- 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 device, usually automatic, for rapidly and frequently breaking and making an electric circuit, as in an induction coil.
Industry:Mining
A device, usually mounted in the winding engine house, which gives visual indication of the signals received from the banksman and the onsetter to regulate the movement of conveyances in a shaft, and that retains the indication until cancelled.
Industry:Mining
A diagonal brace designed to resist wind or other horizontal force acting on a structural framework.
Industry:Mining
A diagonal brace or tie bar to stiffen or prevent movement of a structural component.
Industry:Mining
A diagram indicating, preferably by symbols, the units of plant to be used in the various operational steps carried out within a coal-preparation plant.
Industry:Mining
A diagram of the various stages in the treatment of the raw coal in a preparation plant, usually either a process flowsheet or an equipment flowsheet.
Industry:Mining
A diagram showing the progress of material through a preparation or treatment plant. It shows the crushing, screening, cleaning, or refining processes to which the material is subjected from the run-of-mine state to the clean and sized products. The size range at the various stages may also be shown.
Industry:Mining
A diagram to show the observed geological structure on a vertical face or, more commonly, to show the inferred geological structure as it would appear on the side of a vertical trench cut into the earth. The vertical scale is often exaggerated.
Industry:Mining
A diagram which shows the proportion of winds blowing from each of the main points of a compass at a given locality, recorded over a long period. The prevailing wind with its average strength is thereby revealed at a glance.
Industry:Mining
