Multifunctional winnowing machine for producing recycled polyester bottle chips
By introducing a vibrating screen and a convenient disassembly structure into the air separator, the problem of heavy debris accumulation was solved, achieving efficient sorting and equipment protection, and improving the quality and efficiency of recycled polyester bottle chip production.
Patent Information
- Application Number
- CN202423027007.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
When processing recycled polyester bottle flake raw materials, traditional air separators tend to accumulate heavier impurities, causing channel blockage, affecting material flow and sorting effect, and reducing product quality and production efficiency.
A multifunctional air separator was designed, which includes a screening component and a vibrating screen. The screen vibrates by driving an eccentric wheel with a motor to drive a transmission rod, thus removing heavier impurities in advance. The screen can be easily disassembled for cleaning and maintenance through a clamping column and push plate structure.
It effectively removes heavier impurities, improves sorting quality and efficiency, protects equipment, reduces maintenance costs, ensures stable operation of the air separator, and facilitates screen maintenance, thereby improving production efficiency and product quality.
Smart Images
Figure CN223493658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air classifier technology, and in particular to a multi-functional air classifier for the production of recycled polyester bottle chips. Background Technology
[0002] With increasing global emphasis on environmental protection and resource recycling, the recycled polyester bottle chip production industry has experienced rapid growth. Polyester bottles, as widely used plastic products, offer significant economic and environmental benefits through recycling. The production process of recycled polyester bottle chips requires meticulous processing of the recycled raw materials to remove impurities and obtain high-quality raw materials. Air classifiers, as a key piece of equipment, play a crucial role in separating materials of different densities and particle sizes. They effectively remove lightweight impurities such as plastic film and dust from the raw materials, providing high-quality raw materials for subsequent processing steps. Therefore, developing efficient and multifunctional air classifiers for recycled polyester bottle chip production is of significant practical importance.
[0003] Traditional air classifiers typically consist of a feeding device, a sorting chamber, a blower system, and a discharge port. Their working principle primarily utilizes the airflow generated by the blower, which forces the material within the sorting chamber. Lighter impurities are carried to a specific outlet by the airflow, while heavier materials fall to their corresponding discharge ports due to gravity. For example, some common air classifiers use horizontal airflow separation; after entering through the feed port, materials of different densities move along different trajectories under the influence of the horizontal airflow, thus achieving separation. Other air classifiers use vertical airflow separation, where materials are separated based on their weight and aerodynamic characteristics within a vertically rising airflow. These air classifiers can meet basic sorting needs to a certain extent, but they often have limitations when dealing with complex raw material compositions and diverse production requirements.
[0004] In existing technologies, air separators often face the problem of heavy impurities accumulating inside when processing recycled polyester bottle flake raw materials. Due to the wide and complex sources of recycled polyester bottle flake raw materials, some heavy impurities, such as stones and metal pieces, are inevitably mixed in. These heavier impurities, upon entering the air separator, may gradually settle and accumulate within the separator's channels due to their greater weight. Especially in the structural design of some traditional air separators, the lack of an effective pretreatment mechanism prevents these heavy impurities from being separated in time before entering the main sorting area. As production progresses, the accumulated heavy impurities severely hinder the normal flow of materials. They not only occupy the internal space of the air separator, affecting the smooth passage of materials, but also interfere with the normal distribution of airflow, resulting in a significant reduction in the sorting effect of the air separator. For example, in a Z-shaped channel air separator, heavier impurities may get stuck at the corners of the channel or accumulate at the bottom, preventing subsequent materials from interacting with the airflow along the expected trajectory. This reduces the separation accuracy of polyester bottle flakes and impurities, ultimately affecting product quality and production efficiency. To address this issue, a multi-functional air separator for recycled polyester bottle flake production is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-functional air separator for the production of recycled polyester bottle chips, which aims to improve the problem of damage and blockage of the device caused by heavy impurities inside the raw materials in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-functional air separator for the production of recycled polyester bottle chips includes a conveying pipe, one end of which is fixedly connected to a Z-type air separator. The outer wall of the Z-type air separator is provided with a support component, which supports the Z-type air separator. A screening component is provided at the top of the conveying pipe, which pre-screens the raw materials.
[0008] The screening assembly includes a base plate disposed on the outer wall of the conveying pipe. An inlet is provided inside the base plate, and a guide pipe is fixedly connected to the bottom of the inlet. The bottom of the guide pipe is fixedly connected to the top of the conveying pipe. A motor is fixedly connected to the top of the base plate, and an eccentric wheel is fixedly connected to the motor output belt. A transmission rod is rotatably connected to the outer wall of the eccentric wheel. A screening housing is rotatably connected to one side of the transmission rod. A screen is disposed inside the screening housing, and a fixing component is disposed inside the screen to fix the screen. An elastic plate is fixedly connected to the outer wall of the screening housing, and the bottom of the elastic plate is fixedly connected to the outer wall of the base plate. A guide plate is fixedly connected to the outer wall of the screening housing, and an inclined plate is fixedly connected to the bottom of the screening housing.
[0009] As a further description of the above technical solution:
[0010] The support assembly includes a fixed frame and a support frame. The outer wall of the fixed frame is fixedly connected to the outer wall of the Z-type air separator, and the top of the support frame is fixedly connected to the bottom of the base plate.
[0011] As a further description of the above technical solution:
[0012] The fixing component includes a locking post, the outer wall of which is slidably connected to the inside of the screen.
[0013] As a further description of the above technical solution:
[0014] The screen has a limiting groove inside, a moving groove inside, and a slide rail inside the screen housing;
[0015] As a further description of the above technical solution:
[0016] A slider is fixedly connected to the outer wall of the screen, the outer wall of the slider is slidably connected to the inside of the slide rail, and the outer wall of the locking post is slidably connected to the inside of the slider.
[0017] As a further description of the above technical solution:
[0018] A limiting ring is fixedly connected to the outer wall of the locking post, and a sliding post is fixedly connected to the outer wall of the limiting ring.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the sliding column is slidably connected to the inside of the moving groove, and a push plate is fixedly connected to the outer wall of the sliding column. The outer wall of the push plate is slidably connected to the inside of the limiting groove.
[0021] As a further description of the above technical solution:
[0022] A spring is fitted on the outer wall of the sliding column. One end of the spring is fixedly connected to the outer wall of the limiting ring, and the other end of the spring is fixedly connected to the inner wall of the screen.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, the vibrating shell of the screen achieves its vibration function by starting a motor. When the motor is started, the motor drives the transmission rod and eccentric wheel and cooperates with the elastic plate to vibrate the screen, thereby pre-treating the raw materials and cleaning up heavier impurities. This solves the problem that heavier impurities inside the raw materials will accumulate in the Z-shaped channel, hindering the normal flow of materials and affecting the sorting effect of the air classifier, thus improving the sorting quality.
[0025] 2. In this utility model, the card column realizes its movement function through the movable push plate. When the push plate is moved, the push plate drives the limiting ring and the sliding column and cooperates with the spring to realize the sliding of the slider inside the screen housing, thereby facilitating the disassembly and assembly of the screen and making it convenient for cleaning and maintenance. This solves the problem that the internal blockage is easy after long-term use due to the inconvenience of disassembly, and improves convenience. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the multi-functional air separator for the production of recycled polyester bottle flakes proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the sieving shell of the multi-functional air separator for the production of recycled polyester bottle flakes proposed in this utility model.
[0028] Figure 3 This is a schematic diagram of the structure of the screen of the multi-functional air separator for the production of recycled polyester bottle flakes proposed in this utility model;
[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0030] Legend:
[0031] 1. Conveying pipe; 2. Screening housing; 3. Z-type air separator; 4. Fixed frame; 5. Support frame; 6. Base plate; 7. Transmission rod; 8. Eccentric wheel; 9. Motor; 10. Screen; 11. Guide plate; 12. Guide pipe; 13. Feed inlet; 14. Elastic plate; 15. Inclined plate; 16. Restricting groove; 17. Push plate; 18. Moving groove; 19. Slide rail; 20. Locking column; 21. Sliding block; 22. Restricting ring; 23. Spring; 24. Sliding column. Detailed Implementation
[0032] 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.
[0033] Reference Figure 1 and Figure 2This utility model provides an embodiment of a multi-functional air classifier for the production of recycled polyester bottle flakes, including a conveying pipe 1. The conveying pipe 1 is made of high-quality stainless steel, which has good corrosion resistance and wear resistance. One end of the conveying pipe 1 is fixedly connected to a Z-type air classifier 3 by a strong welding method. The Z-type air classifier 3 is made of high-strength alloy material to ensure that it can withstand the impact of materials and the pressure of internal airflow during long-term operation. The outer wall of the Z-type air classifier 3 is provided with a support component, which supports the Z-type air classifier 3. A screening component is provided at the top of the conveying pipe 1, which pre-screens the raw materials.
[0034] The screening assembly includes a base plate 6, which is made of thick steel plate and has sufficient strength and stability. The base plate 6 is set on the outer wall of the conveying pipe 1. An inlet 13 is opened inside the base plate 6, and a guide pipe 12 is fixedly connected to the bottom of the inlet 13. The bottom of the guide pipe 12 is fixedly connected to the top of the conveying pipe 1. A motor 9 is fixedly connected to the top of the base plate 6. An eccentric wheel 8 is fixedly connected to the output of the motor 9. The eccentric wheel 8 is made of high-quality steel and has undergone precision machining and heat treatment to ensure that it has good wear resistance and stability when rotating at high speed. A transmission rod 7 is rotatably connected to the outer wall of the eccentric wheel 8. The transmission rod 7 is made of alloy steel and has high strength and toughness, and can withstand large tensile and compressive forces. A screening housing 2 is rotatably connected to one side of the transmission rod 7. The screening housing 2 is made of light... Made of aluminum alloy, it ensures a certain strength while reducing the overall weight, facilitating flexible movement during vibration. A screen 10 is installed inside the screening housing 2, with a fixing component inside to secure it. An elastic plate 14 is fixedly connected to the outer wall of the screening housing 2, with its bottom fixedly connected to the outer wall of the base plate 6. A guide plate 11, made of stainless steel and inclined, is fixedly connected to the outer wall of the screening housing 2. Its function is to guide larger impurities to a specific collection area during screening, preventing them from entering subsequent equipment and causing damage. An inclined plate 15 is fixedly connected to the bottom of the screening housing 2, thus pre-treating the raw materials and preventing larger impurities from entering and damaging the equipment.
[0035] Specifically, during the air separation process of raw materials, the raw materials are first placed on top of the screen 10. Then, the motor 9 is started, which drives the eccentric wheel 8 to rotate. The rotation of the eccentric wheel 8 generates centrifugal force, which in turn drives the transmission rod 7 to rotate. The transmission rod 7 then drives the screen housing 2, causing the screen housing 2 to slide at the connection point with the base plate 6. Since the screen housing 2 and the base plate 6 are connected by an elastic plate 14, the sliding of the screen housing 2 will cause the screen 10 to vibrate efficiently. Under the vibration of the screen 10, the raw materials begin to... Pre-screening is performed so that raw materials meeting the standards pass through the screen 10 and fall onto the top of the inclined plate 15. The inclined plate 15 is set at a certain angle to guide the raw materials passing through the screen 10 to the feed inlet 13. Then, the raw materials fall accurately into the conveying pipe 1 through the guide pipe 12. Larger raw materials are guided and collected by the guide plate 11. The pre-filtered raw materials are then stably transported into the Z-type air classifier 3 through the conveying pipe 1 for more refined air classification, so as to achieve further sorting and purification of the raw materials and remove larger impurities in the raw materials in advance. If these large impurities enter the Z-type air separator 3, they will clog the air separator's channels or interfere with the normal flow of air, affecting the air separation effect. For example, when processing raw materials for recycling waste plastic bottles into polyester bottle flakes, some large stones may be mixed in. If not removed in advance, they will jam the equipment parts in the Z-type air separator 3, causing the air separation process to be unsmooth. However, after removing these large impurities through vibration screening pretreatment, the raw materials entering the Z-type air separator 3 are more uniform. The air separator can more efficiently separate polyester bottle flakes from other light impurities, improving the overall air separation efficiency. The material may contain sharp or hard objects, such as broken glass shards or metal shavings. If these objects enter the Z-type air classifier 3 directly without screening, they will scratch the internal structure of the air classifier, such as the inner wall of the Z-shaped channel and the fan blades, during operation. Over time, this will reduce the service life of the air classifier and increase equipment maintenance costs. Vibration screening pretreatment can remove these potentially damaging objects in advance, protecting the key components of the Z-type air classifier 3, ensuring stable operation of the air classifier, and reducing downtime and maintenance costs caused by equipment damage.
[0036] Reference Figure 1 and Figure 2 The support components include a fixed frame 4 and a support frame 5. The outer wall of the fixed frame 4 is fixedly connected to the outer wall of the Z-type air separator 3, and the top of the support frame 5 is fixedly connected to the bottom of the base plate 6.
[0037] Specifically, the Z-type air separator 3 is supported by the fixed frame 4, which ensures that the air separator remains stable during operation. When the Z-type air separator 3 is working, the material inside will move with the airflow in the Z-shaped channel, and the machine itself will also generate a certain amount of vibration. The fixed frame 4 can firmly fix the air separator and prevent it from shifting due to its own vibration or external factors. The support frame 5 supports the base plate 6, providing a stable foundation for the entire pretreatment and feeding system. In the pretreatment stage, operations such as vibratory screening will generate vibration. If the base plate 6 is not stably supported, it may cause uneven vibration and affect the screening effect.
[0038] Reference Figure 1 and Figure 3 The fixing components include a locking post 20, which is made of high-strength stainless steel with a finely polished surface that is smooth and corrosion-resistant. The outer wall of the locking post 20 is tightly slidably connected to the inside of the screen 10. The screen 10 has a limiting groove 16 and a moving groove 18. A slide rail 19 is provided inside the screen housing 2. A slider 21 is fixedly connected to the outer wall of the screen 10, and its outer wall is slidably connected to the slide rail 19. The locking post 20 is slidably connected to the outer wall of the slider 21. A limiting ring 22 is fixedly connected to the outer wall of the locking post 20. The limiting ring 22 is made of a uniformly thick stainless steel sheet, and its outer diameter... Slightly larger than the diameter of the locking post 20, it can effectively limit the movement range of the locking post 20 and prevent the locking post 20 from falling out of the screen 10. A sliding post 24 is fixedly connected to the outer wall of the limiting ring 22. The outer wall of the sliding post 24 is slidably connected to the inside of the moving groove 18. A push plate 17 is fixedly connected to the outer wall of the sliding post 24. The push plate 17 is made of plastic and has an anti-slip texture on the surface, which makes it easy for the operator to push. The outer wall of the push plate 17 is slidably connected to the inside of the limiting groove 16. A spring 23 is sleeved on the outer wall of the sliding post 24. One end of the spring 23 is fixedly connected to the outer wall of the limiting ring 22, and the other end of the spring 23 is fixedly connected to the inner wall of the screen 10, so that the screen 10 can be easily disassembled for cleaning and maintenance.
[0039] Specifically, after the air separation is completed, the operator can press the push plate 17. At this time, the push plate 17 is activated by force, which drives the connected sliding column 24 to move. The movement of the sliding column 24 in turn drives the limiting ring 22 to move synchronously. The limiting ring 22 then causes the locking column 20 to slide inside the screen housing 2. During this process, the movement of the locking column 20 will compress the spring 23, so that the screen 10 can be smoothly pulled out from inside the screen housing 2. This makes it convenient for the staff to perform a comprehensive cleaning and maintenance, ensuring that the screen 10 performs well for continued use. After cleaning and maintenance are completed, press the push plate 17 again to carefully slide the slider 21 along the slide rail 19 to the corresponding position, and then release the push plate 17. At this time, the compressed spring 23 will... The springback mechanism causes the locking pin 20 to return to its original position, thus firmly securing the screen 10 again. Then, the next round of pre-screening can begin. After prolonged use, the screen 10 accumulates a large amount of impurities, such as dust and small plastic fragments. These impurities clog the mesh, reducing screening efficiency and accuracy. The screen 10 can be easily disassembled and taken to a dedicated cleaning area for thorough cleaning. For example, a high-pressure water gun can be used to rinse the mesh to remove stubborn impurities, or a suitable cleaning agent can be used to soak the screen 10 to remove oil and other contaminants. This ensures that the screen 10 maintains good permeability, allowing raw materials to pass through accurately and improving production efficiency and product quality.
[0040] Working principle: When performing air separation on raw materials, the raw materials are placed on top of the screen 10. Then, the motor 9 is started, which drives the eccentric wheel 8 to rotate. The eccentric wheel 8 then drives the transmission rod 7 to rotate, which in turn drives the screen housing 2 to slide. Simultaneously, because the screen housing 2 is connected to the base plate 6 via the elastic plate 14, the screen 10 vibrates, thus pre-screening the raw materials. Qualified raw materials fall through the screen 10 to the top of the inclined plate 15, are then guided by the inclined plate 15 to the inlet 13, and then fall into the conveying pipe 1 through the guide pipe 12. Larger raw materials are filtered and collected by the guide plate 11 and then pass through the conveying pipe. 1. The pre-filtered raw material is transferred to the Z-type air separator 3 for air separation. After air separation, the push plate 17 can be pressed to move the sliding column 24. Then, the sliding column 24 moves the limiting ring 22, thereby causing the locking column 20 to slide inside the screen housing 2 and compressing the spring 23. This allows the screen 10 to be pulled out from inside the screen housing 2 for cleaning and maintenance before use. After cleaning and maintenance, the push plate 17 is pressed again to slide the slider 21 into the slide rail 19. After reaching the corresponding position, the push plate 17 is released, and the spring 23 rebounds to return the locking column 20 to its original position, fixing the screen 10 for pre-screening.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 multi-functional air separator for the production of recycled polyester bottle flakes, comprising a conveying pipe (1), characterized in that: One end of the conveying pipe (1) is fixedly connected to a Z-type air classifier (3). The outer wall of the Z-type air classifier (3) is provided with a support component, which supports the Z-type air classifier (3). The top of the conveying pipe (1) is provided with a screening component, which pre-screens the raw materials. The screening component includes a base plate (6), which is disposed on the outer wall of the conveying pipe (1). An inlet (13) is provided inside the base plate (6). A guide pipe (12) is fixedly connected to the bottom of the inlet (13). The bottom of the guide pipe (12) is fixedly connected to the top of the conveying pipe (1). A motor (9) is fixedly connected to the top of the base plate (6). An eccentric wheel (8) is fixedly connected to the output of the motor (9). A transmission rod (7) is rotatably connected to the outer wall of the eccentric wheel (8). (7) A sieving shell (2) is rotatably connected to one side. A screen (10) is provided inside the sieving shell (2). A fixing component is provided inside the screen (10). The fixing component is used to fix the screen (10). An elastic plate (14) is fixedly connected to the outer wall of the sieving shell (2). The bottom of the elastic plate (14) is fixedly connected to the outer wall of the base plate (6). A guide plate (11) is fixedly connected to the outer wall of the sieving shell (2). An inclined plate (15) is fixedly connected to the bottom of the sieving shell (2).
2. The multi-functional air separator for recycled polyester bottle flake production according to claim 1, characterized in that: The support assembly includes a fixed frame (4) and a support frame (5). The outer wall of the fixed frame (4) is fixedly connected to the outer wall of the Z-type air separator (3), and the top of the support frame (5) is fixedly connected to the bottom of the base plate (6).
3. The multi-functional air separator for recycled polyester bottle flake production according to claim 1, characterized in that: The fixing component includes a locking post (20), the outer wall of which is slidably connected to the inside of the screen (10).
4. The multi-functional air separator for recycled polyester bottle flake production according to claim 3, characterized in that: The screen (10) has a limiting groove (16) inside, the screen (10) has a moving groove (18) inside, and the screen moving shell (2) has a slide rail (19) inside.
5. The multi-functional air separator for recycled polyester bottle flake production according to claim 4, characterized in that: The outer wall of the screen (10) is fixedly connected to a slider (21), the outer wall of the slider (21) is slidably connected to the inside of the slide rail (19), and the outer wall of the locking post (20) is slidably connected to the inside of the slider (21).
6. The multi-functional air separator for recycled polyester bottle flake production according to claim 5, characterized in that: A limiting ring (22) is fixedly connected to the outer wall of the locking post (20), and a sliding post (24) is fixedly connected to the outer wall of the limiting ring (22).
7. The multi-functional air separator for recycled polyester bottle flake production according to claim 6, characterized in that: The outer wall of the sliding column (24) is slidably connected to the inside of the moving groove (18), and a push plate (17) is fixedly connected to the outer wall of the sliding column (24). The outer wall of the push plate (17) is slidably connected to the inside of the limiting groove (16).
8. The multi-functional air separator for recycled polyester bottle flake production according to claim 7, characterized in that: A spring (23) is fitted on the outer wall of the sliding column (24). One end of the spring (23) is fixedly connected to the outer wall of the limiting ring (22), and the other end of the spring (23) is fixedly connected to the inner wall of the screen (10).