| 摘要 |
FIELD: mining, particularly development of sand-and-gravel and placer deposit with hydraulic dredges. ^ SUBSTANCE: method involves creating hydraulic mix with flow-rate exceeding suction means of hydraulic dredge; condensing hydraulic mix in condensing-and-separation device and separating the hydraulic mix into condensed and settled portions; delivering condensed portion into suction means of hydraulic dredge; returning settled portion to mine face. Device for described method realization comprises suction means of hydraulic dredge, socking head, pipeline and pump for hydraulic mix forming and supply from mine face. Device also has attachment system including independent socking head, condensation-and-separation device and outlet to discharge settled portion into sump. ^ EFFECT: increased output, possibility of initial material refinement and extended mining depth. ^ 16 cl, 6 dwg |
