BOREHOLE INSTALLATION FOR HYDRAULIC EXCAVATING Russian patent published in 2009 - IPC E21C45/00 

FIELD: mining.

SUBSTANCE: invention refers to mining and can be implemented at borehole hydraulic excavating of minerals. The installation consists of a high pressure column, and of a central pulp lifting column installed inside the high pressure column, interior cavity of which is connected to internal cavity of the high pressure column via a nozzle of hydraulic lift; in a lower part of the high pressure column there is installed the nozzle of the hydraulic lift; an additional nozzle with a suction chamber is rigidly connected to the nozzle of the hydraulic lift. The nozzle of the hydraulic lift is connected to the high pressure column, is designed to rotate relative to its lengthwise axis and is equipped with a tailed jet; also tails of the jet are bent opposite to rotation direction; while the suction chamber is equipped with a pulp intake with openings assembled radial to the suction chamber and directed to the side of hydraulic monitor rotation. The invention facilitates increased efficiency due to intensification of pulp formation process and due to increased per cent contents of extracted material in pulp.

EFFECT: increased efficiency due to intensification of pulp formation process and due to increased per cent contents of extracted material in pulp.

3 dwg