- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
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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 ...
An inverted container, holding a high concentration of sulfur dioxide gas, used in die casting to cover a pot of molten magnesium to prevent burning.
Industry:Mining
An investigation carried out along certain broad features of a coal or mineral area, with the object of deciding whether the proposition is such as to warrant a detailed or final exploration, which is often costly.
Industry:Mining
An investigation to determine the pressure distribution or pressure losses along consecutive lengths or sections of a ventilation circuit.
Industry:Mining
An inward flow, reaction-type water turbine, in which the runner vanes are so shaped that they are acted on by the water pressure both axially and radially.
Industry:Mining
An iodine pentoxide (Hoolamite) test consists of a glass tube filled with a reagent mixed with fuming sulfuric acid and carried by crushed pumice through which a known volume 1638 of the air to be sampled is discharged from a rubber bulb after preliminary drying. The bulb is squeezed 10 times; the carbon monoxide present changes the color of the reagent from grey to green, and the concentration is obtained by reference to a color chart supplied with the instrument. The instrument reads down to about 0.07% carbon monoxide.
Industry:Mining
An ion exchange process applied in acid-leach slurry from which abrasive particles of sand have been removed. Abbrev., R.I.P.
Industry:Mining
An Irish term for a hole in the ground surface, caused by the falling-in of limestone over a subterranean stream. Compare: sinkhole
Industry:Mining
An iron bar pointed at one end, chisel-edged at the other, used in coal mining.
Industry:Mining
