Plastic particle drying equipment with screening structure

Abstract

The utility model relates to the technical field of plastic particle drying, and discloses plastic particle drying equipment with a screening structure, which comprises a shell and supporting legs arranged on the lower side of the shell, a screening plate is fixedly arranged on the inner wall of the shell, and drying boxes are respectively arranged on the upper side and the lower side of the screening plate. And a stirring mechanism is installed in the shell and penetrates through the screening plate, an air heater is installed on one side of the shell, and the air heater communicates with the portions, on the upper side and the lower side of the screening plate, of the drying box correspondingly. Plastic particles are put into the drying box after being produced, the mixed plastic particles are stirred through the stirring mechanisms at the corresponding positions, the plastic particles are stirred on the upper side of the screening plate, and in the stirring process, the plastic particles with small specifications can fall into the drying box on the lower side of the screening plate through the screening plate; and in the stirring and screening process, an air heater generates hot air to blow the interior of the drying box, so that the drying speed can be increased.

Description

Technical Field

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

[0002] Plastic granule drying is a crucial step in plastic processing, primarily used to remove moisture from the granules to ensure their quality and performance during subsequent molding and processing. Plastic granules may absorb moisture during production, transportation, and storage, especially for some highly hydrophilic engineering plastics. When heated, this moisture turns into steam, potentially causing problems such as bubbles, flash, or uneven surface texture. Moisture in plastic can negatively impact mechanical strength, toughness, and impact resistance. It can also lead to uneven coloring after processing. Therefore, plastic granule drying is a vital step in ensuring the quality of processed plastic products, significantly affecting the physical and mechanical properties and appearance of the finished product. When selecting drying methods and equipment, it is essential to consider the specific type of plastic and production requirements to achieve the best drying results.

[0003] When producing plastic granules in large quantities, dryers are needed for drying. After drying, the plastic granules need to be screened to separate plastic granules with large size differences. Conventional dryers can only dry the granules and cannot screen them. Screening after drying can easily cause the plastic granules to become damp again. Therefore, a plastic granule drying equipment with screening function and accelerated drying is designed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a plastic granule drying device with a screening structure, which has the advantages of screening and accelerated drying. It solves the problem that conventional dryers can only dry the granules but cannot screen them, and screening after drying can easily cause the plastic granules to become damp again.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned screening function and accelerate drying, this utility model provides the following technical solution: A plastic granule drying device with a screening structure includes a shell and support legs installed on the lower side of the shell. A screening plate is fixedly installed on the inner wall of the shell, and drying chambers are installed on the upper and lower sides of the screening plate, respectively. A stirring mechanism is installed inside the shell, and the stirring mechanism penetrates through the screening plate. A hot air blower is installed on one side of the shell, and the hot air blower is connected to the drying chambers on the upper and lower sides of the screening plate. After the plastic granules are produced, they are put into the drying chamber. The mixed plastic granules are stirred by the stirring mechanism at the corresponding position. The plastic granules are stirred on the upper side of the screening plate. During the stirring process, smaller plastic granules will fall through the screening plate into the drying chamber below the screening plate. During the stirring and screening process, the hot air blower generates hot air to blow into the interior of the drying chamber, which can accelerate the drying speed.

[0008] Preferably, the stirring mechanism includes a stirring shaft installed at the bottom of the outer casing. The upper end of the stirring shaft penetrates the interior of the screening plate, and a second stirring blade is installed at the upper end of the stirring shaft. A first stirring blade is installed at the lower end of the stirring shaft and is located on the upper side of the outer casing. The stirring shaft is divided into upper and lower ends, each of which drives the corresponding stirring blade to rotate, causing it to rotate the plastic granules. The second stirring blade is located on the upper side of the screening plate and is longer than the first stirring blade. During the stirring process, the second stirring blade not only rotates the plastic granules but also screens them. The screened plastic granules are then rotated by the first stirring blade and then used in conjunction with a hot air blower to quickly dry the plastic granules.

[0009] Preferably, a mounting bracket is fixedly installed at the bottom of the outer casing, and a drive motor is installed inside the mounting bracket. The output end of the drive motor is fixedly connected to the lower end of the stirring shaft. The drive motor is located at the bottom of the outer casing and is powered by an additional power supply device, including a hot air blower. The mounting bracket is used to support and install the drive motor. The drive motor drives the stirring shaft to rotate, which in turn drives the first and second stirring blades at corresponding positions to rotate, thereby stirring the plastic granules at the corresponding positions.

[0010] Preferably, a protective net is installed at the output end of the hot air blower, and the screening plate is inserted inside the protective net. The output end of the hot air blower penetrates the interior of the drying chamber. The protective net can prevent plastic particles from entering the interior of the hot air blower, and the mesh of the protective net is much smaller than the size of the plastic particles. The hot air generated by the hot air blower passing through the protective net also helps to accelerate the drying process.

[0011] Preferably, a second discharge pipe is installed at the bottom of the outer shell, and the second discharge pipe communicates with the inner groove at the bottom of the outer shell. A connecting pipe is installed on one side of the screening plate, and the lower end of the connecting pipe penetrates the bottom of the outer shell. A first discharge pipe is installed at the lower end of the connecting pipe, and the first discharge pipe is located at the bottom of the outer shell. The second discharge pipe is used to transport the screened plastic granules, and the first discharge pipe is used to transport the plastic granules on the upper side of the screening plate. The two are not connected to each other, and each is equipped with a solenoid valve at its upper end to control the discharge of plastic granules. The plastic granules on the upper side of the screening plate enter the first discharge pipe through the connecting pipe, and the remaining plastic granules can be pushed to the corresponding pipe by the stirring blades at the corresponding positions.

[0012] Preferably, the drying chamber has a feed inlet at its upper end, and a top cover is installed at the top of the feed inlet. The top cover is rotatably connected to the outside of the feed inlet. Plastic granules are fed into the drying chamber through the feed inlet, and the top cover is used to keep the inside of the drying chamber clean and provides protection.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a plastic granule drying device with a screening structure, which has the following beneficial effects: After the plastic granules are produced, they are put into the drying chamber. The mixed plastic granules are stirred by the stirring mechanism at the corresponding position. The plastic granules are stirred on the upper side of the screening plate. During the stirring process, the smaller plastic granules fall through the screening plate into the drying chamber below the screening plate. During the stirring and screening process, the hot air blower generates hot air to blow into the interior of the drying chamber, which can accelerate the drying speed, thereby achieving the effects of screening plastic granules and accelerating the drying of plastic granules. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present utility model;

[0016] Figure 2 This is a structural diagram of the open state of this utility model;

[0017] Figure 3 This is a bottom view of the structure of this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the outer shell of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Support leg; 3. Feed inlet; 4. Top cover; 5. Hot air blower; 6. First discharge pipe; 7. Second discharge pipe; 8. Drying box; 9. Protective net; 10. Mounting frame; 11. Drive motor; 12. Screening plate; 13. Stirring shaft; 14. First stirring blade; 15. Connecting pipe; 16. Second stirring blade. Detailed Implementation

[0020] 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.

[0021] Example: Please refer to Figure 1-4 A plastic granule drying device with a screening structure includes a shell 1 and a support leg 2 installed on the lower side of the shell 1. A screening plate 12 is fixedly installed on the inner wall of the shell 1, and a drying chamber 8 is installed on the upper and lower sides of the screening plate 12 respectively. A stirring mechanism is installed inside the shell 1 and passes through the screening plate 12. A hot air blower 5 is installed on one side of the shell 1 and is connected to the drying chambers 8 on the upper and lower sides of the screening plate 12 respectively.

[0022] After the plastic granules are produced, they are put into the drying chamber 8. The mixed plastic granules are stirred by the stirring mechanism at the corresponding position. The plastic granules are stirred on the upper side of the screening plate 12. During the stirring process, the smaller plastic granules will fall through the screening plate 12 into the drying chamber 8 below the screening plate 12. During the stirring and screening process, the hot air blower 5 generates hot air to blow into the interior of the drying chamber 8, which can accelerate the drying speed.

[0023] The stirring mechanism includes a stirring shaft 13, which is installed at the bottom of the outer casing 1. The upper end of the stirring shaft 13 penetrates the interior of the sieve plate 12. A second stirring blade 16 is installed at the upper end of the stirring shaft 13, and a first stirring blade 14 is installed at the lower end of the stirring shaft 13. The first stirring blade 14 is located on the upper side of the outer casing 1.

[0024] The stirring shaft 13 is divided into upper and lower ends, each of which drives the corresponding stirring blade to rotate, causing the plastic particles to rotate. The second stirring blade 16 is set on the upper side of the screening plate 12 and is longer than the first stirring blade 14. During the stirring process, the second stirring blade 16 not only makes the plastic particles rotate but also screens them. The screened plastic particles are driven to rotate by the first stirring blade 14 and then used in conjunction with the hot air blower 5 to quickly dry the plastic particles.

[0025] A mounting bracket 10 is fixedly installed at the bottom of the outer casing 1, and a drive motor 11 is installed inside the mounting bracket 10. The output end of the drive motor 11 is fixedly connected to the lower end of the stirring shaft 13.

[0026] The drive motor 11 is located at the bottom of the housing 1 and is powered by an additional power supply device, including a hot air blower 5. The mounting bracket 10 is used to support and install the drive motor 11. The drive motor 11 drives the stirring shaft 13 to rotate, which in turn drives the first stirring blade 14 and the second stirring blade 16 at the corresponding positions to rotate, thereby stirring the plastic particles at the corresponding positions.

[0027] A protective net 9 is installed at the output end of the hot air blower 5, and the screening plate 12 is inserted inside the protective net 9.

[0028] The output end of the hot air blower 5 runs through the interior of the drying chamber 8. The protective net 9 can prevent plastic particles from entering the interior of the hot air blower 5. Moreover, the mesh of the protective net 9 is much smaller than the size of the plastic particles. The hot air generated by the hot air blower 5 passing through the protective net 9 also helps to accelerate the drying process.

[0029] A second discharge pipe 7 is installed at the bottom of the outer shell 1, and the second discharge pipe 7 is connected to the inner groove at the bottom of the outer shell 1. A connecting pipe 15 is installed on one side of the screening plate 12, and the lower end of the connecting pipe 15 penetrates the bottom of the outer shell 1. A first discharge pipe 6 is installed at the lower end of the connecting pipe 15, and the first discharge pipe 6 is located at the bottom of the outer shell 1.

[0030] The second discharge pipe 7 is used to transport the screened plastic granules, and the first discharge pipe 6 is used to transport the plastic granules on the upper side of the screening plate 12. The two are not connected to each other, and each of them is equipped with a solenoid valve at its upper end to control the discharge of plastic granules. The plastic granules on the upper side of the screening plate 12 enter the first discharge pipe 6 through the connecting pipe 15. The remaining plastic granules can be pushed to the corresponding pipe by the stirring blades at the corresponding positions.

[0031] The upper end of the drying oven 8 is equipped with a feed inlet 3, and the top of the feed inlet 3 is equipped with a top cover 4. The top cover 4 is rotatably connected to the outer side of the feed inlet 3.

[0032] Plastic granules are fed into the drying chamber 8 through the feed inlet 3, and the top cover 4 is used to keep the inside of the drying chamber 8 clean and to provide protection.

[0033] Working principle: After the plastic granules are produced, they are fed into the drying chamber 8 through the feed inlet 3. The mixed plastic granules are stirred by the stirring mechanism at the corresponding position. The drive motor 11 drives the stirring shaft 13 to rotate, which in turn drives the first stirring blade 14 and the second stirring blade 16 at the corresponding position to rotate, thus stirring the plastic granules at the corresponding position. The second stirring blade 16 is located on the upper side of the screening plate 12, and its size is longer than that of the first stirring blade 14. During the stirring process, the second stirring blade 16 not only rotates the plastic granules, but also screens them. The screened plastic granules... The first stirring blade 14 drives the plastic particles to rotate, and during the stirring and screening process, the hot air blower 5 generates hot air to blow into the interior of the drying box 8, which can accelerate the drying speed. The second discharge pipe 7 is used to transport the screened plastic particles, and the first discharge pipe 6 is used to transport the plastic particles on the upper side of the screening plate 12. The two are not connected to each other, and each of them is equipped with a solenoid valve at its upper end to control the discharge of plastic particles. The plastic particles on the upper side of the screening plate 12 enter the first discharge pipe 6 through the connecting pipe 15. The remaining plastic particles can be pushed to the corresponding pipe by the stirring blade at the corresponding position.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic granule drying device with a screening structure, comprising a housing (1) and a support leg (2) mounted on the lower side of the housing (1), characterized in that: A sieve plate (12) is fixedly installed on the inner wall of the outer shell (1), and a drying box (8) is installed on the upper and lower sides of the sieve plate (12). A stirring mechanism is installed inside the outer shell (1), and the stirring mechanism passes through the sieve plate (12). A hot air blower (5) is installed on one side of the outer shell (1), and the hot air blower (5) is connected to the drying boxes (8) on the upper and lower sides of the sieve plate (12).

2. The plastic granule drying equipment with a screening structure according to claim 1, characterized in that: The stirring mechanism includes a stirring shaft (13), which is installed at the bottom of the outer shell (1). The upper end of the stirring shaft (13) penetrates the interior of the sieve plate (12), and a second stirring blade (16) is installed at the upper end of the stirring shaft (13). A first stirring blade (14) is installed at the lower end of the stirring shaft (13), and the first stirring blade (14) is located on the upper side of the outer shell (1).

3. The plastic granule drying equipment with a screening structure according to claim 2, characterized in that: The bottom of the outer shell (1) is fixedly mounted with a mounting bracket (10), and a drive motor (11) is installed inside the mounting bracket (10). The output end of the drive motor (11) is fixedly connected to the lower end of the stirring shaft (13).

4. The plastic granule drying equipment with a screening structure according to claim 1, characterized in that: The output end of the hot air blower (5) is equipped with a protective net (9), and the screening plate (12) is inserted inside the protective net (9).

5. A plastic granule drying device with a sieving structure according to claim 1, characterized in that: The bottom of the outer shell (1) is equipped with a second discharge pipe (7), and the second discharge pipe (7) is connected to the inner groove at the bottom of the outer shell (1). A connecting pipe (15) is installed on one side of the screening plate (12), and the lower end of the connecting pipe (15) penetrates the bottom of the outer shell (1). A first discharge pipe (6) is installed at the lower end of the connecting pipe (15), and the first discharge pipe (6) is located at the bottom of the outer shell (1).

6. The plastic granule drying equipment with a sieving structure according to claim 1, characterized in that: The upper end of the drying box (8) is equipped with a feed inlet (3), and the top of the feed inlet (3) is equipped with a top cover (4). The top cover (4) is rotatably connected to the outer side of the feed inlet (3).

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