Plastic particle air drying device

By combining a bidirectional air-drying device and a spiral air duct with a blocking unit, the problem of uneven and incomplete drying of plastic particles is solved, achieving a high-efficiency and low-cost drying effect, and ensuring the drying quality of plastic particles and the stability of subsequent processing.

CN224162943UActive Publication Date: 2026-04-24ANHUI CHANGYING PLASTIC IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI CHANGYING PLASTIC IND CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing methods for drying plastic particles suffer from high equipment costs, high energy consumption, uneven and incomplete drying, resulting in residual moisture in some particles, which affects the quality of subsequent processing and storage stability.

Method used

A two-way air-drying device is adopted, which combines a spiral air duct and a blocking unit. By blowing air upwards and using reverse blocking brushes, the residence time of particles in the airflow is extended to ensure the air-drying effect.

Benefits of technology

This process ensures thorough drying of plastic particles, reduces equipment costs, improves drying quality and efficiency, prevents particle clumping, and guarantees the quality of subsequent processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic particle air-drying device, which relates to the technical field of plastic production and comprises a support table, a blowing component fixedly arranged at the top of the support table, an air-drying component butted with the top of the blowing component, and a retarding unit fixedly arranged at the top of the support table and communicated with the air-drying component, the material receiving assembly is fixedly connected to the top of the supporting table and connected with the retarding unit; the air drying assembly comprises a main air drying cylinder fixedly connected to the top of the air blowing assembly, a supporting base fixedly connected to the top of the main air drying cylinder, a material guiding chamber fixedly connected to the top of the supporting base, and a spiral air drying pipe which is in butt joint communication with the supporting base and surrounds the main air drying cylinder. According to the plastic particle air-drying device, multi-channel air-drying operation on plastic particles is achieved, the spiral air channel is utilized, the air-drying time of the plastic particles is prolonged, the dynamic effect of the plastic particles in the guiding and conveying period can be guaranteed, reverse blocking can be conducted on the plastic particles in the discharging stage through the blocking unit, and the blocking effect is good. And the device can effectively cope with the condition that the plastic particles are not air-dried thoroughly.
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Description

Technical Field

[0001] This utility model relates to the field of plastic production technology, specifically a plastic particle drying device. Background Technology

[0002] Plastic particles are the basic raw material for plastic products. They are usually in the form of granules with a diameter of 1 to 5 mm and need to be processed into the final product through processes such as melting, injection molding, or blow molding. Because plastic particles easily absorb moisture during the production process, if they are not dried sufficiently, they may clump during storage or cause problems such as bubbles and surface defects during subsequent processing. Therefore, air drying is necessary.

[0003] Currently, the common method for drying plastic particles involves installing a blowing device on a mesh conveyor belt, using airflow to blow the particles during transport to achieve drying; however, this traditional method has the following drawbacks:

[0004] 1. Traditional air drying methods require multiple sets of air blowing facilities, which increases equipment costs and energy consumption. As plastic particles accumulate on the conveyor belt, it is difficult to achieve uniform drying by relying on unidirectional air blowing alone. Some particles retain moisture due to insufficient contact area or poor air penetration, which affects the quality of subsequent processing.

[0005] 2. Existing air-drying equipment lacks optimization of airflow distribution and particle flow state, resulting in incomplete air drying. Some particles still carry moisture. If particles that are not fully dried are packaged directly, they may absorb moisture and clump during transportation or storage, which may even affect subsequent injection molding processes.

[0006] Therefore, an improved plastic particle drying device is needed. Utility Model Content

[0007] The purpose of this invention is to provide a plastic particle drying device to solve the problems mentioned in the prior art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a plastic particle drying device, comprising: a support platform, an air blowing assembly fixed to the top of the support platform, a drying assembly connected to the top of the air blowing assembly, a blocking unit fixed to the top of the support platform and communicating with the drying assembly, and a receiving assembly fixed to the top of the support platform and connected to the blocking unit; the drying assembly comprising a main drying cylinder fixed to the top of the air blowing assembly, a support base fixed to the top of the main drying cylinder, a guide chamber fixed to the top of the support base, and a spiral drying pipe connected to the support base and surrounding the main drying cylinder; the blocking unit comprising an installation housing fixed to the top of the support platform and communicating with the spiral drying pipe, a guide plate one and a guide plate two fixed inside the installation housing, and a blocking brush connected to the installation housing and located above the guide plate one and the guide plate two; the air blowing assembly comprising a negative pressure housing fixed to the top of the support platform and communicating with the main drying cylinder, and a blower fixed to the top of the support platform and communicating with the negative pressure housing.

[0009] As a preferred option, the air blowing assembly also includes a feed pipe, with a connected feed pipe installed at the top of the negative pressure housing, and a guide slope provided at the bottom inside the negative pressure housing.

[0010] As a preferred embodiment, the receiving assembly includes a second feeding plate, a receiving box, and a mounting channel. The mounting channel is fixedly installed on one side of the mounting housing, and the second feeding plate is fixedly installed inside the mounting channel. The receiving box is placed on the support platform at the end of the second feeding plate, and the receiving box is connected to the second feeding plate.

[0011] As a preferred embodiment, the air-drying assembly also includes a material guide port, which is fixedly provided on the top of the support base, and the top surface of the support base is inclined.

[0012] As a preferred embodiment, the blocking unit also includes a pulley and a motor. The motor is fixedly installed on one side of the mounting housing, and the output end of the motor is connected to one end of the blocking brush. The other coaxial end of the blocking brush is connected via the pulley. A discharge port corresponding to the receiving assembly is provided on one side of the mounting housing, and a first discharge plate extending to the top surface of the second discharge plate is fixedly installed at the bottom of the discharge port.

[0013] As a preferred option, the blocking unit also includes a guide plate three. The guide plate three is fixedly installed inside the mounting housing, and the guide plate three is located between the guide plate one and the guide plate two. The guide plate one, the guide plate two and the guide plate three are all inclined downwards.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The drying assembly enables bidirectional drying of plastic particles. The upward blowing method ensures that the plastic particles are fully dried. The spiral air duct extends the drying time of the plastic particles and ensures the dynamic effect of the plastic particles during the conveying process, thereby improving the drying quality.

[0016] The blocking unit can reverse the blocking of plastic particles during the feeding stage, so that the device can effectively deal with the situation where the plastic particles are not completely dried, increase the residence time of the plastic particles in the airflow, and still allow drying during the residence period to ensure the overall drying effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the plastic particle drying device of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the plastic particle drying device of this utility model;

[0019] Figure 3This is a schematic diagram of the assembly structure of the blocking unit and the receiving assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the blocking unit of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the air-drying component of this utility model.

[0022] Figure label:

[0023] 100. Support platform;

[0024] 200. Air drying assembly; 201. Main air drying duct; 202. Spiral air drying pipe; 203. Material guide chamber; 204. Support base; 205. Material guide port;

[0025] 300. Restriction unit; 301. Mounting housing; 3011. Discharge port; 3012. Feeding plate one; 302. Pulley; 303. Motor; 304. Restriction brush; 305. Guide plate one; 306. Guide plate two; 307. Guide plate three;

[0026] 400. Receiving assembly; 401. Feeding plate two; 402. Receiving box; 403. Mounting channel;

[0027] 500, Air blowing assembly; 501, Negative pressure housing; 5011, Guide slope; 502, Feed pipe; 503, Blower. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: This utility model provides a technical solution for a plastic particle drying device, such as... Figures 1-5 As shown, it includes: a support platform 100, an air blowing assembly 500 fixed to the top of the support platform 100, a drying assembly 200 connected to the top of the air blowing assembly 500, a blocking unit 300 fixed to the top of the support platform 100 and connected to the drying assembly 200, and a receiving assembly 400 fixed to the top of the support platform 100 and connected to the blocking unit 300.

[0030] In the above scheme:

[0031] The support platform 100 supports the working components to complete the load-bearing operation;

[0032] The air blowing assembly 500 can blow air into the drying area using high-pressure air blowing, providing a drying basis for plastic particles.

[0033] The drying assembly 200 enables multiple drying processes for plastic particles. The upward blowing method ensures that the plastic particles can be fully dried. The spiral air duct extends the drying time of the plastic particles and ensures the dynamic effect of the plastic particles during the conveying process, thereby improving the drying quality.

[0034] The blocking unit 300 can reverse the blocking of plastic particles during the feeding stage, so that the device can effectively deal with the situation that the plastic particles are not completely dried, increase the residence time of the plastic particles in the airflow, and can still be dried during the residence period to ensure the overall drying effect.

[0035] The receiving component 400 can receive the dried plastic particles and facilitate personnel to observe and control the degree of drying of the plastic particles. The drying component 200 includes a main drying cylinder 201 fixed to the top of the blowing component 500, a support base 204 fixed to the top of the main drying cylinder 201, a guide chamber 203 fixed to the top of the support base 204, and a spiral drying pipe 202 connected to the support base 204 and surrounding the main drying cylinder 201; the blocking unit 300 includes a mounting housing 301 fixed to the top of the support platform 100 and connected to the spiral drying pipe 202, a first guide plate 305 and a second guide plate 306 fixed inside the mounting housing 301, and a blocking brush 304 connected inside the mounting housing 301 and located above the first guide plate 305 and the second guide plate 306.

[0036] The air blowing assembly 500 includes a negative pressure housing 501 fixed to the top of the support platform 100 and connected to the main air drying duct 201, and a blower 503 fixed to the top of the support platform 100 and connected to the negative pressure housing 501.

[0037] During daily work:

[0038] During the process, the plastic particles that need to be dried are injected into the negative pressure housing 501. The blower 503 propels the particles forward, allowing them to enter the main drying duct 201. Under the influence of airflow, the particles surge upwards and, while still dried, enter the guide chamber 203, where they are first collected and then guided into the spiral drying pipe 202. The spiral drying pipe 202 uses a downward spiral motion accompanied by airflow to guide the particles, and further drying occurs during this process until they enter the mounting housing 301. Then, the dried plastic particles are guided into the receiving component 400 for collection through the cooperation of the guide plate 305 and the guide plate 306. If the collected particles are not completely dried, the reverse rotation of the blocking brush 304 can reverse the direction of the guided particles, increasing their residence time at the air outlet and ensuring the drying effect. The electrical components on the device are connected to an external control system via wires. The control system refers to the control center of the production workshop.

[0039] like Figures 1-5 As shown, in order to allow the plastic particles to enter the device smoothly and be guided, the blowing assembly 500 further includes a feed pipe 502. The top of the negative pressure housing 501 is connected to the feed pipe 502, and the bottom of the negative pressure housing 501 is provided with a guide slope 5011.

[0040] Specifically, during the process, the plastic particles that need to be dried are injected into the negative pressure housing 501 through the feed pipe 502 and advanced under the blowing effect of the blower 503. Finally, the plastic particles are blown upward by the guide slope 5011, so that the plastic particles can enter the main drying cylinder 201.

[0041] like Figures 1-5 As shown, in order to ensure that the dried plastic particles can be collected uniformly, the receiving assembly 400 further includes a second feeding plate 401, a receiving box 402, and a mounting channel 403. The mounting channel 403 is fixedly installed on one side of the mounting housing 301, and the second feeding plate 401 is fixedly installed inside the mounting channel 403. The receiving box 402 is placed on the support platform 100 at the end of the second feeding plate 401, and the receiving box 402 is connected to the second feeding plate 401.

[0042] Specifically, during the process, the dried plastic particles are discharged from the mounting housing 301 and enter the feeding plate 401 in the mounting channel 403 for guidance. The feeding plate 401 is inclined to guide the plastic particles to the receiving box 402 for collection. After loading, the particles in the receiving box 402 can be poured in.

[0043] like Figures 1-5As shown, in order to allow plastic particles to be smoothly discharged from the main drying cylinder 201, the drying assembly 200 further includes a guide port 205. The guide port 205 is fixed on the top of the support base 204, and the top surface of the support base 204 is inclined.

[0044] Specifically, during this process, the plastic particles are blown upwards by the airflow, causing them to be discharged from the top guide port 205 of the main air drying duct 201. The top of the guide chamber 203 is equipped with an arc-shaped structure, so that the particles blown to the top will diffuse around under the guidance of the arc-shaped structure, allowing the particles to fall smoothly onto the support seat 204. After falling onto the support seat 204, the plastic particles are guided to the top of the spiral air drying duct 202 through the inclined surface at the top of the support seat 204, causing the particles to enter the spiral air drying duct 202.

[0045] like Figure 3 As shown, in order to enable the blocking unit 300 to perform linkage blocking operation, the blocking unit 300 further includes a pulley 302 and a motor 303. The motor 303 is fixedly installed on one side of the mounting housing 301, and the output end of the motor 303 is connected to one end of the blocking brush 304. The other coaxial end of the blocking brush 304 is connected to the pulley 302. A discharge port 3011 corresponding to the receiving assembly 400 is provided on one side of the mounting housing 301, and a discharge plate 3012 extending to the top surface of the discharge plate 401 is fixedly installed at the bottom of the discharge port 3011.

[0046] Specifically, during this process, the motor 303 is started, and the output end of the motor 303 drives the shaft end of one set of blocking brushes 304. The blocking brushes 304 are composed of brush rollers and brush bodies. The brush rollers are driven to rotate, and the shaft end of the brush rollers can be synchronously driven by the other shaft end to enter the transmission state through the pulley 302, thereby driving the other set of blocking brushes 304 to rotate, thus achieving a linkage effect.

[0047] During this process, when the particles are introduced onto the guide plate 2 306, they can be guided downwards. The particles will roll down through the guide plate 2 306 onto the discharge plate 1 3012 inside the discharge port 3011, and finally be sent onto the discharge plate 2 401 through the discharge plate 1 3012.

[0048] Furthermore, the blocking unit 300 also includes a guide plate 307. The guide plate 307 is fixedly installed inside the mounting housing 301, and the guide plate 307 is located between the guide plate 1 305 and the guide plate 2 306. The guide plate 1 305, the guide plate 2 306 and the guide plate 307 are all inclined downwards.

[0049] Specifically, during this process, after the particles fall onto the first guide plate 305, they first enter the third guide plate 307, and are then fed onto the second guide plate 306 through the transfer function of the third guide plate 307. Finally, the particles are fed onto the second unloading plate 401.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plastic particle drying device, characterized in that, include: Support platform (100), air blowing assembly (500) fixed on top of support platform (100), air drying assembly (200) connected to top of air blowing assembly (500), blocking unit (300) fixed on top of support platform (100) and connected to air drying assembly (200), and receiving assembly (400) fixed on top of support platform (100) and connected to blocking unit (300). The air drying assembly (200) includes a main air drying duct (201) fixed to the top of the air blowing assembly (500), a support base (204) fixed to the top of the main air drying duct (201), a guide chamber (203) fixed to the top of the support base (204), and a spiral air drying pipe (202) connected to the support base (204) and surrounding the main air drying duct (201). The blocking unit (300) includes a mounting housing (301) fixed to the top of the support platform (100) and connected to the spiral air drying pipe (202), a first guide plate (305) and a second guide plate (306) fixed inside the mounting housing (301), and a blocking brush (304) mating inside the mounting housing (301) and located above the first guide plate (305) and the second guide plate (306). The air blowing assembly (500) includes a negative pressure housing (501) fixed to the top of the support platform (100) and communicating with the main air duct (201), and a blower (503) fixed to the top of the support platform (100) and communicating with the negative pressure housing (501).

2. The plastic particle drying device according to claim 1, characterized in that: The air blowing assembly (500) also includes a feed pipe (502), and the top of the negative pressure housing (501) is connected to the feed pipe (502), and the bottom of the negative pressure housing (501) is provided with a guide slope (5011).

3. The plastic particle drying device according to claim 2, characterized in that: The receiving assembly (400) includes a second feeding plate (401), a receiving box (402), and a mounting channel (403). The mounting channel (403) is fixedly installed on one side of the mounting housing (301). The second feeding plate (401) is fixedly installed inside the mounting channel (403). The receiving box (402) is placed on the support platform (100) at the end of the second feeding plate (401), and the receiving box (402) is connected to the second feeding plate (401).

4. The plastic particle drying device according to claim 3, characterized in that: The air-drying assembly (200) also includes a feed inlet (205), and the feed inlet (205) is fixedly provided on the top of the support base (204), and the top surface of the support base (204) is inclined.

5. A plastic particle drying device according to claim 4, characterized in that: The blocking unit (300) also includes a pulley (302) and a motor (303). The motor (303) is fixedly installed on one side of the mounting housing (301), and the output end of the motor (303) is connected to one end of the blocking brush (304). The other coaxial end of the blocking brush (304) is connected via the pulley (302). A discharge port (3011) corresponding to the receiving assembly (400) is provided on one side of the mounting housing (301), and a discharge plate (3012) extending to the top surface of the discharge plate (401) is fixedly installed at the bottom of the discharge port (3011).

6. A plastic particle drying device according to claim 5, characterized in that: The blocking unit (300) also includes a guide plate three (307). The guide plate three (307) is fixedly installed inside the mounting housing (301), and the guide plate three (307) is located between the guide plate one (305) and the guide plate two (306). The guide plate one (305), the guide plate two (306) and the guide plate three (307) are all inclined downwards.