- 行业: Mining
- Number of terms: 33118
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The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A stationary inclined or curved panel, commonly made of wedgewire, which is used to remove fines and a large proportion of water from a suspension of coal in water.
Industry:Mining
A stationary screen constructed in the form of an arc of a circle and arranged as a chute over which the clean coal from a cyclone washer passes to the orthodox rinsing screen. In the United States, the bent screen is used in magnetite recovery from cyclone washers.
Industry:Mining
A stationary, intermittent filter in which the leaves are suspended vertically in a cylindrical vessel set on a considerable incline. The leaves are therefore ellipses. The slime cake is discharged by introducing air and water into the interior of the leaf. There is also a Burt filter of the continuous-rotating-drum type.
Industry:Mining
A statistical measure (where zero is impossibility and one is certainty) of the likelihood of occurrence of an event.
Industry:Mining
A statistical measure of the correlation between two variables. In geostatistics, covariance is usually treated as the simple inverse of the variogram, computed as the overall sample variance minus the variogram value. These covariance values, rather than variogram values, are actually used in kriging matrix equations for greater computational efficiency.
Industry:Mining
A statistical term referring to saleable coal, less colliery consumption and coal supplied to employees.
Industry:Mining
A steam engine used in excavating and for digging and raising stones and gravel for ballast.
Industry:Mining
A steam hammer, having the head attached to the piston rod, and operated by the direct force of the steam.
Industry:Mining
A steam-heating system operating at pressure very near that of the atmosphere.
Industry:Mining
