Drainage device suitable for tailing pond

Abstract

The drainage device comprises a water collecting pit, a first-stage sedimentation tank, a second-stage sedimentation tank and a third-stage sedimentation tank are arranged in the water collecting pit, partition walls are arranged between the first-stage sedimentation tank and the second-stage sedimentation tank and between the second-stage sedimentation tank and the third-stage sedimentation tank, overflow ports are formed in the partition walls, first filter screens are arranged on the overflow ports, and second filter screens are arranged on the first filter screens. A cover plate is arranged on the water collecting pit, a water inlet is formed in the part, corresponding to the first-stage sedimentation tank, of the cover plate, and a water outlet is formed in the third-stage sedimentation tank. The water inlet in the cover plate is used for inflow of accumulated water in the tailing pond, after inflow, the accumulated water is subjected to three-stage precipitation and then is discharged from the water outlet, compared with a traditional water pump suction mode, the drainage device can be installed continuously and rapidly in the tailing pond construction process, the construction progress is accelerated, the construction cost is reduced, and the construction efficiency is improved. The construction period is shortened; and no power is needed, transmission equipment of power generation equipment does not need to be deployed, on-site construction is achieved, cost is low, and efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining engineering construction, and particularly relates to a drainage device suitable for a tailing pond. BACKGROUND

[0002] Generally, tailing ponds are constructed in dry seasons, but some projects have tight schedules, and the construction of tailing ponds is carried out in rainy seasons. During the laying of the geomembrane of the tailing pond, water accumulation occurs due to rainfall in the rainy season. After the water accumulation is pumped out, the construction of the tailing pond can continue.

[0003] In the prior art, the water in the tailing pond is usually pumped out by erecting a water pump. In the rainy season, the water pump has many constraints, long preparation time, high failure rate, and high cost. Frequent drainage in the rainy season increases labor and equipment costs. In addition, a system power supply or self-generation is required. Moreover, due to safety problems, the water can only be pumped out after the rainfall ends, which is low in efficiency. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide a drainage device suitable for a tailing pond to solve the above problems.

[0005] To achieve the above purpose, the technical scheme of the present application is as follows:

[0006] A drainage device suitable for a tailing pond comprises a water collecting pit, a first-stage sedimentation tank, a second-stage sedimentation tank and a third-stage sedimentation tank are arranged inside the water collecting pit, a partition wall is arranged between the first-stage sedimentation tank and the second-stage sedimentation tank and between the second-stage sedimentation tank and the third-stage sedimentation tank, an overflow port is arranged on the partition wall, a first filter screen is arranged on the overflow port, a cover plate is arranged on the water collecting pit, a water inlet is arranged on the cover plate corresponding to the first-stage sedimentation tank, and a drainage port is arranged on the third-stage sedimentation tank.

[0007] Preferably, the water inlet is connected with a water inlet pipeline, and the drainage port is connected with a drainage pipeline.

[0008] Preferably, inclined hole passages are arranged on the first-stage sedimentation tank, the second-stage sedimentation tank and the third-stage sedimentation tank, and a staircase is arranged on the inclined surface of the inclined hole passage.

[0009] Preferably, a dam is arranged in the third-stage sedimentation tank, a flow-through hole is arranged on the dam, and a second filter screen is slidably arranged on the side of the dam away from the drainage port.

[0010] Preferably, a first sliding groove is arranged on the partition wall, and the first filter screen is slidably arranged in the first sliding groove.

[0011] Preferably, the water inlet is located above the primary sedimentation tank; the interior of the primary sedimentation tank is provided with an anti-scouring plate, which is elastically arranged along the depth direction of the primary sedimentation tank.

[0012] Preferably, the inner wall of the primary sedimentation tank is provided with a mounting plate, the mounting plate is provided with a mounting hole, the anti-scouring plate is provided with a mounting column extending downward, the mounting column is in sliding fit with the mounting hole; a spring is sleeved on the mounting column, one end of the spring abuts against the anti-scouring plate, and the other end of the spring abuts against the mounting plate.

[0013] The drainage device disclosed by the application is suitable for tailing ponds, a water inlet on a cover plate is used for inflow of accumulated water in the tailing pond, after inflow, the water is subjected to three-stage sedimentation and then discharged from a drainage port, compared with a traditional water pump suction mode, the drainage device can continuously and quickly complete installation of the drainage device during construction of the tailing pond, thereby accelerating construction progress, reducing construction cost, saving construction period, and without any power and transmission equipment of power generation equipment, the drainage device is constructed on site, has low cost and high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the application;

[0015] Figure 2 It is a schematic diagram of the internal structure of the sump;

[0016] Figure 3 It is Figure 2 It is a schematic diagram of the internal structure of the sump;

[0017] Figure 4 It is Figure 2 It is a schematic diagram of the internal structure of the sump;

[0018] Figure 5 It is Figure 4 It is a schematic diagram of the internal structure of the sump;

[0019] In the figure:

[0020] 1, sump; 10, primary sedimentation tank; 100, anti-scouring plate; 101, mounting column; 102, spring; 103, mounting plate; 11, secondary sedimentation tank; 12, tertiary sedimentation tank; 13, partition wall; 130, first filter screen; 131, first chute; 14, dam; 140, second filter screen; 141, second chute; 15, inclined hole passage; 150, staircase; 16, drainage pipeline; 2, cover plate; 20, water inlet pipeline. DETAILED DESCRIPTION

[0021] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0022] like Figures 1-5 As shown, a drainage device suitable for tailings ponds includes a collection pit 1. The collection pit 1 is equipped with a primary sedimentation tank 10, a secondary sedimentation tank 11, and a tertiary sedimentation tank 12. A partition wall 13 is provided between the primary sedimentation tank 10 and the secondary sedimentation tank 11, and between the secondary sedimentation tank 11 and the tertiary sedimentation tank 12. An overflow port is provided on the partition wall 13, and a first filter screen 130 is provided on the overflow port. A cover plate 2 is provided on the collection pit 1. A water inlet is provided on the cover plate 2 corresponding to the portion of the primary sedimentation tank 10, and a drain outlet is provided on the tertiary sedimentation tank 12.

[0023] Water collection pit 1 is excavated at the bottom of the tailings dam and is formed by concrete pouring.

[0024] The interior of the water collection pit 1 is divided into a primary sedimentation tank 10, a secondary sedimentation tank 11, and a tertiary sedimentation tank 12 by a partition wall 13, and an overflow outlet is provided at the top of the partition wall 13 for the flow of water after each sedimentation stage.

[0025] The inlet on cover plate 2 is used for the flow of accumulated water in the tailings dam. After flowing in, the water undergoes three stages of sedimentation and is then discharged from the outlet. Compared with the traditional method of using water pumps for suction, this drainage device can be installed continuously and quickly during the construction of the tailings dam, which speeds up the construction progress, reduces construction costs, and saves construction time. Moreover, it does not require any power or transmission equipment for power generation, and can be constructed on-site, which is low-cost and highly efficient.

[0026] In some further embodiments, the inlet is connected to an inlet pipe 20, and the outlet is connected to a drain pipe 16.

[0027] The inlet is used to connect to the inlet pipe 20. There can be multiple inlet pipes 20 to introduce water from different locations in the tailings pond into the collection pit 1. The drainage pipe 16 is used to discharge the water.

[0028] For example, the water inlet pipe 20 and the drainage pipe 16 can be made of PVC pipe.

[0029] In some further embodiments, the primary sedimentation tank 10, the secondary sedimentation tank 11, and the tertiary sedimentation tank 12 are all provided with inclined hole channels 15, and the inclined surface of the inclined hole channels 15 is provided with ladders 150.

[0030] Correspondingly, the inclined hole passages 15 are arranged on the side walls of the first-stage sedimentation tank 10, the second-stage sedimentation tank 11 and the third-stage sedimentation tank 12, the bottoms of the inclined hole passages 15 correspond to the mutual communication of the respective sedimentation tanks, and the inclined hole passages 15 are integrally poured with the water collecting pit 1. The inclined hole passages 15 are further provided with staircases 150 on the inclined surfaces thereof, which are used for the workers to enter the inside of the water collecting pit 1.

[0031] A cover can be arranged above the inclined hole passage 15.

[0032] When the sediment needs to be cleaned or the water collecting pit 1 needs to be maintained, the workers can enter the inside of the water collecting pit 1 through the inclined hole passage 15. Since the inclined hole passage 15 is arranged in an inclined manner, the workers are more convenient and safe in the process of entering and exiting.

[0033] In some further embodiments, the third-stage sedimentation tank 12 is provided with a dam 14, the dam 14 is provided with flow-through holes, and the side of the dam 14 away from the water outlet is slidingly provided with a second filter screen 140.

[0034] Since the water flow after passing through the third-stage sedimentation tank 12 will be discharged outside the water collecting pit 1, in order to avoid the sediment from entering the water drainage pipeline 16 through the water outlet, the dam 14 is arranged in the third-stage sedimentation tank 12 to block the flow of the sediment to the water outlet.

[0035] The entire cross section of the dam 14 is in a right-angled trapezoidal structure to ensure the impact ability of the dam 14 on the sediment and the water flow.

[0036] In order to further block impurities from entering the water outlet, the second filter screen 140 is slidingly arranged on the side of the dam 14 away from the water outlet. The second filter screen 140 can slide out of the dam 14. Specifically, a second sliding groove 141 can be arranged on the dam 14, and the second filter screen 140 is slidingly arranged in the second sliding groove 141.

[0037] In some further embodiments, the partition wall 13 is provided with a first sliding groove 131, and the first filter screen 130 is slidingly arranged in the first sliding groove 131.

[0038] In order to avoid the existence of impurities in the water flow through the overflow port, the first sliding groove 131 is arranged on the partition wall 13, and the first filter screen 130 is slidingly arranged in the first sliding groove 131.

[0039] The overflow hole is covered by the first filter screen 130 to filter out impurities entering the next-stage sedimentation tank 10.

[0040] In some further embodiments, the water inlet is located above the first-stage sedimentation tank 10, and the inside of the first-stage sedimentation tank 10 is provided with an anti-scouring plate 100, which is elastically arranged along the depth direction of the first-stage sedimentation tank 10.

[0041] Since the water inlet is located below the sedimentation tank, when the water flow enters the primary sedimentation tank 10 from the water inlet pipe 20, the falling water flow will impact the water flow in the primary sedimentation tank 10, greatly causing the water flow in the primary sedimentation tank 10 to be turbulent, and also causing the sediment to be dispersed, thereby destroying the effect of sedimentation.

[0042] Based on this, the anti-scouring plate 100 is arranged in the primary sedimentation tank 10, and the water flow entering the water collecting pit 1 from the water inlet will first impact the anti-scouring plate 100, and then the impact force of the water flow is weakened before flowing into the primary sedimentation tank 10, thereby avoiding causing the sediment in the water collecting pit 1 to be turbid.

[0043] In some further embodiments, the inner wall of the primary sedimentation tank 10 is provided with a mounting plate 103, the mounting plate 103 is provided with a mounting hole, the anti-scouring plate 100 is provided with a mounting column 101 extending downward, and the mounting column 101 is in sliding fit with the mounting hole; a spring 102 is sleeved on the mounting column 101, one end of the spring 102 abuts against the anti-scouring plate 100, and the other end abuts against the mounting plate 103.

[0044] In order to further slow down the impact force of the water flow, the anti-scouring plate 100 is elastically arranged.

[0045] For example, the mounting plate 103 is arranged on the inner wall of the primary sedimentation tank 10, and the mounting plate 103 is provided with four mounting holes, respectively located at four corner positions of the primary sedimentation tank 10, the mounting column 101 arranged below the anti-scouring plate 100 is in sliding fit in the mounting hole, and the spring 102 is sleeved on the mounting column 101, one end of the spring 102 abuts against the anti-scouring plate 100, and the other end abuts against the mounting plate 103, so as to realize the elasticity of the mounting plate 103 under the impact of the water flow, so as to further buffer the impact of the water flow.

[0046] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A drainage device suitable for use in a tailings dam, characterised in that, The water collecting pit (1) is internally provided with a first-stage sedimentation tank (10), a second-stage sedimentation tank (11) and a third-stage sedimentation tank (12), a partition wall (13) is arranged between the first-stage sedimentation tank (10) and the second-stage sedimentation tank (11) and between the second-stage sedimentation tank (11) and the third-stage sedimentation tank (12), an overflow port is arranged on the partition wall (13), a first filter screen (130) is arranged on the overflow port, a cover plate (2) is arranged on the water collecting pit (1), a water inlet is arranged on the cover plate (2) corresponding to the first-stage sedimentation tank (10), and a water outlet is arranged on the third-stage sedimentation tank (12).

2. The drainage device suitable for tailing ponds as claimed in claim 1 wherein, The water inlet is connected with a water inlet pipeline (20), and the water outlet is connected with a water outlet pipeline (16).

3. The drainage device suitable for tailing ponds as claimed in claim 2 wherein, The first-stage sedimentation tank (10), the second-stage sedimentation tank (11) and the third-stage sedimentation tank (12) are all provided with inclined hole passages (15), and a staircase (150) is arranged on the inclined surface of the inclined hole passage (15).

4. The drainage arrangement suitable for tailing ponds as claimed in claim 3 wherein, A partition dam (14) is arranged in the third-stage sedimentation tank (12), the partition dam (14) is provided with a flow-through hole, and a second filter screen (140) is slidably arranged on the side of the partition dam (14) away from the water outlet.

5. The drainage arrangement suitable for tailing ponds as claimed in claim 4 wherein, The partition wall (13) is provided with a first sliding groove (131), and the first filter screen (130) is slidably arranged in the first sliding groove (131).

6. The drainage arrangement suitable for tailing ponds as claimed in claim 5 wherein, The water inlet is located above the first-stage sedimentation tank (10), the first-stage sedimentation tank (10) is internally provided with an anti-scouring plate (100), and the anti-scouring plate (100) is elastically arranged along the depth direction of the first-stage sedimentation tank (10).

7. The drainage arrangement suitable for tailing ponds as claimed in claim 6 wherein, An installation plate (103) is arranged on the inner wall of the first-stage sedimentation tank (10), the installation plate (103) is provided with an installation hole, an installation column (101) is downwardly and extendingly arranged on the anti-scouring plate (100), the installation column (101) is slidably connected with the installation hole, a spring (102) is sleeved on the installation column (101), one end of the spring (102) abuts against the anti-scouring plate (100), and the other end of the spring (102) abuts against the installation plate (103).

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