A paper pulp papermaking sludge treatment device

Abstract

The present application belongs to the technical field of sludge treatment, in particular to a paper pulp papermaking sludge treatment device, which comprises a flocculation tank, a fishing mechanism, a drying mechanism, a backflow mechanism, a percussion mechanism and a turbulence mechanism; the fishing mechanism comprises a mounting frame, a conveying belt and a cutting plate, the mounting frame is fixedly installed on the outer wall of the flocculation tank, the cutting plate is fixedly installed on the outer wall of the conveying belt, and the conveying belt is rotationally arranged on the inner wall of the mounting frame; the drying mechanism comprises a mounting cover and a heating pipe, the mounting cover is fixedly installed on the outer wall of the mounting frame, and the heating pipe is arranged in the mounting cover; the backflow mechanism is used for controlling the backflow of the gas in the mounting cover to the flocculation tank; the percussion mechanism comprises a mounting plate and a percussion rod elastically mounted on the outer wall of the mounting plate, and the mounting plate is fixedly installed on the inner wall of the mounting cover; through the cooperation of the above-mentioned structures, the consumption of reagents and energy consumption is reduced, the accumulation of the sludge is avoided to raise the liquid level and pollute the supernatant, the load of the subsequent treatment unit is reduced, and the stability of the sludge concentration effect is ensured.

Description

Technical Field

[0001] This invention belongs to the field of sludge treatment technology, specifically a pulp and paper sludge treatment device. Background Technology

[0002] The pulp and paper industry generates a large amount of sludge, which mainly contains pulp fiber residue, fillers, colloidal particles, and biochemical microbial flora. It is characterized by high water content, complex composition, and large volume. Untreated sludge discharge not only wastes resources but also pollutes the water and soil environment. Therefore, sludge treatment is the key to the industry's environmental protection standards and resource recycling. Sludge thickening, as a core pre-process, aims to reduce the water content and volume of sludge to prepare for subsequent dewatering and treatment processes. Currently, the mainstream process uses flocculation tank thickening, which involves adding flocculants such as polyaluminum chloride and polyacrylamide. Through charge neutralization and bridging, tiny particles are aggregated to form flocs, achieving initial solid-liquid separation.

[0003] During the flocculation reaction, the amount of flocs increases continuously and accumulates in the flocculation tank. Paper sludge has a high content of solid particles such as fibers and fillers, which are easily aggregated rapidly under the action of flocculants. At the same time, subsequent flocs tend to adhere to the flocs formed in the early stage, forming a larger volume of deposits.

[0004] Excessive flocculent buildup can severely impact flocculation efficiency. First, it disrupts the reaction environment within the tank, as accumulated flocculents obstruct water circulation, leading to uneven mixing of flocculant and unreacted sludge. This results in excessively high flocculant concentrations in some areas, while other areas suffer from insufficient flocculant, hindering effective flocculation. Second, excessively large flocculents are prone to breakage due to their own weight and water flow disturbance. The resulting small flocs are difficult to re-aggregate, reducing solid-liquid separation efficiency. Third, accumulated flocculents raise the tank's liquid level, prolong sludge retention time, increase energy and reagent consumption, and increase suspended particulate matter in the supernatant, affecting effluent quality and increasing the load on subsequent treatment units. Ultimately, this leads to poor sludge thickening, restricting the overall operating efficiency and compliance of the treatment system.

[0005] Therefore, the present invention provides a pulp and paper sludge treatment device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a pulp and paper sludge treatment device of the present invention, comprising a flocculation tank, a catching mechanism, a drying mechanism, a reflux mechanism, a percussion mechanism and a turbulence mechanism; The fishing mechanism includes a mounting frame, a conveyor belt, and a cutting plate. The mounting frame is fixedly installed on the outer wall of the flocculation tank, the cutting plate is fixedly installed on the outer wall of the conveyor belt, and the conveyor belt is rotatably installed on the inner wall of the mounting frame. The drying mechanism includes a mounting cover and a heating tube. The mounting cover is fixedly installed on the outer wall of the mounting frame, and the heating tube is located inside the mounting cover. The reflux mechanism is used to control the return of gas inside the mounting hood to the flocculation tank; The striking mechanism includes a mounting plate and a striking rod that is elastically mounted on the outer wall of the mounting plate. The mounting plate is fixedly mounted on the inner wall of the mounting cover. The turbulence-disrupting mechanism includes an installation roller and a turbulence-disrupting plate. The turbulence-disrupting plate is fixedly installed on the outer wall of the installation roller, while the installation roller is rotatably installed on the inner wall of the flocculation tank. The rotation of the installation roller is controlled by a reflux mechanism.

[0008] Preferably, the reflux mechanism includes a control pump, a transfer pipe, a mounting cylinder, and an exhaust pipe; The control pump is fixedly installed on the outer wall of the flocculation tank, and the input end of the control pump is connected to the inner cavity of the mounting cover via a pipe. The transfer pipe is fixedly installed on the outer wall of the flocculation tank, and the mounting cylinder is rotatably installed on the inner wall of the flocculation tank. The output end of the control pump is connected to the transfer pipe, and one end of the transfer pipe is connected to the axial end of the mounting cylinder through a sealed bearing. The exhaust pipe is fixedly installed on the inner wall of the mounting cylinder, and the exhaust pipe and the inner cavity of the mounting cylinder are interconnected.

[0009] Preferably, a support frame is mounted on the upper end of the mounting plate via an elastic element, and the outer wall of the striking rod is fixedly connected to the outer wall of the support frame; A transmission rod is rotatably mounted on the inner wall of the mounting cover, a mounting plate is fixedly mounted on the outer wall of the transmission rod, and a control block is fixedly mounted on the outer wall of the mounting plate. The control block attracts the striking rod through elasticity.

[0010] Preferably, a guide frame is fixedly installed on the inner wall of the mounting cover, an exhaust fan is fixedly installed on the inner wall of the guide frame, and a heating tube is fixedly installed on the inner wall of the guide frame. A baffle plate is fixedly installed on the inner wall of the mounting cover, a suction cover is fixedly installed on the outer wall of the mounting cover, a suction pipe is fixedly installed on the outer wall of the suction cover, and the suction pipe is connected to the input end of the control pump. The baffle is located between the suction hood and the guide frame, and an elastic curtain is fixedly installed on the outer wall of the mounting hood.

[0011] Preferably, a control motor is fixedly installed on the outer wall of the flocculation tank, and a tensioning roller is rotatably installed on the inner wall of the mounting frame. Multiple tensioning rollers are provided, and the multiple tensioning rollers are used to tension the conveyor belt. The output shaft of the control motor controls the rotation of one of the tensioning rollers through a transmission component.

[0012] Preferably, a guide cylinder is fixedly installed on the outer wall of the mounting frame, and the inner cavity of the guide cylinder is in communication with the inner cavity of the suction tube; A control plug is elastically installed in the inner cavity of the guide cylinder. A transmission sleeve is fixedly installed on the outer wall of the control plug. A ball is fixedly installed on the inner wall of the transmission sleeve. One end of the transmission rod extends into the inner cavity of the guide cylinder and has a spiral groove. The ball slides in conjunction with the spiral groove.

[0013] Preferably, a limit frame is slidably installed on the bottom surface of the mounting frame, a support cylinder is fixedly installed on the outer wall of the limit frame, a connecting rod is elastically installed on the inner wall of the support cylinder, a kneading plate is fixedly installed on the upper end face of the connecting rod, and the outer wall of the kneading plate is in contact with the outer wall of the conveyor belt. An arc-shaped plate is fixedly installed on the outer wall of the kneading board; The inner wall of the flocculation tank is fixedly installed with a guide rail, and the inner wall of the guide rail is flexibly installed with a connecting plate. The outer wall of the connecting plate is fixedly connected to the outer wall of the limit frame. A control cam is fixedly installed on the outer wall of the mounting cylinder, a control rod is fixedly installed on the outer wall of the connecting plate, and a contact plate is fixedly installed on the outer wall of the control rod. The outer wall of the contact plate slides against the outer wall of the control cam.

[0014] The beneficial effects of this invention are as follows: 1. This invention achieves simultaneous flocculation and harvesting by incorporating a conveyor belt, a cutting plate, and a baffle plate. This precisely addresses the issue of floc accumulation affecting treatment efficiency. The conveyor belt continuously moves the cutting plate, promptly removing the generated flocs from the flocculation tank and preventing floc breakage and uneven mixing due to excessive accumulation. Simultaneously, the movement of the cutting plate creates gentle turbulence, which, combined with the stirring effect of the baffle plate, ensures more uniform mixing of flocculant and sludge, preventing localized imbalances in reagent concentration and improving solid-liquid separation efficiency. This setup eliminates the need for additional waiting time for the flocculation cycle, shortening treatment time and reducing reagent and energy consumption. It also prevents accumulated material from raising the liquid level and contaminating the supernatant, reducing the load on subsequent treatment units and ensuring stable sludge thickening. This helps the device efficiently achieve environmental compliance and resource recovery goals.

[0015] 2. This invention constructs a multi-structure linkage energy circulation and cleaning mechanism by setting up a control pump, an exhaust pipe, and a control cam, thereby extending and improving the overall process performance. The control pump draws in the hot air generated during drying, which is then backflushed through the exhaust pipe to drive the turbulence structure, achieving waste heat recovery and power self-sufficiency. No additional power equipment is needed to drive the turbulence, significantly reducing energy consumption. The control cam rotates synchronously with the turbulence structure, driving the rubbing plate to reciprocate and wash the conveyor belt, thoroughly cleaning residual sludge in the permeable pores, preventing pore blockage, and ensuring long-term stable operation of the conveyor belt. At the same time, the auxiliary turbulence generated by the rubbing action further optimizes the flocculation reaction environment, balancing energy utilization and equipment maintenance, strengthening the synergy of each process, extending the service life of the device, and improving the economy and stability of sludge treatment. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation of the mounting cover in this invention; Figure 3 This is a schematic diagram of the installation of the elastic curtain in this invention; Figure 4 This is a schematic diagram of the installation of the striking rod in this invention; Figure 5 This is a schematic diagram of the internal structure of the feed tube in this invention; Figure 6 This is a schematic diagram of the kneading board in this invention; Figure 7 This is a schematic diagram of the installation of the connecting rod in this invention; Figure 8 This is a schematic diagram of the exhaust pipe structure in this invention.

[0018] In the diagram: 1. Flocculation tank; 2. Transfer pipe; 3. Cutting plate; 4. Control pump; 5. Heating pipe; 6. Mounting frame; 7. Control motor; 8. Suction pipe; 9. Guide cylinder; 10. Suction hood; 11. Mounting cover; 12. Guide frame; 13. Exhaust fan; 14. Conveyor belt; 15. Guide rail; 16. Baffle plate; 17. Mounting roller; 18. Connecting plate; 19. Tensioning roller; 20. Baffle plate; 21. Elastic 21. Curtain; 22. Mounting plate; 23. Knocking rod; 24. Support frame; 25. Mounting disc; 26. Control block; 27. Transmission rod; 28. Control plug; 29. ​​Transmission sleeve; 30. Spiral groove; 31. Ball bearing; 32. Arc plate; 33. Support cylinder; 34. Connecting rod; 35. Limiting frame; 36. Contact plate; 37. Exhaust pipe; 38. Control cam; 39. Mounting cylinder; 40. Control rod; 41. Kneading plate. 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] like Figures 1 to 8 As shown, the pulp and paper sludge treatment device of the present invention includes a flocculation tank 1, a catching mechanism, a drying mechanism, a reflux mechanism, a percussion mechanism, and a turbulence mechanism.

[0021] The fishing mechanism includes a mounting frame 6, a conveyor belt 14, and a cutting plate 3. The mounting frame 6 is fixedly installed on the outer wall of the flocculation tank 1, wherein the bottom of the mounting frame 6 is below the liquid surface of the flocculation tank 1. In this embodiment, the mounting frame 6 has a Z-shaped structure.

[0022] The cutting plate 3 is fixedly installed on the outer wall of the conveyor belt 14, wherein both the conveyor belt 14 and the cutting plate 3 are made of water-permeable material.

[0023] The conveyor belt 14 is rotatably mounted on the inner wall of the mounting frame 6. The control motor 7 is fixedly mounted on the outer wall of the flocculation tank 1. Tensioning rollers 19 are rotatably mounted on the inner wall of the mounting frame 6. Multiple tensioning rollers 19 are provided. Multiple tensioning rollers 19 are used to tension the conveyor belt 14. The radial outer wall of the tensioning roller 19 is in close contact with the inner wall of the conveyor belt 14.

[0024] The output shaft of the control motor 7 controls the rotation of one of the tension rollers 19 through a transmission component. In this embodiment, the transmission component is a belt and a pulley. The control motor 7 drives the tension roller 19 to rotate through the belt and pulley, thereby controlling the movement of the conveyor belt 14.

[0025] In the process of thickening and flocculating sludge wastewater, the pulp and paper sludge to be treated is first introduced into flocculation tank 1, and then polyaluminum chloride and polyacrylamide flocculants are added to the tank. With the help of the charge neutralization and bridging flocculation effect of the agents, the small solid particles such as dispersed fiber residues, fillers, colloidal particles and biochemical microbial flora in the sludge are aggregated to gradually form flocs with a certain strength and particle size. This achieves the initial solid-liquid separation of sludge and water, and achieves the purpose of thickening the sludge by reducing its water content and volume, laying the foundation for subsequent simultaneous harvesting and dewatering treatment processes.

[0026] During the flocculation process, the control motor 7 fixed on the outer wall of the flocculation tank 1 is started. The output shaft of the control motor 7 drives the tension roller 19 to rotate. Since multiple tension rollers 19 are in close contact with the inner wall of the conveyor belt 14 and play a tensioning role, the rotation of the tension roller 19 can drive the conveyor belt 14 to move stably along the mounting frame 6. The bottom of the mounting frame 6 is located below the liquid surface of the flocculation tank 1 and can contact the flocs generated in the tank. The permeable material intercepting plate 3 fixed on the outer wall of the conveyor belt 14 moves with the conveyor belt 14 and can intercept and carry the flocs on and below the liquid surface. At the same time, the permeable material can filter out the water entrained, avoiding excessive water. Finally, the intercepted flocs are removed from the flocculation tank 1 by the operation of the conveyor belt 14, realizing the synchronous operation of the flocculation process and the harvesting process.

[0027] Within the flocculation tank 1, the conveyor belt 14 drives the permeable material intercepting plate 3 to simultaneously capture flocs. This not only utilizes the intercepting and bearing function of the intercepting plate 3 to promptly remove the generated flocs from the tank, avoiding problems such as floc breakage and reduced solid-liquid separation efficiency caused by excessive accumulation of flocs in the tank, but also creates a gentle turbulence effect through the continuous movement of the conveyor belt 14 and the intercepting plate 3. This breaks the limitation of a single water flow state in the tank, promotes more uniform mixing of flocculant and unreacted sludge, avoids localized excessive or insufficient concentration of the agent, and improves the overall flocculation and concentration quality.

[0028] The drying mechanism includes a mounting cover 11 and a heating tube 5. The mounting cover 11 is fixedly installed on the outer wall of the mounting frame 6, and the heating tube 5 is disposed inside the mounting cover 11. In this embodiment, the heating tube 5 is a common resistance heating tube, which is used to heat the air inside the mounting cover 11, thereby initially drying the flocculent material on the surface of the conveyor belt 14.

[0029] The reflux mechanism is used to control the reflux of gas inside the mounting hood 11 back into the flocculation tank 1. For drying, it can make the air heated by the heating pipe 5 inside the mounting hood 11 form a circulating airflow, which accelerates the removal of water vapor evaporated from the flocculants on the surface of the conveyor belt 14, and avoids excessive humidity inside the mounting hood 11, which weakens the drying efficiency of the heating pipe 5. At the same time, it recovers the residual heat in the airflow, reduces the energy consumption of the heating pipe 5, and improves the stability of the initial drying of the flocculants. For flocculation, the refluxed warm gas enters the flocculation tank 1 and can gently raise the temperature of the sludge in the tank, accelerating the reaction rate between the flocculant and the sludge particles.

[0030] The tapping mechanism includes a mounting plate 22 and a tapping rod 23 elastically mounted on the outer wall of the mounting plate 22. The mounting plate 22 is fixedly mounted on the inner wall of the mounting cover 11. The mounting plate 22 is located between the annular conveyor belts 14. After the conveyor belts 14 pass through the dry area inside the mounting cover 11, they are unloaded. At this time, by pulling the tapping rod 23 and then releasing it, the tapping rod 23 is reset by elastic control, tapping the conveyor belts 14 and generating vibration. This can effectively shake off the flocculent material that has not completely fallen off the surface of the conveyor belts 14, ensuring thorough unloading, improving the recycling rate of flocculent material, and avoiding material waste. It can also clear the water-permeable pores of the conveyor belts 14 through vibration, preventing residual flocculent material from clogging the pores and affecting the water permeability of the subsequent fishing process, and ensuring the stable fishing effect of the conveyor belts 14 and the cutting plate 3.

[0031] The turbulence mechanism includes a mounting roller 17 and a turbulence plate 16. The turbulence plate 16 is fixedly installed on the outer wall of the mounting roller 17. Multiple turbulence plates 16 are evenly arranged in a ring along the axis of the mounting roller 17.

[0032] The mounting roller 17 is rotatably mounted on the inner wall of the flocculation tank 1. The rotation of the mounting roller 17 is controlled by the reflux mechanism. By rotating the mounting roller 17, the baffle plate 16 rotates. While the baffle plate 16 stirs the flocculation tank 1, it pushes the sewage in the flocculation tank 1 towards the position of the conveyor belt 14.

[0033] The stirring action further breaks the limitation of static water flow in flocculation tank 1. Combined with the turbulence effect of conveyor belt 14 and interceptor plate 3, it allows the flocculant and sludge particles to mix more thoroughly and evenly, accelerating the flocculation reaction rate. At the same time, it avoids local accumulation, clumping, or dead spots in the settling of flocs, ensuring the stability and uniformity of floc formation. The directional pushing action towards conveyor belt 14 can actively push the flocs generated in the tank to the catching area, making it easier for the flocs to be intercepted and captured by the interceptor plate 3 on the outer wall of conveyor belt 14. This avoids incomplete catching due to flocs spreading or settling far from the catching range, greatly improving the floc catching efficiency and recovery rate. At the same time, it reduces the residence time of flocs in the tank, reduces the risk of floc breakage, strengthens the synergistic linkage of flocculation, turbulence, and catching, and optimizes the overall sludge treatment efficiency.

[0034] In a preferred embodiment of the present invention, the reflux mechanism includes a control pump 4, a transfer pipe 2, a mounting cylinder 39, and an exhaust pipe 37.

[0035] The control pump 4 is fixedly installed on the outer wall of the flocculation tank 1. The input end of the control pump 4 is connected to the inner cavity of the mounting cover 11 through a pipe, thereby drawing hot air from inside the mounting cover 11 through the control pump 4.

[0036] The adapter pipe 2 is fixedly installed on the outer wall of the flocculation tank 1, and the mounting cylinder 39 is rotatably installed on the inner wall of the flocculation tank 1. The axial end of the mounting roller 17 is fixedly connected to the axial end of the mounting cylinder 39. Rotating the mounting cylinder 39 drives the mounting roller 17 to rotate synchronously, thereby controlling the rotation of the baffle plate 16.

[0037] The output end of the control pump 4 is connected to the transfer pipe 2. One end of the transfer pipe 2 is connected to the axial end of the mounting cylinder 39 through a sealed bearing. The control pump 4 delivers gas toward the inner cavity of the transfer pipe 2 and the mounting cylinder 39.

[0038] The exhaust pipe 37 is fixedly installed on the inner wall of the mounting cylinder 39, and the exhaust pipe 37 and the inner cavity of the mounting cylinder 39 are interconnected. The exhaust end of the exhaust pipe 37 is inclined. When the control pump 4 delivers gas, the gas is exhausted through the exhaust pipe 37. The back pressure is used to control the rotation of the mounting cylinder 39 and the mounting roller 17 to achieve turbulence in the inner cavity of the flocculation tank 1.

[0039] The upper end of the mounting plate 22 is fitted with a support frame 24 via an elastic element. The outer wall of the striking rod 23 is fixedly connected to the outer wall of the support frame 24, thereby achieving an elastic connection between the striking rod 23 and the mounting plate 22.

[0040] A transmission rod 27 is rotatably mounted on the inner wall of the mounting cover 11, and a mounting plate 25 is fixedly mounted on the outer wall of the transmission rod 27. Rotating the transmission rod 27 drives the mounting plate 25 to rotate.

[0041] A control block 26 is fixedly installed on the outer wall of the mounting plate 25. The control block 26 is attracted to the striking rod 23 by elasticity. When the mounting plate 25 rotates, the control block 26 rotates.

[0042] The rotation of the transmission rod 27 drives the mounting plate 25 to rotate synchronously, and the control block 26 fixed on the outer wall of the mounting plate 25 moves in a circular motion accordingly. When the control block 26 rotates to a position close to the striking rod 23, the two attract each other through elastic force, thereby pulling the striking rod 23 and the support frame 24 connected to the striking rod 23 to move synchronously and stretching the elastic element. When the control block 26 rotates with the mounting plate 25 to a position away from the striking rod 23, the attraction between the two disappears, and the rebound force of the elastic element drives the support frame 24 and the striking rod 23 to quickly return to their original positions. The striking rod 23 then strikes the conveyor belt 14 and generates vibration. As the transmission rod 27 continues to rotate, the control block 26 cyclically moves closer to and further away from the striking rod 23, so that the striking rod 23 forms a continuous and stable strike on the conveyor belt 14.

[0043] A guide frame 12 is fixedly installed on the inner wall of the mounting cover 11. An exhaust fan 13 is fixedly installed on the inner wall of the guide frame 12. A heating pipe 5 is fixedly installed on the inner wall of the guide frame 12. The airflow is heated by the heating pipe 5 and then blown by the exhaust fan 13 and hot air is blown by the conveyor belt 14, thereby improving the efficiency of flocculant drying.

[0044] A baffle plate 20 is fixedly installed on the inner wall of the mounting cover 11, and a suction cover 10 is fixedly installed on the outer wall of the mounting cover 11. A suction pipe 8 is fixedly installed on the outer wall of the suction cover 10. The suction pipe 8 is connected to the input end of the control pump 4, so as to facilitate the control pump 4 to draw air from the inside of the mounting cover 11.

[0045] The baffle plate 20 is located between the suction hood 10 and the guide frame 12 to prevent the hot air discharged from the guide frame 12 from being discharged directly through the suction hood 10.

[0046] An elastic curtain 21 is fixedly installed on the outer wall of the mounting cover 11. The elastic curtain 21 is made of elastic material, and its other end is attached to the outer wall of the conveyor belt 14. It is used to prevent air from entering the other end of the mounting cover 11 when the suction cover 10 is suctioning, thereby improving the efficiency of suctioning hot air.

[0047] In a preferred embodiment of the present invention, a guide cylinder 9 is fixedly installed on the outer wall of the mounting frame 6. The inner cavity of the guide cylinder 9 is connected to the inner cavity of the suction tube 8, so that the air pressure in the inner cavities of the guide cylinder 9 and the suction tube 8 is equal.

[0048] The inner cavity of the guide cylinder 9 is elastically fitted with a control plug 28, and the outer wall of the control plug 28 is sealed and fitted with the inner wall of the guide cylinder 9.

[0049] A transmission sleeve 29 is fixedly installed on the outer wall of the control plug 28, and the sliding control plug 28 drives the transmission sleeve 29 to slide synchronously.

[0050] The inner wall of the transmission sleeve 29 is fixedly installed with ball bearings 31. One end of the transmission rod 27 extends into the inner cavity of the guide cylinder 9 and has a spiral groove 30. The ball bearings 31 slide in the spiral groove 30, and the transmission sleeve 29 slides back and forth. The transmission rod 27 is controlled to deflect back and forth by the cooperation of the spiral groove 30 and the ball bearings 31, thereby controlling the rotation of the mounting plate 25 so as to control the striking rod 23 to strike.

[0051] When the control pump 4 is working, the output power of the control pump 4 is adjusted back and forth, and the air pressure on the side of the transmission sleeve 29 near the suction pipe 8 is adjusted back and forth, which in turn drives the control plug 28 to slide back and forth. Through the control plug 28 driving the transmission sleeve 29 to slide back and forth, the rotation of the transmission rod 27 is controlled.

[0052] A limiting frame 35 is slidably installed on the bottom surface of the mounting bracket 6. A support cylinder 33 is fixedly installed on the outer wall of the limiting frame 35. A connecting rod 34 is elastically installed on the inner wall of the support cylinder 33. A spring is fixedly installed on the bottom surface of the connecting rod 34. The other end of the spring is fixed to the bottom surface of the support cylinder 33.

[0053] A kneading plate 41 is fixedly installed on the upper end face of the connecting rod 34. The outer wall of the kneading plate 41 is in contact with the outer wall of the conveyor belt 14. The elastic force of the connecting rod 34 pushes the kneading plate 41, causing the kneading plate 41 to tend to fit into the conveyor belt 14.

[0054] An arc-shaped plate 32 is fixedly installed on the outer wall of the kneading plate 41. After the cutting plate 3 moves to fit with the arc-shaped plate 32, the conveyor belt 14 continues to move. The cutting plate 3 lifts the arc-shaped plate 32 and the kneading plate 41 synchronously to prevent the kneading plate 41 from obstructing the movement of the conveyor belt 14.

[0055] A guide rail 15 is fixedly installed on the inner wall of the flocculation tank 1. A connecting plate 18 is elastically installed on the inner wall of the guide rail 15. The outer wall of the connecting plate 18 is fixedly connected to the outer wall of the limiting frame 35. The sliding adjustment of the connecting plate 18 drives the limiting frame 35 to slide, thereby controlling the sliding of the support cylinder 33 and the connecting rod 34, thereby controlling the kneading plate 41 to knead the surface of the conveyor belt 14 below the liquid surface.

[0056] A control cam 38 is fixedly installed on the outer wall of the mounting cylinder 39. When the mounting cylinder 39 rotates, it drives the control cam 38 to rotate synchronously.

[0057] A control rod 40 is fixedly installed on the outer wall of the connecting plate 18, and a contact plate 36 is fixedly installed on the outer wall of the control rod 40. The outer wall of the contact plate 36 slides against the outer wall of the control cam 38. When the control cam 38 rotates, it pushes the contact plate 36, which, in conjunction with the elastic force received by the connecting plate 18, controls the kneading plate 41 to slide back and forth.

[0058] The reciprocating sliding of the rubbing plate 41 can wash away the fine sludge and flocs remaining in the permeable pores of the conveyor belt 14, preventing pore blockage and ensuring its permeability and the catching efficiency of the intercepting plate 3. The water below the liquid surface can buffer the rubbing force and prevent damage to the conveyor belt 14. At the same time, the reciprocating rubbing action of the rubbing plate 41 can create slight turbulence below the liquid surface, which, combined with the turbulence effect of the baffle plate 16 and the conveyor belt 14, further promotes the uniform mixing of flocculant and sludge and accelerates floc formation.

[0059] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0060] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulp and paper sludge treatment device, characterized in that: Includes a flocculation tank (1), a fishing mechanism, a drying mechanism, a reflux mechanism, a tapping mechanism, and a turbulence mechanism; The fishing mechanism includes a mounting frame (6), a conveyor belt (14) and a cutting plate (3). The mounting frame (6) is fixedly installed on the outer wall of the flocculation tank (1), and the cutting plate (3) is fixedly installed on the outer wall of the conveyor belt (14). The conveyor belt (14) is rotatably installed on the inner wall of the mounting frame (6). The drying mechanism includes a mounting cover (11) and a heating tube (5). The mounting cover (11) is fixedly installed on the outer wall of the mounting frame (6), and the heating tube (5) is disposed inside the mounting cover (11). The reflux mechanism is used to control the reflux of gas inside the mounting cover (11) back into the flocculation tank (1); The striking mechanism includes a mounting plate (22) and a striking rod (23) elastically mounted on the outer wall of the mounting plate (22), wherein the mounting plate (22) is fixedly mounted on the inner wall of the mounting cover (11); The turbulence mechanism includes an installation roller (17) and a turbulence plate (16). The turbulence plate (16) is fixedly installed on the outer wall of the installation roller (17). The installation roller (17) is rotatably installed on the inner wall of the flocculation tank (1). The rotation of the installation roller (17) is controlled by a reflux mechanism. The reflux mechanism includes a control pump (4), a transfer pipe (2), an installation cylinder (39), and an exhaust pipe (37); the control pump (4) is fixedly installed on the outer wall of the flocculation tank (1), and the input end of the control pump (4) is connected to the inner cavity of the installation cover (11); The transfer pipe (2) is fixedly installed on the outer wall of the flocculation tank (1), the mounting cylinder (39) is rotatably installed on the inner wall of the flocculation tank (1), the axial end of the mounting roller (17) is fixedly connected to the axial end of the mounting cylinder (39), the output end of the control pump (4) is connected to the transfer pipe (2), and one end of the transfer pipe (2) is connected to the axial end of the mounting cylinder (39) through a sealed bearing. The exhaust pipe (37) is fixedly installed on the inner wall of the mounting cylinder (39), and the exhaust pipe (37) and the inner cavity of the mounting cylinder (39) are interconnected. The exhaust end of the exhaust pipe (37) is inclined. When the control pump (4) delivers gas, the gas is exhausted through the exhaust pipe (37). The counter-current force is used to control the rotation of the mounting cylinder (39) and the mounting roller (17). The upper end of the mounting plate (22) is fitted with a support frame (24) via an elastic element, and the outer wall of the striking rod (23) is fixedly connected to the outer wall of the support frame (24); the inner wall of the mounting cover (11) is rotatably fitted with a transmission rod (27), the outer wall of the transmission rod (27) is fixedly fitted with a mounting plate (25), the outer wall of the mounting plate (25) is fixedly fitted with a control block (26), and the control block (26) attracts the striking rod (23) through elastic force; A guide frame (12) is fixedly installed on the inner wall of the mounting cover (11), an exhaust fan (13) is fixedly installed on the inner wall of the guide frame (12), and the heating pipe (5) is fixedly installed on the inner wall of the guide frame (12). A baffle plate (20) is fixedly installed on the inner wall of the mounting cover (11), a suction cover (10) is fixedly installed on the outer wall of the mounting cover (11), a suction pipe (8) is fixedly installed on the outer wall of the suction cover (10), and the suction pipe (8) is connected to the input end of the control pump (4). The baffle plate (20) is located between the suction hood (10) and the flow guide frame (12), and an elastic curtain (21) is fixedly installed on the outer wall of the mounting cover (11). A guide cylinder (9) is fixedly installed on the outer wall of the mounting bracket (6), and the inner cavity of the guide cylinder (9) is connected to the inner cavity of the suction tube (8). The inner cavity of the guide cylinder (9) is elastically fitted with a control plug (28), the outer wall of the control plug (28) is fixedly fitted with a transmission sleeve (29), the inner wall of the transmission sleeve (29) is fixedly fitted with a ball (31), one end of the transmission rod (27) extends into the inner cavity of the guide cylinder (9) and is provided with a spiral groove (30), and the ball (31) slides in cooperation with the spiral groove (30).

2. The pulp and paper sludge treatment device according to claim 1, characterized in that: A control motor (7) is fixedly installed on the outer wall of the flocculation tank (1), and a tensioning roller (19) is rotatably installed on the inner wall of the mounting frame (6). Multiple tensioning rollers (19) are provided, and multiple tensioning rollers (19) are used to tension the conveyor belt (14). The output shaft of the control motor (7) controls one of the tensioning rollers (19) to rotate through the transmission component.

3. The pulp and paper sludge treatment device according to claim 2, characterized in that: A limiting frame (35) is slidably installed on the bottom surface of the mounting frame (6). A support cylinder (33) is fixedly installed on the outer wall of the limiting frame (35). A connecting rod (34) is elastically installed on the inner wall of the support cylinder (33). A kneading plate (41) is fixedly installed on the upper end face of the connecting rod (34). The outer wall of the kneading plate (41) is in contact with the outer wall of the conveyor belt (14). An arc-shaped plate (32) is fixedly installed on the outer wall of the kneading board (41); The inner wall of the flocculation tank (1) is fixedly installed with a guide rail (15), and the inner wall of the guide rail (15) is elastically installed with a connecting plate (18). The outer wall of the connecting plate (18) is fixedly connected to the outer wall of the limiting frame (35). A control cam (38) is fixedly installed on the outer wall of the mounting cylinder (39), a control rod (40) is fixedly installed on the outer wall of the connecting plate (18), a contact plate (36) is fixedly installed on the outer wall of the control rod (40), and the outer wall of the contact plate (36) slides against the outer wall of the control cam (38).

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