- 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 screen used to prevent the entry into a machine of large particles that might interfere with its operation.
Industry:Mining
A screen with two or more superimposed screening surfaces mounted rigidly within a common frame.
Industry:Mining
A screening machine of the trommel class, rotating on rollers that support the tube. There are radial elevating ribs to prevent wear of screen cloth and to elevate the oversize. Unscreened material is delivered on the inside screen surface, undersize passes through, and oversize is elevated and discharged into a separate launder.
Industry:Mining
A screening machine, utilizing inclined supports, developed in southern Europe for screening small sizes of ore and sand. The wooden screen frame is set horizontally and supported on flexible wooden staves inclined at about 65 degrees from the horizontal. The connecting rod also is inclined to the screen frame, so as to be approx. at right angles to the supports.
Industry:Mining
A screening medium mounted in a rectangular frame, supported in a horizontal or slightly inclined position, and reciprocated longitudinally by a crank or eccentric and connecting rod. The unique feature that differentiates the shaker from all other screens is that the load is made to travel over the screening medium by the shaking motion of the screen.
Industry:Mining
A screening shaker with flexible wooden hangers and flexible drive arms; used for sizing anthracite.
Industry:Mining
A screw conveyor fitted at the bottom of some washboxes to collect the fine reject which has passed through the apertures in the screen plate.
Industry:Mining
A screw conveyor in which the tubular casing rotates at a different speed or in an opposite direction to the conveyor screw.
Industry:Mining
A screw conveyor that conveys in a substantially vertical path.
Industry:Mining
A screw device, attached to a longwall coal cutter, for removing the holings and depositing them either in the track of the machine or at the side clear of the face. It is designed in two types: end discharge and side discharge.
Industry:Mining
