Zero-discharge electroplating wastewater treatment equipment with multi-stage utilization function

Abstract

The invention discloses zero-discharge electroplating wastewater treatment equipment with a multi-stage utilization function, and relates to the technical field of wastewater treatment.The electroplating wastewater treatment equipment comprises a wastewater treatment main body, and the wastewater treatment main body is sequentially provided with an alkalization unit, an electrolysis unit, a precipitation unit, a filtering unit and a storage unit; the alkalization unit is connected with the electrolysis unit, the precipitation unit is connected with the filtering unit through a liquid conveying piece, the filtering unit is connected with the storage unit through a liquid conveying piece, and when electroplating wastewater is treated, the wastewater sequentially passes through the alkalization unit, the electrolysis unit, the precipitation unit and the filtering unit to be subjected to multi-stage purification treatment, and then the recycled wastewater can be stored through the storage unit; meanwhile, through the reciprocating movement of the liquid discharge rectangular pipe, the liquid discharge rectangular pipe can uniformly distribute the wastewater on the filter screen, the filter effect and the filter efficiency of the filter screen on the wastewater can be improved, and the filter effect of the filter screen on the wastewater can be further guaranteed through the anti-blocking assembly and the washing assembly.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a zero-discharge electroplating wastewater treatment device with multi-stage utilization function. Background Technology

[0002] Electroplating is a surface treatment technology that deposits metal onto the surface of a workpiece through electrolysis, forming a metallic coating. The wastewater generated during electroplating is treated in current practices. Electroplating wastewater treatment refers to the treatment of wastewater or waste liquid discharged from electroplating production. Wastewater and waste liquid discharged from electroplating plants contain large amounts of metal ions such as chromium, cadmium, and nickel, as well as cyanide, acids, and alkalis, and often contain organic additives. Some metal ions exist as simple cations, some as anions, and some as complex complex ions. Commonly used chemical methods for electroplating wastewater treatment include neutralization precipitation, neutralization coagulation precipitation, oxidation, reduction, barium salt methods, and ferrite methods.

[0003] Existing electroplating wastewater treatment equipment lacks multi-stage treatment capabilities, resulting in unsatisfactory wastewater purification effects. Furthermore, its filtration effect and efficiency during wastewater recycling are low, leading to poor treatment outcomes for electroplating wastewater. Summary of the Invention

[0004] The purpose of this invention is to provide a zero-discharge electroplating wastewater treatment device with multi-stage utilization function to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: the electroplating wastewater treatment equipment includes a wastewater treatment body, on which an alkalization unit, an electrolysis unit, a precipitation unit, a filtration unit and a storage unit are sequentially arranged; the precipitation unit and the filtration unit are connected through a liquid conveying component, and the filtration unit and the storage unit are connected through a liquid conveying component. The filtration unit includes a filtration tank and a filter screen; The filter tank is equipped with a filter screen, and the filter tank is equipped with a liquid equalization component, a filtration control component, an anti-clogging component, and a flushing component. The liquid equalization assembly includes a fixed rod, a slider, a discharge tube, a reciprocating screw, a drive motor, a slide block, and a telescopic liquid tube; The filter tank is symmetrically equipped with fixed rods, and a slider is slidably mounted on the fixed rod. A drain tube is mounted on the slider. A reciprocating screw is rotatably mounted in the filter tank, and a drive motor is mounted on the filter tank. The drive motor drives the reciprocating screw to rotate. A slide block is slidably mounted on the reciprocating screw. The slide block is connected to the drain tube, and the input end of the drain tube is connected to the infusion device.

[0006] When treating electroplating wastewater, the wastewater undergoes multi-stage purification treatment through an alkalization unit, an electrolysis unit, a sedimentation unit, and a filtration unit. The recycled wastewater can then be stored in a storage unit. Simultaneously, when wastewater from the sedimentation unit enters the filtration tank via a delivery system, the sliding block can slide on a fixed rod. By activating the drive motor, the reciprocating screw can drive the discharge tube to move reciprocally through the slide block. This facilitates the even distribution of wastewater onto the filter screen, improving the filtration effect and efficiency. Furthermore, anti-clogging and flushing components further ensure the filtration effect of the filter screen.

[0007] As a preferred technical solution, the filter control assembly includes a pad, a rotating shaft, a rotating plate, a fixing sleeve, a magnetic plate, a conductive column, a current sensor, and a control component; A pad is coaxially mounted on the end of the reciprocating screw furthest from the drive motor. A rotating shaft is coaxially mounted on the pad. Multiple rotating plates are evenly mounted on the side wall of the rotating shaft. A fixed sleeve is mounted on the filter tank. The rotating shaft and rotating plates are located inside the fixed sleeve. Magnetic plates are symmetrically mounted on the fixed sleeve via control components. A conductive post is rotatably mounted on the fixed sleeve. One end of the conductive post is concentrically connected to the rotating shaft, and a current sensor is mounted on the other end of the conductive post. The current sensor is electrically connected to the anti-clogging component and the flushing component. When the reciprocating screw rotates, it can drive the rotating shaft to rotate synchronously through the pad. During the rotation, the rotating shaft can drive the rotating plates to cut the magnetic lines of force between the two magnetic plates. The resulting induced current can enter the current sensor through the conductive post, allowing the current sensor to control the operation of the anti-clogging component and the flushing component according to the intensity of the induced current.

[0008] As a preferred technical solution, the control component includes a slide rail, a moving block, and an electric telescopic rod; The fixed sleeve is symmetrically provided with slide rails, and each slide rail has a movable block slidably installed inside. A magnetic plate is mounted on each movable block. Electric telescopic rods are symmetrically installed on the fixed sleeve, and each electric telescopic rod is connected to a movable block on the same side. Multiple pressure sensors are installed on the filter screen, and these pressure sensors are electrically connected to the electric telescopic rods. When impurities clog the surface of the filter screen, the pressure sensors can control the electric telescopic rods to extend a corresponding distance based on the intensity of the clogging. This allows the electric telescopic rods to drive the movable blocks to move synchronously within the slide rails, thereby adjusting the overlap area between the magnetic plate and the rotating plate, and consequently increasing the intensity of the induced current.

[0009] As a preferred technical solution, the anti-clogging component includes a suction pipe, a collection box, an air pump, a delivery pipe, a telescopic air pipe, and a suction pipe; The bottom of the drain pipe is symmetrically equipped with a shifting component, and a suction pipe is installed on the shifting component. The filter tank is equipped with a collection box and an air pump. The collection box is connected to the output end of the air pump through a delivery pipe. An air suction pipe is installed on the input end of the air pump. A telescopic air pipe is installed on the output end of the suction pipe. The telescopic air pipe is connected to the suction pipe through an air regulating component. When the drain pipe sprays wastewater, the air pump is started, and the suction force of the suction pipe can be controlled by the air regulating component according to the induced current intensity detected by the current sensor. At the same time, during the movement of the drain pipe, the shifting component can drive the suction pipe to reciprocate, so that the suction pipe can fully adsorb impurities on the upper surface of the filter screen, which can prevent impurities from clogging the filter screen.

[0010] As a preferred technical solution, the switching component includes a slide rail, a movable seat, and a linkage rod; The bottom of the drain tube is symmetrically mounted with slide rails, a movable seat is slidably mounted on the slide rails, a linkage rod is mounted on the movable seat, a suction tube is mounted at the bottom of the linkage rod, the suction tube is in contact with the upper surface of the filter screen, and a direction sensor is mounted on the drain tube, the direction sensor is electrically connected to the slide rails; When the discharge tube moves, the slide rail drives the suction tube to be behind the discharge tube. When the discharge tube moves, the direction sensor detects the direction of movement of the discharge tube. At this time, the direction sensor can control the slide rail to run, so that the moving seat can drive the suction tube to move in the opposite direction of the discharge tube through the linkage rod. Thus, the suction tube can be automatically repositioned according to the reciprocating movement of the discharge tube, which is beneficial to ensure that the suction tube is always in the position behind the discharge tube.

[0011] As a preferred technical solution, the gas regulating component includes a solenoid valve, a power supply, and a rheostat; The telescopic air pipe and the suction pipe are connected by a solenoid valve. A power supply and a rheostat are installed on the filter tank. The power supply, rheostat, and solenoid valve are connected in sequence by wires. The rheostat and the current sensor are under negative feedback control. When the current sensor detects the intensity of the induced current, it can control the resistance of the rheostat to decrease accordingly, thereby increasing the power supply to the solenoid valve. This allows the valve opening of the solenoid valve to increase accordingly, which in turn improves the adsorption force of the suction pipe on impurities. The suction pipe can automatically increase its adsorption strength according to the intensity of impurity blockage on the filter screen, which helps to ensure the filtration effect and efficiency of the filter screen for wastewater.

[0012] As a preferred technical solution, the flushing assembly includes a branch pipe, a nozzle, a connecting rod, a fixing plate, a rotating column, a micro servo motor, and an angle sensor; Multiple branch pipes, each a flexible hose, are installed on the drain pipe. Spray nozzles are mounted on each branch pipe, and adjacent nozzles are connected by connecting rods. A fixed plate is symmetrically installed at the bottom of the drain pipe, and a rotating column is rotatably mounted on the fixed plate. The rotating column is connected to the nozzle. A micro servo motor is mounted on the fixed plate, driving one rotating column to rotate. An angle sensor is installed at the end of the other rotating column furthest from the nozzle. A current sensor is electrically connected to the micro servo motor and the angle sensor. The current sensor can control the operation of the micro servo motor based on changes in the intensity of the induced current, allowing the micro servo motor to drive multiple nozzles to rotate at corresponding angles via the rotating column. Simultaneously, the angle sensor can control the micro servo motor to stop when it detects the corresponding rotation angle of the rotating column. This facilitates automatic adjustment of the nozzle tilt angle based on the clogging intensity of impurities on the filter screen, thereby improving the adsorption effect of the suction pipe on impurities while spraying wastewater.

[0013] As a preferred technical solution, the micro servo motor is electrically connected to the direction sensor, ensuring that the nozzle's tilt direction always faces the movement direction of the drainage pipe. Initially, the nozzle is vertically downward, and the maximum angle at which the nozzle transitions from a vertical to a tilted state is 45°. The direction sensor controls the micro servo motor's rotation to be in the same direction as the drainage pipe's movement, and automatically controls the nozzle's tilt direction to switch when the drainage pipe's movement direction changes.

[0014] As a preferred technical solution, the infusion device includes a water pump, a suction tube, and an infusion tube; The filter tank is equipped with two sets of water pumps. The input end of one set of water pumps is connected to the sedimentation unit through a suction pipe, and the output end of the water pump is connected to the telescopic liquid pipe through a delivery pipe. The input end of the other set of water pumps is connected to the filter tank through a suction pipe, and the output end of the water pump is connected to the storage unit through a delivery pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are: When treating electroplating wastewater, this application sequentially passes through an alkalization unit, an electrolysis unit, a sedimentation unit, and a filtration unit for multi-stage purification. The recycled wastewater can then be stored in a storage unit. By starting a drive motor, the drain pipe is moved back and forth, which helps to evenly distribute the wastewater onto the filter screen, thereby improving the filtration effect and efficiency of the filter screen. Furthermore, the anti-clogging component and flushing component further ensure the filtration effect of the filter screen on the wastewater.

[0016] In this application, the overlap area between the magnetic plate and the rotating plate can be adjusted by a pressure sensor according to the intensity of impurities clogging the filter screen, thereby increasing the intensity of the induced current. This allows the current sensor to control the operation of the anti-clogging component and the flushing component based on the intensity of the induced current.

[0017] This application can automatically increase the adsorption intensity of the suction tube according to the clogging intensity of impurities on the filter screen, which helps to ensure the filtration effect and efficiency of the filter screen for wastewater.

[0018] This application can automatically adjust the tilt angle of the nozzle according to the clogging intensity of impurities on the surface of the filter screen, which is beneficial for the nozzle to scour the surface of the filter screen while spraying wastewater, thereby improving the adsorption effect of the suction pipe on impurities. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the external structure of the present invention; Figure 3 This is a schematic diagram of the first cross-sectional structure of the filter unit of the present invention; Figure 4 This is a schematic diagram of the second cross-sectional structure of the filter unit of the present invention; Figure 5 This is a schematic diagram of the third cross-sectional structure of the filter unit of the present invention; Figure 6 yes Figure 4 Enlarged structural diagram at point A in the diagram; Figure 7 yes Figure 5 Enlarged structural diagram at point B in the diagram; Figure 8 yes Figure 5 Enlarged structural diagram at point C; Figure 9 yes Figure 3 A magnified structural diagram at point D in the diagram.

[0020] In the diagram: 1. Wastewater treatment main body; 2. Alkalization unit; 3. Electrolysis unit; 4. Sedimentation unit; 5. Filtration unit; 501. Filter tank; 502. Filter screen; 6. Storage unit; 7. Liquid delivery components; 701. Water pump; 702. Suction pipe; 703. Delivery pipe; 8. Liquid equalization assembly; 802. Fixed rod; 803. Slider; 804. Drainage pipe; 805. Reciprocating screw; 806. Drive motor; 807. Slide seat; 808. Telescopic liquid pipe; 9. Filtration control assembly; 901. Pad; 902. Rotating shaft; 903. Rotating plate; 904. Fixed sleeve; 905. Magnetic plate; 906. Conductive column; 907. Current. Sensor; 908, Slide rail; 909, Moving block; 910, Electric telescopic rod; 10, Anti-clogging component; 1001, Slide rail; 1002, Moving seat; 1003, Linkage rod; 1004, Suction pipe; 1005, Collection box; 1006, Air pump; 1007, Delivery pipe; 1008, Telescopic air pipe; 1009, Suction pipe; 1010, Solenoid valve; 1011, Power supply; 1012, Rheostat; 11, Flushing component; 1101, Branch pipe; 1102, Nozzle; 1103, Connecting rod; 1104, Fixing plate; 1105, Rotating column; 1106, Miniature servo motor; 1107, Angle sensor. Detailed Implementation

[0021] 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.

[0022] Example: Figures 1-9 As shown, the present invention provides a technical solution for a zero-emission electroplating wastewater treatment device with multi-stage utilization function. The electroplating wastewater treatment device includes a wastewater treatment body 1, on which an alkalization unit 2, an electrolysis unit 3, a precipitation unit 4, a filtration unit 5 and a storage unit 6 are sequentially arranged. The precipitation unit 4 and the filtration unit 5 are connected by a liquid conveying component 7, and the filtration unit 5 and the storage unit 6 are connected by a liquid conveying component 7. The alkalization unit 2, electrolysis unit 3, precipitation unit 4, and storage unit 6 in this application are all prior art, therefore, they will not be described in detail in the specification. Filtration unit 5 includes a filter tank 501 and a filter screen 502; A filter screen 502 is installed inside the filter tank 501, and a liquid equalization component 8, a filtration control component 9, an anti-clogging component 10 and a flushing component 11 are provided on the filter tank 501. The liquid equalization assembly 8 includes a fixed rod 802, a slider 803, a discharge tube 804, a reciprocating screw 805, a drive motor 806, a slide block 807, and a telescopic liquid tube 808; A fixed rod 802 is symmetrically installed inside the filter tank 501. A slider 803 is slidably installed on the fixed rod 802. A drain pipe 804 is installed on the slider 803. A reciprocating screw 805 is rotatably installed inside the filter tank 501. A drive motor 806 is installed on the filter tank 501. The drive motor 806 drives the reciprocating screw 805 to rotate. A slide block 807 is slidably installed on the reciprocating screw 805. The slide block 807 is connected to the drain pipe 804. The input end of the drain pipe 804 is connected to the infusion fitting 7.

[0023] When treating electroplating wastewater, the wastewater undergoes multi-stage purification treatment through alkalization unit 2, electrolysis unit 3, sedimentation unit 4, and filtration unit 5. The recycled wastewater can then be stored in storage unit 6. Simultaneously, when the wastewater in sedimentation unit 4 enters filtration tank 501 through liquid conveying component 7, since slider 803 can slide on fixed rod 802, the drive motor 806 is activated, causing reciprocating screw 805 to drive drain pipe 804 to reciprocate through slide block 807. This facilitates the even distribution of wastewater onto filter screen 502 by drain pipe 804, improving the filtration effect and efficiency of filter screen 502. Furthermore, the anti-clogging component 10 and flushing component 11 further ensure the filtration effect of filter screen 502 on wastewater.

[0024] The filter control assembly 9 includes a pad 901, a rotating shaft 902, a rotating plate 903, a fixing sleeve 904, a magnetic plate 905, a conductive post 906, a current sensor 907, and a control component; A pad 901 is coaxially mounted on the end of the reciprocating screw 805 furthest from the drive motor 806. A rotating shaft 902 is coaxially mounted on the pad 901. Multiple rotating plates 903 are evenly mounted on the side wall of the rotating shaft 902. A fixed sleeve 904 is mounted on the filter tank 501. The rotating shaft 902 and the rotating plates 903 are located inside the fixed sleeve 904. Magnetic plates 905 are symmetrically mounted on the fixed sleeve 904 via control components. A conductive post 906 is rotatably mounted on the fixed sleeve 904. One end of the conductive post 906 is concentrically connected to the rotating shaft 902, and a current sensor 90 is mounted on the other end of the conductive post 906. 7. The current sensor 907 is electrically connected to the anti-blocking component 10 and the flushing component 11. When the reciprocating screw 805 rotates, the reciprocating screw 805 can drive the rotating shaft 902 to rotate synchronously through the pad 901. During the rotation, the rotating shaft 902 can drive the rotating plate 903 to cut the magnetic field lines between the two magnetic plates 905. The induced current formed can enter the current sensor 907 through the conductive post 906, so that the current sensor 907 can control the operation effect of the anti-blocking component 10 and the flushing component 11 according to the intensity of the induced current.

[0025] The control components include a slide rail 908, a moving block 909, and an electric telescopic rod 910; The fixed sleeve 904 is symmetrically provided with slide rails 908, and each slide rail 908 has a movable block 909 slidably installed inside. A magnetic plate 905 is installed on the movable block 909. An electric telescopic rod 910 is symmetrically installed on the fixed sleeve 904. The electric telescopic rod 910 is connected to the movable block 909 on the same side. The filter screen 502 is provided with multiple pressure sensors, which are electrically connected to the electric telescopic rod 910. When impurities clog the upper surface of the filter screen 502, the pressure sensors can control the electric telescopic rod 910 to extend a corresponding distance according to the intensity of the clogging. This allows the electric telescopic rod 910 to drive the movable block 909 to move synchronously within the slide rail 908, thereby adjusting the overlapping area of ​​the magnetic plate 905 and the rotating plate 903, and thus increasing the intensity of the induced current.

[0026] The anti-clogging component 10 includes a suction pipe 1004, a collection box 1005, an air pump 1006, a delivery pipe 1007, a telescopic air pipe 1008, and a suction pipe 1009. A transducer is symmetrically installed at the bottom of the drain pipe 804, and a suction pipe 1004 is installed on the transducer. A collection box 1005 and a vacuum pump 1006 are installed on the filter tank 501. The collection box 1005 and the output end of the vacuum pump 1006 are connected through a delivery pipe 1007. A suction pipe 1009 is installed on the input end of the vacuum pump 1006. A telescopic air pipe 1008 is installed on the output end of the suction pipe 1004. The telescopic air pipe 1008 and the suction pipe 1009 are connected by an air regulating component. When the drain pipe 804 sprays wastewater, the suction force of the suction pipe 1004 can be controlled by the air pump 1006 and the induced current intensity detected by the current sensor 907 through the air regulating component. At the same time, the drain pipe 804 can move back and forth through the displacement component during the movement, so that the suction pipe 1004 can fully adsorb the impurities on the upper surface of the filter screen 502, which can prevent impurities from clogging the filter screen 502.

[0027] The switching components include slide rail 1001, movable seat 1002, and linkage rod 1003; The bottom of the drain tube 804 is symmetrically mounted with a slide rail 1001. A movable seat 1002 is slidably mounted on the slide rail 1001. A linkage rod 1003 is mounted on the movable seat 1002. A suction tube 1004 is mounted at the bottom of the linkage rod 1003. The suction tube 1004 is in contact with the upper surface of the filter screen 502. A direction sensor is mounted on the drain tube 804. The direction sensor is electrically connected to the slide rail 1001. When the discharge tube 804 moves, the slide rail 1001 drives the suction tube 1004 to be behind the discharge tube 804. When the discharge tube 804 moves, the direction sensor detects the direction of movement of the discharge tube 804. At this time, the direction sensor can control the slide rail 1001 to run, so that the moving seat 1002 can drive the suction tube 1004 to move in the opposite direction of the movement of the discharge tube 804 through the linkage rod 1003. Thus, the suction tube 1004 can be automatically repositioned according to the reciprocating movement of the discharge tube 804, which is beneficial to ensure that the movement of the suction tube 1004 is always behind the movement of the discharge tube 804.

[0028] The air regulating component includes a solenoid valve 1010, a power supply 1011, and a rheostat 1012; The telescopic air pipe 1008 and the suction pipe 1009 are connected by a solenoid valve 1010. A power supply 1011 and a rheostat 1012 are installed on the filter tank 501. The power supply 1011, the rheostat 1012, and the solenoid valve 1010 are connected in sequence by wires. The rheostat 1012 is controlled by a current sensor 907 in a negative feedback manner. When the current sensor 907 detects the intensity of the induced current, it can control the resistance of the rheostat 1012 to decrease accordingly, thereby increasing the power supply of the power supply 1011 to the solenoid valve 1010. This allows the valve opening of the solenoid valve 1010 to increase accordingly, thereby improving the adsorption force of the suction pipe 1004 on impurities. The adsorption intensity of the suction pipe 1004 can be automatically increased according to the intensity of impurity blockage on the filter screen 502, which is beneficial to ensuring the filtration effect and filtration efficiency of the filter screen 502 on wastewater.

[0029] The flushing assembly 11 includes a branch pipe 1101, a nozzle 1102, a connecting rod 1103, a fixing plate 1104, a rotating column 1105, a micro servo motor 1106, and an angle sensor 1107. Multiple branch pipes 1101 are installed on the drainage rectangular tube 804. Each branch pipe 1101 is a flexible tube, and a nozzle 1102 is installed on each branch pipe 1101. Adjacent nozzles 1102 are connected by a connecting rod 1103. A fixing plate 1104 is symmetrically installed at the bottom of the drainage rectangular tube 804. A rotating column 1105 is rotatably installed on the fixing plate 1104. The rotating column 1105 is connected to the nozzle 1102. A micro servo motor 1106 is installed on the fixing plate 1104. The micro servo motor 1106 drives one rotating column 1105 to rotate. An angle sensor 1107 is installed at the end of the other rotating column 1105 away from the nozzle 1102. A current sensor 907 is connected to the micro servo motor 1106 and the angle sensor. The device 1107 is electrically connected, and the current sensor 907 can control the operation of the micro servo motor 1106 according to the change in the intensity of the induced current. The micro servo motor 1106 can drive multiple nozzles 1102 to rotate at a corresponding angle through the rotating column 1105. At the same time, when the angle sensor 1107 detects the corresponding rotation angle of the rotating column 1105, it can control the micro servo motor 1106 to stop. This is beneficial for automatically adjusting the tilt angle of the nozzles 1102 according to the clogging intensity of impurities on the upper surface of the filter screen 502. This is beneficial for the nozzles 1102 to scour the upper surface of the filter screen 502 while spraying wastewater, which helps to improve the adsorption effect of the suction pipe 1004 on impurities.

[0030] The miniature servo motor 1106 is electrically connected to the direction sensor, ensuring that the tilt direction of the nozzle 1102 always faces the moving direction of the drain pipe 804. Initially, the nozzle 1102 is vertically downward, and the maximum angle at which the nozzle 1102 changes from vertical to tilted is 45°. The direction sensor controls the miniature servo motor 1106 to rotate in the same direction as the drain pipe 804, and automatically controls the tilt direction of the nozzle 1102 to switch when the moving direction of the drain pipe 804 changes.

[0031] Infusion unit 7 includes a water pump 701, a suction tube 702, and an infusion tube 703; Two sets of water pumps 701 are installed on the filter tank 501. The input end of one set of water pumps 701 is connected to the sedimentation unit 2 through the suction pipe 702, and the output end of the water pump 701 is connected to the telescopic liquid pipe 808 through the delivery pipe 703. The input end of the other set of water pumps 701 is connected to the filter tank 501 through the suction pipe 702, and the output end of the water pump 701 is connected to the storage unit 6 through the delivery pipe 703.

[0032] Working principle of the invention: When treating electroplating wastewater, the wastewater undergoes multi-stage purification treatment through alkalization unit 2, electrolysis unit 3, sedimentation unit 4, and filtration unit 5. The recycled wastewater can then be stored in storage unit 6. Simultaneously, when the wastewater in sedimentation unit 4 enters filtration tank 501 through liquid conveying component 7, since slider 803 can slide on fixed rod 802, the drive motor 806 is activated, causing reciprocating screw 805 to drive drain pipe 804 to reciprocate through slide block 807. This facilitates the even distribution of wastewater onto filter screen 502 by drain pipe 804, improving the filtration effect and efficiency of filter screen 502. Furthermore, the anti-clogging component 10 and flushing component 11 further ensure the filtration effect of filter screen 502 on wastewater.

[0033] When the reciprocating screw 805 rotates, it can drive the rotating shaft 902 to rotate synchronously through the pad 901. During the rotation, the rotating shaft 902 can drive the rotating plate 903 to cut the magnetic field lines between the two magnetic plates 905. The induced current can enter the current sensor 907 through the conductive post 906. When impurities clog the upper surface of the filter screen 502, the pressure sensor can control the electric telescopic rod 910 to extend a corresponding distance according to the intensity of the clogging. This allows the electric telescopic rod 910 to drive the moving block 909 to move synchronously within the slide rail 908, thereby adjusting the overlapping area of ​​the magnetic plate 905 and the rotating plate 903. This, in turn, increases the intensity of the induced current, allowing the current sensor 907 to control the operation of the anti-clogging component 10 and the flushing component 11 according to the intensity of the induced current.

[0034] When the drain pipe 804 sprays wastewater, the vacuum pump 1006 is activated. Based on the detected induced current intensity, the current sensor 907 controls the resistance of the rheostat 1012 to decrease accordingly. This causes the power supply 1011 to increase the power supply to the solenoid valve 1010, allowing the valve opening of the solenoid valve 1010 to widen. This, in turn, enhances the adsorption force of the suction pipe 1004 on impurities. The suction strength of the suction pipe 1004 can be automatically increased based on the degree of impurity blockage on the filter screen 502, which helps ensure the filtration effect and efficiency of the filter screen 502 for wastewater. Simultaneously, when the drain pipe 804... 4. During movement, the direction of movement of the drain tube 804 is detected by the direction sensor. At this time, the direction sensor can control the slide rail 1001 to run, so that the moving seat 1002 can drive the suction tube 1004 to move in the opposite direction of the drain tube 804 through the linkage rod 1003. Thus, the suction tube 1004 can be automatically repositioned according to the reciprocating movement of the drain tube 804. This is beneficial to ensure that the suction tube 1004 is always in the rear position of the drain tube 804, so that the suction tube 1004 can fully adsorb the impurities on the upper surface of the filter screen 502, and prevent impurities from clogging the filter screen 502.

[0035] The current sensor 907 can control the operation of the micro servo motor 1106 based on changes in the intensity of the induced current. The direction sensor can control the micro servo motor 1106 so that its direction of rotation is the same as the movement direction of the drain pipe 804. It can also automatically control the tilting direction of the nozzles 1102 when the movement direction of the drain pipe 804 changes. When the micro servo motor 1106 is running, it can drive multiple nozzles 1102 to rotate at corresponding angles via the rotating column 1105. Simultaneously, the angle sensor 1107 can control the micro servo motor 1106 to stop when it detects the corresponding rotation angle of the rotating column 1105. This allows for automatic adjustment of the nozzle tilt angle based on the clogging intensity of impurities on the upper surface of the filter screen 502, thus facilitating the spraying of wastewater while simultaneously scouring the upper surface of the filter screen 502, improving the adsorption effect of the suction pipe 1004 on impurities.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A zero-discharge electroplating wastewater treatment device with multi-stage utilization function, characterized in that: The electroplating wastewater treatment equipment includes a wastewater treatment body (1), on which an alkalization unit (2), an electrolysis unit (3), a precipitation unit (4), a filtration unit (5) and a storage unit (6) are arranged in sequence. The precipitation unit (4) and the filtration unit (5) are connected by a liquid inlet (7), and the filtration unit (5) and the storage unit (6) are connected by a liquid inlet (7). The filtration unit (5) includes a filter tank (501) and a filter screen (502); The filter tank (501) is equipped with a filter screen (502), and the filter tank (501) is provided with a liquid equalization component (8), a filtration control component (9), an anti-clogging component (10) and a flushing component (11). The liquid equalization assembly (8) includes a fixed rod (802), a slider (803), a discharge tube (804), a reciprocating screw (805), a drive motor (806), a slide block (807), and a telescopic liquid tube (808). A fixed rod (802) is symmetrically installed inside the filter tank (501). A slider (803) is slidably installed on the fixed rod (802). A drain pipe (804) is installed on the slider (803). A reciprocating screw (805) is rotatably installed inside the filter tank (501). A drive motor (806) is installed on the filter tank (501). The drive motor (806) drives the reciprocating screw (805) to rotate. A slide block (807) is slidably installed on the reciprocating screw (805). The slide block (807) is connected to the drain pipe (804). The input end of the drain pipe (804) is connected to the infusion fitting (7).

2. The zero-discharge electroplating wastewater treatment equipment with multi-stage utilization function according to claim 1, characterized in that: The filter control assembly (9) includes a pad (901), a rotating shaft (902), a rotating plate (903), a fixing sleeve (904), a magnetic plate (905), a conductive post (906), a current sensor (907), and a control component; A pad (901) is coaxially mounted on the end of the reciprocating screw (805) away from the drive motor (806). A rotating shaft (902) is coaxially mounted on the pad (901). Multiple rotating plates (903) are evenly mounted on the side wall of the rotating shaft (902). A fixed sleeve (904) is mounted on the filter tank (501). The rotating shaft (902) and the rotating plates (903) are located inside the fixed sleeve (904). A magnetic plate (905) is symmetrically mounted on the fixed sleeve (904) through a control component. A conductive post (906) is rotatably mounted on the fixed sleeve (904). One end of the conductive post (906) is concentrically connected to the rotating shaft (902), and a current sensor (907) is mounted on the other end of the conductive post (906). The current sensor (907) is electrically connected to the anti-clogging component (10) and the flushing component (11).

3. The zero-discharge electroplating wastewater treatment equipment with multi-stage utilization function according to claim 2, characterized in that: The control components include a slide rail (908), a moving block (909), and an electric telescopic rod (910). The fixed sleeve (904) is symmetrically provided with slide rails (908), and each slide rail (908) is slidably installed with a moving block (909). A magnetic plate (905) is installed on the moving block (909). An electric telescopic rod (910) is symmetrically installed on the fixed sleeve (904). The electric telescopic rod (910) is connected to the moving block (909) on the same side. The filter screen (502) is provided with multiple pressure sensors, and the pressure sensors are electrically connected to the electric telescopic rod (910).

4. The zero-discharge electroplating wastewater treatment equipment with multi-stage utilization function according to claim 2, characterized in that: The anti-clogging component (10) includes a suction pipe (1004), a collection box (1005), a vacuum pump (1006), a delivery pipe (1007), a telescopic air pipe (1008), and a suction pipe (1009). A transposition device is symmetrically installed at the bottom of the drain pipe (804), and a suction pipe (1004) is installed on the transposition device. A collection box (1005) and a vacuum pump (1006) are installed on the filter tank (501). The collection box (1005) and the output end of the vacuum pump (1006) are connected through a delivery pipe (1007). A suction pipe (1009) is installed on the input end of the vacuum pump (1006). A telescopic air pipe (1008) is installed on the output end of the suction pipe (1004). The telescopic air pipe (1008) and the suction pipe (1009) are connected through an air regulating device.

5. A zero-discharge electroplating wastewater treatment device with multi-stage utilization function according to claim 4, characterized in that: The shifting component includes a slide rail (1001), a movable seat (1002), and a linkage rod (1003). The bottom of the drain tube (804) is symmetrically mounted with a slide rail (1001). A movable seat (1002) is slidably mounted on the slide rail (1001). A linkage rod (1003) is mounted on the movable seat (1002). A suction tube (1004) is mounted at the bottom of the linkage rod (1003). The suction tube (1004) is in contact with the upper surface of the filter screen (502). A direction sensor is mounted on the drain tube (804). The direction sensor is electrically connected to the slide rail (1001). When the drain tube (804) moves, the slide rail (1001) drives the suction tube (1004) to be behind the drain tube (804).

6. The zero-discharge electroplating wastewater treatment equipment with multi-stage utilization function according to claim 4, characterized in that: The gas regulating component includes a solenoid valve (1010), a power supply (1011), and a rheostat (1012). The telescopic air pipe (1008) and the air inhalation pipe (1009) are connected by a solenoid valve (1010). A power supply (1011) and a variable resistor (1012) are installed on the filter tank (501). The power supply (1011), the variable resistor (1012) and the solenoid valve (1010) are connected in sequence by wires. The variable resistor (1012) is under negative feedback control with the current sensor (907).

7. A zero-discharge electroplating wastewater treatment device with multi-stage utilization function according to claim 5, characterized in that: The flushing assembly (11) includes a branch pipe (1101), a nozzle (1102), a connecting rod (1103), a fixing plate (1104), a rotating column (1105), a micro servo motor (1106), and an angle sensor (1107). Multiple branch pipes (1101) are installed on the drain pipe (804). Each branch pipe (1101) is a flexible tube and a nozzle (1102) is installed on it. Adjacent nozzles (1102) are connected by a connecting rod (1103). A fixing plate (1104) is symmetrically installed at the bottom of the drain pipe (804). A rotating column (1105) is rotatably installed on the fixing plate (1104). The rotating column (1105) is connected to the nozzle (1102). A micro servo motor (1106) is installed on the fixing plate (1104). The micro servo motor (1106) drives one rotating column (1105) to rotate. An angle sensor (1107) is installed at the end of the other rotating column (1105) away from the nozzle (1102). The current sensor (907) is electrically connected to the micro servo motor (1106) and the angle sensor (1107).

8. A zero-discharge electroplating wastewater treatment device with multi-stage utilization function according to claim 7, characterized in that: The micro servo motor (1106) is electrically connected to the direction sensor, so that the tilt direction of the nozzle (1102) is always facing the moving direction of the drain pipe (804). In the initial state, the nozzle (1102) is in a vertical downward state, and the maximum included angle of the nozzle (1102) from the vertical state to the tilt state is 45°.

9. A zero-discharge electroplating wastewater treatment device with multi-stage utilization function according to claim 1, characterized in that: The infusion unit (7) includes a water pump (701), a suction tube (702), and an infusion tube (703); Two sets of water pumps (701) are installed on the filter tank (501). The input end of one set of water pumps (701) is connected to the sedimentation unit (2) through a suction pipe (702), and the output end of the water pump (701) is connected to the telescopic liquid pipe (808) through a delivery pipe (703). The input end of the other set of water pumps (701) is connected to the filter tank (501) through a suction pipe (702), and the output end of the water pump (701) is connected to the storage unit (6) through a delivery pipe (703).

Images