- 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 ...
Heavy-duty fixed path cone crusher; a variant from the standard cone crusher.
Industry:Mining
Broadly, any comparatively flat area of great extent and elevation; specif. an extensive land region considerably elevated (more than 150 to 300 m in altitude) above the adjacent country or above sea level; it is commonly limited on at least one side by an abrupt descent, has a flat or nearly smooth surface but is often dissected by deep valleys and surmounted by high hills or mountains, and has a large part of its total surface at or near the summit level. A plateau is usually higher and has more noticeable relief than a plain (it often represents an elevated plain), and it is usually higher and more extensive than a mesa; it may be tectonic, residual, or volcanic in origin.
Industry:Mining
Deep-shaft hoisting with two winders, one at the surface and the other at middepth in the shaft. The surface engine winds minerals from the middepth pocket, and the other winds from the pit bottom to the middepth point. The arrangement is often adopted in turned vertical shafts.
Industry:Mining
Commonly used thermometer scale in which the freezing point of water is 32 degrees and the boiling point is 212 degrees . To convert from the Fahrenheit scale to the centigrade or Celsius scale, subtract 32 and multiply by 5/9. Symbol, F.
Industry:Mining
Drilling with part of the weight of the drill string supported by the drill swivel head or suspended on a drilling line, as opposed to drilling with the entire weight of the string imposed on the bit.
Industry:Mining
Metamorphism produced by heat; it is a local, intense type of thermal metamorphism, resulting from unusually high temperatures at the contact of a rock with magma, such as in xenoliths. Compare: igneous metamorphism; hydrometamorphism.
Industry:Mining
On a large scale, sinter plant gas may be cleaned by precipitators with very high efficiencies. The dust is precipitated in a dry state, suitable for pelletizing and feeding back onto the sinter strand.
Industry:Mining
Disturbance of the interval structure of clay or silt; when remolded, such material will lack shearing strength and gain compressibility. In consequence, driven piles are not recommended in certain clays.
Industry:Mining
