METHOD FOR UNDERGROUND HYDRO MINING OF MINERALS AND THE DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2021 - IPC E21C45/00 

FIELD: hydraulic mining.

SUBSTANCE: group of inventions relates to the field of hydraulic borehole mining. The method for hydraulic extraction of minerals includes the opening of a productive formation by a vertical central working, the placement of hydraulic mining equipment in this working, the formation of an artificial roof over the productive formation by washing out and releasing rock and filling the cavity with a hardening mixture. The erosion of the productive formation is carried out with the formation of a mining chamber, then the pulp is lifted to the surface and the mining chamber is laid with a hardening mixture. The penetration is performed by drilling the trunk. The artificial roof is formed in layers from top to bottom, and each underlying layer is created with a diameter larger than the overlying one. After solidification of the hardening mixture, the erosion of the productive formation is carried out in layers from top to bottom, while in the layers the erosion is carried out sectorally with the laying of the spent sector. The combination of hydraulic extraction of minerals with the opening of its trunk is ensured, which allows the use of powerful hydraulic monitoring equipment for erosion and high-performance dispensing equipment, increasing the radius of the mining chamber.

EFFECT: efficiency of mining increases with minimal environmental impact.

20 cl, 16 dwg