Method and apparatus for hydraulic transmission of coal, oil sha

Details Method and apparatus for hydraulic transmission of coal, oil sha Method and apparatus for hydraulic transmission of coal, oil sha

1976-09-03

1978-04-04

Stoner, Jr., Bruce H.

Cutlery

299 64, B65G 5330, B65G 5346

Patent

active

040823687

ABSTRACT:
A method and apparatus for hydraulically transmitting coal, oil shale, mineral ores, etc. from the mine face to the surface of underground mines via a pipeline by injecting the mined material from near the mine face into a body of water flowing in a pipeline, such injection being accomplished by an injection device which moves the mined material into the pipeline without applying any pushing forces and relocates the mined material in a continuous fashion from a first low pressure water circulation loop into a second higher pressure water circulation loop. The second water circulation loop communicates as required with a second injection device which relocates the mined material to a third higher pressure water circulation loop for increasing the pressure in the pipeline for transmission from deep mines.

REFERENCES:
patent: 2914223 (1959-11-01), Richter
patent: 3260548 (1966-07-01), Reichl
patent: 3411986 (1968-11-01), Buchberger et al.
patent: 3429773 (1969-02-01), Richter
patent: 3449013 (1969-06-01), Sakamoto et al.
patent: 3485534 (1969-12-01), Wanzenberg et al.
patent: 3845990 (1974-11-01), McCain

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