Plastic particle drying device for production

Abstract

The utility model relates to the technical field of plastic particle drying, in particular to a plastic particle drying device for production, which comprises a first feeding pipe and a second feeding pipe which are communicated with each other, a feeding port is arranged at one end of the first feeding pipe far away from the second feeding pipe, and a heating mechanism is arranged on one side of the first feeding pipe close to the feeding port. The second feeding pipe is horizontally arranged, a first partition plate is fixedly installed on the upper portion of the interior of the second feeding pipe, the end, away from the first feeding pipe, of the second feeding pipe fixedly communicates with an outer shell, a negative pressure mechanism is arranged at the top end of the outer shell, a discharging port fixedly communicates with one side of the lower end of the outer shell, and a material distributing mechanism is arranged in the outer shell. By means of the layered design of negative-pressure high-temperature drying, gas-solid separation and directional conveying and discharging, continuous and efficient drying of plastic particles is achieved.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule drying technology, and in particular to a plastic granule drying device for production. Background Technology

[0002] Plastics are polymeric compounds formed by polymerizing monomers through addition or condensation reactions. Their composition and shape can be freely altered. They consist of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. The main component of plastics is resin. Resin refers to the polymeric compound before it is mixed with various additives. The basic properties of plastics are primarily determined by the nature of the resin, but additives also play an important role. Some plastics are essentially composed of synthetic resins, containing little or no additives, such as plexiglass and polystyrene.

[0003] Plastic granules used in the production of plastic products need to be thoroughly dried before processing to remove moisture and ensure the quality of the finished plastic products. However, the dryers currently used are time-consuming, inefficient, have slow gas flow rates and low utilization rates, resulting in insufficient drying and directly affecting product quality. Utility Model Content

[0004] The purpose of this invention is to solve the aforementioned problems existing in the prior art by proposing a plastic granule drying device for production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic granule drying device for production includes a first feeding pipe and a second feeding pipe connected to each other. The first feeding pipe has an inlet at the end away from the second feeding pipe, and a heating mechanism is provided on the side of the first feeding pipe near the inlet. The second feeding pipe is horizontally arranged, and a partition is fixedly installed on its upper part. The end of the second feeding pipe away from the first feeding pipe is fixedly connected to an outer shell. A negative pressure mechanism is provided at the top of the outer shell, and an outlet is fixedly connected on the lower side of the outer shell. A material distribution mechanism is provided inside the outer shell.

[0007] Preferably, the heating mechanism includes an air heater, the working end of which is internally connected to the feeding pipe.

[0008] Preferably, the feed tube has a spiral-shaped blade inside.

[0009] Preferably, the negative pressure mechanism includes an air extraction pipe connected to the outer shell, and a vacuum pump is connected to the end of the air extraction pipe away from the outer shell. The vacuum pump is used to continuously extract air to keep the feed pipe one and feed pipe two in a negative pressure state.

[0010] Preferably, the material distribution mechanism includes a second partition plate fixedly installed inside the upper part of the outer shell. The second partition plate is annular in design. A fan wheel is rotatably installed on the inner side of the second partition plate. A top plate is provided above the fan wheel. The top plate is integrally formed with the top wall of the outer shell and has multiple ventilation holes evenly distributed. A third partition plate with annular design is fixedly connected to the bottom of the top plate. The outer diameter of the third partition plate is smaller than the inner diameter of the fan wheel blades. The space above the first partition plate is connected to the space above the second partition plate.

[0011] Preferably, the wind turbine is composed of a partition plate four and a push plate. The partition plate four is fixedly sleeved on the outside of the wind turbine, and multiple push plates are provided and fixedly connected to the partition plate four at equal angles. The top of the partition plate four does not contact the partition plate two.

[0012] Preferably, the first partition, the fourth partition, and the push plate are all made of a perforated plate material.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] 1. This application creates a negative pressure environment using a vacuum pump, combined with high-temperature air supplied by an air heater, causing the moisture in the plastic granules to evaporate rapidly during the swirling process within the first feeding pipe, forming a mixture of water vapor and granules. The porous baffle in the second feeding pipe guides the water vapor and granules forward synchronously, utilizing negative pressure to accelerate moisture evaporation and extending the heating path of the granules through the spiral blades, thereby improving drying efficiency and laying the foundation for subsequent separation.

[0015] 2. The impeller structure within the outer casing of this application utilizes the combined action of porous baffle four and pusher plate. The impeller is driven to rotate by the airflow generated by the vacuum pump. While the pusher plate propels the particles, baffle four prevents particles from being drawn into the extraction pipe, ensuring efficient gas-solid separation. Baffle three guides the airflow and reduces the negative pressure near the discharge port, allowing the particles to escape the negative pressure under centrifugal force and be smoothly discharged from the discharge port, preventing particle residue or blockage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a plastic granule drying device for production proposed in this utility model.

[0017] Figure 2 This is a partial sectional isometric view of the feeding pipe in a plastic granule drying device for production according to the present invention.

[0018] Figure 3 Partial sectional isometric view of the outer shell of a plastic granule drying device for production proposed in this utility model. Figure 1 .

[0019] Figure 4 Partial sectional isometric view of the outer shell of a plastic granule drying device for production proposed in this utility model. Figure 2.

[0020] In the diagram: 1 Air heater, 2 Inlet, 3 Feed pipe one, 4 Feed pipe two, 5 Vacuum pump, 6 Outer shell, 7 Outlet, 31 Blade, 41 Partition one, 51 Extraction pipe, 61 Partition two, 62 Impeller, 63 Top plate, 64 Partition three, 621 Partition four, 622 Push plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1 to 4 A plastic granule drying device for production includes a first feeding pipe 3 and a second feeding pipe 4, which are connected to each other. The end of the first feeding pipe 3 away from the second feeding pipe 4 is provided with a feed inlet 2, and an air heater 1 is provided on the side of the first feeding pipe 3 near the feed inlet 2. The working end of the air heater 1 is connected to the inside of the first feeding pipe 3. The inside of the first feeding pipe 3 is provided with a spirally designed blade 31. The plastic granules are conveyed in the first feeding pipe 3 by rotating through the blade 31. Under negative pressure and high temperature, the moisture evaporates rapidly to form water vapor, which is conveyed to the second feeding pipe 4 together with the plastic granules.

[0023] The second feeding pipe 4 is horizontally arranged, and a partition 41 is fixedly installed on its upper part. The partition 41 is made of a porous plate material, which allows water vapor to enter the upper part of the second feeding pipe 4 through the partition 41, while plastic particles cannot pass through the partition 41. The end of the second feeding pipe 4 away from the first feeding pipe 3 is fixedly connected to the outer shell 6. The top of the outer shell 6 is fixedly connected to the suction pipe 51. The end of the suction pipe 51 away from the outer shell 6 is connected to the vacuum pump 5. The vacuum pump 5 is used to continuously pump air to keep the inside of the first feeding pipe 3 and the second feeding pipe 4 in a negative pressure state. The lower end of the outer shell 6 is fixedly connected to the outlet 7.

[0024] A second partition 61 is fixedly installed inside the upper part of the outer shell 6. The second partition 61 is ring-shaped. A fan wheel 62 is rotatably installed inside the second partition 61. A top plate 63 is provided above the fan wheel 62. The top plate 63 is integrally formed with the top wall of the outer shell 6 and has multiple vent holes evenly distributed. A third partition 64 with a ring-shaped design is fixedly connected to the bottom of the top plate 63. The outer diameter of the third partition 64 is smaller than the inner diameter of the fan blade of the fan wheel 62. The space above the first partition 41 is connected to the space above the second partition 61, so that the water vapor entering the space above the first partition 41 can enter the space above the second partition 61.

[0025] The impeller 62 is composed of a partition plate 621 and a push plate 622. The partition plate 621 is fixedly sleeved on the outside of the impeller 62. Multiple push plates 622 are provided and are fixedly connected to the partition plate 621 at equal angles. The top of the partition plate 621 does not contact the partition plate 61. The partition plate 621 and the push plate 622 are both made of perforated plate material.

[0026] In operation, the vacuum pump 5 continuously pumps air to create a negative pressure inside the first feeding pipe 3 and the second feeding pipe 4. Moist plastic granules are drawn into the first feeding pipe 3 through the inlet 2. The air heater 1 continuously supplies heated air. Spiral blades 31 are welded inside the first feeding pipe 3, allowing the plastic granules to swirl and be transported within it. Under the negative pressure and high temperature, moisture rapidly evaporates, forming water vapor which is then transported to the second feeding pipe 4 along with the plastic granules. A perforated plate 61 is welded to the upper part of the second feeding pipe 4. When the mixture of plastic granules and water vapor enters the second feeding pipe 4, the water vapor rises and enters the first plate 41, moving forward with the plastic granules. The bottom of the second plate 61 is at the same height as the first plate 41. After entering the outer casing 6, the water vapor... The plastic particles quickly pass through the top plate 63 into the exhaust pipe 51 and are drawn away by the vacuum pump 5. The outer shell 6 is equipped with a fan wheel 62, which rotates at a constant speed with the air generated by the vacuum pump 5. The plastic particles enter the outer shell 6 and are pushed by the push plate 622. The fourth partition 621 prevents the plastic particles from being sucked away. As the fan wheel 62 rotates, the push plate 622 pushes the plastic particles until they reach the discharge port 7. The third partition 64 is welded to the bottom of the top plate 63. The outer diameter is smaller than the inner diameter of the fan blades of the fan wheel 62. The third partition 64 guides the airflow while ensuring that the negative pressure near the discharge port 7 is extremely weak. Under the centrifugal force of the push plate 622, the plastic particles are thrown to the inner wall of the outer shell 6, freed from the constraint of the negative pressure, and fall from the discharge port 7 to complete the drying process. The whole process is continuous and fast and does not affect the production cycle.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for drying plastic particles produced, comprising a first feeding tube (3) and a second feeding tube (4) in communication, characterized in that, The feeding pipe one (3) is provided with a feeding port (2) at one end away from the feeding pipe two (4), and the feeding pipe one (3) is provided with a heating mechanism on the side close to the feeding port (2), the feeding pipe two (4) is horizontally arranged, and a partition plate one (41) is fixedly installed inside the upper portion of the feeding pipe two (4), the feeding pipe two (4) is fixedly communicated with an outer shell (6) at one end away from the feeding pipe one (3), the outer shell (6) is provided with a negative pressure mechanism at the top end, one side of the lower end of the outer shell (6) is fixedly communicated with a discharging port (7), and the outer shell (6) is provided with a distribution mechanism.

2. The plastic granule drying apparatus for production according to claim 1, characterized by The heating mechanism comprises an air heater (1), and the working end of the air heater (1) is connected with the inside of the feeding pipe one (3).

3. The plastic granule drying apparatus for production according to claim 2, characterized by The feeding pipe one (3) is provided with a blade (31) designed in a spiral shape.

4. The plastic granule drying apparatus for production according to claim 1, wherein The negative pressure mechanism comprises an air extraction pipe (51) communicated with the outer shell (6), one end of the air extraction pipe (51) away from the outer shell (6) is connected with a vacuum pump (5), and the vacuum pump (5) is used for continuously extracting air to make the feeding pipe one (3) and the feeding pipe two (4) in a negative pressure state.

5. The plastic granule drying apparatus for production according to claim 1, wherein The distribution mechanism comprises a partition plate two (61) fixedly installed on the inside of the upper portion of the outer shell (6), the partition plate two (61) is designed in a ring shape, a wind wheel (62) is rotatably installed on the inner side of the partition plate two (61), a top plate (63) is arranged above the wind wheel (62), the top plate (63) is integrally formed with the top wall of the outer shell (6) and is uniformly provided with a plurality of air holes, a partition plate three (64) designed in a ring shape is fixedly connected to the bottom of the top plate (63), the outer diameter of the partition plate three (64) is smaller than the inner diameter of the fan blade of the wind wheel (62), and the space above the partition plate one (41) is communicated with the space above the partition plate two (61).

6. The plastic particle drying apparatus for production according to claim 5, wherein The wind wheel (62) is composed of a partition plate four (621) and a push plate (622), the partition plate four (621) is fixedly sleeved on the outer side of the wind wheel (62), the push plate (622) is provided with a plurality of push plates, and the push plates are fixedly connected on the partition plate four (621) at equal angles, and the top end of the partition plate four (621) is not in contact with the partition plate two (61).

7. The plastic particle drying apparatus for production according to claim 6, wherein The partition plate one (41), the partition plate four (621) and the push plate (622) are all made of a material of a porous plate.

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