SU1694783A1 - Well water discharging installation - Google Patents

Abstract

The invention relates to the removal of groundwater from underground workings, in particular to devices for drainage from mines, and is aimed at improving the reliability and efficiency of the process. This is achieved by the fact that the pressure pipeline 14 of the circulation hydroline is connected to the outlet of the slurry hydraulic elevator 9, while the discharge 13 of the pipeline 14 is located above the entrance to the water collector 7. 1 sludge.

Description

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The invention relates to the removal of groundwater from underground workings, in particular to devices for drainage from mines.

The purpose of the invention is to increase the reliability and performance,

In the drawing. Image drainage installation, general view.

The mine drainage installation includes a non-suction chamber 1 with pumps 2, each equipped with a pressure head 3 with a valve 4 and a suction pipe 5. The latter is connected to a suction well 6. associated with a water collector 7, at the entrance to which a preliminary settler 8 is made. In well 6 there is a slurry hydraulic elevator 9 with a suction 10 and a working fluid pipe 11 connected to the pipeline 3 through a valve 12. Discharge 13 of pressure pipeline 14 hydraulic elevator 9 with a valve 15 is placed at the beginning of the water collector 7, and between the well 6 and the water collector 7, a jumper 16 is installed with the bypass valve 17.

The installation works as follows.

After the next drainage of the sump 7 to the lower level (LU) level, the sump 7 is refilled with a ground-level groundwater inflow to the upper level (LL) level. After that, the pump 2 is turned off and drains water to the surface with the next lowering of the level to (LV). After accumulation in the catchment 7 of the mass of sludge at a certain level of water in it, for example, at (WU), it is cleaned. At this stage, they include such a number of drainage pumps, which would simultaneously ensure the pumping of water to the surface. To perform the cleaning, open the valves 12 and 15. As a result, a part of the liquid from the injection pipeline 3 enters the nozzle of the hydraulic elevator 9 through the pipe 11, the latter enters the operation and sucks the liquid from the well 6, and the resulting flow through the pipeline 14 is introduced into the initial part of the sump 7 In the latter, there is a flow of injected fluid in the direction of movement of the general flow to the

the well 6, in which it is taken in the same quantity by the hydraulic elevator 9 and is again supplied to the pipeline 14. Thus, the liquid is introduced as a stream, continuously

circulating in a closed hydraulic circuit: hydraulic elevator 9, pipeline 14, catchment basin 7, well 6. Part of it is the catchment basin itself (or sump) 7, and the flow is

one end of it, and the intake is carried out at the other, from the side of the well 6. At the same time, the flow rate is the same along the entire length of the catchment 7 during the required period of time,

which, combined with the inflow (and in some cases without it), exceeds the consumption of the latter. Such an excess creates a flow rate in the collector 7, at which the previously settled solid particles, including

and in the areas farthest from the well 6, they are effectively stirred up and transported in the form of a slurry in the direction of the latter.

After removing solids from

the water collector 7, the valve 12 is closed with shutdown of the hydraulic elevator 9 and the installation continues to work as usual.

With such a constructive solution to the installation, the horn line 14 is operated at low pressure and without immersion in the mass of sludge, which increases the reliability of its operation and the efficiency of the entire drainage process practically at any length of the sump 7.

Claims (1)

The claims of the mine are a drainage installation, including a pumping chamber with drainage pumps, a water collector placed on the discharge of the latter, a slurry hydro-elevator, a circulation hydroline with a pressure pipe and a discharge of the latter placed in the catchment basin, in order to increase reliability and efficiency of work; the pressure pipeline is connected to the outlet of the slurry hydraulic elevator, while the pipeline is discharged above the entrance to the water collector.