DEVICE FOR WELL HYDRO-EXTRACTION OF MINERAL RESOURCES Russian patent published in 2006 - IPC E21C45/00 

FIELD: mining industry, in particular, engineering of devices for well hydro-extraction of mineral resources; possible use for hydro-extraction of mineral resource from buried permafrost alluvial deposits.

SUBSTANCE: device for well hydro-extraction of mineral resources includes, mounted coaxially: upper 1, intermediate 6 and central 5 pipes, ends of which are located at different levels, lower part of external pipe 1 saddle 3 is made with hydro-monitoring heads 4, positioned below the level of lower end of central pipe 5, in lower part of intermediate pipe 6 saddle 8 and conical stop 9 are made with possible abutment of the latter on saddle of external pipe 1, lower section of central pipe 5 being provided with conical stop 7 with its possible abutment against saddle 8 of intermediate pipe 6, while intermediate pipe 6 and central pipe 5 are interconnected. In accordance to other variant of device external pipe 1 is provided with thermo-isolating layer 2.

EFFECT: increased efficiency of well hydro-extraction of mineral resource due to provision of possible successive assembly and disassembly of technological columns of device in product well and washing out mineral resource in suction zone during its lifting to the surface.

2 cl, 2 dwg