- 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 device for measuring the liquid level in sumps and other vessels. It consists of a loop of wire that is encased in a fiber glass protective sheath. The loop is inserted in a sump of 1882 thickener containing a magnetite or ferrosilicon slurry, and the electrical signal given off represents the level of the slurry surrounding the loop.
Industry:Mining
A device for measuring the liquid level in sumps or vessels. It consists of a float, whose vertical height is greater than the level range being measured and whose weight is such that it would sink in the fluid if not supported. It is placed in a float chamber and supported in such a way that as the liquid level rises around the displacer float it creates a buoyant force equal to the weight of the liquid displaced. This force is measured, and 942 since it is proportional to level, the force measurement becomes a level measurement. The device is used on sumps containing high-gravity slurries.
Industry:Mining
A device for measuring the vertical component of gravity, characterized by the use of four pendulums in a single case.
Industry:Mining
A device for mounting on any direct-current mobile mining machine that receives its power through a portable cable. The device cuts off the power from the machine and its trailing cable in the event of a ground fault, short circuit, or break in the cable, and prevents electrical flow as long as the trouble exists.
Industry:Mining
A device for moving railway wagons and locomotives short distances by hand. It consists of a cast-steel wedge-shaped tip with a wood handle. The tip is placed over the rail and under the wagon wheel and the up-and-down movement of the handle exerts sufficient pressure on the wheel to move the wagon.
Industry:Mining
A device for obtaining short-delay blasting in conjunction with the detonating fuse. It consists essentially of two open-ended delay detonators coupled together with flexible neoprene tubing.
Industry:Mining
A device for opening protective equipment or a circuit breaker, operated by a solenoid.
Industry:Mining
A device for overcoming the starting resistance of a conveyor fed by a constant-speed motor. It is used to allow the motor to reach full speed before starting the conveyor.
Industry:Mining
A device for particle size analysis. It consists of (1) a feed vessel or tube, (2) a large hydraulic classifier, (3) an intermediate classifier, and (4) a graduated measuring vessel.
Industry:Mining
