A polyester silk printing and dyeing wastewater treatment device

Abstract

The present application relates to the technical fields of wastewater treatment, in particular to a polyester printing and dyeing wastewater treatment device, comprising a treatment box, a mixing cylinder is arranged at the inner bottom of the treatment box, a filter cylinder is arranged at the inner top of the treatment box, a filter ring with filter holes is fixedly installed at the inner center of the filter cylinder, a surrounding brushing assembly is arranged in the filter ring; the surrounding brushing assembly is used for brushing and cleaning the impurities and silk threads blocked in the inner side of the filter holes of the filter ring, the cleaning brushes arranged in the surrounding brushing assembly can rotate in the inner side of the filter ring, and the cleaning brushes can also rotate by themselves in the inner side of the filter ring; the present application realizes thorough cleaning of the filter ring in three dimensions and without dead angle through the surrounding brushing assembly, greatly improves the cleaning efficiency and the filtering stability, realizes the extraordinary fast and uniform mixing of the reaction materials through the rotating stirring assembly, and thus significantly improves the reaction efficiency and thoroughness of the chemical treatment unit.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a device for treating wastewater from polyester filament dyeing and printing. Background Technology

[0002] Polyester dyeing and printing wastewater has a complex composition. Its treatment difficulty lies not only in the presence of dyes and auxiliaries that are difficult to degrade, but also in the large amount of ultrafine polyester filaments, fiber scraps, and viscous scale produced by chemical flocculation mixed in the wastewater. These impurities are easy to entangle and adsorb, posing a severe challenge to the core solid-liquid separation unit of the wastewater treatment system. Traditional treatment processes usually treat filtration and chemical neutralization mixing as independent steps, which has prominent problems of poor coupling and limited overall efficiency.

[0003] In the filtration stage, the cleaning methods of traditional filtration devices have fundamental defects. For precision filter rings, common cleaning methods include high-pressure water backwashing and simple fixed scrapers. High-pressure backwashing has limited effectiveness in removing filamentous fibers embedded deep in the pores, while fixed scrapers can only scrape in one direction, failing to effectively clean the inside of the pores and posing risks of cleaning dead corners and abrasion of the filter surface. More importantly, the cleaning process itself often causes secondary pollution. The removed impurities can easily re-clog adjacent filter pores or adhere to the cleaning tools, leading to a rapid decline in cleaning efficiency. In addition, in the mixing and reaction stage, rapid and uniform mixing of wastewater and neutralizing agents is a prerequisite for ensuring the effectiveness of subsequent sedimentation or deep treatment. Traditional agitators mostly use single-structured blades, mainly generating axial or radial flow fields, making it difficult to achieve sufficient microscopic contact between the agent and high-viscosity wastewater containing suspended fibers in a short time. The flow field generated by agitation has obvious dead zones, which can easily lead to local overconcentration of the agent or uneven reaction, affecting the neutralization effect. Incompletely reacted agents may even aggravate scaling and clogging of subsequent filtration units, greatly reducing the effectiveness of dyeing and printing wastewater treatment. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a device for treating wastewater from polyester filament dyeing and printing.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a polyester filament dyeing wastewater treatment device, including a treatment tank, a mixing cylinder arranged at the bottom of the treatment tank, a filter cylinder arranged at the top of the treatment tank, a filter ring with filter holes fixedly installed at the center of the filter cylinder, and a circumferential brush assembly arranged inside the filter ring. The surrounding brush assembly is used to clean the inside of the filter holes of the filter ring by brushing and cleaning impurities and filaments. The cleaning brush in the surrounding brush assembly can rotate inside the filter ring, and the cleaning brush itself can also rotate inside the filter ring. The surrounding brush assembly includes a fixed cylinder, a base ring, and a rotating disk.

[0006] A support cover is fixedly installed on the top of the filter cartridge. A rotary push assembly is set inside the support cover. The rotary push assembly is used to drive the cleaning brush to move up and down inside the filter ring. The rotary push assembly includes a rotary gear ring and a drive gear. The mixing drum is equipped with a rotating agitator. The arc-shaped agitator in the rotating agitator can move up and down inside the mixing drum, and can also rotate inside the mixing drum. The arc-shaped agitator stirs and mixes the filtered wastewater and the injected neutralization liquid. A ring-shaped cleaning frame is fixedly installed on the top of the support cover. Inside the ring-shaped cleaning frame is a rotating scraping component, which is used to scrape and clean the filaments and impurities adhering to the cleaning brush.

[0007] As a preferred embodiment of the present invention, the surrounding brush assembly further includes an arc-shaped flip plate and a triangular flip plate. A base ring is fixedly installed at the bottom of the fixed cylinder via a side frame. Several triangular grooves are evenly opened at the top of the base ring. Triangular flip plates are arranged in the triangular grooves and are fixedly installed on the side frame. A rotating disk is movably arranged at the bottom of the base ring. Connecting plates are fixedly installed around the top of the rotating disk. Connecting rods are movably connected to the top of each connecting plate. An arc-shaped flip plate is fixedly installed at one end of the connecting rod, and arc-shaped flip rods are fixedly installed at both ends of the arc-shaped flip plate. The arc-shaped flip rods move in the triangular grooves, and an arc-shaped cleaning plate is fixedly installed at the other end of the connecting rod.

[0008] The arc-shaped cleaning plate has a cleaning brush fixedly installed on the side away from the arc-shaped flip rod. The cleaning brush cleans the impurities and filaments clogging the filter holes of the filter ring. The bottom of the base ring has a T-shaped groove, in which a T-shaped slider is slidably connected. A rotating disk is fixedly installed at the bottom of the T-shaped slider. A servo motor is fixedly installed at the bottom of the fixed cylinder. A rotating plate is fixedly installed at the output end of the servo motor through a rotating shaft. The rotating plate is fixedly installed on the rotating disk. There are three sets of arc-shaped cleaning plates.

[0009] As a preferred embodiment of the present invention, the rotary pushing assembly further includes a rotary motor fixedly installed at the bottom of the support cover. An annular groove is provided inside the support cover, and an annular slider is slidably connected in the annular groove. A rotary toothed ring is fixedly installed on the top of the annular slider. Support plates are fixedly installed around the bottom of the support cover. Connecting rotating rods are movably connected to the top of each support plate, and one of the connecting rotating rods is fixedly installed at the output end of the rotary motor.

[0010] One end of each connecting rod is fixedly equipped with a drive gear, and the drive gear meshes movably with the rotating gear ring. The other end of each connecting rod is fixedly equipped with a first push arm, and the first push arm is movably connected to a second push arm. The first push arm and the second push arm are both movably located inside the rotating gear ring. A fixed plate is fixedly installed on the top of the fixed cylinder. Connecting plates are fixedly installed around the top of the fixed plate. The bottom of each second push arm is movably connected to the connecting plate, and the fixed plate is movably located inside the rotating gear ring.

[0011] As a preferred embodiment of the present invention, the bottom of the filter cylinder has several drainage holes on the outer periphery of the filter ring. The bottom of the filter cylinder is connected to an L-shaped drain pipe, which extends through to the outside of the treatment box. The top of the filter cylinder is connected to a water inlet pipe, which extends through to the outside of the treatment box. The rotating agitator includes a mixing plate. A stirring rod is fixedly installed at the bottom center of the rotating plate. The bottom of the stirring rod extends through to the inside of the mixing cylinder. An arc-shaped stirring plate is fixedly installed at the bottom end of the stirring rod. The top of the mixing cylinder is connected to an L-shaped feed hopper, and the top of the L-shaped feed hopper is located outside the treatment box. The arc-shaped stirring plate moves inside the mixing cylinder. The arc-shaped stirring plate has several agitation holes evenly distributed. Several mixing plates are evenly installed around the top of the arc-shaped stirring plate.

[0012] As a preferred embodiment of the present invention, the rotating scraping assembly further includes a first motor, a support groove is provided on the inner side of the annular cleaning frame, a support slider is slidably connected in the support groove, a cleaning ring is fixedly installed between the support sliders, a cleaning frame is fixedly installed on the inner side of the cleaning ring, a scraping brush is fixedly installed inside the cleaning frame, and a storage box is fixedly installed at the bottom of the cleaning frame. The scraping brush scrapes and cleans the filaments and impurities on the cleaning brush.

[0013] The annular cleaning frame is connected to a first motor via a motor plate. The output end of the first motor is connected to a support gear via a rotating shaft. A support tooth block is fixedly installed on the outer periphery of the cleaning ring, and the support gear and the support tooth block are in movable meshing.

[0014] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0015] In this invention, the cleaning efficiency and filtration stability are greatly improved by thoroughly cleaning the filter ring in three dimensions without any blind spots through the surrounding brush assembly. The cleaning brush generates a compound motion of revolution and rotation under the drive of the servo motor. The revolution ensures that the cleaning brush can cover the entire inner circumference of the filter ring without any omissions. At the same time, the rotation allows the bristles to probe into and rub the inner wall of the filter pores at different angles. This dynamic and multi-directional brushing action is particularly effective in removing filamentous fibers, viscous scale, or rigid particles deeply embedded in the pores, far exceeding the effect of single-direction brushing or static rinsing. In addition, the centrifugal agitation effect generated by the rotation can promptly throw off the impurities that have been brushed away, preventing them from accumulating between the bristles or re-clogging adjacent pores, ensuring the continuous high efficiency of the cleaning process and the long-term unobstructed flow of the filtration channel.

[0016] In this invention, a rotary push assembly is used to convert rotational motion into stable linear lifting with extremely high efficiency. The structure is compact and powerful. The classic parallel linkage mechanism is an ingenious motion conversion mechanism. When multiple fully synchronized first push arms perform circular motion, through the constraint and transmission of the second push arm, their motion is synthesized and forcibly converted into the pure linear lifting motion of the fixed disc. This purely mechanical conversion method has its trajectory uniquely determined by the geometric dimensions of the rods, resulting in high repeatability and positioning accuracy. It does not rely on sensor feedback and has strong anti-interference capabilities. The motor, gears, gear rings, guide rails, and connecting rods are highly integrated into a support cover, making the structure extremely compact. Yet, it can output a powerful thrust sufficient to drive the fixed cylinder and the entire internal cleaning assembly to lift and lower, demonstrating excellent power density and space utilization efficiency.

[0017] In this invention, the absolute synchronization of power and the balanced distribution of force flow among multiple points are achieved through a rotary drive component, ensuring the extreme smoothness and precision of the output motion. A single rotary motor drives a driving gear, which meshes with a large rotating gear ring. This allows the rotation of the gear ring to synchronously drive all other driven gears to rotate at the same angular velocity and phase, fundamentally eliminating the risks of accumulated errors, jitter, or interference caused by the difficulty in achieving electrical synchronization with multiple independent drives. The strict synchronous rotation of all connecting rods provides a perfectly coordinated input foundation for subsequent linkage mechanisms. At the same time, the annular slider at the bottom of the rotating gear ring and the annular groove on the support cover form a closed-loop heavy-duty guide rail, which not only provides rotational guidance but, more importantly, can evenly bear and disperse the huge radial force and workload generated by gear meshing. This ensures the rigidity and geometric accuracy of the entire transmission core during operation, laying a solid foundation for the stability of the final output motion.

[0018] In this invention, an exceptionally rapid and uniform mixing of reactants is achieved through a rotating agitator, significantly improving the reaction efficiency and thoroughness of the chemical treatment unit. The specially designed agitation holes on the arc-shaped agitator plate not only reduce rotational resistance but also continuously generate strong local shear flow and micro-vortices during the motion. This creates ideal conditions for rapid contact and mass transfer between the neutralizing liquid and wastewater molecules. At the same time, the vertically installed mixing plate drives the fluid to generate a macroscopic axial circulation, effectively avoiding reaction dead zones and solid sedimentation. This synergistic effect of macroscopic circulation and microscopic shear ensures that the neutralizing agent can diffuse to every corner of the wastewater in a very short time and react fully and uniformly with the pollutants. The result is not only an increase in the single-batch treatment speed but, more importantly, a guarantee of the consistency and stability of the reaction endpoint, making the effluent quality more controllable and reducing the load on subsequent fine filtration stages.

[0019] In this invention, the filter ring is automatically and periodically cleaned by the cleaning brush in the surrounding brush assembly, which can actively prevent the filter holes from clogging. This keeps the efficiency of the filter unit close to its initial optimal state. The solid waste can be smoothly settled and collected by gravity or with very low water flow, and discharged directionally through a dedicated L-shaped drain pipe, making it easy to clean up.

[0020] In this invention, the precise meshing of the gear and rack driven by the first motor in the rotating scraping assembly, combined with the rigid constraint of the annular guide rail, enables the scraping brush to perform circumferential full-coverage combing of the cleaning brush along a preset track. This ensures that the contact pressure and angle of each scrape are constant and controllable, thereby thoroughly removing deeply wrapped and firmly adhered filaments and impurities from the base of the bristles, while minimizing damage to the cleaning brush itself due to uneven force or improper operation. This regular, high-quality self-cleaning allows the cleaning brush to always be in near-new working condition when cleaning the filter ring, avoiding the reduction in cleaning power, cross-contamination, or becoming a new source of blockage due to its own contamination. This ensures the long-term, continuous, and efficient operation of the main filtration process.

[0021] In this invention, the problem of secondary pollution commonly encountered in automatic cleaning is solved by using a rotating scraping component. The impurities peeled off by the scraping brush are immediately caught by the opening of the storage box below, which moves synchronously with it, achieving zero delay and zero dispersion effect of collection as soon as they are generated. This completely eliminates the possibility of impurities splashing, scattering, or falling back into the cleaned area during the cleaning process, keeping the working environment of the main unit clean and reducing the workload of subsequent cleaning. For scenarios involving impurities that are easy to disperse and difficult to handle, such as textile fibers, chemical flocs, or biological slime, this invention achieves the strict requirements of controllable cleaning process and no secondary pollution. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the processing box structure of the present invention; Figure 3 This is a schematic diagram of the arc-shaped stirring plate of the present invention; Figure 4 This is a schematic diagram of the structure of the filter ring of the present invention; Figure 5 This is a schematic diagram of the structure of the base ring of the present invention; Figure 6 This is a schematic diagram of the structure of the fixed cylinder of the present invention; Figure 7 This is a schematic diagram of the arc-shaped flip plate of the present invention; Figure 8 This is a schematic diagram of the structure of the cleaning brush of the present invention; Figure 9 This is a schematic diagram of the structure of the support cover of the present invention; Figure 10 This is a schematic diagram of the structure of the annular cleaning frame of the present invention; Figure 11 This is a schematic diagram of the cleaning ring structure of the present invention.

[0023] The components are as follows: 10. Processing box; 11. Mixing cylinder; 12. Filter cylinder; 13. Filter ring; 14. Drainage hole; 15. L-shaped drain pipe; 16. Water inlet pipe; 17. L-shaped feed hopper; 20. Fixed cylinder; 21. Side frame; 22. Base ring; 23. Triangular groove; 24. Triangular flip plate; 25. Rotary disk; 26. T-shaped slide; 27. T-shaped slider; 28. Servo motor; 29. ​​Rotating plate; 30. Connecting plate; 31. Connecting rotating rod; 32. Arc-shaped flip plate; 33. Arc-shaped flip rod; 34. Arc-shaped cleaning plate; 35. Cleaning brush; 40. Support cover; 41. Annular groove; 42. Annular slider; 43. Rotating gear ring; 44. Support plate; 45. Rotary motor; 50. Connecting rod; 51. Drive gear; 52. First push arm; 53. Second push arm; 54. Fixed plate; 55. Connecting plate; 60. Arc-shaped stirring plate; 61. Stirring rod; 62. Stirring hole; 63. Mixing plate; 70. Annular cleaning frame; 71. First motor; 72. Support gear; 73. Support groove; 74. Support slider; 75. Cleaning ring; 76. Cleaning frame; 77. Scraper brush; 78. Storage box; 79. Supporting tooth block. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0025] Example: Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a polyester filament dyeing wastewater treatment device includes a treatment tank 10, a mixing cylinder 11 at the bottom of the treatment tank 10, and a filter cylinder 12 at the top of the treatment tank 10. A filter ring 13 with filter holes is fixedly installed at the center of the filter cylinder 12. A surrounding brush assembly is provided inside the filter ring 13. The surrounding brush assembly is used to brush and clean the impurities and threads clogging the filter holes of the filter ring 13. A cleaning brush 35 provided in the surrounding brush assembly can rotate inside the filter ring 13, and the cleaning brush 35 itself can also rotate inside the filter ring 13. The surrounding brush assembly includes a fixed cylinder 20, a base ring 22, a rotating disk 25, an arc-shaped flipping plate 32, and a triangular... The bottom of the rotating plate 24 and the fixed cylinder 20 is fixedly installed with a base ring 22 via a side frame 21. The top of the base ring 22 is evenly provided with several triangular grooves 23. Triangular rotating plates 24 are provided in the triangular grooves 23 and are fixedly installed on the side frame 21. A rotating disk 25 is movably provided at the bottom of the base ring 22. A connecting plate 30 is fixedly installed around the top of the rotating disk 25. A connecting rod 31 is movably connected to the top of each connecting plate 30. An arc-shaped rotating plate 32 is fixedly installed at one end of the connecting rod 31, and an arc-shaped rotating rod 33 is fixedly installed at both ends of the arc-shaped rotating plate 32. The arc-shaped rotating rod 33 moves in the triangular grooves 23. An arc-shaped cleaning plate 34 is fixedly installed at the other end of the connecting rod 31.

[0026] See Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7A cleaning brush 35 is fixedly installed on the side of the arc-shaped cleaning plate 34 away from the arc-shaped flip rod 33. The cleaning brush 35 is made of rubber. The cleaning brush 35 cleans the impurities and filaments that clog the inside of the filter holes of the filter ring 13. A T-shaped groove 26 is opened at the bottom of the base ring 22. A T-shaped slider 27 is slidably connected in the T-shaped groove 26. The rotating disk 25 is fixedly installed at the bottom of the T-shaped slider 27. A servo motor 28 is fixedly installed at the bottom of the fixed cylinder 20. A rotating plate 29 is fixedly installed at the output end of the servo motor 28 through a rotating shaft. The rotating plate 29 is fixedly installed on the rotating disk 25. There are three sets of arc-shaped cleaning plates 34.

[0027] See Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 When the filter ring 13 needs cleaning, the servo motor 28, which is fixedly installed at the bottom of the fixed cylinder 20, is activated. The servo motor 28 drives the rotating plate 29 at its output end to rotate via a rotating shaft. Since the rotating plate 29 is fixedly installed on the rotating disk 25, the rotation of the rotating disk 25 is precisely activated. The rotating disk 25 slides with the T-shaped slider 27 at its bottom and the T-shaped groove 26 at the bottom of the base ring 22, ensuring the smoothness of the rotation and the accuracy of the trajectory, and preventing radial deviation. The top of the rotating disk 25 is hinged to the rotating rod 31 via connecting plates 30. When the rotating disk 25 rotates, it drives all the connecting plates 30 to revolve. The uniform circular motion of the rotating disk 25 is converted into the composite motion of the arc-shaped cleaning plate 34. When the arc-shaped flipping rod 33 is inserted into the triangular groove 23 at the top of the base ring 22, the specific shape of the triangular groove 23 will convert the horizontal rotation of the arc-shaped flipping rod 33 into the flipping action of the arc-shaped flipping plate 32. This allows the arc-shaped cleaning plate 34 to both revolve around the rotating disk 25 and rotate on its own axis. This allows the cleaning brush 35 fixed to the arc-shaped cleaning plate 34 to repeatedly brush the inner surface of each filter hole of the filter ring 13 at the optimal angle and pressure, physically removing impurities and residual threads that are blocked in the holes. This not only achieves horizontal brushing of the filter ring 13, but also the rotation of the cleaning brush 35 can dislodge the brushed impurities, preventing them from accumulating and re-clogging the holes, and promoting their discharge downward with the subsequent rinsing flow.

[0028] See Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9A support cover 40 is fixedly installed on the top of the filter cartridge 12. A rotary push assembly is provided inside the support cover 40. The rotary push assembly is used to drive the cleaning brush 35 to move up and down inside the filter ring 13. The rotary push assembly includes a rotary gear ring 43, a drive gear 51, and a rotary motor 45 fixedly installed at the bottom of the support cover 40. An annular groove 41 is opened inside the support cover 40. An annular slider 42 is slidably connected in the annular groove 41. The rotary gear ring 43 is fixedly installed on the top of the annular slider 42. Support plates 44 are fixedly installed around the bottom of the support cover 40. Connecting rotating rods 50 are movably connected to the top of each support plate 44. One of the connecting rotating rods 50 is fixedly installed at the output end of the rotary motor 45.

[0029] See Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 One end of each connecting rod 50 is fixedly equipped with a drive gear 51, and the drive gear 51 is movably meshed with the rotating gear ring 43. The other end of each connecting rod 50 is fixedly equipped with a first push arm 52. The first push arm 52 is movably connected to a second push arm 53, and the first push arm 52 and the second push arm 53 are movably inside the rotating gear ring 43. The top of the fixed cylinder 20 is fixedly equipped with a fixed plate 54. The top of the fixed plate 54 is fixedly equipped with a connecting plate 55. The bottom of the second push arm 53 is movably connected to the connecting plate 55, and the fixed plate 54 is movably inside the rotating gear ring 43.

[0030] See Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9The output of the rotary motor 45 directly drives the connecting rod 50, which is fixedly connected to it, to rotate. The connecting rod 50 drives the drive gear 51 to move, and the drive gear 51 meshes to drive the rotating gear ring 43 to move. During the rotation of the rotating gear ring 43, it drives the other three drive gears 51 to rotate synchronously. The rotating gear ring 43, through the annular slider 42 at its bottom, cooperates with the annular groove 41 in the support cover 40, ensuring that it can only rotate freely along a precise circular track without deviation or jamming. When the motor drives the active connecting rod 50 and its drive gear 51 to rotate, the annular groove 41 and the annular slider 42 play a key role in bearing and guiding in this process. They bear the radial force generated by the gear meshing, ensuring the rotation... The stability and concentricity of the rotating gear ring 43 during rotation are the foundation for the smooth and precise operation of the entire transmission system. A first push arm 52 is fixedly installed at the other end of each connecting rod 50. The end of the first push arm 52 is movably connected to the second push arm 53, and the bottom of all the second push arms 53 is hinged to the connecting plate 55 on the top of the fixed disk 54, forming a classic parallel linkage mechanism. When all the connecting rods 50 rotate completely synchronously under the drive of the rotating motor 45, the drive gear 51, and the rotating gear ring 43, the first push arms 52 at their ends also make synchronous circular motion, which in turn, in conjunction with the second push arms 53, drives the fixed disk 54 and the fixed cylinder 20 to make stable lifting and lowering motion inside the filter ring 13.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The mixing cylinder 11 is equipped with a rotating agitator. An arc-shaped agitator plate 60 within the rotating agitator plate 11 can move up and down and rotate within the mixing cylinder 11. The arc-shaped agitator plate 60 agitates and mixes the filtered wastewater and the injected neutralizing liquid. Several drainage holes 14 are provided at the bottom of the filter cylinder 12 around the filter ring 13. An L-shaped drain pipe 15 is connected to the bottom of the filter cylinder 12 and extends through to the outside of the treatment tank 10. A water inlet pipe 16 is connected to the top of the filter cylinder 12 and extends through to... On the outside of the processing box 10, the rotating agitator includes a mixing plate 63. A stirring rod 61 is fixedly installed at the bottom center of the rotating plate 29. The bottom of the stirring rod 61 extends through into the interior of the mixing cylinder 11. An arc-shaped stirring plate 60 is fixedly installed at the bottom end of the stirring rod 61. An L-shaped feed hopper 17 is connected to the top of the mixing cylinder 11. The top of the L-shaped feed hopper 17 is located outside the processing box 10. The arc-shaped stirring plate 60 moves inside the mixing cylinder 11. The arc-shaped stirring plate 60 is evenly provided with several stirring holes 62. Several mixing plates 63 are evenly installed around the top of the arc-shaped stirring plate 60.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The neutralizing liquid is injected into the mixing cylinder 11 through the L-shaped feed hopper 17 located outside the treatment tank 10. The rotating agitator above the mixing cylinder 11 is activated, and the arc-shaped agitator plate 60 at the bottom of the agitator rod 61 and the multiple mixing plates 63 installed on the top rotate stably inside the mixing cylinder 11. The unique agitation holes 62 on the arc-shaped agitator plate 60 can effectively reduce rotational resistance and form stronger shear flow and local eddies in the liquid. The vertically installed mixing plates 63 mainly generate axial circulation flow. The combination of the two achieves all-round, high-intensity turbulent mixing and shear dispersion of materials, ensuring that the neutralizing liquid is evenly distributed in the liquid, so that the neutralizing liquid and the filtered wastewater are fully mixed and stirred, which facilitates subsequent fine filtration and treatment. In addition, the cleaning brush 35 regularly brushes the filter ring 13 to remove the clumps of filter residue. The removed thick waste residue settles to the bottom of the filter cylinder 12 under gravity or water flow and is discharged through the L-shaped drain pipe 15, completing the cleaning of solid waste.

[0033] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 and Figure 11 A ring-shaped cleaning frame 70 is fixedly installed on the top of the support cover 40. A rotating scraping assembly is provided inside the ring-shaped cleaning frame 70. The rotating scraping assembly is used to scrape and clean the filaments and impurities adhering to the cleaning brush 35. The rotating scraping assembly also includes a first motor 71. A support groove 73 is opened on the inner side of the ring-shaped cleaning frame 70. A support slider 74 is slidably connected in the support groove 73. A cleaning ring 75 is fixedly installed between the support sliders 74. A cleaning frame 76 is fixedly installed inside the cleaning ring 75. A scraping brush 77 is fixedly installed inside the cleaning frame 76. A storage box 78 is fixedly installed at the bottom of the cleaning frame 76. The scraping brush 77 scrapes and cleans the filaments and impurities on the cleaning brush 35. The ring-shaped cleaning frame 70 is connected to the first motor 71 through a motor plate. The output end of the first motor 71 is connected to a support gear 72 through a rotating shaft. A support tooth block 79 is fixedly installed on the outer periphery of the cleaning ring 75, and the support gear 72 and the support tooth block 79 are movably meshed.

[0034] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 and Figure 11When cleaning brush 35 needs to be cleaned, the first motor 71 is started. The output of the first motor 71 drives the support gear 72 to rotate. Since the support gear 72 meshes with the support tooth block 79 fixedly installed on the outer circumference of the cleaning ring 75, the rotation of the gear is converted into a smooth and controllable circumferential driving force on the entire cleaning ring 75. The support groove 73 and the support slider 74 form a complete annular guide rail. On the one hand, it bears the weight of the cleaning ring 75 and all its components. On the other hand, it provides precise motion guidance, ensuring that the cleaning ring 75 can only move smoothly along the predetermined circumferential track under drive, without radial jump or axial deviation, thus ensuring the stability and consistency of the brushing operation. Under the drive of the cleaning ring 75, the cleaning frame 76 fixed on its inner side... The scraping brush 77 installed inside the cleaning rack 76 moves in a circular motion in sync. During the movement, the scraping brush 77 maintains a preset contact pressure and angle with the cleaning brush 35. As the scraping brush 77 moves in a circular motion, it acts like a moving comb, effectively scraping and combing away the filaments, fibers, and sticky impurities that were entangled and adsorbed by the cleaning brush 35 during previous work from between the bristles or on the surface of the cleaning brush 35. This provides deep maintenance for the cleaning brush 35 and restores its cleaning ability. The scraped-off impurities do not fall randomly, but are received and temporarily stored in real time by the storage box 78 installed at the bottom of the cleaning rack 76. The storage box 78 moves as a whole with the cleaning rack 76, and its opening faces the scraping area, forming an efficient collection mode of scraping and collecting simultaneously, completely eliminating secondary pollution generated during the cleaning process.

[0035] Working principle: Dyeing wastewater enters the filter cylinder 12 through the inlet pipe 16 and passes through the filter holes on the filter ring 13. After filtration, the wastewater is discharged into the mixing cylinder 11 below through the drain holes 14 on the outer periphery of the filter ring 13. During this process, suspended solids in the wastewater, especially easily tangled polyester threads, are trapped inside the filter ring 13. At this time, the surrounding brush assembly driven by the servo motor 28 begins to play a key role.

[0036] The servo motor 28 starts, driving the rotating plate 29 and the rotating disk 25 to rotate synchronously. The rotating disk 25 rotates stably in the T-shaped groove 26 of the base ring 22 through the T-shaped slider 27 at the bottom, thereby driving the connecting plate 30 at the top to make a circular motion. This motion is transmitted to the three sets of arc-shaped cleaning plates 34 and the cleaning brushes 35 at their ends through the connecting rod 31, so that the cleaning brushes 35 begin to rotate and brush along the inner wall of the filter ring 13 for cleaning.

[0037] During rotation, the connecting plate 30 synchronously drives the connecting rod 31, the arc-shaped cleaning plate 34, and the arc-shaped flipping plate 32 to move. When the arc-shaped flipping rod 33 moves to the triangular groove 23 at the top of the base ring 22 and contacts the inclined surface of the fixed triangular flipping plate 24, it generates a periodic deflection under the constraint of the inclined surface. This deflection forces the arc-shaped cleaning plate 34 to rotate axially while revolving around the center of gravity through the connecting rod 31. Therefore, the cleaning brush 35 forms a compound motion of revolution and rotation on the inner wall of the filter ring 13, which can effectively peel off and remove impurities and tangled threads that are blocked on the edge and inside of the filter holes, ensuring filtration efficiency. The heavier impurities brushed off are discharged through the L-shaped drain pipe 15, while the lighter impurities containing threads are temporarily attached to the cleaning brush 35.

[0038] The filtered wastewater undergoes chemical treatment in the mixing drum 11 with the neutralizing agent injected through the L-shaped feed hopper 17. At this time, the rotating plate 29 driving the brush assembly rotates simultaneously with the bottom stirring rod 61. The arc-shaped stirring plate 60 fixed at the bottom of the stirring rod 61 and the stirring plate at the top of it rotate accordingly, performing preliminary mixing and stirring of the wastewater and the agent.

[0039] To further enhance cleaning and mixing effects, the rotary drive assembly periodically engages, activating the rotary motor 45 and driving the connected connecting rod 50 and drive gear 51 to rotate. The drive gear 51 meshes with a rotating gear ring 43 installed in the annular groove 41 via the annular slider 42, thereby driving the rotating gear ring 43 to rotate. The rotation of the rotating gear ring 43 synchronously drives all other drive gears 51 and connecting rods 50 to rotate. The rotational motion of each connecting rod 50 is converted into rotational motion of the connecting rods through a linkage mechanism composed of the first push arm 52 and the second push arm 53. The periodic and stable lifting and lowering of the fixed disk 54, through the connecting plate 55 and the fixed cylinder 20, drives the entire surrounding brush assembly to make stable lifting and lowering movements inside the filter ring 13. At the same time, this lifting and lowering movement is transmitted to the arc-shaped stirring plate 60 at the bottom through the stirring rod 61, so that it can simultaneously achieve a compound movement of rotation and up-and-down reciprocating motion in the mixing cylinder 11. The stirring holes 62 on the arc-shaped stirring plate 60 and the stirring plate at the top work together to greatly enhance fluid shear and three-dimensional turbulence, so that the reagent and wastewater are mixed quickly and evenly, significantly improving the reaction efficiency.

[0040] During the operation of the cleaning brush 35, filaments and sticky impurities brushed off from the filter ring 13 accumulate on its surface. When the surrounding brush assembly rises to its highest point under the action of the rotating push assembly, the cleaning brush 35 completely enters the area of ​​the annular cleaning frame 70. At this time, the rotating scraping assembly is activated: the first motor 71 drives the support gear 72 to rotate, which meshes with the support tooth block 79 on the outer periphery of the cleaning ring 75, causing the cleaning ring 75 to rotate slowly along the support slide groove 73. The scraping brush 77 installed on the cleaning frame 76 inside the cleaning ring 75 makes contact with the cleaning brush 35 that has risen to this point, scraping and combing it to thoroughly remove the filaments and residual impurities that are firmly attached to the cleaning brush 35. The scraped waste falls directly into the collection box 78 at the bottom of the cleaning frame 76 for centralized collection, which is convenient for regular cleaning, thereby ensuring the long-lasting and effective cleaning ability of the cleaning brush 35 itself.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A polyester filament dyeing wastewater treatment device, comprising a treatment tank (10), a mixing cylinder (11) disposed at the bottom of the treatment tank (10), and a filter cylinder (12) disposed at the top of the treatment tank (10), characterized in that, A filter ring (13) with filter holes is fixedly installed at the center of the filter cylinder (12), and a circumferential brush assembly is provided inside the filter ring (13). The surrounding brush assembly is used to clean the impurities and filaments clogging the inside of the filter holes of the filter ring (13). The cleaning brush (35) in the surrounding brush assembly can rotate inside the filter ring (13), and the cleaning brush (35) itself can also rotate inside the filter ring (13). The surrounding brush assembly includes a fixed cylinder (20), a base ring (22), and a rotating disk (25). A support cover (40) is fixedly installed on the top of the filter cartridge (12). A rotary push assembly is provided inside the support cover (40). The rotary push assembly is used to drive the cleaning brush (35) to move up and down inside the filter ring (13). The rotary push assembly includes a rotary gear ring (43) and a drive gear (51). The mixing drum (11) is equipped with a rotating agitator. The arc-shaped agitator (60) in the rotating agitator can move up and down inside the mixing drum (11) and can also rotate inside the mixing drum (11). The arc-shaped agitator (60) agitates and mixes the filtered wastewater and the injected neutralizing liquid. A ring-shaped cleaning frame (70) is fixedly installed on the top of the support cover (40). A rotating scraping component is provided inside the ring-shaped cleaning frame (70). The rotating scraping component is used to scrape and clean the filaments and impurities adhering to the cleaning brush (35).

2. The polyester filament dyeing and printing wastewater treatment device according to claim 1, characterized in that, The surrounding brushing assembly also includes an arc-shaped flip plate (32) and a triangular flip plate (24). The bottom of the fixed cylinder (20) is fixedly installed with a base ring (22) via a side frame (21). The top of the base ring (22) is evenly provided with several triangular grooves (23). The triangular grooves (23) are provided with triangular flip plates (24), and the triangular flip plates (24) are fixedly installed on the side frame (21). A rotating disk (25) is movably installed at the bottom of the base ring (22). A connecting plate (30) is fixedly installed around the top of the rotating disk (25). A connecting rod (31) is movably connected to the top of the connecting plate (30). An arc-shaped flip plate (32) is fixedly installed at one end of the connecting rod (31), and an arc-shaped flip rod (33) is fixedly installed at both ends of the arc-shaped flip plate (32). The arc-shaped flip rod (33) moves in the triangular groove (23), and an arc-shaped cleaning plate (34) is fixedly installed at the other end of the connecting rod (31).

3. The polyester filament dyeing and printing wastewater treatment device according to claim 2, characterized in that, The arc-shaped cleaning plate (34) has a cleaning brush (35) fixedly installed on the side away from the arc-shaped flip rod (33). The cleaning brush (35) cleans the impurities and filaments that are blocked inside the filter holes of the filter ring (13). The bottom of the base ring (22) is provided with a T-shaped groove (26). A T-shaped slider (27) is slidably connected in the T-shaped groove (26), and the rotating disk (25) is fixedly installed at the bottom of the T-shaped slider (27). A servo motor (28) is fixedly installed at the bottom of the fixed cylinder (20). A rotating plate (29) is fixedly installed at the output end of the servo motor (28) through a rotating shaft. The rotating plate (29) is fixedly installed on the rotating disk (25). There are three sets of arc-shaped cleaning plates (34).

4. The polyester filament dyeing and printing wastewater treatment device according to claim 1, characterized in that, The rotary drive assembly also includes a rotary motor (45) fixedly installed at the bottom of the support cover (40). An annular groove (41) is provided inside the support cover (40). An annular slider (42) is slidably connected in the annular groove (41), and a rotary toothed ring (43) is fixedly installed on the top of the annular slider (42). Support plates (44) are fixedly installed around the inner bottom of the support cover (40). The top of each support plate (44) is movably connected to a connecting rod (50), and one of the connecting rods (50) is fixedly installed at the output end of the rotary motor (45).

5. The polyester filament dyeing and printing wastewater treatment device according to claim 4, characterized in that, One end of each connecting rod (50) is fixedly equipped with a drive gear (51), and the drive gear (51) is movably meshed with the rotating gear ring (43). The other end of each connecting rod (50) is fixedly equipped with a first push arm (52), and the first push arm (52) is movably connected with a second push arm (53). The first push arm (52) and the second push arm (53) are both movably inside the rotating gear ring (43). A fixed plate (54) is fixedly installed on the top of the fixed cylinder (20). A connecting plate (55) is fixedly installed around the top of the fixed plate (54). The bottom of the second push arm (53) is movably connected to the connecting plate (55). The fixed plate (54) is movably inside the rotating toothed ring (43).

6. The polyester filament dyeing and printing wastewater treatment device according to claim 3, characterized in that, The bottom of the filter cylinder (12) has several drainage holes (14) on the outer periphery of the filter ring (13). The bottom of the filter cylinder (12) is connected to an L-shaped drain pipe (15), which extends through to the outside of the treatment box (10). The top of the filter cylinder (12) is connected to a water inlet pipe (16), which extends through to the outside of the treatment box (10). The rotating agitator includes a mixing plate (63). A stirring rod (61) is fixedly installed at the bottom center of the rotating plate (29). The bottom of the stirring rod (61) extends through to the inside of the mixing cylinder (11), and an arc-shaped stirring plate (60) is fixedly installed at the bottom end of the stirring rod (61). The top of the mixing cylinder (11) is connected to an L-shaped feed hopper (17), and the top of the L-shaped feed hopper (17) is located outside the processing box (10). The arc-shaped stirring plate (60) moves inside the mixing cylinder (11). The arc-shaped stirring plate (60) is evenly provided with several stirring holes (62), and several mixing plates (63) are evenly installed around the top of the arc-shaped stirring plate (60).

7. The polyester filament dyeing and printing wastewater treatment device according to claim 1, characterized in that, The rotating scraping assembly also includes a first motor (71), a support groove (73) is provided on the inner side of the annular cleaning frame (70), a support slider (74) is slidably connected in the support groove (73), a cleaning ring (75) is fixedly installed between the support sliders (74), and a cleaning frame (76) is fixedly installed on the inner side of the cleaning ring (75). A scraping brush (77) is fixedly installed inside the cleaning rack (76), and a storage box (78) is fixedly installed at the bottom of the cleaning rack (76). The scraping brush (77) scrapes and cleans the threads and impurities on the cleaning brush (35).

8. The polyester filament dyeing and printing wastewater treatment device according to claim 7, characterized in that, The annular cleaning frame (70) is connected to a first motor (71) via a motor plate. The output end of the first motor (71) is connected to a support gear (72) via a rotating shaft. A support tooth block (79) is fixedly installed on the outer periphery of the cleaning ring (75), and the support gear (72) and the support tooth block (79) are in active meshing.

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