Path simulation system and method for purifying slime water from coal gangue in goaf

Abstract

The invention provides a path simulation system for purifying coal slime water from coal gangue in a goaf, which comprises a coal slime water making system, a coal gangue filtering and purifying system, a filtered water receiving and detecting system and an information monitoring system, the coal slime water making system is communicated with the coal gangue filtering and purifying system through a water pipe, and the coal gangue filtering and purifying system comprises a deformable filling pipe. The bottom of the deformable filling pipe is supported by a plurality of height adjusters, the tail end of the deformable filling pipe is communicated with a filtered water receiving and detecting system, each system is provided with a monitor, and the monitors are connected with an information monitoring system. The invention further provides a path simulation method for purifying the coal slime water through the coal gangue in the goaf, and the system solves the problem that the purification effect is poor due to the fact that an existing coal slime water treatment device is difficult to simulate the up-and-down fluctuation form of an actual bottom plate.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine water treatment simulation devices, and specifically relates to a path simulation system for purifying coal slime water with coal gangue in goaf areas, and also relates to a path simulation method for purifying coal slime water with coal gangue in goaf areas. Background Art

[0002] Coal slime water contains a large amount of suspended particulate matter, heavy metal ions and organic pollutants. If it is discharged directly without treatment, it will cause serious pollution to the surrounding environment. Underground treatment can effectively remove these pollutants and reduce harm to the environment. At the same time, coal mining production is a large consumer of water resources. Underground treatment of coal slime water can realize the recycling of water resources and reduce dependence on external water resources. The transportation and treatment of coal slime water require a lot of money and energy, and underground treatment can also significantly reduce these costs. The accumulation of coal slime water will increase the amount of water inflow in the mine. Underground treatment can reduce water pressure in time and reduce the risk of water disasters.

[0003] However, in the process of coal mine production, the treatment of coal slime water is also a thorny problem. Coal slime water contains a large amount of suspended matter, heavy metal ions and organic pollutants. The treatment methods of coal slime water mainly include physical, chemical and biological methods. However, these methods have problems such as high treatment cost, unstable treatment effect and large floor space. As solid waste in the coal mine production process, coal gangue has certain adsorption and filtration properties, which can be used to treat suspended matter, heavy metal ions and other pollutants in coal slime water. However, the different undulating shapes of the bottom plate of the coal seam will cause the distribution, accumulation and permeability of coal gangue in the goaf to change, thereby affecting the purification effect. In the existing coal mine water treatment technology, the method for purifying coal slime water with coal gangue in the goaf mostly adopts a fixed loading device, which is difficult to simulate the ups and downs of the actual bottom plate, resulting in poor purification effect. Therefore, it is necessary to study a coal slime water filling device and method that can simulate the ups and downs of the bottom plate to improve the purification effect of coal slime water. Summary of the invention

[0004] The first purpose of the present invention is to provide a path simulation system for purifying coal slime water from coal gangue in goaf areas, which solves the problem that the existing coal slime water treatment devices are difficult to simulate the ups and downs of the actual floor, resulting in poor purification effect.

[0005] The second object of the present invention is to provide a path simulation method for purifying coal slime water with coal gangue in goaf.

[0006] The first technical solution adopted by the present invention is: a path simulation system for purifying coal slime water from coal gangue in goaf, including a coal slime water production system, a coal gangue filtration and purification system, a filtered water receiving and detection system and an information monitoring system. The coal slime water production system includes a water source supply box, a water storage tank, a coal slime mixing box, and a coal slime water mixer which are sequentially connected through water pipes. A turbidity monitor is arranged at the bottom of the coal slime water mixer; the coal gangue filtration and purification system includes a deformable filling pipe, and the coal slime water mixer is connected through a water pipe and transports the coal slime water to a deformable filling pipe. Deformable filling tube, the deformable filling tube is arranged on the supporting platform of the filtration and purification system, and the bottom is supported by a number of height adjusters, and a flow monitor and a flow velocity monitor are arranged at the inlet of the deformable filling tube; the end of the deformable filling tube is connected to the filtered water receiving detection system, and the filtered water receiving detection system includes a filtered water receiving box, and a turbidity monitor and an ultrasonic mud-water interface meter are arranged inside the filtered water receiving box; the turbidity monitor, flow monitor, flow velocity monitor, and ultrasonic mud-water interface meter are all connected to the information monitoring system.

[0007] The first technical solution adopted by the present invention is also characterized in that: Furthermore, a water pump is arranged at the bottom of the water supply box, and is connected to the water storage tank through the water pump and a water pipe.

[0008] Furthermore, a water stop clamp is provided on the water pipe at the water outlet of the water tank.

[0009] Furthermore, fixed support columns are provided at the bottom of the water tank and the coal slime mixing box.

[0010] Furthermore, an agitator is arranged inside the coal slurry water mixer, and a retractable hydraulic support is arranged at the bottom.

[0011] Furthermore, the height adjuster includes an adjusting screw and an adjusting nut.

[0012] Furthermore, the interior of the deformable filling tube is filled with coal gangue, and the deformable filling tube includes a filling tube wrapped with a plastic tube, and the interior of the filling tube is a strength-reinforced steel wire.

[0013] The second technical solution adopted by the present invention is: a path simulation method for purifying coal slime water with coal gangue in goaf, using the above-mentioned path simulation system for purifying coal slime water with coal gangue, and the specific implementation steps are as follows: Step 1: According to the test requirements, fill the deformable filling tube with coal gangue and place it on the supporting platform; Step 2: According to the shape design, the height of the deformable filling tube in different areas is adjusted by adjusting the adjusting nut to form a predetermined shape; Step 3: According to the final shape of the deformable filling pipe, the retractable hydraulic support is adjusted so that the height of the coal slurry water mixer is completely higher than the deformable filling pipe, and a water tank, a coal slurry mixing box, a stirrer, and a coal slurry water mixer are arranged on the fixed support column, and the height is set so that the water tank is the highest, the coal slurry mixing box is the second, and the coal slurry water mixer is the lowest; Step 4: Connect the water supply box, water pump, water storage tank, coal slurry mixing box, coal slurry water mixer, deformable filling pipe and filtered water receiving box through water pipes; Step 5: Add water stop clamps to the water pipes, connect flow monitors and flow velocity monitors, and install turbidity monitors and ultrasonic mud-water interface meters in the coal slurry water mixer and filtered water receiving box, and connect the signals to the information monitoring system; Step 6: Add water to the water supply tank, add coal slime to the coal slime mixing tank, start the water pump and the agitator, and at the same time cut off the connection between the coal slime water mixer and the deformable filling pipe through the water stop clamp; Step 7: Monitor the parameters of the coal slurry water in the coal slurry water mixer by setting a turbidity monitor, and when the parameters reach a predetermined parameter value, open the water stop clamp to continuously discharge the coal slurry water into the deformable filling pipe; Step 8: When the water level in the filtered water receiving box reaches the expected liquid level, the connection between the deformable filling pipe and the filtered water receiving box is cut off by the water stop clamp, and the water pump is immediately turned off; Step 9: Through the information monitoring system, read the turbidity monitor, flow monitor, flow velocity monitor, and ultrasonic mud-water interface meter to monitor information transmission and conduct data analysis.

[0014] The beneficial effects of the present invention are: 1. The system of the present invention includes a coal slurry water production system, a coal gangue filtering and purification system, a filtered water receiving and detection system and an information monitoring system 20, which can realize the precise production of coal slurry water, the changes in parameters such as the particle size, precision, and purification path of the filling gangue, and can monitor the purification effect in real time; 2. The variable-shape coal gangue filtration and purification system in the system of the present invention can simulate the ups and downs of the actual coal seam floor, so as to study the influence of the ups and downs of the floor on the filtration effect; 3. The system of the present invention is simple to operate, has a clear monitoring system, and has abundant relevant variables that can be studied, and can provide a complete simulation solution for purifying coal slime water with coal gangue. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The path simulation system for purifying coal slime water from coal gangue in goaf of the present invention is shown in side view Figure 1 ; Figure 2 The path simulation system for purifying coal slime water from coal gangue in goaf of the present invention is shown in side view Figure 2 ; Figure 3 It is a top view of the path simulation system for purifying coal slime water with coal gangue in goaf area of ​​the present invention; Figure 4a This is a schematic diagram of the deformed filling tube in path 1 of embodiment 3 of the present invention. Figure 4b is a schematic diagram of the deformed filling tube in path 3 of embodiment 3 of the present invention; Figure 5 This is a schematic diagram of the deformable filling tube structure of the present invention; Figure 6 It is a schematic diagram of the morphological structure of the height adjuster of the present invention; Figure 7 It is a bar graph comparing the thickness of coal slime after different path effects of the present invention.

[0016] In the figure, 1. water supply box, 2. water pump, 3. water pipe, 4. water tank, 5. fixed support column, 6. water stop clamp, 7. coal slime mixing box, 8. turbidity monitor, 9. stirrer, 10. coal slime water mixer, 11. retractable hydraulic support; 12. Filtration and purification system support platform, 13. Flow monitor, 14. Flow rate monitor, 15. Height adjuster, 15-1. Adjusting screw, 15-2. Adjusting nut, 16. Deformable filling tube, 16-1. Filling tube wrapped with plastic tube, 16-2. Inner strength reinforcing steel wire of filling tube, 17. Coal gangue; 18. Filtered water receiving box, 19. Ultrasonic mud-water interface instrument; 20. Information monitoring system. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0018] The present invention provides a path simulation system for purifying coal slime water with coal gangue in goaf areas, such as Figure 1 and 3 As shown, it includes: coal slurry water production system, coal gangue filtration and purification system, filtered water receiving and testing system and information monitoring system.

[0019] The coal slurry water production system includes a water supply tank 1, a water pump 2, a water pipe 3, a water tank 4, a fixed support column 5, a water stop clamp 6, a coal slurry mixing box 7, a turbidity monitor 8, an agitator 9, a coal slurry water mixer 10, a retractable hydraulic support 11, a flow monitor 13, and a flow velocity monitor 14.

[0020] The gangue filtration and purification system comprises a filtration and purification system support platform 12, a height adjuster 15, an adjustment screw 15-1, and an adjustment nut 15-2. Figure 6As shown, the deformable filling tube 16 is covered with a plastic tube 16-1 and a strength-enhancing steel wire 16-2 is provided inside the filling tube. Figure 5 As shown, coal gangue 17.

[0021] The filtered water receiving and detecting system comprises a filtered water receiving box 18 , a turbidity monitor 8 , and an ultrasonic mud-water interface meter 19 .

[0022] The information monitoring system 20 can transmit and display monitoring information such as the turbidity monitor 8, the flow monitor 13, the flow velocity monitor 14, and the ultrasonic mud-water interface meter 19 into the system.

[0023] In the coal slime water production system, the coal slime and water have independent boxes: a water tank 4 and a coal slime mixing box 7, so as to accurately control and measure the amount of water and coal slime mixed.

[0024] The coal slurry water production system includes a stirrer 9 and a turbidity monitor 8, which can stir the coal slurry water and monitor the turbidity and conductivity, so as to achieve the desired turbidity and other parameters of the coal slurry.

[0025] In the coal slurry water production system, a retractable hydraulic support 11 is provided, and the support height can be adjusted, and cooperated with a flow monitor 13 and a flow velocity monitor 14, so as to control the water inlet speed and water inlet flow.

[0026] The filtration and purification system of coal gangue can change the shape of the deformable filling tube 16 through the height adjuster 15 and the deformable filling tube 16 to achieve its ups and downs, thereby simulating the ups and downs of the bottom plate, such as Figure 6 shown.

[0027] The filtration and purification system of coal gangue can change the filling parameters such as the particle size of coal gangue and the filling density of coal gangue, and simulate the scenarios of different particle sizes and filling density of coal gangue in the mine.

[0028] The filtered water receiving detection system is provided with a turbidity monitor 8 and an ultrasonic mud-water interface meter 19, which can dynamically monitor the turbidity and thickness of the coal mud water after filtration, so as to intuitively analyze the filtering effect.

[0029] The present invention also provides a path simulation method for purifying coal slime water with coal gangue in goaf, and the implementation steps are as follows: Step 1: According to the test requirements, fill the deformable filling tube 16 with coal gangue 17 and place it on the supporting platform 12; Step 2: According to the shape design, the height of the deformable filling tube 16 in different areas is adjusted by adjusting the adjusting nut 15-2 to form a predetermined shape; Step 3: According to the final shape of the deformable filling tube 16, the retractable hydraulic support 11 is adjusted to make the height of the coal slurry water mixer 10 completely higher than the deformable filling tube 16, and a water tank 4, a coal slurry mixing box 7, an agitator 9, and a coal slurry water mixer 10 are arranged on the fixed support column 5, and the water tank 4 is required to be the highest, the coal slurry mixing box 7 is the second, and the coal slurry water mixer 10 is the lowest; Step 4: Connect the water supply box 1, the water pump 2, the water storage box 4, the coal sludge mixing box 7, the coal sludge water mixer 10, the deformable filling pipe 16 and the filtered water receiving box 18 through the water pipe 3; Step 5: Add a water stop clamp 6 to the water pipe, connect the flow monitor 13 and the flow velocity monitor 14, and set a turbidity monitor 8 and an ultrasonic mud-water interface meter 19 in the coal slurry water mixer 10 and the filtered water receiving box 18, and connect the signal to the information monitoring system 20; Step 6: Add water to the water supply tank 1, add coal slime to the coal slime mixing tank 7, and start the water pump 2 and the stirrer 9. At the same time, cut off the connection between the coal slime water mixer 10 and the deformable filling pipe 16 through the water stop clamp 6; Step 7: Monitor the parameters of the coal slurry water in the coal slurry water mixer 10 by setting a turbidity monitor 8, and when the parameters reach a predetermined parameter value, open the water stop clamp 6 to continuously discharge the coal slurry water to the deformable filling pipe 16; Step 8: When the water level in the filtered water receiving box 18 reaches the expected liquid level, the connection between the deformable filling tube 16 and the filtered water receiving box 18 is cut off through the water stop clamp 6, and the water pump is immediately turned off; Step 9: Through the information monitoring system 20, read the monitoring information transmission of the turbidity monitor, turbidity monitor 8, flow monitor 13, flow velocity monitor 14, ultrasonic mud-water interface meter 19, etc., and carry out data analysis.

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Example 1 The present invention discloses a path simulation system for purifying coal slime water from coal gangue in goaf areas. The system comprises a coal slime water production system, a coal gangue filtering and purification system, a filtered water receiving and detecting system and an information monitoring system.

[0032] The coal slurry water production system includes a water supply tank 1, a water pump 2, a water pipe 3, a water tank 4, a fixed support column 5, a water stop clamp 6, a coal slurry mixing box 7, a turbidity monitor 8, an agitator 9, a coal slurry water mixer 10, a retractable hydraulic support 11, a flow monitor 13, and a flow velocity monitor 14.

[0033] The gangue filtration and purification system includes a filtration and purification system support platform 12, a height adjuster 15 (adjusting screw 15-1, adjusting nut 15-2), a deformable filling tube 16 (the filling tube is wrapped with a plastic tube 16-1, and the filling tube has a strength-reinforced steel wire 16-2 inside), and gangue 17.

[0034] The filtered water receiving and detecting system comprises a filtered water receiving box 18 , a turbidity monitor 8 , and an ultrasonic mud-water interface meter 19 .

[0035] The information monitoring system 20 can transmit and display monitoring information such as the turbidity monitor 8, the flow monitor 13, the flow velocity monitor 14, and the ultrasonic mud-water interface meter 19 into the system.

[0036] In the coal slime water production system, the coal slime and water have independent boxes: a water tank 4 and a coal slime mixing box 7, so as to accurately control and measure the amount of water and coal slime mixed.

[0037] The coal slurry water production system includes a stirrer 9 and a turbidity monitor 8, which can stir the coal slurry water and monitor the turbidity and conductivity, so as to achieve the desired turbidity and other parameters of the coal slurry.

[0038] In the coal slurry water production system, a retractable hydraulic support 11 is provided, and the support height can be adjusted, and cooperated with a flow monitor 13 and a flow velocity monitor 14, so as to control the water inlet speed and water inlet flow.

[0039] The coal gangue filtering and purification system can adjust the deformable filling tube 16 through the height regulator 15, change the shape of the deformable filling tube 16, realize its ups and downs, and thus simulate the ups and downs of the bottom plate.

[0040] The filtration and purification system of coal gangue can change the filling parameters such as the particle size of coal gangue and the filling density of coal gangue, and simulate the scenarios of different particle sizes and filling density of coal gangue in the mine.

[0041] The filtered water receiving detection system is provided with a turbidity monitor 8 and an ultrasonic mud-water interface meter 19, which can dynamically monitor the turbidity of the filtered coal mud water and the thickness of the coal mud, so as to intuitively analyze the filtering effect.

[0042] Example 2 This embodiment provides a path simulation method for purifying coal slime water with coal gangue in goaf, comprising the following steps: Step 1: According to the test requirements, coal gangue 17 is filled into the deformable filling tube 16 and placed on the supporting platform 12 .

[0043] Step 2: According to the shape design, the height of the deformable filling tube 16 in different areas is adjusted by adjusting the adjusting nut 15-2 to form a predetermined shape.

[0044] Step 3: According to the final shape of the deformable filling tube 16, adjust the retractable hydraulic support 11 so that the height of the coal slurry water mixer 10 is completely higher than the deformable filling tube 16, and set the water tank 4, coal slurry mixing box 7, agitator 9, and coal slurry water mixer 10 on the fixed support column 5, and require that the water tank 4 is the highest, the coal slurry mixing box 7 is the second, and the coal slurry water mixer 10 is the lowest.

[0045] Step 4: Connect the water supply box 1, the water pump 2, the water storage box 4, the coal sludge mixing box 7, the coal sludge water mixer 10, the deformable filling tube 16 and the filtered water receiving box 18 through the water pipe 3.

[0046] Step 5: Add a water stop clamp 6 to the water pipe, connect the flow monitor 13 and the flow velocity monitor 14, and set a turbidity monitor 8 and an ultrasonic mud-water interface meter 19 in the coal slurry water mixer 10 and the filtered water receiving box 18, and connect the signal to the information monitoring system 20.

[0047] Step 6: Add water to the water supply box 1, add coal slime to the coal slime blending box 7, and start the water pump 2 and the agitator 9. At the same time, cut off the connection between the coal slime water mixer 10 and the deformable filling pipe 16 through the water stop clamp 6.

[0048] Step 7: Monitor the parameters of the coal slurry water in the coal slurry water mixer 10 by setting a turbidity monitor 8. When the parameters reach a predetermined parameter value, open the water stop clamp 6 to continuously discharge the coal slurry water into the deformable filling pipe 16.

[0049] Step 8: When the water level in the filtered water receiving box 18 reaches the expected liquid level, the connection between the deformable filling tube 16 and the filtered water receiving box 18 is cut off through the water stop clamp 6, and the water pump is immediately turned off.

[0050] Step 9: Through the information monitoring system 20, read the monitoring information transmission of the turbidity monitor 8, the flow monitor 13, the flow velocity monitor 14, the ultrasonic mud-water interface meter 19, etc., and carry out data analysis.

[0051] Example 3 This embodiment provides a path simulation method for purifying coal slime water with coal gangue in goaf, which includes: As in Example 2, the turbidity of the coal slurry water is set to 15000 NTU, the flow rate is 10 mL / min, the flow velocity is 1.0 m / s, the coal gangue particle size is set to 10-20 mm gravel, and the coal gangue is tightly packed. The purification effect under different paths is tested. The deformable filling tube 16 is adjusted to be divided into 3 forms (paths): Path 1: The bottom plate first descends, then rises, and then descends again, as shown in Figure 4-a; Path 2: The bottom plate rises first, then falls, and then rises again. Figure 2 As shown; Path 3: tilt down at a single angle, as shown in Figure 4-b; According to Example 2, when the water level in the filtered water receiving box 18 reaches 20 cm, the connection between the deformable filling tube 16 and the filtered water receiving box 18 is cut off through the water stop clamp 6, and the water pump is immediately turned off.

[0052] After settling for 1 h, the thickness of the coal slime was tested by an ultrasonic mud-water interface instrument 19, and the effects of different paths on the purification of coal slime water were analyzed, such as Figure 7 shown.

[0053] Example 4 The path simulation system for purifying coal slime water from coal gangue in goaf area includes a coal slime water production system, a coal gangue filtering and purification system, a filtered water receiving and detecting system and an information monitoring system 20. The coal slime water production system includes a water source supply box 1, a water storage box 4, a coal slime mixing box 7 and a coal slime water mixer 10 which are sequentially connected through a water pipe 3. A turbidity monitor 8 is arranged at the bottom of the coal slime water mixer 10. The coal gangue filtering and purification system includes a deformable filling pipe 16. The coal slime water mixer 10 is connected through the water pipe 3 and conveys the coal slime water to the deformable filling pipe 16. The deformable filling pipe 16 It is arranged on a filtering and purification system supporting platform 12, and the bottom is supported by a number of height adjusters 15. A flow monitor 13 and a flow velocity monitor 14 are arranged at the inlet of a deformable filling tube 16; the end of the deformable filling tube 16 is connected to a filtered water receiving detection system, and the filtered water receiving detection system includes a filtered water receiving box 18, and a turbidity monitor 8 and an ultrasonic mud-water interface meter 19 are arranged inside the filtered water receiving box 18; the turbidity monitor 8, the flow monitor 13, the flow velocity monitor 14, and the ultrasonic mud-water interface meter 19 are all connected to the information monitoring system 20.

[0054] Example 5 On the basis of Example 4, a water pump 2 is provided at the bottom of the water supply box 1, and is connected to the water tank 4 through the water pump 2 and the water pipe 3.

[0055] A water stop clamp 6 is provided on the water pipe at the water outlet of the water tank 4 .

[0056] The bottom of the water tank 4 and the coal slime mixing box 7 are both provided with fixed support columns 5 .

[0057] The coal slurry water mixer 10 is provided with an agitator 9 inside and a retractable hydraulic support 11 at the bottom.

[0058] Example 6 Based on the fifth embodiment, the height adjuster 15 includes an adjusting screw 15 - 1 and an adjusting nut 15 - 2 .

[0059] The deformable filling tube 16 is filled with coal gangue 17. The deformable filling tube 16 includes a filling tube wrapped with a plastic tube 16-1, and a filling tube internal strength reinforcing steel wire 16-2 inside the filling tube wrapped with the plastic tube 16-1.

Claims

1. A path simulation system for purifying coal slime water from coal gangue in goaf, characterized in that: The invention comprises a coal slurry water production system, a coal gangue filtering and purification system, a filtered water receiving and detecting system and an information monitoring system (20), wherein the coal slurry water production system comprises a water source supply box (1), a water storage box (4), a coal slurry mixing box (7) and a coal slurry water mixer (10) which are sequentially connected via a water pipe (3), and a turbidity monitor (8) is arranged at the bottom of the coal slurry water mixer (10); the coal gangue filtering and purification system comprises a deformable filling pipe (16), the coal slurry water mixer (10) is connected via a water pipe (3) and conveys coal slurry water to the deformable filling pipe (16), and the deformable filling pipe (16) is arranged on a support of the filtering and purification system. The platform (12) is supported at the bottom by a plurality of height adjusters (15); a flow monitor (13) and a flow rate monitor (14) are arranged at the inlet of the deformable filling tube (16); the end of the deformable filling tube (16) is connected to a filtered water receiving detection system, the filtered water receiving detection system comprises a filtered water receiving box (18), and a turbidity monitor (8) and an ultrasonic mud-water interface meter (19) are arranged inside the filtered water receiving box (18); the turbidity monitor (8), the flow monitor (13), the flow rate monitor (14), and the ultrasonic mud-water interface meter (19) are all connected to an information monitoring system (20).

2. The path simulation system for purifying coal slime water from coal gangue in goaf according to claim 1 is characterized in that: A water pump (2) is provided at the bottom of the water supply box (1), and is connected to a water storage tank (4) via the water pump (2) and a water pipe (3).

3. The path simulation system for purifying coal slime water from coal gangue in goaf according to claim 2 is characterized in that: A water stop clamp (6) is provided on the water pipe at the water outlet of the water storage tank (4).

4. The path simulation system for purifying coal slime water from coal gangue in goaf according to claim 3 is characterized in that: Fixed support columns (5) are provided at the bottom of the water storage tank (4) and the coal slime mixing box (7).

5. The path simulation system for purifying coal slime water from coal gangue in goaf according to claim 4 is characterized in that: The coal slurry water mixer (10) is provided with an agitator (9) inside and a retractable hydraulic support (11) at the bottom.

6. The path simulation system for purifying coal slime water from coal gangue in goaf according to claim 5, characterized in that: The height adjuster (15) comprises an adjusting screw (15-1) and an adjusting nut (15-2).

7. The path simulation system for purifying coal slime water from coal gangue in goaf according to claim 6 is characterized in that: The deformable filling tube (16) is filled with coal gangue (17) and comprises a filling tube wrapped with a plastic tube (16-1) outside the filling tube, and a strength-reinforcing steel wire (16-2) is filled inside the filling tube inside the plastic tube (16-1).

8. A path simulation method for purifying coal slime water from coal gangue in goaf, characterized in that: The path simulation system for purifying coal slime water with coal gangue according to any one of claims 1 to 7 is implemented in the following specific steps: Step 1: According to the test requirements, coal gangue (17) is filled into the deformable filling tube (16) and placed on the supporting platform (12); Step 2: According to the shape design, the height of the deformable filling tube (16) in different areas is adjusted by adjusting the adjusting nut (15-2) to form a predetermined shape; Step 3: According to the final shape of the deformable filling tube (16), the retractable hydraulic support (11) is adjusted so that the height of the coal slurry water mixer (10) is completely higher than the deformable filling tube (16), and a water tank (4), a coal slurry mixing box (7), an agitator (9), and a coal slurry water mixer (10) are arranged on the fixed support column (5), and the height is arranged so that the water tank (4) is the highest, the coal slurry mixing box (7) is the second, and the coal slurry water mixer (10) is the lowest; Step 4: Connecting the water supply box (1), the water pump (2), the water storage box (4), the coal sludge mixing box (7), the coal sludge water mixer (10), the deformable filling pipe (16) and the filtered water receiving box (18) through the water pipe (3); Step 5: Add a water stop clamp (6) to the water pipe, connect the flow monitor (13) and the flow rate monitor (14), and install a turbidity monitor (8) and an ultrasonic mud-water interface meter (19) in the coal slurry water mixer (10) and the filtered water receiving box (18), and connect the signal to the information monitoring system (20); Step 6: Add water to the water supply box (1), add coal slime to the coal slime mixing box (7), and start the water pump (2) and the stirrer (9). At the same time, cut off the connection between the coal slime water mixer (10) and the deformable filling pipe (16) through the water stop clamp (6); Step 7: Monitor the parameters of the coal slurry water in the coal slurry water mixer (10) by setting a turbidity monitor (8), and when the parameters reach a predetermined parameter value, open the water stop clamp (6) to continuously discharge the coal slurry water into the deformable filling pipe (16); Step 8: When the water level in the filtered water receiving box (18) reaches the expected liquid level, the connection between the deformable filling tube (16) and the filtered water receiving box (18) is cut off by the water stop clamp (6), and the water pump is immediately turned off; Step 9: Through the information monitoring system (20), the turbidity monitor (8), the flow monitor (13), the flow velocity monitor (14), and the ultrasonic mud-water interface meter (19) are read to monitor information transmission and perform data analysis.

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