- 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 ...
The distance of slump or slag in a long string of rods when released from the drill chuck.
Industry:Mining
The distance or separation of formerly adjacent beds on either side of a fault surface, measured along the dip of the fault. Compare: dip slip
Industry:Mining
The distance or width between the inner edges of the heads of the rails; (1) in coal mining, the rail gage for tub and car tracks ranges from 2 to 3 ft (0.6 to 0.9 m), and 2-1/3 ft (0.7 m) is considered a satisfactory compromise; (2) the standard gage for railway tracks is 4 ft, 8-1/2 in (1.44 m) and, (3) in metal mining, the rail gage ranges from 1-1/2 to 2-1/2 ft (0.46 to 0.76 m).
Industry:Mining
The distillation of solid substances accompanied by their decomposition. The destructive distillation of coal results in the production of coke, tar products, ammonia, gas, etc.
Industry:Mining
The division of an opening in a mine by an airtight wall into two sides; one side is used as an air intake, the other side as a return.
Industry:Mining
The Dow electrolytic cell is a steel shell about 16 ft (4.88 m) long, 5 ft (1.52 m) wide, and 6 ft (1.83 m) deep. The electrolyte contains about 60% NaCl, 15% CaCl<sub>2</sub>, and 25% MgCl<sub>2</sub>; it is maintained at a temperature of 700 to 750 degrees C by controlled firing underneath the cell.
Industry:Mining
The downward pinching-out or termination of an orebody, either structurally or by economic grade.
Industry:Mining
The downward slippage of a conveyor on an inclined face. With powered supports, this movement is likely to cause ram damage. Anchor stations are necessary to arrest conveyor creep.
Industry:Mining
The draft produced by a blower, as by blowing in air beneath a fire or drawing out the gases from above it. A forced draft.
Industry:Mining
