Flood drainage system for tailing pond in flood season

Abstract

The utility model belongs to the technical field of tailing stockpiling, and particularly relates to a flood drainage system for a tailing pond in a flood season. Comprising a tailing pond, a drainage channel, a water return pond, a first cut-off device, a first water return well, a second cut-off device, a second water return well, a third cut-off device, emergency water and an adjusting water pond. When rainwater rises to different heights, flood drainage facilities in the reservoir area play a role in echelon, and the purposes that sundries and sludge can be prevented from blocking a water return pipeline, and the water return requirement of the tailing pond (red mud reservoir) can be met are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tailings storage, and in particular relates to a tailings pond flood discharge system during flood season. Background Art

[0002] As a site for the storage of tailings and red mud, the safety and stability of the tailings pond (red mud pond) is extremely critical. The bottom seepage of the reservoir and the surface rainwater flow to the return water pool through the river channel or spillway in the reservoir area, and then are transported back to the factory by the recovery pump. When the flood season comes, the amount of rainwater in the reservoir increases, and it is easy for debris and silt to block the river channel and the outlet, resulting in poor return water in the return water pool. If the rain continues to increase, multiple return water facilities will simultaneously receive rainwater carrying silt or debris, which may easily cause the return water system to be paralyzed and fail to meet the return water requirements of the tailings pond (red mud pond). Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a tailings pond flood discharge system, which specifically includes the following contents:

[0004] A tailings pond flood discharge system during flood season includes a tailings pond, a drainage channel, a return water pool, a first interception device, a first return water well, a second interception device, a second return water well, a third interception device, emergency water and a regulating water pool.

[0005] The drainage channel is arranged at a lower location around the tailings pond to collect the accumulated water discharged from the tailings pond;

[0006] The return water pool is connected to the drainage channel through a first pipe, and the return water pool is used to store rainwater from the drainage channel;

[0007] The first intercepting device is disposed on the first pipeline and is used to intercept solid impurities in the accumulated water flowing through the first pipeline;

[0008] A plurality of water return ports are longitudinally arranged on the side of the first water return well, and a water return control device is arranged at each of the water return ports. The bottom of the first water return well is connected to the water return pool through a second pipe and to the regulating water pool through a third pipe. The water return control device is a water return valve or other device that can block the water return port, and the water return port can be opened and closed by the water return control device.

[0009] The second intercepting device is arranged at the connection between the second pipeline and the return water tank, and is used to intercept solid impurities in the accumulated water flowing through the second pipeline;

[0010] A water outlet is provided on the side of the second water return well, and a water outlet control device is provided at the water outlet, and the water outlet control device can realize the opening and closing of the water outlet, and the water outlet is connected to the emergency water pool through a fourth pipe;

[0011] The third intercepting device is disposed above and around the second water return well, and is used to intercept solid impurities in the accumulated water that is about to flow into the second water return well.

[0012] It should be noted that, in order to facilitate the flow and storage of accumulated water, preferably, the return water pool, the first return water well, and the second return water well are arranged above the ground, and the regulating water pool and the emergency water pool are arranged underground.

[0013] Preferably, a circle of fourth intercepting devices is arranged around the return water pool, and the fourth intercepting devices are used to intercept solid impurities in the accumulated water flowing into the return water pool from the surrounding areas.

[0014] Preferably, the first intercepting device, the second intercepting device, the third intercepting device and the fourth intercepting device are all filtering devices. Preferably, the filtering device is a grate.

[0015] Preferably, the water outlet control device includes a water baffle and a pull rope arranged inside the water outlet, one end of the pull rope is connected to the upper end of the water baffle, and the other end is suspended outside the second water return well along the side wall of the second water return well.

[0016] Preferably, the water outlet control device is a water outlet control valve.

[0017] Preferably, it also includes a first water delivery system, which includes at least one first water delivery pipeline, one end of which is connected to the emergency water tank and the other end is connected to the regulating water tank, and a first water delivery pump is provided on the first water delivery pipeline.

[0018] Preferably, it further comprises a second water delivery system, wherein the second water delivery system comprises at least one second water delivery pipeline, the water inlet of the second water delivery pipeline is connected to the regulating water tank, and the second water delivery pipeline is provided with a second water delivery pump.

[0019] Beneficial effects of the utility model:

[0020] By using the tailings pond flood season drainage system disclosed by the utility model, flood drainage can be gradually carried out according to the rainwater backflow situation in the reservoir area during the flood season, and the problem of the backwater system being paralyzed due to debris blocking the drainage pipe can be effectively prevented. When the rainwater is small, the accumulated water and rainwater in the tailings pond area enter the backwater pool through the first pipe, and enter the regulating water pool through the first backwater well and the second pipe, and finally are transported to the external treatment plant by the second water delivery pump through the second water delivery pipe. When the rainwater is large, when the water level reaches the position of the open backwater port of the first backwater well, the upper clear liquid of the rainwater enters the first backwater well from the backwater port, and enters the regulating water pool through the third pipe, and finally is transported to the external treatment plant by the second water delivery system; the backwater port of the first backwater well can also be provided with a filtering device as needed. If the rain continues to increase, the second backwater well begins to play a role. If the water level in the emergency pool rises too quickly, the first water pump can be turned on to transport rainwater to the regulating pool. If the emergency pool cannot withstand the backwater pressure, you can also choose to temporarily close the water outlet control device of the second backwater well. At this time, the second backwater well will no longer return water, and rainwater will accumulate rapidly near the first backwater well. As the water level continues to rise, because the upper backwater inlet of the first backwater well is not opened (usually the topmost backwater inlet is in a closed state), a third sedimentation effect is formed until the rainwater level reaches the top of the first backwater well, flows into the first backwater well from the top wellhead, and still enters the regulating pool through the third pipe, and is finally transported to the external treatment plant by the second water delivery system.

[0021] By utilizing the tailings pond flood season drainage system disclosed in the utility model, when there is heavy rain, the advantage of the low-lying terrain can be utilized to form a natural "sedimentation pool". When the rainwater rises to different heights, the drainage facilities in the reservoir area interact with each other in stages, thereby achieving the purpose of preventing debris and silt from clogging the return water pipe and meeting the return water demand of the tailings pond (red mud pond). BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic structural diagram of the tailings pond flood discharge system during flood season. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods. The embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims.

[0024] Figure 1It is a front structural schematic diagram of the tailings pond flood season discharge system disclosed in the utility model. The arrow in the figure indicates the direction of water flow. A tailings pond flood season discharge system includes a tailings pond, a drainage channel 1, a return water pool 2, a first interception device 3, a first return water well 7, a second interception device 4, a second return water well 9, a third interception device 6, an emergency water pool 15 and a regulating water pool 14. The emergency water pool 15 and the regulating water pool 14 are arranged underground. The drainage channel 1 is arranged at a lower terrain around the tailings pond, and is used to collect the accumulated water discharged from the tailings pond; the backwater pool 2 is connected to the drainage channel 1 through a first pipe, and the backwater pool 2 is used to store rainwater from the drainage channel 1. The backwater pool 2 is preferably arranged at a lower terrain to facilitate the flow of rainwater from the drainage channel 1 into the backwater pool 2; the first intercepting device 3 is arranged on the first pipe, and is used to intercept solid impurities in the accumulated water flowing through the first pipe; a plurality of backwater ports 8 are longitudinally arranged on the side of the first backwater well 7, and a backwater control device is arranged at each of the backwater ports 8. The bottom of the first backwater well 7 is connected to the backwater pool 2 through a second pipe, and is connected to the regulating water pool 14 through a third pipe 12; the backwater The control device is a backwater valve or other device that can block the backwater port 8, and the backwater port 8 can be opened and closed by the backwater control device; the second intercepting device 4 is arranged at the connection between the second pipeline and the backwater pool 2, and the second intercepting device 4 is used to intercept the solid impurities in the accumulated water flowing through this place; the side of the second backwater well 9 is provided with a water outlet, and the water outlet control device is arranged at the water outlet, and the water outlet control device can realize the opening and closing of the water outlet, and the water outlet is connected with the emergency water pool 15 through the fourth pipeline 13; the third intercepting device 6 is arranged above and outside the second backwater well 9, and the third intercepting device 6 is used to intercept the solid impurities in the accumulated water that is about to flow into the second backwater well 9. It should be noted that in order to facilitate the flow and storage of accumulated water, preferably, the backwater pool 2, the first backwater well 7, and the second backwater well 9 are arranged above the ground, and the regulating water pool 14 and the emergency water pool 15 are arranged underground. Figure 1 The dotted line above the second return water well 9 in the figure indicates that the second return water well 9 can be appropriately raised when necessary.

[0025] In one embodiment of the utility model, a circle of fourth intercepting devices 5 are arranged around the return water tank 2, and the fourth intercepting devices 5 are used to intercept solid impurities in the accumulated water flowing into the return water tank 2 from the surrounding areas.

[0026] In one embodiment of the present invention, the first intercepting device 3, the second intercepting device 4, the third intercepting device 6, and the fourth intercepting device 5 are all filtering devices. Preferably, the filtering device is a grate.

[0027] In one embodiment of the utility model, the water outlet control device includes a water baffle 10 and a pull rope 11 arranged inside the water outlet, one end of the pull rope 11 is connected to the upper end of the water baffle 10, and the other end is hung outside the second return water well 9 along the side wall of the second return water well 9.

[0028] In one embodiment of the present invention, the water outlet control device is a water outlet control valve.

[0029] In one embodiment of the utility model, it also includes a first water delivery system, which includes at least one first water delivery pipeline, one end of which is connected to the emergency water tank 15 and the other end is connected to the regulating water tank 14, and a first water delivery pump 20 is provided on the first water delivery pipeline.

[0030] In one embodiment of the utility model, a second water delivery system is further included, the second water delivery system includes at least one second water delivery pipeline 22, the water inlet of the second water delivery pipeline 22 is connected to the regulating water tank 14, and a second water delivery pump 21 is provided on the second water delivery pipeline 22.

[0031] The tailings pond flood season drainage system disclosed in the utility model can gradually discharge flood water according to the rainwater backflow situation in the reservoir area during the flood season, and can also effectively prevent the problem of backwater system paralysis caused by debris blocking the drainage pipe. The specific flood discharge steps are:

[0032] Case 1: When the rainwater is small, the accumulated water in the tailings reservoir area and the rainwater enter the return water pool 2 through the first pipe, and enter the regulating water pool 14 through the first return water well 7 and the second pipe (the second pipe is an underground pipe), and finally transported to the external treatment plant by the second water delivery pump 21 through the return second water delivery pipe 22. At this time, if the first intercepting device 3 and the second intercepting device 4 are blocked, they can be cleaned normally because the water volume is small and the danger of cleaning is small.

[0033] Situation 2: When the rain is heavy, the debris in the drainage channel 1 also increases. If the first interception device 3 and the second interception device 4 are blocked and the rain continues to increase, the return pool 2 can no longer return water normally. At this time, it is very dangerous for personnel to clean the first interception device 3 and the second interception device 4. At this time, there is no need for personnel to clean, and the water level can be allowed to rise. When the water level rises above the height of the return pool 2 and does not reach the position of the open return port 8 of the first return well 7 (the first return well 7 is provided with multiple return ports 8 in the longitudinal direction, and the height of the return port 8 can be set according to actual needs), the terrain here has formed a natural "sedimentation pool" and the first sedimentation effect begins to play a role. Due to the filtering effect of the fourth intercepting device 5 around the return pool 2, or the effect of debris blocking the inlet and outlet of the return pool 2, the debris cannot enter the first return well 7 at this time. As the water level rises, the debris and sludge in the rainwater gradually settle. When the water level reaches the position of the open return port 8 of the first return well 7, the upper clear liquid of the rainwater enters the first return well 7 from the return port 8, and enters the regulating pool 14 through the third pipe 12, and is finally transported to the external treatment plant by the second water delivery system; a filtering device can also be set at the return port 8 of the first return well 7 as needed;

[0034] Case 3: Based on Case 2, if the rain continues to increase, the water level continues to rise and exceeds the position of the open return port 8 of the first return well 7, then there is no need for personnel to open the return port 8 at a higher position. The second return well 9 begins to function. When the water level rises to the wellhead position of the second return well 9, because the third interception device 6 is arranged above and outside the second return well 9, before the rainwater enters the second return well 9, it is first filtered by the third interception device 6, which can effectively prevent debris from entering the second return well 9. The water outlet control device of the second return well 9 is normally in the open state. The accumulated water in the second return well 9 can enter the emergency water tank 15 through the fourth pipe 13 (the fourth pipe 13 is an underground pipe), which can relieve the water storage pressure of the regulating pool 14;

[0035] Case 4: Based on Case 3, if the water level of the emergency water tank 15 rises too quickly, the first water pump can be turned on to transport rainwater to the regulating water tank 14. If the emergency water tank 15 cannot withstand the backwater pressure, you can also choose to temporarily close the water outlet control device of the second backwater well 9. At this time, the second backwater well 9 no longer returns water, and rainwater accumulates rapidly near the first backwater well 7. As the water level continues to rise, because the upper backwater port 8 of the first backwater well 7 is not opened (usually the topmost backwater port 8 is in a closed state), a third sedimentation effect is formed until the rainwater level reaches the top of the first backwater well 7, flows into the first backwater well 7 from the top wellhead, and still enters the regulating water tank 14 through the third pipe 12, and is finally transported to the external treatment plant by the second water delivery system.

[0036] By utilizing the tailings pond flood season drainage system disclosed in the utility model, when there is heavy rain, the advantage of the low-lying terrain can be utilized to form a natural "sedimentation pool". When the rainwater rises to different heights, the drainage facilities in the reservoir area interact with each other in stages, thereby achieving the purpose of preventing debris and silt from clogging the return water pipe and meeting the return water demand of the tailings pond (red mud pond).

[0037] In the description of this application, it should be noted that the orientation or positional relationship indicated by the orientation nouns in this article is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] Unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tailings pond flood discharge system, characterized in that: It includes tailings pond, drainage channel, return pool, first interception device, first return well, second interception device, second return well, third interception device, emergency pool and regulating pool. The drainage channel is arranged at a lower location around the tailings pond; The return water tank is connected to the drainage channel through a first pipe; The first intercepting device is disposed on the first pipeline; A plurality of return ports are longitudinally arranged on the side of the first return well, and a return control device is arranged at each of the return ports. The bottom of the first return well is connected to the return pool through a second pipe and to the regulating pool through a third pipe. The second intercepting device is arranged at the connection between the second pipeline and the return water tank; A water outlet is provided on the side of the second water return well, a water outlet control device is provided at the water outlet, and the water outlet is connected to the emergency water pool through a fourth pipe; The third intercepting device is covered above and around the second water return well.

2. A tailings pond flood season drainage system according to claim 1, characterized in that: A circle of fourth intercepting devices is arranged around the return water pool.

3. A tailings pond flood season drainage system according to claim 2, characterized in that: The first intercepting device, the second intercepting device, the third intercepting device and the fourth intercepting device are all filtering devices.

4. A tailings pond flood discharge system according to claim 3, characterized in that: The filtering device is a grate.

5. The tailings pond flood season drainage system according to claim 1, characterized in that: The water outlet control device includes a water baffle and a pull rope arranged inside the water outlet, one end of the pull rope is connected to the upper end of the water baffle, and the other end is hung outside the second water return well along the side wall of the second water return well.

6. A tailings pond flood discharge system according to claim 1, characterized in that: The water outlet control device is a water outlet control valve.

7. The tailings pond flood season drainage system according to claim 1, characterized in that: It also includes a first water delivery system, which includes at least one first water delivery pipeline, one end of which is connected to the emergency water tank and the other end is connected to the regulating water tank, and a first water delivery pump is arranged on the first water delivery pipeline.

8. The tailings pond flood season drainage system according to any one of claims 1 to 7, characterized in that: It also includes a second water delivery system, which includes at least one second water delivery pipeline, the water inlet of the second water delivery pipeline is connected to the regulating water tank, and the second water delivery pipeline is provided with a second water delivery pump.

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