Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent
1978-02-27
1980-04-22
Purser, Ernest R.
Mining or in situ disintegration of hard material
Processes
Breaking down by direct contact with fluid
299 19, E21C 4500
Patent
active
041991923
ABSTRACT:
In the method of mining mineral deposits with hydraulic extraction a seam to be mined is divided into long pillars along the strike, and each pillar is subdivided with extraction workings and breakthroughs into benches defining short working faces, whereafter a single hydromonitor mounted in an extraction working is operated for stoping in the two adjacent benches, in the direction of the gravity flow of the slurry therealong. In accordance with the invention, boundary or run-around entries are driven, and communicated with the extraction workings via cut breakthroughs, whereafter these cut breakthroughs are expanded up to the sole of the seam, whereby at the stoping of the extraction cut in the two adjacent benches in the direction of the sloping of the extraction and boundary entries the main stream of the slurry is removed from the stope through the boundary working.
REFERENCES:
patent: 796499 (1905-08-01), Claghorn
patent: 957364 (1910-05-01), O'Toole et al.
patent: 1276952 (1918-08-01), O'Toole
patent: 2358687 (1944-09-01), Cassidy et al.
"Hydraulic Mining of Coal", by Parkes & Grimley Mining Congress-Journal, pp. 26-29, May-1975.
"Hydraulic Mining", Mitsui Mining, Ltd., 14 pages.
Odinokov Boris P.
Pakhtusov Gavriil A.
Pakhtusov Jury G.
Sankov Anatoly E.
Semenikhin Anatoly Y.
Nissen J. Harold
Purser Ernest R.
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