Process for hydraulically mining coal employing a cutting monito

Details Process for hydraulically mining coal employing a cutting monito Process for hydraulically mining coal employing a cutting monito

1976-11-12

1978-06-13

Purser, Ernest R.

Mining or in situ disintegration of hard material

Processes

Breaking down by direct contact with fluid

299 18, E21C 4100

Patent

active

040945499

ABSTRACT:
This invention relates to a method for hydraulically mining of coal. An entry is driven upwardly through a panel of coal to a predetermined terminus and a fluming system, which slopes in the same direction as the entry, is installed in the entry. A monitor is positioned in the entry and a high pressure jet of water from the monitor is employed to cut coal from the face area of the panel of coal. The cut and broken coal is then further broken with a jet of high pressure water from a second monitor positioned in the entry and located near the face area. The broken coal then is fed to the fluming system and transported through the flume with the aid of gravity as a coal-water slurry.

REFERENCES:
patent: 3790214 (1974-02-01), Kilroy
Boyd, Bureau of Mines Circular, 7887, 1959, pp. 1-33.
"The Japanese Search for Raw Materials," Mining Congress Journal, Feb. 1971.
Bureau of Mines Translation, No. 216, 1957, pp. 430-442.

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