Mining method and apparatus

Details Mining method and apparatus Mining method and apparatus

1980-02-25

1981-01-27

Nase, Jeffrey V.

Conveyors: fluid current

With diverse power-driven conveyor

Endless

406150, 406198, 299 18, 299 19, B65G 5104

Patent

active

042472296

ABSTRACT:
An underground mining method and apparatus which utilizes at least first and second spaced-apart shafts extending essentially downwardly into the earth and at least one lateral opening connecting the two shafts at a location below the earth's surface. An empty ore carrier is dropped into a first of said shafts and allowed to gravitationally fall towards the bottom of said shaft, its rate of descent being controlled by regulating the flow of air out of the bottom of said shaft. When the empty ore carrier reaches its stopping point in the first shaft, the carrier is transferred into the lateral opening filled with ore, then into a watertight compartment which is sealed and filled with water, and then into the second water-filled shaft. The ore-bearing carrier then floats to the earth's surface, is emptied, and returned empty to the first shaft for a repeat of the above procedure. Several carriers are kept in service at the same time. The air shaft assists in mine ventilation and the flooded shaft in mine dewatering.

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