Plastic particle drying device

By using the combination of drying components and stirring components in the plastic pellet drying device, the problem that hot air cannot penetrate the plastic particles above the barrel is solved, and uniform heating and efficient drying of the plastic pellets are achieved.

CN223216605UActive Publication Date: 2025-08-12HUIZHOU WEIMAI ELECTRIC CO LTD
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Patent Information

Application Number
CN202423077831.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-08-12
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In the existing plastic pellet drying device, hot air mainly enters from the bottom of the barrel, making it difficult for the plastic pellets above the barrel to fully dry, and hot air in the center is difficult to penetrate, reducing the drying efficiency.

Method used

Using the combination of drying components and stirring components, hot air is fed from the bottoms of both sides of the drying box, and the plastic particles are evenly stirred through multiple sets of stirring blades to make them fully contact with the hot air and accelerate the evaporation of moisture.

Benefits of technology

It improves the drying efficiency and quality of plastic particles, ensures that the plastic particles are uniformly heated, and shortens the drying time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic particle drying device which comprises a drying box, a drying assembly and a stirring assembly are matched, a plurality of groups of electric heating wires in the drying assembly generate a heat source, a fan conveys hot air into the drying box through a connecting pipe, the fan enables circulating air to be formed in the drying box, and temperature uniformity is guaranteed. A motor in the stirring assembly drives a rotating rod to rotate, then a first gear is driven to rotate, multiple sets of second gears meshed with the first gear drive stirring rods to rotate at the same time, efficient stirring is achieved, multiple sets of stirring rods and stirring blades work at the same time, it is guaranteed that plastic particles can be evenly mixed in the stirring process, and the plastic particles can be evenly heated; the drying assembly is tightly matched with the stirring assembly, the drying efficiency of the plastic particles can be remarkably improved, hot air is evenly distributed, stirring is sufficient, the plastic particles are evenly heated in the drying box, and therefore the drying time is shortened, and the drying quality is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic drying equipment, in particular to a plastic particle drying device. Background Art

[0002] Plastic particles refer to granular plastics, which are generally divided into more than 200 types and subdivided into thousands of types. Common plastic particles include general-purpose plastics, engineering plastics, and special plastics; general-purpose plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc.; engineering plastics: nylon, polytetrafluoroethylene, polyformaldehyde, polycarbonate silicone, etc.; special plastics: thermosetting plastics, functional polymer plastics, such as artificial kidneys.

[0003] The prior art provides a plastic pellet drying device (Announcement No. CN221717495U), comprising: a drying component, comprising a material storage barrel, an air inlet pipe arranged on the side of the material storage barrel, a thermostat arranged on the air inlet pipe, and a blower arranged at one end of the air inlet pipe; a reflux component, comprising a dust filter collector, a guide pipe, and a connecting pipe, wherein one end of the guide pipe is connected to the side of the dust filter collector, and the other end of the guide pipe is connected to the top of the material storage barrel; one end of the connecting pipe is connected to the top of the dust filter collector, and the other end of the connecting pipe is connected to the air inlet port of the blower. The device of the present invention can heat and dry the plastic pellets in the material storage barrel through the drying component, and can also recover the waste heat, thereby minimizing the energy consumption of the thermostat, thereby saving resources and reducing costs.

[0004] Based on the above patent search, the above patent can heat and dry the plastic particles in the barrel only through the drying component when in use. Since the hot air mainly enters from the bottom of the barrel, the plastic particles above the barrel may not be fully dried. When the plastic particles accumulate in the barrel, the center part may be difficult for the hot air to penetrate, resulting in poor drying effect, thereby reducing the drying efficiency of the plastic particles. Therefore, we need to propose a plastic particle drying device. Utility Model Content

[0005] The purpose of the present utility model is to provide a plastic particle drying device. Through the cooperation of a drying component and a stirring component, the drying component is responsible for generating hot air, and the hot air is sent into the bottom of the drying box on both sides to ensure that the hot air can be evenly distributed in the entire drying box. The stirring component uses multiple groups of stirring blades to evenly stir the plastic particles, so that they are fully exposed to the hot air and accelerate the evaporation of water, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A plastic particle drying device comprises a drying box, a support frame, a drying component and a stirring component used in conjunction with the drying component;

[0008] The support frame is installed on the top of the drying box, and the stirring assembly includes a motor;

[0009] The motor is fixedly mounted on the top of the support frame, the output end of the motor is fixedly connected to a rotating rod through a coupling, the outer side of the rotating rod is fixedly mounted with a first gear, the bottom end of the rotating rod is rotatably mounted on the inner bottom of the drying box, and multiple groups of stirring rods are rotatably mounted on the inner bottom of the support frame, the outer sides of the multiple groups of stirring rods are fixedly mounted with a second gear, the multiple groups of second gears are engaged with the first gear, and the outer sides of the multiple groups of stirring rods are fixedly connected with multiple groups of stirring blades.

[0010] Preferably, a plurality of support plates are installed inside the drying box, and the bottom ends of the plurality of stirring rods are rotatably mounted on the tops of the plurality of support plates.

[0011] Preferably, a scraper is fixedly mounted on the outer side of the rotating rod, and the bottom of the scraper is in contact with the inner bottom of the drying box.

[0012] Preferably, the drying component includes a heating box fixedly installed at the bottom of the drying box, multiple groups of support rods are installed inside the heating box, and electric heating wires are provided on the outer sides of the multiple groups of support rods. One side of the heating box is connected to a fan, and the air outlet pipe of the fan is connected to a connecting pipe, and both ends of the connecting pipe are respectively connected to the two sides of the drying box.

[0013] Preferably, an air inlet slot is provided on one side of the heating box, and a dustproof net is installed inside the heating box.

[0014] Preferably, the top and bottom of the dustproof net are both installed with limit strips, and the inner top and inner bottom of the heating box are both installed with mounting blocks for the limit strips to be engaged.

[0015] Preferably, the bottom of the drying box is connected to a discharge pipe, and a valve is provided on the discharge pipe.

[0016] Preferably, one side of the drying box is connected to a feed pipe, and the feed pipe is arranged at an angle.

[0017] Preferably, a fixing plate is installed on one side of the heating box, and the bottom of the fan is installed on the top of the fixing plate.

[0018] Preferably, a temperature sensor is installed inside the drying box, a controller is installed on one side of the drying box, and the temperature sensor is electrically connected to the controller.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model cooperates with a drying component and a stirring component. Multiple groups of electric heating wires in the drying component generate heat sources. The fan transports hot air to the inside of the drying box through a connecting pipe. The fan forms circulating air inside the drying box to ensure uniform temperature. The motor in the stirring component drives the rotating rod to rotate, which in turn drives the first gear to rotate. Multiple groups of second gears engaged with the first gear simultaneously drive the stirring rods to rotate to achieve efficient stirring. Multiple groups of stirring rods and stirring blades work simultaneously to ensure that the plastic particles can be evenly mixed during the stirring process, so that the plastic particles can be evenly heated. The close cooperation between the drying component and the stirring component can significantly improve the drying efficiency of the plastic particles. The hot air is evenly distributed and the stirring is sufficient, so that the plastic particles are evenly heated in the drying box, thereby shortening the drying time and improving the drying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of a drying box of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the stirring assembly of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the drying component of the utility model;

[0025] Figure 5 It is a cross-sectional schematic diagram of the heating box of the present invention.

[0026] In the figure: 1. Drying box; 2. Support frame; 3. Drying component; 31. Heating box; 32. Support rod; 33. Electric heating wire; 34. Fan; 35. Connecting pipe; 4. Stirring component; 41. Motor; 42. Rotating rod; 43. First gear; 44. Stirring rod; 45. Second gear; 46. Stirring blade; 5. Support plate; 6. Scraper; 7. Air inlet slot; 8. Dustproof net; 9. Limiting strip; 10. Mounting block; 11. Discharge pipe; 12. Feed pipe; 13. Fixing plate; 14. Temperature sensor; 15. Controller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-5The utility model provides a plastic particle drying device, comprising a drying box 1, a support frame 2, a drying component 3 and a stirring component 4 used in conjunction with the drying component 3;

[0029] The support frame 2 is installed on the top of the drying box 1, and the stirring assembly 4 includes a motor 41;

[0030] The motor 41 is fixedly mounted on the top of the support frame 2, and the output end of the motor 41 is fixedly connected to the rotating rod 42 through a coupling. The outer side of the rotating rod 42 is fixedly mounted with a first gear 43, and the bottom end of the rotating rod 42 is rotatably mounted on the inner bottom of the drying box 1. The inner bottom of the support frame 2 is rotatably mounted with multiple groups of stirring rods 44, and the outer sides of the multiple groups of stirring rods 44 are fixedly mounted with second gears 45, and the multiple groups of second gears 45 are all engaged with the first gear 43. The outer sides of the multiple groups of stirring rods 44 are fixedly connected with multiple groups of stirring blades 46.

[0031] In this embodiment, if Figure 3 As shown, multiple groups of support plates 5 are installed inside the drying box, and the bottom ends of the multiple groups of stirring rods 44 are rotatably installed on the tops of the multiple groups of support plates 5. By rotatably installing the bottom ends of the stirring rods 44 on the support plates 5, the force conditions of the stirring rods 44 can be optimized, the vibration and noise during the stirring process can be reduced, and the service life of the stirring rods 44 can be improved.

[0032] In a further preferred embodiment, Figure 2 As shown, a scraper 6 is fixedly installed on the outer side of the rotating rod 42, and the bottom of the scraper 6 fits with the inner bottom of the drying box 1. Through the setting of the scraper 6, after the drying is completed, the valve is opened and the plastic particles are discharged through the discharge pipe 11. The rotating scraper 6 prevents the plastic particles from accumulating at the bottom of the drying box 1, ensuring that the discharge process is smooth and unobstructed.

[0033] Further, such as Figure 4 As shown, the drying assembly includes a heating box 31 fixedly installed at the bottom of the drying box 1, and multiple groups of support rods 32 are installed inside the heating box 31. The outer sides of the multiple groups of support rods 32 are all sleeved with electric heating wires 33. One side of the heating box 31 is connected to a fan 34, and the air outlet duct of the fan 34 is connected to a connecting pipe 35. The two ends of the connecting pipe 35 are respectively connected to the two sides of the drying box 1. Through the multiple groups of electric heating wires 33, the heating area can be increased, the heating efficiency is improved, and the temperature in the drying box 1 is made more uniform. The fan 34 is connected to the two sides of the drying box 1 through the connecting pipe 35 to form an air circulation channel, which helps the hot air to circulate in the drying box 1 and ensures that the plastic particles are heated evenly.

[0034] Preferably, Figure 4As shown, an air inlet slot 7 is opened on one side of the heating box 31, and a dustproof net 8 is installed inside the heating box 31. The air inlet slot 7 opened on one side of the heating box 31 can increase air circulation, making it easier for external air to enter the interior of the heating box 31, which helps to improve the heating effect. The main function of the dustproof net 8 is to prevent external debris and dust from entering the interior of the heating box 31, which not only protects the heating element from pollution and damage, but also extends the service life of the heating box 31.

[0035] In addition, if Figure 5 As shown, the top and bottom of the dustproof net 8 are installed with limiting strips 9, and the inner top and inner bottom of the heating box 31 are installed with mounting blocks 10 for the limiting strips 9 to be clamped. The clamping design of the limiting strips 9 and the mounting blocks 10 makes the installation and disassembly process of the dustproof net 8 easier, without the need for complicated operations or tools, saving time and energy, and at the same time ensuring that the position of the dustproof net 8 in the heating box 31 is fixed and not easy to move or fall off, thereby improving its stability.

[0036] It is worth noting that if Figure 1 As shown, the bottom of the drying box 1 is connected to a discharge pipe 11, and a valve is provided on the discharge pipe 11. Through the setting of the valve, during the operation of the drying box 1, the valve on the discharge pipe 11 can be closed to prevent external impurities from entering the interior of the drying box 1. At the same time, it can also avoid direct splashing of high-temperature materials, thereby improving the safety of operation.

[0037] Further, such as Figure 1 As shown, one side of the drying box 1 is connected to a feed pipe 12, which is arranged at an angle. The inclined feed pipe 12 allows the plastic particles to enter the drying box 1 more smoothly under the action of gravity, thereby reducing the possibility of blockage and accumulation and improving the feeding efficiency.

[0038] Preferably, Figure 1 As shown, a fixing plate 13 is installed on one side of the heating box 31, and the bottom of the fan 34 is installed on the top of the fixing plate 13. The setting of the fixing plate 13 can increase the stability of the fan 34 and prevent it from moving or shaking during operation, thereby ensuring its normal operation.

[0039] In addition, if Figure 2 As shown, a temperature sensor 14 is installed inside the drying box 1, and a controller 15 is installed on one side of the drying box 1. The temperature sensor 14 is electrically connected to the controller 15. The temperature inside the drying box 1 can be monitored in real time through the temperature sensor 14, and the signal is transmitted to the controller 15 to achieve precise temperature control to meet different drying requirements. Precise temperature control helps to maintain the stability of the temperature in the drying box 1, thereby optimizing the drying effect, making the items evenly heated, and improving the drying quality.

[0040] Working principle: When the present invention is in use, plastic particles enter the drying box 1 through the feed pipe 12, and the controller 15 starts the fan 34. Negative pressure is generated in the fan 34 to suck external cold air into the heating box 31. Multiple groups of electric heating wires 33 arranged in the heating box 31 heat the cold air inside the heating box 31. Then the fan 34 transports the heated hot air to the drying box 1 through the connecting pipe 35. The hot air dries the plastic particles from top to bottom. At the same time, the motor 41 is started, and the motor 41 drives the rotating rod 42 to rotate, thereby driving the first gear 43 to rotate. Multiple groups of second gears 45 engaged with the first gear 43 simultaneously drive the stirring rod 44 to rotate, and the stirring rod 44 drives the stirring blades to mix and stir the plastic particles, ensuring that the plastic particles can be evenly mixed during the stirring process, so that the plastic particles can be evenly heated, thereby completing the efficient drying operation of the plastic particles.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic granule drying device, comprising a drying box (1), characterized in that: It also includes a support frame (2), a drying component (3), and a stirring component (4) used in conjunction with the drying component (3); The support frame (2) is installed on the top of the drying box (1), and the stirring assembly (4) includes a motor (41); The motor (41) is fixedly mounted on the top of the support frame (2); the output end of the motor (41) is fixedly connected to a rotating rod (42) via a coupling; a first gear (43) is fixedly mounted on the outer side of the rotating rod (42); the bottom end of the rotating rod (42) is rotatably mounted on the inner bottom of the drying box (1); a plurality of groups of stirring rods (44) are rotatably mounted on the inner bottom of the support frame (2); a second gear (45) is fixedly mounted on the outer side of each of the plurality of groups of stirring rods (44); each of the plurality of groups of the second gears (45) is meshed with the first gear (43); and a plurality of groups of stirring blades (46) are fixedly connected to the outer side of each of the plurality of groups of stirring rods (44).

2. A plastic particle drying device according to claim 1, characterized in that: A plurality of support plates (5) are installed inside the drying box, and the bottom ends of the plurality of stirring rods (44) are rotatably installed on the tops of the plurality of support plates (5).

3. The plastic particle drying device according to claim 1, characterized in that: A scraper (6) is fixedly mounted on the outer side of the rotating rod (42), and the bottom of the scraper (6) is in contact with the inner bottom of the drying box (1).

4. The plastic particle drying device according to claim 1, characterized in that: The drying assembly comprises a heating box (31) fixedly mounted on the bottom of the drying box (1); a plurality of support rods (32) are mounted inside the heating box (31); the outer sides of the plurality of support rods (32) are all provided with electric heating wires (33); one side of the heating box (31) is connected to a fan (34); the air outlet pipe of the fan (34) is connected to a connecting pipe (35); and both ends of the connecting pipe (35) are respectively connected to the two sides of the drying box (1).

5. The plastic particle drying device according to claim 4, characterized in that: An air inlet slot (7) is provided on one side of the heating box (31), and a dustproof net (8) is installed inside the heating box (31).

6. The plastic particle drying device according to claim 5, characterized in that: Limiting strips (9) are installed on the top and bottom of the dustproof net (8), and mounting blocks (10) for engaging the limiting strips (9) are installed on the inner top and inner bottom of the heating box (31).

7. The plastic particle drying device according to claim 1, characterized in that: The bottom of the drying box (1) is connected to a discharge pipe (11), and a valve is provided on the discharge pipe (11).

8. The plastic particle drying device according to claim 1, characterized in that: One side of the drying box (1) is connected to a feed pipe (12), and the feed pipe (12) is arranged at an angle.

9. The plastic particle drying device according to claim 4, characterized in that: A fixing plate (13) is installed on one side of the heating box (31), and the bottom of the fan (34) is installed on the top of the fixing plate (13).

10. The plastic particle drying device according to claim 1, characterized in that: A temperature sensor (14) is installed inside the drying box (1), a controller (15) is installed on one side of the drying box (1), and the temperature sensor (14) is electrically connected to the controller (15).

Citation Information

Patent Citations

  • Plastic particle drying device

    CN221717495U