Integrated impurity recovery and precipitation device for papermaking wastewater

Abstract

The invention relates to the technical field of papermaking wastewater treatment, in particular to an integrated impurity recycling and settling device for papermaking wastewater, which comprises a settling pond and a feeding part on the inner side of the settling pond, a cabin cover is arranged on the top of the settling pond, a support is fixedly connected to the inner side of the settling pond, and one side, close to the feeding part, of the support is fixedly connected with the feeding part. An inclined plate is welded to the outer side of the support. The invention provides an integrated impurity recovery and precipitation device for papermaking wastewater, which has a dynamic design of driving an interception net through a shaft washer, continuously shakes off fiber impurities, is combined with a multi-layer filter net structure, avoids filter net blockage, improves the interception efficiency, reduces the winding or blockage risk of subsequent equipment, can make a medicament circumferentially diffused and fully stirred, and improves the quality of the product. According to the present invention, the uniform mixing of the agent and the wastewater is ensured, the disturbance of the precipitation region is avoided, the layering and non-uniform mixing problems of the traditional static feeding are overcome, the uniform water distribution of the precipitation region is achieved through the cylindrical inclined plate, and the impurity treatment, the agent mixing, the precipitation efficiency and other aspects are improved.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking wastewater treatment, in particular to an integrated impurity recovery and precipitation device for papermaking wastewater. Background Art

[0002] As we all know, papermaking wastewater is wastewater generated in the pulping and papermaking processes of papermaking production. It has the characteristics of 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 biochemical treatment and deep treatment is usually adopted. At the same time, it can be reused and utilized as a resource through white water reuse, black liquor resource utilization, sludge treatment, etc. Compared with domestic or chemical wastewater, papermaking wastewater not only contains more fillers, colloidal substances and organic matter, but also fiber impurities that are more difficult to treat.

[0003] The existing technology has the following problems: in conventional wastewater treatment systems, due to the good suspension of fiber impurities, when using, for example, inclined plate sedimentation, the suspended fiber impurities may be discharged from the equipment along with the clean water, resulting in a large amount of impurities in the treated water. It is also easy to cause entanglement or blockage of subsequent process equipment, which is inconvenient to use. In addition, when adding chemicals such as flocculants, stratification may occur during pre-dosing, and 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. Based on the above-mentioned situation, we found that it is difficult for the existing wastewater sedimentation process to avoid the above problems at the same time. Therefore, we proposed an integrated impurity recovery and sedimentation device for papermaking wastewater that can effectively further remove fiber impurities after sedimentation, and fully mix them with chemicals during the wastewater addition process, and has less negative impact on the sedimentation process. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides an integrated impurity recovery and sedimentation device for papermaking wastewater, which has the advantages of being able to effectively discharge fiber impurities after sedimentation, and fully mixing them with chemicals during the wastewater addition process, and having less negative impact on the sedimentation process.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: An integrated impurity recovery and sedimentation device for papermaking wastewater, comprising a sedimentation tank and a delivery portion inside the sedimentation tank, a hatch provided on the top of the sedimentation tank, a bracket fixedly connected to the inside of the sedimentation tank, a side of the bracket close to the delivery portion being fixedly connected to the delivery portion, an inclined plate welded to the outside of the bracket, a baffle fixedly connected to the inside of the sedimentation tank, a clean water channel fixedly connected to the top of the baffle, the inside of the hatch fixedly connected to the delivery portion, the clean water channel comprising an outer channel, the bottom of the outer channel fixedly connected to the baffle by bolts, an inner mesh and an outer mesh installed at the top of the inner channel, a matching disk installed at the bottom of the inner mesh, the top of the matching disk being mounted on the outer mesh, a through groove formed on the inside of the matching disk for matching with the delivery portion, a shaft ring provided on the inside of the outer channel, a plurality of through holes formed on the inside of the shaft ring, a blade fixedly connected to the outside of the shaft ring, and an interception net fixedly connected to the bottom of the shaft ring.

[0006] By adopting the above technical solution, a sedimentation tank is provided in combination with a hatch cover, so that the sedimentation environment is relatively closed, reducing the possible impact of impurities falling into the external environment. The bracket is provided in combination with the inclined plate. Since the sedimentation tank and the inclined plate are both cylindrical, and after the wastewater flows into the device from the central pipe, the cylindrical inclined plate can make the water flow spread to the surroundings in a relatively uniform manner, thereby achieving uniform water distribution in the entire sedimentation area, and at the same time increasing the total effective sedimentation area of ​​the inclined plate. Under the same tank volume, more sedimentation space can be provided, and then the precipitated impurities fall, and the clean water flows into the top of the partition through the inclined plate and the clean water channel, and is discharged from the top of the partition for subsequent processes. When the clean water passes through the clean water channel, due to the papermaking waste The water may contain a large amount of easily suspended low-density fiber impurities that may flow with the clean water, but will be intercepted by the interception net when passing through it, and then the water flow continues to pass. When passing the shaft ring, the water flow will push the blades, causing the shaft ring connected to it to rotate, and the interception net at the bottom of the shaft ring 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 that is driven by the water flow and rotates continuously and slowly is combined with the interception net. It can continuously shake off the fiber impurities attached to the surface of the interception net without affecting the sedimentation action, keeping the mesh unobstructed, 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 hole.

[0007] The present invention is further configured as follows: a slip ring is fixedly connected to the top of the shaft ring, a slide is slidably connected to the outer side of the slip ring, and the top of the slide and the outer track are installed by bolts.

[0008] By adopting the above technical solution, a slip ring is provided to cooperate with the slide, so as to install the shaft ring and enable the shaft ring to rotate on the inner side of the slide through the slip ring.

[0009] The present invention is further configured as follows: a guide bucket is fixedly connected to the inner side of the outer track, a limit ring is fixedly connected to the outer side of the matching disk, and the shaft ring is arranged between the guide bucket and the limit ring.

[0010] The above technical solution is adopted to set a guide bucket in combination with a limit ring to limit the bottom position of the shaft ring, and at the same time guide the flow of water to prevent clean water from flowing through a position that does not pass through the interception net.

[0011] The present invention is further configured as follows: a plurality of trapezoidal openings are provided on the inner side of the guide bucket, the top and bottom of the trapezoidal openings are connected, and the trapezoidal openings are arranged obliquely.

[0012] The above technical solution is adopted, by setting a trapezoidal mouth with a hollow interior, which is used to guide the water flow to the position of the trapezoidal mouth when passing through the guide bucket, so as to guide the water flow so that it can push the blades more effectively, while reducing the impact of the blade movement on the sedimentation area in the sedimentation.

[0013] The present invention is further configured as follows: a sewage pump is installed at the bottom of the sedimentation tank, a clean water pipe is fixedly connected to the outside of the sedimentation tank, and the clean water pipe is located on the top of the partition.

[0014] By adopting the above technical solution, by setting up a sewage pump, it is convenient to discharge impurities and sludge in the sedimentation tank when they accumulate too much or periodically. The clean water pipe is used to discharge the clean water after sedimentation and filtration on the top of the partition to subsequent processes.

[0015] The present invention is further configured as follows: the delivery portion includes a tail portion, the outer side of the tail portion is fixedly connected to the bracket, and the top of the tail portion is fixedly connected to a narrow portion.

[0016] By adopting the above technical solution, the tail is set as the location for discharging sewage into the sedimentation tank. Since the sewage needs to pass through the narrow part and then enter the wider tail, this process will reduce the flow rate of part of the sewage to avoid the impact of excessive water flow on the water body in the sedimentation.

[0017] The present invention is further configured such that the outer side of the narrow portion contacts the through groove on the inner side of the matching disk, and the top of the narrow portion is fixedly connected with an integrally formed medicine pipe and sewage pipe.

[0018] By adopting the above technical solution, by setting up a chemical pipe to be connected with the sewage pipe, when the chemical and sewage are introduced at the same time, they will contact each other at the narrow part and then enter the narrower part together, so as to effectively promote the contact between the chemical and sewage.

[0019] The present invention is further configured as follows: a reduction motor is provided on the top of the medicine tube, a hollow tube is provided on the output end of the reduction motor, and a plurality of through holes are opened on the outer side of the hollow tube.

[0020] By adopting the above technical solution, by setting a reduction motor in conjunction with a hollow tube, the medicine can be introduced from the inside of the hollow tube and discharged through the through hole. When the reduction motor drives the hollow tube to rotate, the medicine will diffuse in a circular shape to avoid uniform placement position, effectively reducing the dead angle of contact with sewage.

[0021] The present invention is further configured as follows: a mixing blade is fixedly connected to the outside of the hollow tube, a clamping sleeve is fixedly connected to the bottom of the reduction motor, and the clamping sleeve is installed on the top of the medicine tube through bolts.

[0022] By adopting the above technical solution, by setting mixing blades, when the reduction motor continuously drives the hollow tube to rotate, the mixing blades will stir the sewage and the reagent to further mix them. At the same time, since the bottom is a narrow tube, the sewage will maintain a downward flow direction when flowing, avoiding disturbance of the water in the sedimentation area during the stirring process.

[0023] The present invention is further configured as follows: the output end of the reduction motor is fixedly connected to an empty frame, the bottom of the empty frame is fixedly connected to the hollow tube, the top of the empty frame is provided with a limiting protrusion, the outer side of the empty frame is sleeved with a liquid ring, the outer side of the liquid ring is installed with an external hose, and the limiting protrusion is stuck in the bottom of the inner side of the liquid ring.

[0024] By adopting the above technical solution, an empty frame is provided for installing the reduction motor, and the provided liquid ring can continuously inject the medicine into the inside of the hollow tube through the external hose without affecting the rotation of the hollow tube.

[0025] Compared with the prior art, the present invention provides an integrated impurity recovery and precipitation device for papermaking wastewater, which has the following beneficial effects: The papermaking wastewater is used in an integrated impurity recovery and sedimentation device. By setting a sedimentation tank with a hatch cover, the sedimentation environment is relatively closed, reducing the impact of impurities falling into the external environment. The bracket is set with an inclined plate. Since the sedimentation tank and the inclined plate are both cylindrical, and after the wastewater flows into the device from the central pipe, the cylindrical inclined plate can make the water flow spread to the surroundings in a relatively uniform manner, thereby achieving uniform water distribution in the entire sedimentation area and increasing the total effective sedimentation area of ​​the inclined plate. Under the same tank volume, more sedimentation space can be provided, and then the precipitated impurities fall, and the clean water flows into the top of the partition through the inclined plate and the clean water channel, and is discharged from the top of the partition for subsequent processes. When the clean water passes through the clean water channel, Papermaking wastewater may contain a large amount of easily suspended low-density fiber impurities that may flow with the clean water, but will be intercepted by the interception net when passing through it, and then the water flow continues to pass. When passing the shaft ring, the water flow will push the blades, causing the shaft ring connected to it to rotate, and the interception net at the bottom of the shaft ring 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 that is driven by the water flow and rotates continuously and slowly is combined with the interception net. It can continuously shake off the fiber impurities attached to the surface of the interception net without affecting the sedimentation action, keeping the mesh unobstructed, allowing the clean water to continuously and stably filter the impurities and then pass through the through hole and finally flow out from the top of the inner side of the outer channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 Schematic diagram of the internal structure of the main structure of the present invention; Figure 3 Schematic diagram of the structure of the clean water channel in the present invention; Figure 4 Schematic diagram of the structure of the center shaft ring of the present invention; Figure 5 It is a structural schematic diagram of the guide bucket in the present invention; Figure 6 It is a front cross-sectional view of the main structure of the present invention; Figure 7 It is a connection diagram of the liquid ring in the present invention.

[0027] In the figure: 1. Sedimentation tank; 2. Hatch cover; 3. Bracket; 4. Launching part; 41. Tail; 42. Narrow part; 43. Chemical pipe; 44. Sewage pipe; 5. Partition; 6. Clean water channel; 61. Outer channel; 62. Inner net; 63. Outer net; 64. Matching plate; 65. Shaft ring; 66. Blade; 67. Intercepting net; 7. Slip ring; 8. Slide; 9. Guide bucket; 10. Limiting ring; 11. Trapezoidal mouth; 12. Sewage pump; 13. Liquid ring; 14. Clean water pipe; 15. Reducer motor; 16. Hollow pipe; 17. Mixing blade; 18. Card sleeve; 19. Empty frame; 20. Inclined plate. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: See also Figure 1-7 An integrated impurity recovery and sedimentation device for papermaking wastewater includes a sedimentation tank 1 and a delivery portion 4 inside the sedimentation tank 1. A hatch 2 is provided on the top of the sedimentation tank 1. A bracket 3 is fixedly connected to the inside of the sedimentation tank 1. The side of the bracket 3 close to the delivery portion 4 is fixedly connected to the delivery portion 4. An inclined plate 20 is welded to the outside of the bracket 3. A partition 5 is fixedly connected to the inside of the sedimentation tank 1. A clean water channel 6 is fixedly connected to the top of the partition 5. The inside of the hatch 2 is fixedly connected to the delivery portion 4. By setting up a sedimentation tank 1 in conjunction with a hatch 2, the sedimentation environment is relatively closed, reducing the impact that may be caused by impurities falling into the external environment. The bracket 3 is set in conjunction with the inclined plate 20. Since the sedimentation tank 1 and the inclined plate 20 are both cylindrical, and after the wastewater flows into the device from the central pipe, the cylindrical inclined plate 20 can make the water flow diffuse to the surroundings in a relatively uniform manner, thereby achieving uniform water distribution in the entire sedimentation area, and at the same time increasing the total effective sedimentation area of ​​the inclined plate 20. Under the same tank volume, more sedimentation space can be provided, and then the precipitated impurities fall, and the clean water flows into the top of the partition 5 through the inclined plate 20 and the clean water channel 6, and is discharged from the top of the partition 5 for subsequent processes.

[0030] Among them, 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. By setting the sewage pump 12, it is convenient to discharge the impurities and sludge in the sedimentation tank 1 when there is too much accumulation or periodic discharge. The clean water pipe 14 is used to discharge the clean water after precipitation and filtration on the top of the partition 5 to the subsequent process. The delivery part 4 includes a tail 41, the outside of the tail 41 is fixedly connected to the bracket 3, and the top of the tail 41 is fixedly connected with a narrow part 42. The tail 41 is set as a position for sewage discharge into the sedimentation tank 1. Since the sewage needs to pass through the narrow part 42 and then enter The wider tail 41, this process will reduce the flow rate of part of the sewage to avoid the water flow speed being too fast and affecting the water body in the sedimentation. The outer side of the narrow part 42 is in contact with the through groove on the inner side of the matching disk 64. The top of the narrow part 42 is fixedly connected with an integrally formed medicine tube 43 and a sewage pipe 44. By setting the medicine tube 43 to be connected with the sewage pipe 44, when the medicine and sewage are introduced at the same time, they will contact at the junction of the narrow part 42, and then enter the narrower narrow part 42 together to effectively promote the contact between the medicine and sewage. A reduction motor 15 is provided on the top of the medicine 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 A number of through holes are provided. By arranging a reduction motor 15 in conjunction with a hollow tube 16, the medicine can be introduced from the inside of the hollow tube 16 and discharged through the through holes. When the reduction motor 15 drives the hollow tube 16 to rotate, the medicine will be diffused in a circular pattern to avoid uniform placement and effectively reduce the dead angle of contact with sewage. 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 reduction motor 15. The ferrule 18 is installed with bolts and the top of the medicine tube 43. By arranging the mixing blade 17, when the reduction motor 15 continuously drives the hollow tube 16 to rotate, the mixing blade 17 will stir the sewage and the medicine to further Mixing, at the same time, because the bottom is a narrow tube, the sewage will maintain a downward flow direction when flowing, avoiding disturbing the water in the sedimentation area during the stirring process. The output end of the reduction motor 15 is fixedly connected to the empty frame 19, the bottom of the empty frame 19 is fixedly connected to the hollow tube 16, and the top of the empty frame 19 is provided with a limiting protrusion. The outer side of the empty frame 19 is provided with a liquid ring 13, and the outer side of the liquid ring 13 is installed with an external hose. The limiting protrusion is stuck in the bottom of the inner side of the liquid ring 13. By setting the empty frame 19 for installing the reduction motor 15, the set liquid ring 13 can continue to add medicine to the inner side of the hollow tube 16 through the external hose without affecting the rotation of the hollow tube 16.

[0031] The working principle of this embodiment is as follows: the sedimentation tank 1 cooperates with the hatch cover 2 to form a closed sedimentation environment to reduce interference from external impurities. The bracket 3 and the cylindrical inclined plate 20 make the wastewater evenly diffuse, increase the sedimentation area, and sink impurities. The clean water flows into the top of the partition 5 through the inclined plate and the clean water channel 6 and is discharged by the clean water pipe 14. The sewage pump 12 regularly removes the sludge at the bottom of the pool. The tail 41 of the feeding part 4 serves as the sewage discharge outlet. The flow rate decreases when the sewage flows through the narrow part 42. The chemical pipe 43 and the sewage pipe 44 make the chemical and sewage initially contact at the narrow part connection. The reduction motor 15 drives the hollow tube 16 to rotate. The outer through hole makes the chemical diffuse circumferentially. The mixing blade 17 further stirs and enhances the mixing effect. The narrow structure ensures that the water flows downward and avoids turbulence. The liquid ring 13 outside the empty frame 19 is continuously filled with chemical through an external hose without affecting the rotation of the hollow tube, ultimately achieving uniform water distribution, efficient precipitation and full mixing of chemical, and improving the quality of wastewater treatment.

[0032] Example 2: Based on Example 1, Figure 1-5 An integrated impurity recovery and sedimentation device for papermaking wastewater also includes a clean water channel 6, wherein the clean water channel 6 includes an outer channel 61, the bottom of the outer channel 61 is fixedly connected to the partition plate 5 by bolts, an inner layer net 62 and an outer layer net 63 are installed on the top of the inner side of the outer channel 61, a matching plate 64 is installed on the bottom of the inner layer net 62, the top of the matching plate 64 is installed with the outer layer net 63, and the inner side of the matching plate 64 is provided with a through groove that cooperates with the feeding part 4, an inner side of the outer channel 61 is provided with a shaft ring 65, the inner side of the shaft ring 65 is provided with a plurality of through holes, the outer side of the shaft ring 65 is fixedly connected to a blade 66, and the bottom of the shaft ring 65 is fixedly connected to an interception net 67; When the clean water passes through the clean water channel 6, the papermaking wastewater may contain a large amount of easily suspended low-density fiber impurities, which may flow along with the clean water. However, they will be intercepted by the interception net 67 when passing through it, and then the water flow continues to pass. When passing through the position of the shaft ring 65, the water flow will push the blade 66, causing the shaft ring 65 connected to it to rotate, and the interception net 67 at the bottom of the shaft ring 65 will also undergo dynamic changes. 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 continuously and slowly, cooperates with the interception net 67 to continuously shake off the fiber impurities attached to the surface of the interception net 67 without affecting the sedimentation action, keeping the mesh unobstructed, and allowing the clean water to continuously and stably filter impurities and then pass through the through hole and finally flow out from the top of the inner side of the outer channel 61.

[0033] Among them, the top of the shaft ring 65 is fixedly connected with a slip ring 7, and the outer side of the slip ring 7 is slidably connected with a slide 8. The top of the slide 8 and the outer track 61 are installed by bolts. The slip ring 7 is provided to cooperate with the slide 8 to install the shaft ring 65 and enable it to rotate on the inner side of the slide 8 through the slip ring 7. The inner side of the outer track 61 is fixedly connected with a guide bucket 9, and the outer side of the matching plate 64 is fixedly connected with a limit ring 10. The shaft ring 65 is provided between the guide bucket 9 and the limit ring 10. The guide bucket 9 is provided to cooperate with the limit ring 10 to limit the shaft ring. 65, and at the same time guide the passage of water to prevent clean water from flowing through a position that does not pass through the interception net 67. A number of trapezoidal openings 11 are provided on the inner side of the guide bucket 9. The top and bottom of the trapezoidal openings 11 are connected, and the trapezoidal openings 11 are inclined. By setting the trapezoidal openings 11 and the internal hollow connection, it is used to guide the water flow to the position of the trapezoidal openings 11 when the water flows through the guide bucket 9, so as to guide the water flow so that it can more effectively push the blades 66, while reducing the influence of the movement of the blades 66 on the sedimentation area in the sedimentation.

[0034] The working principle of this embodiment is as follows: the outer channel 61 is fixed to the top of the partition 5 by bolts, and the inner layer net 62 and the outer layer net 63 at the inner top thereof form a preliminary filtering structure with the matching disk 64, and the matching disk 64 groove is docked with the delivery part 4. When clean water flows through the clean water channel 6, low-density fiber impurities are intercepted by the interception net 67 at the bottom of the shaft ring 65, and the water flow pushes the outer blades 66 of the shaft ring 65 to rotate in the slide 8 through the slip ring 7, driving the interception net 67 to dynamically shake off the attached impurities and keep the mesh unobstructed. The clean water is filtered through the inner through-hole of the shaft ring 65 and the inner layer net 62 and the outer layer net 63 and then flows out from the top of the outer channel. Among them, the guide bucket 9 and the limit ring 10 limit the position of the shaft ring 65, and the inclined through-trapezoidal mouth 11 on the inner side of the guide bucket 9 guides the water flow to the blades 66, thereby enhancing the pushing effect and reducing the disturbance of the sedimentation area caused by the rotation of the blades, thereby ensuring the efficient and stable impurity interception and clean water filtration.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations may 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 portion (4) inside the sedimentation tank (1), characterized in that: The top of the sedimentation tank (1) is provided with a hatch (2), the inner side of the sedimentation tank (1) is fixedly connected to a bracket (3), the side of the bracket (3) close to the delivery portion (4) is fixedly connected to the delivery portion (4), the outer side of the bracket (3) is welded with an inclined plate (20), the inner side of the sedimentation tank (1) is fixedly connected to a partition (5), the top of the partition (5) is fixedly connected to a clean water channel (6), the inner side of the hatch (2) is fixedly connected to the delivery portion (4), the clean 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, and an inner layer net (62) and an outer layer net (63) are installed on the top of the inner side of the outer channel (61), and a matching disk (64) is installed on the bottom of the inner layer net (62). The top of the matching disk (64) is installed with the outer layer net (63), and the inner side of the matching disk (64) is provided with a through groove that matches the delivery portion (4). The inner side of the outer channel (61) is provided with a shaft ring (65), and the inner side of the shaft ring (65) is provided with a plurality of through holes. The outer side of the shaft ring (65) is fixedly connected with a blade (66), and the bottom of the shaft ring (65) is fixedly connected with an interception net (67).

2. The integrated impurity recovery and precipitation 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), the outer side of the slip ring (7) is slidably connected to a slide (8), and the top of the slide (8) and the outer track (61) are mounted by bolts.

3. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 1, characterized in that: The inner side of the outer track (61) is fixedly connected to a guide bucket (9), the outer side of the matching disc (64) is fixedly connected to a limit ring (10), and the shaft ring (65) is provided between the guide bucket (9) and the limit ring (10).

4. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 3, characterized in that: A plurality of trapezoidal openings (11) are provided on the inner side of the guide bucket (9), the top and bottom of the trapezoidal openings (11) are connected, and the trapezoidal openings (11) are arranged obliquely.

5. The integrated impurity recovery and precipitation 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), and the clean water pipe (14) is located on the top of the partition (5).

6. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 1, characterized in that: The delivery portion (4) comprises a tail portion (41), the outer side of the tail portion (41) is fixedly connected to the bracket (3), and the top of the tail portion (41) is fixedly connected to a narrow portion (42).

7. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 6, characterized in that: The outer side of the narrow portion (42) contacts the through groove on the inner side of the matching disk (64), and the top of the narrow portion (42) is fixedly connected with an integrally formed medicine tube (43) and a sewage pipe (44).

8. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 7, characterized in that: A reduction motor (15) is provided on the top of the medicine tube (43), and a hollow tube (16) is provided at the output end of the reduction motor (15). A plurality of through holes are provided on the outer side of the hollow tube (16).

9. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 8, characterized in that: The outer side of the hollow tube (16) is fixedly connected to a mixing blade (17), and the bottom of the reduction motor (15) is fixedly connected to a clamping sleeve (18), and the clamping sleeve (18) is installed on the top of the medicine tube (43) through bolts.

10. The integrated impurity recovery and precipitation device for papermaking wastewater according to claim 9, characterized in that: The output end of the reduction motor (15) is fixedly connected to an empty frame (19), the bottom of the empty frame (19) is fixedly connected to the hollow tube (16), the top of the empty frame (19) is provided with a limiting protrusion, the outer side of the empty frame (19) is sleeved with a liquid ring (13), the outer side of the liquid ring (13) is installed with an external hose, and the limiting protrusion is clamped on the bottom of the inner wall of the liquid ring (13).

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