Efficient engineering plastic processing drying tank

Abstract

The application belongs to the technical field of engineering plastic processing, and particularly relates to a high-efficiency engineering plastic processing material drying tank, which comprises a cyclone drying mechanism, a secondary drying mechanism and a filtering mechanism. The cyclone drying mechanism comprises a separation drying cylinder, a feeding pipe arranged in the tangential direction of the separation drying cylinder and communicated with one side of the separation drying cylinder, a filter cylinder rotatably installed in the inner cavity of the separation drying cylinder through an impeller driving assembly, and helical blades fixed to the outer peripheral wall of the filter cylinder. The secondary drying mechanism comprises a drying hopper communicated with the bottom end of the separation drying cylinder and having a Y-shaped cross section. The filtering mechanism comprises a separation box communicated with the bottom end of the drying hopper, an arc-shaped circulating pipe connected to the outer side wall of the separation box, and a first tangential port and a second tangential port formed in the inner cavity of the separation box. The application solves the problems of uneven material dispersion, insufficient hot air contact and difficult complete dispersion of clumps in the traditional equipment through the synergistic effect of the components, greatly improves the uniformity and sufficiency of material drying, and ensures smooth subsequent processing procedures.

Description

Technical Field

[0001] This invention belongs to the field of engineering plastics processing technology, and in particular relates to a high-efficiency drying tank for engineering plastics processing. Background Technology

[0002] In the drying process of engineering plastics, the clumping problem during material drying is a key pain point affecting processing quality and efficiency. Existing drying equipment often suffers from unreasonable drying structure design, leading to poor material flow and uneven dispersion within the drying chamber, insufficient contact between hot air and material, and clumping in some areas due to localized high humidity or temperature fluctuations. Furthermore, the lack of targeted dispersion and anti-caking structures makes it difficult to effectively break up existing clumps during drying. Material tends to accumulate and agglomerate in transition areas, further exacerbating the clumping problem. This not only affects the uniformity and thoroughness of material drying but also hinders the smooth progress of subsequent processing steps.

[0003] There is an urgent need for improvement, so we propose a high-efficiency drying tank for engineering plastics processing. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a high-efficiency drying tank for engineering plastics processing. This completely solves the problems of uneven material dispersion, insufficient hot air contact, and difficulty in breaking up clumps in traditional equipment, significantly improving the uniformity and adequacy of drying and ensuring smooth subsequent processing.

[0005] In view of this, the present invention provides a high-efficiency drying tank for engineering plastics processing, comprising: A cyclone drying mechanism includes a separating drying cylinder and a feed pipe arranged along the tangential direction of the separating drying cylinder and connected to one side of the separating drying cylinder. A filter cylinder is rotatably installed in the inner cavity of the separating drying cylinder through an impeller drive assembly, and a spiral blade is fixed to the outer peripheral wall of the filter cylinder. The secondary drying mechanism includes a drying hopper with a Y-shaped cross-section connected to the bottom end of the separating drying cylinder; The filtration mechanism includes a separation chamber connected to the bottom of the drying hopper, with an arc-shaped circulation pipe connected to its outer wall. The inner cavity of the separation chamber has a first tangent and a second tangent, and the two ends of the circulation pipe are respectively sealed and connected to the two tangents. A filter disc is installed at an inclination in the inner cavity of the separation chamber, and the filter disc is inclined towards the direction of the second tangent. The hot air mechanism is located on one side of the separation box. Its air outlet is connected to the inner cavity of the separation box, and the air outlet direction is along the tangent direction of the separation box and corresponds to the second tangent opening.

[0006] Furthermore, it also includes an exhaust mechanism, which includes an exhaust pipe connected to one side of the top of the separation and drying cylinder, an exhaust fan, and a dust removal component connected to the exhaust pipe. The exhaust end of the exhaust fan is connected to the end of the exhaust pipe away from the separation and drying cylinder.

[0007] Furthermore, the bottom end of the separation box is connected to a discharge hopper, the bottom end of the discharge hopper is connected to a rectangular frame, the inner cavity of the rectangular frame is provided with an arc-shaped groove, and a rotating shaft is rotatably connected between the two ends of the inner cavity of the rectangular frame. The axis of the rotating shaft is collinear with the central axis of the arc-shaped groove. Multiple material feeding plates are fixedly connected to the outer periphery of the rotating shaft, and a drive motor is fixedly connected to one end of the outer side of the rectangular frame. The drive end of the drive motor is connected to one end of the rotating shaft.

[0008] Furthermore, the impeller drive assembly includes a connecting shaft rotatably connected to the middle of the top of the separation and drying cylinder. The bottom end of the connecting shaft is fixedly connected to the middle of the top of the filter cylinder. A connecting disc is fixedly connected to the outer peripheral wall of the connecting shaft. A plurality of actuating plates are fixedly connected to the outer peripheral wall of the connecting disc. The position where the feed pipe is connected to the separation and drying cylinder corresponds to the actuating plates.

[0009] Furthermore, the hot air mechanism includes a hot air blower and a blower. A connecting pipe connects the hot air outlet of the hot air blower to the air inlet of the blower. An air inlet pipe connects the air outlet of the blower to the separation box. The air outlet direction of the air inlet pipe is set along the tangential direction of the separation box.

[0010] Furthermore, one side of the air inlet pipe is connected to a branch pipe, and the other end of the branch pipe is connected to the inner cavity of the drying hopper. The air outlet direction of the branch pipe is set along the tangential direction of the drying hopper.

[0011] Furthermore, a drive shaft is fixedly connected to the bottom center of the filter cartridge, the drive shaft extends into the inner cavity of the separation box, a drive disk is fixedly connected to the bottom end of the drive shaft, and multiple arc-shaped baffles are fixedly connected to the outer peripheral wall of the drive disk. The arc-shaped baffles correspond to the first tangent, and the concave surface of the multiple arc-shaped baffles is the windward surface.

[0012] Furthermore, multiple first spikes are fixedly connected to the windward side of each of the multiple toggle plates, and multiple second spikes are fixedly connected to the windward side of each of the arc-shaped toggle plates.

[0013] Furthermore, a mounting shaft is fixedly connected to the bottom center of the drive disc, and a stirring plate with the same tilt angle and direction as the filter disc is fixedly connected to the end of the mounting shaft near the filter disc, and the end of the stirring plate away from the mounting shaft is movably fitted to the surface of the filter disc.

[0014] Furthermore, the dust removal assembly includes a dust removal cylinder that is detachably connected to the middle of the exhaust duct via a flange, and multiple layers of stainless steel sintered mesh are installed inside the dust removal cylinder.

[0015] The beneficial effects of this invention are: This application uses a feed pipe positioned tangentially to the separating drying cylinder, allowing the material to directly form a cyclone airflow upon entry and collide with the impeller drive assembly. This achieves initial material dispersion to prevent initial agglomeration and converts the material's kinetic energy into driving energy to synchronously rotate the filter cylinder and spiral blades. The rotating spiral blades transport the material in a spiral propulsion manner, and their spiral structure continuously shears, tumbles, and tears the material. This disperses any material that re-agglomerates during transport and prevents flow obstruction caused by localized accumulation, ensuring that each particle of material is independently exposed to the cyclone airflow. Simultaneously, the material's movement trajectory forms opposite or cross-contact with the cyclone airflow, significantly increasing the contact area and duration between the material and the hot air, eliminating dead zones in hot air contact, and achieving thorough drying during material transport. The drying hopper ensures a smooth transition of materials from the drying cylinder to the separation chamber, reducing the risk of agglomeration in the transition area. The inclined filter disc inside the separation chamber serves both guiding and filtering functions, intercepting incompletely dispersed agglomerated materials and guiding them to the second tangential opening. In conjunction with the hot air mechanism that delivers air along the tangential direction of the separation chamber, the hot air pushes the agglomerated materials through the arc-shaped circulation pipe, spraying them at high speed from the first tangential opening and impacting the inner wall of the separation chamber to achieve forced dispersion. Incompletely crushed agglomerated materials can also flow back through the filter disc with the closed-loop cyclone airflow and repeat the collision and dispersion process until the agglomerated materials are completely crushed. Thus, through the synergistic effect of various components, the problems of uneven material dispersion, insufficient hot air contact, and difficulty in completely dispersing agglomerated materials in traditional equipment are fundamentally solved, greatly improving the uniformity and adequacy of material drying and ensuring the smooth progress of subsequent processing steps. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency engineering plastics processing drying tank proposed in this invention; Figure 2 This is a schematic diagram of the overall internal structure of a high-efficiency engineering plastics processing drying tank proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of the separation and drying cylinder of a high-efficiency engineering plastics processing drying tank proposed in this invention; Figure 4 This is a schematic diagram of the filter cartridge and impeller drive assembly and the arc-shaped baffle structure of a high-efficiency engineering plastics processing drying tank proposed in this invention. Figure 5 This is a schematic diagram of the internal structure of the discharge hopper, rotating shaft, and material feeding plate of a high-efficiency engineering plastics processing drying tank proposed in this invention.

[0017] The markings in the diagram are as follows: 1. Separating drying cylinder; 2. Drying hopper; 3. Separating box; 4. Discharge hopper; 5. Filter disc; 6. Arc-shaped groove; 7. Feed pipe; 8. Exhaust pipe; 9. Dust collector; 10. Exhaust fan; 11. Hot air blower; 12. Connecting pipe; 13. Branch pipe; 14. Blower; 15. Air inlet pipe; 16. Rectangular frame; 17. Drive motor; 18. Arc-shaped circulation pipe; 19. Filter cartridge; 20. Spiral blade; 21. Connecting shaft; 22. Connecting disc; 23. Actuating plate; 24. Multi-layer stainless steel sintered mesh; 25. Drive shaft; 26. First tangent; 27. Second tangent; 28. Mounting shaft; 29. ​​Stirring plate; 30. Rotating shaft; 31. Feeding plate; 32. Drive disc; 33. Arc-shaped actuating plate; 34. Second spike; 35. First spike. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0020] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0023] Reference Figures 1 to 5 A high-efficiency drying tank for engineering plastics processing, comprising: The cyclone drying mechanism includes a separation drying cylinder 1 and a feed pipe 7 arranged along the tangential direction of the separation drying cylinder 1 and connected to one side of the separation drying cylinder 1. A filter cylinder 19 is rotatably installed in the inner cavity of the separation drying cylinder 1 through an impeller drive assembly, and a spiral blade 20 is fixedly connected to the outer peripheral wall of the filter cylinder 19. The secondary drying mechanism includes a drying hopper 2 with a Y-shaped cross-section connected to the bottom end of the separating drying cylinder 1; The filtration mechanism includes a separation box 3 connected to the bottom of the drying hopper 2, an arc-shaped circulation pipe 18 connected to its outer wall, a first tangent 26 and a second tangent 27 opened in the inner cavity of the separation box 3, and the two ends of the arc-shaped circulation pipe 18 are respectively sealed and connected to the two tangents. A filter disc 5 is installed at an inclination in the inner cavity of the separation box 3, and the filter disc 5 is inclined towards the direction of the second tangent 27. The hot air mechanism is located on one side of the separation box 3. Its air outlet is connected to the inner cavity of the separation box 3, and the air outlet direction is along the tangent direction of the separation box 3 and corresponds to the second tangent opening 27.

[0024] This application uses a feed pipe 7 arranged tangentially along the separation and drying cylinder 1. Upon entering, the engineering plastic directly forms a cyclone airflow and collides with the impeller drive assembly. This not only instantly breaks up the material initially, preventing initial agglomeration, but also converts the material's kinetic energy into driving energy, causing the filter cylinder 19 and its outer spiral blades 20 to rotate synchronously. The rotating spiral blades 20 transport the material in a spiral propulsion manner. Their spiral structure continuously shears, tumbles, and tears the material, thoroughly breaking up any material that might re-agglomerate during transport. Furthermore, by continuously changing the material's posture, it prevents localized accumulation that could hinder flow, ensuring each particle is independently exposed to the cyclone airflow. Simultaneously, during spiral transport, the material's downward trajectory along the blades forms a reverse or cross-contact with the cyclone airflow, significantly increasing the contact area and duration between the material and the hot air, avoiding dead zones in the hot air contact, and achieving thorough drying of the material during transport. The drying hopper 2 ensures a smooth transition of materials from the separating drying cylinder 1 to the separating chamber 3, reducing the risk of agglomeration in the transition area. The inclined filter disc 5 inside the separating chamber 3 serves both guiding and filtering functions, intercepting incompletely dispersed agglomerated materials and guiding them to the second tangential opening 27. In conjunction with the hot air mechanism that delivers air along the tangential direction of the separating chamber 3, the hot air pushes the agglomerated materials into the arc-shaped circulation pipe 18, and then sprays them out at high speed from the first tangential opening 26, impacting the inner wall of the separating chamber 3, thus forcibly dispersing the agglomerated materials. If there are still incompletely crushed agglomerated materials, they will flow through the filter disc 5 again with the closed-loop cyclone airflow and be guided to the second tangential opening 27, repeating the above collision and dispersal process until the agglomerated materials are completely crushed. Ultimately, all fully dispersed and dried materials maintain all-round, dead-angle-free contact with the hot air, fundamentally solving the problems of uneven material dispersion, insufficient hot air contact, and difficulty in completely dispersing agglomerated materials in traditional equipment, greatly improving the uniformity and sufficiency of drying, and ensuring smooth subsequent processing.

[0025] In the example of this application, a ventilation mechanism is also included, which includes a ventilation pipe 8 connected to one side of the top of the separation drying cylinder 1, a ventilation fan 10, and a dust removal component connected to the ventilation pipe 8. The exhaust end of the ventilation fan 10 is connected to the end of the ventilation pipe 8 away from the separation drying cylinder 1.

[0026] As a preferred example of this utility model, the top of the separation drying cylinder 1 is connected through the exhaust pipe 8. With the help of the exhaust fan 10, the moisture and a small amount of light dust generated during the drying process can be discharged in time, reducing the humidity in the drying chamber and inhibiting the formation of agglomerates from an environmental perspective. At the same time, a slight negative pressure environment is formed to assist the cyclone flow of materials in the separation drying cylinder 1, improving the material dispersion and drying efficiency. The dust removal component can filter the discharged gas to avoid dust pollution of the environment and prevent dust from flowing back into the drying chamber to secondary pollute the materials, ensuring the purity of the materials. This solves the problem that moisture cannot be discharged in time and dust accumulation affects the drying effect and material quality during the drying process of traditional equipment, and indirectly reduces the risk of material agglomeration caused by moisture retention.

[0027] In the example of this application, the bottom end of the separation box 3 is connected to the discharge hopper 4, the bottom end of the discharge hopper 4 is connected to the rectangular frame 16, the inner cavity of the rectangular frame 16 is provided with an arc groove 6, and the two ends of the inner cavity of the rectangular frame 16 are rotatably connected to the rotating shaft 30 through a sealed bearing. The axis of the rotating shaft 30 is collinear with the central axis of the arc groove 6. Multiple material feeding plates 31 are fixedly connected to the outer periphery of the rotating shaft 30, and a drive motor 17 is fixedly connected to one end of the outer side of the rectangular frame 16. The drive end of the drive motor 17 is connected to one end of the rotating shaft 30.

[0028] As a preferred example of this utility model, the arc-shaped groove 6 inside the rectangular frame 16 is collinear with the rotating shaft 30. When the drive motor 17 drives the rotating shaft 30 and the material-pulling plate 31 to rotate, the material-pulling plate 31 can closely fit the inner wall of the arc-shaped groove 6 to uniformly stir the material. On the one hand, it can effectively prevent the material from accumulating and agglomerating in the transition area of ​​the discharge port, and achieve uniform discharge. On the other hand, the close fit between the material-pulling plate 31 and the arc-shaped groove 6 can form a dynamic seal on the discharge end, preventing external cold air from seeping into the drying system through the discharge end when the exhaust mechanism is working, avoiding temperature and humidity fluctuations in the drying chamber, and consolidating the overall drying effect.

[0029] In the example of this application, the impeller drive assembly includes a connecting shaft 21 rotatably connected to the middle of the top of the separation drying cylinder 1 via a sealed bearing. The bottom end of the connecting shaft 21 is fixedly connected to the middle of the top of the filter cylinder 19. A connecting disc 22 is fixedly connected to the outer peripheral wall of the connecting shaft 21. A plurality of actuating plates 23 are fixedly connected to the outer peripheral wall of the connecting disc 22. The position where the feed pipe 7 is connected to the separation drying cylinder 1 corresponds to the actuating plate 23.

[0030] As a preferred example of this utility model, the actuating plate 23 on the outer periphery of the connecting plate 22 corresponds to the position of the feed pipe 7. After the material enters from the feed pipe 7 along the tangential direction, it will directly collide with the actuating plate 23. On the one hand, the material's own kinetic energy collidees with the actuating plate 23, driving the filter cartridge 19 and the spiral blades 20 to rotate. On the other hand, the collision action quickly disperses the material into fine particles, achieving initial dispersion of the material. This fundamentally prevents the material from instantly agglomerating and forming clumps as soon as it enters the drying cylinder. At the same time, the actuating plate 23 can also help guide the dispersed material to flow orderly along the direction of the spiral blades 20, optimizing the distribution of the material in the separation drying cylinder 1, avoiding local accumulation, maximizing the contact area between the material and the hot air, and greatly improving the initial drying efficiency. This effectively solves the core problem of material agglomeration and untimely dispersion during feeding in traditional equipment, which leads to local clumping.

[0031] In the example of this application, the hot air mechanism includes a hot air blower 11 and a blower 14. A connecting pipe 12 connects the hot air outlet of the hot air blower 11 and the air inlet of the blower 14. An air inlet pipe 15 connects the air outlet of the blower 14 and the separation box 3. The air outlet direction of the air inlet pipe 15 is set along the tangential direction of the separation box 3.

[0032] As a preferred example of this utility model, the hot air mechanism adopts a structure combining a hot air blower 11 and a blower 14, with the air inlet pipe 15 tangentially set to ensure that the hot air acts stably and efficiently on the material. The hot air provided by the hot air blower 11 is transported to the blower 14 through the connecting pipe 12. After being pressurized by the blower 14, it is input along the tangential direction of the separation box 3 through the air inlet pipe 15, which can form a stable spiral hot air field, so that the hot air stays in the separation box 3 for a longer time and has more sufficient and uniform contact with the material, avoiding the problem of insufficient local drying caused by unstable hot air delivery and irregular contact with the material in traditional equipment.

[0033] In the example of this application, one side of the air inlet pipe 15 is connected to a branch pipe 13, and the other end of the branch pipe 13 is connected to the inner cavity of the drying hopper 2. The air outlet direction of the branch pipe 13 is set along the tangential direction of the drying hopper 2.

[0034] As a preferred example of this utility model, hot air is introduced into the inner cavity of the drying hopper 2 through the branch pipe 13 and exits along the tangential direction of the drying hopper 2. This creates a local cyclone field within the drying hopper 2, which further agitates and dries the material that has been initially dried by the separation drying cylinder 1. This prevents the material from accumulating and agglomerating within the Y-shaped drying hopper 2. At the same time, the hot air in the drying hopper 2 and the spiral hot air in the separation box 3 work synergistically to extend the residence time of the material in the hot air environment, ensuring that the material is dried more thoroughly and evenly. This blocks the path of agglomeration from the middle stage and solves the problem of insufficient hot air agitation and easy agglomeration of materials in the secondary drying area of ​​traditional equipment.

[0035] In the example of this application, a drive shaft 25 is fixedly connected to the middle of the bottom end of the filter cartridge 19. The drive shaft 25 extends into the inner cavity of the separation box 3. A drive disk 32 is fixedly connected to the bottom end of the drive shaft 25. A plurality of arc-shaped baffles 33 are fixedly connected to the outer peripheral wall of the drive disk 32. The arc-shaped baffles 33 correspond to the first tangent opening 26, and the concave surface of the plurality of arc-shaped baffles 33 is the windward surface.

[0036] As a preferred example of this utility model, when the dust collector 9 rotates, it drives the drive disc 32 and the arc-shaped baffle 33 to rotate synchronously via the drive shaft 25. The arc-shaped baffle 33 corresponds to the first tangent 26, and its concave surface is set as the windward surface. It can not only fully receive the material and hot air transported at high speed from the circulation pipe to the separation box 3, but also, with the guiding effect of the arc structure, disperse and scatter the material again through its own rotation, guiding the material to fully mix with the hot air in all directions, greatly improving the dispersion uniformity and drying efficiency. At the same time, after the high-speed ejected material hits the concave surface of the arc-shaped baffle 33, it will generate a reverse force to assist... The force of the arc-shaped lever 33 is transmitted in the opposite direction to the filter cartridge 19 via the drive disc 32 and the transmission shaft 25, providing additional assistance for the rotation of the filter cartridge 19. This effectively ensures that the filter cartridge 19 always maintains a stable speed and avoids the problem of uneven speed of the filter cartridge 19 due to fluctuations in the feed rate. Furthermore, the bidirectional linkage structure does not require additional drive components. While reducing the energy consumption and structural complexity of the equipment, it can also prevent the material from accumulating near the first tangent 26, ensuring a smooth circulating drying path, effectively breaking up any slight agglomerates that have formed, and further enhancing the overall anti-caking performance and the stability of the equipment operation.

[0037] In the example of this application, multiple first spikes 35 are fixedly connected to the windward side of multiple toggle plates 23, and multiple second spikes 34 are fixedly connected to the windward side of each arc-shaped toggle plate 33.

[0038] As a preferred example of this utility model, the first spike 35 can pierce and break up any small clumps that may exist in the initial stage of material entry, decomposing the material into finer particles and improving the initial dispersion effect. The second spike 34 can pierce and break up the circulating drying material and residual clumps during the rotation of the arc-shaped baffle 33, completely breaking up the formed clumps. This solves the problem of traditional equipment lacking a targeted crushing structure and having difficulty in effectively breaking up clumps, allowing the material to come into more full contact with the hot air, and further improving the drying uniformity and anti-clumping effect.

[0039] In the example of this application, a mounting shaft 28 is fixedly connected to the bottom center of the drive disk 32. A stirring plate 29 with the same tilt angle and direction as the filter disk 5 is fixedly connected to the end of the mounting shaft 28 near the filter disk 5. The end of the stirring plate 29 away from the mounting shaft 28 is movably attached to the surface of the filter disk 5.

[0040] As a preferred example of this utility model, the stirring plate 29 is tilted at the same angle and direction as the filter disc 5, and is movably fitted against the surface of the filter disc 5. When the drive disc 32 rotates, it drives the stirring plate 29 to rotate synchronously, which can continuously scrape the material on the surface of the filter disc 5, preventing the material from accumulating and agglomerating on the filter disc 5. At the same time, it evenly pushes the material on the filter disc 5 to the direction of the second tangent 27, ensuring smooth circulation drying and discharge. The movable fitting design between the stirring plate 29 and the filter disc 5 can effectively clean the material on the surface of the filter disc 5 without causing wear to the filter disc 5, ensuring the stability and service life of the filtration mechanism. At the same time, it further enhances the dispersion effect of the material, ensuring that the material particle size is uniform after drying and there is no agglomeration residue.

[0041] In the example of this application, the dust removal assembly includes a dust removal cylinder 9 detachably connected to the middle of the exhaust duct 8 via a flange, and a multi-layer stainless steel sintered mesh 24 is installed inside the dust removal cylinder 9.

[0042] As a preferred example of this utility model, the multi-layer stainless steel sintered mesh 24 can efficiently intercept dust generated during the drying process, ensuring the cleanliness of the exhaust gas, avoiding dust pollution of the environment and backflow affecting material quality. The detachable flange design facilitates the periodic disassembly of the dust collector 9 for cleaning, maintenance, or replacement of the stainless steel sintered mesh, preventing filter clogging from affecting the ventilation effect and drying efficiency, ensuring the stable operation of the ventilation mechanism and the overall equipment. Furthermore, the stainless steel material has corrosion resistance and high temperature resistance, which can adapt to the high-temperature environment during the drying process and extend the service life of the dust collection components.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-efficiency drying tank for engineering plastics processing, characterized in that, include: The cyclone drying mechanism includes a separation drying cylinder (1) and a feed pipe (7) arranged along the tangential direction of the separation drying cylinder (1) and connected to one side of the separation drying cylinder (1). The inner cavity of the separation drying cylinder (1) is rotatably mounted with a filter cylinder (19) through an impeller drive assembly, and a spiral blade (20) is fixed to the outer peripheral wall of the filter cylinder (19). The secondary drying mechanism includes a drying hopper (2) with a Y-shaped cross-section connected to the bottom end of the separating drying cylinder (1). The filtration mechanism includes a separation box (3) connected to the bottom of the drying hopper (2), with an arc-shaped circulation pipe (18) connected to its outer wall. The inner cavity of the separation box (3) has a first tangent (26) and a second tangent (27), and the two ends of the arc-shaped circulation pipe (18) are respectively sealed and connected to the two tangents. The inner cavity of the separation box (3) is inclined to install a filter disc (5), and the filter disc (5) is inclined towards the second tangent (27). The hot air mechanism is located on one side of the separation box (3), and its air outlet is connected to the inner cavity of the separation box (3). The air outlet direction is along the tangent direction of the separation box (3) and corresponds to the second tangent opening (27).

2. The high-efficiency drying tank for engineering plastics processing according to claim 1, characterized in that, It also includes an exhaust mechanism, which includes an exhaust pipe (8) connected to one side of the top of the separation drying cylinder (1), an exhaust fan (10), and a dust removal component connected to the exhaust pipe (8). The exhaust end of the exhaust fan (10) is connected to the end of the exhaust pipe (8) away from the separation drying cylinder (1).

3. The high-efficiency drying tank for engineering plastics processing according to claim 2, characterized in that, The bottom end of the separation box (3) is connected to the discharge hopper (4), and the bottom end of the discharge hopper (4) is connected to the rectangular frame (16). The inner cavity of the rectangular frame (16) is provided with an arc groove (6), and the two ends of the inner cavity of the rectangular frame (16) are rotatably connected to a rotating shaft (30) through a sealed bearing. The axis of the rotating shaft (30) is collinear with the central axis of the arc groove (6). Multiple material feeding plates (31) are fixedly connected to the outer periphery of the rotating shaft (30). A drive motor (17) is fixedly connected to one end of the outer side of the rectangular frame (16), and the drive end of the drive motor (17) is connected to one end of the rotating shaft (30).

4. The high-efficiency drying tank for engineering plastics processing according to claim 3, characterized in that, The impeller drive assembly includes a connecting shaft (21) rotatably connected to the middle of the top of the separation drying cylinder (1). The bottom end of the connecting shaft (21) is fixedly connected to the middle of the top of the filter cylinder (19). A connecting disc (22) is fixedly connected to the outer peripheral wall of the connecting shaft (21). A plurality of actuating plates (23) are fixedly connected to the outer peripheral wall of the connecting disc (22). The position of the feed pipe (7) connected to the separation drying cylinder (1) corresponds to the actuating plate (23).

5. A high-efficiency drying tank for engineering plastics processing according to claim 4, characterized in that, The hot air mechanism includes a hot air blower (11) and a blower (14). A connecting pipe (12) connects the hot air outlet of the hot air blower (11) and the air inlet of the blower (14). An air inlet pipe (15) connects the air outlet of the blower (14) and the separation box (3). The air outlet direction of the air inlet pipe (15) is set along the tangential direction of the separation box (3).

6. The high-efficiency drying tank for engineering plastics processing according to claim 5, characterized in that, One side of the air inlet pipe (15) is connected to a branch pipe (13), and the other end of the branch pipe (13) is connected to the inner cavity of the drying hopper (2). The air outlet direction of the branch pipe (13) is set along the tangential direction of the drying hopper (2).

7. A high-efficiency drying tank for engineering plastics processing according to claim 6, characterized in that, A drive shaft (25) is fixedly connected to the middle of the bottom end of the filter cartridge (19). The drive shaft (25) extends into the inner cavity of the separation box (3). A drive disk (32) is fixedly connected to the bottom end of the drive shaft (25). Multiple arc-shaped baffles (33) are fixedly connected to the outer peripheral wall of the drive disk (32). The arc-shaped baffles (33) correspond to the first tangent (26), and the concave surface of the multiple arc-shaped baffles (33) is the windward surface.

8. A high-efficiency drying tank for engineering plastics processing according to claim 7, characterized in that, Multiple first spikes (35) are fixedly connected to the windward side of each of the multiple toggle plates (23), and multiple second spikes (34) are fixedly connected to the windward side of each of the arc-shaped toggle plates (33).

9. A high-efficiency drying tank for engineering plastics processing according to claim 8, characterized in that, The drive disc (32) is fixedly connected to the middle of the bottom end of the drive disc (32). The end of the drive disc (28) near the filter disc (5) is fixedly connected to a stirring plate (29) with the same tilt angle and direction as the filter disc (5). The end of the stirring plate (29) away from the drive disc (28) is movably attached to the surface of the filter disc (5).

10. A high-efficiency drying tank for engineering plastics processing according to claim 9, characterized in that, The dust removal assembly includes a dust removal cylinder (9) that is detachably connected to the middle of the exhaust pipe (8) via a flange, and a multi-layer stainless steel sintered mesh (24) is installed inside the dust removal cylinder (9).

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