WASTE LIQUID CONVEYING DEVICE Russian patent published in 2022 - IPC E03F5/00 

FIELD: drainage.

SUBSTANCE: invention contains vertical shaft and the equipment placed in it: divided inlet manifold, interceptor, separated from the shaft with base plate, differential riser connecting divided inlet manifold and interceptor, atmospheric air induction system with back pressure valve on top – over differential riser, airduct-riser, connected to differential riser with jumpers, vacuum ventilation system including duct with back-pressure valve at the top. The jumpers connecting airduct-riser with differential riser are made with downward slope from airduct-riser. Atmosphere air supply system pipeline over differential riser is tightly connected to differential riser and riser-airduct with an arc-shaped adapter. Additionally, the second atmosphere air supply system is connected to the mine, the system is in the form of pipeline made out of vertical and horizontal parts placed over upper mine plate and, accordingly, under the plate; in addition, the horizontal part is made with through holes. Vacuum ventilation system pipeline in the mine’s operating unit is in the lower part of the mine, passing along the side wall of the mine up to the exit from the upper plate of the mine. Equipment in the working and operating units that is apt to corrosion in the exploitation process is made of or protected with material that has oxidation resistance and antifriction properties.

EFFECT: performance improvement and improvement of device’s in-service environment are provided.

1 cl, 6 dwg