Tailing pond drainage concrete culvert detection sampling device

Abstract

The utility model relates to a detection sampling device for a drainage concrete culvert of a tailing pond. The detection sampling device comprises a settling tank, a water pumping pipe, a drainage pipe, a water pump, a fixing assembly, a liquid level sensor, a first flowmeter, a second flowmeter and a controller, an input port of the water pumping pipe is located upstream of the drainage channel and faces water flow; an output port of the water pumping pipe is communicated into the settling tank, and a second flow meter is arranged on the output port; a water suction pump is arranged in the middle of the water suction pipe; the other end of the drainage pipe is communicated to the downstream of the drainage channel; the liquid level sensor and the first flowmeter are arranged at the upstream of the water pumping pipe; the controller is in control connection with the water suction pump, the liquid level sensor, the first flow meter and the second flow meter. According to the utility model, the water pumping pipe is arranged at the bottom of the drainage channel at the outlet of the culvert, and water flow at the bottom of the drainage channel is continuously pumped into the settling tank for settling through the water pump, so that sediment samples accumulated within a certain time are obtained, and instantaneous sampling errors can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tailing ponds, in particular to a detection and sampling device for a drainage concrete culvert of a tailing pond. Background Art

[0002] A tailing pond is a concentrated stacking site for a large amount of tailing waste generated in the mining production process. The tailing slurry in the tailing pond is often discharged through a drainage culvert. The sediment in the tailing pond culvert drainage, especially suspended particles and heavy metal particles, will not only affect the transparency and water quality of the water body, but may also deposit in the downstream river channel, causing long-term pollution accumulation. By regularly detecting the sediment in the drainage water, the potential threat of the tailing pond drainage to the environment can be evaluated, providing a basis for subsequent treatment measures.

[0003] The traditional water sample collection method usually directly takes a small part of the water sample from the drainage of the tailing pond for analysis. This method has obvious limitations. Direct sampling can only obtain the water sample at a certain moment. The sediment is filtered out from the water sample for detection. However, the drainage of the tailing pond is usually continuous, and the concentration of the sediment will fluctuate with time and flow rate. Single sampling cannot provide comprehensive data and there are instantaneous errors.

[0004] Based on this, it is necessary to research a detection and sampling device for a drainage concrete culvert of a tailing pond. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a detection and sampling device for a drainage concrete culvert of a tailing pond, which can effectively solve the problem of the limitation of instantaneous sampling error when detecting and sampling the sediment in the tailing pond culvert drainage.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A detection and sampling device for a drainage concrete culvert of a tailing pond, comprising a sedimentation tank, a water suction pipe, a drainage pipe, a water suction pump, a fixing component, a liquid level sensor, a first flowmeter, a second flowmeter and a controller;

[0008] A filter plate is horizontally arranged in the sedimentation tank, dividing the inside of the sedimentation tank into an overflow chamber and a sedimentation chamber up and down;

[0009] The input end of the water suction pipe is fixedly arranged at the bottom of the drainage channel of the culvert through a fixing component, and the input port of the water suction pipe is located upstream of the drainage channel and faces the water flow;

[0010] The output port of the water suction pipe passes through the filter screen and communicates with the sedimentation chamber, and a second flowmeter is arranged on the output port; a water suction pump is arranged in the middle of the water suction pipe;

[0011] One end of the drain pipe communicates with the overflow chamber, and the other end communicates with the downstream of the drainage channel;

[0012] The liquid level sensor and the first flow meter are arranged on the fixing component and are located upstream of the water extraction pipe;

[0013] The controller is respectively connected to the water extraction pump, the liquid level sensor, the first flow meter and the second flow meter in a controlled manner.

[0014] Furthermore, the fixing component includes a pipe clamp and a connecting frame; the pipe clamp is clamped and fixed on the outer periphery of the input port of the water extraction pipe. The pipe clamp is located at the bottom of the center of the drainage channel. Connecting frames are fixedly connected to both the left and right sides of the pipe clamp. Both groups of connecting frames extend upward out of the drainage channel and are detachably connected to the tops of the two side walls of the drainage channel.

[0015] Furthermore, relatively facing threaded rods are respectively fixedly connected to the two groups of connecting frames, and the two groups of threaded rods are located in the drainage channel;

[0016] A threaded sleeve is threadedly connected between the two threaded rods. The thread directions of the two threaded rods are opposite. When the two threaded rods move away from each other through the threaded sleeve, the two groups of connecting frames are respectively abutted and fixed on the two side walls of the drainage channel.

[0017] Furthermore, a mounting seat is arranged on the filter plate, and a germicidal lamp is detachably mounted on the mounting seat. The germicidal lamp extends downward through the filter plate and into the sedimentation chamber.

[0018] Furthermore, an intercepting grille is arranged at the input port of the water extraction pipe.

[0019] The beneficial effects of the above technical solutions are as follows:

[0020] (1) By arranging a water extraction pipe at the bottom of the drainage channel at the exit of the culvert in the present utility model, the water flow at the bottom of the drainage channel is continuously extracted into the sedimentation tank through a water extraction pump for sedimentation, so as to obtain a sediment sample accumulated within a certain period of time, which can avoid instantaneous sampling errors and make the data more representative. According to the detection data of the first flow meter and the liquid level sensor, the controller can calculate the unit time drainage volume in the current drainage channel, and combine the data of the second flow meter to obtain the water extraction volume currently pumped into the sedimentation tank. The controller adjusts the power of the water extraction pump in real time according to the current drainage volume of the drainage channel, so as to ensure that the water extraction volume and the drainage volume are dynamically maintained at a fixed ratio to adapt to the dynamic change of the drainage volume of the drainage channel, making the sampling process more balanced and representative.

[0021] (2)When the present utility model is in use, it is not necessary to transform the existing drainage channel structure, and it can be moved and transported, with quick deployment. The water in the drainage channel is pumped out according to a fixed ratio by the water extraction pipe and naturally precipitated in the sedimentation chamber, without intercepting and filtering the drainage channel, so that the sediment content in the current water flow can be accurately obtained, and at the same time, the influence on the drainage function of the drainage channel is small and its normal flood discharge function is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a top view schematic diagram of the present utility model;

[0023] Figure 2 The sedimentation tank of the present utility model is from Figure 1 a rotating sectional view in the AA direction;

[0024] Figure 3 The drainage channel is along Figure 1 a forward view in the water flow direction;

[0025] Figure 4 is an assembly schematic diagram of the filter plate, mounting seat and germicidal lamp.

[0026] Reference numerals: 1 is the sedimentation tank, 2 is the water extraction pipe, 3 is the drain pipe, 4 is the water extraction pump, 5 is the fixing component, 6 is the liquid level sensor, 7 is the first flowmeter, 8 is the second flowmeter, 9 is the drainage channel, 10 is the mounting seat, 11 is the germicidal lamp, 12 is the intercepting grid, 101 is the filter plate, 102 is the overflow chamber, 103 is the sedimentation chamber, 201 is the input port, 202 is the output port, 501 is the pipe clamp, 502 is the connecting frame, 503 is the threaded rod, 504 is the threaded sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:

[0028] This embodiment aims to provide a detection and sampling device for the drainage concrete culvert of a tailings pond, which is mainly used for sampling and detecting the sediment in the drainage of the culvert of the tailings pond, aiming to effectively solve the limitation problem of instantaneous sampling error when detecting and sampling the sediment in the drainage of the culvert of the tailings pond.

[0029] A detection and sampling device for the drainage concrete culvert of a tailings pond, as shown in Figure 1 and Figure 2, including a sedimentation tank 1, a water suction pipe 2, a drain pipe 3, a water pump 4, a fixing component 5, a liquid level sensor 6, a first flowmeter 7, a second flowmeter 8 and a controller; A filter plate 101 is horizontally arranged in the sedimentation tank 1, dividing the inside of the sedimentation tank 1 into an overflow chamber 102 and a sedimentation chamber 103 up and down. As the water level in the sedimentation tank 1 rises, the water will overflow from the bottom to the top over the filter plate 101, pass through the filter from the sedimentation chamber 103 and enter the overflow chamber 102. The water naturally deposits in the sedimentation chamber 103, which can prevent the filter plate 101 from being blocked; The filter plate 101 is mainly used to prevent the target sediment from being discharged from the sedimentation tank 1 when the water flow in the sedimentation chamber 103 is unstable, so as to avoid the situation that the concentration of the collected sediment is lower than the actual level.

[0030] The input port 201 end of the water suction pipe 2 is fixedly arranged at the bottom of the drainage channel 9 at the culvert outlet through the fixing component 5. The drainage channel 9 at the culvert outlet is usually rectangular, open-air and open. When the drainage at the culvert outlet turns to the drainage channel 9, the flow velocity changes significantly, which is convenient for detecting the flow velocity; The input port 201 of the water suction pipe 2 is located upstream of the drainage channel 9 and faces the water flow, so as to facilitate the extraction of the water flow.

[0031] In this embodiment, as Figure 3 , the fixing component 5 includes a pipe clamp 501 and a connecting frame 502; The pipe clamp 501 is clamped and fixed on the outer periphery of the input port 201 of the water suction pipe 2. The pipe clamp 501 is located at the bottom in the center of the drainage channel 9. Connecting frames 502 are welded to both the left and right sides of the pipe clamp 501. The connecting frame 502 is obtained by bending a steel bar. The two groups of connecting frames 502 both extend upward out of the drainage channel 9 and are detachably connected to the tops of the two side walls of the drainage channel 9. Specifically, the top of the connecting frame 502 is bent towards both sides of the drainage channel 9 and hooked on the top of the drainage channel 9.

[0032] Further, in order to enhance the stability of the fixing component 5, threaded rods 503 facing each other are respectively welded to the two groups of connecting frames 502, and the two groups of threaded rods 503 are located in the drainage channel 9; A threaded sleeve 504 is threadedly connected between the two threaded rods 503. The threads of the two threaded rods 503 face in opposite directions, so that when the two threaded rods 503 move away from each other through the threaded sleeve 504, the two groups of connecting frames 502 are respectively abutted and fixed on the two side walls of the drainage channel 9, thereby enhancing the stability of the fixing component 5.

[0033] The output port 202 of the water suction pipe 2 passes through the filter screen and communicates with the sedimentation chamber 103. A second flowmeter 8 is arranged on the output port 202 to detect the actual water extraction volume entering the sedimentation tank 1; A water pump 4 is arranged in the middle of the water suction pipe 2 to provide the power for pumping water. One end of the drain pipe 3 communicates with the overflow chamber 102, and the other end communicates with the downstream of the drainage channel 9. When the water level in the sedimentation chamber 103 rises and passes through the filter plate 101 for filtration, it overflows from the drain pipe 3 to the downstream of the drainage channel 9.

[0034] As Figure 3 , the liquid level sensor 6 and the first flowmeter 7 are fixedly arranged on the fixed assembly 5 and located upstream of the water extraction pipe 2. The liquid level sensor 6 can detect the current liquid level height of the drainage channel 9. By measuring the length of the drainage channel 9, the cross-sectional area of the current upstream water flow can be calculated. The first flowmeter 7 uses a radar sensor and is mainly used to detect the water flow velocity upstream of the drainage channel 9. Combining with the cross-sectional area of the water flow, the drainage volume per unit time can be calculated.

[0035] The controller is respectively connected to the water extraction pump 4, the liquid level sensor 6, the first flowmeter 7 and the second flowmeter 8 for control. According to the detection data of the first flowmeter 7 and the liquid level sensor 6, the controller can calculate the drainage volume per unit time in the current drainage channel 9, and obtain the water extraction volume pumped into the sedimentation tank 1 in combination with the data of the second flowmeter 8. The controller adjusts the power of the water extraction pump 4 in real time according to the current drainage volume of the drainage channel 9, so as to ensure that the water extraction volume of the water extraction pipe 2 and the drainage volume upstream of the drainage channel 9 are dynamically maintained at a fixed ratio to adapt to the dynamic change of the drainage volume of the drainage channel 9. In addition, through the data record of the second flowmeter 8, the total water extraction volume during the sampling time can be obtained, and combined with the sediment obtained by sampling and the fixed ratio during water extraction, the average sediment concentration of the drainage channel 9 during the sampling period can be calculated.

[0036] Furthermore, considering the possible problem of bacterial growth in the sedimentation chamber 103, which may contaminate the sediment sample and cause peculiar smell, and its oxidation effect will also affect the state of the sediment, such as Figure 4 , a mounting seat 10 is fixed on the filter plate 101. The mounting seat 10 is provided with a screwing and clamping structure, so that a germicidal lamp 11 can be detachably installed. The germicidal lamp 11 can be installed by inserting and rotating it. Specifically, the detachable structure can also be a threaded type, a clamping type, etc. The germicidal lamp 11 extends downward through the filter plate 101 into the sedimentation chamber 103 to perform germicidal treatment on the sedimentation chamber 103 and reduce the bacterial content.

[0037] Furthermore, an intercepting grille 12 is arranged on the input port 201 of the water extraction pipe 2 to prevent large sundries such as branches from entering the sedimentation tank 1.

Claims

1. A detection and sampling device for a drainage concrete culvert in a tailings pond, characterized in that: It includes a sedimentation tank (1), a water suction pipe (2), a drain pipe (3), a water pump (4), a fixing component (5), a liquid level sensor (6), a first flowmeter (7), a second flowmeter (8) and a controller; A filter plate (101) is horizontally arranged in the sedimentation tank (1), dividing the inside of the sedimentation tank (1) into an overflow chamber (102) and a sedimentation chamber (103) up and down; The input port (201) end of the water suction pipe (2) is fixedly arranged at the bottom of the drainage channel (9) of the culvert through the fixing component (5), and the input port (201) of the water suction pipe (2) is located upstream of the drainage channel (9) and faces the water flow; The output port (202) of the water suction pipe (2) penetrates through the filter screen and communicates with the sedimentation chamber (103), and a second flowmeter (8) is arranged on the output port (202); a water pump (4) is arranged in the middle of the water suction pipe (2); One end of the drain pipe (3) communicates with the overflow chamber (102), and the other end communicates with the downstream of the drainage channel (9); The liquid level sensor (6) and the first flowmeter (7) are arranged on the fixing component (5) and are located upstream of the water suction pipe (2); The controller is respectively connected to the water pump (4), the liquid level sensor (6), the first flowmeter (7) and the second flowmeter (8) for control; 2. The tailings pond drainage concrete culvert inspection and sampling device according to claim 1, characterized in that: The fixing component (5) includes a pipe clamp (501) and a connecting frame (502); the pipe clamp (501) is clamped and fixed on the outer periphery of the input port (201) of the water suction pipe (2), the pipe clamp (501) is located at the bottom in the center of the drainage channel (9), and connecting frames (502) are fixedly connected to both the left and right sides of the pipe clamp (501). Both groups of connecting frames (502) extend upward out of the drainage channel (9) and are detachably connected to the tops of the two side walls of the drainage channel (9).

3. The tailings pond drainage concrete culvert inspection and sampling device according to claim 2, characterized in that: Relatively facing threaded rods (503) are fixedly connected to both groups of connecting frames (502), and the two threaded rods (503) are located in the drainage channel (9); A threaded sleeve (504) is threadedly connected between the two threaded rods (503). The threads of the two threaded rods (503) face in opposite directions, so that when the two threaded rods (503) move away from each other through the threaded sleeve (504), the two groups of connecting frames (502) are respectively abutted and fixed on the two side walls of the drainage channel (9).

4. The detection and sampling device for drainage concrete culverts in a tailings pond according to claim 1, wherein: An installation seat (10) is arranged on the filter plate (101), and a germicidal lamp (11) is detachably installed on the installation seat (10). The germicidal lamp (11) extends downward through the filter plate (101) into the sedimentation chamber (103).

5. The detection and sampling device for the drainage concrete culvert of a tailings pond according to claim 1, wherein: An interception grille (12) is arranged on the input port (201) of the water suction pipe (2).

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