- 업종: 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 hydraulic cement produced by pulverizing and then heating naturally occurring rock (cement rock) containing appropriate proportions of limestone, clay, magnesia, and iron. Ignition temperatures are usually lower than for portland cement. Final pulverizing is necessary as with portland cement.
Industry:Mining
A hydraulic classifier similar to a thickener, but differs in that the current carries the fine material into the overflow; used to make separations at very fine particle size.
Industry:Mining
A hydraulic cylinder in which fluid can be supplied to either end, so the piston can be moved by power in two directions.
Industry:Mining
A hydraulic cylinder in which fluid can be supplied to either end, so the piston can be moved by power in two directions.
Industry:Mining
A hydraulic cylinder in which fluid is supplied to one end so that the piston can be moved only one way by power.
Industry:Mining
A hydraulic cylinder in which fluid is supplied to one end so that the piston can be moved only one way by power.
Industry:Mining
A hydraulic dredge in which the suction action is augmented by a rotating propeller that operates at the point of suction. The cutterhead performs two functions: it cuts into and loosens compacted soils and soft rock such as coral, and it increases dredge capacity by channeling the soils into the end of the suction pipe. The efficiency of a dredge is based on its capacity to handle soils rather than water, and the cutterhead serves to maintain an optimum ratio of about 1 ft<sub>3</sub>(0.028 m<sub>3</sub>) of soil handled per 5 ft<sub>3</sub>(0.14 m<sub>3</sub>) of water.
Industry:Mining
A hydraulic dredge that operates in cycles, alternately filling at a dredge site and traveling to and from a disposal or offloading site.
Industry:Mining
