Water level regulating device for convenient installation of arch plate in tailings pond overflow well

Abstract

The utility model discloses a water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond. When an arch plate needs to be installed, the turbidity value of water at different water depths can be measured by a turbidity measuring device, and the height of a clearing layer can also be obtained. Then, the start and stop of a siphon device can be controlled according to the height of the clearing layer and / or the turbidity of water at different depths. When the siphon device is turned on, the surface water in the reservoir is quickly drawn to the wellhead of the overflow well for discharge through the siphon effect, so that the water level in the reservoir is lower than the installation height of the arch plate, ensuring that no overflow water flows out when the arch plate is installed, which is conducive to the bonding of adhesives between the arch plates, and improving the installation quality of the arch plate and the water quality of the return water of the tailings pond. In addition, the turbidity measuring device and the siphon device can automatically move downward as the water level in the reservoir drops, so as to facilitate real-time turbidity measurement and continuous siphon drainage during the drainage process, and there is no need to adjust the upper and lower positions of the turbidity measuring device and the siphon device through an additional lifting and adjusting device, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of water level regulation of tailings ponds, in particular to a water level regulating device which is convenient for installing an arch plate of an overflow well of a tailings pond. Background Art

[0002] Tailings pond is an important facility in the mine and also a major source of danger. The construction of tailings pond and subsequent safety supervision have attracted great attention from most countries that are mainly engaged in mining. The main monitoring contents of tailings pond include reservoir water level, rainfall in the reservoir area, surface displacement of dam body, internal displacement of dam body, dam body infiltration line, dry beach length, etc. Among them, reservoir water level is the top priority of tailings pond monitoring. If the water level in the reservoir is too high and the dry beach length is insufficient, the stability of the dam body will be reduced. Especially for mountain-side tailings ponds, the initial dam and the later tailings dam are large in engineering volume, the reservoir area is short in depth, the dry beach length and water clarification distance are limited, the flood control capacity is low, the flood control conditions are poor, and the management and maintenance are relatively complicated. Therefore, the reservoir water level monitoring and control of this type of tailings pond is particularly important, which plays an important role in the safe operation of tailings ponds. In addition, the surface water in the reservoir is relatively clean and needs to be recycled to the return water pool under the dam for recycling as water for mineral processing production. The return water of the tailings pond is an important source of water for mineral processing production. At present, the water level in the tailings pond is usually controlled by installing an arch plate at the overflow well of the tailings pond. When the water level in the reservoir reaches a certain height, the water in the tailings pond will overflow from the arch plate of the overflow well. However, when installing the arch plate, the overflow water from the overflow well mouth will affect the bonding effect of the adhesive between the arch plates, thereby affecting the quality of the arch plate installation, which may cause gaps between the arch plates, resulting in leakage of tailings in the tailings pond, and even causing the tailings pond to burst. Although the water in the reservoir can be temporarily pumped to the overflow well mouth by a water pump when installing the arch plate, so that the water level in the reservoir is lower than the height of the arch plate installation position, thereby ensuring the quality of the arch plate installation, the water quality of the clarified layer is unstable during the operation of the tailings pond, and the water suction port of the water pump is buried deep, resulting in poor quality of the return water pumped by the water pump, which affects the subsequent mineral processing production. Utility Model Content

[0003] The utility model provides a water level regulating device which is convenient for installing an arch plate of an overflow well of a tailings pond, improves the installation quality of the arch plate and the water quality of the return water of the tailings pond, flexibly adjusts the water level in the reservoir, reduces the risk of dam breach of the tailings pond, and can also perform real-time turbidity measurement and continuous siphon drainage during the drainage process, without the need to adjust the upper and lower positions of the turbidity measuring device and the siphon device through an additional lifting and adjusting device, and has a simple structure.

[0004] According to one aspect of the utility model, there is provided a water level regulating device which is convenient for installing an arch plate of an overflow well of a tailings pond, comprising a first floating platform, a second floating platform, a turbidity measuring device and at least one siphon device, wherein the first floating platform and the second floating platform are movably installed on the overflow well frame and float on the water surface in the reservoir, the turbidity measuring device is installed on the first floating platform and is used to measure the turbidity values ​​of water at different water depths, and the siphon device is installed on the second floating platform and is used to utilize the siphon effect to draw surface water in the reservoir to the overflow well mouth for discharge.

[0005] Furthermore, the turbidity measuring device includes a turbidity measuring instrument, a sample feeding tube, a sampling pump, a sampling hose and a sampling hard tube. The turbidity measuring instrument is connected to the sampling pump through the sample feeding tube. One end of the sampling hose is connected to the sampling pump, and the other end is connected to the sampling hard tube. The sampling hard tube is installed on the first floating platform so as to be movable up and down, and the lower end passes through the first floating platform and extends into the water.

[0006] Furthermore, a lifting rod and a driving member are provided on the first floating platform, the sampling tube is fixedly mounted on the lifting trolley, the lifting trolley is movably mounted on the lifting rod, and the output end of the driving member is connected to the lifting trolley via a traction rope.

[0007] Furthermore, the driving member is a motor or an electric machine.

[0008] Furthermore, a lifting platform is provided on the first floating platform, and the sampling hard tube is fixedly installed on the lifting platform.

[0009] Furthermore, the siphon device includes a drainage pump, a first drainage pipe, a siphon pipe and a second drainage pipe. The drainage pump is installed on the second floating platform. The water inlet of the drainage pump is connected to the siphon pipe through the first drainage pipe. The discharge outlet is also connected to the second drainage pipe. The lower end of the second drainage pipe extends into the surface water surface in the reservoir. The siphon pipe is installed on the second floating platform, with one end extending into the surface water surface in the reservoir and the other end extending into the wellhead of the overflow well. A first valve is provided on the first drainage pipe, and a second valve is provided on the siphon pipe.

[0010] Furthermore, the siphon pipe includes a siphon hose and a siphon hard pipe, the siphon hard pipe is fixedly installed on the second floating platform and is respectively connected to the siphon hose and the first drainage pipe, the lower end of the siphon hard pipe extends into the surface water surface in the reservoir, and the lower end of the siphon hose extends into the wellhead of the overflow well.

[0011] Furthermore, a pressure sensor is provided at the lower end of the sampling hard tube for measuring the water sampling depth of the test water sample.

[0012] Furthermore, there are multiple siphon devices, and the multiple siphon devices are evenly spaced and distributed.

[0013] Furthermore, a fixing frame with a T-shaped cross section is installed on the overflow well derrick, and a connecting piece with a C-shaped cross section is fixedly installed on the first floating platform and the second floating platform. The connecting piece is sleeved on the fixing frame and can move up and down along the fixing frame.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a water level regulating device which is convenient for installing an arch plate of an overflow well of a tailings pond. When an arch plate needs to be installed, the turbidity values ​​of water at different water depths can be measured by a turbidity measuring device, and the height of a clarified layer of water in a reservoir near the overflow well can also be obtained. Then, the start and stop of a siphon device can be controlled according to the clarified layer height information and / or the turbidity information of water at different depths. When the siphon device is turned on, surface water in the reservoir can be quickly pumped to the wellhead of the overflow well for discharge through the siphon effect, so that the water level in the reservoir is lower than the installation height of the arch plate, ensuring that no overflow water flows out when the arch plate is installed, being conducive to the bonding of adhesives between the arch plates, improving the installation quality of the arch plates and the water quality of the return water of the tailings pond, being able to flexibly adjust the water level in the reservoir, and reducing the risk of dam breach of the tailings pond. Furthermore, by installing the turbidity measuring device and the siphon device on the first floating platform and the second floating platform respectively, and installing the first floating platform and the second floating platform on the overflow well frame movably up and down and floating on the water surface in the reservoir, the turbidity measuring device and the siphon device can automatically move downward as the water level in the reservoir drops, so as to perform real-time turbidity measurement and continuous siphon drainage during the drainage process, and there is no need to adjust the upper and lower positions of the turbidity measuring device and the siphon device through an additional lifting and adjusting device, and the structure is simple.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of a water level regulating device for facilitating installation of an arch plate of an overflow well of a tailings pond according to a preferred embodiment of the present application.

[0019] Figure 2 It is a schematic cross-sectional structure diagram of the matching connecting member and the fixing frame of the preferred embodiment of the present application.

[0020] Description of Reference Numerals

[0021] 1. First floating platform; 2. Second floating platform; 3. Turbidity measuring device; 4. Siphon device; 5. Fixing frame; 6. Connecting piece; 100. Overflow well frame; 31. Turbidity measuring instrument; 32. Sample feeding tube; 33. Sampling pump; 34. Sampling hose; 35. Sampling hard tube; 11. Lifting rod; 12. Driving piece; 13. Lifting trolley; 41. Drainage pump; 42. First drainage pipe; 43. Siphon pipe; 44. Second drainage pipe; 45. First valve; 46. Second valve; 47. Siphon hose; 48. Siphon hard tube. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figure 1The preferred embodiment of the present application provides a water level regulating device which is convenient for installing an arch plate of an overflow well of a tailings pond, comprising a first floating platform 1, a second floating platform 2, a turbidity measuring device 3 and at least one siphon device 4. The first floating platform 1 and the second floating platform 2 are movably installed on an overflow well derrick 100 and float on the water surface in the reservoir. The turbidity measuring device 3 is installed on the first floating platform 1 to measure the turbidity values ​​of water at different water depths. The siphon device 4 is installed on the second floating platform 2 to utilize the siphon effect to extract the surface water in the reservoir to the overflow well mouth for discharge. It can be understood that when it is necessary to install an arch plate, the turbidity value at different depths of the water in the reservoir around the overflow well is detected in real time by the turbidity measuring device 3, and the height of the clarified layer can be obtained based on the turbidity values ​​at different water depths, so that the siphon device 4 can be started and stopped according to the turbidity values ​​at different water depths and / or the height of the clarified layer. When the siphon device 4 is turned on, it draws the surface water in the reservoir to the overflow well mouth through the siphon effect and discharges it, so that the water level in the reservoir is lower than the installation height of the arch plate, ensuring that no overflow water flows out when the arch plate is installed, which is beneficial to the bonding of the adhesives between the arch plates, improving the quality of the arch plate installation, and because the siphon effect draws the surface water in the reservoir, the water quality is relatively good, ensuring the return water quality of the tailings pond. Moreover, the turbidity measuring device 3 and the siphon device 4 are respectively installed on the first floating platform 1 and the second floating platform 2, and the first floating platform 1 and the second floating platform 2 are installed on the overflow well frame 100 so as to be movable up and down and float on the water surface in the reservoir. Therefore, during the drainage process, the turbidity measuring device 3 and the siphon device 4 can automatically move downward as the water level in the reservoir drops, so as to facilitate real-time turbidity measurement and continuous siphon drainage, and there is no need to adjust the upper and lower positions of the turbidity measuring device 3 and the siphon device 4 through an additional lifting and adjusting device, and the structure is simple. In addition, the water level regulating device for facilitating the installation of the arch plate of the tailings pond overflow well also includes a controller, which is electrically connected to the turbidity measuring device 3 and the siphon device 4, respectively, and is used to control the automatic start and stop of the siphon device 4 according to the detection result of the turbidity measuring device 3, thereby realizing the automatic control of the water level regulation. For example, when the height of the clarified layer is greater than the first threshold, the controller controls the siphon device 4 to automatically open, so as to use the siphon effect to extract the water of the clarified layer in the reservoir to the overflow well mouth for discharge, and the height of the clarified layer continues to decrease. When the water level of the clarified layer is less than the second threshold, the controller controls the siphon device 4 to automatically close, thereby ensuring the water quality of the return water of the tailings reservoir, and the first threshold is greater than the second threshold. Of course, as another option, when the turbidity value at the specified water depth is detected to be less than the third threshold, the controller controls the siphon device 4 to automatically open, and when the turbidity value is detected to be greater than the fourth threshold, the controller controls the siphon device 4 to automatically close, and the third threshold is less than the fourth threshold. In addition, the controller can adopt a separately set PLC controller, installed on the first floating platform 1 or the second floating platform 2, or it can be integrated on the turbidity measuring device 3 or the siphon device 4.

[0024] It can be understood that the water level regulating device of the present embodiment is convenient for installing the arch plate of the overflow well of the tailings pond. When the arch plate needs to be installed, the turbidity value of water at different water depths can be measured by the turbidity measuring device 3, and the height of the clarified layer of water in the reservoir near the overflow well can also be obtained. The start and stop of the siphon device 4 can be controlled according to the clarified layer height information and / or the turbidity information of water at different depths. When the siphon device 4 is turned on, the surface water in the reservoir can be quickly extracted to the overflow well mouth for discharge through the siphon effect, so that the water level in the reservoir is lower than the installation height of the arch plate, ensuring that no overflow water flows out when the arch plate is installed, which is beneficial to the bonding of the adhesives between the arch plates, improves the quality of the arch plate installation and the water quality of the tailings pond return water, can flexibly adjust the water level in the reservoir, and reduces the risk of tailings pond dam breach. Furthermore, by installing the turbidity measuring device 3 and the siphon device 4 on the first floating platform 1 and the second floating platform 2 respectively, and installing the first floating platform 1 and the second floating platform 2 on the overflow well frame 100 so as to be movable up and down and float on the water surface in the reservoir, the turbidity measuring device 3 and the siphon device 4 can automatically move downward as the water level in the reservoir drops, so as to perform real-time turbidity measurement and continuous siphon drainage during the drainage process, and there is no need to adjust the upper and lower positions of the turbidity measuring device 3 and the siphon device 4 through an additional lifting and adjusting device, and the structure is simple.

[0025] Among them, the turbidity measuring device 3 includes a turbidity meter 31, a sample feeding tube 32, a sampling pump 33, a sampling hose 34 and a sampling hard tube 35. The turbidity meter 31 is connected to the sampling pump 33 through the sample feeding tube 32. One end of the sampling hose 34 is connected to the sampling pump 33, and the other end is connected to the sampling hard tube 35. The sampling hard tube 35 can be installed on the first floating platform 1 so as to be movable up and down, and the lower end passes through the first floating platform 1 and extends into the water. The turbidity meter 31 and the sampling pump 33 are both electrically connected to the controller. It can be understood that when turbidity measurement is required, the sampling hard tube 35 is moved down to a certain water depth. When the sampling pump 33 is turned on, water samples at a certain water depth can be extracted and transported to the turbidity meter 31 through the sampling hard tube 35, the sampling hose 34, the sampling pump 33, and the sample tube 32, thereby measuring the turbidity value of water at a certain water depth; then, the sampling hard tube 35 is moved down to another water depth for sampling, and the turbidity measurement is performed again. By repeating this process, the turbidity values ​​at different water depths can be obtained, and the height of the clarified layer of water in the reservoir around the overflow well can also be obtained. Since the sampling tube is divided into a sampling hose 34 and a sampling hard tube 35, the sampling pump 33 is connected to the sampling hose 34, and the sampling of water samples at different water depths can be achieved by adjusting the up and down movement of the sampling hard tube 35, which is convenient for adjusting the sampling depth. Among them, the sampling hose 34 adopts a rubber tube, and the sampling hard tube 35 adopts an iron pipe or a steel pipe. In addition, the sampling depth and sampling point interval of the sampling hard tube 35 can be set as needed. In addition, the turbidity meter 31 has a self-cleaning function, which can automatically clean the internal pipeline and the turbidity meter to prevent sediment from forming on the inner wall of the internal pipeline and affecting the accuracy of turbidity measurement.

[0026] Optionally, a lifting rod 11 and a driving member 12 are provided on the first floating platform 1, and the sampling hard tube 35 is fixedly installed on the lifting trolley 13, and the lifting trolley 13 can be installed on the lifting rod 11 so as to move up and down. The output end of the driving member 12 is connected to the lifting trolley 13 through a traction rope, and the driving member 12 is electrically connected to the controller. When it is necessary to adjust the up and down position of the sampling hard tube 35, the forward and reverse rotation of the driving member 12 is controlled to pull the lifting trolley 13 up and down on the lifting rod 11, and the structure is simple. Among them, the driving member 12 is a motor or an electric motor, preferably a motor. In addition, a lifting platform electrically connected to the controller is provided on the first floating platform 1, and the sampling hard tube 35 can also be fixedly installed on the lifting platform, and the up and down position of the sampling hard tube 35 can be adjusted by controlling the lifting platform to lift and lower.

[0027] In addition, the siphon device 4 includes a drainage pump 41, a first drainage pipe 42, a siphon pipe 43 and a second drainage pipe 44. The drainage pump 41 is installed on the second floating platform 2. The water inlet of the drainage pump 41 is connected to the siphon pipe 43 through the first drainage pipe 42. The drain outlet is also connected to the second drainage pipe 44. The lower end of the second drainage pipe 44 extends into the surface water surface in the reservoir. The siphon pipe 43 is installed on the second floating platform 2, and one end extends into the surface water surface in the reservoir, and the other end extends into the wellhead of the overflow well. The first drainage pipe 42 is provided with a first valve 45, and the siphon pipe 43 is provided with a second valve 46. The drainage pump 41, the first valve 45 and the second valve 46 are all electrically connected to the controller. It can be understood that when it is necessary to open the siphon device 4 to lower the water level in the reservoir, the drainage pump 41 is controlled to start working, and the first valve 45 and the second valve 46 are opened. When the siphon pipe 43 realizes siphon self-flow, the first valve 45 and the drainage pump 41 are closed, and the water in the clarified layer in the reservoir can be discharged into the wellhead of the overflow well. When it is necessary to close the siphon device 4, the second valve 46 can be closed. Since the water in the clarified layer in the reservoir is extracted by the siphon effect for discharge, the quality of the return water is guaranteed.

[0028] The siphon pipe 43 includes a siphon hose 47 and a siphon hard pipe 48, the siphon hard pipe 48 is fixedly mounted on the second floating platform 2 and connected to the siphon hose 47 and the first drainage pipe 42 respectively, the lower end of the siphon hard pipe 48 extends into the surface water surface in the reservoir, and the lower end of the siphon hose 47 extends into the wellhead of the overflow well. It is only necessary to adjust the position of the siphon hose 47 according to the crossbeam of the overflow well derrick 100, without disassembling the entire siphon pipe 43, and the adjustment is more convenient. The siphon hose 47 is a rubber tube, and the siphon hard pipe 48 is a steel pipe or an iron pipe.

[0029] Optionally, a pressure sensor electrically connected to the controller is provided at the lower end of the sampling tube 35 for measuring the water sampling depth of the test water sample. The controller controls the working state of the driving member 12 according to the inspection result of the pressure sensor to facilitate feedback adjustment of the water sampling depth.

[0030] In addition, there are multiple siphon devices 4, and the multiple siphon devices 4 are evenly spaced, which can increase the return water volume and reduce the disturbance of the siphon drainage to the water clarification layer in the reservoir, which is beneficial to improving the return water quality.

[0031] In addition, combined Figure 2 As shown, a fixing frame 5 with a T-shaped cross section is installed on the overflow well frame 100, and a connecting member 6 with a C-shaped cross section is fixedly installed on the first floating platform 1 and the second floating platform 2. The connecting member 6 is sleeved on the fixing frame 5 and can move up and down along the fixing frame 5. As another option, a vertical slide rail can also be installed on the overflow well frame 100, and a slider can be fixedly installed on the side of the first floating platform 1 and the second floating platform 2, and the slider is limited in the slide rail, and the automatic up and down movement of the floating platform under the action of buoyancy is realized by the cooperation of the slider and the slide rail.

[0032] Optionally, the water level regulating device also includes a water level monitoring device electrically connected to the controller, which is installed on the first floating platform 1 or the second floating platform 2 and is used to detect the water level in the reservoir. When it is monitored that the water level in the reservoir exceeds a preset threshold, the controller controls the siphon device 4 to open, thereby performing separate drainage.

[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water level regulating device for facilitating the installation of an arch plate in an overflow well of a tailings pond, characterized in that: The invention comprises a first floating platform (1), a second floating platform (2), a turbidity measuring device (3) and at least one siphon device (4); the first floating platform (1) and the second floating platform (2) are mounted on an overflow well frame (100) so as to be movable up and down and float on the water surface in the reservoir; the turbidity measuring device (3) is mounted on the first floating platform (1) and is used to measure the turbidity values ​​of water at different water depths; the siphon device (4) is mounted on the second floating platform (2) and is used to draw surface water in the reservoir to the wellhead of the overflow well by means of siphon action and discharge the water.

2. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 1, characterized in that: The turbidity measuring device (3) comprises a turbidity measuring instrument (31), a sample feeding tube (32), a sampling pump (33), a sampling hose (34) and a sampling hard tube (35). The turbidity measuring instrument (31) is connected to the sampling pump (33) via the sample feeding tube (32). One end of the sampling hose (34) is connected to the sampling pump (33), and the other end is connected to the sampling hard tube (35). The sampling hard tube (35) is installed on the first floating platform (1) so as to be movable up and down, and the lower end thereof passes through the first floating platform (1) and then extends into the water.

3. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 2, characterized in that: The first floating platform (1) is provided with a lifting rod (11) and a driving member (12); the sampling hard tube (35) is fixedly mounted on a lifting trolley (13); the lifting trolley (13) is mounted on the lifting rod (11) so as to be movable up and down; and the output end of the driving member (12) is connected to the lifting trolley (13) via a traction rope.

4. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 3 is characterized in that: The driving member (12) is a motor or an electric machine.

5. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 2, characterized in that: A lifting platform is provided on the first floating platform (1), and the sampling hard tube (35) is fixedly installed on the lifting platform.

6. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 1, characterized in that: The siphon device (4) comprises a drainage pump (41), a first drainage pipe (42), a siphon pipe (43) and a second drainage pipe (44); the drainage pump (41) is installed on the second floating platform (2); the water inlet of the drainage pump (41) is connected to the siphon pipe (43) through the first drainage pipe (42); the water outlet is also connected to the second drainage pipe (44); the lower end of the second drainage pipe (44) extends into the surface water surface of the reservoir; the siphon pipe (43) is installed on the second floating platform (2), with one end extending into the surface water surface of the reservoir and the other end extending into the wellhead of the overflow well; the first drainage pipe (42) is provided with a first valve (45), and the siphon pipe (43) is provided with a second valve (46).

7. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 6, characterized in that: The siphon pipe (43) comprises a siphon hose (47) and a siphon hard pipe (48). The siphon hard pipe (48) is fixedly mounted on the second floating platform (2) and is respectively connected to the siphon hose (47) and the first drainage pipe (42). The lower end of the siphon hard pipe (48) extends into the surface water surface in the reservoir, and the lower end of the siphon hose (47) extends into the wellhead of the overflow well.

8. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 2, characterized in that: A pressure sensor is provided at the lower end of the sampling hard tube (35) for measuring the water sampling depth of the test water sample.

9. The water level regulating device for facilitating the installation of an arch plate of an overflow well of a tailings pond as claimed in claim 1, characterized in that: The number of the siphon devices (4) is multiple, and the multiple siphon devices (4) are evenly spaced and distributed.

10. The water level regulating device for facilitating installation of an arch plate of an overflow well of a tailings pond as claimed in claim 1, characterized in that: A fixing frame (5) with a T-shaped cross section is installed on the overflow well frame (100), and a connecting piece (6) with a C-shaped cross section is fixedly installed on the first floating platform (1) and the second floating platform (2). The connecting piece (6) is sleeved on the fixing frame (5) and can move up and down along the fixing frame (5).

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