- 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 ...
Ferrite in steel or cast iron other than that associated with cementite in pearlite.
Industry:Mining
Fibrous nodular lignite which when struck emits an odor like that of truffles. It occurs in large nodular masses inside a normal lignite of Cretaceous age in France.
Industry:Mining
Field name for a drill tripod or derrick lamp, consisting of a metal container with two spouts holding cotton wicks, on which burning oil gives a very yellow light.
Industry:Mining
Figures given on flowsheets to indicate quantities passing various points in plant per unit time, taking account of fluctuations in the rate of supply and composition (as to size and content of impurity), as follows: (1) design capacity, the rate of feed, defined by limits expressing the extent and duration of load variations, at which specific items of plant subject to a performance guarantee must operate continuously and give the guaranteed results on a particular quality of feed; (2) peak design capacity, a rate of feed in excess of the design capacity, which specific items of plant will accept for short periods without fulfilling the performance guarantees given in respect of them; and (3) mechanical maximum capacity, the highest rate of feed at which specific items of equipment, not subject to performance guarantees, will function on the type and quality of feed for which they are supplied.
Industry:Mining
Filling a drill hole with all the explosive that can be crammed into it, except for stemming space at top.
Industry:Mining
Filling a drill hole with cartridges smaller in diameter than the hole, without slitting or tamping them.
Industry:Mining
Filling a mine with material transported by water. Compare: silting; slush. See: flush
Industry:Mining
Filling in which the mined-out area or room is filled immediately after mining out only a small part of the deposit.
Industry:Mining
Filling in which the mined-out rooms are filled later, generally on a large scale and when the neighboring sections are already being mined.
Industry:Mining
Filling material brought from the surface or from some place other than the mine.
Industry:Mining
