Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent
1973-05-02
1976-02-10
Taylor, Dennis L.
Mining or in situ disintegration of hard material
Processes
Forming blocks
61 45R, 299 11, E02D 500
Patent
active
039370259
ABSTRACT:
This invention pertains to inflatable envelope apparatus or pressurized container structures and associated methods to be used together with slurry products of concentrated or metallurgical plants in backfilling and other operations involving subterranean works. The pressurized container structures are envelopes which can be fabricated of various materials and shapes, or other light weight pressurized containers, the shape or volume of which is sustained by internal gas pressure. The technique for extracting a metal bearing substance comprises several steps, the principal ones being the placing within a subterranean chamber a pressurized envelope structure, pouring into the chamber adjacent the envelope structure slurry products emanating from a concentrator or flotation plant which lie in contact with but external to the pressurized envelope. The slurry is dewatered or otherwise solidified after which the metal bearing substances located adjacent to the envelope are extracted using equipment acting from within the volume defined by the envelope.
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