| 摘要 |
FIELD: mining.SUBSTANCE: invention relates to mining industry, to geotechnological methods of mining of solid minerals, in particular by method of underground leaching. Method of geotechnological exploration of water-bearing deposit of ironstone ores of oolitic structure consists of, that the section of deposit, for mining, drilled at a certain pattern with wells, wells are prepared for mining of minerals, then through the mouth of injection wells in formation of minerals leaching agent is pumped, after that, from extraction wells productive solution is taken using a pressure-bearing stratum. Pumping of leaching agent and output of productive solution is performed by use of potential energy, accumulated in gas volume, namely in capacity with compressed gas at the mouth of injection well and in evacuated vessel at the mouth of extraction well. Pumping of concentrated leaching agent into the formation of a mineral is performed upstream of mineral product flow which drowns formation. Transmission of diluted to the effective concentration of the leaching agent through a thickness of mineral bed in the lateral spread is carried out in homogeneous form together with drowning flow of formation in direction of its flow and with typical for it natural filtration rate. Accumulation and extraction to daylight surface of the obtained product solution is performed downstream of drown a formation mineral flow using pressure of this water bearing horizon.EFFECT: technical result is improving leaching efficiency and environmental friendliness of the process of underground leaching.25 cl, 9 dwg |
