- Отрасли: 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 crusher enclosed in an iron casing in which a revolving shaft carries swinging arms having a free arc movement of 120 degrees . The rotation of the driving shaft causes the arms to swing out and strike the coal, ore, or other material, which, when sufficiently fine, passes through the grated bottom.
Industry:Mining
A crusher in which the material passes between a moving set of rolls with ribs on their surfaces parallel to the axis of the rolls.
Industry:Mining
A crusher in which the material passes between a moving set of rolls with smooth surfaces.
Industry:Mining
A crusher in which the motion of the upper part of the jaws is like that of the Dodge crusher, while the lower parts of the jaws, of cylindrical surfaces of varying radii, grind the ore between them.
Industry:Mining
A crusher of the same general type as the Blake or Dodge, but the moving jaw has a rolling instead of an oscillating motion.
Industry:Mining
A crusher with a rotating central shaft, carrying a number of hinged hammers that fly out from centrifugal force, crushing the feed against the casing.
Industry:Mining
A crusher with a rotating central shaft, carrying a number of hinged hammers that fly out from centrifugal force, crushing the feed against the casing.
Industry:Mining
A crusher with temporary support foundations, so that it can be moved in sections, or it can be moved along roadways with minimum dismantling.
Industry:Mining
A crushing machine consisting of a rotating cylinder with a corrugated or toothed outer surface that crushes material by pinching it between the teeth and stationary breaking bars. Compare: double-roll crusher.
Industry:Mining
