Wastewater recycling equipment for corrugated board production

Abstract

The invention discloses waste water recycling equipment for corrugated board production, and relates to the technical field of waste water treatment.The waste water recycling equipment comprises a settling box, a water outlet pipe is fixedly connected to one side of the settling box, a water inlet pipe is fixedly connected to the side, away from the water outlet pipe, of the settling box, and sliding grooves are symmetrically formed in the upper end face of the settling box; the liquid collecting box can be driven to move intermittently and equidistantly on the upper end face of the settling box, a flocculating agent in the liquid collecting box is uniformly sprayed on wastewater in the settling box, the flocculating agent can be uniformly sprayed to all corners of the settling box, and the problem that the local concentration is too high or too low due to direct feeding through a traditional single inlet is solved; the uniform distribution enables the flocculation reaction in the wastewater to be more consistent, and the obvious difference of flocculation effects among different areas is reduced, so that floating matters and suspended matters in the wastewater are more effectively removed, the overall efficiency of wastewater treatment is improved, the quality of the treated wastewater is improved, and the wastewater is more in line with environmental protection standards and subsequent treatment requirements.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to wastewater recycling equipment used in corrugated board production. Background Art

[0002] In the production process of corrugated cardboard, a green and environmentally friendly packaging material, a certain amount of industrial wastewater is inevitably generated. These wastewaters not only contain rich reusable resources, but also bear the great responsibility of environmental protection and sustainable development. In order to actively respond to the call for energy conservation and emission reduction, modern corrugated cardboard manufacturing plants generally introduce advanced wastewater recycling and reuse systems, aiming to efficiently and environmentally friendly treat these wastewaters and achieve the maximum recycling of resources.

[0003] In the refined treatment process of wastewater recycling, the placement and mixing of flocculants are the key links to ensure water purification. The traditional practice is often to pour the flocculant directly into the sedimentation tank through a single inlet, and then rely on the role of the agitator to promote its full integration with the wastewater. The design of the agitator is often based on established process parameters. Its speed, power, and the shape and layout of the agitator blades have a profound impact on the mixing effect. In actual applications, due to the limitations of equipment performance and operating conditions, the agitator is often difficult to achieve an ideal mixing state, which directly leads to extremely uneven distribution of flocculants in wastewater. In some places, due to excessive concentration, Large-sized flocs are formed quickly, and even agglomeration occurs, which hinders the effective sedimentation of suspended matter in the wastewater. In other areas, due to insufficient flocculant concentration, sufficient flocs cannot be formed to capture and remove floating matter, which seriously affects the overall flocculation effect. Moreover, the dosage of flocculant has become a difficult problem that requires precise control. If the dosage is too little, the flocculation effect will be greatly reduced, the floating matter removal effect will be poor, and it will be difficult to achieve the expected purification goal. If the dosage is too much, it will not only cause a huge waste of resources, but also introduce new pollutants due to excessive chemical agents, such as the generation of by-products, which will pose a risk of secondary pollution to the environment.

[0004] Therefore, the present invention proposes a wastewater recycling and reuse device for corrugated board production to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a wastewater recycling and reuse device for corrugated board production, which can effectively solve the problems in the prior art.

[0007] (II) Technical solution

[0008] To achieve the above object, the object of the present invention can be achieved by the following technical solutions:

[0009] A wastewater recycling and reuse device for corrugated cardboard production comprises a sedimentation box, one side of the sedimentation box is fixedly connected to a water outlet pipe, the side of the sedimentation box away from the water outlet pipe is fixedly connected to a water inlet pipe, the upper end surface of the sedimentation box is symmetrically provided with slide grooves, the sedimentation box is provided with a flocculant uniform spraying control mechanism, the flocculant uniform spraying control mechanism is used to quantitatively spray flocculant at various places inside the sedimentation box, a wastewater sedimentation quantitative mechanism is provided between the water inlet pipe and the sedimentation box, the wastewater sedimentation quantitative mechanism is used to control the wastewater sedimentation amount inside the sedimentation box.

[0010] As a further solution of the present invention: the flocculant uniform spraying and control mechanism includes a movable frame, the movable frame is slidably connected in the slide groove, the upper end surface of the movable frame is fixedly connected to a liquid collecting tank, the lower end surface of the liquid collecting tank is fixedly connected to a diversion pipe, and the diversion pipe is fixedly connected to a nozzle at one end away from the liquid collecting tank.

[0011] As a further solution of the present invention: connecting columns are fixedly connected on both sides of the movable frame, and connecting plates are fixedly connected at one end of the connecting columns away from the movable frame. A through groove is opened at the lower end of the connecting plate, and a lever is slidably connected in the through groove.

[0012] As a further solution of the present invention: the lever is fixedly connected to a transmission belt on one side close to the sedimentation box, the transmission belt is symmetrically connected to pulleys inside, a rotating shaft is fixedly connected between the pulleys on both sides, and the rotating shaft passes through the sedimentation box and is rotatably connected.

[0013] As a further solution of the present invention: racks are fixedly connected to the outer surface of the transmission belt at equal intervals, fan gears are arranged under the transmission belt, a driving shaft is fixedly connected between two fan gears, the driving shaft is rotatably connected to the sedimentation box, and the fan gears are meshedly connected to the racks and the transmission belt.

[0014] As a further solution of the present invention: one end of the driving shaft is fixedly connected to a driving motor, the driving motor is fixedly connected to a support frame, the support frame is fixedly connected to the side wall of the sedimentation box, the driving shaft and the outer surface of the rotating shaft are fixedly connected to stirring rods, and the stirring rods are located inside the sedimentation box.

[0015] As a further solution of the present invention: the wastewater sedimentation quantitative mechanism includes a filter channel, the filter channel is fixedly connected to the inner wall of the sedimentation tank close to the water inlet pipe, the filter channel and the water inlet pipe are connected, a filter plate is installed on the side of the filter channel away from the sedimentation tank, a solenoid valve is fixedly connected to the water inlet pipe, a mounting frame is fixedly connected to the upper end face of the sedimentation tank close to the water inlet pipe, a button is fixedly connected to the lower end face of the mounting frame, and the button is electrically connected to the solenoid valve.

[0016] As a further solution of the present invention: vertical grooves are opened on both sides of the filter channel, vertical plates are slidably connected in the vertical grooves, a floating plate is fixedly connected between the lower ends of the two vertical plates, a horizontal plate is fixedly connected between the upper ends of the two vertical plates, a pressing plate is fixedly connected to the side of the horizontal plate close to the mounting frame, and the pressing plate is located below the button.

[0017] As a further solution of the present invention: a connecting block is fixedly connected to the upper side of the filter channel close to the filter plate, a connecting shaft is rotatably connected to the connecting block, a cover plate is fixedly connected to the connecting shaft, a cleaning protrusion and a U-shaped sealing strip are fixedly connected to the cover plate close to the filter channel, a U-shaped groove is provided on the side of the filter channel close to the filter plate, the U-shaped sealing strip and the U-shaped groove are clamped with each other, and the cleaning protrusion and the filter plate are adapted to each other.

[0018] As a further solution of the present invention: both ends of the connecting shaft are fixedly connected with fixed plates, the fixed plates are provided with connecting grooves, cylinders are slidably connected in the connecting grooves, the cylinders are fixedly connected with linkage plates on one side close to the filter channel, and the linkage plates are fixedly connected to the side walls of the vertical plates.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a wastewater recycling device for corrugated board production, which has the following beneficial effects:

[0021] 1. The flocculant uniform spraying control mechanism can drive the liquid collecting box to move intermittently and equidistantly on the upper end surface of the sedimentation box, and evenly spray the flocculant inside the liquid collecting box on the wastewater inside the sedimentation box, which can ensure that the flocculant is evenly sprayed to every corner of the sedimentation box, avoiding the problem of local concentration being too high or too low caused by direct injection from a traditional single inlet. The uniform distribution makes the flocculation reaction in the wastewater more consistent, reduces the significant difference in flocculation effect between different areas, and thus more effectively removes floating matter and suspended matter in the wastewater, improves the overall efficiency of wastewater treatment, and improves the water quality after wastewater treatment, making it more in line with environmental protection standards and subsequent treatment requirements;

[0022] Among them, through the intermittent transmission between the fan gear, rack and transmission belt, the residence time of the liquid collecting box during the intermittent movement can be controlled, so that the liquid collecting box can spray flocculant into the sedimentation tank during the residence process, so as to achieve the effect of controlling the flocculant spraying dosage, which can not only optimize the use of flocculant, avoid the waste of resources caused by excessive addition, reduce the by-products caused by excessive use, and reduce the risk of secondary pollution to the environment, but also ensure that each area in the wastewater can obtain an appropriate amount of flocculant, which is convenient for forming a more uniform and stable floc structure, and improves the efficiency and effect of wastewater treatment.

[0023] 2. Through the stirring rod connected to the outer surface of the driving shaft and the rotating shaft, when the flocculant is sprayed evenly and equidistantly from the collecting tank to the inside of the sedimentation tank, the stirring rod on the surface of the driving shaft can be synchronously driven to continuously stir the sewage, and the stirring rods on the outer surface of the rotating shaft on both sides can be intermittently moved. The continuous stirring of the central stirring rod can ensure the overall flow and mixing of the wastewater in the sedimentation tank, which helps to quickly disperse the flocculant into the entire wastewater. The intermittent stirring of the stirring rods on both sides can produce a stronger stirring effect in the local area, further promoting the mixing of the wastewater and the flocculant, thereby significantly improving the mixing efficiency, so that the pollutants in the wastewater and the flocculant can contact and react more fully.

[0024] 3. The wastewater sedimentation quantitative mechanism can make the floating plate rise synchronously with the rise of wastewater in the sedimentation box. After the floating plate rises to the specified position, the button is automatically pressed to close the solenoid valve, thereby blocking the flow of wastewater in the water inlet pipe and controlling the amount of wastewater in the sedimentation box. It not only avoids the deviation of wastewater inventory caused by the precision limitation of flow control valve and pump equipment, but also does not rely on complex electronic equipment or algorithms, but uses physical principles to achieve natural regulation, which is more stable and reliable. In addition, the precise wastewater flow control can ensure that the set flocculant input amount matches the actual wastewater flow, thereby avoiding the phenomenon of too much or too little flocculant, so as to form a more stable and compact floc structure, improve the flocculation effect of floating objects in wastewater, and thus improve the sedimentation effect;

[0025] Among them, the vertical groove is set up to ensure not only the stability of the floating plate's rise, but also the cooperation between the vertical plate and the vertical groove realizes the precise control of the floating plate's rising trajectory. At the same time, the vertical plate is further driven by the horizontal plate connected between its upper ends to the synchronous vertical rise of the pressing plate, so that the pressing plate can accurately press the button.

[0026] 4. Through the linkage plate, cylinder, fixed plate and connecting shaft, the cover plate can be automatically rotated to cover the water outlet of the filter channel during the process of closing the solenoid valve. The automatic linkage design not only enables the closing of the solenoid valve and the rotation of the cover plate to be completed quickly and accurately, thereby improving the efficiency of wastewater treatment, but also the cover plate rotates to cover the water outlet of the filter channel, which can effectively prevent the wastewater from continuing to flow out after the solenoid valve is closed, thereby improving the overall sealing performance, reducing the risk of wastewater leakage, and avoiding pollution to the environment;

[0027] Among them, when the cover plate rotates to cover the water outlet of the filter channel, it will simultaneously drive the U-shaped sealing strip to be inserted into the U-shaped groove, and make the cleaning protrusions pass through the filter holes on the filter plate, which can not only form a tight sealing structure, but also effectively prevent wastewater from leaking from the water outlet gap after the cover plate is closed, further improving the overall sealing performance and reducing the risk of environmental pollution caused by leakage. Moreover, when the cleaning protrusions pass through the filter holes on the filter plate, impurities and particulate matter in the filter holes can be removed to prevent the filter holes on the filter plate from being blocked, thereby keeping the filter channel unobstructed, improving the filtration efficiency, and enhancing the filtration capacity. In addition, the cleaning protrusions are driven to move by the set cover plate rotation and covering, so that the filter holes can be cleaned regularly, the filtration capacity of the filter plate can be maintained, and the service life of the filter plate can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0031] Figure 3 For the present invention Figure 1 Schematic diagram of the enlarged structure of the middle B area;

[0032] Figure 4 This is a schematic diagram of the connection structure between the drive motor and the pulley of the present invention;

[0033] Figure 5 This is a schematic diagram of the connection structure between the filtration channel and the sedimentation box of the present invention;

[0034] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle C area;

[0035] Figure 7 This is a schematic diagram of the connection structure of the filter channel of the present invention;

[0036] Figure 8 It is a schematic diagram of the connection structure between the vertical plate and the filter channel of the present invention.

[0037] In the figure: 1. Sedimentation tank; 2. Outlet pipe; 3. Inlet pipe;

[0038] 401, mobile frame; 402, liquid collecting box; 403, shunt pipe; 404, nozzle; 405, connecting column; 406, connecting plate; 407, supporting frame; 408, driving motor; 409, pulley; 410, rotating shaft; 411, through groove; 412, lever; 413, rack; 414, driving shaft; 415, sector gear; 416, stirring rod; 417, transmission belt;

[0039] 5. Chute;

[0040] 601, solenoid valve; 602, mounting frame; 603, filter channel; 604, filter plate; 605, U-shaped groove; 606, cover plate; 607, U-shaped sealing strip; 608, connecting shaft; 609, connecting block; 610, fixing plate; 611, connecting groove; 612, cylinder; 613, linkage plate; 614, vertical plate; 615, horizontal plate; 616, pressing plate; 617, button; 618, floating plate; 619, cleaning bumps; 620, vertical groove. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The present embodiment is a wastewater recycling device for corrugated board production, such as Figure 1 - Figure 8 As shown, it includes a sedimentation box 1, one side of the sedimentation box 1 is fixedly connected to a water outlet pipe 2, the side of the sedimentation box 1 away from the water outlet pipe 2 is fixedly connected to a water inlet pipe 3, the upper end surface of the sedimentation box 1 is symmetrically provided with a slide 5, and the sedimentation box 1 is provided with a flocculant uniform spraying control mechanism, which is used to spray the flocculant uniformly at various places inside the sedimentation box 1.

[0043] In this embodiment, Figure 1 As shown, the flocculant uniform spraying control mechanism includes a moving frame 401, the moving frame 401 is slidably connected in the slide 5, the upper end surface of the moving frame 401 is fixedly connected to a liquid collecting box 402, the lower end surface of the liquid collecting box 402 is fixedly connected to a diversion pipe 403, and the diversion pipe 403 is fixedly connected to the end away from the liquid collecting box 402. A nozzle 404 is fixedly connected. When the moving frame 401 slides in the slide 5, it will drive the liquid collecting box 402 to move synchronously, so that the liquid collecting box 402 can spray the flocculant inside into the sedimentation box 1 below through the diversion pipe 403 and the nozzle 404.

[0044] In this embodiment, Figure 1 and Figure 2As shown, connecting columns 405 are fixedly connected on both sides of the mobile frame 401, and connecting plates 406 are fixedly connected to the ends of the connecting columns 405 away from the mobile frame 401. Through grooves 411 are opened at the lower ends of the connecting plates 406, and levers 412 are slidably connected in the through grooves 411. When the levers 412 move, the connecting plates 406 are driven to move synchronously through the through grooves 411, and the connecting columns 405 connected to the upper ends of the connecting plates 406 and the mobile frame 401 between the connecting columns 405 are driven to move horizontally.

[0045] In this embodiment, Figure 4 As shown, the lever 412 is fixedly connected to the side close to the sedimentation box 1 with a transmission belt 417, the interior of the transmission belt 417 is symmetrically connected to the pulley 409, a rotating shaft 410 is fixedly connected between the pulleys 409 on both sides, and the rotating shaft 410 is rotatably connected to the sedimentation box 1. When the transmission belt 417 on the outer surface of the pulley 409 moves, it will drive the lever 412 to move synchronously.

[0046] In this embodiment, Figure 4 As shown, racks 413 are fixedly connected to the outer surface of the transmission belt 417 at equal intervals, and fan gears 415 are arranged under the transmission belt 417. A driving shaft 414 is fixedly connected between the two fan gears 415. The driving shaft 414 penetrates and is rotatably connected to the sedimentation box 1. The fan gears 415 are meshed and connected with the transmission belt 417 through the rack 413. When the driving shaft 414 drives the fan gear 415 to rotate, the fan gear 415 can intermittently move the transmission belt 417 through the rack 413. The design of the fan gear 415 makes the movement of the transmission belt 417 controllable intermittent, thereby realizing precise control of the movement rhythm, and by adjusting the rotation speed of the drive motor 408 and the number of teeth of the fan gear 415, the spraying amount and position can be further precisely controlled to meet different wastewater treatment needs.

[0047] In this embodiment, Figure 4 As shown, one end of the driving shaft 414 is fixedly connected to a driving motor 408, and a support frame 407 is fixedly connected to the driving motor 408. The support frame 407 is fixedly connected to the side wall of the sedimentation tank 1. The driving shaft 414 and the outer surfaces of the rotating shaft 410 are fixedly connected to stirring rods 416, and the stirring rods 416 are all located inside the sedimentation tank 1. When the driving motor 408 is turned on to drive the driving shaft 414 to rotate, the stirring rods 416 on the outer surface of the driving shaft 414 can rotate continuously to stir the sewage, and the rotating shafts 410 on both sides intermittently drive the stirring rods 416 to move, which further promotes the mixing of the wastewater and the flocculant, thereby significantly improving the mixing efficiency, so that the pollutants in the wastewater can contact and react with the flocculant more fully.

[0048] In the prior art, in the process of adding flocculants into wastewater, it is generally added directly into the sedimentation tank from a single inlet, and then the flocculants and wastewater are mixed by an agitator. However, due to factors such as the design, rotation speed and power of the agitator, the stirring effect is often not ideal, resulting in the flocculant being distributed unevenly in the wastewater. This will not only lead to significant differences in the flocculation effects in different areas of the wastewater, but also cause some areas to form too large flocs or produce agglomeration due to excessively high flocculant concentrations, while other areas cannot effectively form flocs due to insufficient flocculants, thereby affecting the overall flocculation effect. In addition, the amount of flocculant added will directly affect the wastewater treatment effect. If the amount added is too little, the flocculation effect will not be obvious, resulting in incomplete removal of floating objects. Too much flocculant dosage will cause waste of resources and even produce by-products, causing secondary pollution to the environment. Compared with the prior art, the liquid collecting box 402 can be driven to move intermittently and equidistantly on the upper end surface of the sedimentation box 1, and the flocculant inside the liquid collecting box 402 can be evenly sprayed on the wastewater inside the sedimentation box 1, which can ensure that the flocculant is evenly sprayed to every corner of the sedimentation box 1, avoiding the problem of excessively high or low local concentration caused by direct injection from a traditional single inlet. The uniform distribution makes the flocculation reaction in the wastewater more consistent, reduces the significant difference in flocculation effect between different areas, and thus more effectively removes floating objects and suspended matter in the wastewater, improves the overall efficiency of wastewater treatment, and improves the water quality after wastewater treatment, making it more in line with environmental protection standards and subsequent treatment requirements;

[0049] Among them, through the intermittent transmission between the fan gear 415, the rack 413 and the transmission belt 417, the residence time of the liquid collecting tank 402 during the intermittent movement can be controlled, so that the liquid collecting tank 402 can spray the flocculant into the sedimentation tank 1 during the residence process, thereby achieving the effect of controlling the flocculant spraying dosage. It can not only optimize the use of flocculant, avoid the waste of resources caused by excessive addition, reduce the by-products produced by excessive use, and reduce the risk of secondary pollution to the environment, but also ensure that each area in the wastewater can obtain an appropriate amount of flocculant, which is convenient for forming a more uniform and stable floc structure, thereby improving the efficiency and effect of wastewater treatment.

[0050] In other aspects, this embodiment also provides a wastewater sedimentation quantitative mechanism for controlling the amount of wastewater sedimentation inside the sedimentation tank 1, such as Figure 3 , Figure 5 - Figure 8As shown, the wastewater sedimentation quantitative mechanism includes a filter channel 603, the filter channel 603 is fixedly connected to the inner wall of the sedimentation box 1 close to the water inlet pipe 3, the filter channel 603 is connected to the water inlet pipe 3, a filter plate 604 is installed on the side of the filter channel 603 away from the sedimentation box 1, the water inlet pipe 3 is fixedly connected to a solenoid valve 601, the upper end face of the sedimentation box 1 close to the water inlet pipe 3 is fixedly connected to a mounting bracket 602, the lower end face of the mounting bracket 602 is fixedly connected to a button 617, and the button 617 and the solenoid valve 601 are electrically connected.

[0051] In this embodiment, Figure 6 and Figure 8 As shown, vertical grooves 620 are provided on both sides of the filtration channel 603, and vertical plates 614 are slidably connected in the vertical grooves 620. A floating plate 618 is fixedly connected between the lower ends of the two vertical plates 614, and a horizontal plate 615 is fixedly connected between the upper ends of the two vertical plates 614. A pressing plate 616 is fixedly connected to the horizontal plate 615 near the side of the mounting frame 602, and the pressing plate 616 is located below the button 617. When the floating plate 618 rises with the rise of sewage, it will push the vertical plates 614 on both sides to slide in the vertical grooves 620, and drive the pressing plate 616 to rise through the horizontal plate 615, press the button 617, trigger the corresponding solenoid valve 601, and realize automatic water level control. This design not only ensures the stability of the rising of the floating plate 618, but also realizes precise control of the rising trajectory of the floating plate 618 through the cooperation of the vertical plate 614 and the vertical groove 620.

[0052] In this embodiment, Figure 3 and Figure 7 As shown, a connecting block 609 is fixedly connected to the upper side of the filter channel 603 near the filter plate 604, a connecting shaft 608 is rotatably connected to the connecting block 609, a cover plate 606 is fixedly connected to the connecting shaft 608, a cleaning protrusion 619 and a U-shaped sealing strip 607 are fixedly connected to the cover plate 606 near the filter channel 603, a U-shaped groove 605 is opened on the side of the filter channel 603 near the filter plate 604, the U-shaped sealing strip 607 and the U-shaped groove 605 are mutually engaged, and the cleaning protrusion 619 and the U-shaped sealing strip 607 are fixedly connected to the cover plate 606 near the filter channel 603. 19 is adapted to the filter plate 604. When the connecting shaft 608 rotates to drive the cover plate 606 to cover the filter channel 603, the U-shaped sealing strip 607 can be driven to be inserted into the U-shaped groove 605, ensuring a tight seal between the filter channel 603 and the cover plate 606, effectively preventing liquid from leaking from the gap, and allowing the cleaning protrusion 619 to pass through the filter holes on the filter plate 604, reducing the tediousness and inconvenience of manual cleaning, and helping to maintain the smooth flow of the filter channel 603 and the stability of the filtering efficiency.

[0053] In this embodiment, Figure 3As shown, both ends of the connecting shaft 608 are fixedly connected with a fixing plate 610, and a connecting groove 611 is opened on the fixing plate 610. A cylinder 612 is slidably connected in the connecting groove 611. The cylinder 612 is fixedly connected with a linkage plate 613 on the side close to the filtering channel 603. The linkage plate 613 is fixedly connected to the side wall of the vertical plate 614. When the vertical plate 614 slides up and down, the linkage plate 613 can drive the cylinder 612 to slide synchronously in the connecting groove 611, and the cylinder 612 can move one end of the linkage plate 613 to drive the connecting shaft 608 to rotate, so that the up and down movement of the vertical plate 614 can be converted into the rotational movement of the connecting shaft 608.

[0054] In the prior art, in the field of wastewater treatment, accurately and correctly introducing wastewater into the sedimentation tank is a basic step to ensure the efficient subsequent flocculation process. At present, this process mainly relies on flow control valves, pumps and highly automated control systems to work together. However, due to the fluctuations in wastewater composition, concentration and flow, as well as the accuracy limitations of the equipment itself, it is difficult to achieve high-precision flow control, which will cause deviations in the wastewater inventory in the sedimentation tank. When the wastewater flow control deviates, the wastewater inventory in the sedimentation tank will fluctuate accordingly. This inaccuracy in inventory directly leads to the dilemma of subsequent flocculant addition. The flocculant dosage originally set based on precise calculations will be excessive or insufficient when the wastewater inventory deviates from expectations. Excessive flocculants will not only fail to fully exert their flocculation effect, but will also produce unnecessary by-products due to excessive chemical reactions, causing additional burdens on the environment. Insufficient flocculants, This will result in the floating objects in the wastewater being unable to be fully flocculated, thereby affecting the overall purification effect. Compared with the prior art, the float plate 618 can rise synchronously with the rise of the wastewater in the sedimentation tank 1. After the float plate 618 rises to the specified position, the button 617 is automatically pressed to close the solenoid valve 601, thereby blocking the flow of wastewater in the water inlet pipe 3 and controlling the amount of wastewater in the sedimentation tank 1. It not only avoids the deviation of the wastewater inventory caused by the accuracy limitation of the flow control valve and pump equipment, but also does not rely on complex electronic equipment or algorithms, but uses physical principles to achieve natural regulation, which is more stable and reliable. Moreover, the precise wastewater flow control can ensure that the set flocculant input amount matches the actual wastewater flow, thereby avoiding the phenomenon of too much or too little flocculant, thereby facilitating the formation of a more stable and compact floc structure, improving the flocculation effect of floating objects in the wastewater, and thus improving the sedimentation effect.

[0055] The working process and principle involved in the overall content of the above embodiment are as follows:

[0056] When the staff needs to recycle the wastewater generated in the production process of corrugated cardboard, they first collect the wastewater generated in the production process of corrugated cardboard to ensure that the wastewater can be centrally treated, then remove the large pieces of dirt in the wastewater, and then discharge the wastewater into the sedimentation tank 1 through the water inlet pipe 3. In the process of the wastewater flowing into the sedimentation tank 1, it will first pass through the filter channel 603, pass through the filter plate 604 installed on the filter channel 603, and be filtered again. After the filtered wastewater enters the sedimentation tank 1, the impurity content is reduced and it can be more It is easy to form sediment, thereby improving the sedimentation effect. When the wastewater accumulates and rises in the sedimentation box 1, it will gradually approach the floating plate 618 set below the water inlet pipe 3. After the wastewater contacts the floating plate 618, as the wastewater continues to rise, the floating plate 618 will be pushed up synchronously by the buoyancy of the floating plate 618, driving the vertical plate 614 symmetrically connected to the upper end surface of the floating plate 618 to slide vertically upward in the vertical groove 620 opened on the side wall of the filter channel 603. At this time, the vertical plate 614 can drive the horizontal plate 615 connected between the upper ends to The pressing plate 616 rises synchronously. When the wastewater in the sedimentation box 1 reaches the specified amount, the wastewater will pass through the floating plate 618, the vertical plate 614 and the horizontal plate 615, driving the pressing plate 616 to rise and press the button 617 connected to the lower end surface of the mounting frame 602. Since the button 617 is electrically connected to the solenoid valve 601, and the solenoid valve 601 is installed on the water inlet pipe 3, after the button 617 is pressed by the pressing plate 616, the solenoid valve 601 will be driven to close, thereby blocking the flow of wastewater in the water inlet pipe 3 and controlling the sedimentation. The amount of wastewater inside the box 1 not only avoids the deviation of the wastewater inventory caused by the precision limitation of the flow control valve and pump equipment, but also does not rely on complex electronic equipment or algorithms, but uses physical principles to achieve natural regulation, so it is more stable and reliable, and the precise wastewater flow control can ensure that the set flocculant input amount matches the actual wastewater flow, thereby avoiding the phenomenon of too much or too little flocculant, so as to facilitate the formation of a more stable and compact floc structure, improve the flocculation effect of floating objects in the wastewater, and thus improve the sedimentation effect;

[0057] In the process of the floating plate 618 pushing the vertical plate 614 up to close the electromagnetic valve 601, the vertical plate 614 will simultaneously drive the linkage plate 613 connected to the side wall to rise synchronously, changing the height of the cylinder 612 connected to the linkage plate 613. As the height of the cylinder 612 changes, the cylinder 612 will synchronously slide in the connecting groove 611 opened on the fixed plate 610, and move one end of the fixed plate 610 upward synchronously. Since the fixed plate 610 is fixedly connected to the connecting shaft 608 away from the end of the cylinder 612, and the connecting shaft 608 is rotatably connected to the connecting block 609, when one end of the fixed plate 610 rises, it will drive the connecting shaft 608 to rotate downward synchronously on the connecting block 609. At this time, the connecting shaft 608 will be closed. During the process of closing the solenoid valve 601, the cover plate 606 is automatically moved to rotate and cover the water outlet of the filter channel 603, which not only realizes the precise control of the position of the cover plate 606, but also transmits sufficient torque through the rotation of the connecting shaft 608, so that the cover plate 606 can smoothly rotate and cover the water outlet of the filter channel 603. The automatic linkage design not only enables the closing of the solenoid valve 601 and the rotation and covering of the cover plate 606 to be completed quickly and accurately, thereby improving the efficiency of wastewater treatment, but also the rotation and covering of the cover plate 606 at the water outlet of the filter channel 603 can effectively prevent the wastewater from continuing to flow out after the solenoid valve 601 is closed, thereby improving the overall sealing performance, reducing the risk of wastewater leakage, and avoiding pollution to the environment.

[0058] When the cover plate 606 rotates to cover the outlet of the filter channel 603, the U-shaped sealing strip 607 connected to the cover plate 606 will be synchronously driven to rotate and snap into the U-shaped groove 605 opened on the side wall of the filter channel 603, forming a tight sealing structure, effectively preventing wastewater from leaking from the gap of the water outlet after the cover plate 606 is closed, further improving the overall sealing performance, and reducing the risk of environmental pollution caused by leakage. In addition, during the process of the U-shaped sealing strip 607 being snapped into the U-shaped groove 605, The cleaning protrusion 619 connected to the side of the cover plate 606 close to the U-shaped sealing strip 607 will be synchronously inserted into the filter hole on the filter plate 604 to remove impurities and particles in the filter hole, prevent the filter hole on the filter plate 604 from being blocked, keep the filter channel 603 unblocked, improve the filtering efficiency, enhance the filtering capacity, and the cover plate 606 is set to rotate and cover to drive the cleaning protrusion 619 to move, so that the filter hole can be cleaned regularly, the filtering capacity of the filter plate 604 can be maintained, and the service life of the filter plate 604 can be extended;

[0059] When the wastewater in the sedimentation tank 1 is concentrated, the staff can turn on the drive motor 408 to drive the drive shaft 414 to rotate on the sedimentation tank 1, so that the fan gear 415 symmetrically connected to the outer surface of the drive shaft 414 rotates synchronously. When the fan gear 415 rotates close to the transmission belt 417, the rack 413 on the outer surface of the transmission belt 417 will move the transmission belt 417, so that the pulley 409 connected to the transmission on both sides of the inner ring surface of the transmission belt 417 rotates, driving the rotating shaft 410 on the pulley 409 to rotate synchronously inside the sedimentation tank 1. When the fan gear 415 rotates away from the transmission belt 417, the transmission belt 417 loses power and stops. The lever 412 is fixedly connected to the side wall of the transmission belt 417, so the lever 412 will move synchronously with the transmission belt 417. When the lever 412 moves horizontally with the transmission belt 417, it will drive the connecting plate 406 to move horizontally synchronously through the through groove 411. When the lever 412 moves around the pulley 409 with the transmission belt 417, the lever 412 will slide up and down synchronously in the through groove 411 opened on the connecting plate 406 during the process of driving the connecting plate 406 to move horizontally. When the connecting plate 406 moves horizontally with the lever 412, the connecting plate 406 is connected to the connecting column 405 at one end away from the lever 412. 05 is fixedly connected to the side wall of the mobile frame 401, so the connecting plate 406 will drive the mobile frame 401 to move horizontally in the slide slot 5 synchronously through the connecting column 405, and the transmission belt 417 is affected by the movement of the rack 413 driven by the sector gear 415, which will make the mobile frame 401 slide in the slide slot 5. It will slide synchronously and equidistantly and intermittently, driving the liquid collecting box 402 connected to the upper end of the mobile frame 401 to move horizontally synchronously, so that the connecting plate 406 and the mobile frame 401 can move equidistantly and intermittently according to the predetermined trajectory and speed, thereby ensuring the uniform spraying of the flocculant in the liquid collecting box 402. By adjusting the speed of the driving motor 408 and the sector gear 41 The number of teeth of 5 can further accurately control the spraying amount and position to meet different wastewater treatment needs. The collecting box 402 evenly sprays the internal flocculant in the sedimentation box 1 through the shunt pipe 403 and the nozzle 404, and can also ensure that the flocculant is evenly sprayed to every corner of the sedimentation box 1, avoiding the problem of local concentration being too high or too low caused by direct injection from a traditional single inlet. The uniform distribution makes the flocculation reaction in the wastewater more consistent, reduces the significant difference in flocculation effect between different areas, and thus more effectively removes floating objects and suspended matter in the wastewater, improves the overall efficiency of wastewater treatment, and improves the water quality after wastewater treatment, making it more in line with environmental protection standards and subsequent treatment requirements;

[0060] In the process of the movable frame 401 driving the liquid collecting box 402 to move at an interval and at equal intervals, the time for the liquid collecting box 402 to spray the flocculant through the shunt pipe 403 and the nozzle 404 can be set in the interval when the movable frame 401 stops moving, so that the liquid collecting box 402 can spray the flocculant into the sedimentation box 1 during the stay process, so as to achieve the effect of controlling the flocculant spraying dosage, which can not only optimize the use amount of the flocculant, avoid the waste of resources caused by excessive addition, reduce the by-products generated by excessive use, and reduce the risk of secondary pollution to the environment, but also ensure that each area in the wastewater can obtain an appropriate amount of flocculant, so as to form a more uniform and stable floc structure, thereby improving the efficiency and effect of wastewater treatment;

[0061] When the motor drives the drive shaft 414 to rotate and drives the rotating shaft 410 to rotate intermittently through the sector gear 415, the rack 413, the transmission belt 417 and the pulley 409, the driving shaft 414 and the stirring rod 416 connected to the outer surface of the rotating shaft 410 will rotate synchronously inside the sedimentation tank 1 to stir the sewage. The continuous stirring of the central stirring rod 416 can ensure the overall flow and mixing of the wastewater in the sedimentation tank 1, which helps to quickly disperse the flocculant into the entire wastewater. The intermittent stirring of the stirring rods 416 on both sides can produce a stronger stirring effect in the local area, further promoting the mixing of the wastewater and the flocculant, thereby significantly improving the mixing efficiency, so that the pollutants in the wastewater and the flocculant can contact and react more fully.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater recycling and reuse device for corrugated board production, comprising a sedimentation tank (1), one side of the sedimentation tank (1) is fixedly connected to a water outlet pipe (2), and the side of the sedimentation tank (1) away from the water outlet pipe (2) is fixedly connected to a water inlet pipe (3), characterized in that: The upper end surface of the sedimentation box (1) is symmetrically provided with a slide groove (5); The sedimentation tank (1) is provided with a flocculant uniform spraying control mechanism, and the flocculant uniform spraying control mechanism is used to quantitatively spray the flocculant at various locations inside the sedimentation tank (1); A wastewater sedimentation quantitative mechanism is provided between the water inlet pipe (3) and the sedimentation tank (1), and the wastewater sedimentation quantitative mechanism is used to control the amount of wastewater sedimentation inside the sedimentation tank (1).

2. The wastewater recycling equipment for corrugated board production according to claim 1 is characterized in that: The flocculant uniform spraying and quantity control mechanism comprises a movable frame (401), the movable frame (401) is slidably connected in a slide groove (5), the upper end surface of the movable frame (401) is fixedly connected to a liquid collecting box (402), the lower end surface of the liquid collecting box (402) is fixedly connected to a diversion pipe (403), and the end of the diversion pipe (403) away from the liquid collecting box (402) is fixedly connected to a spray head (404).

3. The wastewater recycling equipment for corrugated board production according to claim 2 is characterized in that: Both sides of the movable frame (401) are fixedly connected with connecting columns (405), and one end of the connecting column (405) away from the movable frame (401) is fixedly connected with a connecting plate (406). The lower end of the connecting plate (406) is provided with a through groove (411), and a lever (412) is slidably connected in the through groove (411).

4. The wastewater recycling equipment for corrugated board production according to claim 3 is characterized in that: The lever (412) is fixedly connected to a transmission belt (417) on one side close to the sedimentation box (1), the transmission belt (417) is symmetrically connected to pulleys (409) inside, a rotating shaft (410) is fixedly connected between the pulleys (409) on both sides, and the rotating shaft (410) penetrates and is rotatably connected to the sedimentation box (1).

5. The wastewater recycling equipment for corrugated board production according to claim 4 is characterized in that: The outer surface of the transmission belt (417) is fixedly connected with racks (413) at equal intervals, and a sector gear (415) is arranged below the transmission belt (417). A driving shaft (414) is fixedly connected between two sector gears (415), and the driving shaft (414) is rotatably connected to the sedimentation box (1). The sector gears (415) are meshedly connected with the racks (413) and the transmission belt (417).

6. The wastewater recycling equipment for corrugated board production according to claim 5 is characterized in that: One end of the driving shaft (414) is fixedly connected to a driving motor (408), the driving motor (408) is fixedly connected to a support frame (407), the support frame (407) is fixedly connected to the side wall of the sedimentation box (1), and the outer surfaces of the driving shaft (414) and the rotating shaft (410) are fixedly connected to stirring rods (416), and the stirring rods (416) are located inside the sedimentation box (1).

7. The wastewater recycling equipment for corrugated board production according to claim 1 is characterized in that: The wastewater sedimentation quantitative mechanism comprises a filtering channel (603), the filtering channel (603) being fixedly connected to the inner wall of the sedimentation box (1) on a side close to the water inlet pipe (3), the filtering channel (603) being in communication with the water inlet pipe (3), a filter plate (604) being installed on the side of the filtering channel (603) away from the sedimentation box (1), a solenoid valve (601) being fixedly connected to the water inlet pipe (3), a mounting frame (602) being fixedly connected to the upper end surface of the sedimentation box (1) on a side close to the water inlet pipe (3), a button (617) being fixedly connected to the lower end surface of the mounting frame (602), and the button (617) being electrically connected to the solenoid valve (601).

8. The wastewater recycling equipment for corrugated board production according to claim 7 is characterized in that: Vertical grooves (620) are provided on both sides of the filtering channel (603), and vertical plates (614) are slidably connected in the vertical grooves (620). A floating plate (618) is fixedly connected between the lower ends of the two vertical plates (614), and a horizontal plate (615) is fixedly connected between the upper ends of the two vertical plates (614). A pressing plate (616) is fixedly connected to the side of the horizontal plate (615) close to the mounting frame (602), and the pressing plate (616) is located below the button (617).

9. The wastewater recycling equipment for corrugated board production according to claim 8, characterized in that: A connecting block (609) is fixedly connected to the upper side of the filter channel (603) close to the filter plate (604); a connecting shaft (608) is rotatably connected to the connecting block (609); a cover plate (606) is fixedly connected to the connecting shaft (608); a cleaning protrusion (619) and a U-shaped sealing strip (607) are fixedly connected to the cover plate (606) close to the filter channel (603); a U-shaped groove (605) is provided on the side of the filter channel (603) close to the filter plate (604); the U-shaped sealing strip (607) and the U-shaped groove (605) are mutually engaged; and the cleaning protrusion (619) and the filter plate (604) are adapted to each other.

10. The wastewater recycling equipment for corrugated board production according to claim 1, characterized in that: Both ends of the connecting shaft (608) are fixedly connected to a fixing plate (610), and a connecting groove (611) is provided on the fixing plate (610). A cylinder (612) is slidably connected in the connecting groove (611), and a linkage plate (613) is fixedly connected to the side of the cylinder (612) close to the filtering channel (603), and the linkage plate (613) is fixedly connected to the side wall of the vertical plate (614).

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