Drying equipment for preparing polyester fibers by recycling waste plastic bottles
By combining high-pressure nozzles and stirring rods, the problem of foreign matter contamination on polyester chips is solved, achieving efficient cleaning and drying, and ensuring the clean recycling of polyester chips.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TIANLI NEW MATERIALS CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-15
AI Technical Summary
In the process of recycling waste plastic bottles to produce polyester fibers, foreign objects or debris are easily left on the polyester chips, leading to contamination and poor drying effect.
The polyester chips are cleaned by spraying water from a high-pressure nozzle, combined with stirring rod and heating device. The removal and drying of foreign matter are achieved through the synergistic action of multiple components.
It effectively removes foreign matter from polyester chips, improves cleaning efficiency, and speeds up the drying process, ensuring the cleanliness and efficient recycling of polyester chips.
Smart Images

Figure CN224240084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste plastic bottle recycling technology, specifically a drying device for recycling waste plastic bottles to prepare polyester fibers. Background Technology
[0002] Waste plastic bottle recycling refers to the process of collecting, sorting, processing, and reusing used plastic bottles. Recycled plastic bottles can be transformed into various useful products through different processing methods.
[0003] According to CN116294491B, a drying device for preparing polyester fibers from recycled waste plastic bottles includes a drying chamber and a processing rack. A lifting frame is installed inside the drying chamber via a stabilizing mechanism. An adjusting screw connected to the lifting frame is rotatably mounted on the bottom wall of the drying chamber. A column is fixedly mounted on the bottom wall of the lifting frame. A transmission cavity is provided inside the column. Multiple stirring shafts extending to the outer surface of the column are rotatably mounted within the transmission cavity. Multiple stirring rods are fixedly mounted on the outer walls of each stirring shaft. A stirring motor is fixedly mounted on the inner wall of the transmission cavity. This invention, by setting up components such as a lifting frame, stirring shafts, stirring rods, a stirring motor, and a drive gear, can achieve the stirring, dispersing, and drying treatment of polyester chips, avoiding chip stacking that affects the drying effect. Furthermore, the multiple stirring shafts achieve synchronous rotation and stirring / dispersing through the drive gear and transmission gear, ensuring the interoperability of the device.
[0004] Polyester chips can be produced using the aforementioned processing racks and other structures. However, after recycling and slicing waste plastic bottles, foreign objects or debris are easily retained inside. During the drying and recycling process, these foreign objects are collected, causing contamination to the polyester chips. Utility Model Content
[0005] The purpose of this invention is to provide a drying device for recycling waste plastic bottles to produce polyester fibers, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying device for recycling waste plastic bottles to prepare polyester fibers, comprising a box body, a box cover at the top of the box body, a first motor fixedly connected to the top of the box cover, a first bevel gear fixedly connected to the output end of the first motor, a second bevel gear meshing at the bottom end of the first bevel gear, a rotating rod fixedly connected to the inner wall of the second bevel gear, a rotating block fixedly connected to the surface of the rotating rod, a water outlet plate fixedly connected to the bottom end of the rotating block, a connecting pipe fixedly connected to the top of the water outlet plate, a pump body fixedly connected to the end of the connecting pipe away from the water outlet plate, and a conduit fixedly connected to the top of the pump body.
[0007] As a further preferred embodiment of this technical solution, the first bevel gear and the second bevel gear are located inside the tank cover, the rotating rod is rotatably connected to the tank cover, multiple high-pressure nozzles are provided at the bottom of the water outlet plate, and the pump body is fixedly connected to the tank cover.
[0008] As a further preferred embodiment of this technical solution, a heating box is fixedly connected to the bottom of the box cover, a resistance wire is fixedly connected to the inner wall of the heating box, and a dustproof net is fixedly connected to the bottom of the heating box.
[0009] As a further preferred embodiment of this technical solution, a feed inlet is fixedly connected to the right side of the box, a drain outlet is fixedly connected to the bottom of the box, a connecting block is fixedly connected to the inner wall of the box, a second motor is fixedly connected to the bottom of the box, a threaded rod is fixedly connected to the output end of the second motor, a cylinder is slidably connected inside the box, threaded blocks are fixedly connected to the left and right sides of the cylinder, and a stabilizing rod is slidably connected inside the threaded blocks.
[0010] As a further preferred embodiment of this technical solution, the drain outlet is equipped with a solenoid valve, the threaded rod and the threaded block are threadedly connected, and the stabilizing rod is fixedly connected to the housing and the connecting block.
[0011] As a further preferred embodiment of this technical solution, a filter hole is provided at the bottom of the cylinder, a stirring motor is fixedly connected to the bottom end of the cylinder, a connecting shaft is fixedly connected to the output end of the stirring motor, and a stirring rod is fixedly connected to the surface of the connecting shaft.
[0012] As a further preferred embodiment of this technical solution, the number of filter holes is provided in multiple ways, the connecting shaft passes through the cylinder and extends into its interior, and the number of stirring rods is provided in multiple ways.
[0013] This utility model provides a drying device for recycling waste plastic bottles to prepare polyester fibers, which has the following beneficial effects:
[0014] (1) This utility model starts the pump body to pump water from the water tank connected to the conduit into the connecting pipe and deliver it to the water outlet plate. The water is sprayed out through multiple high-pressure nozzles at the bottom. Under the action of water pressure, foreign objects attached to the polyester chips are removed. At the same time, the first motor is started, and its output shaft drives the first bevel gear to rotate. The second bevel gear rotates accordingly and drives the rotating rod and the water outlet plate to rotate back and forth, thereby adjusting the water outlet angle to improve the cleaning effect of the polyester chips.
[0015] (2) By starting the stirring motor, the output shaft of this utility model drives the connecting shaft to rotate, and the multiple stirring rods rotate accordingly. This increases the contact with water flow during the cleaning of polyester chips, causing foreign objects to detach and enter the bottom of the box through the filter holes. When drying the polyester chips, the stirring rods can be rotated to break them up and cause the water droplets to detach from their surface, thereby accelerating the drying efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a bottom view of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the box lid of this utility model;
[0019] Figure 4 This is a schematic diagram of the internal structure of the cylinder of this utility model;
[0020] Figure 5 This is a schematic diagram of the stirring motor structure of this utility model.
[0021] In the diagram: 1. Box body; 2. Box cover; 3. First motor; 4. First bevel gear; 5. Second bevel gear; 6. Rotating rod; 7. Rotating block; 8. Water outlet plate; 9. Connecting pipe; 10. Pump body; 11. Guide tube; 12. Heating box; 13. Resistance wire; 14. Dustproof net; 15. Feed inlet; 16. Drain outlet; 17. Connecting block; 18. Second motor; 19. Threaded rod; 20. Cylinder; 21. Threaded block; 22. Stabilizing rod; 23. Filter hole; 24. Stirring motor; 25. Connecting shaft; 26. Stirring rod. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] This utility model provides a technical solution: such as Figure 1 and Figure 5 As shown in this embodiment, a drying device for preparing polyester fiber from recycled waste plastic bottles includes a box body 1. A box cover 2 is provided at the top of the box body 1. A first motor 3 is fixedly connected to the top of the box cover 2. A first bevel gear 4 is fixedly connected to the output end of the first motor 3. A second bevel gear 5 meshes with the bottom end of the first bevel gear 4. A rotating rod 6 is fixedly connected to the inner wall of the second bevel gear 5. A rotating block 7 is fixedly connected to the surface of the rotating rod 6. A water outlet plate 8 is fixedly connected to the bottom end of the rotating block 7. A connecting pipe 9 is fixedly connected to the top of the water outlet plate 8. A pump body 10 is fixedly connected to the end of the connecting pipe 9 away from the water outlet plate 8. A conduit 11 is fixedly connected to the top of the pump body 10.
[0024] By starting the pump body 10, water in the water tank connected to the conduit 11 is pumped into the connecting pipe 9 and delivered to the water outlet plate 8. The water is sprayed out through multiple high-pressure nozzles at its bottom. Under the action of water pressure, foreign objects attached to the polyester chips are removed. At the same time, the first motor 3 is started, and its output shaft drives the first bevel gear 4 to rotate. The second bevel gear 5 rotates accordingly, and drives the rotating rod 6 and the water outlet plate 8 to rotate back and forth, thereby adjusting the water outlet angle to improve the cleaning effect of the polyester chips.
[0025] The first bevel gear 4 and the second bevel gear 5 are located inside the tank cover 2. The rotating rod 6 is rotatably connected to the tank cover 2. Multiple high-pressure nozzles are provided at the bottom of the water outlet plate 8. The pump body 10 is fixedly connected to the tank cover 2.
[0026] A heating box 12 is fixedly connected to the bottom of the box cover 2, a resistance wire 13 is fixedly connected to the inner wall of the heating box 12, and a dustproof net 14 is fixedly connected to the bottom of the heating box 12.
[0027] By activating the resistance wire 13, the interior of the chamber 1 is heated to complete the drying process of the polyester chips. A dustproof net 14 is installed on the heating chamber 12 to prevent foreign objects from entering the heating chamber 12 and to effectively prevent the polyester chips from contacting the resistance wire 13.
[0028] A feed inlet 15 is fixedly connected to the right side of the box body 1, a drain outlet 16 is fixedly connected to the bottom of the box body 1, a connecting block 17 is fixedly connected to the inner wall of the box body 1, a second motor 18 is fixedly connected to the bottom of the box body 1, a threaded rod 19 is fixedly connected to the output end of the second motor 18, a cylinder 20 is slidably connected inside the box body 1, threaded blocks 21 are fixedly connected to the left and right sides of the cylinder 20, and a stabilizing rod 22 is slidably connected inside the threaded blocks 21.
[0029] By starting the second motor 18, its output shaft drives the threaded rod 19 to rotate, and the threaded block 21 drives the cylinder 20 to move upward, thereby adjusting the height of the cylinder 20 to facilitate the separation of wastewater and polyester chips. After drying is completed, the cylinder 20 can be controlled to continue to move upward, thereby facilitating the removal of polyester chips.
[0030] The drain outlet 16 is equipped with a solenoid valve, and the threaded rod 19 and threaded block 21 are threadedly connected. The stabilizing rod 22 is fixedly connected to the housing 1 and the connecting block 17.
[0031] A filter hole 23 is provided at the bottom of the cylinder 20. A stirring motor 24 is fixedly connected to the bottom end of the cylinder 20. A connecting shaft 25 is fixedly connected to the output end of the stirring motor 24. A stirring rod 26 is fixedly connected to the surface of the connecting shaft 25.
[0032] By starting the stirring motor 24, its output shaft drives the connecting shaft 25 to rotate, and causes multiple stirring rods 26 to rotate accordingly. This increases the contact with water flow during the cleaning process of polyester chips, causing foreign objects to detach and enter the bottom of the chamber 1 through the filter holes 23. When drying the polyester chips, the rotation of the stirring rods 26 can break them up and cause the water droplets to detach from their surface, thereby accelerating the drying efficiency.
[0033] The filter holes 23 are provided in multiple ways, the connecting shaft 25 passes through the cylinder 20 and extends into its interior, and the stirring rods 26 are provided in multiple ways.
[0034] This utility model provides a drying device for recycling waste plastic bottles to prepare polyester fibers. The specific working principle is as follows:
[0035] In use, polyester chips are placed into the housing 1 through the feed inlet 15. They then move downwards along the inlet 15 into the cylinder 20. The pump 10 is activated, drawing water from the tank connected to the conduit 11 into the connecting pipe 9 and then into the outlet plate 8. The water is sprayed out through multiple high-pressure nozzles at the bottom of the plate. Under water pressure, foreign objects adhering to the polyester chips are removed. Simultaneously, the first motor 3 is activated, its output shaft driving the first bevel gear 4 to rotate. The second bevel gear 5 rotates accordingly, causing the rotating rod 6 and the outlet plate 8 to reciprocate, thereby adjusting the water outlet angle. Then, the stirring motor 24 is started, and its output shaft drives the connecting shaft 25 to rotate, and the multiple stirring rods 26 rotate accordingly, thereby increasing the contact between the polyester chips and the water flow, and causing foreign objects to detach. After the cleaning is completed, the second motor 18 is started, and its output shaft drives the threaded rod 19 to rotate. The threaded block 21 drives the cylinder 20 to move upward, and the cleaned foreign objects enter the bottom of the box 1 through the filter hole 23. At this time, the solenoid valve in the drain port 16 is opened to discharge the sewage and foreign objects. After the sewage is discharged, the resistance wire 13 is activated to dry the polyester chips with high-temperature gas.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drying device for recycling waste plastic bottles to prepare polyester fibers, comprising a housing (1), characterized in that: The top of the box (1) is provided with a box cover (2), and the top of the box cover (2) is fixedly connected to a first motor (3). The output end of the first motor (3) is fixedly connected to a first bevel gear (4). The bottom end of the first bevel gear (4) is meshed with a second bevel gear (5). The inner wall of the second bevel gear (5) is fixedly connected to a rotating rod (6). The surface of the rotating rod (6) is fixedly connected to a rotating block (7). The bottom end of the rotating block (7) is fixedly connected to a water outlet plate (8). The top of the water outlet plate (8) is fixedly connected to a connecting pipe (9). The end of the connecting pipe (9) away from the water outlet plate (8) is fixedly connected to a pump body (10). The top of the pump body (10) is fixedly connected to a conduit (11).
2. The drying equipment for preparing polyester fiber from recycled waste plastic bottles according to claim 1, characterized in that: The first bevel gear (4) and the second bevel gear (5) are located inside the tank cover (2). The rotating rod (6) and the tank cover (2) are rotatably connected. The bottom of the water outlet plate (8) is provided with multiple high-pressure nozzles. The pump body (10) and the tank cover (2) are fixedly connected.
3. The drying equipment for preparing polyester fiber from recycled waste plastic bottles according to claim 1, characterized in that: A heating box (12) is fixedly connected to the bottom of the box cover (2), a resistance wire (13) is fixedly connected to the inner wall of the heating box (12), and a dustproof net (14) is fixedly connected to the bottom of the heating box (12).
4. The drying equipment for preparing polyester fiber from recycled waste plastic bottles according to claim 1, characterized in that: A feed inlet (15) is fixedly connected to the right side of the box (1), a drain outlet (16) is fixedly connected to the bottom end of the box (1), a connecting block (17) is fixedly connected to the inner wall of the box (1), a second motor (18) is fixedly connected to the bottom end of the box (1), a threaded rod (19) is fixedly connected to the output end of the second motor (18), a cylinder (20) is slidably connected inside the box (1), threaded blocks (21) are fixedly connected to the left and right sides of the cylinder (20), and a stabilizing rod (22) is slidably connected inside the threaded block (21).
5. The drying equipment for preparing polyester fiber from recycled waste plastic bottles according to claim 4, characterized in that: The drain outlet (16) is equipped with a solenoid valve. The threaded rod (19) and the threaded block (21) are threaded together. The stabilizing rod (22) is fixedly connected to the housing (1) and the connecting block (17).
6. The drying equipment for preparing polyester fiber from recycled waste plastic bottles according to claim 4, characterized in that: The bottom of the cylinder (20) is provided with a filter hole (23), and a stirring motor (24) is fixedly connected to the bottom end of the cylinder (20). A connecting shaft (25) is fixedly connected to the output end of the stirring motor (24), and a stirring rod (26) is fixedly connected to the surface of the connecting shaft (25).
7. The drying equipment for preparing polyester fiber from recycled waste plastic bottles according to claim 6, characterized in that: The number of filter holes (23) is provided in multiples, the connecting shaft (25) passes through the cylinder (20) and extends into its interior, and the number of stirring rods (26) is provided in multiples.