loads to, main beams that are themselves carried directly by the walls or columns.
