- 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 ...
A movable tongue or rail for diverting a train from one track to another.
Industry:Mining
A movable wooden scaffold suspended from a crab on the surface, upon which the workers stand when walling or lining a shaft.
Industry:Mining
A movable, intermittent vacuum filter consisting of a series, or basket, of leaves fastened together in such a way that it may be dropped in a pulp tank and kept submerged until a cake is formed; it is then transferred by crane to an adjoining wash-solution tank and washed; the basket is then lifted out of the tank and the cake dropped.
Industry:Mining
A mud formed in lagoons, sounds, or bays, in which there is poor circulation or weak tides. The color is black because of iron sulfides and organic matter.
Industry:Mining
A muffle furnace for roasting ore out of contact with the products of combustion.
Industry:Mining
A muffle furnace of the McDougall type, in which the hearths are separated by suitable flues through which the products of combustion from the fireplace pass.
Industry:Mining
A muffle kiln fired at a temperature between that of enamel and gloss kilns.
Industry:Mining
A muffler that concentrates on suppressing sound waves vibrating 200 to 2,000 times a second--the loudest and most objectionable ones created by rock drills. Because the muffler bypasses the lower frequencies, it does not interfere with the column of air that makes a pneumatic drill function.
Industry:Mining
A muller mill with a horizontal rotating disk bearing on a fixed plate. Gold-bearing material and mercury flow pulpwise between them.
Industry:Mining
