Wind turbine blade grouping recycling apparatus
The grouping and recycling equipment for wind turbine blades using liquid separation separates sedimentary and floating materials based on density differences, solving the problems of high loss and serious pollution in existing technologies and achieving efficient and pollution-free recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIJIE ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-07-14
AI Technical Summary
Existing wind turbine blade recycling processes suffer from high losses, low efficiency, and severe pollution. Physical wind separation and pyrolysis methods have problems such as high glass fiber loss rates and environmental pollution.
The wind turbine blade grouping and recycling equipment using liquid separation separates materials by utilizing density differences through a feeding mechanism, a bottom material conveying mechanism, and a floating material conveying mechanism. The separation of bottom and floating materials is ensured by a water level monitoring mechanism to guarantee the stability and efficiency of the separation process.
It achieves rapid and precise material separation, improves recycling efficiency, reduces pollution, and provides effective separation and reuse of resources.
Smart Images
Figure CN224486257U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wind turbine blade recycling technology, and more particularly to a wind turbine blade grouping recycling device. Background Technology
[0002] Currently, based on the material properties of wind turbine blades, common recycling methods include physical air classification and pyrolysis. However, both methods have certain problems. For example, physical air classification uses wind power to separate the components based on their different density ratios. However, since the particle size of glass fiber materials is difficult to unify when they reach the air classification state, air classification is difficult, the glass fiber loss rate is high, and it causes serious environmental pollution. On the other hand, pyrolysis mainly uses rotary kilns or other heating equipment to heat at high temperatures. Epoxy resin and balsa wood are carbonized and removed at high temperatures, leaving glass fiber. However, this method has a significant impact on the strength of the final glass fiber material, resulting in high energy consumption and the inability to recycle balsa wood and other materials. Utility Model Content
[0003] The purpose of this application is to provide a wind turbine blade grouping and recycling device to solve the technical problems of high loss, low efficiency and heavy pollution in the traditional wind turbine blade recycling process in related technologies.
[0004] This application provides a wind turbine blade grouping and recycling device, including: a feeding mechanism, a bottom material conveying mechanism, a floating material conveying mechanism, and a separation tank. The bottom material conveying mechanism is located in the lower half of the separation tank and is used to convey the bottom material out of the separation tank. The floating material conveying mechanism is located on one side of the separation tank and is used to separate the light materials floating on the water surface.
[0005] This application provides a wind turbine blade grouping and recycling device, including: a feeding mechanism, a bottom material conveying mechanism, a floating material conveying mechanism, and a separation tank. The bottom material conveying mechanism is located in the lower half of the separation tank to transport materials settled at the bottom of the separation tank out of the tank. The floating material conveying mechanism is located on one side of the separation tank to separate lightweight materials floating on the water surface. This device achieves grouping and recycling of the mixed materials after the wind turbine blades are broken using liquid separation. The bottom material conveying mechanism transports the grouped materials that have settled to the bottom, while the floating material conveying mechanism transports the grouped materials that are floating on the water surface. This allows for rapid and accurate separation of the bottom and floating materials, improving material separation efficiency without generating any pollution. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of a wind turbine blade grouping and recycling device provided in an embodiment of this application;
[0007] Figure 2 A cross-sectional schematic diagram of a wind turbine blade grouping and recycling device provided in this application embodiment;
[0008] Figure 3 This is a schematic diagram of a filter return manifold provided in an embodiment of this application;
[0009] Figure 4 This is a top view of a wind turbine blade grouping and recycling device provided in an embodiment of this application. Detailed Implementation
[0010] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0011] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.
[0012] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.
[0013] To address the technical problems existing in related technologies, this application provides a wind turbine blade grouping and recycling device. Please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of a wind turbine blade grouping and recycling device provided in an embodiment of this application. The wind turbine blade grouping and recycling device includes: a feeding mechanism, a bottom material conveying mechanism, a floating material conveying mechanism, and a separation tank. The bottom material conveying mechanism is located in the lower half of the separation tank and is used to convey the bottom material out of the separation tank. The floating material conveying mechanism is located on one side of the separation tank and is used to separate the light materials floating on the water surface.
[0014] In one embodiment, the wind turbine blade grouping and recycling equipment, through the cooperation of various mechanisms, groups and screens the wind turbine blades that need to be screened. Specifically, the wind turbine blades after crushing can be grouped and screened according to different materials.
[0015] For example, such as Figure 1 The wind turbine blade grouping and recycling equipment shown has an inlet (not shown in the figure) that can be located at any position on the equipment. This inlet is used to inject clean water into the separation tank (not shown in the figure) of the wind turbine blade grouping equipment during liquid separation treatment. The feeding mechanism 1 can be equipped with an automatic adjustment device to adjust the feeding speed according to the material characteristics. The bottom material conveying mechanism 2 can use a high-efficiency conveyor belt to ensure stable material conveying. The floating material conveying mechanism 3 is equipped with a corresponding filter screen to improve the separation efficiency of floating materials in the mixture.
[0016] In addition, a water level monitoring mechanism 4 can be installed inside the separation tank. It can be equipped with corresponding intelligent sensors to detect the water level inside the separation tank in real time, so as to determine whether the liquid separation treatment of the mixture can be accurately completed.
[0017] Furthermore, when grouping and recycling wind turbine blades, the blades first need to undergo appropriate processing, such as crushing, to obtain a mixture for subsequent grouping and recycling. During liquid separation, the crushed mixture is first fed into the separation tank via the feeding mechanism 1. Water is then injected into the separation tank through the inlet to separate the materials, specifically separating the sediment and the floating material. The sediment is then discharged via the sediment conveying mechanism 2, while the floating material is discharged via the floating material conveying mechanism 3. Simultaneously, since the floating material is discharged via water flow, some water is carried out. The water level monitoring mechanism 4, located in the separation tank, monitors the water level changes in real time. Automated control ensures that the output of the floating material is not affected, guaranteeing the stability and efficiency of the liquid separation process.
[0018] In other words, the water level monitoring unit 4 can automatically adjust the water inflow based on water level changes to prevent overflow or insufficient flow, thereby optimizing the entire recycling process. Through this refined control, the equipment can efficiently and accurately complete the grouped recycling task of wind turbine blades, improving resource utilization.
[0019] It should be noted that the mixture is the material obtained from the crushing of wind turbine blades. In practical applications, the mixture contains components such as fiberglass composite materials, glass fiber, cured epoxy resin, balsa wood, polyethylene, and polypropylene, etc., and each component has a different density. When using water for liquid separation, the mixture can be grouped to obtain settling material and floating material. The density of the settling material is greater than that of water, while the density of the floating material is less than that of water. This process not only achieves effective separation of materials but also facilitates further resource recovery and reuse, such as subsequent dehydration treatment. The densities of each component in the mixture after wind turbine blade crushing are shown in Table 1 below.
[0020] Table 1:
[0021]
[0022]
[0023] Furthermore, referring to Figure 1 The wind turbine blade grouping and recycling equipment also includes a water inlet and a bottom material dewatering mechanism 5. The water inlet (not shown in the figure) is located at the top of the wind turbine blade grouping and recycling equipment, and the input end of the bottom material dewatering mechanism is connected to the output end of the bottom material conveying mechanism.
[0024] For example, the inlet is used to inject water into the separation tank so that the mixture can be separated in the separation tank by liquid separation. The bottom material dewatering mechanism 5 is used to dewater the bottom material conveyed by the bottom material conveying mechanism 3 to ensure that the material is dry and convenient for subsequent processing.
[0025] In practice, for wind turbine blade grouping and recycling equipment, the water inlet and the sediment dewatering mechanism 5 are not necessarily installed simultaneously on the equipment; the specific configuration depends on actual needs. To achieve cyclical processing of the separated materials, and because the materials carry a certain amount of water when leaving the separation tank, water can be injected into the separation tank based on feedback from the water level monitoring mechanism 4. This water injection can be performed using the water inlet on the wind turbine blade grouping and recycling equipment, or alternatively, using the feeding mechanism 1.
[0026] In addition, the sediment separated from the separation tank can be directly recycled. For example, the output end of the sediment conveying mechanism can be directly connected to the sediment recycling space. At the same time, the sediment can also be subjected to corresponding subsequent processing, such as dehydration. In this case, a sediment dehydration mechanism 5 can be installed on the wind turbine blade recycling equipment to dehydrate the sediment separated from the separation tank.
[0027] Furthermore, referring to Figure 2 , Figure 2 A cross-sectional schematic diagram of a wind turbine blade grouping and recycling device provided in this application embodiment. Based on Figure 2 The floating material conveying mechanism 3 includes a floating material filter layer 31, a bottom water collection tank 32, and a filter return water manifold (not shown in the figure). One end of the filter return water manifold is connected to the bottom water collection tank, and the other end of the filter return water manifold is located inside the separation tank.
[0028] For example, the floating material conveying mechanism 3 is used to output the floating material generated during liquid separation and filter it. The water obtained from the filtration process can then be recycled to improve resource recovery efficiency. In practical applications, since the floating material is output based on water flow, water will be output along with the floating material. The floating material filter layer 31 in the floating material conveying mechanism 3 is used to filter the water from the floating material, while the bottom water collection tank 32 stores the filtered water. The water stored in the bottom water collection tank 32 is then recycled back into the separation tank through the filter return water manifold, achieving efficient water resource utilization. Therefore, the filter return water manifold needs to be connected to the bottom water collection tank at one end and connected to the separation tank at the other end to achieve water circulation.
[0029] Furthermore, referring to Figure 3 , Figure 3 This is a schematic diagram of a filter return water manifold provided in an embodiment of this application. The filter return water manifold is provided with a water pipe 331, a screen 332, a water pump 333 and a pressurized drainage pipe 334 arranged sequentially along the water flow direction. The water pipe 331 is connected to the bottom water collection tank, and the pressurized drainage pipe 334 is located inside the separation tank.
[0030] For example, the water stored in the bottom collection tank 32 after being treated by the floating material filter layer 31 may still contain some small impurities. Therefore, when the water in the bottom collection tank 32 is circulated to the separation tank using the filter return manifold, it is first filtered by the screen 332 to effectively intercept small impurities and avoid the impact of small impurities mixed in the water on the entire manifold, such as causing blockage. The water pump 333 provides stable water pressure to ensure smooth water circulation, and the pressurized drainage pipe 334 can improve the efficiency of drainage into the separation tank, ensure the water level balance inside the separation tank, and maintain the stable operation of the system.
[0031] Furthermore, the pressurized drainage pipe 334 is installed at the top inside the separation tank, and the drain outlet of the pressurized drainage pipe 334 is parallel to the water level inside the separation tank.
[0032] For example, the placement of the pressurized drainage pipe 334 ensures uniform water flow distribution, avoids localized water accumulation, and further optimizes the water circulation system inside the separation tank. By precisely controlling the height of the drain outlet, water level stability is effectively maintained, improving overall operating efficiency. Simultaneously, the floating material conveying mechanism 3 also needs to output floating materials, which exist on the water surface of the separation tank. Therefore, the pressurized drainage pipe 334 of the floating material conveying mechanism 3 can be positioned at the top of the separation tank. Then, by ensuring the water level of the floating material conveying mechanism 3 is consistent with the height of the drain outlet of the pressurized drainage pipe 334, the floating material is discharged with the water flow.
[0033] In practice, the wind turbine blade grouping and recycling equipment achieves material separation and recycling based on liquid separation. Inside the separation tank, the sediment and the floating material are separated, and the two groups of materials are output according to a set method. In particular, for lightweight materials floating on the water surface, water flow is used for output. Therefore, it is necessary to ensure that the pressurized drainage pipe 334 of the floating material conveying mechanism 3 can process the floating material. Under normal circumstances, the pressurized drainage pipe 334 needs to be parallel to the water surface, or when the separation tank is full of water, the pressurized drainage pipe 334 can be set at the top, depending on the process used for separation.
[0034] When the booster drain pipe 334 is installed at the top of the separation tank, the separation tank needs to be filled with water. When the booster drain pipe 334 is not installed at the top of the separation tank, it needs to be ensured that the water level in the separation tank is parallel to the booster drain pipe 334.
[0035] Furthermore, the pressurized drainage pipe 334 is a ring pipe.
[0036] Furthermore, several drainage outlets are provided on the ring-shaped pipe.
[0037] For example, the pressurized drainage pipe 334 can be configured as a ring pipe, with several drainage outlets evenly distributed along it. This allows for the flushing of floating materials from multiple angles and in all directions, enabling the materials to be discharged onto the floating material filter layer 31 of the floating material conveying mechanism 3 for filtration. The ring pipe design not only enhances the uniformity of the water flow but also improves drainage efficiency, ensuring that all floating materials are flushed and discharged to the floating material filter layer 31 without any blind spots.
[0038] Furthermore, one can refer to Figure 4 , Figure 4This is a top view of a wind turbine blade grouping and recycling device provided in an embodiment of this application. Specifically, the pressurized drainage pipe 334 is located inside the separation tank on the side away from the floating material filter layer 31.
[0039] For example, since the floating material is output based on the water flow, such as Figure 4 As shown in the figure, the part highlighted in the diagram is the floating material filter layer 31. In this case, the pressurized drainage pipe 334 will be located on the side away from the floating material filter layer 31, i.e. Figure 4 The right side region, when the pressurized drainage pipe 334 drains water, can form a directional water flow, which pushes the floating material to move towards the floating material filter layer 31, thus avoiding backflow.
[0040] Furthermore, the wind turbine blade grouping and recycling equipment also includes a maintenance mechanism 6, which includes an inspection port 61, a manual butterfly valve 62, and a maintenance platform 63. The inspection port 61 and the maintenance platform are located outside the wind turbine blade grouping and recycling equipment, and the manual butterfly valve is located on the water pipe.
[0041] For example, the wind turbine blade grouping and recycling equipment also includes a maintenance mechanism 6 for inspecting and maintaining the wind turbine blade grouping and recycling equipment. Specifically, the inspection port 61 in the maintenance mechanism 6 is located on the outside of the wind turbine blade grouping and recycling equipment, such as on the outer wall, to facilitate the inspection of the inside of the separation tank. The manual butterfly valve 62 is located on the water pipe to facilitate the maintenance of the water pipe in the filter return water manifold. The maintenance platform 63 can inspect and check all the mechanisms to ensure the normal operation of each mechanism.
[0042] Furthermore, the wind turbine blade grouping and recycling equipment also includes a crushing mechanism, wherein the output end of the crushing mechanism is connected to the feeding mechanism.
[0043] For example, when recycling wind turbine blades in groups, the blades are first crushed. This crushing process can be performed using a built-in crushing mechanism. The resulting mixture is then fed into the separation tank of the wind turbine blade grouping and recycling equipment via the feeding mechanism 1 for subsequent liquid separation. Alternatively, the crushing mechanism can be independently installed, using an externally configured crushing mechanism or equipment to crush the blades, and then the resulting mixture is fed into the separation tank via the feeding mechanism 1.
[0044] Furthermore, the separation tank is located inside the wind turbine blade grouping and recycling equipment.
[0045] For example, the separation tank can be a part of the wind turbine blade grouping and recycling equipment or a separate part. That is, the separation tank and the wind turbine blade grouping and recycling equipment can be an integral unit. When it is an integral unit, the separation tank can be set inside the wind turbine blade grouping and recycling equipment, such as using an internal cavity of the wind turbine blade grouping and recycling equipment as a separation tank for liquid separation and grouping recycling of the mixed materials.
[0046] Furthermore, during the operation of the wind turbine blade grouping and recycling equipment, changes in the feed rate and the composition of light and heavy materials may cause repeated fluctuations in the water level in the separation tank, thus affecting production stability. The liquid level and the height of the floating light material determine whether external discharge or increased water volume is necessary; therefore, a transfer tank and related pumps and valves can be installed for regulation.
[0047] Furthermore, considering that the feed contains a certain amount of fine particles, which are easily mixed in the water and accumulate after rinsing, an external circulation filtration and regeneration system for process water can be set up.
[0048] In summary, this application discloses a wind turbine blade grouping and recycling device, comprising: a feeding mechanism, a bottom material conveying mechanism, a floating material conveying mechanism, and a separation tank. The bottom material conveying mechanism is located in the lower half of the separation tank to convey materials settled at the bottom of the separation tank out of the tank. The floating material conveying mechanism is located on one side of the separation tank to separate lightweight materials floating on the water surface. This device achieves grouping and recycling of the mixed materials after the wind turbine blades are broken using liquid separation. The bottom material conveying mechanism transports the grouped bottom material, while the floating material conveying mechanism transports the grouped floating material. This allows for rapid and precise separation of bottom and floating materials, improving material separation efficiency without generating any pollution.
[0049] The foregoing has provided a detailed description of a wind turbine blade grouping and recycling device according to embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application. Moreover, those skilled in the art can make several improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered within the scope of protection of this application.
Claims
1. A wind turbine blade grouping and recycling device, characterized in that, include: The system includes a feeding mechanism, a bottom material conveying mechanism, a floating material conveying mechanism, and a separation tank. The bottom material conveying mechanism is located in the lower half of the separation tank and is used to convey the bottom material out of the separation tank. The floating material conveying mechanism is located on one side of the separation tank and is used to separate light substances floating on the water surface. The floating material conveying mechanism includes a floating material filter layer, a bottom water collection tank, and a filter return water manifold. One end of the filter return water manifold is connected to the bottom water collection tank, and the other end of the filter return water manifold is located inside the separation tank.
2. The wind turbine blade grouping and recycling equipment as described in claim 1, characterized in that, The wind turbine blade grouping and recycling equipment also includes a water inlet and a bottom material dewatering mechanism. The water inlet is located at the top of the wind turbine blade grouping and recycling equipment, and the input end of the bottom material dewatering mechanism is connected to the output end of the bottom material conveying mechanism.
3. The wind turbine blade grouping and recycling equipment as described in claim 1, characterized in that, The filter return water manifold is provided with a water pipe, a screen, a water pump and a booster drainage pipe in sequence along the water flow direction. The water pipe is connected to the bottom water collection tank and the booster drainage pipe is located inside the separation tank.
4. The wind turbine blade grouping and recycling equipment as described in claim 3, characterized in that, The pressurized drainage pipe is located at the top inside the separation tank, and the drain outlet of the pressurized drainage pipe is parallel to the water level inside the separation tank.
5. The wind turbine blade grouping and recycling equipment as described in claim 3, characterized in that, The pressurized drainage pipe is equipped with several drainage outlets.
6. The wind turbine blade grouping and recycling equipment as described in claim 3, characterized in that, The pressurized drainage pipe is located inside the separation tank on the side away from the floating material filter layer.
7. The wind turbine blade grouping and recycling equipment as described in claim 3, characterized in that, The wind turbine blade grouping and recycling equipment also includes a maintenance mechanism, which includes an inspection port, a manual butterfly valve, and a maintenance platform. The inspection port and the maintenance platform are located outside the wind turbine blade grouping and recycling equipment, and the manual butterfly valve is located on the water pipe.
8. The wind turbine blade grouping and recycling equipment as described in claim 1, characterized in that, The wind turbine blade grouping and recycling equipment also includes a crushing mechanism, wherein the output end of the crushing mechanism is connected to the feeding mechanism.
9. The wind turbine blade grouping and recycling equipment as described in claim 1, characterized in that, The separation tank is located inside the wind turbine blade grouping and recycling equipment.