A mud water shield automatic discharging quantity metering device and metering method thereof

Abstract

The present application relates to the technical field of shield construction, and particularly relates to a slurry shield slag discharge amount automatic metering device, which comprises a sampling mechanism, a slurry separation mechanism and a cleaning mechanism, the sampling mechanism comprises a sampling cylinder, a gate assembly arranged at the bottom of the sampling cylinder and a gate drive for driving the gate assembly to open and close, the slurry separation mechanism comprises a filter screen cylinder, an inner cylinder, an outer cylinder arranged in sequence from inside to outside and a slurry separation reduction motor for driving the inner cylinder to rotate, and the cleaning mechanism comprises a high-pressure spray head, a hose and an electric telescopic rod. The present application can accurately measure the volume of solid in the inlet and outlet slurry, and calculate the accurate slag discharge amount of the slurry shield tunneling according to the real-time flow of the circulating slurry.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine (TBM) construction technology, and in particular to an automatic metering device and method for measuring the amount of slag discharged from a slurry TBM. Background Technology

[0002] During tunnel boring machine (TBM) construction, if a collapse occurs at the tunnel face, it will cause excessive ground settlement or ground subsidence, affecting the safety of pedestrians and vehicles and damaging nearby buildings and structures. The amount of muck discharged is a crucial indicator of whether a collapse has occurred at the tunnel face, but currently there is no equipment capable of accurately measuring the amount of muck discharged during slurry TBM tunneling. Therefore, to meet the need for accurate measurement of muck discharged during slurry TBM tunneling, this invention provides an automatic muck discharge measurement device for slurry TBMs. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a slurry shield tunneling muck volume metering device and its metering method that can automatically and accurately measure the amount of slag discharged during the slurry shield tunneling process and guide slurry shield tunneling construction.

[0004] Design an automatic metering device for the amount of slag discharged from a slurry shield tunneling machine, including a mounting frame. A sampling mechanism and a slurry separation mechanism are provided on the mounting frame. The sampling mechanism includes a slurry sampler mounted on the mounting frame via a sampling bracket and a sampling driver that drives the slurry sampler to rotate horizontally.

[0005] It also includes mud sampling pipes installed on the mud shield tunnel's slurry inlet pipe and slurry outlet pipe, respectively, and a sampling solenoid valve is installed on the mud sampling pipe;

[0006] The mud sampler includes a sampling cylinder, a gate assembly located at the bottom of the sampling cylinder, and a gate actuator for driving the gate assembly to open and close.

[0007] The mud-water separation mechanism includes a mud-water separator mounted on a mounting frame via a mud-water separation bracket. The mud-water separation bracket consists of a vertical rod mounted on the mounting frame and a horizontal rod at the top of the vertical rod. A horizontal drive for driving the mud-water separator to rotate horizontally is provided on the mounting frame, and a vertical drive for driving the mud-water separator to rotate vertically is provided at the top of the horizontal rod.

[0008] It also includes a volume measurement sensor, which is fixed to the mounting bracket by a main support.

[0009] Preferably, the mud-water separator includes an outer cylinder, an inner cylinder, and a filter screen cylinder disposed inside the inner cylinder. A drain hole is provided on the side wall of the inner cylinder, and a drain pipe is provided on one side of the bottom of the outer cylinder. A rotating shaft is provided between the bottom center of the inner cylinder and the outer cylinder, and a mud-water separation driver is provided at the bottom center of the outer cylinder. The output shaft of the mud-water separation driver passes through the outer cylinder and is coaxially arranged with the rotating shaft.

[0010] Preferably, multiple buckles are circumferentially distributed at the top outer edge of the filter cylinder, and multiple slots that cooperate with the buckles are provided on the side wall of the inner cylinder, so that the filter cylinder is secured in the slots by the buckles.

[0011] Preferably, a support plate is provided on the mounting bracket near the mud-water separator, and a cleaning mechanism is provided on the support plate. The cleaning mechanism includes an electric telescopic rod provided on the support plate, a high-pressure water nozzle fixed to the telescopic end of the electric telescopic rod by a fixing ring, and a hose connected to the high-pressure water nozzle. The hose is connected to a high-pressure water source.

[0012] Preferably, the mounting bracket is also equipped with a controller, the output of which is electrically connected to the sampling driver, the horizontal separation driver, the vertical separation driver, the gate driver, the electric telescopic rod, and the sampling solenoid valve, and the input of which is electrically connected to the volume measurement sensor.

[0013] An automatic measurement method for the amount of slag discharged from a slurry shield tunneling machine includes the following steps:

[0014] S1: Install the metering device on the circulating mud inlet pipe and outlet pipe respectively, and measure the solids in the mud inlet and outlet respectively;

[0015] S2: Start the sampling driver to make the sampling bracket drive the sampling cylinder to rotate to directly below the sampling tube outlet, open the sampling solenoid valve, and fill the sampling cylinder with mud to obtain a fixed volume of mud sample.

[0016] S3: Restart the sampling driver to rotate the sampling bracket and the sampling cylinder to the top of the mud-water separator. Then start the gate driver to open the gate assembly and inject the mud into the filter screen of the mud-water separator. After the injection is complete, close the gate assembly and rotate the sampling cylinder to the initial position.

[0017] S4: Start the mud-water separation driver to drive the inner cylinder to rotate. Under the action of centrifugal force, the water in the mud is thrown into the outer cylinder and flows out through the drain pipe, thereby achieving the purpose of mud-water separation.

[0018] S5: After the sample mud is separated from the water, the solids remaining in the inner cylinder are measured by starting the horizontal drive, which rotates the mud separator to the position below the volume measurement sensor and measures the data of the surface of the solids in the inner cylinder. Then the volume of the solids is calculated, thus completing one measurement.

[0019] The calculation method is as follows: Since the solid content of the circulating mud in the slurry of the slurry is relatively stable in a short period of time, the average solid content in the slurry during the excavation of one ring of the slurry can be taken as v0.

[0020] The measurement interval of the measuring device at the slurry discharge pipe is t, and the real-time slurry discharge flow rate is Q. mt The mud sampling volume is v, and the measured solids content in the discharged mud is v. mt If a slurry shield tunneling machine performs n measurements on the solid content of the discharged slurry during one ring excavation, then the formula for calculating the slag discharge volume V for that cycle is: .

[0021] Preferably, after the measurement is completed, in order to ensure the accuracy of the next measurement, the mud-water separator needs to be cleaned, specifically including the following steps:

[0022] S1: After the measurement is completed, start the horizontal drive to rotate the mud-water separator around the vertical axis to the outside of the mounting frame, and then start the vertical drive to rotate the mud-water separator so that the opening faces downwards, and pour out the fixed objects in its inner cylinder.

[0023] S2: Then start the horizontal drive again to rotate the mud-water separator above the high-pressure water nozzle. Start the electric telescopic rod to drive the high-pressure water nozzle into the inner cylinder of the mud-water separator. At this time, start the mud-water separation reduction motor to drive the inner cylinder to rotate, and at the same time control the electric telescopic rod to repeatedly extend and retract, continuously rinsing until the solid matter attached to the filter screen is completely removed.

[0024] S3: After cleaning, restart the horizontal and vertical drives to restore the mud-water separator and high-pressure water nozzle to their initial positions, and then proceed with the next measurement.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention solves the problem of inaccurate muck discharge by measuring the amount of slag discharged during slurry shield tunneling in real time. If the amount of slag discharged is excessive, it can be detected and dealt with in time to avoid endangering the safety of surface buildings, pedestrians and vehicles.

[0027] By setting up automatic mud sampling, mud-water separation, and metering of the volume of solids after separation, and providing data feedback, combined with mud-water circulation parameters, the real-time muck discharge during the tunneling process is automatically calculated based on the real-time flow rate of the circulating mud. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of a mud-water separator;

[0030] Figure 3 This is a schematic diagram of the explosive structure of mud-water separation;

[0031] Figure 4Schematic diagram of the cleaning mechanism;

[0032] Figure 5 This is a schematic diagram of the mud sampler.

[0033] Figure 6 This is a structural schematic diagram of the gate assembly;

[0034] Figure 7 yes Figure 6 A schematic diagram of the structure in direction A;

[0035] Figure 8 This is a block diagram of the electrical control principle of the present invention;

[0036] The following are the labels in the diagram: 1. Slurry inlet / outlet pipe of the slurry shield tunnel; 2. Sampling solenoid valve; 3. Sampling pipe; 4. Slurry sampler; 5. Sampling bracket; 6. Sampling driver; 7. Vertical rod; 8. Horizontal driver; 9. Slurry separator; 10. Horizontal rod; 11. Volume measurement sensor; 12. Vertical driver; 13. Controller; 14. Main support; 15. Cleaning mechanism; 16. Outer cylinder; 17. Inner cylinder; 18. Drain pipe; 19. Buckle; 20. Filter screen cylinder; 21. Rotary shaft; 22. Slurry separator geared motor; 23. Slot; 24. High-pressure water nozzle; 25. Fixing ring; 26. Hose; 27. Electric telescopic rod; 28. Threaded rod; 29. ​​Support plate; 30. Sampling cylinder; 31. Gate driver; 32. Gate plate; 33. Mounting plate; 34. Guide block; 35. Guide rod; 36. Mounting hole; 37. Moving port; 38. Slider. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example 1

[0038] An automatic metering device for the amount of slag discharged from a slurry shield tunneling machine, such as Figures 1 to 8 As shown, the system includes a mounting frame, on which a sampling mechanism and a mud-water separation mechanism are mounted. The sampling mechanism includes a mud sampler 4 mounted on the mounting frame via a sampling bracket 5 and a sampling driver 6 that drives the mud sampler 4 to rotate horizontally. The sampling bracket 5 is a U-shaped support rod, and the sampling driver 6 is a geared motor whose output shaft is coaxially arranged with the bottom of the U-shaped support rod, thereby driving the U-shaped support rod to rotate the mud sampler 4. It also includes mud sampling pipes 3 respectively installed on the mud-water shield tunnel's slurry inlet pipe and slurry outlet pipe, and a sampling solenoid valve 2 is installed on the mud sampling pipe 3.

[0039] The mud sampler includes a sampling cylinder 30, a gate assembly located at the bottom of the sampling cylinder 30, and a gate actuator 31 for opening and closing the gate assembly. The gate assembly includes a mounting plate 33 and a gate plate 32 located at the bottom of the sampling cylinder 30. The sampling cylinder 30 is fixedly connected to the mounting plate 33, and a mounting hole 36 corresponding to the sampling cylinder 30 is provided at the bottom of the mounting plate 33. A cavity is formed inside the mounting plate 33, and a transverse bidirectional threaded rod 28 is rotatably provided on one side of the cavity. Sliding blocks 38 are threaded onto two oppositely threaded sections of the bidirectional threaded rod 28. A guide rod 3 parallel to the bidirectional threaded rod 28 is provided on the rear side of the bidirectional threaded rod 28. 5. Two guide blocks 34 corresponding to the slider 38 are mounted on the guide rod 35. Gates 32 for opening or closing the sampling cylinder 30 outlet are respectively provided at the bottom of the slider 38 and guide blocks 34 on the left and right sides. Moving openings 37 for the gates 32 to pass through are respectively provided at both ends of the mounting plate 33. The gate actuator 31 includes a geared motor, the output shaft of which extends into the cavity and is connected to a drive bevel gear. A driven bevel gear meshing with the drive bevel gear is fixedly sleeved at one end of the bidirectional threaded rod 28. By controlling the forward and reverse rotation of the geared motor, the drive bevel gear meshes with the driven bevel gear, driving the bidirectional threaded rod 28 to rotate, thereby causing the two gates 32 to move relative to or towards each other, thus opening or closing the bottom outlet of the sampling cylinder 30.

[0040] The mud-water separation mechanism includes a mud-water separator 9 mounted on a mounting frame via a mud-water separation bracket. The mud-water separation bracket consists of a vertical rod 7 mounted on the mounting frame and a horizontal rod 10 at the top of the vertical rod 7. A horizontal driver 8 is mounted on the mounting frame to drive the mud-water separator 9 to rotate horizontally, and a vertical driver 12 is mounted at the top of the horizontal rod 10 to drive the mud-water separator 9 to rotate vertically. Both the horizontal driver 8 and the vertical driver 12 are geared motors. The horizontal driver 8 is coaxially mounted with the vertical rod 7 and drives the mud-water separator 9 to rotate horizontally, while the vertical driver 12 is coaxially mounted with the horizontal rod 10 and drives the mud-water separator 9 to rotate vertically.

[0041] The mud-water separator 9 includes an outer cylinder 16, an inner cylinder 17, and a filter screen cylinder 20 disposed inside the inner cylinder 17. A drain hole is provided on the side wall of the inner cylinder 17, and a drain pipe 18 is provided on one side of the bottom of the outer cylinder 16. A rotating shaft 21 is located between the bottom center of the inner cylinder 17 and the outer cylinder 16. A mud-water separation reduction motor 22 is located at the bottom center of the outer cylinder 16, and the output shaft of the mud-water separation reduction motor 22 passes through the outer cylinder 16 and is coaxially arranged with the rotating shaft 21. The mud-water separation reduction motor 22 drives the inner cylinder 17 and the filter screen cylinder 20 to rotate, causing the water in the inner cylinder 17 to be thrown out, achieving the purpose of mud-water separation.

[0042] To facilitate filter replacement, multiple clips 19 are circumferentially distributed along the outer edge of the top of the filter cylinder 20. Multiple slots 23, which mate with the clips 19, are provided on the side wall of the inner cylinder 17. The filter cylinder 20 is secured within the slots 23 by the clips 19. By pulling the clips 19 inward, the clips 19 are disengaged from the slots 23, allowing the filter cylinder 20 to be removed.

[0043] It also includes a volume measurement sensor 11, which is fixed to the mounting bracket by the main bracket 14.

[0044] A support plate 29 is provided on the mounting bracket near the mud-water separator 9. A cleaning mechanism 15 is provided on the support plate 29. The cleaning mechanism 15 includes an electric telescopic rod 27 provided on the support plate 29, a high-pressure water nozzle 24 fixed to the telescopic end of the electric telescopic rod 27 by a fixing ring 25, and a hose 26 connected to the high-pressure water nozzle 24. The hose 26 is connected to a high-pressure water source.

[0045] The mounting bracket also has a controller 13. The output terminals of the controller 13 are electrically connected to the sampling driver 6, the horizontal driver 8, the vertical driver 12, the gate driver 31, the electric telescopic rod 27, and the sampling solenoid valve 2. The input terminal of the controller 13 is electrically connected to the volume measurement sensor. Example 2

[0046] An automatic measurement method for the amount of slag discharged from a slurry shield tunneling machine includes the following steps:

[0047] S1: Install the metering device on the circulating mud inlet pipe and outlet pipe respectively, and measure the solids in the mud inlet and outlet respectively;

[0048] S2: Start the sampling driver 6 to make the sampling bracket 5 drive the sampling cylinder 30 to rotate to directly below the outlet of the sampling tube 3, open the sampling solenoid valve 2, and fill the sampling cylinder 30 with mud to obtain a fixed volume of mud sample.

[0049] S3: Restart the sampling driver 6 to make the sampling bracket 5 drive the sampling cylinder 30 to rotate directly above the mud-water separator 9. Then start the gate driver 31 to rotate forward, so that the two gates 32 open to both sides and inject the mud into the filter screen cylinder 20 of the mud-water separator 9. After the injection is completed, make the gate driver 31 rotate in the opposite direction to move the two gates 32 inward, so that the sampling cylinder 30 is blocked, and rotate the sampling cylinder 30 back to the initial position.

[0050] S4: Start the mud-water separation reduction motor 22 to drive the inner cylinder 17 to rotate. Under the action of centrifugal force, the water in the mud is thrown into the outer cylinder 16 and flows out through the drain pipe 18, thereby achieving the purpose of mud-water separation.

[0051] S5: After the sample mud is separated from the water, the solids remaining in the inner cylinder 17 are measured by activating the horizontal actuator 8, causing the mud-water separator 9 to rotate below the volume measurement sensor 11. The surface data of the solids in the inner cylinder 17 is then measured, and the volume of the solids is calculated, thus completing one measurement. The method for calculating the volume of the solids is as follows:

[0052] Since the solid content of the circulating mud in a slurry shield tunnel is relatively stable in a short period of time, the average solid content in the slurry during the excavation of one ring of the slurry shield tunnel can be taken as v0.

[0053] The measurement interval of the measuring device at the slurry discharge pipe is t, and the real-time slurry discharge flow rate is Q. mt The mud sampling volume is v, and the measured solids content in the discharged mud is v. mt If a slurry shield tunneling machine performs n measurements on the solid content of the discharged slurry during one ring excavation, then the formula for calculating the slag discharge volume V for that cycle is: .

[0054] After the measurement is completed, in order to ensure the accuracy of the next measurement, the mud-water separator 9 needs to be cleaned, which includes the following steps:

[0055] S1: After the measurement is completed, start the horizontal drive 8 to rotate the mud-water separator 9 around the vertical axis to the outside of the mounting frame, and then start the vertical drive 12 to rotate the mud-water separator 9 so that the opening faces downward and the fixed object in its inner cylinder 17 is poured out.

[0056] S2: Then start the horizontal drive 8 again to rotate the mud-water separator 9 above the high-pressure water nozzle 24, start the electric telescopic rod 27 to drive the high-pressure water nozzle 24 into the inner cylinder 17 of the mud-water separator 99, start the mud-water separation reduction motor 22 to drive the inner cylinder 17 to rotate, and at the same time control the electric telescopic rod 27 to repeatedly extend and retract, continuously rinsing until the solid matter attached to the filter screen cylinder 20 is completely removed.

[0057] S3: After cleaning, restart the horizontal drive 8 and the vertical drive 12 to restore the mud-water separator 9 and the high-pressure water nozzle 24 to their initial positions, and then proceed with the next measurement.

[0058] In the above embodiments, the horizontal driver 8, the vertical driver 12, the mud-water separation geared motor 22, and the sampling driver 6 can all use STM4260A stepper motors, the gate driver 31 can use STM4234A stepper motors, and the controller can use a Siemens SIMATIC S7-200 series PLC with model number 6ES7 288-1ST30-0AA1 as the automatic control device.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic metering device for the amount of slag discharged from a slurry shield tunneling machine, comprising a mounting frame, characterized in that, The mounting frame is equipped with a sampling mechanism and a mud-water separation mechanism. The sampling mechanism includes a mud sampler (4) mounted on the mounting frame via a sampling bracket (5) and a sampling driver (6) that drives the mud sampler (4) to rotate horizontally. It also includes mud sampling pipes (3) installed on the mud shield tunnel's slurry inlet pipe and slurry outlet pipe respectively, and a sampling solenoid valve (2) is provided on the mud sampling pipe (3). The mud sampler (4) includes a sampling tube (30), a gate assembly located at the bottom of the sampling tube (30), and a gate actuator (31) for driving the gate assembly to open and close. The mud-water separation mechanism includes a mud-water separator (9) mounted on a mounting frame via a mud-water separation bracket. The mud-water separation bracket consists of a vertical rod (7) mounted on the mounting frame and a horizontal rod (10) at the top of the vertical rod (7). A horizontal driver (8) is provided on the mounting frame to drive the mud-water separator (9) to rotate horizontally, and a vertical driver (12) is provided at the top of the horizontal rod (10) to drive the mud-water separator (9) to rotate vertically. It also includes a volume measurement sensor (11), which is fixed to the mounting bracket by a main support (14).

2. The automatic metering device for slurry shield tunneling muck discharge as described in claim 1, characterized in that: The mud-water separator (9) includes an outer cylinder (16), an inner cylinder (17), and a filter screen cylinder (20) disposed in the inner cylinder (17). A drain hole is provided on the side wall of the inner cylinder (17), and a drain pipe (18) is provided on one side of the bottom of the outer cylinder (16). A rotating shaft (21) is provided between the bottom center of the inner cylinder (17) and the outer cylinder (16). A mud-water separation reduction motor (22) is provided at the bottom center of the outer cylinder (16). The output shaft of the mud-water separation reduction motor (22) passes through the outer cylinder (16) and is coaxially arranged with the rotating shaft (21).

3. The automatic metering device for slurry shield tunneling muck discharge as described in claim 2, characterized in that: Multiple buckles (19) are distributed circumferentially at the top outer edge of the filter cylinder (20), and multiple slots (23) that cooperate with the buckles (19) are provided on the side wall of the inner cylinder (17). The filter cylinder (20) is secured in the slots (23) by the buckles (19).

4. The automatic metering device for slurry shield tunneling muck discharge as described in claim 1 or 2, characterized in that: A support plate (29) is provided on the mounting bracket near the mud-water separator (9). A cleaning mechanism (15) is provided on the support plate (29). The cleaning mechanism (15) includes an electric telescopic rod (27) provided on the support plate (29), a high-pressure water nozzle (24) fixed to the telescopic end of the electric telescopic rod (27) by a fixing ring (25), and a hose (26) connected to the high-pressure water nozzle (24). The hose (26) is connected to a high-pressure water source.

5. The automatic metering device for slurry shield tunneling muck discharge as described in claim 4, characterized in that: A controller (13) is also provided on the mounting bracket. The output end of the controller (13) is electrically connected to the sampling driver (6), the horizontal driver (8), the vertical driver (12), the gate driver (31), the electric telescopic rod (27), and the sampling solenoid valve (2). The input end of the controller (13) is electrically connected to the volume measurement sensor (11).

6. A metering method using the automatic metering device for slurry shield tunneling muck discharge as described in claim 5, characterized in that: Includes the following steps: S1: Install the metering device on the circulating mud inlet pipe and outlet pipe respectively, and measure the solids in the mud inlet and outlet respectively; S2: Start the sampling driver (6) to make the sampling bracket (5) drive the sampling cylinder (30) to rotate to the position directly below the outlet of the sampling tube (3), open the sampling solenoid valve (2) to fill the sampling cylinder (30) with mud, thereby obtaining a mud sample of a fixed volume; S3: Restart the sampling driver (6) to make the sampling bracket (5) drive the sampling cylinder (30) to rotate to the top of the mud-water separator (9), then start the gate driver (31) to open the gate assembly and inject the mud into the filter screen cylinder (20) of the mud-water separator (9). After the injection is completed, close the gate assembly and rotate the sampling cylinder (30) to the initial position. S4: Start the mud-water separation reduction motor (22) to drive the inner cylinder (17) to rotate. Under the action of centrifugal force, the water in the mud is thrown into the outer cylinder (16) and flows out through the drain pipe (18), thereby achieving the purpose of mud-water separation. S5: After the sample mud is separated from the water, the solids remaining in the inner cylinder (17) are activated by starting the horizontal drive (8), which causes the mud separator (9) to rotate to the bottom of the volume measurement sensor (11) and measure the data of the surface of the solids in the inner cylinder (17). Then the volume of the solids is calculated, thus completing one measurement.

7. The measurement method as described in claim 6, characterized in that: The method for calculating the volume of the solid in step S5 above is as follows: Since the solid content of the circulating mud in a slurry shield tunnel is relatively stable in a short period of time, the average solid content in the slurry during the excavation of one ring of the slurry shield tunnel can be taken as v0. The measurement interval of the measuring device at the slurry discharge pipe is t, and the real-time slurry discharge flow rate is Q. mt The mud sampling volume is v, and the measured solids content in the discharged mud is v. mt If a slurry shield tunneling machine performs n measurements on the solid content of the discharged slurry during one ring excavation, then the formula for calculating the slag discharge volume V for that cycle is: .

8. The measurement method as described in claim 6, characterized in that: After the measurement is completed, in order to ensure the accuracy of the next measurement, the mud-water separator (9) needs to be cleaned, which includes the following steps: S1: After the measurement is completed, start the horizontal drive (8) to rotate the mud-water separator (9) around the vertical axis to the outside of the mounting frame, and then start the vertical drive (12) to rotate the mud-water separator (9) so that the opening faces downward and the fixed objects in its inner cylinder (17) are poured out. S2: Then start the horizontal drive (8) again to rotate the mud-water separator (9) above the high-pressure water nozzle (24), start the electric telescopic rod (27) to drive the high-pressure water nozzle (24) into the inner cylinder (17) of the mud-water separator (9), start the mud-water separation reduction motor (22) to drive the inner cylinder (17) to rotate, and at the same time control the electric telescopic rod (27) to repeatedly extend and retract, continuously flushing until the solid matter attached to the filter screen cylinder (20) is completely removed; S3: After cleaning, restart the horizontal drive (8) and vertical drive (12) to restore the mud-water separator (9) and high-pressure water nozzle (24) to their initial positions, and then proceed with the next measurement.

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