Engineering Considerations
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Although not an actual mining
method, the use of slushers for removing ore from drawpoints and pillar stopes was common
in the past. A
slusher is essentially a double drum hoist. Slushers may have either electric or
compressed air motors of 5 to 125 hp. |
One cable of the slusher is
attached to the front of the scraper so that it can be pulled towards the slusher and an
orepass. The other cable goes around a block securely fastened in the far end if the
slusher drift or pillar and is attached to the back of the scraper. Pulling this cable
brings the bucket toward the end of the drift or pillar for another load. As the scraper
is dragged across the muck pile, the ore is pulled into an ore pass or into an ore car. |
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