Patent ID: 8985704
Filing Date: 2015-03-24
Classification: E02F,E21F

Abstract:
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.