Fine treatment device for papermaking wastewater by using multi-stage filtration technology

Abstract

The application discloses a papermaking wastewater fine treatment device adopting a multi-stage filtering technology and belongs to the field of papermaking wastewater treatment equipment.The papermaking wastewater fine treatment device comprises a fixed frame one and a fixed frame two, the fixed frame one is located above the fixed frame two, collecting boxes are fixedly installed at the two ends of the fixed frame one and the fixed frame two, a control panel is fixedly installed on the fixed frame two, and adjusting assemblies are movably installed on the fixed frame one and the fixed frame two.The application collects internal interference factors and external interference factors data during the use of the treatment device, obtains corresponding control signals, comprehensively and efficiently supervises the running process of the treatment device during use, obtains relevant evaluation signals, sends corresponding early warnings to the supervision end according to the evaluation signals, realizes accurate judgment and management of the use of the treatment device, effectively improves the working efficiency of the treatment device, and avoids affecting the continuity of the filtering work.

Description

Technical Field

[0001] This invention relates to the field of papermaking wastewater treatment equipment, and more particularly to a fine treatment device for papermaking wastewater using multi-stage filtration technology. Background Technology

[0002] Papermaking wastewater refers to the wastewater generated during the pulping and papermaking process, including pulping and cooking waste liquor, washing wastewater, bleaching wastewater, and paper machine white water. Papermaking wastewater has a complex composition and poor biodegradability, making it a difficult type of industrial wastewater to treat. Therefore, it must be filtered before being discharged into the papermaking industry.

[0003] However, in the existing papermaking wastewater fine treatment device, the filter plates in the treatment device will gradually become clogged over time, affecting the wastewater filtration effect. In order to address the above problem, Chinese patent CN2021109649099 discloses a papermaking wastewater filtration treatment device, which sets a scraping mechanism on the secondary filtration mechanism to clean the paper scraps remaining after the wastewater is filtered by the second and first filtration mechanisms, thus avoiding the problem that paper scraps easily adhere to the second and first filtration mechanisms and cause a decrease in wastewater filtration efficiency.

[0004] However, in actual use, the above technical solutions are difficult to fully scrape and clean the impurities in the filter holes. When processing in large batches, impurities are still easy to accumulate in the filter holes and cause the filter plate to become clogged. If the machine is stopped to clean the filter plate, the processing efficiency will be reduced and the continuity of work will be affected.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a fine treatment device for papermaking wastewater using multi-stage filtration technology, so as to solve the technical defects mentioned in the background art.

[0007] The objective of this invention can be achieved through the following technical solution: a fine treatment device for papermaking wastewater using multi-stage filtration technology, comprising a fixed frame one and a fixed frame two, the fixed frame one being located above the fixed frame two, collection boxes being fixedly installed at both ends of the fixed frame one and the fixed frame two, a control panel being fixedly installed on the fixed frame two, and adjustment components being movably installed on both the fixed frame one and the fixed frame two;

[0008] The adjustment assembly includes multiple connecting pipes, baffles, and connecting rods. The baffles are fixedly connected to the connecting pipes, and the connecting pipes are fixedly connected to each other via connecting rods. Fixing frame one is fixedly connected to fixing frame two via connecting pipes. Both fixing frame one and fixing frame two are fixedly installed with partition plates.

[0009] Preferably, the interior of the first fixing frame is divided into cavity one and cavity two by a partition plate, and the interior of the second fixing frame is divided into cavity three and cavity four by a partition plate;

[0010] Filter plates are movably installed in chambers one, two, three and four. Cleaning pipes and collection boxes are fixedly installed on both sides of fixed brackets one and two, with the cleaning pipes located above the collection boxes.

[0011] Preferably, both the first and second fixed frames have liquid inlets at their tops, and both the first and second fixed frames have liquid outlets at their bottoms. Both the liquid inlets and outlets are movably fitted with connecting pipes, and sealing gaskets are fixedly installed on both sides of the filter plate, with the sealing gaskets fitting against the inner walls of the first and second fixed frames.

[0012] Preferably, rotating rods are fixedly installed at both ends of the filter plate, and motors are fixedly installed on both sides of the first and second fixing frames. The output end of the motor is fixedly connected to the rotating rod on one side of the filter plate, and the side of the filter plate away from the motor is movably connected to the partition plate through the rotating rod.

[0013] Preferably, a chute is provided at both the inlet and outlet, a baffle is movably installed in the chute, a scraper is fixedly installed on the baffle, the bottom of the scraper is in contact with the bottom of the first and second fixed frames, a slag discharge port is provided on one side of the collection box, and the scraper is located at the slag discharge port.

[0014] Preferably, a hydraulic cylinder is fixedly installed on the side of the mounting bracket away from the control panel, and the output end of the hydraulic cylinder is fixedly connected to the connecting rod.

[0015] Preferably, the control panel includes a comprehensive data acquisition unit, a work evaluation unit, a risk assessment unit, and an early warning and control unit;

[0016] The integrated data acquisition unit is used to collect data on internal and external interference factors of the treatment device. The internal interference factor data includes the operation assessment value and the net value of the treated water, while the external interference factor data includes the wastewater treatment risk value. The unit then sends the external and internal interference factor data to the operation assessment unit.

[0017] After receiving data on external and internal interference factors, the work assessment unit performs a work assessment on the data and generates a risk signal based on the assessment results. The obtained risk signal is then sent to the risk assessment unit via a communication connection.

[0018] After receiving the data from the work assessment unit, the risk assessment unit conducts a risk assessment and generates a control signal based on the assessment results. The control signal is then sent to the early warning control unit, which in turn controls the components to make corresponding action instructions.

[0019] Preferably, the risk assessment unit analyzes the processing device as follows:

[0020] After obtaining the operating evaluation value and treated water net value of the treatment device in each sub-time period, the product value obtained after data normalization of the operating evaluation value and treated water net value is marked as the dynamic risk assessment coefficient, and then the dynamic risk assessment coefficient Pi in each sub-time period of the equipment is obtained. A rectangular coordinate system is established with the number of sub-time periods as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis. The dynamic risk assessment coefficient curve is plotted by plotting points.

[0021] Simultaneously, a preset dynamic risk assessment coefficient threshold curve is plotted in this coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value and risk difference value are compared and analyzed with the preset risk angle range value and preset risk difference value recorded and stored internally, and a control signal is generated.

[0022] The beneficial effects of this invention are as follows:

[0023] (1) The present invention uses the cooperation of a fixed frame 1, a fixed frame 2 and a connecting pipe. In the initial state, cavity 1 is connected to cavity 3 through the connecting pipe. Wastewater enters cavity 1 through the connecting pipe at the top of fixed frame 1. After coarse filtration by the filter plate in cavity 1, the wastewater is transported to cavity 3 through the connecting pipe. Then, it is finely filtered by the filter plate in cavity 3. When the filter plates in cavity 1 and cavity 3 become clogged and need to be cleaned, it is only necessary to move the connecting pipe to connect cavity 2 and cavity 4. The wastewater enters through cavity 2 and undergoes coarse filtration and fine filtration in sequence. No machine shutdown is required, ensuring continuous operation.

[0024] (2) The present invention also uses the motor and connecting pipe in combination. After the moving pipe is switched, the scraper in cavity one and cavity three moves and the collection box is connected to the inside of cavity one and cavity three. At this time, the motor is started to drive the filter plates in cavity one and cavity three to flip. Clean water is transported to cavity one and cavity three through the cleaning pipe. Under the action of gravity, it hits the filter plate and backwashes the filter holes. The impurities fall off under the action of rinsing and flow into the collection box. Similarly, when the filter plates in cavity two and cavity four need to be cleaned, the above steps can be repeated. There is no need to disassemble the equipment, which greatly improves the processing efficiency.

[0025] (3) The present invention also collects data on internal and external interference factors during the use of the processing equipment to obtain corresponding control signals, and conducts comprehensive and efficient supervision of the operation of the processing equipment during use. That is, it comprehensively analyzes and compares the collected data range with the preset data range to obtain relevant evaluation signals, and issues corresponding warnings to the supervision end accordingly. At the same time, the control components make compensatory actions to realize the adaptive adjustment of the processing device and accurate judgment and control of the usage situation. It has a high degree of intelligence and effectively improves the working efficiency of the processing device. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings;

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the adjustment component in this invention;

[0029] Figure 3 This is a schematic diagram of the structure of the second fixing frame in this invention;

[0030] Figure 4 This is a schematic diagram of the fixing frame structure in this invention;

[0031] Figure 5 This is a system block diagram of the present invention;

[0032] Figure 6 This is a cross-sectional view of the present invention;

[0033] Figure 7 This is a schematic diagram of the filter plate structure in this invention;

[0034] Figure 8 This is a schematic diagram of the baffle structure in this invention.

[0035] Legend: 1. Fixing frame one; 101. Liquid inlet; 102. Liquid outlet; 103. Divider plate; 104. Cavity one; 105. Cavity two; 106. Cavity three; 107. Cavity four; 108. Cleaning pipe; 2. Fixing frame two; 3. Collection box; 4. Control panel; 5. Adjustment component; 501. Connecting pipe; 502. Baffle; 503. Connecting rod; 504. Filter plate; 505. Rotating rod; 506. Scraper; 507. Slag discharge port. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figure 1 - Figure 5 As shown, this embodiment is a fine treatment device for papermaking wastewater using multi-stage filtration technology, including a fixed frame 1 and a fixed frame 2. The fixed frame 1 is located above the fixed frame 2. Collection boxes 3 are fixedly installed at both ends of the fixed frame 1 and the fixed frame 2. A control panel 4 is fixedly installed on the fixed frame 2. Adjustment components 5 are movably installed on both the fixed frame 1 and the fixed frame 2.

[0038] The regulating component 5 includes a connecting pipe 501, a baffle 502, and a connecting rod 503. Multiple connecting pipes 501 are provided, and the connecting pipes 501 are fixedly connected to each other by the connecting rod 503. Fixing frame one 1 is fixedly connected to fixing frame two 2 through the connecting pipes 501. Both fixing frame one 1 and fixing frame two 2 have liquid inlets 101 at the top. Both fixing block one and fixing frame two 2 have liquid outlets 102 fixedly installed at the bottom. The liquid inlet 101 at the top of fixing frame one 1 is used for waste liquid to enter. The liquid outlet 102 at the bottom of fixing frame one 1 is used to connect to the liquid inlet 101 at the top of fixing frame two 2 through the connecting pipe 501. The liquid outlet 102 at the bottom of fixing frame two 2 is used for the output of filtered liquid.

[0039] Both the inlet 101 and the outlet 102 are movably equipped with connecting pipes 501. Baffles 502 are fixedly connected to connecting pipes 501. Baffles 502 are used to close the other side when one side of the inlet 101 or outlet 102 is open. Multiple inlets 101 and outlets 102 are provided. Dividers 103 are fixedly installed in both the first fixed frame 1 and the second fixed frame 2. The inside of the first fixed frame 1 is divided into cavity 104 and cavity 2 105 by the dividers 103. The inside of the second fixed frame 2 is divided into cavity 3 106 and cavity 4 107 by the dividers 103. A hydraulic cylinder is fixedly installed on the side of the second fixed frame 2 away from the control panel 4. The output end of the hydraulic cylinder is fixedly connected to the connecting rod 503. When the position of the connecting pipe 501 is adjusted, the hydraulic cylinder is activated to push the connecting rod 503 to move, thereby driving the connecting pipe 501 to move.

[0040] In the initial state, cavity 104 is connected to cavity 3 106 via connecting pipe 501. Wastewater enters cavity 104 through connecting pipe 501 at the top of fixed frame 1. After coarse filtration by filter plate 504 in cavity 104, the wastewater is transported to cavity 3 106 through connecting pipe 501, where it undergoes fine filtration by filter plate 504. When filter plates 504 in cavity 104 and cavity 3 106 become clogged and need cleaning, simply move connecting pipe 501 to connect cavity 2 105 and cavity 4 107. Wastewater then enters cavity 2 105 for coarse and fine filtration in sequence, without the need for machine shutdown, ensuring continuous operation.

[0041] Control panel 4 includes a comprehensive data acquisition unit, a work evaluation unit, a risk assessment unit, and a control unit;

[0042] The integrated data acquisition unit collects and processes internal and external interference factor data from the device, and then sends the internal and external interference factor data to the work evaluation unit respectively.

[0043] Internal interference factor data includes operational assessment values ​​and treated water net value, while external interference factor data includes wastewater treatment risk values.

[0044] Upon receiving data on internal and external interference factors, the work assessment unit immediately performs a risk assessment analysis on the data. The specific steps are as follows:

[0045] The operating evaluation value of the processing device is obtained in each sub-time period. The operating evaluation value represents the part of the product value obtained after normalization of the operating parameters in the sub-time period that exceeds the storage preset threshold. The operating parameters represent the processing speed value.

[0046] The processing speed value is obtained by a liquid flow meter fixedly installed inside the connecting pipe 501. The processing speed value represents the speed at which wastewater flows from fixed frame 1 to fixed frame 2 during the use of the treatment device. That is, the timing starts when the wastewater enters fixed frame 1 through the top connecting pipe 501 and stops when the wastewater reaches the top connecting pipe 501 of fixed frame 2, and the collected time result is assigned the symbol T1. The timing starts when the wastewater enters fixed frame 2 through the top connecting pipe 501 and stops when the wastewater is discharged from the bottom connecting pipe 501 of fixed frame 2, and the collected time result is assigned the symbol T2. The larger the values ​​of T1 and T2, the slower the wastewater is processed by fixed frame 1 and fixed frame 2, respectively. The processing speed value To is obtained by the formula To = T1 + T2.

[0047] During the operation of the processing device, a dynamic change curve is plotted with time as the X-axis and To of adjacent sub-time periods as the Y-axis. A preset dynamic change threshold curve is plotted in the coordinate system. The difference between the intervals where the dynamic risk change line is above the preset dynamic change threshold line is obtained, and the difference is assigned to the symbols X1, X2, and X3, etc., and then calculated according to the formula. Obtain the operational evaluation value Yo, where A1, A2, and X3 are the differences in intervals under different horizontal axes, Wo is the preset scaling factor, Wo > 0, and Yo is the operational evaluation value;

[0048] The treated water net value of the treatment device is obtained in each sub-time period. The treated water net value represents the number of times the value corresponding to the characteristic data of the treatment device exceeds the preset threshold in the sub-time period. The characteristic data represents the change value of impurity concentration and the change value of liquid volume of the treatment device in the sub-time period.

[0049] The impurity concentration change value is collected by multiple turbidity sensors fixedly installed in the fixed frame 1 and the fixed frame 2. The impurity concentration change value represents the difference between the initial turbidity of the wastewater and the turbidity of the wastewater after treatment by the fixed frame 1 and the fixed frame 2 during the operation of the treatment device. The larger the value, the better the filtration effect of the treatment device on the wastewater during the use of the device.

[0050] The liquid volume change value is collected by a flow meter fixedly installed inside the connecting pipe 501. The value represents the difference between the wastewater input and output within a sub-time period. The larger the value, the lower the wastewater treatment efficiency, and also the larger the amount of wastewater remaining in the treatment device within the sub-time period.

[0051] After collecting the impurity concentration change value Gi and the liquid volume change value Qi within the sub-time period, the formula is used. The treated water net value Vo is obtained, where a, b, and Li are preset proportional coefficients, a, b, and Li > 0, and Vo represents the treated water net value;

[0052] The operating evaluation values ​​of the treatment unit and the net value of the treated water were obtained for each sub-time period, and then processed using the formula. Then, the dynamic risk assessment coefficient Pi for each sub-time period of the equipment is obtained, where z1 and z2 are preset proportional coefficients, and z1 and z2 > 0. A rectangular coordinate system is established with the number of sub-time periods as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis. The dynamic risk assessment coefficient curve is plotted by plotting points.

[0053] Simultaneously, a preset dynamic risk assessment coefficient threshold curve is plotted in this coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value and risk difference value are then compared and analyzed with the preset risk angle range value and preset risk difference value entered and stored internally. The specific process is as follows:

[0054] If the risk angle range value is less than the preset risk angle range value and the risk difference value is less than the preset risk difference value, no signal will be generated. If the risk angle range value is greater than or equal to the preset angle range value and the risk difference value is greater than or equal to the preset risk difference value, a control signal will be generated.

[0055] The obtained control signal is then transmitted to the early warning control unit, and the analysis process of the processing device by the early warning control unit is as follows:

[0056] Upon receiving the control signals from the processing device for each sub-time period, immediately mark the risk indicator on the equipment display of the processing device corresponding to the control signal and flash the warning red light, while simultaneously activating the hydraulic cylinder, specifically:

[0057] When a control signal is generated, it indicates an abnormality in chamber 104 and chamber 3 106 or chamber 2 105 and chamber 4 107, such as blockage of filter plate 504. At this time, the hydraulic cylinder drives the connecting pipe 501 to move, causing a change in the working chamber to ensure smooth filtration of subsequent wastewater. At the same time, the two sets of working chambers do not interfere with each other, facilitating maintenance while ensuring continuous operation. Furthermore, by collecting data on internal and external interference factors during operation, corresponding control signals are obtained, and the operation of the treatment equipment is comprehensively and efficiently monitored during use. This involves comprehensively analyzing and comparing the collected data range with the preset data range to obtain relevant evaluation signals, which are then sent to the monitoring end for corresponding warnings. Simultaneously, the control components perform compensatory actions, effectively improving the working efficiency of the treatment device.

[0058] Example 2: Please refer to Figure 6 - Figure 8 As shown, the present invention also includes a filter plate assembly. Filter plates 504 are movably installed in cavities 104, 2105, 3106 and 4107. Sealing gaskets are fixedly installed on both sides of the filter plates 504. The sealing gaskets are in contact with the inner walls of the fixing frame 1 and the fixing frame 2. The sealing gaskets are made of materials that can undergo elastic deformation, such as rubber.

[0059] When the filter plate 504 is working, the sealing gasket layer fits against the inner wall to ensure sealing. When the filter plate 504 rotates, it is squeezed and deformed to avoid affecting the rotation of the filter plate 504. Rotating rods 505 are fixedly installed at both ends of the filter plate 504. The motor output end is fixedly connected to the rotating rod 505 on one side of the filter plate 504. The side of the filter plate 504 away from the motor is movably connected to the partition plate 103 through the rotating rod 505.

[0060] Both the inlet 101 and the outlet 102 are provided with sliding grooves. The baffle 502 is movably installed in the sliding grooves. A scraper 506 is fixedly installed on the baffle 502. The bottom of the scraper 506 is in contact with the bottom of the fixing frame 1 and the fixing frame 2. A slag discharge port 507 is provided on one side of the collection box 3. The scraper 506 is located at the slag discharge port 507. A sealing strip is fixedly installed at the slag discharge port 507. When the scraper 506 is located at the slag discharge port 507, the sealing strip is in contact with the scraper 506 to ensure sealing.

[0061] The motor is fixedly connected to the first fixed frame 1 and the second fixed frame 2. The filter plate 504 is movably installed inside the first fixed frame 1 and the second fixed frame 2. The cleaning pipe 108 and the collection box 3 are fixedly installed on both sides of the first fixed frame 1 and the second fixed frame 2. The cleaning pipe 108 is located above the collection box 3. The cleaning pipe 108 is fixedly installed in the first cavity 104, the second cavity 105, the third cavity 106 and the fourth cavity 107 for conveying clean water to the interior. The cleaning pipe 108 is located above the filter plate 504.

[0062] After the moving pipe is switched, the scraper 506 in cavity 104 and cavity 3 106 moves, and the collection box 3 is connected to the inside of cavity 104 and cavity 3 106. At this time, the motor is started to drive the filter plate 504 in cavity 104 and cavity 3 106 to rotate. Clean water is transported to cavity 104 and cavity 3 106 through cleaning pipe 108. Under the action of gravity, it hits the filter plate 504 and backwashes the filter holes. Under the flushing action, impurities fall down and flow into the collection box 3. Similarly, when the filter plate 504 in cavity 2 105 and cavity 4 107 needs to be cleaned, the above steps can be repeated. There is no need to disassemble the equipment, which greatly improves the processing efficiency.

[0063] Furthermore, when the moving tube moves towards cavity 2 105, the scraper 506 in cavity 1 104 and cavity 3 106 separates from the slag discharge port 507, while the scraper 506 in cavity 2 105 and cavity 4 107 gradually moves to the slag discharge port 507. During the movement of the scraper 506, the impurities in cavity 2 and cavity 4 107 that have not flowed into the collection box 3 are pushed into the collection box 3, thereby improving the cleaning effect.

[0064] In summary, by combining Embodiment 1 and Embodiment 2, data on internal and external interference factors during the use of the processing device are collected to obtain corresponding control signals. The operation of the processing device is comprehensively and efficiently monitored during use. This involves comprehensively analyzing and comparing the collected data range with the preset data range to obtain relevant evaluation signals. Based on this, corresponding warnings are issued to the monitoring end, thereby achieving accurate judgment and control of the usage of the processing device.

[0065] At the same time, the working efficiency of the treatment device is effectively improved by the coordinated use of the fixed frame 1, the fixed frame 2 and the connecting pipe 501 to clean the internal filter plate 504, which is more efficient and effectively improves the internal filtration efficiency. In addition, by the coordinated use of the motor and the connecting pipe 501 and by adjusting the position of the connecting pipe 501, the working chamber can be replaced to avoid affecting the continuity of the filtration work.

[0066] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0067] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fine treatment device for papermaking wastewater using multi-stage filtration technology, comprising a first fixed frame (1) and a second fixed frame (2), characterized in that, Collection boxes (3) are fixedly installed at both ends of the first (1) and the second (2) of the fixed frame. A control panel (4) is fixedly installed on the second (2) of the fixed frame. Adjustment components (5) are movably installed on both the first (1) and the second (2) of the fixed frame. The adjustment assembly (5) includes multiple connecting pipes (501), baffles (502) and connecting rods (503). The baffles (502) are fixedly connected to the connecting pipes (501). The connecting pipes (501) are fixedly connected to each other through the connecting rods (503). The first fixing frame (1) is fixedly connected to the second fixing frame (2) through the connecting pipes (501). Both the first fixing frame (1) and the second fixing frame (2) are fixedly installed with partition plates (103). The first fixing frame (1) is divided into cavity one (104) and cavity two (105) by a partition plate (103), and the second fixing frame (2) is divided into cavity three (106) and cavity four (107) by a partition plate (103). Filter plates (504) are movably installed in the first cavity (104), the second cavity (105), the third cavity (106) and the fourth cavity (107), and cleaning pipes (108) are fixedly installed on both sides of the first fixed frame (1) and the second fixed frame (2). The top of the first fixing frame (1) and the second fixing frame (2) are provided with liquid inlets (101), the bottom of the first fixing frame and the second fixing frame (2) are provided with liquid outlets (102), the liquid inlets (101) and the liquid outlets (102) are provided with connecting pipes (501), and the filter plate (504) is provided with sealing gaskets on both sides, and the sealing gaskets are in contact with the inner walls of the first fixing frame (1) and the second fixing frame (2). Rotating rods (505) are fixedly installed at both ends of the filter plate (504). Motors are fixedly installed on both sides of the first fixing frame (1) and the second fixing frame (2). The output end of the motor is fixedly connected to the rotating rod (505) on one side of the filter plate (504). The side of the filter plate (504) away from the motor is movably connected to the partition plate (103) through the rotating rod (505). Both the inlet (101) and outlet (102) are provided with grooves. The baffle (502) is movably installed in the grooves. A scraper (506) is fixedly installed on the baffle (502). The bottom of the scraper (506) is in contact with the bottom of the first fixing frame (1) and the second fixing frame (2). A slag discharge port (507) is provided on one side of the collection box (3). The scraper (506) is located at the slag discharge port (507). The control panel (4) includes a comprehensive data acquisition unit, a work evaluation unit, a risk assessment unit, and an early warning and control unit; The integrated data acquisition unit is used to collect data on internal and external interference factors of the treatment device. The internal interference factor data includes the operation assessment value and the net value of the treated water, while the external interference factor data includes the wastewater treatment risk value. The unit then sends the external and internal interference factor data to the operation assessment unit. After receiving data on external and internal interference factors, the work assessment unit performs a work assessment on the data and generates a risk signal based on the assessment results. The obtained risk signal is then sent to the risk assessment unit via a communication connection. After receiving the data from the work assessment unit, the risk assessment unit conducts a risk assessment and generates a control signal based on the assessment results. The control signal is then sent to the early warning control unit, which in turn controls the components to make corresponding action instructions.

2. The papermaking wastewater fine treatment device employing multi-stage filtration technology according to claim 1, characterized in that, A hydraulic cylinder is fixedly installed on the side of the fixed frame 2 (2) away from the control panel (4), and the output end of the hydraulic cylinder is fixedly connected to the connecting rod (503).

3. The papermaking wastewater fine treatment device employing multi-stage filtration technology according to claim 1, characterized in that, The risk assessment unit analyzes the processing device as follows: After obtaining the operating evaluation value and treated water net value of the treatment device in each sub-time period, the product value obtained after data normalization of the operating evaluation value and treated water net value is marked as the dynamic risk assessment coefficient, and then the dynamic risk assessment coefficient Pi in each sub-time period of the equipment is obtained. A rectangular coordinate system is established with the number of sub-time periods as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis. The dynamic risk assessment coefficient curve is plotted by plotting points. Simultaneously, a preset dynamic risk assessment coefficient threshold curve is plotted in this coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value and risk difference value are compared and analyzed with the preset risk angle range value and preset risk difference value recorded and stored internally, and a control signal is generated.

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