Heating system for corrosion-resistant treatment of regenerated polyethylene pipe

Abstract

The utility model provides a heating system for corrosion-resistant treatment of regenerated polyethylene pipes, which relates to the technical field of regenerated polyethylene pipe processing and comprises a mixer, a double-helix mixer is arranged at the bottom of the mixer, a discharge port is arranged on one side of the double-helix mixer, a heating furnace body is arranged at the other end of the double-helix mixer, and the heating furnace body is connected with the double-helix mixer. A temperature control assembly is arranged in the heating furnace body, a material conveying pipe is arranged on one side of the heating furnace body, a valve is arranged at the position of the material conveying pipe, the other end of the material conveying pipe is connected with a single-screw film blowing machine extrusion system, a conveying pipe is arranged on one side of the single-screw film blowing machine extrusion system, a cooling system is arranged on one side of the conveying pipe, and the single-screw film blowing machine extrusion system is arranged on the other side of the conveying pipe. A winding roller is arranged on the side, away from the conveying pipe, of the cooling system. The device solves the problems of uneven dispersion, insufficient binding force and inaccurate performance evaluation in the conventional method for improving the performance of the regenerated polyethylene pipe by adding a corrosion-resistant method in the production of the regenerated polyethylene pipe.

Description

Technical Field

[0001] This utility model belongs to the field of recycled polyethylene pipe processing technology, and more specifically, it relates to a heating system for corrosion-resistant treatment of recycled polyethylene pipes. Background Technology

[0002] With the rapid development of modern industry and the improvement of people's living standards, the consumption of plastic products is increasing day by day. Polyethylene, as a common plastic material, has good physical properties and chemical stability, and is widely used in packaging, agriculture, construction and other fields. However, if polyethylene products used in large quantities are not properly recycled after their service life, they will cause serious environmental pollution. In order to achieve resource recycling and environmental protection, the recycling and reuse of polyethylene has become a current research hotspot. Among the recycling methods of polyethylene, making it into pipes is an important application. Recycled polyethylene pipes not only have the advantages of low cost and environmental protection, but also have high application value in some non-high pressure, non-toxic media transportation fields. However, due to the complex sources of waste polyethylene, which may contain various impurities, additives and degradation products, the quality and performance of recycled polyethylene pipes fluctuate greatly. In particular, its corrosion resistance often fails to meet the requirements of practical applications.

[0003] Based on the above, the inventors have discovered the following problem: the current market supply of recycled polyethylene pipes that meet high standards is relatively insufficient. This is partly due to limitations in existing production technology and equipment, and partly reflects the urgent need to develop an advanced heating device to improve the corrosion resistance of recycled polyethylene pipes and meet market demand for high-quality, environmentally friendly pipes. To improve the corrosion resistance and product quality of recycled polyethylene pipes, a novel heating device needs to be designed that can precisely control the heating temperature, ensure uniform heating of the material, and work in conjunction with other related equipment to achieve comprehensive processing of recycled polyethylene pipes.

[0004] Currently, the main method for improving the corrosion resistance of recycled polyethylene pipes is by adding corrosion repellents. This method has the following limitations: 1. Uneven dispersion: Conventional mixing equipment struggles to evenly disperse the corrosion repellent in the recycled polyethylene, leading to significant localized differences in corrosion resistance and affecting the overall service life. 2. Insufficient bonding: Due to the altered molecular structure and properties of recycled polyethylene, the bonding force between the recycled polyethylene and the newly added corrosion repellent is weak. This makes the additive prone to migration and loss during use, thus reducing its corrosion resistance. 3. Inaccurate performance evaluation: The lack of effective performance testing methods makes it difficult to accurately assess the actual corrosion resistance of the pipes after adding the corrosion repellent. Existing testing methods often only provide simple qualitative analysis of the pipes and cannot comprehensively reflect their service life and corrosion status under complex environments.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a heating system for corrosion-resistant treatment of recycled polyethylene pipes, in order to achieve a more practical purpose. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a heating system for corrosion-resistant treatment of recycled polyethylene pipes. This system addresses the issue that current methods for improving the performance of recycled polyethylene pipes by adding corrosion-resistant materials suffer from uneven dispersion, insufficient bonding strength, and inaccurate performance evaluation.

[0007] The purpose and effect of this utility model's heating system for corrosion-resistant treatment of recycled polyethylene pipes are achieved by the following specific technical means:

[0008] A heating system for corrosion-resistant treatment of recycled polyethylene pipes includes a mixer with a twin-screw mixer at its bottom. A discharge port is located on one side of the twin-screw mixer, and a heating furnace is located at the other end. A temperature control component is located inside the heating furnace. A conveying pipe with a valve is located on one side of the heating furnace. The other end of the conveying pipe is connected to a single-screw blown film extrusion system. A transport pipe is located on one side of the single-screw blown film extrusion system, and a cooling system is located on one side of the transport pipe. A take-up roller is located on the side of the cooling system away from the transport pipe, and a high-speed mixer is located on one side of the cooling system. A sample cutter is located on one side of the high-speed mixer.

[0009] Furthermore, the heating furnace body is configured as a double layer, and the interior of the heating furnace body is provided with a heating chamber, and the interior of the heating chamber is provided with a heating resistance wire.

[0010] Furthermore, the heating furnace body is made of a material that is resistant to high temperatures and has a low thermal conductivity.

[0011] Furthermore, the temperature control component includes a temperature sensor installed inside the heating furnace body, and a display is provided on one side of the heating furnace body. The heating resistance wire, the temperature sensor, and the display are electrically connected through a controller.

[0012] Furthermore, the interior of the heating furnace body is equipped with a support frame.

[0013] Furthermore, mounting brackets are provided on both sides of the take-up roller, and a motor is provided on one side of one of the mounting brackets, with the output end of the motor being connected to the take-up roller via a drive.

[0014] Furthermore, an ultraviolet irradiator is provided on one side of the sample cutter.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Through the coordinated operation of a mixer, a twin-screw mixer, a single-screw blown film extrusion system, a cooling system, a take-up roller, a high-speed mixer, and a sample cutter, the recycled polyethylene pipe requiring heating and corrosion-resistant additives are thoroughly mixed. The heating resistance wire of the heating furnace is activated to heat the material. Next, in the coating stage, the molten material is extruded through the die head to form a pipe blank. The blowing system is activated to expand the pipe blank into a thin film, which is then cooled. Finally, the traction system pulls the blank to the take-up roller for winding, thus forming a protective film on the surface of the recycled polyethylene pipe, enhancing its corrosion resistance. Finally, the sample is cut using a sample cutter, forming a complete processing chain to achieve comprehensive treatment of the recycled polyethylene pipe and improve the overall effect.

[0017] 2. Through the cooperation between the heating furnace body, heating chamber, heating resistance wire, temperature sensor and display, the temperature sensor monitors the temperature change inside the heating furnace body in real time during the heating process and transmits the temperature signal to the controller. The controller compares and calculates the set temperature value and the actual temperature signal, and automatically adjusts the power of the heating element to keep the temperature inside the furnace within the set range. At the same time, the display will show the current temperature value and temperature change curve in real time, which is convenient for operators to observe and monitor. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a heating system for corrosion-resistant treatment of recycled polyethylene pipes according to this utility model.

[0019] Figure 2 This is a schematic cross-sectional view of the heating furnace body of a heating system for corrosion-resistant treatment of recycled polyethylene pipes according to this utility model.

[0020] Figure 3 This utility model relates to a heating system for corrosion-resistant treatment of recycled polyethylene pipes. Figure 1 A magnified diagram of point A in the diagram.

[0021] Figure 4 This is a schematic diagram of a heating system for corrosion-resistant treatment of recycled polyethylene pipes according to this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Mixer; 2. Twin-screw mixer; 3. Discharge port; 4. Heating furnace body; 5. Feed pipe; 6. Valve; 7. Single-screw blown film extrusion system; 8. Conveyor pipe; 9. Cooling system; 10. Take-up roller; 11. High-speed mixer; 12. Sample cutter; 13. Heating chamber; 14. Heating resistance wire; 15. Temperature sensor; 16. Display; 17. Bracket; 18. Mounting bracket; 19. Motor; 20. Ultraviolet irradiator. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example:

[0028] As attached Figure 1 To be continued Figure 4 As shown:

[0029] This utility model provides a heating system for corrosion-resistant treatment of recycled polyethylene pipes, including a mixer 1, a twin-spiral mixer 2 at the bottom of the mixer 1, a discharge port 3 on one side of the twin-spiral mixer 2, a heating furnace body 4 at the other end of the twin-spiral mixer 2, a temperature control component inside the heating furnace body 4, a conveying pipe 5 on one side of the heating furnace body 4, a valve 6 at the conveying pipe 5, a single-screw blown film extrusion system 7 connected to the other end of the conveying pipe 5, a transport pipe 8 on one side of the single-screw blown film extrusion system 7, a cooling system 9 on one side of the transport pipe 8, a take-up roller 10 on the side of the cooling system 9 away from the transport pipe 8, and a high-speed mixer 11 on one side of the cooling system 9. The sample cutter 12, through the cooperation of the mixer 1, the twin-screw mixer 2, the single-screw blown film extrusion system 7, the cooling system 9, the take-up roller 10, the high-speed mixer 11, and the sample cutter 12, thoroughly mixes the recycled polyethylene pipe material that needs to be heated with corrosion-resistant additives. The heating resistance wire 14 of the heating furnace body 4 is activated to heat the material. Then, in the coating process, the molten material is extruded through the die head to form a pipe blank. The blowing system is activated to expand the pipe blank into a thin film, which is then cooled. Finally, it is pulled by the traction system to the take-up roller 10 for winding, thus forming a protective film on the surface of the recycled polyethylene pipe, enhancing the corrosion resistance of the pipe. Finally, the sample cutter 12 is used to cut the sample, forming a complete processing chain to achieve comprehensive treatment of the recycled polyethylene pipe and improve the overall effect.

[0030] The heating furnace body 4 is configured as a double layer, and the interior of the heating furnace body 4 is provided with a heating cavity 13, and the interior of the heating cavity 13 is provided with a heating resistance wire 14.

[0031] The heating furnace body 4 is made of a material that is resistant to high temperatures and has a low thermal conductivity.

[0032] The temperature control component includes a temperature sensor 15 installed inside the heating furnace body 4, and a display 16 is provided on one side of the heating furnace body 4. The heating resistance wire 14, the temperature sensor 15 and the display 16 are electrically connected through a controller.

[0033] The heating furnace body 4 is equipped with a support 17 inside. Through the cooperation between the heating furnace body 4, heating chamber 13, heating resistance wire 14, temperature sensor 15 and display 16, during the heating process, the temperature sensor 15 monitors the temperature change inside the heating furnace body 4 in real time and transmits the temperature signal to the controller. The controller compares and calculates the set temperature value and the actual temperature signal, and automatically adjusts the power of the heating element to keep the temperature inside the furnace within the set range. At the same time, the display 16 displays the current temperature value and temperature change curve in real time, which is convenient for operators to observe and monitor.

[0034] The take-up roller 10 has mounting brackets 18 on both sides, and one of the mounting brackets 18 has a motor 19 on one side. The output end of the motor 19 is connected to the take-up roller 10 for transmission, which facilitates the winding of the cooled and shaped film.

[0035] The sample cutter 12 is equipped with an ultraviolet irradiator 20 on one side. The cut sample is placed in the ultraviolet irradiator 20 for ultraviolet irradiation treatment. The ultraviolet lamp of the ultraviolet irradiator 20 is turned on to emit ultraviolet light, which is reflected by a reflector onto the surface of the pipe to be treated, so that the pipe is irradiated by ultraviolet light. The power of the ultraviolet lamp and the irradiation time are adjusted according to different production needs to achieve the best treatment effect.

[0036] The specific usage and function of this embodiment are as follows:

[0037] First, check the integrity of the device. Then, put the device into actual use. Through the cooperation of the mixer 1, twin-screw mixer 2, single-screw blown film extrusion system 7, cooling system 9, take-up roller 10, high-speed mixer 11, and sample cutter 12, the recycled polyethylene pipe to be heated and the corrosion-resistant additive are thoroughly mixed. The heating resistance wire 14 of the heating furnace body 4 is started to heat the material. Next, the coating process is carried out. The molten material is extruded through the die head to form a pipe blank. The blowing system is started to expand the pipe blank into a thin film, which is then cooled. Finally, the traction system pulls the pipe blank to the take-up roller 10 for winding, thus forming a protective film on the surface of the recycled polyethylene pipe, enhancing the corrosion resistance of the pipe. Finally, the sample cutter 12 is used to cut the pipe into a sample, forming a complete sample. The complete processing chain enables comprehensive treatment of recycled polyethylene pipes, improving overall efficiency. During operation, the heating furnace body 4, heating chamber 13, heating resistance wire 14, temperature sensor 15, and display 16 work together. During heating, the temperature sensor 15 monitors the temperature changes inside the heating furnace body 4 in real time and transmits the temperature signal to the controller. The controller compares and calculates the set temperature value with the actual temperature signal, automatically adjusting the power of the heating elements to maintain the furnace temperature within the set range. Simultaneously, the display 16 shows the current temperature value and temperature change curve in real time, facilitating operator observation and monitoring. Before performance testing of the recycled polyethylene pipes, a sample cutter 12 cuts samples of standard dimensions from the pipes. The cut samples are then placed in an ultraviolet irradiator 20 for ultraviolet irradiation treatment. The ultraviolet lamps of the irradiator 20 are activated, emitting ultraviolet light. The reflector reflects the ultraviolet light onto the surface of the pipe to be treated, exposing the pipe to ultraviolet radiation. The power and irradiation time of the ultraviolet lamps are adjusted according to different production needs to achieve the best treatment effect.

[0038] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A heating system for regenerating the corrosion-resistant treatment of polyethylene pipes, comprising a mixer (1), characterized by the fact that: The bottom of the mixer (1) is provided with a double screw mixer (2), one side of the double screw mixer (2) is provided with a discharge port (3), the other end of the double screw mixer (2) is provided with a heating furnace body (4), the inside of the heating furnace body (4) is provided with a temperature control assembly, one side of the heating furnace body (4) is provided with a feeding pipe (5), the feeding pipe (5) is provided with a valve (6), the other end of the feeding pipe (5) is connected with a single screw blow film machine extrusion system (7), one side of the single screw blow film machine extrusion system (7) is provided with a conveying pipe (8), one side of the conveying pipe (8) is provided with a cooling system (9), the side of the cooling system (9) away from the conveying pipe (8) is provided with a winding roller (10), and one side of the cooling system (9) is provided with a high mixer (11), one side of the high mixer (11) is provided with a sample cutter (12).

2. A heating system for regenerating corrosion-resistant treatment of polyethylene pipe material according to claim 1, characterized in that: The heating furnace body (4) is provided as a double layer, the inside of the heating furnace body (4) is provided with a heating cavity (13), and the inside of the heating cavity (13) is provided with a heating resistance wire (14).

3. A heating system for regenerating corrosion-resistant treatment of polyethylene pipe material according to claim 2, characterized in that: The heating furnace body (4) is made of a material with high temperature resistance and low thermal conductivity.

4. The heating system for regenerating corrosion-resistant treatment of polyethylene pipe material according to claim 3, characterized in that: The temperature control assembly comprises a temperature sensor (15) installed in the inside of the heating furnace body (4), and one side of the heating furnace body (4) is provided with a display (16), and the heating resistance wire (14), the temperature sensor (15) and the display (16) are electrically connected through a controller.

5. A heating system for regenerating corrosion-resistant treatment of polyethylene pipe material according to claim 4, characterized in that: The inside of the heating furnace body (4) is provided with a support (17).

6. A heating system for regenerating corrosion-resistant treatment of polyethylene pipe material according to claim 5, characterized in that: Both sides of the winding roller (10) are provided with mounting frames (18), one side of one of the mounting frames (18) is provided with a motor (19), and the output end of the motor (19) is in transmission connection with the winding roller (10).

7. A heating system for regenerating corrosion-resistant treatment of polyethylene pipe material according to claim 6, characterized in that: One side of the sample cutter (12) is provided with an ultraviolet radiation instrument (20).

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