White water recycling treatment device for paper machine

Abstract

The invention provides a papermaking machine white water recycling treatment device, and relates to the technical field of wastewater treatment.The papermaking machine white water recycling treatment device comprises a treatment pond, a pushing mechanism, an oxygen injection assembly and a butt joint mechanism, a bottom plate is arranged at the bottom of the treatment pond and used for dividing the interior of the treatment pond into two spaces, and the pushing mechanism is installed at the bottom of the bottom plate and used for pushing the oxygen injection assembly into the two spaces; a motor is mounted at one end of the pushing mechanism, the motor is in threaded connection with the bottom of the side edge of the treatment pond, an oxygen injection assembly is inserted into the surface of the bottom plate, and a plurality of partition plates are arranged on the inner side of the treatment pond. The device can ensure that the injected wastewater can slowly and continuously flow in the same treatment tank, and the purposes of oxygen injection and microbial decomposition and purification are achieved in the flowing process, so that the wastewater can be continuously injected in the recovery treatment process of the papermaking machine white water, and continuous discharge is achieved; injection and discharge in batches are not needed, and the purification process is more efficient and convenient.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a device for recycling and treating white water from papermaking machines. Background Technology

[0002] White water from papermaking machines is wastewater generated in the papermaking process, primarily originating from the wire dewatering and press dewatering stages. It contains pollutants such as fine fibers, fillers, sizing agents, and dissolved organic matter. The white water contains dissolved organic matter (e.g., hemicellulose, lignin degradation products, starch, sizing agent residues, additives, etc.), colloidal substances, and some fine fibers. Microorganisms such as bacteria, fungi, and protozoa can utilize these substances as carbon and energy sources for metabolism, breaking them down into carbon dioxide, water, methane, and microbial cell matter. Therefore, recycling white water from papermaking machines using microorganisms is a common approach.

[0003] In existing technologies, wastewater is directly injected into the treatment tank during the microbial purification process. This results in the wastewater being added in batches, making continuous injection and discharge impossible. Furthermore, the sludge produced during the microbial purification process settles directly to the bottom layer, making cleaning difficult and determining the specific purification effect. Additional sampling and testing are required, which makes it difficult to flexibly control the purification time based on the impurity content in the wastewater. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a wastewater recycling and treatment device for papermaking machines, thereby solving the problems mentioned in the background art. The present invention can ensure that the injected wastewater can flow slowly and continuously within the same treatment tank, achieving oxygenation and microbial decomposition and purification during the flow process. Thus, the wastewater can be continuously injected and continuously discharged during the recycling and treatment process of papermaking machine white water, eliminating the need for batch injection and discharge, making the purification process more efficient and convenient.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a white water recycling and treatment device for papermaking machines, comprising a treatment device body, wherein the treatment device body includes: The treatment tank includes a pushing mechanism, an oxygen injection assembly, and a docking mechanism. The bottom of the treatment tank is provided with a bottom plate, which is used to divide the interior of the treatment tank into two spaces. A pushing mechanism is installed at the bottom of the bottom plate, and a motor is installed at one end of the pushing mechanism. The motor is screwed to the bottom side of the treatment tank. An oxygen injection assembly is inserted into the surface of the bottom plate. Multiple baffles are provided inside the treatment tank. A flow interlayer is provided between adjacent baffles. A diffuser plate is provided inside each flow interlayer. The oxygen injection assembly passes through the bottom of each diffuser plate and is used to deliver oxygen into the wastewater inside the treatment tank. The bottom of the base plate is provided with multiple docking mechanisms, and each row of docking mechanisms is aligned with the upper flowing interlayer. The pushing mechanism connects to each row of docking mechanisms in sequence through translational movement.

[0006] Furthermore, the processing pool also includes: The treatment tank has a water injection pipe and a drain outlet. A strip-shaped hole is provided on the side of the treatment tank. One side of the pushing mechanism extends outward from the inside of the strip-shaped hole. A water injection pipe is connected to the top corner of the treatment tank. The treatment tank is connected to a drain outlet on its side, and a valve is installed on the surface of the drain outlet. Each of the partitions has a flow notch at one end. The wastewater inside the treatment tank flows sequentially along each flow layer and the flow notch toward the drain outlet.

[0007] Furthermore, the oxygen injection assembly includes: The diffuser includes a diffusion pipe, a conveying channel, and a bottom inclined plate. One end of the diffusion pipe is connected to an air inlet, and multiple conveying channels are connected to the side of the diffusion pipe. A bottom inclined plate is installed at the bottom of the flow interlayer, and the conveying channels pass through the interior of each partition and the bottom inclined plate in sequence.

[0008] Furthermore, the diffuser plate is disposed at the top of the bottom inclined plate, and the surface of the diffuser plate is provided with multiple spray holes. The interior of the diffuser pipe is sequentially connected to the interior of the diversion pipe, the bottom inclined plate, the diffuser plate, and the spray holes. The side of the diffuser plate is fixedly connected to the surface of the partition plate, and the oxygen injection assembly is connected to an external oxygen supply device through an air inlet.

[0009] Furthermore, the docking mechanism includes a docking pipe, a fixed frame, and a rotating disk. The top end of the docking pipe is connected to the interior of the flow interlayer, and the docking pipe is located below the base plate. A fixed frame is also welded to the bottom of the base plate, and a sliding groove is provided on the side of the fixed frame.

[0010] Furthermore, the rotating disk is integrally embedded inside the fixed frame, and the rotating disk includes: The rotating disk has side docking holes, top-layer docking holes, and a lower protrusion. The side docking holes are located on both sides of the rotating disk, the top-layer docking holes are located on the top of the rotating disk, and the lower protrusion is integrally formed on the bottom of the rotating disk. A protruding plate is welded to the side of the lower protrusion.

[0011] Furthermore, the bottom of the docking pipe is connected to the interior of the rotating disk through the top docking hole, and a torsion spring is sleeved on the surface of the lower protruding post. The top end of the torsion spring is welded and fixed to the bottom of the fixed frame, and the bottom end of the torsion spring is welded and fixed to the surface of the lower protruding post. The rotating disk is connected to the interior of the slide groove through a side docking hole, and the surface of the rotating disk is in contact with the inner wall of the fixed frame.

[0012] Furthermore, the push mechanism includes: The device includes a motor, a lead screw, and a transmission frame. The motor is screwed to the outside of the treatment tank. The output end of the motor is connected to a lead screw. The surface of the lead screw is fitted with a transmission frame. The bottom of the transmission frame has a threaded hole, and the lead screw passes through the inside of the threaded hole.

[0013] Furthermore, the push mechanism also includes: The extraction pipe includes a extraction port, a conveying channel, and a sliding interface. One end of the extraction pipe is provided with an extraction port, the surface of the extraction pipe is integrally formed with a conveying channel, and the top of the conveying channel is integrally formed with a sliding interface. A lever is welded to the side of the conveying channel. The lever is used to abut against the side of the convex plate, and the lever pushes the convex plate to rotate the lower convex column.

[0014] Furthermore, the transmission frame is welded to the bottom of the extraction pipe, the extraction port extends outward from the inside of the strip hole, and the end of the sliding interface is used to be embedded into the inside of the groove. The interior of the rotating disk is connected to the interior of the extraction port via a side docking hole, a sliding docking interface, a conveying channel, and an extraction pipe.

[0015] The beneficial effects of this invention are: 1. The wastewater recycling and treatment device for papermaking machines has multiple baffles and a flow jacket area inside the treatment tank. This structure ensures that the injected wastewater can flow slowly and continuously inside the same treatment tank. During the flow, oxygenation and microbial decomposition and purification are achieved. Thus, the wastewater can be continuously injected and discharged during the recycling and treatment process of papermaking machine wastewater, without the need for batch injection and discharge, making the purification process more efficient and convenient.

[0016] 2. The white water recycling and treatment device for papermaking machines has multiple bottom inclined plates on the inner side of the flow jacket, and each bottom inclined plate is connected to the oxygen injection component. With the help of these bottom inclined plates, the sludge that settles at the bottom layer can be blocked layer by layer, so that the amount of wastewater sludge treated at the front end and the back end is independent of each other. With different amounts of sludge, the bottom pushing mechanism can be used to extract and discharge the sludge layer by layer. Finally, the amount of sludge extracted is used to determine the amount of substances decomposed by microorganisms in the wastewater in the corresponding area, so as to determine whether the pollutant content in the current wastewater meets the standard. This process can be completed automatically during the sludge discharge process, avoiding the need for special sampling and testing.

[0017] This white water recycling and treatment device for papermaking machines uses an oxygen injection component to directly spray external oxygen into the wastewater along with multiple bottom inclined plates, creating a uniform aerobic environment that facilitates the metabolic decomposition process of microorganisms. At the same time, the bottom docking mechanism enables the pushing mechanism to simultaneously extract all the sludge in the same row. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a portion of a white water recycling and treatment device for a paper machine according to the present invention; Figure 2 This is a side view of a white water recycling and treatment device for a paper machine according to the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the oxygen injection component of the present invention; Figure 5 This is a schematic diagram of the diffuser plate portion of the present invention; Figure 6 This is a schematic diagram of the pushing mechanism of the present invention; Figure 7 This is a schematic diagram of the structure of the extraction pipe end of the present invention; In the diagram: 1. Treatment tank; 2. Water injection pipe; 3. Baffle plate; 4. Flow interlayer; 5. Drain outlet; 6. Pushing mechanism; 7. Oxygen injection assembly; 8. Docking mechanism; 9. Base; 10. Strip hole; 11. Flow notch; 12. Bottom plate; 13. Docking pipe; 14. Fixed frame; 15. Rotating disk; 16. Side docking hole; 17. Torsion spring; 18. Lower protruding column; 19. Protruding plate; 20. Slide groove; 21. Top layer docking hole; 22. Extraction pipe; 23. Conveying channel; 24. Paddle; 25. Sliding dock; 26. Air inlet; 27. Diffusion pipe; 28. Diversion pipe; 29. ​​Bottom inclined plate; 30. Diffusion plate; 31. Spray hole; 32. Motor; 33. Lead screw; 34. Transmission frame; 35. Extraction port. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1 to 7 The present invention provides the following technical solution: a device for recycling and treating white water from a papermaking machine, comprising a treatment device body, wherein the treatment device body includes: The treatment tank 1, the pushing mechanism 6, the oxygen injection assembly 7 and the docking mechanism 8 are provided. The bottom of the treatment tank 1 is provided with a bottom plate 12, which is used to divide the interior of the treatment tank 1 into two spaces. The pushing mechanism 6 is installed at the bottom of the bottom plate 12. A motor 32 is installed at one end of the pushing mechanism 6 and the motor 32 is screwed to the bottom side of the treatment tank 1. An oxygen injection assembly 7 is inserted into the surface of the bottom plate 12. Multiple partitions 3 are provided inside the treatment tank 1. A flow interlayer 4 is provided between adjacent partitions 3. A diffuser plate 30 is provided inside each flow interlayer 4. The oxygen injection assembly 7 passes through the bottom of each diffuser plate 30 and is used to deliver oxygen into the wastewater inside the treatment tank 1. The bottom of the base plate 12 is provided with a plurality of docking mechanisms 8, and each row of docking mechanisms 8 is aligned with the upper flow interlayer 4. The pushing mechanism 6 connects to each row of docking mechanisms 8 in sequence through translational movement.

[0021] This treatment device is used to recycle white water from papermaking machines. In use, the white water from papermaking machines is directly injected into the treatment tank 1 through the water injection pipe 2 at the top, so that the wastewater can circulate along the flow jacket 4 in the treatment tank 1 and finally be discharged from the drain outlet 5 at the end. The discharge rate of wastewater is regulated by a valve installed on the drain outlet 5. Therefore, by controlling the discharge speed and the injection speed, the treatment time of the internally injected wastewater can be directly controlled.

[0022] During this process, the active sludge present in the wastewater can directly decompose dissolved organic matter (such as hemicellulose, lignin degradation products, starch, sizing agents, additive residues, etc.), colloidal substances, and some fine fibers in the water through microorganisms, and further produce settled sludge.

[0023] Therefore, by using the pushing mechanism 6 at the bottom of the base plate 12 in conjunction with the docking mechanism 8, the generated sludge can be extracted layer by layer. This process enables the discharge of sludge and allows the amount of sludge extracted to determine the content of the aforementioned impurities in the current wastewater, thereby enabling more flexible control of the treatment time and improving the efficiency of the treatment process.

[0024] The processing pool 1 further includes: Water injection pipe 2 and drain outlet 5, a strip hole 10 is provided on the side of the treatment pool 1, one side of the pushing mechanism 6 extends outward from the inside of the strip hole 10, and a water injection pipe 2 is connected to the top corner of the treatment pool 1. The treatment tank 1 is connected to a drain outlet 5 on its side, and a valve is installed on the surface of the drain outlet 5. Each of the partitions 3 has a flow gap 11 at one end. The wastewater inside the treatment tank 1 flows sequentially along each flow interlayer 4 and the flow gap 11 toward the drain outlet 5.

[0025] Multiple baffles 3 and a flow jacket 4 are set inside the treatment tank 1. This structure ensures that the injected wastewater can flow slowly and continuously inside the same treatment tank 1. During the flow, oxygenation and microbial decomposition and purification are achieved. Thus, the wastewater can be continuously injected and continuously discharged in the recycling process of white water from the paper machine, without the need for batch injection and discharge, making the purification process more efficient and convenient.

[0026] Specifically, inside the treatment tank 1, multiple baffles 3 and flow gaps 11 at the ends of each baffle 3 allow the wastewater injected into the water injection pipe 2 to flow directly along the flow interlayer 4 in a meandering manner. During this meandering flow, the introduced microorganisms and the bottom active sludge part achieve the decomposition and metabolic treatment of various degradable components in the water.

[0027] After the internal wastewater is completely decomposed, it can be discharged from the end drain outlet 5. The treatment time of the internal wastewater can be controlled by controlling the flow rate at the outlet.

[0028] In this embodiment, the oxygen injection component 7 includes: The diffuser 27, the conveying channel 23, and the bottom inclined plate 29 are provided. One end of the diffuser 27 is connected to an air inlet 26. Multiple conveying channels 23 are connected to the side of the diffuser 27. The bottom inclined plate 29 is installed at the bottom of the flow interlayer 4. The conveying channels 23 pass through the interior of each partition 3 and the bottom inclined plate 29 in sequence.

[0029] The diffuser plate 30 is disposed at the top of the bottom inclined plate 29. The surface of the diffuser plate 30 is provided with a plurality of spray holes 31. The interior of the diffuser pipe 27 is sequentially connected to the interior of the diversion pipe 28, the bottom inclined plate 29, the diffuser plate 30 and the spray holes 31. The side of the diffuser plate 30 is fixedly connected to the surface of the partition plate 3, and the oxygen injection assembly 7 is connected to an external oxygen supply device through the inflation port 26.

[0030] Specifically, oxygen is supplied to the diffusion pipe 27 through an external oxygen supply device, and then the airflow is delivered to the inside of the diversion pipe 28 through the diffusion pipe 27. In the diversion pipe 28, it is further delivered to the surface of the bottom inclined plate 29 and the diffusion plate 30, and finally the oxygen is sprayed outward from the nozzle 31 on the surface of the diffusion plate 30.

[0031] Each diffuser plate 30 is disposed inside the flow jacket 4 and is tilted upwards to spray oxygen, thereby accelerating the diffusion of the bottom active sludge portion to the top area and providing an effective aerobic environment for microorganisms to decompose impurities.

[0032] In this embodiment, the docking mechanism 8 includes a docking pipe 13, a fixed frame 14, and a rotating disk 15. The top end of the docking pipe 13 is connected to the interior of the flow interlayer 4, and the docking pipe 13 is located below the base plate 12. The fixed frame 14 is also welded to the bottom of the base plate 12, and a sliding groove 20 is provided on the side of the fixed frame 14.

[0033] The rotating disk 15 is integrally embedded inside the fixed frame 14, and the rotating disk 15 includes: The side docking hole 16, the top docking hole 21, and the lower protrusion 18 are provided. The side docking hole 16 is provided on both sides of the rotating disk 15, the top docking hole 21 is provided on the top of the rotating disk 15, and the lower protrusion 18 is integrally formed on the bottom of the rotating disk 15. The lower protrusion 18 has a protruding plate 19 welded to its side.

[0034] The bottom of the docking pipe 13 is connected to the interior of the rotating disk 15 through the top docking hole 21. A torsion spring 17 is sleeved on the surface of the lower protrusion 18. The top end of the torsion spring 17 is welded and fixed to the bottom of the fixed frame 14, and the bottom end of the torsion spring 17 is welded and fixed to the surface of the lower protrusion 18. The rotating disk 15 is connected to the interior of the slide groove 20 through the side docking hole 16, and the surface of the rotating disk 15 is in contact with the inner wall of the fixed frame 14.

[0035] Multiple bottom inclined plates 29 are provided on the inner side of the flow interlayer 4, and each bottom inclined plate 29 is connected to the oxygen injection component 7. With the help of the bottom inclined plate 29, the sludge that settles at the bottom layer can be blocked layer by layer, so that the amount of wastewater sludge treated at the front end and the back end is independent of each other. With different amounts of sludge, the bottom pushing mechanism 6 can be used to extract and discharge the sludge layer by layer. Finally, the amount of sludge extracted is used to determine the amount of substances decomposed by microorganisms in the wastewater in the corresponding area, so as to determine whether the pollutant content in the current wastewater meets the standard. This process can be completed automatically during the discharge of sludge, avoiding the process of special sampling and testing.

[0036] Specifically, the bottom of the flow interlayer 4 is connected to the fixed frame 14 below via the docking pipe 13. The rotating disk 15 installed inside the docking frame can block the docking pipe 13 at the top. In the initial state, the torsion spring 17 at the bottom pulls the entire lower protrusion 18 to rotate, thereby driving the rotating disk 15 to rotate until the side docking hole 16 is in contact with the inner wall of the fixed frame 14. Therefore, the end of the docking pipe 13 will be directly blocked by the entire rotating disk 15, preventing the sludge and wastewater at the top from being discharged directly from the bottom. Only after the rotating disc 15 is aligned with the side docking hole 16 and the pushing mechanism 6 can the internal sludge be discharged towards the bottom.

[0037] In this embodiment, the pushing mechanism 6 includes: The motor 32, lead screw 33, and transmission frame 34 are provided. The motor 32 is screwed to the outside of the treatment tank 1. The output end of the motor 32 is connected to the lead screw 33. The surface of the lead screw 33 is fitted with the transmission frame 34. The bottom of the transmission frame 34 is provided with a threaded hole, and the lead screw 33 passes through the inside of the threaded hole.

[0038] The push mechanism 6 also includes: The extraction pipe 22, the conveying channel 23, and the sliding interface 25 are provided. One end of the extraction pipe 22 is provided with an extraction port 35. The surface of the extraction pipe 22 is integrally formed with the conveying channel 23, and the top end of the conveying channel 23 is integrally formed with the sliding interface 25. A lever 24 is welded to the side of the conveying channel 23. The lever 24 is used to abut against the side of the convex plate 19, and the lever 24 pushes the convex plate 19 to rotate the lower convex column 18.

[0039] The transmission frame 34 is welded to the bottom of the extraction pipe 22, the extraction port 35 extends outward from the inside of the strip hole 10, and the end of the sliding interface 25 is used to be embedded into the inside of the slide groove 20. The interior of the rotating disk 15 is connected to the interior of the extraction port 35 via the side docking hole 16, the sliding docking interface 25, the conveying channel 23, and the extraction pipe 22.

[0040] The oxygen injection component 7 can directly inject external oxygen into the wastewater in conjunction with multiple bottom inclined plates 29, so that a uniform oxygen environment can be formed in the wastewater, which is conducive to the metabolic decomposition process of microorganisms. At the same time, with the help of the bottom docking mechanism 8, the pushing mechanism 6 can simultaneously extract all the sludge in the same row.

[0041] Specifically, after the control motor 32 rotates, it drives the transmission frame 34 to move through the lead screw 33. When the transmission frame 34 moves along the lead screw 33, it will simultaneously drive the top extraction pipe 22 to move. The extraction pipe 22 drives the surface conveying channel 23 and the sliding interface 25 to move, so that the sliding interface 25 can move along the inside of the fixed frame 14. As the conveying channel 23 moves, it also drives the side lever 24 to move. After the lever 24 hits one side of any protrusion 19, it will drive the lower protrusion 18 to rotate, thereby controlling the corresponding rotating disk 15 to rotate. This controls the side docking hole 16 on the rotating disk 15 to rotate towards the slide groove 20, and finally rotates the side docking hole 16 to align with the sliding interface 25 at the top of the conveying channel 23. At this time, the docking pipe 13 above the rotating disk 15 can directly convey the sludge in the corresponding area at the top towards the side sliding interface 25. After directly collecting the sludge inside the same row of flowing interlayer 4 through the above process, it will enter the extraction pipe 22 at the bottom along each conveying channel 23 of the row, and finally be extracted along the extraction port 35 at the end of the extraction pipe 22. By obtaining the amount of sludge extracted from the row, the amount of impurities decomposed by microorganisms inside the flowing interlayer 4 can be determined, thereby indirectly determining the impurity content of the wastewater inside the flowing interlayer 4.

[0042] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for recycling and treating white water from a papermaking machine, comprising a treatment device body, characterized in that, The processing device body includes: The treatment tank (1), the pushing mechanism (6), the oxygen injection assembly (7) and the docking mechanism (8) are provided. The bottom of the treatment tank (1) is provided with a bottom plate (12). The bottom plate (12) is used to divide the interior of the treatment tank (1) into two spaces. The pushing mechanism (6) is installed at the bottom of the bottom plate (12). A motor (32) is installed at one end of the pushing mechanism (6). The motor (32) is screwed to the bottom side of the treatment tank (1). An oxygen injection assembly (7) is inserted into the surface of the bottom plate (12). Multiple partitions (3) are provided on the inner side of the treatment tank (1). A flow jacket (4) is provided between adjacent partitions (3). A diffuser plate (30) is provided on the inner side of each flow jacket (4). The oxygen injection assembly (7) passes through the bottom of each diffuser plate (30) and is used to deliver oxygen to the wastewater inside the treatment tank (1). The bottom of the base plate (12) is provided with multiple docking mechanisms (8), and each row of docking mechanisms (8) is aligned with the upper flow interlayer (4). The pushing mechanism (6) is connected to each row of docking mechanisms (8) in sequence through translational movement.

2. The white water recycling and treatment device for papermaking machines according to claim 1, characterized in that, The processing pool (1) further includes: Water injection pipe (2) and drain outlet (5), a strip hole (10) is provided on the side of the treatment pool (1), one side of the pushing mechanism (6) extends outward from the inside of the strip hole (10), and a water injection pipe (2) is connected to the top corner of the treatment pool (1). The treatment tank (1) is connected to a drain outlet (5) on its side, and a valve is installed on the surface of the drain outlet (5). Each of the partitions (3) has a flow gap (11) at one end. The wastewater inside the treatment tank (1) flows sequentially along each flow interlayer (4) and the flow gap (11) toward the drain outlet (5).

3. The white water recycling and treatment device for papermaking machines according to claim 2, characterized in that, The oxygen injection assembly (7) includes: The diffusion pipe (27), the conveying channel (23), and the bottom inclined plate (29) are provided. One end of the diffusion pipe (27) is connected to an air inlet (26). Multiple conveying channels (23) are connected to the side of the diffusion pipe (27). The bottom inclined plate (29) is installed at the bottom of the flow interlayer (4). The conveying channel (23) passes through the interior of each partition (3) and the bottom inclined plate (29) in sequence.

4. The white water recycling and treatment device for papermaking machines according to claim 3, characterized in that: The diffuser plate (30) is located at the top of the bottom inclined plate (29), and the surface of the diffuser plate (30) is provided with a plurality of spray holes (31). The interior of the diffuser pipe (27) is connected in sequence to the interior of the diversion pipe (28), the bottom inclined plate (29), the diffuser plate (30) and the spray holes (31). The side of the diffuser plate (30) is fixedly connected to the surface of the partition plate (3), and the oxygen injection assembly (7) is connected to the external oxygen supply equipment through the air inlet (26).

5. A white water recycling and treatment device for papermaking machines according to claim 3, characterized in that: The docking mechanism (8) includes a docking pipe (13), a fixed frame (14) and a rotating disk (15). The top end of the docking pipe (13) is connected to the interior of the flow interlayer (4), and the docking pipe (13) is located below the bottom plate (12). The fixed frame (14) is also welded below the bottom plate (12), and the fixed frame (14) has a sliding groove (20) on its side.

6. The white water recycling and treatment device for papermaking machines according to claim 5, characterized in that, The rotating disk (15) is integrally embedded inside the fixed frame (14), and the rotating disk (15) includes: Side docking holes (16), top docking holes (21) and lower protrusions (18). The side docking holes (16) are opened on both sides of the rotating disk (15), the top docking holes (21) are opened on the top of the rotating disk (15), and the lower protrusions (18) are integrally formed on the bottom of the rotating disk (15). The lower protrusions (18) have protruding plates (19) welded to their sides.

7. A white water recycling and treatment device for papermaking machines according to claim 6, characterized in that: The bottom of the docking pipe (13) is connected to the interior of the rotating disk (15) through the top docking hole (21). A torsion spring (17) is sleeved on the surface of the lower protrusion (18). The top of the torsion spring (17) is welded to the bottom of the fixed frame (14), and the bottom of the torsion spring (17) is welded to the surface of the lower protrusion (18). The rotating disk (15) is connected to the interior of the slide groove (20) through the side docking hole (16), and the surface of the rotating disk (15) is in contact with the inner wall of the fixed frame (14).

8. A white water recycling and treatment device for a papermaking machine according to claim 6, characterized in that, The push mechanism (6) includes: The motor (32), lead screw (33) and transmission frame (34) are screwed to the outside of the treatment tank (1). The output end of the motor (32) is connected to the lead screw (33). The surface of the lead screw (33) is fitted with the transmission frame (34). The bottom of the transmission frame (34) is provided with a threaded hole, and the lead screw (33) passes through the inside of the threaded hole.

9. A white water recycling and treatment device for a papermaking machine according to claim 8, characterized in that, The push mechanism (6) also includes: The extraction pipe (22), the conveying channel (23), and the sliding interface (25) are provided. One end of the extraction pipe (22) is provided with an extraction port (35). The surface of the extraction pipe (22) is integrally formed with the conveying channel (23). The top end of the conveying channel (23) is integrally formed with the sliding interface (25). The side of the conveying channel (23) is welded with a lever (24), which is used to abut against the side of the convex plate (19), and the lever (24) pushes the convex plate (19) to rotate the lower convex column (18).

10. A white water recycling and treatment device for a papermaking machine according to claim 9, characterized in that: The transmission frame (34) is welded to the bottom of the extraction pipe (22), the extraction port (35) extends outward from the inside of the strip hole (10), and the end of the sliding interface (25) is used to be embedded into the inside of the groove (20); The interior of the rotating disk (15) is connected to the interior of the extraction port (35) through the side docking hole (16), the sliding dock (25), the conveying channel (23), and the extraction pipe (22) in sequence.

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