Filter material performance enhancing system and online comprehensive evaluation method

Abstract

The invention discloses a filter material performance enhancing system and an on-line comprehensive evaluation method.The filter material performance enhancing system is characterized in that a pressure adjusting water passing steel plate, a water passing porous filter plate, a filter material layer, a thickened bearing porous plate and a plurality of filter heads are sequentially arranged in a filter body from top to bottom, and a motor is arranged at the top of the filter body; an output shaft of the motor is connected with one end of a first telescopic rod through a first telescopic control shaft body, the other end of the first telescopic rod is connected with one end of a second telescopic rod through a second telescopic control shaft body, the other end of the second telescopic rod is connected with a water-passing porous filter plate, and the second telescopic control shaft body is installed on a pressure-adjusting water-passing steel plate. And a controller for controlling the motor is arranged on the motor. The system and the method can avoid frequent manual shutdown maintenance and filter material replacement.

Description

Technical Field

[0001] The invention belongs to the technical field of water treatment and relates to a filter material performance enhancement system and an online comprehensive evaluation method. Background Art

[0002] In today's sewage treatment field, filtration technology plays an indispensable and fundamental role as a key link in ensuring water quality, removing impurities and achieving fine fluid treatment. The performance of filter media, as the core element of the filtration system, is directly related to the operation effect, treatment cost and quality standard of the output fluid of the entire filtration system.

[0003] Traditional filters have many limitations in terms of construction and operation control. From a structural point of view, conventional filters are usually composed of only a simple box and inlet and outlet pipes, with the internal filter media statically filled, and lack a flexible and adjustable mechanism to cope with complex and changeable working conditions. In the industrial wastewater treatment process, the quality of the inlet water varies greatly due to the discharge of different production batches. It is not only impacted by high concentrations of suspended solids, but also contains complex organic pollutants and variable pH fluctuations. The static filter media structure is difficult to maintain stable filtration efficiency for a long time under such fluctuating conditions. As the filter media becomes clogged and the adsorption sites become saturated, frequent manual shutdowns for maintenance and replacement of filter media become a helpless move, which not only interrupts production and increases the investment in manpower and material resources for operation and maintenance, but also easily damages the filter media and equipment due to improper operation. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a filter material performance enhancement system and an online comprehensive evaluation method, which can avoid frequent manual shutdown maintenance and replacement of filter materials.

[0005] To achieve the above object, the present invention discloses a filter material performance enhancement system, comprising a filter body, a first telescopic control shaft body, a first telescopic rod, a second telescopic control shaft body and a second telescopic rod;

[0006] The filter body is provided with a pressure regulating water-passing steel plate, a water-passing porous filter plate, a filter material layer, a thickened supporting porous plate and a plurality of filter heads in sequence from top to bottom; a motor is provided on the top of the filter body; the output shaft of the motor is connected to one end of a first telescopic rod via a first telescopic control shaft; the other end of the first telescopic rod is connected to one end of a second telescopic rod via a second telescopic control shaft; the other end of the second telescopic rod is connected to the water-passing porous filter plate; the second telescopic control shaft is installed on the pressure regulating water-passing steel plate; and a controller for controlling the motor is provided on the motor.

[0007] The further improvement of the filter material performance enhancement system of the present invention is:

[0008] Furthermore, it also includes an inlet pipe and an outlet pipe. The inlet pipe is connected to the water inlet at the top of the filter body through a first valve, an inlet pipe intelligent flow meter, a first online turbidity meter and a first online pressure gauge; the filtered water outlet at the bottom of the filter body is connected to the outlet pipe, and the outlet pipe is provided with a third valve, a third online turbidity meter and a third online pressure gauge.

[0009] Furthermore, it also includes a backwash drain pipe, a backwash air inlet pipe and a backwash water inlet pipe. The backwash drain port on the top of the filter body is connected to the backwash drain pipe. The backwash drain pipe is provided with a second online turbidity meter, a second online pressure gauge and a second valve. The backwash air inlet pipe is connected to the backwash air inlet of the filter body. The backwash water inlet pipe is provided with a fifth valve, and the backwash air inlet pipe is provided with a fourth valve.

[0010] Furthermore, an exhaust valve and a fourth online pressure gauge are provided at the bottom of the filter body.

[0011] Furthermore, the specific working process is:

[0012] S1: The controller controls the motor to drive the first telescopic control shaft, the first telescopic rod moves, and the pressure is initially adjusted to adjust the position of the water-passing steel plate in the filter tank;

[0013] S2: When the filtering performance of the filter material decreases, it is necessary to strengthen the compaction of the filter material. The controller controls the motor to adjust the extension of the first telescopic rod, and applies greater pressure to the filter material layer through the pressure-adjusting water-passing steel plate, forcing the water flow to penetrate the filter material layer more evenly.

[0014] S3: As the filtering time increases, the filtering performance of the filter material continues to decrease and the filter material gradually becomes clogged. The second telescopic control shaft is used to control the extension of the second telescopic rod to adjust the position of the water-passing porous filter plate to prevent local water flow short-circuiting caused by the displacement of the water-passing steel plate due to pressure regulation.

[0015] The present invention discloses an online comprehensive evaluation method for a filter material performance enhancement system, comprising the following steps:

[0016] Constructing a filter material pressure model, wherein the filter material pressure model is a mathematical relationship model of the change of the filtration speed of the filter material under the action of pressure;

[0017] The state of the filter media is evaluated according to the filter media pressure model.

[0018] The further improvement of the online comprehensive evaluation method of the filter material performance enhancement system of the present invention is:

[0019] Further, the filter material pressure model is expressed as:

[0020]

[0021] Among them, v is the filtration speed, k0 is the permeability coefficient of the filter media, μ is the dynamic viscosity of the fluid, E0 is the compression modulus of the clean filter media, C is the contamination coefficient, k is a constant greater than 0, ε0 is the porosity of the filter media naturally placed, h is the thickness of the filter media layer, and P is the pressure applied by the facility above the filter media.

[0022] Furthermore, a v(P) variation curve is drawn, and the degree of clogging of the filter material is evaluated by observing the change in the slope of the curve.

[0023] Furthermore, when the absolute value of the slope is smaller, it means that under the current pressure gradient, the flow rate is smaller and the filter material is slowly blocked; when the absolute value of the slope is larger, it means that under the current pressure gradient, the flow rate is larger and the filter material is normal.

[0024] Further, when it is determined that the filter material state is slowly blocked, the controller controls the motor to drive the first telescopic control shaft, and the first telescopic rod moves downward and extends, and the pressure is adjusted to adjust the position of the water-permeable porous filter plate in the filter material layer;

[0025] When the filter material state is judged to be progressively blocked, the position of the water-passing porous filter plate is adjusted through the second telescopic shaft control shaft body to prevent local water flow short circuit caused by displacement of the water-passing steel plate due to pressure adjustment.

[0026] The present invention has the following beneficial effects:

[0027] During specific operation, the filter material performance enhancement system and online comprehensive evaluation method described in the present invention evaluate the state of the filter material according to the filter material pressure model. When it is judged that the filter material state is slowly blocked, the controller controls the motor to drive the first telescopic control shaft body, and the first telescopic rod moves downward and extends, and adjusts the position of the pressure-adjusting water-permeable porous filter plate in the filter material layer. When the filter material state is judged to be gradually blocked, the position of the water-permeable porous filter plate is adjusted by the second telescopic shaft control shaft body to prevent local water flow short circuit caused by the displacement of the pressure-adjusting water-permeable steel plate, thereby avoiding frequent manual shutdown for maintenance and replacement of filter material, and the practicability is extremely strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a structural diagram of the present invention.

[0030] Figure 2 This is a large-scale drawing of the pressure regulating filter plate set.

[0031] Among them, 1a is the first valve, 1b is the second valve, 1c is the third valve, 1d is the fourth valve, 1e is the fifth valve, 2a is the first online turbidity meter, 2b is the second online turbidity meter, 2c is the third online turbidity meter, 3a is the first online pressure gauge, 3b is the second online pressure gauge, 3c is the third online pressure gauge, 3d is the fourth online pressure gauge, 4 is the controller, 5 is the motor, 6 is the first telescopic control shaft, 7 is the first telescopic rod, 8 is the second telescopic control shaft, 9 is the second telescopic rod, 10 is the pressure regulating water-passing steel plate, 11 is the water-passing porous filter plate, 12 is the thickened supporting porous plate, 13 is the filter head, 14 is the exhaust valve, 101 is the water inlet pipe intelligent flow meter, 102 is the water outlet pipe, 103 is the backwash water inlet pipe, 104 is the backwash air inlet pipe, and 105 is the backwash drain pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms “include” and “comprises” indicate the presence of described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0034] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0035] It should be further understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0036] It should be understood that, although the terms first, second, third, etc. may be used to describe preset ranges, etc. in the embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are only used to distinguish preset ranges from each other. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0037] The word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0040] Embodiment 1

[0041] refer to Figure 1 and Figure 2The filter material performance enhancement system of the present invention comprises a filter body, a water inlet pipe is connected to the water inlet at the top of the filter body through a first valve 1a, a water inlet pipe intelligent flow meter 101, a first online turbidity meter 2a and a first online pressure gauge 3a, a backwash drain outlet at the top of the filter body is connected to a backwash drain pipe 105, a second online turbidity meter 2b, a second online pressure gauge 3b and a second valve 1b are arranged on the backwash drain pipe 105, and an exhaust valve 14 and a fourth online pressure gauge 3d are arranged at the bottom of the filter body;

[0042] The backwash water inlet pipe 103 is connected to the backwash water inlet at the bottom of the filter body, the backwash air inlet pipe 104 is connected to the backwash air inlet of the filter body, the backwash water inlet pipe 103 is provided with a fifth valve 1e, the backwash air inlet pipe 104 is provided with a fourth valve 1d, the filtered water outlet at the bottom of the filter body is connected to the water outlet pipe 102, and the water outlet pipe 102 is provided with a third valve 1c, a third online turbidity meter 2c and a third online pressure gauge 3c.

[0043] The filter body is provided with a pressure regulating water-passing steel plate 10, a water-passing porous filter plate 11, a filter material layer, a thickened supporting porous plate 12 and a plurality of filter heads 13 in sequence from top to bottom. A motor 5 is provided on the top of the filter body. The output shaft of the motor 5 is connected to one end of the first telescopic rod 7 via a first telescopic control shaft 6. The other end of the first telescopic rod 7 is connected to one end of the second telescopic rod 9 via a second telescopic control shaft 8. The other end of the second telescopic rod 9 is connected to the water-passing porous filter plate 11. The second telescopic control shaft 8 is installed on the pressure regulating water-passing steel plate 10. The motor 5 is provided with a controller 4 for controlling the motor 5.

[0044] It should be noted that, in the present invention, the output end of the motor 5 is connected to the first telescopic control shaft 6 for controlling the length of the first telescopic rod 7 .

[0045] A second telescopic control shaft 8 is provided on the pressure regulating water-passing steel plate 10 for controlling the length of the second telescopic rod 9. The controller 4 automatically controls the second telescopic rod 9 to adjust the pressure applied by the water-passing porous filter plate 11 to the filter material layer, thereby enhancing the filter material performance.

[0046] The controller 4 controls the motor 5, the first valve 1a, the second valve 1b, the third valve 1c, the fourth valve 1d, the fifth valve 1e, the first telescopic control shaft 6 and the second telescopic control shaft 8 to work according to the indications of the first online turbidity meter 2a, the second online turbidity meter 2b, the third online turbidity meter 2c, the first online pressure gauge 3a, the second online pressure gauge 3b, the third online pressure gauge 3c and the fourth online pressure gauge 3d. Among them, the operation of the motor 5 drives the first telescopic control shaft 6 to extend and retract to adjust the relative position of the pressure-adjusting water-passing steel plate 10 and the filter material layer. When it is necessary to strengthen the compaction of the filter material to cope with high turbidity or the initial stage of clogging, the first telescopic rod 7 is extended, and the pressure-adjusting water-passing steel plate 10 is used to apply pressure to the filter material layer, forcing the water flow to penetrate the filter material layer more evenly and improve the effect of intercepting impurities; at the same time, the second telescopic shaft control shaft 8 cooperates with the action to adjust the relative position of the water-passing porous filter plate 11 to prevent abnormalities such as local water flow short circuit caused by the displacement of the pressure-adjusting water-passing steel plate 10, thereby ensuring the uniformity of filtration.

[0047] The working process of the filter material performance enhancement system of the present invention is as follows:

[0048] S1: The controller 4 controls the motor 5 to drive the first telescopic control shaft 6 and the first telescopic rod 7 to move, and preliminarily adjust the position of the pressure regulating water-passing steel plate 10 in the filter tank.

[0049] S2: According to the real-time filter material performance evaluation model analysis, if the filtering performance of the filter material is reduced, it is necessary to strengthen the compaction of the filter material. The controller 4 controls the motor 5 to adjust the extension of the first telescopic rod 7, and applies greater pressure to the filter material layer through the pressure-adjusting water-passing steel plate 10, forcing the water flow to penetrate the filter material layer more evenly, thereby improving the filtering effect.

[0050] S3: As the filtering time increases, the filtering performance of the filter material continues to decrease and the filter material is gradually blocked. The second telescopic control shaft 8 is used to control the extension of the second telescopic rod 9 to adjust the position of the water-passing porous filter plate 11 to prevent local water flow short-circuiting caused by the displacement of the pressure-adjusting water-passing steel plate 10, thereby ensuring the uniformity of filtration.

[0051] Embodiment 2

[0052] The online comprehensive evaluation method of the filter material performance enhancement system of the present invention comprises:

[0053] 1) Construct filter material pressure model;

[0054] The specific operations of step 1) are:

[0055] Assume that the filter media is a uniform porous medium, the porosity of the filter media is ε, the porosity of the filter media when naturally placed is ε0, the thickness of the filter media layer is h, the pressure applied by the facility on the filter media is P, and the compression modulus of the filter media is E.

[0056] According to the theory of elastic mechanics, when pressure is applied to the filter material, the filter material will be compressed and the porosity will change. The change in porosity Δε and the pressure P can be approximately expressed by the following linear relationship:

[0057]

[0058] Then the porosity ε of the filter material under pressure is:

[0059]

[0060] Since the contamination of the filter material will affect its compressibility, the contamination coefficient C is introduced to correct the above relationship. When the filter material is contaminated, the pollutants will fill the pores and make the filter material harder, and its compression modulus E will increase.

[0061] Assume that there is a linear relationship between the compression modulus E and the contamination coefficient C:

[0062] E=E0(1+kC) (3)

[0063] Where E0 is the compression modulus of clean filter media, C is the contamination coefficient, dimensionless, C = 0 means the filter media is completely clean, C = 1 means the filter media is completely blocked, k is a constant greater than 0, indicating the degree of influence of contamination on the compression modulus;

[0064] Substituting formula (3) into formula (2), we get:

[0065]

[0066] According to Darcy's law, the relationship between filtration velocity v, porosity and pressure P is:

[0067]

[0068] Among them, k0 is the permeability coefficient of the filter material, and μ is the dynamic viscosity of the fluid;

[0069] Substituting formula (4) into formula (5), we get:

[0070]

[0071] The above formula represents the mathematical relationship model of the change of filtration speed of filter media under pressure, namely the filter media pressure model, which helps to restore how pressure changes affect filtration performance, so as to reasonably control the pressure and optimize the filtration process according to the degree of contamination of the filter media in actual applications.

[0072] 2) Estimated based on filter material pressure model;

[0073] The specific operations of step 2) are:

[0074] 21) Data acquisition system construction: Use a data acquisition card or module that adapts to the sensor signal to connect the signals of the pressure gauge and turbidity meter to realize real-time data acquisition and conversion, transmit the data to the controller analysis and processing unit, set the appropriate acquisition cycle, and automatically add timestamps to the collected data for subsequent time series analysis.

[0075] 22) Data processing: The controller analysis and processing unit screens the collected pressure data, eliminates high-frequency noise interference caused by pipeline vibration, pump start and stop, etc., restores the true pressure change trend, and performs linear or nonlinear compensation correction for turbidity data according to the sensor calibration curve to correct measurement deviations caused by sensor aging and ambient temperature and humidity.

[0076] 23) Construction of filter media pressure model: Determine the corresponding functional relationship between filter media pressure and filtration rate in the box Therefore, a v(P) variation curve is established. By observing the change in the slope of the curve, the degree of filter material blockage can be evaluated. When the absolute value of the slope is smaller, it means that under the current pressure gradient, the flow rate is smaller, and the filter material is slowly blocked; when the absolute value of the slope is larger, it means that under the current pressure gradient, the flow rate is larger, and the filter material is normal.

[0077] 24) Establish a filter material performance evaluation model, collect data on the filter under normal operating conditions, construct a filter material performance evaluation model with pressure-turbidity-filtration rate as coordinate axes, and clearly define the parameter ranges and boundaries corresponding to different states of the filter material.

[0078] 25) Data analysis and diagnosis, draw a recent v(P) change curve model, analyze characteristic indicators such as curve slope and fluctuation variance, analyze the gradual blockage of filter material, attenuation of adsorption performance or external occasional interference, and formulate adaptation plans for different fault causes. When the filter material state is judged to be slowly blocked, the controller controls the motor to drive the first telescopic control shaft 6, and the first telescopic rod 7 moves downward and extends, adjusting the position of the pressure-adjusting water-passing porous filter plate 11 in the filter material layer to improve the filtering effect. When the filter material state is judged to be gradually blocked, the position of the water-passing porous filter plate 11 is adjusted through the second telescopic shaft control shaft 8 to prevent local water flow short circuit caused by displacement of the pressure-adjusting water-passing steel plate 10, and ensure the uniformity of filtration. When the filter material state is judged to be blocked, a timed backwashing process is arranged. In view of the decline in adsorption performance, consider partially replacing the filter material layer to enhance the filtering efficiency; if the filter material is confirmed to be damaged, the machine is shut down urgently and the filter material replacement operation is organized quickly; if it is caused by external interference, the front-end pretreatment link is optimized.

[0079] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0080] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0081] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A filter material performance enhancement system, characterized in that: It comprises a filter body, a first telescopic control shaft body (6), a first telescopic rod (7), a second telescopic control shaft body (8) and a second telescopic rod (9); The filter body is provided with a pressure regulating water-passing steel plate (10), a water-passing porous filter plate (11), a filter material layer, a thickened supporting porous plate (12) and a plurality of filter heads (13) in sequence from top to bottom. A motor (5) is provided on the top of the filter body. The output shaft of the motor (5) is connected to one end of a first telescopic rod (7) via a first telescopic control shaft (6). The other end of the first telescopic rod (7) is connected to one end of a second telescopic rod (9) via a second telescopic control shaft (8). The other end of the second telescopic rod (9) is connected to the water-passing porous filter plate (11). The second telescopic control shaft (8) is installed on the pressure regulating water-passing steel plate (10). The motor (5) is provided with a controller (4) for controlling the motor (5).

2. The filter media performance enhancement system according to claim 1, characterized in that: The invention also comprises a water inlet pipe and a water outlet pipe (102); the water inlet pipe is connected to the water inlet at the top of the filter body via a first valve (1a), a water inlet pipe intelligent flow meter (101), a first online turbidity meter (2a) and a first online pressure gauge (3a); the filtered water outlet at the bottom of the filter body is connected to the water outlet pipe (102); and the water outlet pipe (102) is provided with a third valve (1c), a third online turbidity meter (2c) and a third online pressure gauge (3c).

3. The filter media performance enhancement system according to claim 1, characterized in that: The filter further comprises a backwash drain pipe (105), a backwash air inlet pipe (104) and a backwash water inlet pipe (103); the backwash drain port at the top of the filter body is connected to the backwash drain pipe (105); a second online turbidity meter (2b), a second online pressure gauge (3b) and a second valve (1b) are arranged on the backwash drain pipe (105); the backwash air inlet pipe (104) is connected to the backwash air inlet of the filter body; a fifth valve (1e) is arranged on the backwash water inlet pipe (103); and a fourth valve (1d) is arranged on the backwash air inlet pipe (104).

4. The filter media performance enhancement system according to claim 1, characterized in that: An exhaust valve (14) and a fourth online pressure gauge (3d) are provided at the bottom of the filter body.

5. The filter media performance enhancement system according to claim 1, characterized in that: The specific working process is: S1: The controller (4) controls the motor (5) to drive the first telescopic control shaft (6), so that the first telescopic rod (7) moves, and preliminarily adjusts the position of the pressure regulating water-passing steel plate (10) in the filter tank; S2: When the filtering performance of the filter material decreases, it is necessary to strengthen the compaction of the filter material. The controller (4) controls the motor (5) to adjust the extension of the first telescopic rod (7), and applies a greater pressure to the filter material layer through the pressure-adjusting water-passing steel plate (10), forcing the water flow to penetrate the filter material layer more evenly. S3: As the filtering time increases, the filtering performance of the filter material continues to decrease and the filter material gradually becomes clogged. The second telescopic control shaft (8) is used to control the extension of the second telescopic rod (9) to adjust the position of the water-passing porous filter plate (11) to prevent local water flow short-circuiting caused by displacement of the pressure-adjusting water-passing steel plate (10).

6. An online comprehensive evaluation method for the filter material performance enhancement system of claim 1, characterized in that: The following steps are involved: Constructing a filter material pressure model, wherein the filter material pressure model is a mathematical relationship model of the change of the filtration speed of the filter material under the action of pressure; The state of the filter media is evaluated according to the filter media pressure model.

7. The online comprehensive evaluation method for the filter material performance enhancement system according to claim 6, characterized in that: The filter material pressure model is expressed as: Among them, v is the filtration speed, k0 is the permeability coefficient of the filter media, μ is the dynamic viscosity of the fluid, E0 is the compression modulus of the clean filter media, C is the contamination coefficient, k is a constant greater than 0, ε0 is the porosity of the filter media naturally placed, h is the thickness of the filter media layer, and P is the pressure applied by the facility above the filter media.

8. The online comprehensive evaluation method for the filter material performance enhancement system according to claim 6, characterized in that: Draw the v(P) variation curve and evaluate the degree of filter material blockage by observing the change in the slope of the curve.

9. The online comprehensive evaluation method for the filter material performance enhancement system according to claim 8, characterized in that: When the absolute value of the slope is smaller, it means that under the current pressure gradient, the flow rate is smaller and the filter material is slowly blocked; when the absolute value of the slope is larger, it means that under the current pressure gradient, the flow rate is larger and the filter material is normal.

10. The online comprehensive evaluation method for the filter material performance enhancement system according to claim 8, characterized in that: When it is determined that the filter material is in a slowly blocked state, the controller controls the motor to drive the first telescopic control shaft (6), and the first telescopic rod (7) moves downward and extends out, and the pressure is adjusted to adjust the position of the water-permeable porous filter plate (11) in the filter material layer; When it is determined that the filter material state is progressively blocked, the position of the water-passing porous filter plate (11) is adjusted through the second telescopic shaft control shaft body (8) to prevent local water flow short circuit caused by displacement of the pressure-adjusting water-passing steel plate (10).

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