Industrial sewage filtering and purifying device

Abstract

The application relates to the technical field of industrial sewage treatment, and discloses an industrial sewage filtering and purifying device, which comprises a base and a main filter tank, the top of the base is fixedly installed with the bottom of the main filter tank, and the water inlet of the main filter tank is provided with a flow sensing adjusting mechanism. Compared with the prior art, the industrial sewage filtering and purifying device can automatically adjust the opening degree of a three-way flow divider according to the size of the water inflow by using the flow sensing plate, gear three, double-sided rack, gear four and other structures, realizes self-adaptive distribution of the water flow, effectively prevents the damage of flow impact on the subsequent filtering unit, and directly links the opening of the three-way flow divider and the starting of the crushing mechanism through a mechanical structure. When the flow exceeds the threshold value, the flow dividing and crushing actions can be triggered at the same time, the response delay is small, the flow and water quality impact can be responded in time, the subsequent filtering components are protected, and the device is more timely and perfect in operation and use.

Description

Technical Field

[0001] This invention relates to the field of industrial wastewater treatment technology, specifically to an industrial wastewater filtration and purification device. Background Technology

[0002] Industrial wastewater refers to wastewater containing pollutants generated during industrial production processes. Its composition is complex and variable, and it is characterized by high toxicity, high concentration, and difficulty in degradation. It mainly originates from industries such as chemical, pharmaceutical, printing and dyeing, metallurgy, electroplating, and food processing. Wastewater often contains heavy metals, toxic chemicals, organic pollutants, suspended solids, high concentrations of salt, and acidic and alkaline substances. Therefore, industrial wastewater needs to be filtered and purified to avoid direct discharge that could damage the aquatic ecosystem and harm human health.

[0003] In existing technologies, industrial wastewater filtration and purification is a key step in the treatment process. It typically employs a multi-stage treatment process that combines physical, chemical, and biological technologies. The purpose of filtration is to remove suspended particles, colloidal substances, and some dissolved pollutants from the wastewater, providing a guarantee for the core biochemical treatment unit or ensuring the quality of the final effluent. Common technologies include pretreatment such as bar screens and drum filters for solid-liquid separation, followed by advanced treatment technologies such as coagulation sedimentation, advanced oxidation, membrane filtration (ultrafiltration, reverse osmosis), and activated carbon adsorption to effectively remove specific pollutants such as heavy metals and recalcitrant organic matter.

[0004] When filtering and purifying industrial wastewater, a sudden increase in wastewater flow may occur. The system may be unable to handle the surge in flow exceeding thresholds, leading to the filter layer being impacted by high-speed water flow. This causes trapped pollutants to be washed away, resulting in a rapid deterioration of effluent quality, rendering it unsuitable for discharge or reuse. Furthermore, it may pollute and burden downstream precision treatment units. Simultaneously, the significantly shortened contact time between the water flow and the filter media or membrane reduces the efficiency of filtration, adsorption, and biochemical purification processes, increasing maintenance costs and energy consumption, and severely impacting the continuity and stability of the entire production process.

[0005] Furthermore, when diverting the flow exceeding the threshold, the impact force of the diverted flow cannot be used to break up the unretained pollutants. As a result, larger pollutants (such as fibers and plastics) that are not timely intercepted and crushed in the main filter tank will continue to pass through and enter the downstream, which not only exacerbates the risk of filter screen clogging and forces an increase in backwashing frequency, but may also entangle or damage precision equipment such as water pumps and membrane modules, significantly increasing maintenance costs and downtime risks. At the same time, the continuous circulation and accumulation of these pollutants in the structural equipment will eventually lead to a decline in the overall treatment effect and unstable effluent quality.

[0006] Therefore, we propose an industrial wastewater filtration and purification device to address this deficiency in existing technologies. Summary of the Invention

[0007] To address the shortcomings of existing technologies that cannot divert water flow exceeding the threshold and cannot utilize the diversion impact force to provide auxiliary treatment to the main filter tank, this invention provides an industrial wastewater filtration and purification device.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an industrial wastewater filtration and purification device, comprising a base and a main filtration tank, wherein the top of the base is fixedly installed with the bottom of the main filtration tank, and the inlet of the main filtration tank is provided with a flow sensing and regulating mechanism.

[0009] The power input end of the flow sensing and regulating mechanism is equipped with a diversion mechanism that converts the incoming water power into regulating force. The diversion mechanism is opened or closed according to the different incoming water volumes.

[0010] The power output end of the diversion mechanism is equipped with a churning mechanism that converts the power of the diverted water into rotational force. This churning mechanism performs different degrees of churning based on the magnitude of the impact force of the diverted water, and is used to break up larger impurities exceeding the flow rate threshold.

[0011] The flow sensing and regulating mechanism consists of a flow diversion mechanism and a pulverizing mechanism.

[0012] Furthermore, the diversion mechanism includes an inlet pipe, a rotating shaft, a flow sensing plate, a third gear, a double-sided rack, a three-way diversion valve, a valve stem, and a fourth gear. The outer surface of the inlet pipe is fixedly installed to the interior of the left side of the main filter tank. The outer surface of the rotating shaft is slidably connected to the inner wall of the inlet pipe. The interior of the flow sensing plate is fixedly installed to the outer surface of the rotating shaft. The interior of the third gear is fixedly installed to the outer surface of one end of the rotating shaft. The teeth on the lower surface of the double-sided rack mesh with the teeth on the outer surface of the third gear. The outer surface of the three-way diversion valve is fixedly installed to the interior of the inlet pipe. One end of the valve stem is rotatably connected to the valve body of the three-way diversion valve. The interior of the fourth gear is fixedly installed to the outer surface of the valve stem.

[0013] Furthermore, the agitation mechanism includes a connecting pipe, a diversion tank, a rotating plate, and an upper agitator. A support plate is fixedly installed on the upper surface of the base. The outer surface of the connecting pipe abuts against the top of the support plate. The outer surface of the diversion tank is fixedly installed to the interior of the base. The outer surface of the rotating plate shaft is rotatably connected to the inner wall of the diversion tank. The interior of the upper agitator is fixedly installed to the other outer surface of the rotating plate shaft, and the upper agitator is located inside the main filtration tank.

[0014] Furthermore, a limiting block is fixedly installed on the upper surface of the base, and the inner wall of the limiting block is slidably connected to the outer surface of the double-sided rack.

[0015] Furthermore, the outer surface of the flow sensing plate is in contact with the inner wall of the water inlet pipe, and the outer surface of the gear four meshes with the back of the limiting block after it has moved.

[0016] Furthermore, a diversion tank two is fixedly installed inside the rear side of the base, and a rotating plate two is rotatably connected inside the diversion tank two. A lower agitator blade is fixedly installed on the outer surface of the other side of the rotating plate two shaft, and the lower agitator blade is located inside the base. The position of the lower agitator blade is lower than that of the upper agitator blade. A connecting pipe two is provided at the top of the rotating plate two, and the water outlet position of the connecting pipe two is aligned with the blades of the rotating plate two.

[0017] Furthermore, one outlet of the three-way diverter valve is fixedly installed on the outer surface of the first connecting pipe, and the other outlet of the three-way diverter valve is fixedly installed on the outer surface of the second connecting pipe.

[0018] Furthermore, an outlet is provided on the right side inside the main filtration tank, a coarse filter screen is fixedly installed on the left side inside the main filtration tank, and a filter drum is rotatably installed on the right side inside the main filtration tank.

[0019] Furthermore, a U-shaped frame is fixedly installed on the top of the main filter tank, a servo motor is installed on the top of the U-shaped frame, a gear one is fixedly installed on the outer surface of the output shaft of the servo motor, a gear two meshes with the outer surface of the gear one, a connecting rod is fixedly installed inside the gear two, and one end of the connecting rod is fixedly installed with one end of the internal shaft of the filter drum.

[0020] Compared with the prior art, the present invention provides an industrial wastewater filtration and purification device, which has the following beneficial effects:

[0021] 1. This industrial wastewater filtration and purification device, through the use of a flow sensing plate and structures such as gear three, double-sided rack and pinion, and gear four, can automatically adjust the opening of the three-way diverter valve according to the size of the influent flow, realizing adaptive distribution of water flow. This effectively prevents damage to subsequent filtration units caused by flow shocks. Furthermore, the opening of the three-way diverter valve and the start of the pulverizing mechanism are directly linked through the mechanical structure. When the flow exceeds the threshold, the diversion and pulverizing actions can be triggered simultaneously with a small response delay. This allows for timely response to the impact of flow and water quality, protecting subsequent filtration components and facilitating more timely and efficient operation in real-world applications.

[0022] 2. This industrial wastewater filtration and purification device utilizes two sets of structures—an upper and a lower agitator—to perform rotary cutting at different depths within the main filtration tank, forming a dual-stage crushing zone. This effectively crushes impurities in different suspended states, significantly improving the crushing effect and processing capacity for large solid pollutants. Furthermore, by utilizing the impact force of the diverted wastewater itself to drive rotating plates one and two, the upper and lower agitators rotate at high speed, converting fluid kinetic energy into mechanical energy without the need for an external motor, thus reducing the device's energy consumption and operating costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an industrial wastewater filtration and purification device proposed in this invention.

[0024] Figure 2 This invention proposes an industrial wastewater filtration and purification device. Figure 1 A schematic diagram of the right-side view structure;

[0025] Figure 3 This invention proposes an industrial wastewater filtration and purification device. Figure 1 A schematic diagram of the left-side view structure;

[0026] Figure 4 This invention proposes an industrial wastewater filtration and purification device. Figure 3 Enlarged schematic diagram of the structure at point A;

[0027] Figure 5 This invention proposes an industrial wastewater filtration and purification device. Figure 1 A schematic diagram of a partial structure;

[0028] Figure 6 This invention proposes an industrial wastewater filtration and purification device. Figure 5 Enlarged schematic diagram of the structure at point B;

[0029] Figure 7 This invention proposes an industrial wastewater filtration and purification device. Figure 5 A top-view structural diagram.

[0030] In the diagram: 1. Base; 2. Main filter tank; 3. Inlet pipe; 4. Outlet; 5. Coarse filter screen; 6. Filter drum; 7. U-shaped frame; 8. Servo motor; 9. Gear 1; 10. Gear 2; 11. Connecting rod; 12. Rotating shaft; 13. Flow sensing plate; 14. Gear 3; 15. Double-sided rack; 16. Three-way diverter valve; 17. Valve stem; 18. Gear 4; 19. Limiting block; 20. Support plate; 21. Connecting pipe 1; 22. Diversion tank 1; 23. Rotating plate 1; 24. Upper agitator; 25. Connecting pipe 2; 26. Diversion tank 2; 27. Rotating plate 2; 28. Lower agitator. Detailed Implementation

[0031] 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.

[0032] Please see Figure 5 and Figure 6 An industrial wastewater filtration and purification device includes a base 1 and a main filter tank 2. The top of the base 1 is fixedly installed to the bottom of the main filter tank 2. The inlet of the main filter tank 2 is equipped with a flow sensing and regulating mechanism.

[0033] The flow sensing and regulating mechanism is equipped with a diversion mechanism at its power input end, which converts the incoming water power into regulating force. The diversion mechanism opens or closes based on the different incoming water volumes.

[0034] The power output end of the diversion mechanism is equipped with a churning mechanism that converts the power of the diverted water into rotational force. This churning mechanism performs different degrees of churning based on the magnitude of the impact force of the diverted water, and is used to break up larger impurities exceeding the flow rate threshold.

[0035] The flow sensing and regulating mechanism consists of a diversion mechanism and a churning mechanism. The diversion mechanism includes an inlet pipe 3, a rotating shaft 12, a flow sensing plate 13, a gear 14, a double-sided rack 15, a three-way diversion valve 16, a valve stem 17, and a gear 18. The outer surface of the inlet pipe 3 is fixedly installed to the inside of the left side of the main filter tank 2. The outer surface of the rotating shaft 12 is slidably connected to the inner wall of the inlet pipe 3. The inside of the flow sensing plate 13 is fixedly installed to the outer surface of the rotating shaft 12. The inside of the gear 14 is fixedly installed to the outer surface of one end of the rotating shaft 12. The double-sided rack 16... The teeth on the lower surface of the three gears 14 mesh with the teeth on the outer surface of the three-way diverter valve 16. The outer surface of the three-way diverter valve 16 is fixedly installed inside the inlet pipe 3. One end of the valve stem 17 is rotatably connected to the valve body of the three-way diverter valve 16. The inside of the four gears 18 is fixedly installed to the outer surface of the valve stem 17. The upper surface of the base 1 is fixedly installed with a limit block 19. The inner wall of the limit block 19 is slidably connected to the outer surface of the double-sided rack 15. The outer surface of the flow sensing plate 13 is in contact with the inner wall of the inlet pipe 3. The outer surface of the four gears 18 meshes with the back of the limit block 19 after it has moved.

[0036] Specifically, the flow sensing and regulating mechanism can automatically adjust according to different influent volumes. When the influent volume changes, the flow sensing plate 13 in the diversion mechanism will rotate around the rotating shaft 12 under the impact of the water flow, driving the gear 3 14 to rotate, which in turn causes the double-sided rack 15 to move. After the double-sided rack 15 moves a certain distance, it meshes with the gear 4 18, driving the valve stem 17 to rotate, thereby controlling the opening or closing of the three-way diversion valve 16. This achieves automatic diversion and regulation according to the influent flow, ensuring that the amount of water entering the main filter tank 2 is stable within a suitable range, improving the filtration and purification effect and the stability of the device operation. From flow sensing to diversion and regulation, and then to crushing impurities, the entire process does not require much manual intervention. It can be completed automatically by relying on the power of the water flow itself and the mechanical transmission between the mechanisms, which greatly improves the efficiency of industrial wastewater filtration and purification, reduces the intensity of manual labor, and is suitable for large-scale continuous industrial wastewater treatment scenarios.

[0037] Please see Figure 7 The pulverizing mechanism includes a connecting pipe 21, a diversion tank 22, a rotating plate 23, and an upper pulverizing blade 24. A support plate 20 is fixedly installed on the upper surface of the base 1. The outer surface of the connecting pipe 21 abuts against the top of the support plate 20. The outer surface of the diversion tank 22 is fixedly installed inside the base 1. The outer surface of the rotating plate 23 shaft is rotatably connected to the inner wall of the diversion tank 22. The interior of the upper pulverizing blade 24 is fixedly installed on the other side of the outer surface of the rotating plate 23 shaft, and the upper pulverizing blade 24 is located inside the main filter tank 2. A diversion tank is fixedly installed inside the rear side of the base 1. Inside the diversion tank 26, a rotating plate 27 is rotatably connected. A lower agitator 28 is fixedly installed on the outer surface of the other side of the shaft of the rotating plate 27. The lower agitator 28 is located inside the base 1 and its position is lower than that of the upper agitator 24. A connecting pipe 25 is provided at the top of the rotating plate 27, and the outlet of the connecting pipe 25 is aligned with the blades of the rotating plate 27. One outlet of the three-way diversion valve 16 is fixedly installed on the outer surface of the connecting pipe 21, and the other outlet of the three-way diversion valve 16 is fixedly installed on the outer surface of the connecting pipe 25.

[0038] Specifically, when the three-way diversion valve 16 opens, a portion of the water flows through the connecting pipe 21 into the diversion tank 22, impacting the rotating plate 23 and driving the upper agitator 24 to rotate. The other portion of the water flows through the connecting pipe 25 into the diversion tank 26, impacting the rotating plate 27 and driving the lower agitator 28 to rotate. The upper agitator 24 and the lower agitator 28, located at different positions inside the main filter tank 2 and the base 1, respectively, agitate larger impurities in the water flow. In particular, the lower agitator 28, positioned lower than the upper agitator 24, can effectively treat impurities of different depths and particle sizes, greatly improving the efficiency and thoroughness of impurity agitation, preventing large particles from clogging the filtration system, and ensuring the stable operation of the industrial wastewater filtration and purification device.

[0039] The upper agitator 24 and the lower agitator 28 are arranged in layers. The upper agitator 24 breaks up the impurities that initially enter the main filter tank 2, while the lower agitator 28 further breaks up the impurities that may have settled or remained after the initial treatment inside the base 1. The layered treatment method can be targeted according to the characteristics of impurities in different positions and states, which optimizes the filtration and purification process and improves the quality and effect of sewage purification.

[0040] Please see Figure 3 and Figure 4 A U-shaped frame 7 is fixedly installed on the top of the main filter tank 2. A servo motor 8 is installed on the top of the U-shaped frame 7. A gear 9 is fixedly installed on the outer surface of the output shaft of the servo motor 8. A gear 10 meshes with the outer surface of the gear 9. A connecting rod 11 is fixedly installed inside the gear 10. One end of the connecting rod 11 is fixedly installed with one end of the internal shaft of the filter drum 6.

[0041] Specifically, the filter drum 6, driven by the servo motor 8, can rotate continuously. This allows the wastewater to constantly change its contact position and angle with the filter screen as it passes through the drum 6. This ensures that impurities in the wastewater are more evenly distributed on the filter screen, preventing localized impurity accumulation that could reduce filtration efficiency. It also facilitates the timely removal of filtered impurities from the filter screen during rotation, preventing clogging and thus improving the overall filtration effect and efficiency of the industrial wastewater filtration and purification device.

[0042] The servo motor 8 can be connected to the control system to achieve automated control. Through preset programs, the rotation speed and operating mode of the filter drum 6 can be automatically adjusted according to different sewage flow, impurity content and other working conditions, so that the device can better adapt to various complex industrial sewage filtration scenarios, further improve the automation level and intelligence of the device, reduce manual intervention and reduce labor intensity.

[0043] Please see Figure 1 , Figure 2 and Figure 3 The main filter tank 2 has an outlet 4 on the right side, a coarse filter screen 5 fixedly installed on the left side, and a filter drum 6 rotatably installed on the right side.

[0044] Specifically, a coarse filter screen 5 is fixedly installed on the left side inside the main filter tank 2. When industrial wastewater enters the main filter tank 2 from the inlet, the coarse filter screen 5 performs preliminary filtration, effectively intercepting larger solid impurities such as branches, plastic pieces, and large particles of sand. This preliminary filtration prevents these large particles from entering subsequent filtration stages, avoiding clogging and damage to fine filtration components such as the filter drum 6, extending the service life of the entire filtration system and reducing maintenance costs. The fine filter screen on the filter drum 6 further intercepts tiny particles, suspended solids, colloids, and other impurities in the wastewater, achieving fine filtration. Through this multi-stage filtration method, the purification level of industrial wastewater can be significantly improved, enabling the treated water to meet higher standards and satisfy different industrial water needs or discharge requirements.

[0045] Wastewater enters from the left, passes through the coarse filter screen 5 and the rotating filter drum 6 in sequence, and then flows out from the outlet 4 on the right. The water flow path is clear and smooth, reducing dead corners and turbulence in the main filter tank 2.

[0046] It should be added that when the three-way diversion valve 16 is opened, excess sewage enters the diversion tank 1 22 and diversion tank 2 26 through the connecting pipe 1 21 and the connecting pipe 2 25 respectively. The high-speed water flow precisely impacts the blades of the rotating plate 1 23 and the rotating plate 2 27, driving them to rotate at high speed, and directly driving the upper agitator 24 and the lower agitator 28 to rotate synchronously, converting the kinetic energy of the diverted water into mechanical crushing force without the need for external power drive. The outlet position of the connecting pipe 2 25 and the blades of the rotating plate 2 27 are precisely aligned to ensure that the hydraulic energy is maximized.

[0047] Other details include the upper agitator blade 24 being located in the upper part of the main filter tank 2, while the lower agitator blade 28 is located inside the base 1 at a lower position. This staggered arrangement allows the pulverization range to cover different depths of the flow field within the tank. As wastewater flows through, large particles undergo dual-stage cutting and pulverization, effectively avoiding dead zones. Simultaneously, the rotation speeds of the first rotating plate 23 and the second rotating plate 27 are automatically adjusted according to the impact force of the diversion flow.

[0048] Working principle and usage steps: Sewage flows in through the inlet pipe 3, and the water flow impacts the flow sensing plate 13. When the inlet flow rate increases sharply, the increased water flow impact force drives the flow sensing plate 13 to rotate the rotating shaft 12 and gear 14, which in turn pushes the double-sided rack 15 to slide within the limiting block 19. The double-sided rack 15 meshes with gear 18, driving the valve stem 17 of the three-way diversion valve 16 to rotate, thereby opening the valve and diverting excess wastewater through connecting pipe 21 and connecting pipe 25 into diversion tank 22 and diversion tank 26 respectively. The water flow impacts the rotating plates 23 and 27, causing them to rotate at high speed. This, in conjunction with the upper and lower agitator blades 24 and 28, causes the plates to rotate and cut at different depths within the main filter tank 2. This process thoroughly crushes large solid pollutants that are brought in with a large flow rate. At the same time, the normal flow wastewater that is not diverted flows through the coarse filter screen 5 along with the wastewater that has been treated by the agitation process to remove larger particles. Finally, the servo motor 8 drives the filter drum 6 through gears 9, 10, and 11 for precision filtration. The purified water is then discharged from the outlet 4.

[0049] This application includes a PLC controller, a control panel, and a power supply battery, and belongs to the prior art for equipment control and operation.

[0050] Beneficial effects: Through the structure composed of flow sensing plate 13, gear three 14, double-sided rack 15, gear four 18, etc., intelligent sensing and adaptive adjustment of the influent volume are realized. When the flow exceeds the limit, the three-way diversion valve 16 is automatically driven to open the diversion. At the same time, the kinetic energy of the diverted water flow impacts rotating plate one 23 and rotating plate two 27, respectively driving the upper agitator 24 and the lower agitator 28 to form a three-dimensional crushing network in the main filter tank 2, realizing the effective crushing of large particles of impurities. Finally, the pre-treated water flows through the coarse filter screen 5 and the filter drum 6 to complete fine filtration, realizing the synergistic treatment of energy self-supply, flow self-adaptation and impurity self-crushing.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An industrial wastewater filtration and purification device, characterized in that, It includes a base (1) and a main filter tank (2). The top of the base (1) is fixedly installed to the bottom of the main filter tank (2). The inlet of the main filter tank (2) is equipped with a flow sensing and regulating mechanism. The power input end of the flow sensing and regulating mechanism is equipped with a diversion mechanism that converts the incoming water power into regulating force. The diversion mechanism is opened or closed according to the different incoming water volumes. The power output end of the diversion mechanism is equipped with a churning mechanism that converts the power of the diverted water into rotational force. This churning mechanism performs different degrees of churning operations depending on the magnitude of the impact force of the diverted water. The flow sensing and regulating mechanism consists of a flow diversion mechanism and a pulverizing mechanism; The diversion mechanism includes an inlet pipe (3), a rotating shaft (12), a flow sensing plate (13), a gear three (14), a double-sided rack (15), a three-way diversion valve (16), a valve stem (17), and a gear four (18). The outer surface of the inlet pipe (3) is fixedly installed inside the left side of the main filter tank (2). The outer surface of the rotating shaft (12) is slidably connected to the inner wall of the inlet pipe (3). The interior of the flow sensing plate (13) is fixedly installed to the outer surface of the rotating shaft (12). The interior of the gear three (14) is fixedly installed to the outer surface of one end of the rotating shaft (12). The teeth on the lower surface of the double-sided rack (15) mesh with the teeth on the outer surface of the gear three (14). The outer surface of the three-way diversion valve (16) is fixedly installed to the interior of the inlet pipe (3). One end of the valve stem (17) is rotatably connected to the valve body of the three-way diversion valve (16). The interior of the gear four (18) is fixedly installed to the outer surface of the valve stem (17). The pulverizing mechanism includes a connecting pipe (21), a diversion pool (22), a rotating plate (23), and an upper pulverizing blade (24). A support plate (20) is fixedly installed on the upper surface of the base (1). The outer surface of the connecting pipe (21) abuts against the top of the support plate (20). The outer surface of the diversion pool (22) is fixedly installed inside the base (1). The outer surface of the shaft of the rotating plate (23) is rotatably connected to the inner wall of the diversion pool (22). The interior of the upper pulverizing blade (24) is fixedly installed on the other side of the outer surface of the shaft of the rotating plate (23). The upper pulverizing blade (24) is located inside the main filter pool (2).

2. The industrial wastewater filtration and purification device according to claim 1, characterized in that: A limiting block (19) is fixedly installed on the upper surface of the base (1), and the inner wall of the limiting block (19) is slidably connected to the outer surface of the double-sided rack (15).

3. The industrial wastewater filtration and purification device according to claim 1, characterized in that: The outer surface of the flow sensing plate (13) is in contact with the inner wall of the water inlet pipe (3), and the outer surface of the gear four (18) meshes with the back of the limiting block (19) after it has moved.

4. The industrial wastewater filtration and purification device according to claim 1, characterized in that: A diversion pool two (26) is fixedly installed inside the rear side of the base (1). A rotating plate two (27) is rotatably connected inside the diversion pool two (26). A lower shredder (28) is fixedly installed on the outer surface of the other side of the shaft of the rotating plate two (27). The lower shredder (28) is located inside the base (1). The position of the lower shredder (28) is lower than the position of the upper shredder (24). A connecting pipe two (25) is provided on the top of the rotating plate two (27). The water outlet position of the connecting pipe two (25) is aligned with the blade of the rotating plate two (27).

5. The industrial wastewater filtration and purification device according to claim 1, characterized in that: One outlet of the three-way diverter valve (16) is fixedly installed on the outer surface of the first connecting pipe (21), and the other outlet of the three-way diverter valve (16) is fixedly installed on the outer surface of the second connecting pipe (25).

6. The industrial wastewater filtration and purification device according to claim 1, characterized in that: The main filter tank (2) has an outlet (4) on the right side inside, a coarse filter screen (5) is fixedly installed on the left side inside, and a filter drum (6) is rotatably installed on the right side inside.

7. The industrial wastewater filtration and purification device according to claim 1, characterized in that: A U-shaped frame (7) is fixedly installed on the top of the main filter tank (2). A servo motor (8) is installed on the top of the U-shaped frame (7). A gear (9) is fixedly installed on the outer surface of the output shaft of the servo motor (8). A gear (10) meshes with the outer surface of the gear (9). A connecting rod (11) is fixedly installed inside the gear (10). One end of the connecting rod (11) is fixedly installed with one end of the internal shaft of the filter drum (6).

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