Self-circulation anti-blocking flushing device for dehumidifying pipeline of PTA (pure terephthalic acid) filter press

Abstract

The invention relates to a self-circulation anti-blocking flushing device for a dehumidification pipeline of a PTA filter press, and relates to the technical field of pipeline cleaning. Comprising a supporting ring arranged in a pipeline, a through hole is formed in the supporting ring, and a first gate is installed in the through hole. A supporting ring is arranged on the rotating shaft, a storage barrel is arranged on one side of the supporting ring, a control ring is rotatably mounted on the side, away from the supporting ring, of the storage barrel, and a cleaning part is arranged on the control ring. The cleaning block is driven to rotate around the axis of the pipeline and rotate by itself, the contact area and friction force of the cleaning block and the pipe wall are greatly increased, stubborn solid impurities such as PT acid with high adhesive force can be more efficiently polished and removed, and the problem that stubborn residues are difficult to treat through flushing of a traditional spray head is solved. The supporting ring can move along the pipeline and be cleaned in a segmented mode, and different areas of the pipeline can be covered by matching with rotation and position adjustment of the lantern ring and the check block.

Description

Technical Field

[0001] This invention relates to the technical field of pipeline cleaning, and in particular to a self-circulating anti-clogging flushing device for the dehumidification pipeline of a PTA filter press. Background Technology

[0002] When a filter press filters and dewaters PTA slurry, it forces the liquid through the filter cloth under pressure, generating a large amount of moisture-containing gas, which may contain trace amounts of PTA dust and volatile organic compounds. The core function of the dehumidification gas pipeline is to remove this moisture from inside the filter press in a timely manner, preventing its accumulation from affecting the dryness of the filter cake and filtration efficiency.

[0003] In PTA production, the moisture-carrying gas generated by the filter press during slurry drying contains a large amount of PT acid. During transportation, PT acid is prone to precipitate and block pipelines and equipment, leading to increased downstream pressure. In severe cases, it can trigger the filter press to trip, threatening the stable operation of the unit.

[0004] The commonly used nozzle flushing in the industry has obvious limitations: First, it is not effective at flushing solid residues with strong adhesion, such as PT acid, and is easily affected by distance and angle, resulting in dead corners, which can lead to wall formation and blockage; Second, the water flow cannot carry away the flushed impurities, which flow with the water and accumulate at bends, valves and other places due to changes in flow velocity, which may cause new blockages as the amount increases.

[0005] Chinese Patent CN118649964A discloses a hydraulic pipeline flushing device, relating to the field of pipeline cleaning technology. It includes a first mounting base and a second mounting base, which are hinged together by a stabilizing plate. An installation assembly is rotatably mounted on the end of the first mounting base away from the second mounting base. Spray nozzles are evenly spaced along the circumference at the edge of the installation assembly. The installation assembly drives multiple spray nozzles to rotate within the hydraulic pipeline, thus cleaning the inner wall of the hydraulic pipeline. Through the cooperation between the first mounting base, the installation assembly, and the spray nozzles, with the nozzles mounted at acute angles at the edge of the installation assembly, the drive motor drives the spray nozzles to rotate inside the hydraulic pipeline via a rotating housing. This causes the water jets from the spray nozzles to rotate in a spiral pattern within the hydraulic pipeline, increasing the cleaning area and improving the cleaning effect.

[0006] However, the aforementioned hydraulic pipeline flushing device still has some shortcomings in actual use: 1. By cooperating with the first mounting base, mounting components and nozzle, the cleaning area of ​​the liquid on the inner wall of the hydraulic pipeline is increased, and the cleaning effect on the inside of the hydraulic pipeline is improved. However, the water flow of the nozzle cannot carry away the removed impurities, and the subsequent removal of impurities may cause blockage due to too many impurities.

[0007] 2. Existing technologies utilize nozzle flushing to address blockages, but this method has significant limitations, particularly in its poor effectiveness against specific solid residues. The moisture-carrying gas generated during filter press drying contains a large amount of PT acid, and the solids precipitated from PT acid have strong adhesion, making it difficult for ordinary nozzle water flow to thoroughly flush them away. In practice, even with frequent flushing, moisture-carrying gas pipelines and equipment often still experience clogging, affecting production efficiency and product quality.

[0008] Therefore, based on the above-mentioned viewpoints, it is of great significance to improve and perfect the hydraulic pipeline flushing device, which can not only promptly remove the cleaned impurities, but also physically remove the impurities solidified on the pipe wall, thereby improving the cleaning effect. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides a self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press, comprising a support ring disposed within the pipeline, a through hole being formed on the support ring, and a gate being installed within the through hole.

[0010] A storage tube is provided on one side of the support ring, and a control ring is rotatably installed on the side of the storage tube away from the support ring. A cleaning component is provided on the control ring.

[0011] The cleaning component includes an L-shaped support rod mounted on the control ring, a sleeve mounted on the support rod, a rotating shaft that passes through the control ring rotatably mounted inside the sleeve, and a cleaning block mounted on the end of the rotating shaft away from the control ring. The cleaning block is an arc-shaped strip.

[0012] The sleeve is also equipped with a cleaning component to improve the cleaning effect. The cleaning component includes an extension block that is symmetrically hinged along the length of the cleaning block. The end of the extension block away from the cleaning block is mounted on the rotating shaft via a spring rod.

[0013] Preferably, the end of the pivot furthest from the support rod is configured as a telescopic structure.

[0014] An adjusting ring is fitted onto the rotating shaft, and an adjusting spring is installed at the bottom of the adjusting ring. The adjusting spring is connected to the sleeve.

[0015] Preferably, a rotating cylinder is fitted onto the sleeve, and multiple spoilers are installed at equal intervals along the axis of the rotating cylinder.

[0016] Preferably, a motor is installed inside the storage tube, and the output end of the motor is connected to the control ring.

[0017] Preferably, a collar is rotatably sleeved on the outer side of the support ring, and multiple placement grooves are equidistantly opened on the collar along its axis. A drive groove communicating with the placement groove is opened on the support ring, and a stop block is slidably arranged in the placement groove along the radial direction of the collar.

[0018] A drive ring is rotatably installed inside the drive groove, and a drive block is provided on the drive ring. The drive block has a ring-shaped spiral planar thread structure, and a stop block is provided at one end inside the mounting groove with a mating block that engages with the planar thread of the drive block.

[0019] Cleaning strips are evenly spaced on both the collar and the stop.

[0020] Preferably, the support ring has a through groove that communicates with the drive groove and the inside of the storage cylinder. A second motor is installed inside the storage cylinder, and a synchronous shaft is rotatably installed inside the through groove. The synchronous shaft is connected to the output end of the second motor via a belt drive.

[0021] A drive gear ring is provided on the drive ring, and a drive gear that meshes with the drive gear ring is sleeved on the synchronous shaft.

[0022] Preferably, a connecting ring is installed on the side of the support ring away from the storage cylinder, and a track is provided on the outside of the connecting ring via a telescopic rod.

[0023] Preferably, a mounting ring is rotatably mounted on the drive gear ring inside the drive groove. The mounting ring has multiple docking holes equidistantly opened, and each docking hole corresponds to a stop block. A docking block is provided on the side of the stop block near the docking hole, which is movably engaged with the stop block.

[0024] Preferably, the pipeline is also equipped with an adapter, which includes adapter rings at both ends of the pipeline. The bottom of the adapter ring near the control ring has an extension hopper communicating with its interior, and the bottom of the extension hopper is connected to a water inlet pipe. A water storage tank is installed at the bottom of the pipeline. The upper end of the water storage tank is connected to the inlet pipe, and the bottom of the water storage tank is connected to the pipeline through the outlet pipe.

[0025] A screen is installed inside the water storage tank.

[0026] Preferably, the adapter ring has a double-layer structure, with baffles symmetrically slidingly arranged inside the interlayer of the adapter ring, and a winding shaft rotatably installed on the top of the interlayer. A pull rope is wound on the winding shaft, and the two ends of the pull rope are respectively connected to the baffles. A second gate is provided inside the adapter ring.

[0027] In summary, this application includes at least one of the following beneficial technical effects: I. This invention utilizes the meshing of the first and second bevel gears to enable the rotating shaft to rotate on its own axis while revolving around the central axis. This causes the cleaning block to rotate both around the pipe axis and on its own, significantly increasing the contact area and friction with the pipe wall. This allows for more efficient grinding and removal of stubborn solid impurities with strong adhesion, such as PT acid, solving the problem of stubborn residues that are difficult to remove with traditional spray nozzle rinsing.

[0028] Second, the present invention allows the support ring to move along the pipeline and clean in sections. With the rotation and position adjustment of the collar and the stop, different areas of the pipeline can be covered. When the placement groove is opened, the water pressure is increased, and the baffle plate makes the water flow more turbulent and carries away impurities more fully, effectively avoiding dead corners in the flushing and reducing the risk of impurity residue and secondary blockage. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the internal structure of the pipe and water storage tank of the present invention.

[0032] Figure 3 This is a schematic diagram of the cleaning component of the present invention.

[0033] Figure 4 This is a structural schematic diagram of the cleaning component of the present invention from another perspective.

[0034] Figure 5 This is the present invention. Figure 4 A schematic diagram of the structure at point A in the middle.

[0035] Figure 6 This is the present invention. Figure 4 A schematic diagram of the structure at point B.

[0036] Figure 7 This is a schematic diagram of the structure for controlling the movement of the stop block according to the present invention.

[0037] Figure 8 This is the present invention. Figure 7 A schematic diagram of the structure at point C.

[0038] Figure 9 This is a schematic diagram of the adapter of the present invention.

[0039] In the diagram, 1. Support ring; 10. Gate 1; 11. Storage cylinder; 12. Control ring; 13. Placement slot; 2. Cleaning component; 20. Support rod; 21. Sleeve; 22. Rotating shaft; 23. Cleaning block; 24. Cleaning part; 240. Extension block; 241. Spring rod; 25. Adjusting ring; 26. Adjusting spring; 30. Rotating cylinder; 31. Spoiler; 32. Motor 1; 40. Collar; 41. Stop block; 42. Drive ring; 43. Drive block; 44. Mating block; 5. Cleaning 60. Through slot; 61. Motor II; 62. Synchronous shaft; 63. Drive gear ring; 64. Drive gear; 70. Connecting ring; 71. Track; 8. Mounting ring; 80. Docking hole; 81. Docking block; 9. Adapter; 90. Adapter ring; 91. Extension bucket; 92. Inlet pipe; 93. Water storage tank; 94. Outlet pipe; 95. Screen; 96. Baffle; 97. Winding shaft; 98. Pull rope; 99. Gate II; 27. First bevel gear; 28. Second bevel gear. Detailed Implementation

[0040] The following combination Figures 1-9 The embodiments of the present invention will be described in detail below.

[0041] This application discloses a self-circulating anti-clogging flushing device for the dehumidification pipeline of a PTA filter press. This invention is mainly used in the process of pipeline cleaning. In terms of technical effect, it can avoid the problem of excessive impurities causing blockage due to the need to uniformly remove impurities from the pipeline. Furthermore, this invention can also solve the problem that the flushing effect of the nozzle is not good when only some solid residues are flushed by the nozzle.

[0042] Example 1: Reference Figure 1 , Figure 2 and Figure 4 As shown, a self-circulating anti-clogging flushing device for the dehumidification pipeline of a PTA filter press includes a support ring 1 installed inside the pipeline. The support ring 1 has a through hole, and a gate valve 10 is installed inside the through hole. The gate valve 10 is preferably an existing electric iris valve, which controls the opening, closing, or flow regulation of the pipeline via electrical control. When cleaning of the pipeline interior is required, the gate valve 10 is opened, and water flows through the through hole, carrying away impurities from inside the pipeline.

[0043] Reference Figure 4 and Figure 7The diagram shows a schematic of the structure for cleaning impurities. Specifically, a receiving cylinder 11 is provided on one side of the support ring 1, and a control ring 12 is rotatably mounted on the side of the receiving cylinder 11 away from the support ring 1. A cleaning component 2 is provided on the control ring 12. By driving the control ring 12 to rotate, the cleaning component 2 on the control ring 12 rotates around the axis of the receiving cylinder 11. During the rotation, the cleaning component 2 polishes and removes solid impurities adhering to the pipe wall in the dehumidification pipe. The removed impurities are carried out with the flowing water.

[0044] It should be noted that the support ring 1 will move along the pipeline. Every time the support ring 1 moves a certain distance, the gate 10 will open once, and the water will carry away the impurities cleaned by the cleaning component 2.

[0045] Reference Figure 4 , Figure 5 and Figure 6 The diagram shows a schematic of the structure for cleaning the inner wall of the pipe. Specifically, the cleaning component 2 includes an L-shaped support rod 20 mounted on the control ring 12. A sleeve 21 is installed on the support rod 20, and a rotating shaft 22, which passes through the control ring 12, is rotatably mounted inside the sleeve 21. A cleaning block 23, which is an arc-shaped elongated strip, is installed at the end of the rotating shaft 22 away from the control ring 12. The support rod 20 rotates along the axis of the control ring 12, causing the rotating shaft 22 inside the sleeve 21 to rotate. During this process, the cleaning block 23 on the rotating shaft 22 contacts the inner wall of the dehumidification pipe, breaking down and removing impurities deposited on the pipe wall.

[0046] The cleaning block 23 is designed to be arc-shaped, which can adapt to the shape of the pipe wall during rotation.

[0047] The sleeve 21 is also provided with a cleaning component 24 to improve the cleaning effect. The cleaning component 24 includes an extension block 240 that is symmetrically hinged along the length of the cleaning block 23. The end of the extension block 240 away from the cleaning block 23 is mounted on the rotating shaft 22 via a spring rod 241.

[0048] By setting the extension block 240, and when encountering uneven thickness of deposited solids inside the pipe wall, the extension block 240, provided by the spring rod 241, can be adaptively adjusted according to the specific situation. If stubborn impurities are encountered, the spring rod 241 can make adaptive adjustments to prevent the spring rod 241 from encountering obstruction during rotation, which could lead to damage.

[0049] Reference Figure 4 and Figure 5 As shown, this is a schematic diagram of the structure of the adjustment cleaning block 23; specifically, the end of the rotating shaft 22 away from the support rod 20 is set as a telescopic structure, and an adjusting ring 25 is sleeved on the rotating shaft 22. An adjusting spring 26 is set at the bottom of the adjusting ring 25, and the adjusting spring 26 is connected to the sleeve 21.

[0050] The rotating shaft 22 is designed as a telescopic structure, which can make adaptive adjustments according to the actual situation when encountering stubborn impurities, thus preventing damage to the cleaning block 23.

[0051] Reference Figure 3 and Figure 4 The diagram shows a structure designed to improve impurity removal. Specifically, a rotating cylinder 30 is mounted on the sleeve 21, and multiple baffles 31 are equidistantly installed on the rotating cylinder 30 along its axis. When the gate 10 is opened and water flows in, the water flow will cause the baffles 31 to rotate when it comes into contact with them.

[0052] Disturbance causes irregular movement of water flow, making the kinetic energy distribution of the water flow more even. It can carry more impurities with the water flow towards the drainage direction, avoiding the accumulation of impurities in local areas and ensuring that impurities can be continuously and efficiently carried out of the pipe.

[0053] Reference Figure 4 and Figure 6 The diagram shown is a structural schematic of the control ring 12 that drives the rotation. Specifically, a motor 32 is installed inside the storage cylinder 11, and the output end of the motor 32 is connected to the control ring 12.

[0054] The motor 32 drives the control ring 12 to rotate, which in turn causes the sleeve 21 and the rotating shaft 22 on the control ring 12 to rotate along the axis of the storage cylinder 11.

[0055] Reference Figure 4 , Figure 7 and Figure 8 The diagram shows a structural schematic for further cleaning of the pipe sidewall. Specifically, a collar 40 is rotatably sleeved on the outside of the support ring 1. Multiple placement grooves 13 are equidistantly opened on the collar 40 along its axis. A drive groove communicating with the placement grooves 13 is opened on the support ring 1. A stop block 41 is slidably arranged in the placement groove 13 along the radial direction of the collar 40.

[0056] When the support ring 1 moves inside the pipe, the side wall of the collar 40 and the side wall of the stop 41 will come into contact with the side wall inside the pipe. During the movement, some of the impurities remaining on the side wall of the pipe can be removed by friction.

[0057] When the sidewalls of the collar 40 and the stop 41 move a certain distance, some impurities will adhere to the collar 40 and the stop 41. At this time, the stop 41 is driven to slide in the placement groove 13, causing the placement groove 13 to open. At this time, the water flow on the side of the support ring 1 away from the sleeve 21 in the pipe will flow out from the placement groove 13. Since the gap of the placement groove 13 is small, when the water flows out from the placement groove 13 from the wide area, the water pressure increases, which improves the cleaning effect on the impurities in the pipe.

[0058] A drive ring 42 is rotatably installed in the drive groove. A drive block 43 is provided on the drive ring 42. The drive block 43 has a planar thread structure in the shape of a ring spiral. A stop block 41 is provided at one end inside the mounting groove 13 with a mating block 44 that meshes with the planar thread of the drive block 43.

[0059] By controlling the rotation of the drive ring 42, the drive block 43 on the drive ring 42 will engage with the mating block 44 by threads, causing it to slide along the radial direction of the drive block 43.

[0060] Cleaning strips 5 are evenly spaced on both the collar 40 and the stop block 41. The cleaning strips 5 can increase the friction with the side wall of the pipe and improve the cleaning effect on the pipe.

[0061] Reference Figure 6 , Figure 7 and Figure 8 The diagram shows the structure of the control block 41. Specifically, the support ring 1 has a through groove 60 that communicates with the drive groove and the inside of the storage cylinder 11. The storage cylinder 11 is equipped with a second motor 61. A synchronous shaft 62 is rotatably installed in the through groove 60. The output end of the synchronous shaft 62 and the second motor 61 are connected by a belt drive.

[0062] A drive gear ring 63 is provided on the drive ring 42, and a drive gear 64 that meshes with the drive gear ring 63 is sleeved on the synchronous shaft 62.

[0063] The synchronous shaft 62 is controlled to rotate by the transmission connection between the motor 61 and the belt. The rotation of the drive gear 64 on the synchronous shaft 62 will drive the drive gear ring 63 that meshes with it to rotate.

[0064] Reference Figure 3 The diagram shows a schematic of the structure controlling the movement of the support ring 1 within the pipe. Specifically, a connecting ring 70 is installed on the side of the support ring 1 away from the receiving cylinder 11, and a track 71 is installed on the outer side of the connecting ring 70 via a telescopic rod. By setting multiple tracks 71, the support ring 1 is driven to move inside the pipe, thereby controlling the cleaning component 2 on the support ring 1 to clean and remove impurities from the inner wall of the pipe.

[0065] Reference Figure 7 and Figure 8 The diagram shows the structure of the control ring 40. Specifically, an installation ring 8 is rotatably mounted on the drive gear ring 63 inside the drive groove. Multiple docking holes 80 are equidistantly opened on the installation ring 8. The docking holes 80 correspond one-to-one with the stop blocks 41. A docking block 81 is provided on the side of the stop block 41 near the docking hole 80, which is movably engaged with it.

[0066] When the stop block 41 slides along the mounting groove 13 under the action of the drive ring 42, the mating block 81 on the stop block 41 will gradually approach the mating hole 80 until the mating block 81 is engaged with the mating hole 80. The continuous rotation of the drive ring 42 will cause the mating block 81 to rotate, thereby enabling the mounting ring 8 to rotate synchronously with the drive ring 42.

[0067] The purpose of this design is that as the drive ring 42 rotates, it can also rotate the collar 40. During this rotation, the position of the mounting groove 13 on the collar 40 continuously changes. Therefore, the cleaning of impurities on the inner wall of the pipe can be continuously adjusted in position, which improves the cleaning effect compared to a fixed position for the mounting groove 13.

[0068] It should be noted that the mounting ring 8 is in contact with the side wall of the drive groove. The friction between the mounting ring 8 and the drive groove prevents the mounting ring 8 from rotating synchronously with the drive gear ring 63 when the drive gear ring 63 rotates, which would cause the mating hole 80 on the mounting ring 8 and the mating block 81 on the stop block 41 to be misaligned and affect the working effect.

[0069] Furthermore, when the drive ring 42 rotates in the reverse direction to drive the stop block 41 back to the initial position, the friction between the mounting ring 8 and the drive groove prevents the mounting ring 8 from rotating synchronously when the drive ring 42 rotates in the reverse direction, causing the collar 40 to rotate synchronously with the stop block 41, thereby affecting the stop block 41 from returning to the initial position.

[0070] Reference Figure 2 and Figure 9 The diagram shows a structural schematic to ensure the normal operation of the pipeline. Specifically, the pipeline is equipped with a connector 9, which can be used to seal or open both ends of the pipeline. When the pipeline is in operation, both ends can be opened without affecting normal operation. When cleaning is required, the connector 9 can be used to seal both ends of the pipeline to facilitate cleaning. The connector 9 includes a connector ring 90 at both ends of the pipeline, which connects the pipeline to the evaporation port of the pressure machine. The bottom of the connector ring 90, near the control ring 12, has an extension hopper 91 that communicates with its interior. The bottom of the extension hopper 91 is connected to a water inlet pipe 92. During the cleaning process, water containing impurities will enter the water inlet pipe 92 through the extension hopper 91.

[0071] A water storage tank 93 is installed at the bottom of the pipeline. The upper end of the water storage tank 93 is connected to the inlet pipe 92, and the bottom of the water storage tank 93 is connected to the pipeline through the outlet pipe 94. A water pump (not shown in the figure) is installed inside the water storage tank 93. The outlet end of the water pump is connected to the outlet pipe 94, and the inlet end is connected to the bottom of the water storage tank 93. The water pump sends the water in the water storage tank 93 into the pipeline for flushing.

[0072] A screen 95 is installed inside the water storage tank 93. Wastewater from cleaning the pipes enters the water storage tank 93 through the inlet pipe 92, and after impurities are removed by the screen 95, it is reused by a water pump, reducing water waste.

[0073] Reference Figure 2 and Figure 9 The diagram shows the structure of the control switch for the extension bucket 91. Specifically, the transition ring 90 has a double-layer structure. A baffle 96 is symmetrically slidably arranged in the interlayer of the transition ring 90 through a spring. A winding shaft 97 is rotatably installed on the top of the interlayer. A pull rope 98 is wound on the winding shaft 97. The two ends of the pull rope 98 are respectively connected to the baffle 96. A second gate 99 is provided in the transition ring 90. The second gate 99 is preferably an existing electric iris valve to realize the opening, closing or flow regulation of the pipeline.

[0074] In the initial state, the two baffles 96 are in contact, blocking the extension bucket 91 without affecting the normal operation of the pipeline. When cleaning is required, the motor three (not shown in the figure) drives the winding shaft 97 to rotate, controlling the pull rope 98 to be wound around the winding shaft 97. At this time, the pull rope 98 can pull the two baffles 96 away from each other to open the extension bucket 91. At this time, the gate two 99 is closed, and the pipeline can be connected to the water storage tank 93 through the water inlet pipe 92 and the water outlet pipe 94, which facilitates the circulation cleaning work.

[0075] Example 2: Based on Example 1, in order to further improve the cleaning effect of stubborn impurities in the pipeline, a synchronization element is also proposed, which is beneficial to improving the cleaning effect of cleaning block 23.

[0076] Reference Figure 6 The diagram shows the structure for controlling the rotation of the cleaning block 23. Specifically, a first bevel gear 27, coaxial with the control ring 12, is rotatably mounted inside the storage cylinder 11 via a support frame. A second bevel gear 28, meshing with the first bevel gear 27, is provided at one end of the rotating shaft 22 inside the control ring 12.

[0077] When the rotating shaft 22 rotates around the axis of the sleeve 21, the second bevel gear 28 on the rotating shaft 22 will rotate synchronously around the axis of the sleeve 21. During this process, it will mesh with the first bevel gear 27, thereby driving the rotating shaft 22 to rotate in the opposite direction. The cleaning block 23 on the rotating shaft 22 can rotate synchronously with the rotating shaft 22.

[0078] Thus, while rotating around the axis of sleeve 21, the rotating shaft 22 can also rotate on its own, increasing the contact area between the cleaning block 23 and the pipe wall, and further improving the cleaning ability of the cleaning block 23.

[0079] The working process of the self-circulating anti-clogging flushing device for the dehumidification gas pipeline of the PTA filter press is as follows: Step 1, Cleaning Preparation Stage: When cleaning is required, operate the adapter 9 at both ends of the pipeline. Motor 3 drives the winding shaft 97 to tighten the pull rope 98, pull the two baffles 96 to open the extension bucket 91, and at the same time close the gate 2 99 to form a closed circulation path between the pipeline and the water storage tank 93. The water pump is ready to operate.

[0080] The second step is the movement and positioning of the support ring 1: the support ring 1 moves along the pipeline via the track 71, and stops after moving a certain distance to prepare for cleaning the area.

[0081] The third step involves the activation of cleaning component 2 and the polishing of impurities: Motor 32 drives the control ring 12 to rotate, causing the support rod 20, sleeve 21, and rotating shaft 22 to revolve. Simultaneously, the second bevel gear 28 of the rotating shaft 22 meshes with the first bevel gear 27 to achieve its own rotation. The arc-shaped cleaning block 23 polishes impurities from the pipe wall, while the extension block 240 and the telescopic rotating shaft 22 adapt to the impurity situation to avoid damage.

[0082] The fourth step is the removal of impurities and the circulation of water: After the support ring 1 stops, the gate 10 is opened, and the water in the water storage tank 93 enters the pipe. The water flow carries impurities and moves, impacting the baffle plate 31 to generate disturbance and enhance the impurity removal effect. The sewage enters the water storage tank 93 after passing through the extension bucket 91 and the inlet pipe 92, and is then filtered and recycled.

[0083] Step 5, auxiliary cleaning and dead corner treatment: Motor 2 61 drives the drive ring 42 to rotate, causing the stop block 41 to slide. After docking, the collar 40 rotates synchronously, the cleaning strip 5 rubs against the pipe wall, and the water pressure increases when the placement groove 13 is opened, reducing the cleaning dead corners.

[0084] Step 6, cyclic cleaning and reset: The support ring 1 moves to repeat the cleaning process. After completion, the motor 3 and water pump are turned off, the baffle 96 is reset to close the extension bucket 91, the gate 2 99 is opened, and the pipeline is restored to normal connection.

[0085] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects.

[0086] 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 self-circulating anti-clogging flushing device for the dehumidification pipeline of a PTA filter press, comprising a support ring (1) disposed within the pipeline, characterized in that: A through hole is provided on the support ring (1), and a gate (10) is installed in the through hole. A storage tube (11) is provided on one side of the support ring (1), and a control ring (12) is rotatably installed on the side of the storage tube (11) away from the support ring (1). A cleaning component (2) is provided on the control ring (12). The cleaning component (2) includes an L-shaped support rod (20) set on the control ring (12), a sleeve (21) is installed on the support rod (20), a rotating shaft (22) that passes through the control ring (12) is rotatably installed inside the sleeve (21), and a cleaning block (23) is installed at the end of the rotating shaft (22) away from the control ring (12). The cleaning block (23) is an arc-shaped strip. The sleeve (21) is also provided with a cleaning component (24) to improve the cleaning effect. The cleaning component (24) includes an extension block (240) that is symmetrically hinged along the length of the cleaning block (23). The end of the extension block (240) away from the cleaning block (23) is set on the rotating shaft (22) through a spring rod (241).

2. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 1, characterized in that: The end of the pivot (22) away from the support rod (20) is configured as a telescopic structure; An adjusting ring (25) is fitted on the rotating shaft (22), and an adjusting spring (26) is provided at the bottom of the adjusting ring (25). The adjusting spring (26) is connected to the sleeve (21).

3. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 1, characterized in that: A rotating cylinder (30) is fitted on the sleeve (21), and multiple spoilers (31) are installed on the rotating cylinder (30) at equal intervals along its axis.

4. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 1, characterized in that: The storage tube (11) is equipped with a motor (32), and the output end of the motor (32) is connected to the control ring (12).

5. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 1, characterized in that: A collar (40) is rotatably sleeved on the outside of the support ring (1). Multiple placement grooves (13) are equidistantly opened on the collar (40) along its axis. A drive groove communicating with the placement groove (13) is opened on the support ring (1). A stop block (41) is slidably arranged in the placement groove (13) along the radial direction of the collar (40). A drive ring (42) is rotatably installed in the drive groove. A drive block (43) is provided on the drive ring (42). The drive block (43) has a planar thread structure in the shape of a ring spiral. A stop block (41) is provided at one end inside the placement groove (13) with a mating block (44) that meshes with the planar thread of the drive block (43). Cleaning strips (5) are provided at equal intervals on both the collar (40) and the stop (41).

6. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 5, characterized in that: The support ring (1) has a through groove (60) that communicates with the drive groove and the inside of the storage cylinder (11). The storage cylinder (11) is equipped with a second motor (61). A synchronous shaft (62) is rotatably installed in the through groove (60). The output end of the synchronous shaft (62) and the second motor (61) are connected by belt drive. A drive gear ring (63) is provided on the drive ring (42), and a drive gear (64) that meshes with the drive gear ring (63) is sleeved on the synchronous shaft (62).

7. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 1, characterized in that: A connecting ring (70) is installed on the side of the support ring (1) away from the storage tube (11), and a track (71) is provided on the outside of the connecting ring (70) through a telescopic rod.

8. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 5, characterized in that: An installation ring (8) is rotatably mounted on the drive gear ring (63) inside the drive groove. Multiple docking holes (80) are equally spaced on the installation ring (8). The docking holes (80) correspond one-to-one with the stop blocks (41). A docking block (81) is provided on the side of the stop block (41) near the docking hole (80) and is movably engaged with it.

9. The self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 1, characterized in that: The pipeline is also equipped with a connector (9), which includes a connector ring (90) at both ends of the pipeline. The bottom of the connector ring (90) near the control ring (12) is provided with an extension bucket (91) that communicates with its interior. The bottom of the extension bucket (91) is connected to a water inlet pipe (92). A water storage tank (93) is provided at the bottom of the pipeline. The upper end of the water storage tank (93) is connected to the water inlet pipe (92), and the bottom of the water storage tank (93) is connected to the pipeline through a water outlet pipe (94). A screen (95) is installed inside the water storage tank (93).

10. A self-circulating anti-clogging flushing device for the dehumidification gas pipeline of a PTA filter press according to claim 9, characterized in that: The transition ring (90) has a double-layer structure. A baffle (96) is symmetrically slidably arranged in the interlayer of the transition ring (90). A winding shaft (97) is rotatably installed on the top of the interlayer. A pull rope (98) is wound on the winding shaft (97). The two ends of the pull rope (98) are respectively connected to the baffle (96). A second gate (99) is provided in the transition ring (90).

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