Wastewater treatment device for corrugated paper production

Abstract

The invention relates to the technical field of wastewater treatment, and provides a corrugated paper production wastewater treatment device which comprises a base, a filter box and a treatment box are arranged on the base, one end of the filter box is communicated with a water inlet pipe, and one end of the treatment box is communicated with a water outlet pipe. The wastewater treatment device further comprises a filter screen plate, a transfer assembly, a dosing assembly and a stirring assembly, the filter screen plate is arranged on the inner side wall of the filter box through a clamping mechanism and used for intercepting small-size fibers in wastewater, the transfer assembly is arranged between the filter box and the treatment box and used for transferring the filtered wastewater into the treatment box, and the dosing assembly is arranged on the treatment box and used for stirring the small-size fibers in the wastewater. The flocculant adding assembly is arranged in the treatment box and used for adding a flocculant into the treatment box, and the stirring assembly is arranged in the treatment box and used for stirring wastewater and the flocculant in the treatment box. Through the technical scheme, the technical problem that fibers and chemical substances contained in wastewater are difficult to treat in the prior art is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of wastewater treatment, and more particularly, to a wastewater treatment device for corrugated paper production. Background Art

[0002] Corrugated paper is a plate-like object formed by bonding a facing paper and a corrugated paper in a waveform formed by a corrugating roll. During the production of corrugated paper, a large amount of wastewater is often generated. If the wastewater is directly discharged, it will cause environmental pollution. Therefore, it is necessary to treat the wastewater. In the prior art, generally, larger solid impurities in the wastewater are intercepted by a grille. However, a large amount of wastewater is generated during the production of corrugated paper, and this wastewater contains a large amount of fibers and chemical substances. Only the larger-sized fibers in the water can be intercepted by the grille, and the treatment effect is average. Summary of the Invention

[0003] To overcome the above defects, embodiments of the present disclosure provide a wastewater treatment device for corrugated paper production, which is used to solve the technical problem that it is difficult to treat the fibers and chemical substances contained in the wastewater in the prior art.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a wastewater treatment device for corrugated paper production, including a base, a filtration tank and a treatment tank are arranged on the base, a water inlet pipe is communicated with one end of the filtration tank, a water outlet pipe is communicated with one end of the treatment tank, and further includes a filter mesh plate, a transfer assembly, a chemical dosing assembly and a stirring assembly. The filter mesh plate is arranged on the inner side wall of the filtration tank through a clamping mechanism for intercepting small-sized fibers in the wastewater. The transfer assembly is arranged between the filtration tank and the treatment tank for transferring the filtered wastewater into the treatment tank. The chemical dosing assembly is arranged on the treatment tank for adding a flocculant into the treatment tank. The stirring assembly is arranged in the treatment tank for stirring the wastewater and the flocculant in the treatment tank.

[0005] In order to install the filter mesh plate in the filtration tank and facilitate disassembly, so that the filter mesh plate can be cleaned and replaced in time, the clamping mechanism includes two groups of connecting springs, limiting hemispheres and a quick-release assembly. The two groups of connecting springs are symmetrically arranged on the filter mesh plate. Through holes matching with the connecting springs are formed on the filter mesh plate. One end of the connecting spring is fixedly connected with the inner bottom wall of the through hole. Each group of connecting springs includes a plurality of the connecting springs. One end of the limiting hemisphere is fixedly connected with the other end of the connecting spring. A plurality of limiting holes matching with the limiting hemispheres are formed in the filtration tank. The quick-release assembly is arranged on the outer side wall of the filtration tank for disassembling the filter mesh plate.

[0006] Further, the quick-release component includes two support frames, a push rod, a connecting plate, two support springs, a plurality of extrusion rods and a limiting plate. The two support frames are symmetrically arranged on the filter box. One end of the push rod penetrates through the support frame and is slidably connected to the support frame. The other end of the push rod is provided with a handle. One end of the connecting plate is fixedly connected to one end of the push rod. The two support springs are symmetrically arranged on the connecting plate. One end of the support spring is fixedly connected to one end of the connecting plate, and the other end is fixedly connected to the outer side wall of the filter box. One end of the plurality of extrusion rods is fixedly connected to one end of the connecting plate. A chute matching the extrusion rod is formed on the filter box. The other end of the extrusion rod is slidably matched with the inner wall of the chute. The limiting plate is sleeved on the extrusion rod.

[0007] In order to transfer the wastewater after primary filtration into the treatment box, the transfer component includes a water suction pipe, a water suction pump and a transfer pipe. One end of the water suction pipe is communicated with the bottom of one end of the filter box. The water suction pump is installed on the outer side wall of the filter box. The input end of the water suction pump is communicated with the other end of the water suction pipe. One end of the transfer pipe is communicated with the output end of the water suction pump, and the other end is communicated with the top end of the treatment box.

[0008] In order to treat fine fibers and chemical substances, a flocculant is added to the wastewater to precipitate the fine fibers and chemical substances, which is convenient for subsequent removal. The chemical dosing component includes a chemical agent tank, a metering pump and a chemical agent outlet pipe. The chemical agent tank is arranged at the top end of the treatment box. The metering pump is installed at the top end of the treatment box. The input end of the metering pump is communicated with the chemical agent tank. One end of the chemical agent outlet pipe is communicated with the output end of the metering pump, and the other end is communicated with the top end of the treatment box.

[0009] In order to make the fine fibers and chemical substances fully mix with the flocculant, the stirring component includes a first motor, a rotating shaft and a plurality of stirring rods. The first motor is installed at the top end of the treatment box. One end of the rotating shaft is rotatably connected to the inner top wall of the treatment box. The output end of the first motor is coaxially connected to the top end of the rotating shaft. One end of the plurality of stirring rods is fixedly connected to the outer side wall of the rotating shaft.

[0010] In order to adjust the amount of the flocculant added according to the turbidity of the fine fibers and chemical substances in the treatment box, so as to add an appropriate amount of flocculant, a turbidity meter is installed at the bottom end of the rotating shaft. A controller matching the turbidity meter is arranged on the metering pump. The controller is electrically connected to the metering pump.

[0011] In order to enable the extrusion rod to push the limiting hemisphere out of the limiting hole, the chute is communicated with the limiting hole, and the cross-sectional area of the chute is smaller than the cross-sectional area of the limiting hole.

[0012] In order to facilitate the discharge of the treated water source in the treatment tank, a valve is installed on the water outlet pipe.

[0013] In order to prevent the pressing rod from entering the through hole during the process of pushing the limiting hemisphere, the distance between one end of the limiting plate and the outer wall of the filter tank is equal to the thickness of the limiting hemisphere.

[0014] The beneficial effects of the embodiments of the present disclosure are as follows: 1. In the present disclosure, by providing a clamping mechanism, a plurality of limiting hemispheres are clamped into the limiting holes, so as to fix the filter mesh plate in the filter tank. After the wastewater passes through the filtration of the filter mesh plate, the push rod is pushed by holding the handle to drive a plurality of pressing rods to push the limiting hemispheres out of the limiting holes, and then the filter mesh plate is lifted upward to take out the filter mesh plate, so as to clean and replace the filter mesh plate; 2. In the present disclosure, through the cooperation of the transfer component, the chemical adding component and the stirring component, the wastewater is transferred into the treatment tank. The turbidity meter detects that the turbidity of the fibers and chemical substances in the wastewater increases and transmits a signal to the controller. The controller controls the metering pump to increase the output of the flocculant, and cooperates with the stirring of a plurality of stirring rods to fully mix the wastewater and the flocculant, accelerate the precipitation process of the fibers and chemical substances, and can add appropriate flocculants according to the turbidity of the fibers and chemical substances, avoiding the waste of chemicals. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the following drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained according to the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present disclosure; Figure 2 It is a partial structural cross-sectional view of the overall structure in an embodiment of the present disclosure; Figure 3 It is a partial structural cross-sectional view of the cooperation of the filter tank, the filter mesh plate and the clamping mechanism in an embodiment of the present disclosure; Figure 4 It is in an embodiment of the present disclosure Figure 3 The enlarged view of the partial structure at A; Figure 5 It is a partial structural cross-sectional view in the state where the pressing rod pushes the limiting hemisphere out of the limiting hole in an embodiment of the present disclosure; Figure 6 It is in an embodiment of the present disclosure Figure 5Local enlarged view at B in the [Chinese context]; Figure 7 It is a partial structural cross-sectional view of the cooperation between the filter box and the filter screen plate in an embodiment of the present disclosure.

[0017] In the figure: 1. Base; 2. Filter box; 3. Treatment box; 4. Water inlet pipe; 5. Water outlet pipe; 6. Filter screen plate; 7. Connecting spring; 8. Limiting hemisphere; 9. Support frame; 10. Push rod; 11. Handle; 12. Connecting plate; 13. Support spring; 14. Extrusion rod; 15. Limiting plate; 16. Water extraction pipe; 17. Water extraction pump; 18. Transfer pipe; 19. Reagent box; 20. Metering pump; 21. Medicine outlet pipe; 22. First motor; 23. Rotating shaft; 24. Stirring rod; 25. Turbidity meter; 26. Valve; 27. Chute; 28. Limiting hole. Specific embodiments

[0018] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only for explaining the present disclosure, rather than limiting the present disclosure.

[0019] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0020] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0021] ​

[0022] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present disclosure.

[0023] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0024] As Figures 1 to 7 shown, it shows a wastewater treatment device for corrugated paper production in an embodiment of the present disclosure, including a base 1. A filter box 2 and a treatment box 3 are provided on the base 1. A box cover is provided on the filter box 2. One end of the filter box 2 is communicated with a water inlet pipe 4. The water inlet pipe 4 is at the top of one end of the filter box 2. One end of the treatment box 3 is communicated with a water outlet pipe 5. The water outlet pipe 5 is at the bottom of one end of the treatment box 3. In order to facilitate the discharge of the treated water source in the treatment box 3, a valve 26 is installed on the water outlet pipe 5. It also includes a filter mesh plate 6, a transfer assembly, a medicine adding assembly, and a stirring assembly; As Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the filter screen plate 6 is arranged on the inner side wall of the filter box 2 through a clamping mechanism, which is used to intercept small-sized fibers in the wastewater. In order to install the filter screen plate 6 in the filter box 2 and facilitate disassembly, the filter screen plate 6 can be cleaned and replaced in time. The clamping mechanism includes two groups of connecting springs 7, limiting hemispheres 8 and a quick-release component. The two groups of connecting springs 7 are symmetrically arranged on the filter screen plate 6. Through holes matching with the connecting springs 7 are opened on the filter screen plate 6. Filter holes are opened at the through holes on the filter screen plate 6. One end of the connecting spring 7 is fixedly connected to the inner bottom wall of the through hole. Each group of connecting springs 7 includes multiple connecting springs 7. One end of the limiting hemisphere 8 is fixedly connected to the other end of the connecting spring 7. The cross-sectional area of the limiting hemisphere 8 is the same as that of the through hole. Multiple limiting holes 28 matching with the limiting hemispheres 8 are opened in the filter box 2. The volume of the limiting hemisphere 8 is the same as the volume of the limiting hole 28. First, open the box cover, drive the filter screen plate 6 into the filter box 2. The multiple limiting hemispheres 8 are squeezed by the inner side wall of the filter box 2. The limiting hemispheres 8 move towards the through holes. The limiting hemispheres 8 squeeze the connecting springs 7, and the connecting springs 7 contract. When the limiting hemispheres 8 enter the through holes, the outer side wall of the filter screen plate 6 fits with the inner side wall of the filter box 2. At this time, push the filter screen plate 6 downward. When the limiting hemispheres 8 move to the corresponding limiting holes 28, the connecting springs 7 push the limiting hemispheres 8 out of the through holes and insert them into the limiting holes 28, thus fixing the filter screen plate 6 in the filter box 2. The quick-release component is arranged on the outer side wall of the filter box 2 and is used to disassemble the filter screen plate 6. The quick-release component includes two support frames 9, a push rod 10, a connecting plate 12, two support springs 13, multiple extrusion rods 14 and a limiting plate 15. The two support frames 9 are symmetrically arranged on the filter box 2. One end of the push rod 10 passes through the support frame 9 and is slidably connected to the support frame 9. The other end of the push rod 10 is provided with a handle 11. One end of the connecting plate 12 is fixedly connected to one end of the push rod 10. The two support springs 13 are symmetrically arranged on the connecting plate 12. One end of the support spring 13 is fixedly connected to one end of the connecting plate 12, and the other end is fixedly connected to the outer side wall of the filter box 2. One end of the multiple extrusion rods 14 is fixedly connected to one end of the connecting plate 12. The multiple extrusion rods 14 are all between the two support springs 13. A chute 27 matching with the extrusion rods 14 is opened on the filter box 2. The other end of the extrusion rod 14 is slidably matched with the inner wall of the chute 27. In order to enable the extrusion rod 14 to push the limiting hemisphere 8 out of the limiting hole 28, the chute 27 and the limiting hole 28 are communicated. The cross-sectional area of the chute 27 is smaller than that of the limiting hole 28. A limiting plate 15 is sleeved on the extrusion rod 14. In order to prevent the extrusion rod 14 from entering the through hole during the process of pushing the limiting hemisphere 8, the distance between one end of the limiting plate 15 and the outer side wall of the filter box 2 is equal to the thickness of the limiting hemisphere 8. Push the push rod 10 by holding the handle 11. The push rod 10 drives the connecting plate 12 to move towards the filter box 2. The connecting plate 12 squeezes the two support springs 13, and the support springs 13 contract. The connecting plate 12 pushes the multiple extrusion rods 14 to move. The other ends of the multiple extrusion rods 14 push the limiting hemisphere 8 to move.When one end of the limit plate 15 is attached to the outer wall of the filter box 2, the extrusion rod 14 completely pushes the limit hemisphere 8 out of the limit hole 28, and the other end of the extrusion rod 14 is inside the limit hole 28. By lifting the filter mesh plate 6 upward, the filter mesh plate 6 can be taken out to clean and replace the filter mesh; As Figure 1 shown, the transfer assembly is arranged between the filter box 2 and the treatment box 3 and is used to transfer the filtered wastewater into the treatment box 3. In order to transfer the wastewater after primary filtration into the treatment box 3, the transfer assembly includes a water suction pipe 16, a water suction pump 17 and a transfer pipe 18. One end of the water suction pipe 16 is communicated with the bottom of one end of the filter box 2, the water suction pump 17 is installed on the outer wall of the filter box 2, the input end of the water suction pump 17 is communicated with the other end of the water suction pipe 16, one end of the transfer pipe 18 is communicated with the output end of the water suction pump 17, and the other end is communicated with the top of the treatment box 3. The small-sized fibers of the wastewater are intercepted by the filtration of the filter mesh plate 6, and the wastewater is at the bottom of the filter box 2. By starting the water suction pump 17, the water suction pump 17 works to pump out the wastewater, and the wastewater is transferred to the top of the treatment box 3 through the water suction pipe 16, the water suction pump 17 and the transfer pipe 18 and enters the treatment box 3; As Figure 1 and Figure 2 shown, the chemical dosing assembly is arranged on the treatment box 3 and is used to add flocculant into the treatment box 3. In order to treat fine fibers and chemical substances, flocculant is added to the wastewater to precipitate the fine fibers and chemical substances, which is convenient for subsequent removal. The chemical dosing assembly includes a chemical agent tank 19, a metering pump 20 and a chemical agent outlet pipe 21. The chemical agent tank 19 is arranged at the top of the treatment box 3, the metering pump 20 is installed at the top of the treatment box 3, the input end of the metering pump 20 is communicated with the chemical agent tank 19, one end of the chemical agent outlet pipe 21 is communicated with the output end of the metering pump 20, and the other end is communicated with the top of the treatment box 3. In order to adjust the amount of flocculant added according to the turbidity of fine fibers and chemical substances in the treatment box 3, so as to add an appropriate amount of flocculant, a turbidity meter 25 is installed at the bottom end of the rotating shaft 23, and a controller matching the turbidity meter 25 is arranged on the metering pump 20. The controller is electrically connected to the metering pump 20. When the wastewater in the treatment box 3 gradually accumulates and the wastewater level gradually rises, when the wastewater submerges the turbidity meter 25, the turbidity meter 25 detects that the turbidity of the fibers and chemical substances in the wastewater increases and transmits a signal to the controller. The controller controls the metering pump 20 to increase the output of the flocculant, and the flocculant is transferred out of the chemical agent tank 19 and enters the treatment box 3 through the metering pump 20 and the chemical agent outlet pipe 21; As Figure 2As shown in the figure, the stirring assembly is arranged in the treatment tank 3 and is used for stirring the wastewater and the flocculant in the treatment tank 3. In order to ensure that both the fine fibers and the chemical substances are fully mixed with the flocculant, the stirring assembly includes a first motor 22, a rotating shaft 23, and a plurality of stirring rods 24. The first motor 22 is installed at the top of the treatment tank 3. One end of the rotating shaft 23 is rotatably connected to the inner top wall of the treatment tank 3, and the output end of the first motor 22 is coaxially connected to the top end of the rotating shaft 23. One ends of the plurality of stirring rods 24 are fixedly connected to the outer side wall of the rotating shaft 23. By starting the first motor 22, the output end of the first motor 22 rotates to drive the rotating shaft 23 to rotate, and the rotating shaft 23 drives the plurality of stirring rods 24 to rotate. The stirring rods 24 fully mix the wastewater and the flocculant in the treatment tank 3. Subsequently, the first motor 22 is turned off, and the mixed wastewater is allowed to stand and precipitate. Finally, the precipitate is on the inner bottom wall of the treatment tank 3 waiting for subsequent removal. By opening the valve 26, the treated water source is transferred out of the treatment tank 3 through the water outlet pipe 5; Working principle: Place the wastewater treatment device for corrugated paper production in a suitable operating site. During the production process of corrugated paper, a large amount of wastewater is generated. Before the wastewater is discharged into the filtration tank 2 through the water inlet pipe 4, first open the tank cover, drive the filter mesh plate 6 into the filtration tank 2. Multiple limiting hemispheres 8 are squeezed by the inner wall of the filtration tank 2. The limiting hemispheres 8 move towards the through holes, squeezing the connecting springs 7. The connecting springs 7 contract. When the limiting hemispheres 8 enter the through holes, the outer wall of the filter mesh plate 6 fits against the inner wall of the filtration tank 2. At this time, push the filter mesh plate 6 downward. When the limiting hemispheres 8 move to the corresponding limiting holes 28, the connecting springs 7 push the limiting hemispheres 8 out of the through holes and insert them into the limiting holes 28, thus fixing the filter mesh plate 6 in the filtration tank 2. The wastewater is at the bottom of the filtration tank 2 after being filtered by the filter mesh plate 6. Start the water pump 17. The water pump 17 works to pump out the wastewater. The wastewater is transferred to the top of the treatment tank 3 through the water extraction pipe 16, the water pump 17 and the transfer pipe 18 and enters the treatment tank 3. When the wastewater submerges the turbidity meter 25, the turbidity meter 25 detects that the turbidity of the fibers and chemical substances in the wastewater increases and transmits a signal to the controller. The controller controls the metering pump 20 to increase the output of the flocculant. The flocculant is transferred out of the reagent tank 19 and enters the treatment tank 3 through the metering pump 20 and the medicine outlet pipe 21. By starting the first motor 22, the output end of the first motor 22 rotates to drive the rotating shaft 23 to rotate. The rotating shaft 23 drives multiple stirring rods 24 to rotate. The stirring rods 24 fully mix the wastewater and the flocculant in the treatment tank 3. Then turn off the first motor 22 to allow the mixed wastewater to settle. Finally, the sediment is on the inner bottom wall of the treatment tank 3 waiting for subsequent removal. By opening the valve 26, the treated water source is transferred out of the treatment tank 3 through the water outlet pipe 5. After the wastewater treatment work is completed, the push rod 10 can be pushed by holding the handle 11. The push rod 10 drives the connecting plate 12 to move towards the filtration tank 2. The connecting plate 12 squeezes two support springs 13. The support springs 13 contract. The connecting plate 12 pushes multiple extrusion rods 14 to move. The other ends of the multiple extrusion rods 14 push the limiting hemispheres 8 to move. When one end of the limiting plate 15 fits against the outer wall of the filtration tank 2, the extrusion rods 14 completely push the limiting hemispheres 8 out of the limiting holes 28, and the other ends of the extrusion rods 14 are in the limiting holes 28. By lifting the filter mesh plate 6 upward, the filter mesh plate 6 can be taken out to clean the filter mesh plate and replace it.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered by the scope of the claims of the present disclosure.

Claims

1. A wastewater treatment device for corrugated paper production, comprising a base (1), characterized in that, A filter box (2) and a treatment box (3) are provided on the base (1). One end of the filter box (2) is communicated with a water inlet pipe (4), and one end of the treatment box (3) is communicated with a water outlet pipe (5). It further includes: A filter screen plate (6) which is arranged on the inner side wall of the filter box (2) through a clamping mechanism and is used for intercepting small-sized fibers in the waste water; A transfer component which is arranged between the filter box (2) and the treatment box (3) and is used for transferring the filtered waste water into the treatment box (3); A chemical adding component which is arranged on the treatment box (3) and is used for adding a flocculant into the treatment box (3); A stirring component which is arranged in the treatment box (3) and is used for stirring the waste water and the flocculant in the treatment box (3).

2. The wastewater treatment device for corrugated paper production according to claim 1, wherein The clamping mechanism includes: Two groups of connecting springs (7) which are symmetrically arranged on the filter screen plate (6). Through holes matched with the connecting springs (7) are formed on the filter screen plate (6). One end of the connecting spring (7) is fixedly connected with the inner bottom wall of the through hole. Each group of connecting springs (7) includes a plurality of the connecting springs (7); A limiting hemisphere (8) whose one end is fixedly connected with the other end of the connecting spring (7). A plurality of limiting holes (28) matched with the limiting hemisphere (8) are formed in the filter box (2); A quick-disassembly component which is arranged on the outer side wall of the filter box (2) and is used for disassembling the filter screen plate (6).

3. The wastewater treatment device for corrugated paper production according to claim 2, characterized in that, The quick-disassembly component includes: Two support frames (9) which are symmetrically arranged on the filter box (2); A push rod (10) whose one end penetrates through the support frame (9) and is slidably connected with the support frame (9), and the other end of the push rod (10) is provided with a handle (11); A connecting plate (12) whose one end is fixedly connected with the one end of the push rod (10); Two support springs (13) which are symmetrically arranged on the connecting plate (12). One end of the support spring (13) is fixedly connected with the one end of the connecting plate (12), and the other end is fixedly connected with the outer side wall of the filter box (2); A plurality of extrusion rods (14) whose one ends are fixedly connected with the one end of the connecting plate (12). A sliding groove (27) matched with the extrusion rod (14) is formed on the filter box (2), and the other end of the extrusion rod (14) is slidably matched with the inner wall of the sliding groove (27); A limiting plate (15) which is sleeved on the extrusion rod (14).

4. The wastewater treatment device for corrugated paper production according to claim 3, characterized in that, The transfer component includes: A water suction pipe (16) whose one end is communicated with the bottom of one end of the filter box (2); A water suction pump (17) which is installed on the outer side wall of the filter box (2), and the input end of the water suction pump (17) is communicated with the other end of the water suction pipe (16); A transfer pipe (18), one end of the transfer pipe (18) is communicated with the output end of the water pump (17), and the other end is communicated with the top end of the treatment tank (3).

5. The wastewater treatment device for corrugated paper production according to claim 4, wherein, The chemical adding assembly includes: A chemical tank (19), the chemical tank (19) is arranged on the top end of the treatment tank (3); A metering pump (20), the metering pump (20) is installed on the top end of the treatment tank (3), and the input end of the metering pump (20) is communicated with the chemical tank (19); A chemical outlet pipe (21), one end of the chemical outlet pipe (21) is communicated with the output end of the metering pump (20), and the other end is communicated with the top end of the treatment tank (3).

6. The wastewater treatment device for corrugated paper production according to claim 5, characterized in that, The stirring assembly includes: A first motor (22), the first motor (22) is installed on the top end of the treatment tank (3); A rotating shaft (23), one end of the rotating shaft (23) is rotatably connected to the inner top wall of the treatment tank (3), and the output end of the first motor (22) is coaxially connected to the top end of the rotating shaft (23); A plurality of stirring rods (24), one ends of the plurality of stirring rods (24) are fixedly connected to the outer side wall of the rotating shaft (23).

7. The wastewater treatment device for corrugated paper production according to claim 6, wherein, A turbidity meter (25) is installed at the bottom end of the rotating shaft (23), a controller matching the turbidity meter (25) is arranged on the metering pump (20), and the controller is electrically connected to the metering pump (20).

8. The wastewater treatment device for corrugated paper production according to claim 2, wherein The sliding groove (27) is communicated with the limiting hole (28), and the cross-sectional area of the sliding groove (27) is smaller than the cross-sectional area of the limiting hole (28).

9. The wastewater treatment device for corrugated paper production according to claim 1, characterized in that, A valve (26) is installed on the water outlet pipe (5).

10. The wastewater treatment device for corrugated paper production according to claim 3, wherein, The distance between one end of the limiting plate (15) and the outer side wall of the filter tank (2) is equal to the thickness of the limiting hemisphere (8).

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