- 行业: 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 ...
A plant group, which is now extinct, that includes the Coniferales (pines and firs) and the Cycadales (cycads). The Cordaites were tall, slender trees that often attained heights of 100 ft (30.5 m). For a considerable height above the ground, the trunk was devoid of branches. The long, straplike leaves now form matted masses among the Coal Measure fossil plants.
Industry:Mining
A plant mounted so that it can be moved over the highways on its own mounting and that performs all the operations of a stationary plant, including crushing, scalping, secondary crushing, screening, washing, and sand separation. Some of these complete plants are mounted on one chassis; others have the more common operations on one chassis with the supplementary equipment on separate portable mountings.
Industry:Mining
A plant or vessel in which water or moisture is removed from fine coal. Artificial drying of fine coal is not often employed. Fine coal is removed from wash water by dewatering classifiers or by vacuum filtration.
Industry:Mining
A plant that incorporates into its structure an insoluble element from the soil, and later, when the plant decays, returns that element to the soil in a soluble form.
Industry:Mining
A plant where raw or run-of-mine coal is washed, graded, and treated to remove impurities and to reduce ash content.
Industry:Mining
A plant where raw or run-of-mine coal is washed, graded, and treated to remove impurities and to reduce ash content.
Industry:Mining
A plastic cement formed by mixing finely ground caustic magnesite with a solution of magnesium chloride.
Industry:Mining
A plastic clay free from iron and devoid of fissility; suitable for modeling or making of pottery or adapted for use on a potter's wheel. It is white after burning.
Industry:Mining
