Efficient recycling device for clean papermaking wastewater

Abstract

The invention relates to the technical field of papermaking wastewater recycling devices, in particular to a clean papermaking wastewater efficient recycling device which comprises a flow guide groove, a water inlet is formed in the upper end of the flow guide groove, a half gear is rotationally arranged on one side of the flow guide groove, a rotating shaft is rotationally arranged in the flow guide groove, and a flow guide plate is connected to the outer side of the rotating shaft. According to the papermaking wastewater treatment device disclosed by the invention, after papermaking wastewater enters the diversion trench through the water inlet, the papermaking wastewater is guided through swinging of the two sides of the diversion plate, so that the papermaking wastewater is uniformly guided through the diversion plate; papermaking wastewater is uniformly distributed on the surface of the first filter screen, slow water flow speed caused by excessive accumulation of local papermaking wastewater is avoided, stable filtering efficiency is guaranteed, meanwhile, paper pulp is uniformly distributed on one side of the first filter screen, and the situation that the first filter screen is overloaded due to overlarge local pressure, paper pulp loss is caused, and the recovery effect is reduced is prevented.

Description

Technical Field

[0001] This invention relates to the technical field of papermaking wastewater recycling devices, specifically a clean papermaking wastewater efficient recycling device. Background Technology

[0002] The papermaking industry generates a large amount of wastewater during production. This wastewater has a complex composition and contains a large amount of pollutants such as pulp fiber, lignin, inorganic salts and various additives. If discharged directly, it will not only cause serious pollution to water bodies and damage the ecological environment, but also lead to the waste of recyclable resources such as pulp. Traditional wastewater separation devices often experience partial clogging of the filter screen during filtration due to the large amount of pulp or other impurities in the papermaking wastewater. When the volume of papermaking wastewater is excessive, the impurities can quickly clog the filter screen, resulting in a slower water flow rate and greater pressure on the filter screen during filtration, which can lead to excessive local pressure and overload. Summary of the Invention

[0003] In this invention, after papermaking wastewater enters the guide channel through the inlet, it is guided by the swinging of the guide plates on both sides. This ensures that the wastewater is evenly distributed on the surface of the first filter screen, preventing excessive accumulation of wastewater in certain areas from slowing down the flow rate and ensuring stable filtration efficiency. At the same time, it ensures that the pulp is evenly distributed on one side of the first filter screen, preventing the first filter screen from being overloaded due to excessive local pressure, which could cause pulp loss and reduce the recycling effect.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency recycling device for clean papermaking wastewater, comprising a guide channel, wherein an inlet is provided at the upper end of the guide channel, a half gear is rotatably provided on one side of the guide channel, a rotating shaft is rotatably provided inside the guide channel, a guide plate is connected to the outside of the rotating shaft, and a first filter screen is provided on both sides of the guide plate, and the two sets of first filter screens are connected to the inner wall of the guide channel; One end of the rotating shaft is connected to a connecting rod, and the other end of the connecting rod is connected to a second filter plate. The second filter plate slides horizontally inside the guide channel driven by the rotating shaft. A collection groove slides on one side of both sets of first filter screens. A first guide tube is provided on one side of the half gear. A reciprocating screw rotates inside the first guide tube. A piston is threadedly connected to the outside of the reciprocating screw. One end of the first guide tube is connected to a storage tank. Two sets of second guide tubes are connected to the outside of the storage tank. One end of the second guide tube is connected to a compression block. Both sets of second guide tubes are equipped with pressure relief ports on their outer sides.

[0005] Preferably, a motor is installed on one side of the guide channel, and a rotating rod is connected to the output end of the motor. The end of the rotating rod away from the motor is connected to a half gear. A gear A meshes with one side of the half gear. A rotating shaft is connected to one end of the gear A, and the other end of the rotating shaft extends through the guide channel to the other side.

[0006] Preferably, one end of the gear A is connected to a first spring, and the other end of the first spring is connected to the outer wall of the guide channel. The guide plate is located inside the guide channel and at the center of the inlet. Multiple sets of insert rods are fixedly connected to the side of the second filter plate near the first filter screen, and the outer diameter of the multiple sets of insert rods matches the size of the filter holes inside the first filter screen.

[0007] Preferably, the other end of the rotating shaft is connected to two sets of connecting rods. The two sets of connecting rods are located outside the guide groove, and the connecting rods are composed of two sets of connecting rods rotatably connected. The other end of each set of connecting rods is movably connected to a connecting block. Two sets of guide grooves are opened on one side of the guide groove. The connecting block is located inside the guide groove, and the outer diameter of the connecting block matches the inner diameter of the guide groove. The other end of the guide groove is fixedly connected to the second filter plate.

[0008] Preferably, a gear B meshes with the other side of the half gear, one end of the gear B is rotatably connected to the outer wall of the guide groove, the other end of the gear B is connected to a reciprocating lead screw, a bracket is connected to the outside of the first guide tube, and the other end of the bracket is connected to the outer wall of the storage tank.

[0009] Preferably, one end of the first guide tube is fixedly connected to a connecting tube A, the other end of the connecting tube A is connected to the storage tank, two sets of connecting tubes B are connected to the outside of the storage tank, the other ends of the two sets of connecting tubes B are connected to the second guide tube, and a pressure valve is provided at the connection between the connecting tube B and the storage tank.

[0010] Preferably, a push rod is movably connected inside the second guide tube. The push rod extends through the guide groove and into the interior. One end of the push rod located inside the guide groove is fixedly connected to the extrusion block.

[0011] Preferably, a through hole is provided on one side of the guide channel, the collection channel is located inside the through hole, a second spring is connected to one end of the collection channel, a fixing frame is connected to one end of the second spring, and the other end of the fixing frame is connected to the guide channel.

[0012] Preferably, the other end of the push rod is connected to a third spring, and the other end of the third spring is connected to the inner wall of the second guide tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are: In this invention, after papermaking wastewater enters the guide channel through the inlet, it is guided by the swinging of the guide plates on both sides. This guide plates evenly distribute the wastewater across the surfaces of the two sets of first filter screens, preventing excessive accumulation of wastewater in certain areas from slowing down the flow rate and ensuring stable filtration efficiency. At the same time, it ensures that the pulp is evenly distributed on one side of the first filter screen, preventing the first filter screen from being overloaded due to excessive local pressure, which could lead to pulp loss and reduced recycling efficiency.

[0014] In use, this invention filters papermaking wastewater through the combined action of a first filter screen and a second filter plate. When the second filter plate comes into contact with the first filter screen, multiple sets of inserts on one side of the second filter plate penetrate the filter holes inside the first filter screen, thereby clearing the pulp and impurities clogging the filter holes. This promptly removes the pulp and impurities from the filter holes, preventing a decrease in water flow rate due to filter hole blockage and ensuring a continuous and efficient filtration process. It also prevents incomplete filtration caused by filter hole blockage, allowing more impurities to be effectively intercepted, improving the cleanliness of the effluent, and automatically clearing blockages, reducing the frequency of manual disassembly and cleaning of the filter screen, thus saving manpower and time costs.

[0015] When using the equipment, this invention automatically cleans the pulp and impurities accumulated at the lower end of the first filter screen at regular intervals. This prevents the pulp and impurities from hardening and clogging the channel below the first filter screen after long-term accumulation, ensuring that wastewater can flow smoothly through the filter screen and maintaining the flow of the filtration system. At the same time, timely removal of accumulated materials reduces the additional pressure and filtration resistance on the first filter screen, ensuring that the first filter screen always maintains a high filtration speed and interception effect, and avoiding a decrease in filtration efficiency due to accumulation. Attached Figure Description

[0016] Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is a structural diagram of the internal structure of the guide channel of the present invention; Figure 4 This is one of the structural diagrams of the present invention; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is one of the partial structural cross-sectional views of the present invention; Figure 7 This is a second partial structural cross-sectional view of the present invention.

[0017] In the diagram: 1. Guide channel; 2. Motor; 3. Half gear; 4. Gear A; 5. Rotating shaft; 6. First spring; 7. Guide plate; 8. First filter screen; 9. Second filter plate; 10. Insert rod; 11. Connecting rod; 12. Connecting block; 13. Guide channel; 14. Collection channel; 15. Second spring; 16. Fixing frame; 17. Gear B; 18. Reciprocating screw; 19. First guide tube; 20. Piston; 21. Connecting tube A; 22. Storage tank; 23. Connecting tube B; 24. Second guide tube; 25. Pressure relief port; 26. Push rod; 27. Extrusion block; 28. Third spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Reference Figures 1-7 The present invention provides a device for efficient recycling of clean papermaking wastewater, including a guide channel 1, with an inlet at the upper end of the guide channel 1, a half gear 3 rotating on one side of the guide channel 1, a rotating shaft 5 rotating inside the guide channel 1, a guide plate 7 connected to the outside of the rotating shaft 5, and a first filter screen 8 on both sides of the guide plate 7, with the two sets of first filter screens 8 connected to the inner wall of the guide channel 1. One end of the rotating shaft 5 is connected to the connecting rod 11, and the other end of the connecting rod 11 is connected to the second filter plate 9. The second filter plate 9 is driven by the rotating shaft 5 to slide horizontally inside the guide channel 1. Both sets of first filter screens 8 have a collection groove 14 sliding on one side. A first guide tube 19 is provided on one side of the half gear 3. A reciprocating screw 18 rotates inside the first guide tube 19. A piston 20 is threadedly connected to the outside of the reciprocating screw 18. One end of the first guide tube 19 is connected to a storage tank 22. Two sets of second guide tubes 24 are connected to the outside of the storage tank 22. One end of the second guide tube 24 is connected to a compression block 27. Both sets of second guide tubes 24 are equipped with pressure relief ports 25 on their outer sides.

[0020] In an optional embodiment, a motor 2 is installed on one side of the guide channel 1. A rotating rod is connected to the output end of the motor 2. The end of the rotating rod away from the motor 2 is connected to a half gear 3. A gear A4 meshes with one side of the half gear 3. A rotating shaft 5 is connected to one end of the gear A4. The other end of the rotating shaft 5 extends through the guide channel 1 to the other side. Before using the equipment, papermaking wastewater is diverted into the guide channel 1 through the inlet. When using the equipment, the motor 2 is started. After the motor 2 is started, the motor 2 will drive the half gear 3 to rotate through the rotating rod. The speed at which the motor 2 drives the half gear 3 to rotate is relatively slow. When the half gear 3 rotates, it will synchronously drive the gear A4 to rotate. When the gear A4 rotates, it will synchronously drive the rotating shaft 5 to rotate. Because the half gear 3 is a half-tooth design, after the half gear 3 drives the gear A4 to rotate a certain angle, the half gear 3 will disengage from the gear A4.

[0021] In an optional embodiment, one end of gear A4 is connected to a first spring 6, and the other end of the first spring 6 is connected to the outer wall of the guide channel 1. The guide plate 7 is located inside the guide channel 1 and at the center of the inlet. Multiple sets of insert rods 10 are fixedly connected to the side of the second filter plate 9 near the first filter screen 8, and the outer diameter of the multiple sets of insert rods 10 matches the size of the filter holes inside the first filter screen 8. Therefore, when the rotating shaft 5 rotates, it synchronously drives the guide plate 7 to flip to one side. Simultaneously, when gear A4 rotates, it synchronously drives the first spring 6 to retract. The first spring 6 has a large elastic force, so that when the half gear 3 disengages from gear A4, the gear… The limit of A4 is removed, so gear A4 will quickly spring back to its original position by the elastic force of the first spring 6. When gear A4 resets, it will simultaneously drive the guide plate 7 to reset. At this time, when the guide plate 7 resets by the force of the first spring 6, gear A4 will rotate to the other side again due to inertia, thereby driving the guide plate 7 to swing inside the guide channel 1. Since the speed at which the motor 2 drives the half gear 3 to rotate is relatively slow, gear A4 can avoid contact with the half gear 3 when it resets by the first spring 6, thus avoiding the phenomenon of not being able to reset. At the same time, because the elastic force of the first spring 6 is large, the guide plate 7 will not be unable to reset due to the impact force of the water flow when it resets. When the guide plate 7 swings to the other side to reset, the half gear 3 will drive the gear A4 to rotate again, and so on. After the papermaking wastewater enters the guide channel 1 through the inlet, it will be guided by the swinging of the two sides of the guide plate 7 to prevent the water from accumulating on one side, which would cause the pulp in the papermaking wastewater to accumulate more on the side of the first filter screen 8 and slow down the water flow. Thus, the guide plate 7 will guide the papermaking wastewater evenly, so that the papermaking wastewater is evenly distributed on the surface of the two sets of first filter screens 8. This avoids the slowing down of the water flow due to excessive accumulation of papermaking wastewater in a local area, and ensures stable filtration efficiency. At the same time, it makes the pulp evenly distributed on the side of the first filter screen 8, preventing the first filter screen 8 from being overloaded due to excessive local pressure, causing pulp loss and reducing the recycling effect. Alternatively, depending on the actual situation, the staff can drive the half gear 3 to rotate a certain angle via motor 2 and then turn off motor 2. When the half gear 3 rotates, it will synchronously drive gear A4 to rotate a certain angle. At this time, gear A4 will be limited by the half gear 3, and thus gear A4 cannot rotate. This will cause the guide plate 7 to shift to one side, causing the water source to flow to one side due to the deflection of the guide plate 7. It will only be filtered through the first filter screen 8 on one side. This reduces the usage rate of the first filter screen 8 on the other side when the flow rate of papermaking wastewater is small, and also reduces the cleaning burden on the staff later. In addition, when gear A4 is limited by the half gear 3 and cannot rotate, the angle at which the guide plate 7 shifts to one side is small. At this time, the filter holes on the first filter screen 8 do not contact the multiple sets of insert rods 10, so it does not affect the filtration work of the first filter screen 8 on one side.

[0022] In an optional embodiment, the other end of the rotating shaft 5 is connected to two sets of connecting rods 11. The two sets of connecting rods 11 are located outside the guide channel 1, and the connecting rods 11 are composed of two sets of connecting rods rotatably connected. The other end of each set of connecting rods 11 is movably connected to a connecting block 12. Two sets of guide grooves 13 are opened on one side of the guide channel 1. The connecting block 12 is located inside the guide groove 13, and the outer diameter of the connecting block 12 matches the inner diameter of the guide groove 13. The other end of the guide groove 13 is fixedly connected to the second filter plate 9. As described above, when the gear A4 reciprocates under the action of the half gear 3 and the first spring 6, it will synchronously drive the rotating shaft 5 to reciprocate. When reciprocating, it will synchronously drive the two sets of connecting rods 11 to rotate. When the rotating shaft 5 rotates and drives one end of the connecting rod 11 to deviate, the other end of the connecting rod 11 will move synchronously. When the connecting rod 11 moves, it will synchronously pull the connecting block 12 to move. Since the connecting block 12 is fixedly connected to the second filter plate 9 and the connecting block 12 is guided by the guide groove 13, and the outer diameter of the second filter plate 9 matches the inner diameter of the guide groove 1, the second filter plate 9 will move in a horizontal posture, so that the second filter plate 9 contacts the first filter screen 8. After one set of second filter plates 9 contacts the first filter screen 8, it will cause the second filter plate 9 on the other side to move away from the first filter screen 8. The insertion rod 10 avoids the filter holes of the second filter plate 9 during installation, so the insertion rod 10 will not affect the filtration effect of the second filter plate 9. In use, the papermaking wastewater will be filtered by the dual action of the first filter screen 8 and the second filter plate 9. When the second filter plate 9 comes into contact with the first filter screen 8, multiple sets of insertion rods 10 on one side of the second filter plate 9 will penetrate the filter holes inside the first filter screen 8, thereby clearing the pulp and impurities blocked inside the filter holes of the first filter screen 8. This timely removal of pulp and impurities from the filter holes of the first filter screen 8 prevents the filter holes from clogging and causing a decrease in water flow rate, ensuring that the filtration process continues to be efficient. At the same time, it prevents the problem of incomplete filtration caused by filter hole clogging, allowing more impurities to be effectively intercepted, improving the cleanliness of the effluent, and automatically clearing blockages, reducing the frequency of manual disassembly and cleaning of the filter screen, saving manpower and time costs.

[0023] In an optional embodiment, a gear B17 meshes with the other side of the half gear 3. One end of the gear B17 is rotatably connected to the outer wall of the guide groove 1, and the other end of the gear B17 is connected to a reciprocating screw 18. A bracket is connected to the outside of the first guide tube 19, and the other end of the bracket is connected to the outer wall of the storage tank 22. When the half gear 3 rotates, it will synchronously drive the gear B17 to rotate. When the gear B17 rotates, it will synchronously drive the reciprocating screw 18 to rotate. When the reciprocating screw 18 rotates, it will drive the piston 20 to reciprocate inside the first guide tube 19. When the piston 20 reciprocates, it will continuously deliver air pressure to the rear end of the first guide tube 19.

[0024] In an optional embodiment, one end of the first guide tube 19 is fixedly connected to a connecting tube A21, and the other end of the connecting tube A21 is connected to the storage tank 22. Two sets of connecting tubes B23 are connected to the outside of the storage tank 22, and the other ends of the two sets of connecting tubes B23 are connected to the second guide tube 24. A pressure valve is provided at the connection between the connecting tube B23 and the storage tank 22. As described above, the air pressure entering the rear end of the first guide tube 19 will enter the storage tank 22 through the connecting tube A21. After the air pressure enters the storage tank 22, it will gradually increase the air pressure inside the storage tank 22. After the air pressure inside the storage tank 22 gradually increases to a certain amount, the pressure valve at the connection between the storage tank 22 and the connecting tube B23 will open. At this time, the air pressure inside the storage tank 22 will quickly enter the two sets of second guide tubes 24 through the two sets of connecting tubes B23.

[0025] In an optional embodiment, a push rod 26 is movably connected inside the second guide tube 24. The push rod 26 extends through the guide groove 1 and into the interior. One end of the push rod 26 inside the guide groove 1 is fixedly connected to the extrusion block 27. After the air pressure enters the interior of the second guide tube 24, because the pressure relief port 25 is small, the air pressure will quickly enter the interior of the second guide tube 24 and push the push rod 26 outward. When the push rod 26 is pushed outward, it will simultaneously push the extrusion block 27 to move.

[0026] In an optional embodiment, a through hole is provided on one side of the guide channel 1, and a collection channel 14 is located inside the through hole. A second spring 15 is connected to one end of the collection channel 14, and a fixing bracket 16 is connected to one end of the second spring 15. The other end of the fixing bracket 16 is connected to the guide channel 1. As described above, when the extrusion block 27 moves, it will move along one side of the first filter screen 8. As the extrusion block 27 moves, it will push the impurities and pulp accumulated on one side of the first filter screen 8 to one side. After the extrusion block 27 moves to a certain position, it will contact the collection channel 14. At this time, because the inside of the collection channel 14 is hollow and a second spring 15 is provided at one end of the collection channel 14, the extrusion block 27 pushes the impurities and pulp into the inside of the collection channel 14. Then, through the bidirectional force of the squeezing block 27 and the second spring 15, the water in the pulp and impurities will be squeezed out. As the squeezing block 27 pushes the second spring 15 to continuously contract, the hollow part of the collection tank 14 will gradually move outward. When the push rod 26 is fully extended, part of the hollow part inside the collection tank 14 will be located outside the guide channel 1, and the collection tank 14 will not be completely pushed out of the guide channel 1. The outer diameter of the squeezing block 27 matches the inner diameter of the collection tank 14, and the outer diameter of the collection tank 14 matches the through hole. Therefore, when the hollow part of the collection tank 14 is located outside the guide channel 1, the water inside the guide channel 1 will not flow outward through the through hole. There is a damping force between the collection tank 14 and the through hole.

[0027] In an optional embodiment, the other end of the push rod 26 is connected to a third spring 28, and the other end of the third spring 28 is connected to the inner wall of the second guide tube 24. After the push rod 26 is fully extended, as the air pressure inside the second guide tube 24 gradually leaks out through the pressure relief port 25, the push rod 26 will gradually reset under the force of the third spring 28. When the push rod 26 resets, it will simultaneously drive the squeezing block 27 to reset. When the squeezing block 27 resets, its collecting groove 14 will reset synchronously through the second spring 15. When the collecting groove 14 resets, the damping force between the collecting groove 14 and the through hole will cause the collecting groove 14 to reset more slowly than the squeezing block 27. At this time, the empty trough is located outside the guide trough 1. When the squeezed impurities and pulp lose the squeezing force on one side, they will fall to the outside of the guide trough 1. During equipment use, the pulp and impurities accumulated at the lower end of the first filter screen 8 will be automatically cleaned every once in a while. This prevents the pulp and impurities from hardening and clogging the channel below the first filter screen 8 after long-term accumulation. This ensures that the wastewater can flow smoothly through the filter screen and maintain the flow of the filtration system. At the same time, timely removal of accumulated materials reduces the additional pressure and filtration resistance on the first filter screen 8, ensuring that the first filter screen 8 always maintains a high filtration speed and interception effect, and avoiding a decrease in filtration efficiency due to accumulation.

[0028] Working principle: When using the equipment, start motor 2. After motor 2 starts, motor 2 will drive half gear 3 to rotate through the rotating rod. The speed at which motor 2 drives half gear 3 to rotate is relatively slow. When half gear 3 rotates, it will synchronously drive gear A4 to rotate. When gear A4 rotates, it will synchronously drive rotating shaft 5 to rotate. Because half gear 3 is a half-tooth design, after half gear 3 drives gear A4 to rotate a certain angle, half gear 3 will disengage from gear A4. When the rotating shaft 5 rotates, it will simultaneously drive the guide plate 7 to flip to one side. At the same time, when the gear A4 rotates, it will simultaneously drive the first spring 6 to rewind. The first spring 6 has a large elastic force, so when the half gear 3 disengages from the gear A4, the limit of gear A4 is canceled. As a result, gear A4 will quickly spring back to its original position by the elastic force of the first spring 6. When gear A4 resets, it will simultaneously drive the guide plate 7 to reset. At this time, when the guide plate 7 resets by the force of the first spring 6, gear A4 will rotate to the other side again due to inertia, thereby driving the guide plate 7 to swing inside the guide channel 1. When the guide plate 7 swings to the other side to reset, the half gear 3 will drive gear A4 to rotate again. This process is repeated. After the papermaking wastewater enters the guide channel 1 through the inlet, it will be guided by the swinging of the two sides of the guide plate 7. When gear A4 reciprocates under the action of half gear 3 and the first spring 6, it synchronously drives the rotating shaft 5 to reciprocate. When the guide plate 7 reciprocates, it synchronously drives the two sets of connecting rods 11 to rotate. When the rotating shaft 5 rotates and causes one end of the connecting rod 11 to deviate, the other end of the connecting rod 11 will move synchronously. When the connecting rod 11 moves, it will synchronously pull the connecting block 12 to move. Because the connecting block 12 is fixedly connected to the second filter plate 9 and is guided by the guide groove 13, and the outer diameter of the second filter plate 9 matches the inner diameter of the guide groove 1. Then the second filter plate 9 will move horizontally, so that the second filter plate 9 comes into contact with the first filter screen 8. After one set of second filter plates 9 comes into contact with the first filter screen 8, it will cause the second filter plate 9 on the other side to move away from the first filter screen 8. In use, papermaking wastewater will be filtered by the dual action of the first filter screen 8 and the second filter plate 9. When the second filter plate 9 comes into contact with the first filter screen 8, multiple sets of insert rods 10 on one side of the second filter plate 9 will penetrate the filter holes inside the first filter screen 8, thereby clearing the pulp and impurities blocked inside the filter holes of the first filter screen 8. When the half gear 3 rotates, it will synchronously drive the gear B17 to rotate. When the gear B17 rotates, it will synchronously drive the reciprocating screw 18 to rotate. When the reciprocating screw 18 rotates, it will drive the piston 20 to reciprocate inside the first guide tube 19. When the piston 20 reciprocates, it will continuously deliver air pressure to the rear end of the first guide tube 19. The air pressure entering the rear end of the first guide tube 19 will enter the storage tank 22 through the connecting pipe A21. After the air pressure enters the storage tank 22, it will gradually increase the air pressure inside the storage tank 22. After the air pressure inside the storage tank 22 gradually increases to a certain amount, the air pressure valve at the connection between the storage tank 22 and the connecting pipe B23 will open. At this time, the air pressure inside the storage tank 22 will quickly enter the two sets of second guide tubes 24 through the two sets of connecting pipes B23. After air pressure enters the second guide tube 24, due to the small size of the pressure relief port 25, the rapid entry of air pressure into the second guide tube 24 will squeeze the push rod 26 outward. As the push rod 26 pushes outward, it simultaneously pushes the squeezing block 27 to move. As the squeezing block 27 moves, it moves along one side of the first filter screen 8. With the movement of the squeezing block 27, it pushes the impurities and pulp accumulated on one side of the first filter screen 8 to one side. After the squeezing block 27 moves to a certain position, it will contact the collection tank 14. Since the inside of the collection tank 14 is partially hollow and one end of the collection tank 14 is equipped with a second spring 15, after the squeezing block 27 pushes the impurities and pulp into the collection tank 14, the pressure from the squeezing block 27 and the second spring 15... The bidirectional force of spring 15 will squeeze the water in the pulp and impurities. As the squeezing block 27 pushes the second spring 15 to continuously contract, the hollow part of the collection groove 14 will gradually move outward. When the push rod 26 is fully extended, part of the hollow part inside the collection groove 14 will be located outside the guide groove 1. When the squeezing block 27 resets, its collection groove 14 will be reset synchronously through the second spring 15. When the collection groove 14 is reset, the damping force between the collection groove 14 and the through hole will cause the collection groove 14 to reset slower than the squeezing block 27. Thus, when the squeezing block 27 is reset, the empty groove part is located outside the guide groove 1. As a result, the squeezed impurities and pulp will fall to the outside of the guide groove 1 when the squeezing force on one side is lost. The filtered wastewater is discharged through the diversion channel 1, and then collected by the staff. It is then purified a second time through other purification devices so that the water can be used for other purposes.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for efficient recycling of clean papermaking wastewater, comprising a guide channel (1), wherein the upper end of the guide channel (1) is provided with a water inlet, characterized in that: A half gear (3) rotates on one side of the flow channel (1), a rotating shaft (5) rotates inside the flow channel (1), a flow guide plate (7) is connected to the outside of the rotating shaft (5), and a first filter screen (8) is provided on both sides of the flow guide plate (7). The two sets of first filter screens (8) are connected to the inner wall of the flow channel (1). One end of the rotating shaft (5) is connected to a connecting rod (11), and the other end of the connecting rod (11) is connected to a second filter plate (9). The second filter plate (9) is driven by the rotating shaft (5) to slide horizontally inside the guide channel (1). Both sets of first filter screens (8) have a collection groove (14) sliding on one side. A first guide tube (19) is provided on one side of the half gear (3). A reciprocating screw (18) rotates inside the first guide tube (19). A piston (20) is threadedly connected to the outside of the reciprocating screw (18). A storage tank (22) is connected to one end of the first guide tube (19). Two sets of second guide tubes (24) are connected to the outside of the storage tank (22). A compression block (27) is connected to one end of the second guide tube (24). A pressure relief port (25) is installed on the outside of both sets of second guide tubes (24).

2. The efficient recycling device for clean papermaking wastewater according to claim 1, characterized in that, A motor (2) is installed on one side of the guide channel (1). A rotating rod is connected to the output end of the motor (2). The end of the rotating rod away from the motor (2) is connected to a half gear (3). A gear A (4) meshes on one side of the half gear (3). A rotating shaft (5) is connected to one end of the gear A (4). The other end of the rotating shaft (5) extends through the guide channel (1) to the other side.

3. The efficient recycling device for clean papermaking wastewater according to claim 2, characterized in that, One end of the gear A (4) is connected to a first spring (6), and the other end of the first spring (6) is connected to the outer wall of the guide groove (1). The guide plate (7) is located inside the guide groove (1) and is located at the center of the inlet. The second filter plate (9) is fixedly connected to a number of rods (10) on the side near the first filter screen (8), and the outer diameter of the multiple rods (10) matches the size of the filter holes inside the first filter screen (8).

4. The efficient recycling device for clean papermaking wastewater according to claim 1, characterized in that, The other end of the rotating shaft (5) is connected to two sets of connecting rods (11). The two sets of connecting rods (11) are located outside the guide groove (1), and the connecting rods (11) are composed of two sets of connecting rods rotatably connected. The other end of the two sets of connecting rods (11) is movably connected to a connecting block (12). Two sets of guide grooves (13) are opened on one side of the guide groove (1). The connecting block (12) is located inside the guide groove (13), and the outer diameter of the connecting block (12) matches the inner diameter of the guide groove (13). The other end of the guide groove (13) is fixedly connected to the second filter plate (9).

5. The efficient recycling device for clean papermaking wastewater according to claim 1, characterized in that, The half gear (3) is meshed with a gear B (17) on the other side. One end of the gear B (17) is rotatably connected to the outer wall of the guide groove (1). The other end of the gear B (17) is connected to a reciprocating screw (18). A bracket is connected to the outside of the first guide tube (19). The other end of the bracket is connected to the outer wall of the storage tank (22).

6. The efficient recycling device for clean papermaking wastewater according to claim 1, characterized in that, One end of the first guide tube (19) is fixedly connected to a connecting tube A (21), and the other end of the connecting tube A (21) is connected to the storage tank (22). Two sets of connecting tubes B (23) are connected to the outside of the storage tank (22). The other ends of the two sets of connecting tubes B (23) are connected to the second guide tube (24), and a pressure valve is provided at the connection between the connecting tube B (23) and the storage tank (22).

7. The efficient recycling device for clean papermaking wastewater according to claim 1, characterized in that, The second guide tube (24) is movably connected to a push rod (26), which extends through the guide groove (1) and into the interior. One end of the push rod (26) inside the guide groove (1) is fixedly connected to the extrusion block (27).

8. The efficient recycling device for clean papermaking wastewater according to claim 1, characterized in that, The guide channel (1) has a through hole on one side, and the collection channel (14) is located inside the through hole. One end of the collection channel (14) is connected to a second spring (15), and one end of the second spring (15) is connected to a fixing bracket (16). The other end of the fixing bracket (16) is connected to the guide channel (1).

9. A clean papermaking wastewater high-efficiency recycling device according to claim 7, characterized in that, The other end of the push rod (26) is connected to a third spring (28), and the other end of the third spring (28) is connected to the inner wall of the second guide tube (24).

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