- 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 machine for removing the maximum amount of liquid from a mixture of liquid and finally divided solids. The solids settle out on the bottom of the thickener tank as a sludge, and the clear liquid overflows at the top of the tank. It is used for processing chemical, metallurgical, and coal-washing slurries.
Industry:Mining
A machine for sifting the tailings and collecting the gold from the detritus after it has passed through the washer.
Industry:Mining
A machine for the final stage of size reduction; i.e., to -100 mesh. See: fine grinding; pulverizer.
Industry:Mining
A machine for the multishot firing of series-connected detonators in tunneling and quarrying.
Industry:Mining
A machine for the size classification of the fine ceramic powders, such as china clay; the velocity of an air current controls the size of particle classified.
Industry:Mining
A machine for the wet or dry fine crushing of ore or other material. The three main types are the ball, rod, and tube mills. The mill consists of a rotating cylindrical drum; the ore enters one hollow trunnion and the finished product leaves the other. Modern practice indicates ball mill feeds of 1/2 in, 3/4 in, and 1 in (1.27 cm, 1.91 cm, and 2.54 cm) for hard, medium, and soft ores respectively and the products range from 35 to 200 mesh and finer.
Industry:Mining
A machine for washing clay and earth out of earthy brown hematite ores. The log washer is a common type.
Industry:Mining
A machine for withdrawing steel arches by means of a controlled hydraulic system instead of drawing them by hand or winches.
Industry:Mining
