SU775233A1 - Method of cleaning mine water collectors from slime - Google Patents

Description

The invention relates to a drainage pits and mining by dewatering _h.

There is a known method of removing water with silt deposits, including the collection of pulp using a water-jet • pump and its removal through a drain pipe and pressure stand to the surface [1]. , θ

There is also known a method of cleaning the sump from sludge, including the collection of sludge from the sump using a water-jet pump with the formation of pulp and discharge of the latter through a drain pipe and pressure head to the ^5th surface [2],

The disadvantage of these methods is that the removal of sludge from the water collectors is performed as an independent operation using auxiliary equipment, which causes additional energy consumption.

The purpose of the invention is the provision of 25 removal of sludge simultaneously with drainage and reduce energy consumption.

This goal is achieved by the fact that in the method of cleaning mine water collectors from sludge; including 30 sludge intake from the water collector with the help of a water-jet pump with the formation of pulp and discharge of the latter through the drain pipe and pressure stand to the surface, the sludge is taken until the drain pipe is filled with the pulp to the pressure stand, and in the process of pulp removal water is supplied to the drain pipe.

ria the drawing shows a device that implements the proposed method of cleaning-ι drain mine collectors from sludge.

The device has a supply pipe 1, connected on one side with a pressure head 2 of a sump pump 3 below a controlled valve 4, and on the other · with a nozzle 5 of a jet pump 6 with a check valve 7 connected to a funnel 8 of a water collector equipped with an inclined partition 9, a drain pipeline 10 connecting. diffuser 11 of the jet pump b with a pressure stand 2 between the valve 4 and the check valve 12 and equipped with a drain pipe 13 with a controlled valve 14, the th bypass jumper 15 with a controlled _; valve 16 mounted parallel to the jet pump 6.

The method using this device is as follows.

In the process of pumping water by the pump 3 from the well 17, the controlled valves 14 and 16 and the valve 7 are closed, and the pipelines 1 and 10 are filled with water. As water enters the catchment, sludge 18 accumulates in funnel 8, which is removed periodically depending on the degree of accumulation of its quantity and the volume of the drain pipe 10. The system of automatic control of the sludge removal process is adjusted to these conditions.

After a certain amount of sludge 18 has accumulated in the funnel 8, the controlled valve 14 and the check valve 7 are opened, and the valves 4 and the check valve 12 are closed. With this position of the valves 4 and 14 and valve 7, the jet pump 6 starts to suck the sludge 18, forming pulp, which fills the drain pipe 10, and the water contained in this pipe is discharged using the pipe 13 into the well 17. After a predetermined period of time corresponding to the approach of the pulp to the valve _; 14, the latter closes and the water pressure rises in the pipes 1 and 10, the valve 7 closes and the non-return valve 12 opens, and the pulp is discharged to turn on the pressure stand 2. shit. To reduce energy costs during the pulp removal period, after a certain period of time after opening the valve 12, the valve 16 of the bypass jumper 15 is opened, due to which water passes the jet pump 6, which is a hydraulic resistance. Upon completion of the removal of sludge 18 from the pipeline 10 and with continued drainage, the valve 4 opens and water from the well 17 through the pump 3 goes directly to the pressure head 2 and then to the surface.

After the estimated time during the accumulation of sludge 18, its removal is repeated with the same sequence of actions.

Implementation of the proposed method for cleaning mine sumps from sludge will allow more cost-effective removal of sludge from mine sumps, automate the process of removing sludge and reduce labor costs for drainage.

Claims (2)

The invention relates to the drainage of pits and mines by draining. There is a known method of reducing the cost of water with ORDER imposing charges, which includes the collection of pulp using a water jet pump and its removal through a discharge pipeline and a pressure head on the surface 1. There is also known a method for cleaning the water collectors from sludge, which includes loading of sludge from a water collector with a water jet pump with the formation of pulp and discharging the latter through the discharge pipe and pressure head to the surface 2. The disadvantage of these methods is that as an independent operation with the use of auxiliary equipment, which causes additional energy consumption. The purpose of the invention is to ensure the removal of sludge simultaneously with the drainage and reduction of energy consumption. The goal is achieved by the fact that in the method of cleaning the mine water collectors from sludge; including sludge intake from a sump using a water jet pump to form a pulp and discharging the latter through a drain pipe and pressure head to the surface; The drawing shows the device, the implementation of the proposed method O4jn-i of the drainage shaft from the mine sludge. The device has a supply pipe 1 connected on one side with the pressure head 2 of the drainage pump 3 below the controlled valve 4, and on the other with the nozzle 5 of the jet pump b with a check valve 7 connected to the funnel 8 of a water collector equipped with an inclined partition 9, DRAIN Pipeline 10, connecting. jet pump diffuser 11 with pressure head 2 between valve 4 and check valve 12 and equipped with drain pipe 13 with control valve 14, bypass jumper 15 with control valve. valve 16, installed. in parallel: jet pump 6. The method with this device is as follows. In the process of pumping water, the pump 3 from the well 17, the controlled valves 14 and 16 and the valve 7 are closed, and the pipes 1 and 10 are filled with water. As water enters the catchment basin, the sludge 18 accumulates in the funnel 8, which is removed periodically depending on the degree of accumulation of its quantity and the volume of the drain pipe 10 predetermined experimentally determined way. The sludge removal system is automatically configured for these conditions. After a certain amount of sludge 18 has accumulated in the funnel 8, the control valve 14 and the check valve 7 are opened, and the valves 4 and the check valve 12 are closed. With this position of the valves 4 and 14 and valve 7, the jet pump b begins to suck the sludge 18, The pulp that fills the drain pipe 10 and the water that was in this pipe is discharged through the pipe 13 into the well 17. After a predetermined period of time corresponding to the approach of the pulp to the valve 14, the latter closes in the pipe 1 and 10 lift The water pressure is applied, the valve 7 closes and opens with the check valve 12, and the slurry is discharged to the surface in the pressure head 2. In order to reduce energy costs during the period of pulp removal, after a certain period of time after opening valve 12, valve 16 of bypass bridge 15 opens, due to which water passes the jet nozzle 6, which represents a hydraulic resistance. At the end of the removal of the sludge 18 from the pipeline 10 and with continued drainage, the valve 4 is opened and the water from the well 17 through the pump 3 enters directly into the pressure head 2 and then to the surface. After the estimated time when the accumulation of sludge 18 is accumulated, its shrinkage repeats with the same sequence of actions. The implementation of the proposed method of cleaning the mine water collectors from sludge will make it more economical to remove the sludge from the mine water collectors, automate the process of removing the sludge and reduce the labor costs for drainage. Claim Method A method for cleaning a mine water collector from sludge, including taking sludge from a water collector using a water jet pump to form pulp and discharging the latter through a drain pipe and pressure head to the surface, characterized in Sludge is taken up to be filled with the slurry of the discharge pipeline to a pressure stand, and in the process of removing the slurry water is supplied to the drainage pipeline. Sources of information taken into account during the examination 1. Bolotskikh N.S. Equipment for water lowering in the coal and mining industry M., Nedra, 1973. p. 64, 116. I 2. Emel new A.V. and others. Water reduction, construction, m., stroiizdat, 1971, p. 48.