MINE REDUCTION UNIT URSH-M Russian patent published in 2023 - IPC F16K47/08 F16K17/04 F16K15/14 E21B43/12 

FIELD: mining.

SUBSTANCE: proposed invention is intended to reduce water pressure in mine pipelines and ensure their safe operation and can be used in water supply systems of coal mines and open pits, enterprises of other industries. The unit includes interconnected reducing modules, high-pressure valves and check valves, the high-pressure valve includes a body with a seat, a shut-off membrane with peripheral and central holes, a cover, a rod with a valve configured to move in a fixed sealed sleeve, while the rod is connected to the axle box by means of balls fixed with a threaded pin, the drive of the axle box is carried out by a handwheel fixed on it, a mesh filter is placed in the housing, and the lid is made of a sealed membrane and secured in the housing using half rings, fixed in the groove of the housing with a ring and a locking ring, and the upper connector of the housing is closed with a lid, secured by a ring, wherein the check valve includes a body with a seat, a shut-off membrane with peripheral holes, a cover secured with half-rings and thrust bolts, the half-rings are fixed by a ring, which in turn is fixed by a spring ring, the bolts are secured by a protective cover, and the membrane is spring-loaded.

EFFECT: increasing throughput, as well as ensuring reliability and durability.

1 cl, 3 dwg