A circulating plastic strip air cooling component

Abstract

The utility model relates to the technical field of masterbatch processing equipment, in particular to a circulating plastic strip air cooling component, including a tube body, one end of the tube body close to the extruder is immersed in the liquid of the cooling water tank, one end of the tube body close to the traction component is equipped with a sealing ring, the inner wall of the sealing ring is against the outer wall of the plastic strip, the end of the tube body close to the cooling water tank is provided with a first air port, and the end close to the traction component is provided with a second air port, the first air port is located above the liquid level of the cooling water tank, and an airflow circulation component capable of driving airflow movement is connected and installed between the first air port and the second air port. The airflow for cooling the plastic strip in this device only circulates between the tube body and the airflow circulation component, and is not emitted into the air environment, which can greatly reduce the pollution to the air environment.

Description

Technical Field

[0001] The utility model relates to the technical field of masterbatch processing equipment, in particular to a circulating plastic strip air cooling component. Background Art

[0002] Plastic masterbatch generally needs to go through the following production steps: raw material mixing, heating, extrusion, cooling, and pelletizing. The traditional cooling method is cooling through a water tank. An extrusion device is set at one end of the water tank, a traction device is set at the other end, and a pelletizing device is set on the rear side of the traction. Since the entire cooling line is water-cooled, the surface of the plastic strip will contain moisture, affecting the subsequent pelletizing and storage. The traditional way to solve this problem is to set a fan at the position of the traction machine and the pelletizer to remove moisture from the surface of the plastic strip by air drying. This method requires an additional air-drying station, which not only extends the plant area required for the entire process step, but also has a poor moisture removal effect.

[0003] The applicant previously disclosed a cooling device for the production of plastic modified masterbatch, with the publication (announcement) number: CN217047090U. The device first passes through a water cooling zone for water cooling, first undergoes preliminary cooling and molding, and then enters an air cooling pipe in an air cooling zone. Since a sealing plug is installed at one end of the air cooling pipe close to the traction device, the air flow blown out by the blower is blown out to the water cooling zone in the air cooling pipe. While the plastic strip is being air-cooled in the air cooling pipe, the liquid on the surface of the plastic strip can be dried, which is convenient for subsequent pelletizing and storage. The plastic strip is cooled and molded under the combined action of water cooling and air cooling, and the surface liquid is dried while being air-cooled.

[0004] However, there are still some problems when using this device. Since the end of the air-cooling pipe close to the extruder is open, the air flow blown by the blower is finally ejected from the open end of the air-cooling pipe, passes through the liquid and enters the air. The ejected air flow contains a strong smell of plastic, which makes the air in the factory very unpleasant. On the other hand, the ejected air flow contains a large amount of volatile organic compounds, which seriously affect the air environment.

[0005] The above problems are widely present in air flow refrigeration devices in masterbatch manufacturing, such as a multi-stage air cooling device for tube masterbatch production disclosed in Publication (Announcement) No. CN217916245U, and a feeding device for masterbatch production disclosed in Publication (Announcement) No. CN216299478U. When the airflow passes through the plastic strips, it is directly blown into the air, causing pollution to the air environment. Utility Model Content

[0006] The utility model aims to solve the problem that the plastic strips extruded by the extruder prepared by masterbatch in the prior art are cooled by air, and the airflow is directly blown into the air when passing through the plastic strips, which pollutes the air environment, and proposes a circulating plastic strip air cooling component.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A circulating plastic strip air cooling component comprises a tube body, wherein one end of the tube body close to an extruder is immersed in the liquid of a cooling water tank, and one end of the tube body close to a traction component is provided with a sealing ring, and the inner wall of the sealing ring abuts against the outer peripheral wall of the plastic strip. The end of the tube body close to the cooling water tank is provided with a first air port, and the end of the tube body close to the traction component is provided with a second air port, the first air port is located above the liquid level of the cooling water tank, and an airflow circulation component capable of driving airflow movement is installed between the first air port and the second air port.

[0009] The tube body is a straight tube arranged obliquely, the lower end of the tube body is inserted into the liquid in the cooling water tank, and the higher end of the tube body is arranged close to the traction component.

[0010] The pipe body comprises a straight pipe part and a curved pipe part which are connected to each other. The straight pipe part is arranged horizontally, and the curved pipe part is located at one end of the straight pipe part away from the traction assembly. The end of the curved pipe part is inserted into the liquid of the cooling water tank.

[0011] The second air port is an air flow inlet end, and the first air port is an air flow outlet end.

[0012] The airflow circulation component comprises a circulation fan, the exhaust end of the circulation fan is connected to the second air port through a pipeline, and the air inlet end of the circulation fan is connected to the first air port through a pipeline.

[0013] The airflow circulation component includes a gas cooling device, which is connected and installed between the air inlet end of the circulation fan and the first air port. The air inlet of the gas cooling device is connected to the first air port, and the air outlet of the gas cooling device is connected to the air inlet end of the circulation fan.

[0014] The utility model proposes a circulating plastic strip air cooling component, which has the beneficial effect that the airflow for cooling the plastic strip in the device only circulates between the tube body and the airflow circulation component and is not emitted into the air environment, which can greatly reduce the pollution to the air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the inclined arrangement structure of the tube body of the utility model.

[0017] In the figure: a cooling water tank 1, a curved pipe portion 2, a first gas port 3, a gas cooling device 4, a circulating fan 5, a second gas port 6, a sealing ring 7, a straight pipe portion 8, and a pipe body 9. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 2 A circulating plastic strip air cooling component comprises a tube body 9, an end of the tube body 9 close to the extruder is immersed in the liquid of the cooling water tank 1, a sealing ring 7, preferably an O-ring, is installed at the end of the tube body 9 close to the traction component, the inner wall of the sealing ring 7 is against the outer wall of the plastic strip, a first air port 3 is provided at the end of the tube body 9 close to the cooling water tank 1, and a second air port 6 is provided at the end close to the traction component, the first air port 3 is located above the liquid level of the cooling water tank 1, and an air flow circulation component capable of driving air flow movement is installed between the first air port 3 and the second air port 6.

[0020] When working, the plastic strip is initially cooled by the liquid in the cooling water tank 1, and its surface is initially shaped. Then the plastic strip passes through the tube body 9 and is pulled by the pulling assembly. When the plastic strip passes through the tube body 9, the airflow circulation assembly drives the airflow to circulate between the first air port 3, the second air port 6, and the inside of the tube body 9, and the plastic strip is cooled and formed by the flowing airflow. The airflow used by this device to cool the plastic strip only circulates between the tube body 9 and the airflow circulation assembly and is not emitted into the air environment, which can greatly reduce the pollution to the air environment.

[0021] The device seals the end of the tube body 9 through the sealing ring 7, that is, the outer wall of the sealing ring 7 abuts against the inner wall of the tube body 9, and the inner wall of the sealing ring 7 abuts against the outer wall of the plastic strip. The plastic strip passes through the O-shaped hole of the sealing ring 7 to prevent airflow from leaking from the end of the tube body 9. The device seals the front end of the tube body 9 with the liquid of the cooling water tank 1. On the one hand, the plastic strip can be transitioned from the cooling water tank 1 to the tube body 9, and on the other hand, the plastic strip can be prevented from being squeezed. Because if the front end of the tube body 9 is also sealed by the sealing ring 7, in order to ensure the sealing, the sealing ring 7 needs to elastically squeeze the plastic strip. The inside of the plastic strip has not been completely solidified in the early stage. If it is squeezed by the sealing ring 7, the deformation of the plastic strip will be very serious, and it is easy to be broken during the traction process of the traction component. Therefore, the front end of the tube body 9 is sealed with the liquid of the cooling water tank 1 and the end is sealed with the sealing ring 7, which can not only prevent the deformation of the plastic strip, but also allow the gas to circulate between the tube body 9, the first air port 3, the second air port 6, and the air circulation component to prevent the airflow from entering the air environment.

[0022] refer to Figure 2As an implementation mode, the tube body 9 is a straight tube arranged at an angle, the lower end of the tube body 9 is inserted into the liquid in the cooling water tank 1, and the higher end of the tube body 9 is arranged close to the traction component. This method can achieve the above-mentioned effect of the present application, but one end of the tube body 9 needs to be lifted, which is inconvenient to implement.

[0023] refer to Figure 1 As an embodiment, the pipe body 9 includes a straight pipe portion 8 and a curved pipe portion 2 which are connected to each other. The straight pipe portion 8 is horizontally arranged, and the curved pipe portion 2 is located at one end of the straight pipe portion 8 away from the traction assembly. The end of the curved pipe portion 2 is inserted into the liquid in the cooling water tank 1. The curved pipe portion 2 is used as a transition pipe to effectively prevent the straight pipe portion 8 from being lifted too high.

[0024] As an implementation mode, the second air port 6 is the air flow inlet end, and the first air port 3 is the air flow outlet end; specifically, the air flow circulation component includes a circulating fan 5, the exhaust end of the circulating fan 5 is connected with the second air port 6 through a pipeline, and the air inlet end of the circulating fan 5 is connected with the first air port 3 through a pipeline, and the circulating fan 5 drives the air flow to circulate in the pipe body 9 and the first air port 3 and the second air port 6.

[0025] In order to achieve a better cooling effect, the air flow circulation component includes a gas cooling device 4, which is connected and installed between the air inlet end of the circulating fan 5 and the first air port 3, the air inlet of the gas cooling device 4 is connected to the first air port 3, and the air outlet of the gas cooling device 4 is connected to the air inlet end of the circulating fan 5.

[0026] The airflow of the circulating fan 5 enters the tube body 9 through the second air port 6. Once the tube body 9 is blocked by the sealing ring 7, the airflow flows to the other end of the tube body 9. Since the other end is blocked by the liquid in the cooling water tank 1, the airflow will choose to flow out from the first air port 3 with smaller resistance, and then flow back to the air inlet end of the circulating fan 5 after being cooled by the gas cooling device 4.

[0027] The function of the gas cooling device 4 is to cool the hot air flow. As long as the purpose of cooling the closed-cycle air flow can be achieved, the specific structure can adopt the existing technology.

[0028] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technical solution, concept, and design obtained by equivalent replacement or change based on the technical solution and utility model concept of the utility model by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model.

Claims

1. A circulating plastic strip air cooling assembly, characterized in that: The invention comprises a tube body (9), wherein one end of the tube body (9) close to the extruder is immersed in the liquid of the cooling water tank (1), and one end of the tube body (9) close to the traction component is installed with a sealing ring (7), and the inner wall of the sealing ring (7) is against the outer peripheral wall of the plastic strip. The end of the tube body (9) close to the cooling water tank (1) is provided with a first air port (3), and the end close to the traction component is provided with a second air port (6), the first air port (3) is located above the liquid level of the cooling water tank (1), and an air circulation component capable of driving air flow movement is installed between the first air port (3) and the second air port (6).

2. A circulating plastic strip air cooling assembly according to claim 1, characterized in that: The tube body (9) is a straight tube arranged at an angle, the lower end of the tube body (9) is inserted into the liquid in the cooling water tank (1), and the higher end of the tube body (9) is arranged close to the traction component.

3. A circulating plastic strip air cooling assembly according to claim 1, characterized in that: The pipe body (9) comprises a straight pipe portion (8) and a curved pipe portion (2) which are connected to each other. The straight pipe portion (8) is arranged horizontally. The curved pipe portion (2) is located at one end of the straight pipe portion (8) away from the traction assembly. The end of the curved pipe portion (2) is inserted into the liquid in the cooling water tank (1).

4. A circulating plastic strip air cooling assembly according to any one of claims 1 to 3, characterized in that: The second air port (6) is an airflow inlet end, and the first air port (3) is an airflow outlet end.

5. A circulating plastic strip air cooling assembly according to claim 4, characterized in that: The air circulation component comprises a circulation fan (5), the exhaust end of the circulation fan (5) is connected to the second air port (6) through a pipeline, and the intake end of the circulation fan (5) is connected to the first air port (3) through a pipeline.

6. A circulating plastic strip air cooling assembly according to claim 5, characterized in that: The air circulation component comprises a gas cooling device (4), which is connected and installed between the air inlet end of the circulation fan (5) and the first air port (3), the air inlet of the gas cooling device (4) is connected to the first air port (3), and the air outlet of the gas cooling device (4) is connected to the air inlet end of the circulation fan (5).

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