Self-cooling plastic particle delivery conduit

Abstract

This utility model discloses a self-cooling conveying pipe for plastic particles, specifically relating to the field of conveying pipe technology. It includes an insulated outer pipe and a heat-conducting inner pipe located inside the insulated outer pipe. The outer insulated pipe is coated with a protective coating, and a first spiral plate is fixedly connected to the inner cavity of the heat-conducting inner pipe. This utility model firstly uses the first spiral plate to rotate and move the plastic particles passing through the middle of the insulated outer pipe, reducing the particle throughput and improving cooling efficiency. Coolant is injected into the interior of the connecting ring pipe through a connector and flows between the insulated outer pipe and the heat-conducting inner pipe through a connecting hole, flowing towards the other end of the insulated outer pipe. This facilitates cooling of the plastic particles inside the heat-conducting inner pipe, achieving automatic cooling during the conveying process. This improves cooling efficiency while reducing floor space and avoids particle loss and contamination caused by multiple transfers, thus improving the conveying and cooling effect.

Description

Technical Field

[0001] This utility model relates to the field of conveying pipeline technology, and more specifically, to a self-cooling conveying pipeline for plastic particles. Background Technology

[0002] In the plastics processing industry, the conveying of plastic particles is a crucial step in the production process. After undergoing processes such as melting and granulation, the plastic particles are typically at a high temperature. If they were to directly enter subsequent processing stages, it could affect product quality or even cause equipment malfunctions. Therefore, cooling the plastic particles is essential.

[0003] Currently, the common method for conveying plastic particles is through ordinary conveying pipes, while cooling is usually done using separate cooling equipment, such as cooling water tanks or air-cooled devices. On the one hand, separating cooling and conveying increases equipment costs and floor space. On the other hand, separate cooling and conveying processes lead to low production efficiency. After the plastic particles are cooled in the cooling equipment, they need to be transferred back to the conveying pipe. This process is not only time-consuming, but may also cause particle loss and contamination due to multiple transfers. Therefore, a self-cooling conveying pipe for plastic particles is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a self-cooling plastic particle conveying pipe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-cooling plastic particle conveying pipe, comprising an insulated outer pipe and a heat-conducting inner pipe located inside the insulated outer pipe. The heat-conducting inner pipe can dissipate heat from the plastic particles inside, facilitating heat dissipation and cooling during plastic particle conveying. The outer surface of the insulated outer pipe is coated with a protective coating, which protects the outer surface of the insulated outer pipe and provides heat insulation and cooling. A first spiral plate is fixedly connected to the inner cavity of the heat-conducting inner pipe, which allows the plastic particles passing through the middle of the insulated outer pipe to rotate and move, improving cooling efficiency. Multiple second spiral plates are fixedly connected between the insulated outer pipe and the heat-conducting inner pipe, which can rotate the flow direction of the coolant in the cavity between the insulated outer pipe and the heat-conducting inner pipe, improving the heat exchange and cooling effect.

[0006] The cavity between the heat-insulating outer tube and the heat-conducting inner tube is symmetrically and fixedly connected to both ends with sealing rings. The sealing rings seal both ends of the cavity between the heat-insulating outer tube and the heat-conducting inner tube. One end of the sealing ring is fixedly connected to a connecting pipe, which facilitates connection to the output pipe of the plastic particles. Both ends of the heat-insulating outer tube are fixedly fitted with connecting rings. Connectors are fixedly connected to the outside of the connecting rings. The inner cavity of the connecting rings has a connecting hole. Coolant is injected into the connecting rings through the connecting holes and flows between the heat-insulating outer tube and the heat-conducting inner tube to the other end of the heat-insulating outer tube, which facilitates cooling of the plastic particles inside the heat-conducting inner tube and realizes automatic cooling during the transportation of plastic particles.

[0007] Preferably, the first spiral plate divides the inner cavity of the heat-conducting inner tube into two spiral cavities. The inner cavity of the heat-conducting inner tube is connected to the inner cavity of the connecting pipe, which allows the plastic particles passing through the middle of the heat-conducting inner tube to rotate while being transported. This causes them to adhere to the wall of the heat-conducting inner tube through centrifugal force, resulting in better cooling and improved performance.

[0008] Preferably, there are three second spiral plates, and the three second spiral plates are arranged in an array between the heat-conducting inner tube and the heat-insulating outer tube, dividing the cavity between the heat-insulating outer tube and the heat-conducting inner tube into three spiral cavities. The second spiral plates can make the coolant entering the spiral cavity between the heat-insulating outer tube and the heat-conducting inner tube flow in a spiral manner, improving the uniformity and stability of cooling and improving the performance.

[0009] Preferably, the width of the sealing ring corresponds to the cavity between the heat-conducting inner tube and the heat-insulating outer tube, and the outer surface of the connecting pipe is provided with a threaded groove. The sealing ring fixes both ends of the cavity between the heat-insulating outer tube and the heat-conducting inner tube, and the connecting pipe facilitates connection with external pipes.

[0010] Preferably, there are three connecting holes, which correspond to the three spiral cavities between the heat-insulating outer tube and the heat-conducting inner tube, respectively.

[0011] Preferably, the inner cavity of the connecting ring tube is connected to the spiral cavity between the heat-insulating outer tube and the heat-conducting inner tube through a connecting hole. The connecting hole allows the liquid entering the inside of the connecting ring tube to enter the cavity between the heat-insulating outer tube and the heat-conducting inner tube, which facilitates the cooling of the plastic particles in the middle of the heat-conducting inner tube.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This invention firstly uses a first spiral plate to rotate and move the plastic particles passing through the middle of the heat-insulating outer tube, reducing the throughput of the plastic particles and improving the cooling efficiency. Coolant is injected into the interior of the connecting ring tube through the connector and enters between the heat-insulating outer tube and the heat-conducting inner tube through the connecting hole, flowing to the other end of the heat-insulating outer tube. This facilitates the cooling of the plastic particles inside the heat-conducting inner tube, realizing automatic cooling during the conveying of plastic particles. This improves the cooling efficiency while reducing the floor space, and avoids particle loss and contamination caused by multiple transfers, thus improving the conveying and cooling effect.

[0014] This utility model also protects the outer surface of the heat-insulating outer tube with a protective coating, and the heat-insulating outer tube plays a role in heat insulation and cooling. The second spiral plate can rotate the flow direction of the coolant in the cavity between the heat-insulating outer tube and the heat-conducting inner tube, thereby improving the uniformity of heat exchange and cooling effect. The connecting hole allows the liquid inside the connecting ring tube to enter the cavity between the heat-insulating outer tube and the heat-conducting inner tube, which facilitates the cooling of the plastic particles in the middle of the heat-conducting inner tube.

[0015] In summary, through the interaction of the above-mentioned multiple functions, automatic cooling can be easily achieved during the conveying of plastic particles, improving cooling efficiency while reducing the floor space required. Furthermore, it can avoid particle loss and contamination caused by multiple transfers, thereby improving the conveying and cooling effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the heat-insulating outer tube of this utility model.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model.

[0019] Figure 4 This is a side view cross-sectional structural diagram of the present invention.

[0020] The attached diagram is labeled as follows: 1. Insulating outer tube; 2. Heat-conducting inner tube; 3. Protective coating; 4. First spiral plate; 5. Second spiral plate; 6. Sealing ring; 7. Connecting pipe; 8. Connecting ring pipe; 9. Connector; 10. Connecting hole. 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. 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.

[0022] As attached Figure 1-4 The illustrated self-cooling plastic particle conveying pipe includes an insulated outer tube 1 and a heat-conducting inner tube 2 located inside the insulated outer tube 1. The heat-conducting inner tube 2 can dissipate heat from the plastic particles inside, facilitating heat dissipation and cooling during plastic particle conveying. The outer surface of the insulated outer tube 1 is coated with a protective coating 3, which protects the outer surface of the insulated outer tube 1 and provides heat insulation and cooling. A first spiral plate 4 is fixedly connected to the inner cavity of the heat-conducting inner tube 2. The first spiral plate 4 can cause the plastic particles passing through the middle of the insulated outer tube 1 to rotate and move, improving the cooling efficiency. Multiple second spiral plates 5 are fixedly connected between the insulated outer tube 1 and the heat-conducting inner tube 2. The second spiral plates 5 can rotate the flow direction of the coolant in the cavity between the insulated outer tube 1 and the heat-conducting inner tube 2, improving the heat exchange and cooling effect.

[0023] A sealing ring 6 is symmetrically fixedly connected to both ends of the cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2. The sealing ring 6 seals both ends of the cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2. A connecting pipe 7 is fixedly connected to one end of the sealing ring 6, which facilitates connection to the output pipe of the plastic particles. A connecting ring pipe 8 is fixedly sleeved on both ends of the heat-insulating outer tube 1. A connector 9 is fixedly connected to the outside of the connecting ring pipe 8. A connecting hole 10 is opened in the inner cavity of the connecting ring pipe 8. Coolant is injected into the inside of the connecting ring pipe 8 through the connector 9 and enters between the heat-insulating outer tube 1 and the heat-conducting inner tube 2 through the connecting hole 10, flowing to the other end of the heat-insulating outer tube 1. This facilitates the cooling of the plastic particles inside the heat-conducting inner tube 2, realizing automatic cooling during the transportation of plastic particles.

[0024] As attached Figure 1-4As shown, the first spiral plate 4 divides the inner cavity of the heat-conducting inner tube 2 into two spiral cavities. The inner cavity of the heat-conducting inner tube 2 is connected to the inner cavity of the connecting pipe 7. There are three second spiral plates 5, which are arrayed between the heat-conducting inner tube 2 and the heat-insulating outer tube 1, dividing the cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2 into three spiral cavities. The width of the sealing ring 6 corresponds to the cavity between the heat-conducting inner tube 2 and the heat-insulating outer tube 1. The outer surface of the connecting pipe 7 is provided with a threaded groove. There are three connecting holes 10, which correspond to the three spiral cavities between the heat-insulating outer tube 1 and the heat-conducting inner tube 2, respectively. The inner cavity of the connecting ring pipe 8 is connected to the spiral cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2 through the connecting holes 10. The passage allows the plastic particles passing through the middle of the heat-conducting inner tube 2 to rotate during transport, thereby adhering to the wall of the heat-conducting inner tube 2 through centrifugal force, which can better cool down and improve the performance. The second spiral plate 5 allows the coolant inside the spiral cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2 to flow spirally, improving the uniformity and stability of cooling and improving the performance. The sealing ring 6 fixes the two ends of the cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2. The connecting pipe 7 facilitates connection to external pipes. The connecting hole 10 allows the liquid inside the connecting ring pipe 8 to enter the cavity between the heat-insulating outer tube 1 and the heat-conducting inner tube 2, which facilitates the cooling of the plastic particles in the middle of the heat-conducting inner tube 2.

[0025] The working principle of this utility model is as follows: When in use, the plastic particle output pipe is connected to the connecting pipe 7, the coolant pipe is connected to the connector 9 through the output end of the liquid pump, and the coolant is input into the interior of the connecting ring pipe 8 through the liquid pump. The connector 9 at one end of the other connecting ring pipe 8 is connected to the recycling box.

[0026] Start the liquid pump to inject coolant into the inside of the connecting ring pipe 8, so that the coolant can enter between the heat-conducting inner pipe 2 and the heat-insulating outer pipe 1, and flow spirally to the other end, thereby entering through the inside of the connecting ring pipe 8 at the other end;

[0027] Simultaneously, plastic particles are fed into the interior of the heat-conducting inner tube 2 by a fan. Guided by the first spiral plate 4 inside the heat-conducting inner tube 2, the plastic particles move to the other end inside the heat-conducting inner tube 2. At this time, the first spiral plate 4 reduces the movement speed of the plastic particles, and the coolant outside the heat-conducting inner tube 2 can absorb the heat of the plastic particles in the middle of the heat-conducting inner tube 2 to achieve heat exchange and cooling. This achieves automatic cooling of the plastic particles during transportation and improves the performance.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-cooling conveying pipe for plastic particles, characterized in that: It includes an insulating outer tube (1) and a heat-conducting inner tube (2) located inside the insulating outer tube (1). The outer side of the insulating outer tube (1) is coated with a protective coating (3). The inner cavity of the heat-conducting inner tube (2) is fixedly connected with a first spiral plate (4). Multiple second spiral plates (5) are fixedly connected between the insulating outer tube (1) and the heat-conducting inner tube (2). The cavity between the heat-insulating outer tube (1) and the heat-conducting inner tube (2) is symmetrically fixed with sealing rings (6) at both ends. One end of the sealing ring (6) is fixedly connected with a connecting pipe (7). Both ends of the heat-insulating outer tube (1) are fixedly fitted with connecting ring pipes (8). The connecting ring pipes (8) are fixedly connected with connectors (9). The inner cavity of the connecting ring pipes (8) is provided with connecting holes (10).

2. The self-cooling conveying pipe for plastic particles according to claim 1, characterized in that: The first spiral plate (4) divides the inner cavity of the heat-conducting inner tube (2) into two spiral cavities, and the inner cavity of the heat-conducting inner tube (2) is connected to the inner cavity of the connecting pipe (7).

3. The self-cooling conveying pipe for plastic particles according to claim 1, characterized in that: The number of the second spiral plates (5) is three. The three second spiral plates (5) are arranged in an array between the heat-conducting inner tube (2) and the heat-insulating outer tube (1) and divide the cavity between the heat-insulating outer tube (1) and the heat-conducting inner tube (2) into three spiral cavities.

4. The self-cooling conveying pipe for plastic particles according to claim 1, characterized in that: The width of the sealing ring (6) corresponds to the cavity between the heat-conducting inner tube (2) and the heat-insulating outer tube (1), and the outer surface of the connecting tube (7) is provided with a threaded groove.

5. The self-cooling conveying pipe for plastic particles according to claim 1, characterized in that: The number of the connecting holes (10) is three, and the three connecting holes (10) correspond to the three spiral cavities between the heat-insulating outer tube (1) and the heat-conducting inner tube (2).

6. The self-cooling conveying pipe for plastic particles according to claim 1, characterized in that: The inner cavity of the connecting ring pipe (8) is connected to the spiral cavity between the heat-insulating outer pipe (1) and the heat-conducting inner pipe (2) through the connecting hole (10).

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