Recycled polyester bottle chip recovery equipment and vibration cooling device thereof
By employing an inclined vibrating screen and trapezoidal spray head design in the vibration cooling device, the problem of adhesion caused by the high temperature of polyester granules discharged from the pelletizer was solved, achieving uniform cooling and efficient separation of the chips and improving the quality of the polyester chips.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SAILON TECH CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-21
AI Technical Summary
The polyester granules discharged from the pelletizer are still at a high temperature, making them prone to sticking together and clumping, which affects the separation effect of the vibrating screen and the quality of the polyester chips.
Design a vibration cooling device, including an inclined vibrating screen and a spray head. The water outlet of the spray head is trapezoidal, and the cooling water gradually expands along the flow direction of the slices. Combined with the vibration motor driving the screen surface to vibrate, uniform cooling of the slices is achieved.
It effectively reduces the temperature of the chips, prevents them from sticking together and clumping, and improves the separation efficiency of the vibrating screen and the quality of the polyester chips.
Smart Images
Figure CN224145084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of recycled polyester bottle flakes recycling, and in particular to a recycled polyester bottle flakes recycling equipment and its vibration cooling device. Background Technology
[0002] The general process for recycling recycled polyester (PET) bottle flakes using physical methods can include: flake melting → filtration → cooling → pelletizing. The molten material extruded after melting and filtration is at a high temperature; therefore, the subsequent cooling, shaping, and pelletizing processes need to be carried out under cold water conditions. To obtain the final polyester chip product, the polyester chips after the pelletizing process need to be filtered to remove impurities. A vibrating screen is typically used to remove small amounts of micro-particles or dust generated during the pelletizing process.
[0003] However, the cooling effect in the pelletizing process is limited, resulting in the polyester particles discharged from the pelletizer still having a certain temperature, which makes them prone to sticking together and clumping, which is not conducive to the vibration separation of the vibrating screen and also affects the quality of subsequent polyester chip products. Utility Model Content
[0004] Therefore, there is a need to provide a recycled polyester bottle chip recycling equipment and its vibration cooling device to solve the problem that the polyester particles discharged from the pelletizer still have a certain temperature, are easy to stick together and clump, which is not conducive to the vibration separation of the vibrating screen.
[0005] To achieve the above objectives, the inventors provide a vibration cooling device for receiving chips conveyed from a pelletizer, comprising:
[0006] A vibration mechanism, comprising a vibrating screen, wherein the vibrating screen is inclined, with a feed inlet on the lower side and a discharge outlet on the higher side; and
[0007] The cooling mechanism includes a cooling pipe and a spray head. The cooling pipe is connected to the spray head. The spray head is located above the feed inlet and facing the feed inlet. The cross-sectional shape of the water outlet of the spray head is trapezoidal, and the waist width of the trapezoid gradually increases along the spraying direction.
[0008] Furthermore, the cooling mechanism also includes a baffle, which is inclinedly disposed inside the vibrating screen, located below the spray head and above the feed inlet.
[0009] Furthermore, the end edge of the baffle is arc-shaped.
[0010] Furthermore: there is one spray head, located at the center of the vibrating screen in the width direction, and the feed inlet is located directly below the spray head.
[0011] Furthermore, the cooling pipe has a U-shaped section that spans the vibrating screen.
[0012] Furthermore, the cooling mechanism also includes a water storage tank, and the bottom of the vibrating screen has a drain plate, with the water storage tank located below the drain plate.
[0013] Furthermore: the vibrating screen is disposed in the water storage tank, which stores cooling water to cool the slices located in the vibrating screen.
[0014] Furthermore, the cooling mechanism also includes a water pump and a water tank, with the input end of the water pump connected to the water tank and the output end of the water pump connected to the cooling pipe.
[0015] Furthermore, the vibration mechanism also includes a vibration motor, which is used to vibrate the vibrating screen so that the slices move from bottom to top along the vibrating screen.
[0016] To achieve the above objectives, the inventors also provide a recycled polyester bottle flake recycling device, comprising:
[0017] Screw extruder;
[0018] A pelletizer, wherein the feed inlet of the pelletizer is connected to the discharge outlet of the screw extruder;
[0019] A vibration cooling device, wherein the inlet of the vibrating screen of the vibration cooling device is connected to the outlet of the pelletizer, and the vibrating cooling device receives the slices conveyed from the pelletizer. The vibration cooling device is a vibration cooling device as described in any of the above embodiments.
[0020] Unlike existing technologies, in the above-mentioned technical solution, the chips output from the pelletizer fall into the vibrating screen through the feed port. The vibrating screen causes the chips to move slowly upward along the inclined screen surface. The spray head outlet adopts a trapezoidal flared design, and the water flow sprayed from the spray head is relatively wide and located in front of the chip flow, effectively cooling the chips a second time and ensuring that the chips can be effectively cooled down to prevent sticking and clumping due to excessive temperature.
[0021] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description
[0022] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this utility model and other related contents, and should not be considered as limitations on this application.
[0023] Figure 1 This is a schematic diagram of the vibration cooling device in this embodiment;
[0024] Figure 2 This is a schematic diagram of the cooling mechanism in this embodiment;
[0025] Figure 3 This is a schematic diagram of the spray head in this embodiment;
[0026] Figure 4 This is a schematic diagram of the recycled polyester bottle flakes recycling equipment in this embodiment.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Vibration mechanism; 11. Vibrating screen; 111. Drainage base plate; 12. Vibrating motor;
[0029] 2. Cooling mechanism; 21. Cooling pipe; 211. U-shaped section; 22. Spray head; 221. Trapezoidal; 23. Baffle; 24. Water storage tank; 241. Water outlet; 25. Water pump; 26. Water tank;
[0030] 3. Screw extruder;
[0031] 4. Pelletizer. Detailed Implementation
[0032] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0033] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0035] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0036] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0037] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0038] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0039] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0040] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0041] The general process for recycling recycled polyester (PET) bottle flakes using physical methods can include: flake melting → filtration → cooling → pelletizing. The molten material extruded after melting and filtration is at a high temperature; therefore, the subsequent cooling, shaping, and pelletizing processes need to be carried out under cold water conditions. To obtain the final polyester chip product, the polyester chips after the pelletizing process need to be filtered to remove impurities. A vibrating screen is typically used to remove small amounts of micro-particles or dust generated during the pelletizing process.
[0042] However, the cooling effect in the pelletizing process is limited, resulting in the polyester particles discharged from the pelletizer still having a certain temperature, which makes them prone to sticking together and clumping, which is not conducive to the vibration separation of the vibrating screen and also affects the quality of subsequent polyester chip products.
[0043] To resolve the above technical issues, please refer to [link / reference]. Figures 1 to 3 This embodiment provides a vibration cooling device for receiving slices conveyed from the pelletizer 4, comprising:
[0044] Vibration mechanism 1 includes a vibrating screen 11, which is inclined, with a feed inlet on the lower side and a discharge outlet on the higher side; and
[0045] Cooling mechanism 2 includes a cooling pipe 21 and a spray head 22. The cooling pipe 21 is connected to the spray head 22. The spray head 22 is located above the feed inlet, facing the feed inlet. The cross-sectional shape of the water outlet of the spray head 22 is trapezoidal 221. Figure 3 As shown, along the spraying direction, the waist width of trapezoid 221 gradually increases, and the waist width refers to the width between the two waists of the trapezoid.
[0046] During operation, the chips output from the pelletizer 4 fall into the vibrating screen 11 through the feed port. The vibrating screen 11 causes the chips to move slowly upward along the inclined screen surface. The spray head 22 has a trapezoidal 221 flared outlet design. The water flow sprayed from the spray head 22 is relatively wide and located in front of the chip flow, effectively cooling the chips and ensuring that the chips can be effectively cooled to prevent sticking and clumping due to excessive temperature.
[0047] Please see Figure 2 In this embodiment, the cooling mechanism 2 further includes a baffle 23, which is inclinedly disposed inside the vibrating screen 11, located below the spray head 22 and above the feed inlet. The baffle 23 allows the slices to follow a predetermined trajectory, avoiding accumulation and splashing, thereby improving screening efficiency and cooling effect.
[0048] Please see Figure 2 Preferably, the end edge of the baffle 23 is arc-shaped, and the baffle 23 is wider on the left and right sides of its length and narrower in the middle, which can promote the separation of the slices to both sides and avoid accumulation.
[0049] Please see Figure 2 In this embodiment, there is one spray head 22, located at the center of the vibrating screen 11 in the width direction, and the inlet is located directly below the spray head 22. The outlet cross-section of the spray head 22 is a trapezoidal structure 221. Along the spraying direction, the width of the two sides of the trapezoid 221 gradually increases, thereby forming a fan-shaped diffusion spray area, allowing the cooling water to cover a wide range of slices. Since both the spray head 22 and the inlet are arranged on the center line of the width direction of the vibrating screen 11, their spraying range can be symmetrically distributed on the left and right sides. Combined with the material dispersion effect of the subsequent baffle 23 or the vibrating screen 11 itself, uniform cooling of the entire screen surface can be achieved.
[0050] Please see Figure 2 In this embodiment, the cooling pipe 21 has a U-shaped portion 211 that spans the vibrating screen 11. This makes full use of the equipment space and improves the overall structural compactness. It also facilitates regular cleaning and inspection.
[0051] Please see Figure 1 In this embodiment, the cooling mechanism 2 further includes a water storage tank 24. The bottom of the vibrating screen 11 has a drain plate 111, and the water storage tank 24 is located below the drain plate 111. The drain plate 111 and the water storage tank 24 are vertically aligned. The surface of the drain plate 111 has several drainage holes or guide channels for guiding the sprayed cooling water to the water storage tank 24 below. The water can be transported to a filtration system or a circulating water supply system through a water pipe to achieve water resource reuse.
[0052] Please see Figure 1 In this embodiment, the vibrating screen 11 is disposed in the water storage tank 24, which stores cooling water to cool the slices located in the vibrating screen 11. The water storage tank 24 always stores a certain level of cooling water, so as the slices move on the screen surface, their bottoms will exchange heat with the cooling water in the water storage tank 24.
[0053] Please see Figure 1In this embodiment, the side wall of the water storage tank 24 is provided with a water outlet 241 at a certain height.
[0054] Please see Figure 1 In this embodiment, the cooling mechanism 2 further includes a water pump 25 and a water tank 26. The input end of the water pump 25 is connected to the water tank 26, and the output end of the water pump 25 is connected to the cooling pipe 21. The water pump 25 draws cooling water from the water tank 26 and pressurizes it to be delivered to the cooling pipe 21. The cooling water is sprayed evenly in a trapezoidal fan shape 221 from the spray head 22 onto the polyester chips falling into the vibrating screen 11, achieving rapid cooling.
[0055] Please see Figure 1 In this embodiment, the vibration mechanism 1 further includes a vibration motor 12, which is used to vibrate the vibrating screen 11 so that the slices move upward along the vibrating screen 11. The vibration motor 12 can be located near the discharge port of the vibrating screen 11. When the vibration motor 12 operates, it drives the vibrating screen 11 to vibrate at a preset frequency. Since the vibrating screen 11 is arranged at an angle, the slices move slowly upward along the screen surface under the action of vibration. Preferably, the vibration motor 12 is a frequency-adjustable motor, and the vibration frequency and amplitude can be adjusted by the control system to adapt to sliced materials with different particle sizes, densities, or temperatures.
[0056] Please see Figures 1 to 4 This embodiment also provides a recycled polyester bottle flake recycling device, including:
[0057] Screw extruder 3;
[0058] Pelletizer 4, the feed inlet of pelletizer 4 is connected to the discharge outlet of screw extruder 3;
[0059] The vibrating cooling device has its inlet of the vibrating screen 11 connected to the outlet of the pelletizer 4, and receives the slices conveyed from the pelletizer 4. The vibrating cooling device is one of the vibrating cooling devices described in any of the above embodiments.
[0060] Working principle of recycled polyester bottle flake recycling equipment:
[0061] Waste polyester bottle flakes, after pretreatment, enter the screw extruder 3, where they melt under heating and screw shearing. The melt is conveyed to the pelletizer 4, where it is cut into granular slices by rotating blades. The high-temperature slices fall from the pelletizer 4 outlet into the inlet of the vibrating screen 11 of the vibration cooling device. At this time, the spray head 22 continuously sprays cooling water to cool the slices. Driven by the vibration motor 12, the vibrating screen 11 generates high-frequency vibration, causing the slices to move slowly upward along the screen surface. During the process, small particles or dust mixed in fall through the screen holes. The sprayed cooling water flows into the water storage tank 24 below through the drain plate 111, and is then pumped back to the cooling pipe 21 by the water pump 25, achieving recycling.
[0062] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A vibrating cooling device for receiving slices delivered from a dicer, characterized in that, include: A vibration mechanism, comprising a vibrating screen, wherein the vibrating screen is inclined, with a feed inlet on the lower side and a discharge outlet on the higher side; as well as The cooling mechanism includes a cooling pipe and a spray head. The cooling pipe is connected to the spray head. The spray head is located above the feed inlet and facing the feed inlet. The cross-sectional shape of the water outlet of the spray head is trapezoidal, and the waist width of the trapezoid gradually increases along the spraying direction.
2. The vibratory cooling device of claim 1, wherein: The cooling mechanism also includes a baffle plate, which is inclinedly disposed inside the vibrating screen, located below the spray head and above the feed inlet.
3. The vibratory cooling device of claim 2, wherein: The end edge of the baffle is arc-shaped.
4. The vibratory cooling device of claim 1, wherein: There is one spray head, located at the center of the vibrating screen in the width direction, and the feed inlet is located directly below the spray head.
5. The vibratory cooling device of claim 1, wherein: The cooling pipe has a U-shaped section that spans the vibrating screen.
6. The vibratory cooling device of claim 1, wherein: The cooling mechanism also includes a water storage tank, and the bottom of the vibrating screen has a drain plate, with the water storage tank located below the drain plate.
7. The vibratory cooling device of claim 6, wherein: The vibrating screen is located in the water storage tank, which stores cooling water to cool the slices located in the vibrating screen.
8. The vibratory cooling device of claim 1, wherein: The cooling mechanism also includes a water pump and a water tank, with the input end of the water pump connected to the water tank and the output end of the water pump connected to the cooling pipe.
9. The vibratory cooling device of claim 1, wherein: The vibration mechanism also includes a vibration motor, which is used to vibrate the vibrating screen so that the slices move from bottom to top along the vibrating screen.
10. A recycled polyester bottle flake recycling apparatus characterized by, include: Screw extruder; A pelletizer, wherein the feed inlet of the pelletizer is connected to the discharge outlet of the screw extruder; A vibration cooling device, wherein the inlet of the vibrating screen of the vibration cooling device is connected to the outlet of the pelletizer to receive the slices conveyed from the pelletizer, and the vibration cooling device is a vibration cooling device according to any one of claims 1 to 9.