Automatic control system for underground drainage of mine

Abstract

The utility model provides an automatic control system for underground drainage of a mine. The automatic control system comprises an upper computer, a controller, a first main pipeline, a second main pipeline, at least three sets of drainage units and a water sump, the drainage unit comprises a first gate valve, a second gate valve, a third gate valve, a first ball valve, a second ball valve, a first branch pipe, a second branch pipe, a water pump motor, a water pump and a water inlet pipe. The first gate valve, the second gate valve, the third gate valve, the first ball valve, the second ball valve and the water pump motor are all controlled by a controller. Flow sensors are arranged on the first main pipeline and the second main pipeline, and a water level sensor is arranged in the water sump; the flow sensor and the water level sensor are both connected with a controller, and the controller is connected with an upper computer through a looped network. The mine underground drainage device is reliable in operation, high in automation degree and beneficial to improving the working efficiency of mine underground drainage operation.

Description

Technical Field

[0001] The utility model relates to a special facility for underground mines, in particular to an automatic drainage control system for underground mines. Background Art

[0002] At present, the main drainage system in mines mostly adopts simple electrical control. The start and stop of water pumps, selection and switching, and water level judgment are all done manually, resulting in poor operational reliability, large errors, and low work efficiency. At the same time, water pump operators need to be on duty 24 hours a day. In the event of underground water seepage, gas explosion or other emergencies, the operators are very likely to be unable to evacuate the pump room in time, posing a serious safety hazard. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the embodiment of the present invention provides an automatic control system for underground mine drainage, which is reliable in operation and highly automated, and is conducive to improving the efficiency of underground mine drainage operations. To achieve the above technical objectives, the technical solutions adopted by the embodiment of the present invention are:

[0004] The embodiment of the utility model provides an automatic control system for underground mine drainage, comprising a host computer, a controller, a first main line, a second main line, at least three drainage units, and a water tank;

[0005] The drainage unit includes a first gate valve, a second gate valve, a third gate valve, a first ball valve, a second ball valve, a first branch pipe, a second branch pipe, a water pump motor, a water pump, and a water inlet pipe; the first gate valve, the second gate valve, the third gate valve, the first ball valve, the second ball valve, and the water pump motor are all controlled by a controller;

[0006] The second and third gate valves are installed at the end of the second main line, the end of the second main line is connected to the outlet of the water pump; the water pump motor is connected to the water pump; the third gate valve is closer to the water pump than the second gate valve; the first gate valve is installed at the end of the first main line, the end of the first main line is connected to the second main line between the second and third gate valves; the inlet of the water pump is connected to one end of the water inlet pipe, and the other end of the water inlet pipe extends into the water tank;

[0007] The first ball valve is installed on the first branch pipe, the upper end of the first branch pipe is connected to the second main pipe, and the lower end of the first branch pipe extends into the water tank; the first branch pipe is installed vertically; the second ball valve is installed on the second branch pipe, one end of the second branch pipe is connected to the pipe section of the first branch pipe located below the first ball valve, and the other end of the second branch pipe is connected to the water inlet pipe at the water pump inlet or the water pump inlet;

[0008] Flow sensors are provided on the first main line and the second main line, and a water level sensor is provided in the water tank;

[0009] The flow sensor and the water level sensor are both connected to a controller, and the controller is connected to a host computer via a ring network.

[0010] Furthermore, the drainage unit also includes a first pressure sensor and a second pressure sensor; the first pressure sensor is installed at the inlet of the water pump, and the second pressure sensor is installed at the outlet of the water pump, and the first pressure sensor and the second pressure sensor are both connected to the controller.

[0011] Furthermore, the drainage unit also includes a vibration sensor, which is installed on the water pump motor and / or the water pump, and is connected to the controller.

[0012] Furthermore, the water tank is divided into a first tank and a second tank, a partition is provided between the first tank and the second tank, and a valve is installed at the bottom of the partition; the first tank and the second tank each correspond to at least one drainage unit.

[0013] Furthermore, the water level sensor includes a first water level sensor and a second water level sensor, and the first water level sensor and the second water level sensor are respectively arranged in the first compartment and the second compartment.

[0014] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are: the utility model is reliable in operation, easy to operate, and has a high degree of automation, which is beneficial to improving the working efficiency of underground mine drainage operations and promoting safe production in mining enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an automatic control system for underground mine drainage in an embodiment of the present utility model.

[0016] Figure 2 This is the electrical schematic diagram of the automatic control system for underground mine drainage in the embodiment of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] like Figure 1 、 Figure 2 As shown, the mine underground drainage automatic control system proposed in the embodiment of the utility model includes a host computer 1, a controller 2, a first main line 3, a second main line 4, at least three drainage units 5, and a water tank 6;

[0019] The drainage unit 5 includes a first gate valve 501, a second gate valve 502, a third gate valve 503, a first ball valve 504, a second ball valve 505, a first branch pipe 506, a second branch pipe 507, a water pump motor 508, a water pump 509, and a water inlet pipe 510; the first gate valve 501, the second gate valve 502, the third gate valve 503, the first ball valve 504, the second ball valve 505, and the water pump motor 508 are all controlled by the controller 1;

[0020] The second gate valve 502 and the third gate valve 503 are installed at the end of the second main line 4, the end of the second main line 4 is connected to the outlet of the water pump 509; the water pump motor 508 is connected to the water pump 509; the third gate valve 503 is closer to the water pump 509 than the second gate valve 502; the first gate valve 501 is installed at the end of the first main line 3, the end of the first main line 3 is connected to the second main line 4 between the second gate valve 502 and the third gate valve 503; the inlet of the water pump 509 is connected to one end of the water inlet pipe 510, the other end of the water inlet pipe 510 extends into the water tank 6;

[0021] The first ball valve 504 is mounted on the first branch pipe 506. The upper end of the first branch pipe 506 is connected to the second main pipe 4, and the lower end of the first branch pipe 506 extends into the water tank 6. The first branch pipe 506 is mounted vertically. The second ball valve 505 is mounted on the second branch pipe 507. One end of the second branch pipe 507 is connected to the section of the first branch pipe 506 below the first ball valve 504, and the other end of the second branch pipe 507 is connected to the water inlet pipe 510 at the inlet of the water pump 509 or the inlet of the water pump 509.

[0022] A flow sensor 7 is provided on each of the first main line 3 and the second main line 4, and a water level sensor 8 is provided in the water tank 6;

[0023] The flow sensor 7 and the water level sensor 8 are both connected to the controller 2, and the controller 2 is connected to the host computer 1 through a ring network.

[0024] The first main conduit 3 and the second main conduit 4 usually extend from the surface to the underground of the mine. Except for the first start-up, when water needs to be manually added to the first main conduit 3 and the second main conduit 4, water is stored in the first main conduit 3 and the second main conduit 4 during subsequent starts.

[0025] During startup, the first ball valve 504 and the second ball valve 505 are first opened, and the water in the first branch pipe 506 flows downward into the water tank, and the air in the water inlet pipe 510 can be discharged through the second branch pipe 507. At this time, the water pump motor 508 and the water pump 509 are started, and the third gate valve 503 is opened. With one of the first gate valve 501 and the second gate valve 502 open, the water pump 509 can draw the water in the water tank 6 into the first main line 3 or the second main line 4. After the air in the water inlet pipe 510 is discharged, the second ball valve 505 needs to be closed first, and then the first ball valve 504 needs to be closed.

[0026] In some embodiments, controller 2 employs a PLC controller, which monitors the water level in the mine's underground water tank 6 in real time via a water level sensor 8. When the water level exceeds an upper limit, drainage unit 5 is automatically activated. When the water level in water tank 6 falls below a lower limit, drainage unit 5 is automatically deactivated, closing third gate valve 503, first ball valve 504, and second ball valve 505. Drainage unit 5 can also be controlled locally via a switch installed underground.

[0027] The host computer 1 is installed on the ground and can monitor the flow in the first main line 3 and / or the second main line 4 and the water level in the water tank 6 in real time.

[0028] More preferably, the drainage unit 5 further includes a first pressure sensor 511 and a second pressure sensor 512; the first pressure sensor 511 is installed at the inlet of the water pump 509, and the second pressure sensor 512 is installed at the outlet of the water pump 509, and the first pressure sensor 511 and the second pressure sensor 512 are both connected to the controller 2;

[0029] The negative pressure value at the inlet of the water pump 509 can be monitored by the first pressure sensor 511, and the water pressure value at the outlet of the water pump 509 can be monitored by the second pressure sensor 512, so as to monitor whether the inlet pressure and outlet pressure of the water pump 509 are normal.

[0030] More preferably, the drainage unit 5 also includes a vibration sensor 513, which is installed on the water pump motor 508 and / or the water pump 509, and the vibration sensor 513 is connected to the controller 2; the vibration signal can be used to monitor whether the water pump motor 508 and / or the water pump 509 is working abnormally; if an abnormality occurs, an alarm is generated in time on the host computer 1.

[0031] More preferably, the water tank 6 is divided into a first tank 601 and a second tank 602, a partition 603 is provided between the first tank 601 and the second tank 602, and a valve 604 is installed at the bottom of the partition 603; the first tank 601 and the second tank 602 each correspond to at least one drainage unit 5; under normal circumstances, the valve 604 at the bottom of the partition 603 is opened, and the first tank 601 and the second tank 602 are connected. When it is necessary to remove sludge, the valve 604 at the bottom of the partition 603 can be closed, and the water in one of the water tanks of the first tank 601 and the second tank 602 can be drained to remove the sludge, and the other water tank can work normally.

[0032] More preferably, the water level sensor 8 includes a first water level sensor 801 and a second water level sensor 802, and the first water level sensor 801 and the second water level sensor 802 are respectively arranged in the first tank 601 and the second tank 602; so that when one of the water tanks is desilting, the other water tank can still monitor the water level.

[0033] In one embodiment, the three drainage units 5 are configured as primary, secondary, and the third for maintenance, thereby ensuring reliable underground mine drainage and promoting safe production in mining enterprises. Two main pipes are also provided, ensuring that at least one of the main pipes is unobstructed and capable of normal drainage.

[0034] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An automatic control system for underground mine drainage, characterized in that: It includes a host computer (1), a controller (2), a first main line (3), a second main line (4), at least three drainage units (5), and a water tank (6); The drainage unit (5) comprises a first gate valve (501), a second gate valve (502), a third gate valve (503), a first ball valve (504), a second ball valve (505), a first branch pipe (506), a second branch pipe (507), a water pump motor (508), a water pump (509), and a water inlet pipe (510); the first gate valve (501), the second gate valve (502), the third gate valve (503), the first ball valve (504), the second ball valve (505), and the water pump motor (508) are all controlled by a controller (2); The second gate valve (502) and the third gate valve (503) are installed at the end of the second main line (4), and the end of the second main line (4) is connected to the outlet of the water pump (509); the water pump motor (508) is connected to the water pump (509); the third gate valve (503) is closer to the water pump (509) than the second gate valve (502); the first gate valve (501) is installed at the end of the first main line (3), and the end of the first main line (3) is connected to the second main line (4) between the second gate valve (502) and the third gate valve (503); the inlet of the water pump (509) is connected to one end of the water inlet pipe (510), and the other end of the water inlet pipe (510) extends into the water tank (6); The first ball valve (504) is installed on the first branch pipe (506), the upper end of the first branch pipe (506) is connected to the second main pipe (4), and the lower end of the first branch pipe (506) extends into the water tank (6); the first branch pipe (506) is installed vertically; the second ball valve (505) is installed on the second branch pipe (507), one end of the second branch pipe (507) is connected to the pipe section of the first branch pipe (506) located below the first ball valve (504), and the other end of the second branch pipe (507) is connected to the water inlet pipe (510) at the inlet of the water pump (509) or the inlet of the water pump (509); A flow sensor (7) is provided on each of the first main pipe (3) and the second main pipe (4), and a water level sensor (8) is provided in the water tank (6); The flow sensor (7) and the water level sensor (8) are both connected to the controller (2), and the controller (2) is connected to the host computer (1) via a ring network.

2. The mine underground drainage automatic control system according to claim 1, characterized in that: The drainage unit (5) further comprises a first pressure sensor (511) and a second pressure sensor (512); the first pressure sensor (511) is installed at the inlet of the water pump (509), and the second pressure sensor (512) is installed at the outlet of the water pump (509); the first pressure sensor (511) and the second pressure sensor (512) are both connected to the controller (2).

3. The automatic control system for underground mine drainage according to claim 1, characterized in that: The drainage unit (5) further comprises a vibration sensor (513), which is mounted on the water pump motor (508) and / or the water pump (509), and is connected to the controller (2).

4. The automatic control system for underground mine drainage according to claim 1, characterized in that: The water tank (6) is divided into a first tank (601) and a second tank (602). A partition (603) is provided between the first tank (601) and the second tank (602), and a valve (604) is installed at the bottom of the partition (603). The first tank (601) and the second tank (602) each correspond to at least one set of drainage units (5).

5. The automatic control system for underground mine drainage according to claim 4, characterized in that: The water level sensor (8) comprises a first water level sensor (801) and a second water level sensor (802), and the first water level sensor (801) and the second water level sensor (802) are respectively arranged in the first bin (601) and the second bin (602).

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