- 産業: 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 conveyor using steel wire ropes to take the tensile pull, which in a conventional conveyor is taken by the belt. Two-stranded steel ropes, one on either side of the conveyor, are used for this purpose. The belt sits on and is supported across the two ropes by means of rubber shoe forms along the belt edges. These belts can be of long lengths, high capacities, and high lifts.
Industry:Mining
A cooling system in which water, received from a constantly available supply, such as a well or water system, is passed directly over the cooling surfaces of the rectifier and discharged.
Industry:Mining
A copper- or nickel-refining furnace, in which blister copper or impure nickel is refined.
Industry:Mining
A copyrighted, confusing name for an imitation of hematite. Usually in the form of an imitation cuvette. Apparently an artificially processed friable mineral or other substance. Breaks easily. Mohs hardness, about 6.5; sp gr, 4.8; streak, black.
Industry:Mining
A core barrel designed so that core tends to float within the barrel when the fluid is circulated down the outside of the rods and returned to the surface inside the rods.
Industry:Mining
A core barrel having a device in its head part that closes and stops the flow of drillcirculation liquid when a core block occurs in the inner tube of the core barrel.
Industry:Mining
A core barrel or drill rod that does not oscillate or vibrate when rotated at high speed is said to be dead true.
Industry:Mining
A core barrel with an inner tube to hold the core. The inner tube does not rotate during drilling, thereby giving a better core recovery.
Industry:Mining
A core barrel with an inner tube to hold the core. The inner tube does not rotate during drilling, thereby giving a better core recovery.
Industry:Mining
