HYDRAULIC ELEVATOR Russian patent published in 2008 - IPC F04F5/10 F04F5/24 

FIELD: mining.

SUBSTANCE: hydraulic elevator is designed for development of soil of any density. The hydraulic elevator incorporates lifting pipe with a mixing chamber and ejector at a lower end, active nozzle and case. The active nozzle is positioned in the cavity of the case and is installed coaxially to the mixing chamber. The hydraulic elevator is equipped with an active medium supply unit, a hydraulic monitor and an eroding head. The supply unit, hydraulic monitor and the eroding head are hydraulically connected to the active nozzle. The case is made in form of paraboloid of revolution. A shear of the active nozzle is installed in the focus of paraboloid. The eroding head representing a continuous circular groove is formed with an additional case in form a paraboloid of revolution. The additional case envelops the main case. The focus of the additional case is aligned with the focus of the main paraboloid. A cavity between exterior surface of the main case and interior surface of the additional case with its sleeve coupled with a hydraulic monitor. The additional case is installed on the mixing chamber and can be axially set off to the side of the main case. A ratio between cross section of the active medium supply unit, sleeves of the additional case and the active nozzle is 5:3:1.

EFFECT: facilitation of high efficiency at lower consumption of active medium.

5 cl, 1 dwg