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Continuous-extraction mining system

  • US 8,985,704 B2
  • Filed: 01/11/2013
  • Issued: 03/24/2015
  • Est. Priority Date: 07/09/2010
  • Status: Expired due to Fees
First Claim
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1. A material extraction system for an underground mine, the mine including a roadway entry and a draw-bell entry intersecting the roadway entry and affording access to a draw-bell, the system comprising:

  • a loader movable from the roadway entry into the draw-bell entry for removing material from the draw-bell;

    a mobile sizer coupled to the loader for sizing the removed material;

    a material collector operable to collect the sized material, the material collector having a loading end and a discharge end, and a material transport device extending therebetween; and

    a shuttle car operable to receive the collected material from the material collector, the shuttle car being movable along the roadway entry for transferring the collected material so as to facilitate a substantially continuous extraction of the material,wherein the sizer is configured to size the removed material on a substantially continuous basis by receiving removed material from a feed conveyor on the loader and discharging the sized material to the material collector with a discharge conveyor,wherein the material collector is operable as a buffer to hold the sized material until the shuttle car is in a position relative to the material collector to receive the collected material from the material collector.

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