Corrugated board printing wastewater treatment device

Abstract

The invention relates to the technical field of wastewater treatment, and provides a corrugated board printing wastewater treatment device which comprises a wastewater treatment box, one side of the wastewater treatment box is fixedly connected with a drainage pipe, the other side of the wastewater treatment box is fixedly connected with a material injection pipe, and the top end of the material injection pipe is fixedly connected with an agent barrel. A filtering mechanism is mounted on the outer wall of the wastewater treatment tank and comprises a U-shaped support frame fixedly mounted on the outer wall of the wastewater treatment tank. By starting a driving motor, a transmission cam fixedly connected with the outer wall of a first rotating rod can rotate, the transmission cam extrudes a bearing plate, at the moment, a baffle extrudes a reset spring, a filter plate slides along the inner wall of the wastewater treatment box, and due to the influence of the reset spring, the filter plate does accelerated linear motion when reset; along with continuous rotation of the transmission cam, a filter plate is driven to shake in a reciprocating manner, so that the effect of conveniently filtering paper pulp impurities in the corrugated board printing wastewater is achieved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater treatment device for corrugated cardboard printing. Background Technology

[0002] Corrugated cardboard is one of the most widely used materials in the packaging industry. During its printing, slotting, and gluing processes, large amounts of water are needed to clean the printing rollers, ink lines, corrugating rollers, and equipment, resulting in significant wastewater from corrugated cardboard printing. This wastewater mainly contains water-based inks, starch adhesives, pulp fibers, pigments, surfactants, and various additives. It is characterized by high COD concentration, deep color, high suspended solids content, complex composition, and poor biodegradability. If discharged directly without effective treatment, it will cause serious water pollution, disrupting the ecological balance of aquatic bodies and affecting the safety of surrounding water sources. To this end, patent CN114573152B discloses a filtration device for wastewater treatment, including a device box. The top of the device box is provided with an inlet pipe, and the bottom of the device box is provided with an outlet pipe. The device box is equipped with a filtration mechanism, a mixing mechanism, a water level detection mechanism, and a chemical dispensing mechanism. This device, by providing a filtration mechanism, facilitates the cleaning of the surface of the filter plate, prevents lint and impurities from clogging the filter screen, and improves the wastewater treatment effect. When wastewater enters the filtration device, the motor drives the rotating rod to rotate, thereby driving the sliding block to reciprocate. The rotating plate rotates along the trajectory of the first guide groove and the second guide groove through the internal locking pin, so that the rotating plate starts to rotate after passing the filter plate, and rotates to the bottom of the filter box. Then the motor reverses, and the rotating plate returns, scraping off the impurities remaining on the surface of the filter plate. The existing technical solutions described above have the following drawbacks: During use, they cannot filter and pre-treat pulp impurities in printing wastewater, resulting in a large amount of free pulp fibers and fine paper scraps directly entering subsequent treatment tanks, sedimentation tanks, and conveying pipelines. Pulp fibers have strong adhesive properties and easily deposit and scale at pipe bends, valve interfaces, pump impellers, etc., causing pipe diameter reduction and a sharp decrease in flow rate in a short period; in severe cases, they can directly seize pump bearings, causing the conveying system to shut down and forcing the entire treatment device to cease operation. Summary of the Invention

[0003] The purpose of this invention is to provide a corrugated cardboard printing wastewater treatment device to solve the defect of existing corrugated cardboard printing wastewater treatment devices that cannot filter and pre-treat pulp impurities in printing wastewater.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wastewater treatment device for corrugated cardboard printing, comprising a wastewater treatment tank; A drain pipe is fixedly connected to one side of the wastewater treatment tank, and a feed pipe is fixedly connected to the other side of the wastewater treatment tank. A reagent tank is fixedly connected to the top of the feed pipe, and a filter mechanism is installed on the outer wall of the wastewater treatment tank. The filtration mechanism includes a U-shaped support frame fixedly installed on the outer wall of the wastewater treatment tank. A drive motor is fixedly connected to the outer wall of the U-shaped support frame. The output shaft of the drive motor is fixedly connected to a first rotating rod via a coupling. A transmission cam is fixedly connected to the outer wall of the first rotating rod. A receiving plate is movably connected to the outer wall of the transmission cam. A movable plate is fixedly connected to one side of the receiving plate. A filter plate is fixedly connected to the outer wall of the movable plate. A movable block is fixedly connected to the outer wall of the filter plate. A baffle is fixedly connected to the outer wall of the movable plate. A return spring is fixedly connected to one side of the baffle. The wastewater treatment tank has an internal movable trough, and a collection trough partition is fixedly connected to the inner wall of the wastewater treatment tank. The collection trough partition has a drainage hole inside.

[0005] Preferably, the transmission cam forms a rotating structure with the U-shaped support frame via the first rotating rod, and the transmission cam forms a sliding structure with the receiving plate.

[0006] Preferably, the movable plate and the U-shaped support frame form a sliding structure, the movable plate and the wastewater treatment tank form a sliding structure, and the reset spring is sleeved and installed on the outer wall of the movable plate.

[0007] Preferably, the movable block forms a sliding structure with the wastewater treatment tank via a movable trough, and the movable block is symmetrically arranged about the central axis of the filter plate.

[0008] Preferably, a guide plate is fixedly connected to the top of the receiving plate, a first T-shaped slider is fixedly connected to the bottom of the guide plate, a guide groove is formed inside the guide plate, a guide rod is movably connected inside the guide groove, a rack is fixedly connected to one end of the guide rod, a second T-shaped slider is fixedly connected to one side of the rack, a transmission gear is movably connected to the outer wall of the rack, a second rotating rod is fixedly connected to the inner wall of the transmission gear, a drain pipe is fixedly connected to the outer wall of the second rotating rod, a second flexible hose is fixedly connected to the top of the drain pipe, a water inlet pipe is fixedly connected to the top of the second flexible hose, an avoidance groove is formed inside the wastewater treatment tank, and a protective cover is fixedly installed on the top of the wastewater treatment tank.

[0009] Preferably, the U-shaped support frame has a first T-shaped groove inside, and the wastewater treatment tank has a second T-shaped groove on one side. The U-shaped support frame and the first T-shaped slider form a sliding structure through the first T-shaped groove, and the second T-shaped slider and the wastewater treatment tank form a sliding structure through the second T-shaped groove.

[0010] Preferably, the guide plate forms a sliding structure with the guide rod through the guide groove, the rack meshes with the transmission gear, the transmission gear forms a rotating structure with the protective cover through the second rotating rod, and the drain pipe forms a rotating structure with the protective cover through the second rotating rod.

[0011] Preferably, a fan blade is fixedly connected to one end of the first rotating rod, a fan housing is movably connected to the outer wall of the first rotating rod, an air guide pipe is fixedly connected to the output end of the fan housing, a first flexible hose is fixedly connected to one end of the air guide pipe, an air conveying plate is fixedly connected to one end of the first flexible hose, a nozzle is fixedly connected to the outer wall of the air conveying plate, the fan blade forms a rotating structure with the fan housing through the first rotating rod, and the air conveying plate forms a rotating structure with the protective cover through the second rotating rod.

[0012] Preferably, a cleaning port is provided on one side of the wastewater treatment tank, a sealing groove is provided on one side of the wastewater treatment tank, a rotating shaft is movably connected to the outer wall of the wastewater treatment tank, a sealing door plate is movably connected to the outer wall of the rotating shaft, a sealing ring is fixedly connected to one side of the sealing door plate, a positioning plate is fixedly connected to the outer wall of the sealing door plate, a threaded column is fixedly connected to the outer wall of the wastewater treatment tank, a threaded block is movably connected to the outer wall of the threaded column, and a threaded groove is provided inside the threaded block.

[0013] Preferably, the sealing door panel forms a rotating structure with the wastewater treatment tank via a rotating shaft, the sealing ring is engaged with the wastewater treatment tank via a sealing groove, the positioning plate is movably connected to the threaded column, and the threaded column is threadedly connected to the threaded block via a threaded groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When the corrugated cardboard printing wastewater treatment device is in use, the drive motor is started, causing the transmission cam to rotate and drive the filter plate to reciprocate and vibrate. This, combined with the reciprocating oscillating drain pipe, increases the contact area between the printing wastewater and the filter plate, facilitating the filtration of pulp impurities in the corrugated cardboard printing wastewater. Furthermore, the oscillating nozzle blows air onto the filter plate, achieving the blowing and conveying of pulp impurities, preventing filter plate clogging, and improving wastewater treatment efficiency. The specific method is as follows: By incorporating a filtration mechanism, the drive motor can rotate the transmission cam fixedly connected to the outer wall of the first rotating rod, causing the transmission cam to press against the receiving plate. At this time, the baffle presses against the return spring, causing the filter plate to slide along the inner wall of the wastewater treatment tank. Affected by the return spring, the filter plate accelerates linearly when it returns to its original position. As the transmission cam continues to rotate, it drives the filter plate to vibrate back and forth, increasing the contact area between the filter plate and the wastewater. This facilitates the filtration of pulp impurities in the corrugated cardboard printing wastewater. Furthermore, the vibrating filter plate not only prevents the accumulation and clogging of pulp impurities but also transports the pulp impurities to the collection tank partition for collection, improving the efficiency of wastewater treatment. Furthermore, as the receiving plate moves back and forth, it drives the guide plate to move back and forth, causing the guide rod to slide along the guide groove opened inside the guide plate, which in turn drives the rack to slide back and forth, causing the transmission gear to rotate back and forth, which in turn drives the drain pipe fixedly connected to the outer wall of the second rotating rod to swing back and forth. When printing wastewater enters through the inlet pipe, it will be washed onto the filter plate by the back and forth swing. The direction of the swing of the drain pipe is perpendicular to the direction of the back and forth movement of the filter plate, which further increases the contact area between the wastewater and the filter plate, thereby improving the efficiency of wastewater filtration. Furthermore, as the first rotating rod rotates, it drives the fan blades to rotate along the fan casing. The generated air is transported through the air duct and then through the air conveying plate fixedly connected to one end of the first flexible hose to the nozzle, so that the nozzle blows air onto the filter plate. This can further sweep and transport the pulp impurities that have been shaken off the filter plate, allowing the pulp impurities to fall onto the collection tank partition more quickly, preventing the filter plate from clogging and further improving the wastewater treatment efficiency. Furthermore, since the air conveying plate is fixedly installed on the outer wall of the second rotating rod, it can drive the air conveying plate and the water discharge pipe to swing synchronously, thereby increasing the range of the nozzle to blow the filter plate, so that the filter plate will not be blocked when filtering the corrugated cardboard printing wastewater, and further improving the wastewater treatment efficiency. The system is equipped with a wastewater treatment tank, a collection tank partition, a sealing door, a positioning plate, a threaded column, and a threaded block. By rotating the threaded block, the threaded block can be moved out of the outer wall of the threaded column and the squeezing and limiting of the positioning plate can be released. At this time, pulling the sealing door can cause the sealing door to flip open along the wastewater treatment tank, which facilitates the regular cleaning of pulp impurities accumulated on the collection tank partition. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the sealing door panel of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 This is a cross-sectional structural diagram of the present invention; Figure 7 This is a three-dimensional sectional view of the wastewater treatment tank of the present invention; Figure 8 This is a three-dimensional structural diagram of the filter plate of the present invention; Figure 9 This is a three-dimensional structural diagram of the transmission cam of the present invention; Figure 10 This is a three-dimensional structural diagram of the water pipe of the present invention; Figure 11 This is a schematic diagram showing the disassembled structure of the guide plate of the present invention; Figure 12 This is a three-dimensional cross-sectional view of the fan casing of the present invention.

[0016] The following are the annotations in the diagram: 1. Wastewater treatment tank; 2. Drain pipe; 3. Chemical tank; 4. Injection pipe; 5. Filtration mechanism; 51. U-shaped support frame; 52. Drive motor; 53. First rotating rod; 531. Fan blade; 532. Fan housing; 533. Air duct; 534. First flexible hose; 535. Air conveying plate; 536. Nozzle; 54. Transmission cam; 55. Receiving plate; 551. Guide plate; 552. First T-shaped slider; 553. Guide groove; 554. Guide rod; 555. Rack; 556. Second T-shaped slider; 557. Transmission gear. 558. Wheel; 559. Second rotating rod; 559. Water drain pipe; 5591. Second flexible hose; 5592. Water inlet pipe; 56. Movable plate; 57. Filter plate; 58. Movable block; 59. Baffle; 591. Return spring; 6. Movable groove; 7. First T-shaped slide groove; 8. Clearance groove; 9. Second T-shaped slide groove; 10. Collection groove partition; 11. Drain hole; 12. Cleaning port; 13. Sealing groove; 14. Rotating shaft; 15. Sealing door panel; 16. Sealing ring; 17. Positioning plate; 18. Threaded column; 19. Threaded block; 20. Threaded groove; 21. Protective cover. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-12 The present invention provides a wastewater treatment device for corrugated cardboard printing, comprising a wastewater treatment tank 1.

[0019] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, a drain pipe 2 is fixedly connected to one side of the wastewater treatment tank 1, and a feed pipe 4 is fixedly connected to the other side of the wastewater treatment tank 1. A chemical tank 3 is fixedly connected to the top of the feed pipe 4. A control valve is installed inside the feed pipe 4 to control the addition of chemical agents. A filter mechanism 5 is installed on the outer wall of the wastewater treatment tank 1. The filter mechanism 5 includes a U-shaped support frame 51 fixedly installed on the outer wall of the wastewater treatment tank 1. A drive motor 52 is fixedly connected to the outer wall of the U-shaped support frame 51. The output shaft of the drive motor 52 is fixedly connected to a first rotating rod 53 through a coupling. A transmission cam 54 is fixedly connected to the outer wall of the first rotating rod 53. A receiving plate 55 is movably connected to the outer wall of the transmission cam 54. A movable plate 56 is fixedly connected to one side of the receiving plate 55. A filter plate 57 is fixedly connected to the outer wall of the movable plate 56. The filter plate 57 is inclined. There is a movable block 58. A baffle 59 is fixedly connected to the outer wall of the movable plate 56. A return spring 591 is fixedly connected to one side of the baffle 59. The interior of the wastewater treatment tank 1 has a movable groove 6. A collection tank partition 10 is fixedly connected to the inner wall of the wastewater treatment tank 1. A drain hole 11 is opened inside the collection tank partition 10. The drain holes 11 are evenly distributed with respect to the inner wall of the collection tank partition 10. The transmission cam 54 forms a rotating structure with the U-shaped support frame 51 through the first rotating rod 53. The transmission cam 54 forms a sliding structure with the receiving plate 55. The movable plate 56 forms a sliding structure with the U-shaped support frame 51. The movable plate 56 forms a sliding structure with the wastewater treatment tank 1. The return spring 591 is sleeved and installed on the outer wall of the movable plate 56. The movable block 58 forms a sliding structure with the wastewater treatment tank 1 through the movable groove 6. The movable block 58 is symmetrically arranged with respect to the central axis of the filter plate 57.

[0020] By starting the drive motor 52, the transmission cam 54, which is fixedly connected to the outer wall of the first rotating rod 53, can rotate. This causes the transmission cam 54 to press against the receiving plate 55, driving the movable plate 56 to slide along the U-shaped support frame 51. At this time, the baffle 59 presses against the return spring 591, causing the filter plate 57 to slide along the inner wall of the wastewater treatment tank 1. After the transmission cam 54 rotates 360°, the pressure on the receiving plate 55 is released. Under the action of the return spring 591, the movable plate 56 can be reset, driving the filter plate 57 to slide back to its original position along the wastewater treatment tank 1. The reset is influenced by the return spring 591. The sound exhibits accelerated linear motion. As the transmission cam 54 rotates continuously, it drives the filter plate 57 to vibrate back and forth. When filtering pulp impurities in the wastewater, the filtered pulp impurities are shaken off the filter plate 57 and fall onto the collection tank partition 10 for collection. Excess water in the pulp impurities is discharged into the wastewater treatment tank 1 through the drain hole 11. By activating the control valve in the injection pipe 4, the chemical reagent in the reagent tank 3 can be added into the wastewater treatment tank 1, mixed with the pretreated wastewater, and discharged through the drain pipe 2 to be transported to the subsequent wastewater treatment pool.

[0021] Reference Figure 6 , Figure 7 , Figure 8 , Figure 10 , Figure 11 and Figure 12 As shown, a guide plate 551 is fixedly connected to the top of the receiving plate 55, and a first T-shaped slider 552 is fixedly connected to the bottom of the guide plate 551. A guide groove 553 is formed inside the guide plate 551, and a guide rod 554 is movably connected inside the guide groove 553. A rack 555 is fixedly connected to one end of the guide rod 554, and a second T-shaped slider 556 is fixedly connected to one side of the rack 555. A transmission gear 557 is movably connected to the outer wall of the rack 555, and a second rotating rod 558 is fixedly connected to the inner wall of the transmission gear 557. The outer wall of the second rotating rod 558... A drain pipe 559 is fixedly connected, and a second flexible hose 5591 is fixedly connected to the top of the drain pipe 559. An inlet pipe 5592 is fixedly connected to the top of the second flexible hose 5591. An obstacle groove 8 is provided inside the wastewater treatment tank 1. A protective cover 21 is fixedly installed on the top of the wastewater treatment tank 1. The inlet pipe 5592 is fixedly installed on the outer wall of the protective cover 21. A first T-shaped sliding groove 7 is provided inside the U-shaped support frame 51, and a second T-shaped sliding groove 9 is provided on one side of the wastewater treatment tank 1. The U-shaped support frame 51 connects with the first T-shaped slider 552 via the first T-shaped sliding groove 7. The system forms a sliding structure. The second T-shaped slider 556 forms a sliding structure with the wastewater treatment tank 1 through the second T-shaped sliding groove 9. The guide plate 551 forms a sliding structure with the guide rod 554 through the guide groove 553. The rack 555 meshes with the transmission gear 557. The transmission gear 557 forms a rotating structure with the protective cover 21 through the second rotating rod 558. The drain pipe 559 forms a rotating structure with the protective cover 21 through the second rotating rod 558. One end of the first rotating rod 53 is fixedly connected to a fan blade 531. The outer wall of the first rotating rod 53 is movably connected to a fan housing 532. The cover 532 is fixedly installed on the outer wall of the wastewater treatment tank 1. The output end of the fan cover 532 is fixedly connected to the air guide pipe 533. One end of the air guide pipe 533 is fixedly connected to the first flexible hose 534. One end of the first flexible hose 534 is fixedly connected to the air conveying plate 535. The air conveying plate 535 is fixedly installed on the outer wall of the second rotating rod 558. The outer wall of the air conveying plate 535 is fixedly connected to the nozzle 536. The fan blade 531 forms a rotating structure with the fan cover 532 through the first rotating rod 53. The air conveying plate 535 forms a rotating structure with the protective cover 21 through the second rotating rod 558.

[0022] As the receiving plate 55 reciprocates, it drives the guide plate 551 to reciprocate, causing the first T-shaped slider 552 to slide back and forth along the first T-shaped groove 7 inside the U-shaped support frame 51. This causes the guide rod 554 to slide along the guide groove 553 inside the guide plate 551, driving the rack 555 to slide back and forth. At this time, the second T-shaped slider 556 slides back and forth along the second T-shaped groove 9. Since the rack 555 is meshed with the transmission gear 557, the transmission gear 557 can rotate back and forth, driving the drain pipe 559 fixedly connected to the outer wall of the second rotating rod 558 to move... When printing wastewater enters through the inlet pipe 5592, it is swung back and forth and washed onto the filter plate 57. As the first rotating rod 53 rotates, it drives the fan blades 531 to rotate along the fan cover 532. The generated air is transported through the air guide pipe 533 and then through the air conveying plate 535 fixedly connected to one end of the first hose 534 to the nozzle 536, so that the nozzle 536 blows air onto the filter plate 57. The air conveying plate 535 is fixedly installed on the outer wall of the second rotating rod 558, which drives the air conveying plate 535 to swing synchronously with the water discharge pipe 559, so that the pulp impurities filtered on the filter plate 57 are blown away.

[0023] Reference Figure 4 and Figure 5 As shown, a cleaning port 12 is provided on one side of the wastewater treatment tank 1, and a sealing groove 13 is provided on one side of the wastewater treatment tank 1. A rotating shaft 14 is movably connected to the outer wall of the wastewater treatment tank 1, and a sealing door plate 15 is movably connected to the outer wall of the rotating shaft 14. A sealing ring 16 is fixedly connected to one side of the sealing door plate 15, and a positioning plate 17 is fixedly connected to the outer wall of the sealing door plate 15. A threaded column 18 is fixedly connected to the outer wall of the wastewater treatment tank 1, and a threaded block 19 is movably connected to the outer wall of the threaded column 18. A threaded groove 20 is provided inside the threaded block 19. The sealing door plate 15 forms a rotating structure with the wastewater treatment tank 1 through the rotating shaft 14. The sealing ring 16 is engaged with the wastewater treatment tank 1 through the sealing groove 13. The positioning plate 17 is movably connected to the threaded column 18, and the threaded column 18 is threadedly connected to the threaded block 19 through the threaded groove 20.

[0024] By rotating the threaded block 19, since the threaded block 19 is threadedly connected to the threaded post 18 through the threaded groove 20, the threaded block 19 can be moved out from the outer wall of the threaded post 18 and the squeezing limit on the positioning plate 17 can be released. At this time, the sealing door plate 15 is pulled, and under the action of the rotating shaft 14, the sealing door plate 15 can be flipped open along the wastewater treatment tank 1, so that the sealing ring 16 can be moved out from the sealing groove 13. At this time, the staff can clean the pulp impurities accumulated on the collection tank partition 10 through the cleaning port 12.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wastewater treatment device for corrugated cardboard printing, comprising a wastewater treatment tank (1); Its features are: A drain pipe (2) is fixedly connected to one side of the wastewater treatment tank (1), and a feed pipe (4) is fixedly connected to the other side of the wastewater treatment tank (1). A reagent tank (3) is fixedly connected to the top of the feed pipe (4), and a filter mechanism (5) is installed on the outer wall of the wastewater treatment tank (1). The filtration mechanism (5) includes a U-shaped support frame (51) fixedly installed on the outer wall of the wastewater treatment tank (1). A drive motor (52) is fixedly connected to the outer wall of the U-shaped support frame (51). The output shaft of the drive motor (52) is fixedly connected to a first rotating rod (53) via a coupling. A transmission cam (54) is fixedly connected to the outer wall of the first rotating rod (53). A receiving plate (55) is movably connected to the outer wall of the transmission cam (54). A movable plate (56) is fixedly connected to one side of the receiving plate (55). A filter plate (57) is fixedly connected to the outer wall of the movable plate (56). A movable block (58) is fixedly connected to the outer wall of the filter plate (57). A baffle (59) is fixedly connected to the outer wall of the movable plate (56). A return spring (591) is fixedly connected to one side of the baffle (59). The wastewater treatment tank (1) has an internal movable trough (6), and the inner wall of the wastewater treatment tank (1) is fixedly connected to a collection trough partition (10). The collection trough partition (10) has a drainage hole (11) inside.

2. The corrugated cardboard printing wastewater treatment device according to claim 1, characterized in that: The transmission cam (54) forms a rotating structure with the U-shaped support frame (51) through the first rotating rod (53), and the transmission cam (54) forms a sliding structure with the receiving plate (55).

3. The corrugated cardboard printing wastewater treatment device according to claim 1, characterized in that: The movable plate (56) and the U-shaped support frame (51) form a sliding structure, and the movable plate (56) and the wastewater treatment tank (1) form a sliding structure. The reset spring (591) is sleeved and installed on the outer wall of the movable plate (56).

4. The corrugated cardboard printing wastewater treatment device according to claim 1, characterized in that: The movable block (58) forms a sliding structure with the wastewater treatment tank (1) through the movable groove (6), and the movable block (58) is symmetrically arranged with respect to the central axis of the filter plate (57).

5. The corrugated cardboard printing wastewater treatment device according to claim 1, characterized in that: A guide plate (551) is fixedly connected to the top of the receiving plate (55), and a first T-shaped slider (552) is fixedly connected to the bottom of the guide plate (551). A guide groove (553) is provided inside the guide plate (551), and a guide rod (554) is movably connected inside the guide groove (553). A rack (555) is fixedly connected to one end of the guide rod (554), and a second T-shaped slider (556) is fixedly connected to one side of the rack (555). The outer wall of the rack (555) is movable. A transmission gear (557) is connected to the inner wall of the transmission gear (557), a second rotating rod (558) is fixedly connected to the inner wall of the second rotating rod (558), a drain pipe (559) is fixedly connected to the outer wall of the second rotating rod (558), a second flexible hose (5591) is fixedly connected to the top of the drain pipe (559), a water inlet pipe (5592) is fixedly connected to the top of the second flexible hose (5591), an avoidance groove (8) is provided inside the wastewater treatment tank (1), and a protective cover (21) is fixedly installed on the top of the wastewater treatment tank (1).

6. The corrugated cardboard printing wastewater treatment device according to claim 5, characterized in that: The U-shaped support frame (51) has a first T-shaped groove (7) inside, and the wastewater treatment tank (1) has a second T-shaped groove (9) on one side. The U-shaped support frame (51) and the first T-shaped slider (552) form a sliding structure through the first T-shaped groove (7), and the second T-shaped slider (556) and the wastewater treatment tank (1) form a sliding structure through the second T-shaped groove (9).

7. The corrugated cardboard printing wastewater treatment device according to claim 5, characterized in that: The guide plate (551) forms a sliding structure with the guide rod (554) through the guide groove (553), the rack (555) meshes with the transmission gear (557), the transmission gear (557) forms a rotating structure with the protective cover (21) through the second rotating rod (558), and the drain pipe (559) forms a rotating structure with the protective cover (21) through the second rotating rod (558).

8. The corrugated cardboard printing wastewater treatment device according to claim 5, characterized in that: One end of the first rotating rod (53) is fixedly connected to a fan blade (531), and the outer wall of the first rotating rod (53) is movably connected to a fan housing (532). The output end of the fan housing (532) is fixedly connected to a duct (533), one end of the duct (533) is fixedly connected to a first flexible hose (534), one end of the first flexible hose (534) is fixedly connected to an air conveying plate (535), and the outer wall of the air conveying plate (535) is fixedly connected to a nozzle (536). The fan blade (531) forms a rotating structure with the fan housing (532) through the first rotating rod (53), and the air conveying plate (535) forms a rotating structure with the protective cover (21) through the second rotating rod (558).

9. The corrugated cardboard printing wastewater treatment device according to claim 1, characterized in that: A cleaning port (12) is provided on one side of the wastewater treatment tank (1), a sealing groove (13) is provided on one side of the wastewater treatment tank (1), a rotating shaft (14) is movably connected to the outer wall of the wastewater treatment tank (1), a sealing door plate (15) is movably connected to the outer wall of the rotating shaft (14), a sealing ring (16) is fixedly connected to one side of the sealing door plate (15), a positioning plate (17) is fixedly connected to the outer wall of the sealing door plate (15), a threaded column (18) is fixedly connected to the outer wall of the wastewater treatment tank (1), a threaded block (19) is movably connected to the outer wall of the threaded column (18), and a threaded groove (20) is provided inside the threaded block (19).

10. The corrugated cardboard printing wastewater treatment device according to claim 9, characterized in that: The sealing door panel (15) forms a rotating structure with the wastewater treatment tank (1) through the rotating shaft (14). The sealing ring (16) is engaged with the wastewater treatment tank (1) through the sealing groove (13). The positioning plate (17) is movably connected with the threaded column (18). The threaded column (18) is threadedly connected with the threaded block (19) through the threaded groove (20).

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