An integrated impurity recovery and sedimentation device for papermaking wastewater
By designing an integrated impurity recovery and sedimentation device, the problems of poor treatment effect and uneven reagent dosing caused by the suspension of fiber impurities were solved, achieving efficient sedimentation of fiber impurities and uniform mixing of reagents, thus improving the treatment quality of papermaking wastewater.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU JINTIAN PAPER CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-17
Smart Images
Figure CN120736743B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of papermaking wastewater treatment technology, specifically to an integrated impurity recovery and sedimentation device for papermaking wastewater. Background Technology
[0002] As is well known, papermaking wastewater is the wastewater generated in the pulping and papermaking processes of papermaking. It is characterized by high pollutant concentration, deep color, strong acidity and alkalinity, and complex composition. If discharged without treatment, it will cause water pollution, soil pollution, and ecological damage. At present, a combination of biological treatment and deep treatment processes are usually adopted. At the same time, it can be reused and utilized through white water reuse, black liquor resource utilization, and sludge treatment. Compared with domestic or chemical wastewater, papermaking wastewater not only contains more fillers, colloidal substances, and organic matter, but also has more fiber impurities that are more difficult to treat.
[0003] The problems with existing technologies are as follows: In conventional wastewater treatment systems, due to the high suspension of fibrous impurities, when using methods such as inclined plate sedimentation, the suspended fibrous impurities may be discharged from the equipment along with the clean water, resulting in a high amount of impurities in the treated water. This can also easily cause entanglement or blockage in subsequent process equipment, making it inconvenient to use. Furthermore, when adding flocculants and other agents, pre-addition may cause stratification, while adding them during the sedimentation process may result in some wastewater not coming into contact with them, thus failing to achieve the desired treatment effect.
[0004] Based on the above-mentioned situation, we found that the existing wastewater sedimentation process is difficult to avoid the above problems at the same time. Therefore, we propose an integrated impurity recovery and sedimentation device for papermaking wastewater that can effectively remove fiber impurities after sedimentation, fully mix them with the reagents during wastewater addition, and has a smaller negative impact on the sedimentation process. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides an integrated impurity recovery and sedimentation device for papermaking wastewater. It has the advantages of effectively discharging fibrous impurities after sedimentation, ensuring thorough mixing of impurities and reagents during wastewater addition, and minimizing negative impacts on the sedimentation process.
[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an integrated impurity recovery and sedimentation device for papermaking wastewater, comprising a sedimentation tank and an inner feeding section of the sedimentation tank, the top of the sedimentation tank being provided with a cover, a support fixedly connected to the inner side of the sedimentation tank, the side of the support near the feeding section being fixedly connected to the feeding section, an inclined plate welded to the outer side of the support, a partition fixedly connected to the inner side of the sedimentation tank, a clear water channel fixedly connected to the top of the partition, the inner side of the cover being fixedly connected to the feeding section, the clear water channel including an outer channel, the bottom of the outer channel being fixedly connected to the partition by bolts, an inner mesh and an outer mesh installed on the top of the inner side of the outer channel, a mating disc installed at the bottom of the inner mesh, the top of the mating disc being installed with the outer mesh, a through groove cooperating with the feeding section being opened on the inner side of the mating disc, a shaft ring provided on the inner side of the outer channel, several through holes being opened on the inner side of the shaft ring, blades fixedly connected to the outer side of the shaft ring, and an interception net fixedly connected to the bottom of the shaft ring.
[0007] By adopting the above technical solution, a sedimentation tank with a cover is installed to create a relatively enclosed sedimentation environment, reducing the impact of impurities falling into the external environment. The support structure, combined with inclined plates, utilizes a cylindrical shape for both the sedimentation tank and the inclined plates. After wastewater flows into the device from the central pipe, the cylindrical inclined plates allow the water flow to diffuse more evenly in all directions, achieving uniform water distribution throughout the sedimentation area. This also increases the total effective sedimentation area of the inclined plates, providing more sedimentation space within the same tank volume. Subsequently, sedimented impurities fall, and clean water flows through the inclined plates and clean water channels into the top of the baffle plate, and then exits from the top of the baffle plate for subsequent processes. As the clean water passes through the clean water channels, due to the papermaking waste... The water may contain a large number of easily suspended, low-density fibrous impurities that may flow along with the clean water. However, these impurities will be intercepted by the interception net as the water continues to flow. When the water passes the shaft ring, the water flow will push the blades, causing the shaft ring connected to it to rotate. The interception net at the bottom of the shaft ring will also change dynamically. Even if the fibrous impurities in the papermaking wastewater may adhere to the surface of the static mesh structure, the shaft ring, driven by the water flow and rotating slowly, in conjunction with the interception net, can continuously shake off the fibrous impurities attached to the surface of the interception net without affecting the sedimentation process. This keeps the mesh openings clear, allowing the clean water to continuously and stably filter the impurities and finally flow out from the top inside the outer channel through the through holes.
[0008] The present invention is further configured such that: a slip ring is fixedly connected to the top of the shaft ring, a slide is slidably connected to the outside of the slip ring, and the top of the slide and the outer track are installed by bolts.
[0009] The above technical solution involves setting a slip ring to cooperate with the slide to install the shaft ring, allowing it to rotate inside the slide via the slip ring.
[0010] The present invention is further configured such that: a guide bucket is fixedly connected to the inner side of the outer channel, a limiting ring is fixedly connected to the outer side of the mating disc, and the shaft ring is disposed between the guide bucket and the limiting ring.
[0011] By adopting the above technical solution, a guide bucket is set in conjunction with a limiting ring to limit the bottom position of the shaft ring and guide the water flow, preventing clean water from flowing through a position that does not pass through the interception net.
[0012] The present invention is further configured such that: the inner side of the guide bucket is provided with a plurality of trapezoidal openings, the top and bottom of the trapezoidal openings are connected, and the trapezoidal openings are inclined.
[0013] By adopting the above technical solution, a trapezoidal opening is set with a hollow and through interior to guide the water flow to the position of the trapezoidal opening when the water flows through the guide bucket, so as to guide the water flow more effectively to push the blades, while reducing the impact of the blades' movement on the sedimentation area inside the sedimentation chamber.
[0014] The present invention is further configured such that: a sewage pump is installed at the bottom of the sedimentation tank, and a clean water pipe is fixedly connected to the outside of the sedimentation tank, the clean water pipe being located at the top of the partition.
[0015] By adopting the above technical solution, a sewage pump can be installed to facilitate the discharge of impurities and sludge from the sedimentation tank when they accumulate excessively or periodically. The installed clear water pipe is used to discharge the clear water filtered by sedimentation at the top of the baffle to subsequent processes.
[0016] The present invention is further configured such that: the delivery part includes a tail, the outer side of the tail is fixedly connected to the bracket, and a narrow part is fixedly connected to the top of the tail.
[0017] By adopting the above technical solution, a tail section is set up as the location for discharging sewage into the sedimentation tank. Since the sewage needs to pass through the narrow section and then enter the wider tail section, this process will reduce the flow rate of the sewage to avoid the water flow being too fast and affecting the water in the sedimentation tank.
[0018] The invention is further configured such that the outer side of the narrow section and the inner side of the mating disc are in contact with a through groove, and an integrally formed medicine tube and sewage tube are fixedly connected to the top of the narrow section.
[0019] By adopting the above technical solution, and by setting up a chemical pipe that is connected to a sewage pipe, when the chemical and sewage are introduced at the same time, they will come into contact at the narrow junction and then enter the narrower section together, so as to effectively promote the contact between the chemical and sewage.
[0020] The present invention is further configured such that: a reduction motor is provided at the top of the medicine tube, a hollow tube is provided at the output end of the reduction motor, and several through holes are provided on the outer side of the hollow tube.
[0021] By adopting the above technical solution, and by setting up a geared motor in conjunction with a hollow tube, the agent can be introduced into the hollow tube and discharged through the through hole. When the geared motor drives the hollow tube to rotate, the agent will spread in a circumferential manner, so as to avoid uniform placement and effectively reduce the dead angle of contact with sewage.
[0022] The invention is further configured such that: a mixing blade is fixedly connected to the outside of the hollow tube, and a retainer is fixedly connected to the bottom of the geared motor; the retainer is installed by bolts and the top of the reagent tube.
[0023] By adopting the above technical solution, by setting up mixing blades, when the geared motor continuously drives the hollow tube to rotate, the mixing blades will stir the sewage and the agent to further mix. At the same time, because the bottom is a narrow tube, the sewage will maintain a downward flow direction when flowing, avoiding disturbance to the water in the sedimentation area during the stirring process.
[0024] The present invention is further configured such that: the output end of the geared motor is fixedly connected to a hollow frame, the bottom of the hollow frame is fixedly connected to a hollow tube, the top of the hollow frame is provided with a limiting protrusion, a liquid ring is sleeved on the outside of the hollow frame, an external hose is installed on the outside of the liquid ring, and the limiting protrusion is stuck in the bottom of the inner side of the liquid ring.
[0025] By adopting the above technical solution, a hollow frame is set up for installing the geared motor. The liquid ring can continuously inject the agent into the inside of the hollow tube through the external hose without affecting the rotation of the hollow tube.
[0026] Compared with the prior art, the present invention provides an integrated impurity recovery and sedimentation device for papermaking wastewater, which has the following beneficial effects:
[0027] This papermaking wastewater treatment unit utilizes an integrated impurity recovery and sedimentation system. By incorporating a sedimentation tank with a cover, the sedimentation environment is relatively enclosed, reducing the impact of impurities falling from the external environment. The support structure, combined with inclined plates, ensures that the wastewater, flowing from the central pipe, is evenly distributed across the entire sedimentation area due to the cylindrical shape of the sedimentation tank and inclined plates. This increases the total effective sedimentation area of the inclined plates, providing more sedimentation space within the same tank volume. The settled impurities fall, and the clean water flows through the inclined plates and clear water channels to the top of the baffle plate, then exits from the top for subsequent processes. As the clean water passes through the clear water channels... Papermaking wastewater may contain a large amount of easily suspended, low-density fibrous impurities that may flow along with the clean water. However, these impurities will be intercepted by the interception net as the water continues to flow through. When the water passes the shaft ring, the water flow will push the blades, causing the shaft ring connected to it to rotate. The interception net at the bottom of the shaft ring will also change dynamically. Even if the fibrous impurities in the papermaking wastewater may adhere to the surface of the static mesh structure, the shaft ring, driven by the water flow and rotating slowly, in conjunction with the interception net, can continuously shake off the fibrous impurities attached to the surface of the interception net without affecting the sedimentation process. This keeps the mesh openings clear, allowing the clean water to continuously and stably filter the impurities and finally flow out from the top of the inner side of the outer channel through the through holes. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure in this invention;
[0029] Figure 2 This is a schematic diagram of the internal structure of the main structure in this invention;
[0030] Figure 3 This is a schematic diagram of the clear water channel structure in this invention;
[0031] Figure 4 This is a schematic diagram of the structure of the shaft ring in this invention;
[0032] Figure 5 This is a schematic diagram of the guide bucket structure in this invention;
[0033] Figure 6 This is a front sectional view of the main structure in this invention;
[0034] Figure 7 This is a schematic diagram of the connection of the liquid ring in this invention.
[0035] In the diagram: 1. Sedimentation tank; 2. Hatch cover; 3. Support frame; 4. Dosing section; 41. Tail end; 42. Narrow section; 43. Chemical pipe; 44. Sewage pipe; 5. Baffle plate; 6. Clear water channel; 61. Outer channel; 62. Inner mesh; 63. Outer mesh; 64. Matching plate; 65. Shaft ring; 66. Blade; 67. Interception net; 7. Slip ring; 8. Slide frame; 9. Guide hopper; 10. Limiting ring; 11. Trapezoidal opening; 12. Sewage pump; 13. Liquid ring; 14. Clear water pipe; 15. Gear motor; 16. Hollow pipe; 17. Mixing blade; 18. Compression sleeve; 19. Empty frame; 20. Inclined plate. Detailed Implementation
[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] Example 1:
[0038] Please see Figure 1-7 An integrated impurity recovery and sedimentation device for papermaking wastewater includes a sedimentation tank 1 and an inner feeding section 4. The top of the sedimentation tank 1 is provided with a cover 2. A support 3 is fixedly connected to the inner side of the sedimentation tank 1. The side of the support 3 near the feeding section 4 is fixedly connected to the feeding section 4. An inclined plate 20 is welded to the outer side of the support 3. A partition 5 is fixedly connected to the inner side of the sedimentation tank 1. A clear water channel 6 is fixedly connected to the top of the partition 5. The inner side of the cover 2 is fixedly connected to the feeding section 4.
[0039] By setting up a sedimentation tank 1 with a cover 2, the sedimentation environment is relatively enclosed, reducing the impact of impurities falling into the external environment. The support 3 is set up with an inclined plate 20. Since both the sedimentation tank 1 and the inclined plate 20 are cylindrical, after the wastewater flows into the device from the central pipe, the cylindrical inclined plate 20 can make the water flow spread to the surroundings in a more uniform way, realizing the uniformity of water distribution in the entire sedimentation area. At the same time, it increases the total effective sedimentation area of the inclined plate 20, providing more sedimentation space under the same tank volume. Then the sedimented impurities fall down, and the clean water flows through the inclined plate 20 and the clean water channel 6 into the top of the baffle 5, and is discharged from the top of the baffle 5 for subsequent processes.
[0040] The sedimentation tank 1 is equipped with a sewage pump 12 at its bottom and a clear water pipe 14 fixedly connected to its outer side. The clear water pipe 14 is located at the top of the baffle 5. By setting up the sewage pump 12, it is convenient to discharge impurities and sludge from the sedimentation tank 1 when they accumulate excessively or periodically. The clear water pipe 14 is used to discharge the clear water filtered by sedimentation at the top of the baffle 5 to subsequent processes. The discharge section 4 includes a tail section 41, the outer side of which is fixedly connected to the support 3. A narrow section 42 is fixedly connected to the top of the tail section 41. The tail section 41 is used as the location for discharging sewage into the sedimentation tank 1. Since the sewage needs to pass through the narrow section 42 before entering the sedimentation tank 1, the sewage will be discharged into the sedimentation tank 1. The wider tail section 41 reduces the flow rate of wastewater to prevent excessive flow from affecting the sedimentation process. The outer side of the narrow section 42 contacts the groove on the inner side of the mating disc 64. An integrally formed chemical tube 43 and wastewater tube 44 are fixedly connected to the top of the narrow section 42. By connecting the chemical tube 43 and the wastewater tube 44, when both chemicals and wastewater are introduced simultaneously, they will contact each other at the junction of the narrow section 42 and then enter the narrower section 42 together, effectively promoting the contact between the chemicals and wastewater. A reduction motor 15 is provided at the top of the chemical tube 43, and a hollow tube 16 is provided at the output end of the reduction motor 15. The outer side of the hollow tube 16... The tube 43 has several through holes. A geared motor 15, in conjunction with a hollow tube 16, allows chemicals to be introduced into the hollow tube 16 and discharged through the through holes. When the geared motor 15 drives the hollow tube 16 to rotate, the chemicals diffuse in a circular pattern, preventing uniform application and effectively reducing dead zones in contact with wastewater. A mixing blade 17 is fixedly connected to the outside of the hollow tube 16, and a retaining sleeve 18 is fixedly connected to the bottom of the geared motor 15. The retaining sleeve 18 is installed on the top of the chemical tube 43 using bolts. By incorporating the mixing blade 17, as the geared motor 15 continuously drives the hollow tube 16 to rotate, the mixing blade 17 further mixes the wastewater and chemicals. The mixture is mixed, and because the bottom is a narrow tube, the sewage will maintain a downward flow direction when flowing, avoiding disturbance to the water in the sedimentation area during the stirring process. The output end of the geared motor 15 is fixedly connected to the hollow frame 19. The bottom of the hollow frame 19 is fixedly connected to the hollow tube 16. The top of the hollow frame 19 is provided with a limiting protrusion. A liquid ring 13 is sleeved on the outside of the hollow frame 19. An external hose is installed on the outside of the liquid ring 13. The limiting protrusion is stuck in the bottom of the inner side of the liquid ring 13. The hollow frame 19 is used to install the geared motor 15. The liquid ring 13 can continuously add chemicals to the inside of the hollow tube 16 through the external hose without affecting the rotation of the hollow tube 16.
[0041] The working principle of this embodiment is as follows: The sedimentation tank 1, together with the cover 2, forms a closed sedimentation environment, reducing interference from external impurities. The support 3 and the cylindrical inclined plate 20 allow wastewater to be evenly diffused, increasing the sedimentation area and causing impurities to settle. The clean water flows into the top of the baffle 5 through the inclined plate and the clean water channel 6, and is discharged through the clean water pipe 14. The sewage pump 12 regularly removes the sludge at the bottom of the tank. The tail 41 of the feeding section 4 serves as the sewage discharge outlet. When the sewage flows in through the narrow section 42, the flow rate decreases. The chemical pipe 43 and the sewage pipe 44 make initial contact between the chemical and the sewage at the junction of the narrow section. The reduction motor 15 drives the hollow tube 16 to rotate. The through hole on its outer side allows the chemical to diffuse circumferentially. The mixing blade 17 further stirs and enhances the mixing effect. The narrow section structure ensures that the water flows downward and avoids turbulence. The liquid ring 13 on the outside of the hollow frame 19 continuously adds chemical through the external hose without affecting the rotation of the hollow tube. Finally, uniform water distribution, efficient sedimentation, and full mixing of chemical are achieved, improving the quality of wastewater treatment.
[0042] Example 2:
[0043] Based on Example 1, and referring to Figure 1-5 An integrated impurity recovery and sedimentation device for papermaking wastewater also includes a clear water channel 6, wherein the clear water channel 6 includes an outer channel 61, the bottom of the outer channel 61 is fixedly connected by bolts and a partition plate 5, an inner mesh 62 and an outer mesh 63 are installed on the top of the inner side of the outer channel 61, a mating disc 64 is installed on the bottom of the inner mesh 62, the top of the mating disc 64 is installed with the outer mesh 63, a through groove that mates with the feeding part 4 is opened on the inner side of the mating disc 64, a shaft ring 65 is provided on the inner side of the outer channel 61, a plurality of through holes are opened on the inner side of the shaft ring 65, a blade 66 is fixedly connected to the outer side of the shaft ring 65, and an interception net 67 is fixedly connected to the bottom of the shaft ring 65;
[0044] As the clean water passes through the clean water channel 6, a large amount of easily suspended low-density fiber impurities in the papermaking wastewater may flow along with the clean water. However, these impurities will be intercepted by the interception net 67. The water then continues to flow through the channel. When it passes the shaft ring 65, the water flow will push the blades 66, causing the shaft ring 65 connected to it to rotate. The interception net 67 at the bottom of the shaft ring 65 will also change dynamically. Even if the fiber impurities in the papermaking wastewater may adhere to the surface of the static mesh structure, the shaft ring 65, which is driven by the water flow and rotates slowly, can continuously shake off the fiber impurities attached to the surface of the interception net 67 without affecting the sedimentation process. This keeps the mesh open, allowing the clean water to continuously and stably filter the impurities and finally flow out from the top inside the outer channel 61 through the through holes.
[0045] The shaft ring 65 is fixedly connected to the top of a sliding ring 7, and a slide 8 is slidably connected to the outside of the sliding ring 7. The top of the slide 8 and the outer track 61 are bolted together. The sliding ring 7, in cooperation with the slide 8, is used to install the shaft ring 65 and allows it to rotate within the slide 8. A guide bucket 9 is fixedly connected to the inside of the outer track 61, and a limit ring 10 is fixedly connected to the outside of the mating disc 64. The shaft ring 65 is positioned between the guide bucket 9 and the limit ring 10. The guide bucket 9, in cooperation with the limit ring 10, is used to limit the shaft ring. At the bottom of 65, the water flow is guided to prevent clean water from flowing through the interceptor 67. The inner side of the guide bucket 9 is provided with several trapezoidal openings 11, the top and bottom of which are connected. The trapezoidal openings 11 are inclined. By setting the trapezoidal openings 11 and making them hollow and connected inside, the water flow is guided to the position of the trapezoidal openings 11 when it passes through the guide bucket 9, so as to guide the water flow and make it more effective in pushing the blades 66, while reducing the impact of the movement of the blades 66 on the sedimentation area inside the sedimentation chamber.
[0046] The working principle of this embodiment is as follows: The outer channel 61 is fixed to the top of the partition plate 5 by bolts. The inner layer mesh 62 and outer layer mesh 63 on the top of its inner side form a preliminary filtration structure with the mating disc 64. The groove of the mating disc 64 is connected to the dispensing part 4. When the clean water flows through the clean water channel 6, the low-density fiber impurities are intercepted by the intercepting net 67 at the bottom of the shaft ring 65. The water flow pushes the outer blade 66 of the shaft ring 65, causing it to rotate in the slide frame 8 through the slip ring 7, which drives the intercepting net 67 to dynamically shake off the attached impurities and keep the mesh open. After being filtered by the inner hole of the shaft ring 65 and the inner layer mesh 62 and outer layer mesh 63, the clean water flows out from the top of the outer channel. The guide bucket 9 and the limiting ring 10 restrict the position of the shaft ring 65. The inclined trapezoidal opening 11 inside the guide bucket 9 guides the water flow to the blade 66, enhancing the pushing effect and reducing the disturbance of the sedimentation area caused by the rotation of the blades, ensuring the high efficiency and stability of impurity interception and clean water filtration.
[0047] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An integrated impurity recovery and sedimentation device for papermaking wastewater, comprising a sedimentation tank (1) and a feeding section (4) inside the sedimentation tank (1), characterized in that: The sedimentation tank (1) is provided with a hatch cover (2) on the top. A bracket (3) is fixedly connected to the inner side of the sedimentation tank (1). The bracket (3) is fixedly connected to the feeding part (4) on the side near the feeding part (4). An inclined plate (20) is welded to the outer side of the bracket (3). A partition (5) is fixedly connected to the inner side of the sedimentation tank (1). A clear water channel (6) is fixedly connected to the top of the partition (5). The inner side of the hatch cover (2) is fixedly connected to the feeding part (4). The clear water channel (6) includes an outer channel (61). The bottom of the outer channel (61) is connected to the partition (5) by bolts. The outer channel (61) is fixedly connected to an inner mesh (62) and an outer mesh (63) on the top of its inner side. A mating disc (64) is installed at the bottom of the inner mesh (62). The top of the mating disc (64) is installed with the outer mesh (63). A through groove that mates with the delivery part (4) is opened on the inner side of the mating disc (64). A shaft ring (65) is provided on the inner side of the outer channel (61). Several through holes are opened on the inner side of the shaft ring (65). A blade (66) is fixedly connected to the outer side of the shaft ring (65). An intercepting net (67) is fixedly connected to the bottom of the shaft ring (65).
2. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 1, characterized in that: The top of the shaft ring (65) is fixedly connected to a slip ring (7), and the outer side of the slip ring (7) is slidably connected to a slide (8). The top of the slide (8) and the outer track (61) are installed by bolts.
3. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 1, characterized in that: The inner side of the outer channel (61) is fixedly connected to a guide bucket (9), the outer side of the mating disc (64) is fixedly connected to a limiting ring (10), and the shaft ring (65) is located between the guide bucket (9) and the limiting ring (10).
4. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 3, characterized in that: The inner side of the guide bucket (9) is provided with several trapezoidal openings (11), the top and bottom of the trapezoidal openings (11) are connected, and the trapezoidal openings (11) are inclined.
5. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 1, characterized in that: A sewage pump (12) is installed at the bottom of the sedimentation tank (1), and a clean water pipe (14) is fixedly connected to the outside of the sedimentation tank (1). The clean water pipe (14) is located at the top of the partition (5).
6. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 1, characterized in that: The delivery part (4) includes a tail (41), the outer side of the tail (41) is fixedly connected to the bracket (3), and a narrow part (42) is fixedly connected to the top of the tail (41).
7. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 6, characterized in that: The outer side of the narrow section (42) and the inner side of the mating disc (64) are in contact with the through groove, and the top of the narrow section (42) is fixedly connected with an integrally formed medicine tube (43) and sewage tube (44).
8. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 7, characterized in that: The top of the medicine tube (43) is provided with a speed reduction motor (15), and the output end of the speed reduction motor (15) is provided with a hollow tube (16), and several through holes are opened on the outside of the hollow tube (16).
9. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 8, characterized in that: A mixing blade (17) is fixedly connected to the outside of the hollow tube (16), and a ferrule (18) is fixedly connected to the bottom of the geared motor (15). The ferrule (18) is installed by bolts and the top of the medicine tube (43).
10. The integrated impurity recovery and sedimentation device for papermaking wastewater according to claim 9, characterized in that: The output end of the geared motor (15) is fixedly connected to a hollow frame (19). The bottom of the hollow frame (19) is fixedly connected to the hollow tube (16). The top of the hollow frame (19) is provided with a limiting protrusion. A liquid ring (13) is sleeved on the outside of the hollow frame (19). An external hose is installed on the outside of the liquid ring (13). The limiting protrusion is snapped into the bottom of the inner wall of the liquid ring (13).