| 摘要 |
FIELD: mining industry. ^ SUBSTANCE: method includes drilling of vertical well in massive of extracted chamber, casing of well, equipping it with concentrically placed water-feeding, brine-hoisting and operational pipes, feeding of dissolvent along brine-hoisting pipe, feeding of non-dissolvent along inter-pipe space between water-feeding pipe and operational pipe, forming of preparatory mine, extraction of brine along inter-pipe space between water-feeding pipe and brine-hoisting pipe. Dissolvent is injected with inert relatively to enveloping slats mass increaser for receiving heavy suspension in mass relation of mass increaser to dissolvent from 0.15:1 to 0.24:1. As mass increaser granules of magnetite in glass casing are used. ^ EFFECT: higher speed of dissolvent saturation, faster washout of preparatory mine of dissolving chamber, lower energy costs due to lesser number of saturation cycles. ^ 2 cl, 1 dwg |
