upload
United States Bureau of Mines
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 ...
In a furnace, a taphole from which the iron is so pasty that it does not run freely.
Industry:Mining
In a graph of particle distribution (screen analysis), a plot in which the abscissa shows the size and the ordinate shows the percentage of sample of that size.
Industry:Mining
In a heat exchanger, where the fluid absorbing heat and the fluid losing heat are so directed that lower and higher temperature of the one is adjacent to the lower and higher temperature of the other, respectively. Ordinarily, the one fluid is flowing in the opposite direction from the other, hence the term.
Industry:Mining
In a hydrocyclone, the discharge from the apex in spray form, showing that the cyclone is not overloaded.
Industry:Mining
In a ladder ditcher, digging with the boom not centered in the machine.
Industry:Mining
In a legal sense, a failure upon the part of a mine operator to observe for the protection of the interests of the miner that degree of care, precaution, and vigilance that the circumstances justly demand, whereby the miner suffers injury.
Industry:Mining
In a method of interpretation of refraction seismic records where the arrival times are plotted against shot-detector distances, if some of the paths from shot point to detector include a high-speed segment, the corresponding travel times will not fall on a smooth curve. The departure in this case from the curve is called a time lead, and it is proportional to the horizontal extent of the high-speed segment. Used in salt-dome exploration.
Industry:Mining
In a mine drift, the direction of predominant water movement.
Industry:Mining
In a mine shaft, a specially substantial set of timbers used at intervals to support the linings and ordinary bearers. They are tied into the surrounding rock to give extra strength.
Industry:Mining
In a mine ventilation system, the cumulative energy consumption is called the mine head. A head is in reality a pressure difference, determined in accordance with Bernoulli's principle.
Industry:Mining