Intelligent mud level measuring device

Abstract

The invention belongs to the technical field of sewage treatment, and provides an intelligent mud level measuring device which comprises a fixed stand column, a water level sensor, a host and a water depth detection component, the fixed stand column is arranged on one side of a secondary sedimentation tank, and a telescopic component is arranged on the fixed stand column. The water level sensor is connected with the fixed stand column and located above the secondary sedimentation tank, the water depth detection component is connected with the telescopic component and comprises a pressure sensor, a proximity sensor and an elastic mechanism, the elastic mechanism is connected with the telescopic component, and the pressure sensor is arranged at the upper end of the elastic mechanism. The proximity sensor is arranged at the lower end of the elastic mechanism, and the host is in communication connection with the telescopic component, the water level sensor, the pressure sensor and the proximity sensor. By measuring the water level depth and the distance detected by the water level sensor, the mud level depth can be accurately calculated, and manual reading is not needed.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment and provides an intelligent mud level measuring device. Background Art

[0002] In sewage treatment equipment, after the mud-water mixture that has been biochemically treated in the aeration tank or oxidation ditch enters the secondary sedimentation tank, the activated sludge and treated sewage are separated here. Near the outlet end of the secondary sedimentation tank, a clear mud-water interface is formed. This is the mud level, that is, the height from the mud-water interface to the bottom of the tank. The mud level is an important parameter in process operation, which directly reflects the sedimentation characteristics of the activated sludge.

[0003] Currently, there are two main methods: ultrasonic mud level measurement devices and glass tube mud level measurement devices. The ultrasonic mud level measurement device achieves measurement by measuring the difference in ultrasonic reflection at the interface between mud and water. However, in actual use, due to the influence of factors such as impurities in the mud and water, suspended matter on the interface, and ultrasonic reflection errors, the measurement accuracy is poor and there are many factors affecting the measurement. The actual use effect is poor. In addition, the underground environment is complex and does not meet the conditions for use and installation, making it impossible to use. The glass tube mud level device completes the measurement by reading the rising position of the mud in the organic glass tube to obtain the corresponding scale. However, in actual use, due to the contamination of the inner wall of the glass tube by the mud and water in the glass tube, the scale of the glass tube or the measuring tube wall becomes blurred during long-term operation, making it impossible to read accurately. In addition, manual reading is required, which increases the workload.

[0004] For example, the Chinese patent number "202211122758.3" is for "an automatic mud level measuring device", which includes a motor, a rotating shaft, a bobbin, a cable, a mud level sensor, a proximity switch, a slave, a host and a motor controller, and a receiving board. The bobbin is installed on the rotating shaft of the motor, one end of the cable is connected to the mud level sensor, and the other end is wound on the bobbin and connected to the slave. The mud level sensor is connected to the slave through a cable; the mud level sensor and the cable constitute a sinking component, and the motor controller controls the rotation of the motor to make the sinking component sink or rise. The mud level sensor includes a photoelectric sensor and a pressure sensor. The photoelectric sensor is used to determine whether the mud level sensor has reached the mud layer, and the pressure sensor is used to read the pressure value and water depth data. The photoelectric sensor is used to determine whether the sinking component has sunk to the mud layer. When it is detected that the sinking component has sunk to the mud layer, the slave MCU sends a mud layer arrival signal from the RF module to the host MCU. After the host MCU receives the signal, the motor controller immediately controls the motor to stop rotating, and the sinking component stops sinking. After the slave MCU sends the mud layer arrival signal, it continues to send the pressure value and water depth data of the pressure sensor from the RF module to the host MCU. After receiving the water depth data, the host MCU sends the water depth data to the monitoring platform through the 4G module. After that, the host MCU controls the motor controller to make the motor rotate in the opposite direction, and the sinking component starts to rise. When the mud level sensor rises to the position of the proximity switch, the host MCU receives the proximity switch signal, and the host MCU controls the motor to stop rotating through the motor controller, returning to the starting state of the next measurement.

[0005] Although it is used for mud level measurement, it has the following defects: ① The pressure sensor was used to measure the pressure value from the mud surface to the water surface. The water depth was obtained based on the relationship between water depth and pressure. The water level from the bottom of the container to the water surface was not measured. Therefore, the mud level height could not be obtained by mud level = water level - water depth.

[0006] ②The photoelectric sensor uses optical principles and uses light transmittance to judge the mud-water interface, which is not accurate because the mud-water interface is not clear and there is a suspension of mud and water. When the mud concentration is high, the photoelectric sensor will misjudge, resulting in a larger measurement result. Moreover, after long-term use, the photoelectric sensor probe will be wrapped by residual dirt, which will cause the photoelectric sensor to misjudge, resulting in incorrect measurement results. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides an intelligent mud level measuring device, which can accurately calculate the mud level depth by measuring the water level depth and the detection distance of the water level sensor without manual reading.

[0008] The technical solution of the present invention includes: The fixed column is arranged at one side of the secondary sedimentation tank, and a telescopic component is provided on the fixed column.

[0009] The water level sensor is connected to the fixed column and is located above the secondary sedimentation tank to detect the height of the water level sensor from the water surface.

[0010] The water depth detection component is connected to the telescopic component, and the telescopic component drives the water depth detection component to move in the height direction. The water depth detection component includes a pressure sensor, a proximity sensor and an elastic mechanism. The elastic mechanism is connected to the telescopic component. The pressure sensor is arranged at the upper end of the elastic mechanism. The pressure sensor detects water pressure. The proximity sensor is arranged at the lower end of the elastic mechanism to detect whether the upper end of the elastic mechanism enters the triggering distance of the proximity sensor.

[0011] The host is respectively connected to the telescopic component, water level sensor, pressure sensor and proximity sensor. When the upper end of the elastic mechanism enters the triggering distance of the proximity sensor, the host controls the telescopic component to stop working. The host calculates the water depth based on the water pressure detected by the pressure sensor. The host calculates the mud level based on the height of the water level sensor from the bottom of the secondary sedimentation tank, the height of the water level sensor from the water surface and the water depth.

[0012] Furthermore, the elastic mechanism includes a connecting plate, a base and at least three elastic members. The elastic members are located between the connecting plate and the base and are arranged at equal intervals. Both ends of the elastic members are respectively connected to the connecting plate and the base, and the connecting plate is connected to the telescopic member.

[0013] Furthermore, the elastic member is an elastic telescopic rod.

[0014] Furthermore, the telescopic component is a telescopic cylinder, the fixed end of the telescopic cylinder is connected to the fixed column, and the telescopic end of the telescopic cylinder is connected to the elastic mechanism.

[0015] Furthermore, the water level sensor is slidably connected to the fixed column, and the water level sensor slides along the height direction of the fixed column.

[0016] The technical solution provided by the embodiment of the present invention has the following advantages compared with the existing technology: First, the position of the water level sensor is adjusted, and then the height of the water level sensor from the bottom of the secondary sedimentation tank is manually measured. The water level sensor measures the height from the water surface, and then the host controls the telescopic component to extend so that the water depth detection component enters the water. When the lower end of the elastic mechanism contacts the silt, the silt has resistance to the elastic mechanism, and the upper end of the elastic mechanism continues to move downward under the action of the telescopic component. When the upper end of the elastic mechanism enters the detection range of the proximity sensor, the proximity sensor feeds back information to the host, and the host controls the telescopic component to stop working. At this time, the pressure sensor feeds back the detected water pressure to the host, and the host calculates the depth of the water level sensor in the water through the water pressure. Then, the host calculates the mud level height based on the height of the water level sensor from the bottom of the secondary sedimentation tank, the height of the water level sensor from the water surface, and the water depth. Compared with the prior art, the present invention can accurately calculate the mud level depth by measuring the water level depth and the detection distance of the water level sensor, without the need for manual reading.

[0017] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic structural diagram of a water level detection component according to one embodiment of the present invention.

[0020] Reference numerals: 1. Fixed column; 2. Telescopic component; 3. Water level sensor; 4. Pressure sensor; 5. Proximity sensor; 6. Main unit; 7. Connecting plate; 8. Base; 9. Elastic part. DETAILED DESCRIPTION

[0021] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In the description of the embodiments of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0024] In the description of the embodiments of the present invention, the devices requiring power supply are all connected to the power supply via wires, which will not be described in detail in the present invention.

[0025] like Figure 1 and Figure 2 As shown, the present invention provides an intelligent mud level measuring device, comprising: A fixed column 1 is arranged at one side of the secondary sedimentation tank, and a telescopic component 2 is provided on the fixed column 1.

[0026] The water level sensor 3 is connected to the fixed column 1 and is located above the secondary sedimentation tank to detect the height of the water level sensor 3 from the water surface.

[0027] The water depth detection component is connected to the telescopic component 2. The telescopic component 2 drives the water depth detection component to move in the height direction. The water depth detection component includes a pressure sensor 4, a proximity sensor 5 and an elastic mechanism. The elastic mechanism is connected to the telescopic component 2. The pressure sensor 4 is arranged at the upper end of the elastic mechanism. The pressure sensor 4 detects the water pressure. The proximity sensor 5 is arranged at the lower end of the elastic mechanism to detect whether the upper end of the elastic mechanism enters the triggering distance of the proximity sensor 5.

[0028] The host computer 6 is respectively connected to the telescopic component 2, the water level sensor 3, the pressure sensor 4 and the proximity sensor 5. When the upper end of the elastic mechanism enters the triggering distance of the proximity sensor 5, the host computer 6 controls the telescopic component 2 to stop working. The host computer 6 calculates the water depth according to the water pressure detected by the pressure sensor 4. The host computer 6 calculates the mud level according to the height of the water level sensor 3 from the bottom of the secondary sedimentation tank, the height of the water level sensor 3 from the water surface and the water depth.

[0029] When the present invention is used, the position of the water level sensor 3 is first adjusted, and then the height of the water level sensor 3 from the bottom of the second sedimentation tank is manually measured. The water level sensor 3 measures the height from the water surface, and then the host 6 controls the telescopic component 2 to extend so that the water depth detection component enters the water. When the lower end of the elastic mechanism contacts the silt, the silt has resistance to the elastic mechanism, and the upper end of the elastic mechanism continues to move downward under the action of the telescopic component 2. When the upper end of the elastic mechanism enters the detection range of the proximity sensor 5, the proximity sensor 5 feeds information back to the host 6, and the host 6 controls the telescopic component 2 to stop working. At this time, the pressure sensor 4 feeds back the detected water pressure to the host 6, and the host 6 calculates the depth of the water level sensor 3 in the water through the water pressure. Then, the host 6 calculates the mud level height according to the height of the water level sensor 3 from the bottom of the second sedimentation tank, the height of the water level sensor 3 from the water surface, and the water depth. Compared with the prior art, the present invention can accurately calculate the mud level depth by measuring the water level depth and the detection distance of the water level sensor 3, and does not require manual reading.

[0030] Specifically, the water level sensor 3 can obtain water surface height information in real time and accurately, avoiding the errors and limitations of manual measurement and greatly improving the efficiency and accuracy of measurement. Its connection method with the fixed column 1 ensures its stability during the measurement process and can work continuously and reliably. By accurately detecting the height of the water level sensor 3 from the water surface, key basic data is provided for the subsequent calculation of the mud level height. In actual applications, the water level sensor 3 can quickly respond to changes in the water surface height. Whether it is normal fluctuations in the sewage treatment process or water level changes caused by emergencies, it can feedback data in a timely and accurate manner, allowing the system to adjust and optimize the measurement strategy in a timely manner, thereby more accurately calculating the mud level height, effectively avoiding mud level measurement deviations caused by inaccurate water level information, and improving the reliability and accuracy of the entire measurement system.

[0031] Specifically, the pressure sensor 4 is arranged at the upper end of the elastic mechanism, which can accurately detect the water pressure and accurately calculate the water depth through the corresponding relationship between the water pressure and the water depth. Unlike the ultrasonic mud level measuring device, which is affected by impurities, suspended matter and reflection errors in the mud and water, resulting in inaccurate measurements, the measurement method of the pressure sensor 4 is less affected by external factors and can work stably in a complex mud-water mixed environment, ensuring the accuracy of water depth measurement. The proximity sensor 5 is arranged at the lower end of the elastic mechanism. When the upper end of the elastic mechanism enters its triggering distance, it can timely feedback a signal to control the telescopic component 2 to stop working, ensuring that the water depth detection component accurately reaches the measurement position, avoiding damage to the component due to excessive descent or rise, and also improving the accuracy and reliability of the measurement. The presence of the elastic mechanism plays a role of buffering and regulation, and can adapt to different measurement environments and working conditions. Driven by the telescopic component 2, it moves up and down smoothly, ensuring the normal operation of the pressure sensor 4 and the proximity sensor 5, and further improving the accuracy and stability of water depth detection.

[0032] Specifically, in the traditional measurement method, the glass tube mud level device requires manual reading of the scale, which not only increases the workload, but is also prone to measurement errors due to human factors. The introduction of the host 6 can automatically receive and process data information from various sensors. When the proximity sensor 5 detects that the upper end of the elastic mechanism enters the trigger distance, the host 6 quickly controls the telescopic component 2 to stop working, realizing automatic control of the measurement process and avoiding errors and uncertainties caused by manual intervention. The host 6 calculates the water depth based on the water pressure detected by the pressure sensor 4, and then combines the height of the water level sensor 3 from the bottom of the secondary sedimentation tank and the height of the water level sensor 3 from the water surface to accurately calculate the mud level height, greatly improving the accuracy and efficiency of the measurement. In addition, the host 6 can also store, analyze and process the measurement data, providing strong data support for the optimization and operation management of the sewage treatment process, and helping staff to promptly understand the changes in the mud level during sewage treatment so as to make reasonable decisions and ensure the stable operation of the sewage treatment system.

[0033] In the embodiment provided by the present invention, the elastic mechanism includes a connecting plate 7, a base 8 and at least three elastic members 9. The elastic members 9 are located between the connecting plate 7 and the base 8 and are arranged at equal intervals. Both ends of the elastic members 9 are respectively connected to the connecting plate 7 and the base 8, and the connecting plate 7 is connected to the telescopic part 2.

[0034] In the embodiment provided by the present invention, the distance between the connecting plate 7 and the base 8 is at least twice the detection distance of the proximity sensor 5 .

[0035] It should be noted that in order to prevent the base 8 from sinking into the mud and causing inaccurate measurement structure due to the telescopic component 2 continuing to drive the connecting plate 7 to move downward after the base 8 comes into contact with the mud, the elastic member 9 is selected to be an elastic member 9 that is easy to stretch and compress.

[0036] Furthermore, the base 8 is made of stainless steel to prevent rust. The base 8 serves to increase the contact area with the mud surface, reduce the pressure of the contact part between the base 8 and the mud surface, and at the same time play a supporting role. After the base 8 reaches the mud surface, due to the interaction of forces, the connecting plate 7 begins to approach the proximity switch until the proximity sensor 5 is triggered.

[0037] In the embodiment provided by the present invention, the elastic member 9 is an elastic telescopic rod, which has better telescopic performance and structural stability than other elastic elements. During the working process of the water depth detection component, it can flexibly expand and contract according to the actual stress conditions, and can not only smoothly descend and rise under the drive of the telescopic member 2, but also quickly produce elastic deformation when it contacts the mud-water interface or encounters resistance, effectively buffering the impact force. Its stable structural design ensures that it is not easy to deform or damage during long-term use, and can continuously and reliably exert its elastic effect. Compared with traditional elastic elements, the telescopic range and elastic strength of the elastic telescopic rod are easier to control and adjust, and can be optimized according to different measurement requirements and working conditions, thereby improving the adaptability and flexibility of the measuring device. At the same time, the material and manufacturing process of the elastic telescopic rod make it have good wear resistance and corrosion resistance, and can work stably for a long time in the complex mud-water mixed environment of the secondary sedimentation tank, reducing the frequency of maintenance and replacement, reducing the cost of use, and further improving the reliability and economy of the entire measuring device.

[0038] In the embodiment provided by the present invention, the telescopic component 2 is a telescopic cylinder, the fixed end of the telescopic cylinder is connected to the fixed column 1, and the telescopic end of the telescopic cylinder is connected to the elastic mechanism.

[0039] Specifically, the telescopic cylinder has the advantages of fast response speed, stable thrust, and high control accuracy. During the mud level measurement process, the main machine 6 can accurately control the telescopic action of the telescopic cylinder, so that it drives the water depth detection component to move up and down at an appropriate speed and force, and accurately reach the measurement position. The working stability of the telescopic cylinder can effectively avoid the shaking or displacement of the water depth detection component due to unstable power, thereby improving the accuracy of the measurement. In addition, the telescopic cylinder has a compact structure and is easy to install. It adapts to the complex environment of the secondary sedimentation tank and is not easily affected by factors such as muddy water impurities and corrosive substances. It can operate stably for a long time under harsh working conditions, reducing the failure rate of the equipment and reducing maintenance costs. At the same time, it also improves the degree of automation and work efficiency of the entire measuring device, providing a strong guarantee for the smooth progress of mud level measurement.

[0040] In the embodiment provided by the present invention, the water level sensor 3 is slidably connected to the fixed column 1 , and the water level sensor 3 slides along the height direction of the fixed column 1 .

[0041] Specifically, the water level sensor 3 is slidably connected to the fixed column 1 and can slide along the height direction of the fixed column 1. This design brings great flexibility and convenience to the measurement work. In actual application, the water level in the secondary sedimentation tank may fluctuate significantly due to factors such as adjustments to the sewage treatment process and changes in water volume. The sliding connection method of the water level sensor 3 allows it to flexibly adjust its position according to the actual changes in the water level, always maintaining an appropriate height to detect the water surface height. Compared with the traditional fixed installation method, this sliding connection design avoids the problem of measurement failure caused by the water level exceeding the sensor's measurement range, greatly broadening the scope of application of the water level sensor 3. At the same time, the sliding adjustment of the water level sensor 3 is simple to operate, and staff can quickly and accurately adjust its position according to actual needs without the need for complicated disassembly and installation processes, thereby improving work efficiency. In addition, this connection method also makes the water level sensor 3 more convenient during installation and maintenance, making it easier for staff to inspect, debug and replace it, further improving the practicality and reliability of the entire measurement system.

[0042] The working process adopted by the present invention is as follows: After the device of the present invention is powered on, the device is initialized and the height of the water level sensor 3 is adjusted (the height H from the water level sensor 3 to the channel bottom is manually measured). The host computer 6 sends a command to read the data H1 from the water level sensor 3 (the height from the water level sensor 3 to the water surface). At the same time, the host computer 6 sends a command to control the telescopic cylinder to drive the water depth detection component into the water. When it reaches the mud surface, due to the presence of the base 8, the base 8 will remain on the mud surface and no longer move downward. The connecting plate 7 continues to move downward under the force of the telescopic cylinder, gradually approaching the proximity sensor 5. The piston runs at a speed of 10 mm / s (adjustable). When it enters the detection range of the proximity sensor 5 (the detection distance is 8 mm), the proximity sensor 5 is triggered and sends an interrupt signal to the host computer 6. After receiving the interrupt signal from the proximity sensor 5, the host computer 6 immediately sends a stop command to the telescopic cylinder. The host computer 6 sends a command to read the water pressure data from the pressure sensor 4 and convert it into the water depth H2. The mud level height H3 = H-H1-H2 is calculated internally by the host computer 6.

[0043] However, because the pressure sensor 4's descent triggers the proximity switch, the host computer 6 issues a stop command. The device's response time is a minimum of 0.2 seconds and a maximum of 0.4 seconds. The solenoid valve begins responding, with an excitation time of 0.1 seconds / cycle (10 times / second). The piston of the telescopic cylinder travels at a speed of 10 mm / s. Therefore, from the time the proximity sensor 5 senses the pressure sensor 4 until it stops descending, the minimum piston travel distance S = UT = 10 * 0.3 = 3 mm, and the maximum piston travel distance S = UT = 10 * 0.5 = 5 mm. Considering the 10 mm thickness of the base 8 and the approximately 30 mm height of the proximity sensor 5, the final distance H4 from the pressure sensor 4 to the mud surface is approximately 43 to 45 mm. Therefore, a correction H3 = H - H1 - H2 - H4 is required. After completing the calculation, the host computer 6 transmits the measurement data to the host computer via wireless or wired means. The host computer then issues a command to control the telescopic cylinder to raise the mud level sensor as a whole, returning it to the state for the next measurement.

[0044] In the present invention, the power source can be adjusted according to actual conditions, such as replacing it with an electric motor. The corresponding accessories also need to be adapted. There are also many options for the water level sensor 3 used, such as ultrasonic water level meter, radar level meter, tracking water level meter, capacitive water level meter, etc., which can be adjusted according to the actual use scenario and needs, but the overall structure and working process of the mud level sensor remain unchanged.

[0045] The present invention measures the mud level height by indirectly measuring the water level height and water depth through calculation; the proximity sensor 5 used is implemented by the magnetic principle, and even if it is covered with dirt during long-term use, it will not affect the use, and can ensure normal triggering, and ensure the accuracy of the measurement data and the reliability of the equipment; the detection distance of the proximity switch used is 8mm, so the operating speed and response time of the telescopic cylinder are strictly controlled during design to ensure that the piston movement stroke caused by the response time does not exceed 8mm, thereby ensuring that the error between the water depth converted from the pressure value measured by the pressure sensor 4 and the actual water depth does not exceed 8mm, the height of the fixed base 8 and the proximity switch is fixed at 40mm, and the installation height H remains unchanged, the error of the height H1 measured by the water level sensor 3 is controlled within 2mm, and the error of the water depth H2 does not exceed 8mm, then the error of the mud level height calculated according to H3=H-H1-H2-h does not exceed 10mm.

[0046] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0047] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and exemplary embodiments. They can be applied to a variety of fields suitable for the present invention. Further modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. An intelligent mud level measuring device, characterized in that: include: A fixed column (1) is provided on one side of the secondary sedimentation tank, and a telescopic component (2) is provided on the fixed column (1); A water level sensor (3) is connected to the fixed column (1), and the water level sensor (3) is located above the secondary sedimentation tank to detect the height of the water level sensor (3) from the water surface; A water depth detection component is connected to the telescopic component (2), the telescopic component (2) drives the water depth detection component to move in the height direction, the water depth detection component comprises a pressure sensor (4), a proximity sensor (5) and an elastic mechanism, the elastic mechanism is connected to the telescopic component (2), the pressure sensor (4) is arranged at the upper end of the elastic mechanism, the pressure sensor (4) detects water pressure, and the proximity sensor (5) is arranged at the lower end of the elastic mechanism to detect whether the upper end of the elastic mechanism enters the triggering distance of the proximity sensor (5); The host (6) is respectively connected to the telescopic component (2), the water level sensor (3), the pressure sensor (4) and the proximity sensor (5). When the upper end of the elastic mechanism enters the triggering distance of the proximity sensor (5), the host (6) controls the telescopic component (2) to stop working. The host (6) calculates the water depth based on the water pressure detected by the pressure sensor (4). The host (6) calculates the mud level based on the height of the water level sensor (3) from the bottom of the secondary sedimentation tank, the height of the water level sensor (3) from the water surface and the water depth.

2. An intelligent mud level measuring device according to claim 1, characterized in that: The elastic mechanism comprises an annular connecting plate (7), a base (8) and at least three elastic members (9), wherein the elastic members (9) are located between the connecting plate (7) and the base (8) and are arranged at equal intervals, and both ends of the elastic members (9) are respectively connected to the connecting plate (7) and the base (8), the connecting plate (7) is connected to the telescopic component (2), and the pressure sensor (4) is fixed in the connecting plate (7).

3. An intelligent mud level measuring device according to claim 2, characterized in that: The distance between the connecting plate (7) and the base (8) is at least twice the detection distance of the proximity sensor (5).

4. An intelligent mud level measuring device according to claim 2, characterized in that: The elastic member (9) is an elastic telescopic rod.

5. The intelligent mud level measuring device according to claim 1, characterized in that: The telescopic component (2) is a telescopic cylinder, the fixed end of the telescopic cylinder is connected to the fixed column (1), and the telescopic end of the telescopic cylinder is connected to the elastic mechanism.

6. The intelligent mud level measuring device according to claim 1, characterized in that: The water level sensor (3) is slidably connected to the fixed column (1), and the water level sensor (3) slides along the height direction of the fixed column (1).

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