- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
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 ...
Iron of comparatively high purity, produced, in the same way as steel, in the open-hearth furnace, but under conditions that keep down the carbon, manganese, and silicon content.
Industry:Mining
On a map or diagram, a line connecting points of equal fixed-carbon content in coal.
Industry:Mining
Jig developed for Mesabi iron ores in which vertical movement of water is produced by low-pressure inflation and deflation of rubber tubes just below screens.
Industry:Mining
Pulsion-suction diaphragm jig for fine material, in which makeup (hydraulic) water is admitted through a rotary valve adjustable as to the portion of jigging cycle over which controlled addition is made. Used in coal preparation for the removal of pyritic sulfur from thickener underflow material prior to its treatment by froth flotation.
Industry:Mining
Equipment fitted on the cage floor to hold the car in position while traveling in the shaft. Spring- or rubber-mounted stops are commonly used.
Industry:Mining
Estimating the value of a point from a set of nearby sample values using kriging. The kriged estimate for a point will usually be quite similar to the kriged estimate for a relatively small block centered on the point, but the computed kriging standard deviation will be higher. When a kriged point happens to coincide with a sampled location, the kriged estimate will equal the sample value.
Industry:Mining
