A plastic particle drying device
By setting guide sections and guide blades in the plastic granule drying device, and combining them with a drive device to rotate the drying chamber, the problems of uneven heat distribution and sticking caused by plastic granule accumulation are solved, achieving uniform drying and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JIAJUNDA PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-16
AI Technical Summary
In existing plastic granule drying equipment, granule accumulation leads to poor heat transfer, severe uneven drying, and easy sticking, affecting product quality and production efficiency.
A plastic granule drying device is designed, which includes a rotating cylindrical drying chamber with guide sections and guide vanes on the inner wall to optimize the distribution of hot airflow. The drying chamber is driven to rotate by a drive device to achieve granule tumbling and uniform drying.
It improves the uniformity of heat transfer, reduces particle adhesion, ensures uniform drying of plastic particles, and improves production efficiency and product quality.
Smart Images

Figure CN224365225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic drying technology, and in particular to a plastic granule drying device. Background Technology
[0002] Plastic granules, as an important industrial raw material, are widely used in various industries such as automotive, electronics, home appliances, communications, construction, medical, packaging, and toys. In their processing, the drying stage is one of the key steps to ensure product quality. However, existing plastic granule drying equipment has many problems in practical use.
[0003] Existing drying equipment often clumps plastic granules together during drying. This clumping method hinders heat transfer between granules, further exacerbating uneven drying. Furthermore, the granules are prone to sticking together when piled up, especially under high temperature and high humidity conditions. This not only affects the appearance quality of the plastic granules but can also lead to clogging or poor molding during subsequent processing, increasing the defect rate in the production process. Summary of the Invention
[0004] In order to solve the above-mentioned technical problems, this utility model provides a plastic granule drying device.
[0005] The technical solution of this utility model is implemented as follows:
[0006] A plastic granule drying device includes a machine body with a drying chamber rotatably mounted on the machine body. A hot air mechanism and a discharge mechanism are respectively provided at both ends of the machine body. The drying chamber is a cylindrical component with both ends rotatably connected to the hot air mechanism and the discharge mechanism. The inner wall of the drying chamber is provided with a plurality of guide parts for turning over the plastic granules. During the rotation of the drying chamber, the guide parts drive the plastic granules to move and break up the accumulated plastic granules.
[0007] Furthermore, the drying chamber is also equipped with a flow guiding mechanism fixed at one end to the discharge mechanism. The flow guiding mechanism includes a fixed rod fixed to the discharge mechanism and several flow guiding blades disposed on the outer wall of the fixed rod. The flow guiding blades are used to guide the hot air flow generated by the hot air mechanism to the inner wall of the drying chamber.
[0008] Furthermore, the guide section is a plurality of protrusions provided on the inner wall of the drying chamber. The guide section is a strip-shaped object with a central protrusion, and a trough for accommodating plastic particles is formed between adjacent guide sections.
[0009] Furthermore, the hot air mechanism includes a first housing and a heating element disposed within the first housing, and also includes an exhaust fan disposed on one side of the heating element, with one end of the first housing connected to the drying chamber.
[0010] Furthermore, the discharge mechanism includes a second housing and a discharge port located on one side of the bottom of the second housing. A ventilation fan is installed on the second housing, and the other end of the drying chamber is connected to the second housing.
[0011] Furthermore, the machine body is also provided with a drive device for driving the drying chamber to rotate, the drive device including a transmission gear and a drive motor for driving the transmission gear to rotate.
[0012] Furthermore, the outer wall of the drying chamber is provided with a linkage part for meshing with the transmission gear. When the drive motor drives the transmission gear to rotate, the transmission gear drives the linkage part to rotate, that is, drives the drying chamber to rotate.
[0013] Furthermore, a pulley system is provided on the machine body near the drying chamber, and a slide rail that contacts the pulley system is fixed around the outer wall of the drying chamber.
[0014] Furthermore, the pulley assembly consists of several concave pulleys mounted on the machine body, with their external recesses matching the slide rail.
[0015] Furthermore, the inner wall surface of the drying chamber is inclined, with the side closest to the hot air mechanism being the highest point of the inclination and the side closest to the guide section being the lowest point of the inclination.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] 1. In this utility model, several guide sections are provided on the inner wall of the drying chamber. During the rotation of the drying chamber, these guide sections can drive the plastic particles to move and disperse the accumulated plastic particles. Through the turning and dispersing effect of the guide sections, the plastic particles are prevented from piling up together during the drying process. This ensures that heat can be evenly transferred to each particle, thereby improving the uniformity of drying and reducing the adhesion between particles.
[0018] 2. By setting a guide mechanism with several guide vanes inside the drying chamber, these guide vanes can guide the hot air flow generated by the hot air mechanism to the inner wall of the drying chamber. Through the guidance of the guide vanes, the hot air flow can be more evenly distributed near the inner wall of the drying chamber, further improving the efficiency of heat transfer and ensuring that the plastic granules can fully contact the hot air flow during the drying process, thereby improving the drying effect. Attached Figure Description
[0019] Figure 1This is one of the structural schematic diagrams of a plastic granule drying device according to the present invention;
[0020] Figure 2 This is the second schematic diagram of the structure of a plastic granule drying device according to the present invention;
[0021] Figure 3 This is a side view of a plastic granule drying device according to the present invention;
[0022] Figure 4 for Figure 3 Cross-sectional view along the AA direction;
[0023] Figure 5 This is another cross-sectional view of the plastic granule drying device of this utility model.
[0024] 1. Machine body; 2. Drying chamber;
[0025] 3. Hot air mechanism; 31. First housing; 32. Heating unit; 33. Exhaust fan;
[0026] 4. Discharge mechanism; 41. Second housing; 42. Discharge port;
[0027] 5. Flow guide; 6. Flow guide mechanism; 7. Fixed rod; 8. Flow guide blade; 9. Transmission gear; 10. Drive motor; 11. Linkage part; 12. Pulley block; 13. Slide rail. Detailed Implementation
[0028] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0029] like Figure 1-5 As shown, a plastic granule drying device includes a body 1, on which a drying chamber 2 is rotatably mounted. A hot air mechanism 3 and a discharge mechanism 4 are respectively provided at both ends of the body 1. The drying chamber 2 is a cylindrical component whose two ends are rotatably connected to the hot air mechanism 3 and the discharge mechanism 4. The inner wall of the drying chamber 2 is provided with a plurality of guide parts 5 for turning over the plastic granules. During the rotation of the drying chamber 2, the guide parts 5 drive the plastic granules to move and break up the accumulated plastic granules.
[0030] In this embodiment, the hot air mechanism 3, the discharge mechanism 4, and the drying chamber 2 are all interconnected components. The cylindrical structure design of the drying chamber 2 enables it to hold a large number of plastic granules and achieves flexible rotation through the rotating connection at both ends. During the rotation, the guide section 5 on the inner wall of the drying chamber 2 plays a key role. Through its special central protruding strip structure, these guide sections 5 can effectively drive the plastic granules to move along the inner wall of the drying chamber 2 when the drying chamber 2 rotates, and break up the accumulated granules during the movement.
[0031] At the same time, this tumbling and dispersing action ensures that the particles can fully contact the hot airflow during the drying process, thereby achieving uniform drying.
[0032] Furthermore, the drying chamber 2 is also provided with a flow guiding mechanism 6 fixed at one end to the discharge mechanism 4. The flow guiding mechanism 6 includes a fixed rod 7 fixed to the discharge mechanism 4 and a plurality of flow guiding blades 8 disposed on the outer wall of the fixed rod 7. The flow guiding blades 8 are used to guide the hot air flow generated by the hot air mechanism 3 to the inner wall of the drying chamber 2.
[0033] The airflow guiding mechanism 6 plays a role in optimizing the distribution of hot airflow in the drying chamber 2. Its airflow guiding blades 8, through a special layout and shape design, can effectively guide the hot airflow generated by the hot air mechanism 3 to the inner wall of the drying chamber 2. This guiding effect allows the hot airflow to be distributed more evenly in the drying chamber 2, avoiding the concentration or dispersion of hot airflow in local areas, thereby improving the utilization efficiency of hot airflow.
[0034] Meanwhile, the design of the fixing rod 7 of the flow guiding mechanism 6 ensures its stability within the drying chamber 2, enabling it to maintain a good flow guiding effect throughout the rotation of the drying chamber 2.
[0035] Furthermore, the guide section 5 is a plurality of protruding components disposed on the inner wall of the drying chamber 2. The guide section 5 is a strip-shaped object with a central protrusion, and a trough for accommodating plastic particles is formed between adjacent guide sections 5.
[0036] In some embodiments, the guide portion 5 can be an arc-shaped strip disposed on the inner wall of the drying chamber 2, having a certain spiral shape. When moving the plastic particles, it can make them move horizontally in the drying chamber, which helps to fully dry them while facilitating their discharge from the drying chamber 2.
[0037] Furthermore, the hot air mechanism 3 includes a first housing 31 and a heating part 32 disposed in the first housing 31, and also includes an exhaust fan 33 disposed on one side of the heating part 32, with one end of the first housing 31 connected to the drying chamber 2.
[0038] In one embodiment, the heating unit 32 is an electric heating device installed on the air outlet side of the blower 33. The blower 33 generates a high-speed airflow, which, in conjunction with the electric heating device, generates a hot airflow and blows it into the drying chamber 2.
[0039] The hot air mechanism 3 generates and provides a stable hot airflow through its internal heating element 32 and blower 33. The heating element 32 heats the air to the required temperature, and the blower 33 blows the hot airflow evenly into the drying chamber 2.
[0040] The design of the first housing 31 not only protects the heating element 32 and the blower 33 to prevent heat loss, but also ensures that the hot airflow can enter the interior of the drying chamber 2 efficiently through its joint design with the drying chamber 2.
[0041] In one embodiment, the first housing 31 is provided with a feed inlet, through which plastic granules enter the drying chamber 2.
[0042] Furthermore, the discharge mechanism 4 includes a second housing 41 and a discharge port 42 disposed on one side of the bottom of the second housing 41. A ventilation fan is installed on the second housing 41, and the other end of the drying chamber 2 is connected to the second housing 41.
[0043] The discharge mechanism 4 is responsible for smoothly discharging the dried plastic granules from the device and expelling the waste gas generated during the drying process through a ventilation fan. The design of the second housing 41 provides protection for the discharge port 42 and the ventilation fan, while its connection with the drying chamber 2 ensures that the granules and waste gas can be discharged smoothly. The discharge mechanism 4 not only ensures the smooth progress of the drying process but also improves the safety and environmental friendliness of the device.
[0044] Furthermore, the machine body 1 is also provided with a drive device for driving the drying chamber 2 to rotate, the drive device including a transmission gear 9 and a drive motor 10 for driving the transmission gear 9 to rotate.
[0045] Furthermore, the outer wall of the drying chamber 2 is provided with a linkage part 11 for meshing with the transmission gear 9. When the drive motor 10 drives the transmission gear 9 to rotate, the transmission gear 9 drives the linkage part 11 to rotate, that is, drives the drying chamber 2 to rotate.
[0046] The drive unit achieves precise drive of the drying chamber 2 through the transmission gear 9 and the drive motor 10. The drive motor 10 provides stable power and transmits the power to the linkage part 11 on the outer wall of the drying chamber 2 through the transmission gear 9. This ensures that the drying chamber 2 rotates smoothly at the required speed and can also flexibly adjust the speed according to different drying process requirements. By precisely controlling the speed of the drying chamber 2, the drive unit can ensure that the particles are fully turned and dried evenly during the drying process.
[0047] Specifically, the drive motor 10 is located at the lower part of the machine body, and the transmission gear 9 is located on the machine body near the drying chamber 2. The transmission gear 9 is rotatably connected to the machine body 1 through a transmission shaft with bearings installed at both ends. The transmission shaft and the drive motor 10 are connected by a transmission belt. The drive motor 10 drives the transmission belt, thereby driving the transmission shaft to rotate, which in turn drives the transmission gear 9.
[0048] The linkage 11 can be a gear ring or a component that can mesh with the transmission gear 9, such as a chain. The linkage 11 is fixed to the outer wall of the drying chamber 2 and drives the drying chamber 2 under the drive of the transmission gear 9.
[0049] Furthermore, a pulley assembly 12 is provided on the part of the machine body 1 near the drying chamber 2, and a slide rail 13 that contacts the pulley assembly 12 is fixed around the outer wall of the drying chamber 2.
[0050] Furthermore, the pulley group 12 consists of several concave pulleys arranged on the machine body 1, and the external recesses of the pulleys match the slide rail 13.
[0051] The design of pulley block 12 and slide rail 13 significantly reduces the friction during the rotation of the drying chamber 2. The concave pulley of pulley block 12 and the slide rail 13 on the outer wall of the drying chamber 2 are closely matched, so that the drying chamber 2 can slide smoothly when rotating without being subjected to excessive resistance, which improves the stability of the rotation of the drying chamber 2. At the same time, the cooperation of pulley block 12 and slide rail 13 can also effectively reduce the wear of the outer wall of the drying chamber 2 and extend the service life of the equipment.
[0052] Furthermore, the inner wall surface of the drying chamber 2 is inclined, with the side closer to the hot air mechanism 3 being the highest point of the inclination and the side closer to the guide section 5 being the lowest point of the inclination.
[0053] The inclined design of the inner wall of the drying chamber 2 further optimizes the distribution and movement path of the particles, allowing the particles near the hot air mechanism 3 to flow smoothly to the guide section 5, avoiding local accumulation of particles in the drying chamber 2 and further improving the uniformity of drying.
[0054] The working process and principle of this utility model are as follows:
[0055] First, plastic granules enter the drying chamber 2 through the feed port on the first housing 31. Then, the heating part 32 of the hot air mechanism 3 heats the air to the required temperature, and the blower 33 blows these hot air streams evenly into the drying chamber 2. Inside the drying chamber 2, the guide vanes 8 of the guide mechanism 6 guide the hot air stream to the inner wall of the drying chamber 2 to ensure that the hot air stream can be evenly distributed. At the same time, the drive motor 10 of the drive device drives the linkage part 11 on the outer wall of the drying chamber 2 to rotate through the transmission gear 9, thereby causing the drying chamber 2 to start rotating. During the rotation, the guide part 5 on the inner wall of the drying chamber 2 moves the plastic granules through the raised strip structure in the middle and disperses the accumulated granules to ensure that the granules can fully contact the hot air stream. As the drying process proceeds, the dried plastic granules are discharged through the discharge port 42 of the discharge mechanism 4. At the same time, the ventilation fan discharges the exhaust gas generated during the drying process outside the device. The entire process achieves efficient and uniform drying of plastic granules through the synergistic action of various components.
[0056] The core principle of this invention lies in achieving uniform drying of plastic granules through optimized structural design of the drying chamber 2 and the synergistic effect of its components. The rotation of the drying chamber 2, via the guide section 5, drives the granules to move and disperse, preventing granule accumulation and ensuring that the granules can fully contact the hot airflow. The guide vanes 8 of the guide mechanism 6 further optimize the distribution of the hot airflow and improve its utilization efficiency. The heating section 32 and the blower 33 of the hot air mechanism 3 generate a stable hot airflow, providing the necessary heat for the drying process. The discharge port 42 and the ventilation fan of the discharge mechanism 4 ensure the smooth discharge of the dried granules and the disposal of waste. The exhaust of air maintains the air pressure balance within the drying chamber 2; the precise drive of the drive device ensures the smooth rotation of the drying chamber 2, while the design of the pulley block 12 and slide rail 13 reduces friction during rotation, improving the operating efficiency and service life of the equipment; in addition, the inclined design of the inner wall of the drying chamber 2 further optimizes the distribution and movement path of particles, avoids local accumulation, and further improves the uniformity of drying; through these designs, this utility model effectively solves the problems of particle accumulation, uneven drying, and particle adhesion existing in existing drying equipment, significantly improving production efficiency and product quality.
[0057] The specific embodiments of the utility model have been described in detail above, but they are only examples. The utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that the embodiments and descriptions above are merely illustrative of the principles of the utility model. Various changes and modifications can be made to the utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic granule drying device, comprising a body (1), characterized in that: A drying chamber (2) is rotatably mounted on the machine body (1). A hot air mechanism (3) and a discharge mechanism (4) are respectively mounted at both ends of the machine body (1). The drying chamber (2) is a cylindrical component that is rotatably connected at both ends to the hot air mechanism (3) and the discharge mechanism (4). A number of guide parts (5) for turning over plastic particles are provided on the inner wall of the drying chamber (2). During the rotation of the drying chamber (2), the guide parts (5) drive the plastic particles to move and break up the accumulated plastic particles.
2. The plastic granule drying device according to claim 1, characterized in that: The drying chamber (2) is also provided with a flow guiding mechanism (6) with one end fixed on the discharge mechanism (4). The flow guiding mechanism (6) includes a fixed rod (7) fixed on the discharge mechanism (4) and several flow guiding blades (8) arranged on the outer wall of the fixed rod (7). The flow guiding blades (8) are used to guide the hot air flow generated by the hot air mechanism (3) to the inner wall of the drying chamber (2).
3. The plastic granule drying device according to claim 2, characterized in that: The guide section (5) is a plurality of protrusions provided on the inner wall of the drying chamber (2). The guide section (5) is a strip-shaped object with a central protrusion. Adjacent guide sections (5) form a trough for accommodating plastic particles.
4. The plastic granule drying device according to claim 3, characterized in that: The hot air mechanism (3) includes a first housing (31) and a heating part (32) disposed in the first housing (31), and also includes an exhaust fan (33) disposed on one side of the heating part (32). One end of the first housing (31) is connected to the drying chamber (2).
5. A plastic granule drying device according to claim 4, characterized in that: The discharge mechanism (4) includes a second housing (41) and a discharge port (42) located on one side of the bottom of the second housing (41). A ventilation fan is installed on the second housing (41), and the other end of the drying chamber (2) is connected to the second housing (41).
6. The plastic granule drying device according to claim 1, characterized in that: The machine body (1) is also provided with a drive device for driving the drying chamber (2) to rotate. The drive device includes a transmission gear (9) and a drive motor (10) for driving the transmission gear (9) to rotate.
7. A plastic granule drying device according to claim 6, characterized in that: The outer wall of the drying chamber (2) is provided with a linkage part (11) for meshing with the transmission gear (9). When the drive motor (10) drives the transmission gear (9) to rotate, the transmission gear (9) drives the linkage part (11) to rotate, which in turn drives the drying chamber (2) to rotate.
8. The plastic granule drying device according to claim 1, characterized in that: A pulley assembly (12) is also provided on the part of the machine body (1) near the drying chamber (2), and a slide rail (13) that contacts the pulley assembly (12) is fixed around the outer wall of the drying chamber (2).
9. A plastic granule drying device according to claim 8, characterized in that: The pulley assembly (12) consists of several concave pulleys mounted on the body (1), with their external recesses matching the slide rail (13).
10. A plastic granule drying device according to claim 1, characterized in that: The inner wall surface of the drying chamber (2) is inclined, with the side closer to the hot air mechanism (3) being the highest point of the inclination and the side closer to the guide section (5) being the lowest point of the inclination.