Integrated recovery device for waste wind power blades

Abstract

The invention relates to a waste wind power blade integrated recovery device which comprises a support, a wind power generation device and a wind power generation device. The rolling cutting mechanism comprises a driving compression roller, a driven compression roller and two annular sawtooth blades which are rotationally mounted on the bracket; the shearing and smashing mechanism comprises a smashing cutter bin and a smashing cutter roller, the smashing cutter bin is fixedly installed on the support and located below the smashing cutter roller, the smashing cutter roller is rotationally installed on the support, and one end of the smashing cutter roller is connected with the driving assembly; the top of the side face, close to the smashing knife roll, of the smashing knife bin is provided with multiple knife teeth matched with the multiple blades. And the recycling mechanism is fixedly mounted on the bracket and is used for recycling the wind power blades crushed by the crushing channel. The rolling cutting mechanism and the shearing and smashing mechanism are matched with each other and can conduct one-way transmission, and the problem that the recycling efficiency is low when the waste wind power blades are recycled is solved.

Description

Technical Field

[0001] The present application relates to the field of material recycling, and in particular to an integrated recycling device for waste wind turbine blades. Background Art

[0002] Wind turbine blades are one of the core components of wind turbines. They convert wind energy into mechanical energy, which in turn drives the generator to generate electricity. Blades are usually made of composite materials to ensure strength and lightness, and are designed to maximize wind capture efficiency and reduce noise. With the rapid development of the wind power industry, a large number of wind turbine blades are gradually entering the retirement period. Since waste wind turbine blades occupy a large area, resulting in a waste of land resources, it is necessary to recycle waste wind turbine blades.

[0003] Since wind turbine blades are large in size and have a relatively narrow and long hollow structure, the existing method of recycling waste wind turbine blades is generally to manually cut the wind turbine blades into small plates using an electric saw, and then put the cut small plates into a traditional two-axis transmission shredder. In addition, since the rotation speed of the traditional shredder is very slow, the crushed products are all in blocks, and they need to be put into a high-speed rotating crusher for fine crushing to obtain a mixture of resin particles and reinforcing fibers. This process not only requires a lot of manual operation, but also uses multiple devices. The transmission between the devices also relies on additional transportation equipment, which is very time-consuming and costly, resulting in low recycling efficiency of waste wind turbine blades. At present, no effective solution has been proposed to the problem of low recycling efficiency when recycling waste wind turbine blades. Summary of the invention

[0004] The present invention provides an integrated recycling device for waste wind turbine blades to solve the problem of low recycling efficiency when recycling waste wind turbine blades.

[0005] An integrated recycling device for waste wind turbine blades, the recycling device comprising:

[0006] Bracket;

[0007] The rolling and cutting mechanism comprises an active pressure roller, a driven pressure roller and two annular sawtooth blades rotatably mounted on a bracket, the first ends of the active pressure roller and the driven pressure roller are respectively coaxially fixed with the two staggered and fitted annular sawtooth blades and the second ends are both connected to a driving assembly, the active pressure roller and the driven pressure roller rotate in parallel and in opposite directions and the gap forms a rolling channel for the wind turbine blades to pass through;

[0008] The shearing and crushing mechanism comprises a crushing knife bin and a crushing knife roller, wherein the crushing knife bin is fixedly mounted on a bracket and is located below the crushing knife roller, the crushing knife roller is rotatably mounted on the bracket and one end of the crushing knife roller is connected to a driving assembly, the crushing knife roller surface has multiple sets of blades, the crushing knife bin has multiple sets of teeth matched with the multiple sets of blades at the top of the side surface close to the crushing knife roller, the gaps between the multiple sets of blades and the multiple sets of teeth form a crushing channel for crushing the wind turbine blades, and the friction force provided by the active pressure roller and the driven pressure roller to the wind turbine blades passing through the rolling channel is directed to the crushing channel;

[0009] The recovery mechanism is fixedly mounted on the bracket and is used for recovering the wind turbine blades crushed by the crushing channel.

[0010] In some of these embodiments, the recovery mechanism includes a sorting component and a separation component;

[0011] The sorting component includes an active roller, a driven roller and a fan. One end of the active roller and the driven roller are connected to a driving component. The fan is fixedly installed at the bottom of the bracket. A blowing port is opened on the side of the crushing knife chamber close to the crushing knife roller. The blowing port is connected to the output port of the fan. The wind direction is from the crushing knife roller to the active roller. The surfaces of the active roller and the driven roller are provided with multiple groups of sorting blades.

[0012] In some of the embodiments, the separation assembly includes a screen, a collecting box, four shock-absorbing springs, a vibrating screen frame and two vibration motors. The screen is located directly below the active roller, the first ends of the four shock-absorbing springs are fixedly connected to the upper surface of the vibrating screen frame and the second ends are fixedly connected to the lower surface of the collecting box, the screen is fixedly mounted on the upper surface of the collecting box, the two vibration motors are fixedly mounted on the side walls of the collecting box, and the vibrating screen frame is fixedly mounted on the bracket.

[0013] In some of the embodiments, the recovery device further comprises:

[0014] a pair of gap adjustment mechanisms;

[0015] Each gap adjustment mechanism includes a servo motor, a mounting bin, a driving bevel gear, a driven bevel gear, a threaded rod and a telescopic plate. The servo motor and the mounting bin are fixedly mounted on a bracket. The interior of the mounting bin is divided into an upper half and a lower half by a partition plate. The output shaft of the servo motor passes through the side wall of the upper half of the mounting bin and is coaxially fixed with the driving bevel gear. The driven bevel gear is rotatably mounted on the partition plate. The first end of the threaded rod passes through the partition plate and is coaxially fixed with the driven bevel gear. The telescopic plate is slidably mounted on the lower half of the mounting bin. A threaded hole is provided inside the telescopic plate. The second end of the threaded rod is threadedly mounted in the threaded hole. The bottom end of the telescopic plate is rotatably sleeved on the driven pressure roller.

[0016] In some of the embodiments, the driving assembly includes a first driving component, a second driving component and a third driving component fixedly mounted on the bracket, the first driving component is used to drive the active pressure roller and the driven pressure roller to rotate, the second driving component is used to drive the crushing knife roller to rotate, and the third driving component is used to drive the active roller and the driven roller to rotate.

[0017] In some of the embodiments, the first driving component includes a driving motor, a driving sprocket, a driving spur gear, a driven spur gear, a driven sprocket and a chain, the output shaft of the driving motor is coaxially fixed with the driving sprocket and the driving spur gear, the driven spur gear is coaxially fixed with the driving pressure roller, the driving spur gear and the driven spur gear are meshed, the driven sprocket is coaxially fixed with the driven pressure roller, and the chain is meshed and wound between the driving sprocket and the driven sprocket.

[0018] In some of the embodiments, a sprocket tensioning component is provided in the first driving component, and the sprocket tensioning component includes an adjusting sprocket, a fixing plate, a spring rod and a sliding block. The fixing plate is fixedly mounted on the bracket, a sliding groove is provided on the fixing plate, a spring rod is fixedly mounted in the sliding groove, a first end of the spring rod is fixedly connected to a side wall of the sliding groove, and a second end is fixedly connected to the sliding block. The adjusting sprocket is rotatably mounted on the sliding block, and the adjusting sprocket is meshed with the chain.

[0019] In some of the embodiments, the axis of the active pressure roller is at the same height as the axis of the active roller, the axis of the driven pressure roller is at the same height as the axis of the driven roller, and the active pressure roller and the active roller are symmetrically distributed on both sides of the crushing knife roller.

[0020] In some of the embodiments, each group of sorting blades includes a plurality of arc-shaped metal wires, and the plurality of arc-shaped metal wires are circumferentially distributed on the active roller and the driven roller.

[0021] In some of the embodiments, an arc-shaped baffle plate which is concentric with the crushing blade roller is fixedly mounted on the bracket, and the crushing blade roller is located inside the arc-shaped baffle plate.

[0022] Compared with the related art, the present invention has the following beneficial effects:

[0023] 1. The rolling and cutting mechanism of the present invention can compact and cut large-volume waste wind turbine blades into multiple small panels. The splitting process can effectively reduce the size of the equipment, and the compacted panels can be transported from the rolling channel to the crushing channel through the friction provided by the rotation of the active pressure roller and the driven pressure roller, thus completing the transportation from the rolling and cutting mechanism to the shearing and crushing mechanism. No additional transportation equipment is required, which facilitates the integrated design of multiple recycling devices. The rolling and cutting mechanism and the shearing and crushing mechanism in the integrated recycling device can complete a series of processes from cutting to fine crushing when recycling waste wind turbine blades. The two cooperate with each other to realize one-way transportation, with a high degree of automation and no need for additional transportation equipment, thus saving time and cost and solving the problem of low recycling efficiency when recycling waste wind turbine blades.

[0024] 2. The use of a sorting component in the recovery mechanism of the present invention provides a moving airflow environment, and a mechanical winding and adhesion method is used to separate the two different components (resin particles and reinforcing fibers) of the crushed mixture. The morphological differences of the resin particles and reinforcing fibers to be separated are utilized. In the airflow field, the fine resin particles are separated from the reinforcing fibers, and the reinforcing fibers are wound and attached to the metal wire, thereby completing the preliminary sorting of the resin particles and the reinforcing fibers. The vibration screening of the separation component is then used to further screen and separate the small amount of reinforcing fibers and the large amount of resin particles that were not adhered in the previous step, thereby significantly improving the screening and separation effect of the recovery mechanism. The sorted resin particles and reinforcing fibers can be obtained by using their own suitable recycling processes to obtain high-value recycled products, which is beneficial to saving resources, protecting the environment, and realizing the sustainable development of the wind power industry.

[0025] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of an integrated recycling device for waste wind turbine blades in some embodiments;

[0027] Figure 2 for Figure 1 A magnified view of the structure at center;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the driving assembly in some embodiments;

[0029] Figure 4 is a schematic diagram of a three-dimensional structure of a first driving component in some embodiments;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the separation component in some embodiments;

[0031] Figure 6 A schematic diagram of a three-dimensional structure of a gap adjustment mechanism in some embodiments;

[0032] Figure 7 It is a side cross-sectional view of an integrated recycling device for waste wind turbine blades in some embodiments.

[0033] In the figure: 1. rolling cutting mechanism; 101. active pressure roller; 102. driven pressure roller; 103. annular sawtooth blade; 2. shearing and crushing mechanism; 201. crushing knife chamber; 202. blade; 203. crushing knife roller; 204. arc baffle; 205. knife teeth; 3. recovery mechanism; 301. driven roller; 302. active roller; 303. fan; 304. air outlet; 4. separation component; 401. screen; 402. collection box; 403. shock absorbing spring; 404. vibration screen frame; 405, vibration motor; 5, bracket; 6, gap adjustment mechanism; 601, driving motor; 602, mounting compartment; 603, active bevel gear; 604, driven bevel gear; 605, threaded rod; 606, telescopic plate; 7, tensioning mechanism; 701, adjusting sprocket; 702, fixing plate; 703, telescopic spring; 8, first driving component; 801, driving motor; 802, active sprocket; 803, active spur gear; 804, driven spur gear; 805, driven sprocket; 806, chain. DETAILED DESCRIPTION

[0034] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0035] Reference Figure 1 and Figure 2 As shown, this embodiment provides an integrated recycling device for waste wind turbine blades, and the recycling device includes a bracket 5, a rolling and cutting mechanism 1, a shearing and crushing mechanism 2 and a recycling mechanism.

[0036] The bracket 5 is used to install the rolling and cutting mechanism 1, the shearing and crushing mechanism 2 and the recycling mechanism. The rolling and cutting mechanism 1 is used to reduce the volume of the wind turbine blades to obtain panels of a certain size. The shearing and crushing mechanism 2 is used to further crush the panels to obtain a mixture of resin particles and reinforcing fibers. The recycling mechanism is used to further subdivide the mixture of resin particles and reinforcing fibers.

[0037] The support 5 is a rectangular frame structure, in which a plurality of mounting columns are inserted, and a plurality of legs are arranged below the rectangular frame. The rolling cutting mechanism 1 and the shearing and crushing mechanism 2 are both installed inside the rectangular frame structure and the ends are rotatably installed on the mounting columns, and the recycling mechanism is installed below the rectangular frame structure.

[0038] The rolling and cutting mechanism 1 comprises an active pressure roller 101, a driven pressure roller 102 and two annular serrated blades 103 rotatably mounted on a bracket. The first ends of the active pressure roller 101 and the driven pressure roller 102 are coaxially fixed to the two staggered and fitted annular serrated blades 103 respectively, and the second ends are connected to a driving assembly. The active pressure roller 101 and the driven pressure roller 102 rotate in parallel and in opposite directions, and the gap forms a rolling channel for the wind turbine blades to pass through. The shearing and crushing mechanism 2 includes a crushing blade magazine 201 and a crushing blade roller 203. The crushing blade magazine 201 is fixedly installed on the bracket 5 and is located below the crushing blade roller 203. The crushing blade roller 203 is rotatably installed on the bracket 5 and one end is connected to a driving component. The surface of the crushing blade roller 203 has multiple sets of blades 202. The top of the side of the crushing blade magazine 201 close to the crushing blade roller 203 has multiple sets of blade teeth 205 that cooperate with the multiple sets of blades 202. The gaps between the multiple sets of blades 202 and the multiple sets of blade teeth 205 form a crushing channel for crushing wind turbine blades. The friction force provided by the active pressure roller 101 and the driven pressure roller 102 to the wind turbine blades passing through the rolling channel is directed to the crushing channel.

[0039] The multiple sets of blades 202 and the multiple sets of teeth 205 are evenly distributed along the axial array of the crushing roller 203. The multiple sets of blades 202 and the multiple sets of teeth 205 correspond to each other one by one, and when the crushing roller 203 rotates, each set of blades 202 passes through the corresponding teeth 205 respectively.

[0040] Before using the rolling and cutting mechanism 1, it is necessary to ensure that the upper and lower spacing of the rolling channel is smaller than the thickness of the wind turbine blade and the distance between the crushing channel and the rolling channel is smaller than the width of the wind turbine blade (wind turbine blades of different sizes can be pre-processed by selecting integrated recycling devices for waste wind turbine blades of different sizes). When in use, start the driving component to rotate the active pressure roller 101 and the driven pressure roller 102, and the annular serrated blade 103 coaxially fixed therewith also rotates together. Then, align the waste wind turbine blade with the rolling channel, and make one end of it penetrate into the rolling and cutting mechanism 1 to keep the same length as the axial length of the active pressure roller 101, and then put it into the rolling channel. The waste wind turbine blade will be cut horizontally by the annular serrated blade 103, and the waste wind turbine blade will be cut horizontally by the annular serrated blade 103. When passing through the rolling channel between the active pressure roller 101 and the driven pressure roller 102, it will be further compacted to obtain a plate with a length of 0.5 to 1 m. Each waste wind turbine blade is intermittently fed into the rolling and cutting mechanism 1 starting from the end of the blade at a certain rhythm, and the rolling and cutting action is cyclic until the blade end completes the upper work process. Under the rotation of the active pressure roller 101 and the driven pressure roller 102, a friction force pointing to the crushing channel will be applied to the plate (usually, the friction force is perpendicular to the plane formed by the axes of the active pressure roller 101 and the driven pressure roller 102, so the relative height of the rolling channel and the crushing channel or the posture of the active pressure roller 101 and the driven pressure roller 102 can be adjusted to make the friction force point to the crushing channel), and the plate is pushed into the crushing channel by the friction force. In the shearing and crushing mechanism 2, the plate will pass through the upper surface of the crushing blade chamber 201, and then will be crushed by the rotating crushing blade roller 203. With the cooperation of multiple sets of blades 202 and teeth 205, the plate will be further crushed to obtain a mixture of resin particles and reinforcing fibers.

[0041] The rolling and cutting mechanism 1 can compact and cut large-volume waste wind turbine blades into multiple small panels. The splitting process can effectively reduce the size of the equipment, and the compacted panels can be transported from the rolling channel to the crushing channel through the friction provided by the rotation of the active pressure roller 101 and the driven pressure roller 102, thus completing the transportation from the rolling and cutting mechanism 1 to the shearing and crushing mechanism 2. No additional transportation equipment is required, which facilitates the integrated design of multiple recycling devices. The rolling and cutting mechanism 1 and the shearing and crushing mechanism 2 in the integrated recycling device can complete a series of processes from cutting to crushing when recycling waste wind turbine blades. The two cooperate with each other to realize one-way transportation, with a high degree of automation and no need for additional transportation equipment, saving time and cost, and solving the problem of low recycling efficiency when recycling waste wind turbine blades.

[0042] Furthermore, in order to ensure the fineness of the plate, in this embodiment, reference is made to Figure 7As shown, an arc baffle 204 is fixedly mounted on the bracket 5, and the crushing knife roller 203 is located inside the arc baffle 204. The radius of the arc baffle 204 is slightly larger than the radius of the crushing knife roller 203 plus the length of the blade 202. The arc baffle 204 plays a certain blocking effect in the shearing and crushing mechanism 2, preventing the incompletely crushed plate fragments from entering the sorting component 3 in advance along with the high-speed rotating crushing knife roller 203, thereby improving the degree of fine crushing of the plate.

[0043] The recycling mechanism includes a sorting component 3 and a separation component 4. The recycling mechanism is fixedly mounted on a bracket 5. The shearing and crushing mechanism 2 is located between the rolling and cutting mechanism 1 and the recycling mechanism. The sorting component 3 and the separation component 4 are used to further subdivide the mixture of the resin particles and the reinforcing fibers.

[0044] Reference Figure 1 and Figure 7 As shown, in this embodiment, the sorting component 3 includes an active roller 302, a driven roller 301, a fan 303 and multiple groups of sorting blades. One end of the active roller 302 and the driven roller 301 are connected to a driving component to drive their own rotation. The fan 303 is fixedly installed at the bottom of the bracket 5. The side wall of the crushing knife chamber 201 is provided with a blowing port 304, and the blowing port 304 is connected to the output port of the fan 303. The wind direction is from the crushing knife roller 203 to the active roller 302, and the multiple groups of sorting blades are evenly distributed on the active roller 302 and the driven roller 301. The fan 303 is started, and the wind force of the fan 303 is used to send the mixture of resin particles and reinforcing fibers from the blowing port 304 to the sorting part. For example, the reinforcing fibers can be glass fibers, wood fibers and other materials, and the resin can be thermosetting resins such as epoxy resins and phenolic resins, or high-performance thermoplastic resins. Because there is a difference in the density of the resin particles and the reinforcing fibers, they are separated from each other under the action of airflow sorting. The reinforcing fibers will move upward and encounter the active roller 302 and the driven roller 301. Then, when the active roller 302 and the driven roller 301 rotate, the filamentary fibers will be wound around the sorting blades on their surfaces, and the resin particles will fall into the separation component 4 because their density is greater than that of the reinforcing fibers, thus completing the preliminary separation. Further, in order to ensure the adhesion of the sorting blades to the filamentary fibers, each group of sorting blades includes a plurality of arc-shaped metal wires, and the plurality of arc-shaped metal wires are respectively distributed in a circular pattern on the active roller 302 and the driven roller 301. By arranging arc-shaped metal wires in a circle, the arrangement density of each group of sorting blades is increased, thereby improving the adhesion of the sorting blades to the filamentous fibers.

[0045] Reference Figure 5As shown, in this embodiment, the separation component 4 includes a screen 401, a collection box 402, four shock-absorbing springs 403, a vibrating screen frame 404 and two vibration motors 405. The separation component 4 is located directly below the sorting component. The first ends of the four shock-absorbing springs 403 are fixedly connected to the vibrating screen frame 404, and the second ends are fixedly connected to the collection box 402. The screen 401 is fixedly installed on the upper surface of the collection box 402, and the two vibration motors 405 are fixedly installed on the side walls of the collection box 402. After the initial separation by the sorting component 3, a small amount of filamentous fibers still fall on the screen 401 together with the resin particles. At this time, the vibration motor 405 is turned on to drive the vibrating screen frame 404 and the collecting box 402 to start vibrating together. The four shock-absorbing springs 403 are used to provide a certain buffering effect. Finally, under the effect of vibration, the smaller resin particles will enter the inside of the collecting box 402 from the mesh of the screen 401, while the longer filamentous fibers will stay on the surface of the screen 401, and the small amount of filamentous fibers and the large amount of resin particles on the screen will be separated for the second time to complete the final sorting and separation.

[0046] Further, see Figure 7 As shown, the axis of the active roller 101 is at the same height as the axis of the active roller 302, the axis of the driven roller 102 is at the same height as the axis of the driven roller 301, and the active roller 101 and the active roller 302 are symmetrically distributed on both sides of the crushing roller 203. The rolling and cutting mechanism 1 and the sorting assembly 3 are symmetrically distributed around the shearing and crushing mechanism 3, and the installation space of the bracket 5 is reasonably utilized, so that the internal arrangement of the device is compact, which is convenient for mass production and installation.

[0047] In order to adjust the upper and lower spacing of the rolling channel at any time, in this embodiment, refer to Figure 1 and Figure 6As shown, a pair of gap adjustment mechanisms 6 are provided to adjust the gap between the active pressure roller 101 and the driven pressure roller 102. Each gap adjustment mechanism 6 includes a servo motor 601, a mounting bin 602, an active bevel gear 603, a driven bevel gear 604, a threaded rod 605 and a telescopic plate 606. The servo motor 601 and the mounting bin 602 are both fixedly mounted on the bracket 5. The interior of the mounting bin 602 is divided into an upper half and a lower half by a partition plate. The output shaft of the servo motor 601 passes through the side wall of the upper half of the mounting bin 602 and is coaxially fixed with the active bevel gear 603. The driven bevel gear 604 is rotatably mounted on the partition plate. The first end of the threaded rod 605 passes through the partition plate and is coaxially fixed with the driven bevel gear 604. The telescopic plate 606 is slidably mounted on the lower half of the mounting bin 602. A threaded hole is provided inside the telescopic plate 606. The second end of the threaded rod 605 is threadedly mounted in the threaded hole. One end of the telescopic plate 606 is rotatably sleeved on the driven pressure roller 102. The gap adjustment mechanism 6 is arranged on the top of the bracket 5. When the servo motor 601 is started, its output shaft will drive the driven bevel gear 604 to rotate through the active bevel gear 603. The rotation of the driven bevel gear 604 will drive the threaded rod 605 to rotate, so as to control the length of the telescopic plate 606 threadedly mounted thereon to extend out of the mounting bin 602, so that the driven pressure roller 102 rotatably mounted at the other end of the telescopic plate 606 can complete the vertical movement, thereby adjusting the gap between the active pressure roller 101 and the driven pressure roller 102, thereby changing the upper and lower spacing of the rolling channel.

[0048] Reference Figure 1 and Figure 3As shown, in this embodiment, the driving assembly includes a first driving component 8, a second driving component and a third driving component fixedly mounted on the bracket 5, the first driving component 8 is used to drive the active pressure roller 101 and the driven pressure roller 102 to rotate, the second driving component is used to drive the crushing knife roller 203 to rotate, and the third driving component is used to drive the active roller 302 and the driven roller 301 to rotate. In order to ensure the stability of the operation of the rolling and cutting mechanism 1, the shearing and crushing mechanism 2 and the sorting component 3, they are controlled separately by the first, second and third driving components, and the operation speed of different mechanisms can be freely changed by adjusting different driving components. Furthermore, the first driving component 8 includes a driving motor 801, a driving sprocket 802, a driving spur gear 803, a driven spur gear 804, a driven sprocket 805 and a chain 806. The output shaft of the driving motor 801 is coaxially fixed with the driving sprocket 802 and the driving spur gear 803, the driven spur gear 804 is coaxially fixed with the driving pressure roller 101, the driving spur gear 803 and the driven spur gear 804 are meshed, the driven sprocket 805 is coaxially fixed with the driven pressure roller 102, and the chain 806 is meshed and wound between the driving sprocket 802 and the driven sprocket 805. By controlling the rotation of the driving motor 801, the driving sprocket 802 and the driving spur gear 803 are driven to rotate, and the driving spur gear 803 drives the driving pressure roller 101 to rotate through the driven spur gear 804, and the driving sprocket 802 drives the driven sprocket 805 to rotate through the chain 806, thereby driving the driven pressure roller 102 to rotate, and because the output source is unified, the rotation speed of the driving pressure roller 101 and the driven pressure roller 102 is the same, because the chain 806 transmission keeps the same rotation direction as the output source, and the gear transmission is opposite to the output source, so the rotation direction of the driving pressure roller 101 and the driven pressure roller 102 is opposite.

[0049] Further, in order to ensure the stability of the transmission of the first driving component 8, in this embodiment, referring to Figure 4As shown, a sprocket tensioning component 7 is provided in the first driving component 8, and the sprocket tensioning component 7 includes an adjusting sprocket 701, a fixing plate 702, a spring rod 703 and a slider. The fixing plate 702 is fixedly mounted on the bracket 5, and a slide groove is provided on the fixing plate 702. A spring rod 703 is fixedly mounted in the slide groove. The first end of the spring rod 703 is fixedly connected to the side wall of the slide groove, and the second end is fixedly connected to the slider. The adjusting sprocket 701 is rotatably mounted on the slider, and the adjusting sprocket 701 is meshed with the chain 806. In the initial state, the tensioning force of the chain 806 and the elastic potential energy of the spring rod 703 are in a balanced state. When the gap adjustment mechanism 6 controls the vertical movement of the driven pressure roller 102, the driven sprocket 805 will also move vertically together. If it moves upward, under the action of the tensioning force of the chain 806, a certain tensioning force will be applied to the adjusting sprocket 701 so that the slider connected to it compresses the spring rod 703 and moves horizontally along the slide groove until the tensioning force of the chain 806 and the elastic potential of the spring rod 703 reach a balanced state again. If it moves downward, the spring rod 703 will release the elastic potential energy, and the slider will carry the adjusting sprocket 701 to move in the opposite direction along the slide groove, so that the chain 806 is tensioned and reaches a balanced state with the elastic potential energy of the spring rod 703, thereby maintaining the stability of the transmission of the first driving component 8.

[0050] The rolling and cutting mechanism 1 of the present invention can compact and cut large-volume waste wind turbine blades into multiple small panels. The splitting process can effectively reduce the size of the equipment, and the compacted panels can be transported from the rolling channel to the crushing channel through the friction provided by the rotation of the active pressure roller 101 and the driven pressure roller 102, thereby completing the transportation from the rolling and cutting mechanism 1 to the shearing and crushing mechanism 2. No additional transportation equipment is required, which facilitates the integrated design of multiple recycling devices. The rolling and cutting mechanism 1 and the shearing and crushing mechanism 2 in the integrated recycling device can complete a series of processes from cutting to fine crushing when recycling waste wind turbine blades. The two cooperate with each other to realize one-way transportation, with a high degree of automation and no need for additional transportation equipment, saving time and cost, and solving the problem of low recycling efficiency when recycling waste wind turbine blades.

[0051] Furthermore, the recycling mechanism of the present invention uses a sorting component 3 to provide a moving airflow environment, and adopts a mechanical winding and adhesion method to separate the two different components (resin particles and reinforcing fibers) of the crushed mixture. By utilizing the morphological differences of the resin particles and reinforcing fibers to be separated, the fine resin particles are separated from the reinforcing fibers in the moving airflow field, and the reinforcing fibers are wound and attached to the metal wire, thereby completing the preliminary sorting of the resin particles and the reinforcing fibers. The vibration screening of the separation component 4 is then used to further screen and separate the small amount of reinforcing fibers and the large amount of resin particles that were not adhered in the previous step, thereby significantly improving the screening and separation effect of the recycling mechanism. The sorted resin particles and reinforcing fibers can be obtained by using their own suitable recycling processes to obtain high-value recycled products, which is beneficial to saving resources, protecting the environment, and realizing the sustainable development of the wind power industry.

[0052] With respect to the integrated recycling device for waste wind turbine blades in the above embodiment, a specific method for using the device is provided as follows.

[0053] 1. Compacting and cutting: Start the driving assembly to rotate the active roller 101 and the driven roller 102, and the annular serrated blade 103 coaxially fixed therewith also rotates together. Then align the waste wind turbine blade with the rolling channel, and make one end of it penetrate into the rolling and cutting mechanism 1 to keep the same length as the axial length of the active roller 101, and then put it into the rolling channel. The waste wind turbine blade will be cut horizontally by the annular serrated blade 103, and will be further compacted when passing through the rolling channel between the active roller 101 and the driven roller 102 to obtain a plate with a length of 0.5 to 1 m. Each waste wind turbine blade is intermittently fed into the rolling and cutting mechanism 1 starting from the end of the blade at a certain beat, and the rolling and cutting action is circulated until the blade end completes the upper work process.

[0054] 3. Crushing: When the active roller 101 and the driven roller 102 rotate, a friction force pointing to the crushing channel is applied to the plate (usually, the friction force is perpendicular to the plane formed by the axes of the active roller 101 and the driven roller 102, so the relative height of the rolling channel and the crushing channel or the posture of the active roller 101 and the driven roller 102 can be adjusted to make the friction force point to the crushing channel), and the plate is pushed into the crushing channel by the friction force. In the shearing and crushing mechanism 2, the plate will pass through the upper surface of the crushing knife chamber 201, and then will be crushed by the rotating crushing knife roller 203. With the cooperation of multiple sets of blades 202 and teeth 205, the plate is further crushed to obtain a mixture of resin particles and reinforcing fibers.

[0055] 4. Sorting: Start the fan 303, and use the wind power of the fan 303 to send the mixture of resin particles and reinforcing fibers from the blowing port 304 to the sorting part. For example, the reinforcing fibers can be glass fibers, wood fibers and other materials, and the resin can be thermosetting resins such as epoxy resins and phenolic resins, or high-performance thermoplastic resins. Because there is a difference in density between the resin particles and the reinforcing fibers, they are separated from each other under the action of airflow sorting. The reinforcing fibers will move to a higher place and encounter the active roller 302 and the driven roller 301. Then, when the active roller 302 and the driven roller 301 rotate, the filamentous fibers will be wound around the sorting blades on their surfaces, and the resin particles will fall into the separation component 4 because their density is greater than that of the reinforcing fibers, thus completing the preliminary separation.

[0056] 5. Separation: Turn on the vibration motor 405 to drive the vibrating screen frame 404 and the collecting box 402 to start vibrating together. The four shock-absorbing springs 403 are used to provide a certain buffering effect. Finally, under the vibration effect, the smaller resin particles will enter the inside of the collecting box 402 from the mesh of the screen 401, while the longer filamentous fibers will remain on the surface of the screen 401. The small amount of filamentous fibers and the large amount of resin particles on the screen are separated for the second time to complete the final sorting and separation.

[0057] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0058] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

Claims

1. An integrated recycling device for waste wind turbine blades, characterized in that: The recovery device includes: Bracket (5); A rolling and cutting mechanism (1) comprises an active pressure roller (101), a driven pressure roller (102) and two annular sawtooth blades (103) rotatably mounted on a bracket, the first ends of the active pressure roller (101) and the driven pressure roller (102) being coaxially fixed to the two staggered and fitted annular sawtooth blades (103) and the second ends of both being connected to a driving assembly, the active pressure roller (101) and the driven pressure roller (102) rotating in parallel and in opposite directions and a gap forming a rolling channel for wind turbine blades to pass through; A shearing and crushing mechanism (2) comprises a crushing blade chamber (201) and a crushing blade roller (203); the crushing blade chamber (201) is fixedly mounted on a bracket (5) and is located below the crushing blade roller (203); the crushing blade roller (203) is rotatably mounted on the bracket (5) and one end of the crushing blade roller (203) is connected to a driving assembly; a surface of the crushing blade roller (203) has a plurality of blade groups (202); a top portion of a side surface of the crushing blade chamber (201) close to the crushing blade roller (203) has a plurality of blade teeth (205) matched with the plurality of blade groups (202); gaps between the plurality of blade groups (202) and the plurality of blade teeth (205) form a crushing channel for crushing wind turbine blades; and the friction force provided by the active pressure roller (101) and the driven pressure roller (102) to the wind turbine blades passing through the rolling channel is directed toward the crushing channel; The recovery mechanism is fixedly mounted on the bracket (5) and is used to recover the wind turbine blades that have been crushed by the crushing channel.

2. The integrated recycling device for waste wind turbine blades according to claim 1 is characterized in that: The recycling mechanism comprises a sorting component (3) and a separation component (4); The sorting component (3) comprises an active roller (302), a driven roller (301) and a fan (303); one end of the active roller (302) and the driven roller (301) are connected to a driving component; the fan (303) is fixedly mounted on the bottom of the bracket (5); a blowing port (304) is provided on the side of the crushing blade chamber (201) close to the crushing blade roller (203); the blowing port (304) is connected to the output port of the fan (303); the wind direction is from the crushing blade roller (203) to the active roller (302); and the surfaces of the active roller (302) and the driven roller (301) are provided with a plurality of groups of sorting blades.

3. The integrated recycling device for waste wind turbine blades according to claim 2 is characterized in that: The separation assembly (4) comprises a screen (401), a collection box (402), four shock absorbing springs (403), a vibration screen frame (404) and two vibration motors (405); the screen (401) is located directly below the active roller (302); the first ends of the four shock absorbing springs (403) are fixedly connected to the upper surface of the vibration screen frame (404) and the second ends are fixedly connected to the lower surface of the collection box (402); the screen (401) is fixedly mounted on the upper surface of the collection box (402); the two vibration motors (405) are fixedly mounted on the side walls of the collection box (402); and the vibration screen frame (404) is fixedly mounted on the bracket (5).

4. The integrated recycling device for waste wind turbine blades according to claim 1 is characterized in that: The recovery device also includes: a pair of gap adjustment mechanisms (6); Each gap adjustment mechanism (6) comprises a servo motor (601), a mounting chamber (602), a driving bevel gear (603), a driven bevel gear (604), a threaded rod (605) and a telescopic plate (606); the servo motor (601) and the mounting chamber (602) are both fixedly mounted on a bracket (5); the interior of the mounting chamber (602) is divided into an upper half and a lower half by a partition plate; an output shaft of the servo motor (601) passes through a side wall of the upper half of the mounting chamber (602) and The driven bevel gear (604) is rotatably mounted on the partition plate and is coaxially fixed with the active bevel gear (603). The first end of the threaded rod (605) passes through the partition plate and is coaxially fixed with the driven bevel gear (604). The telescopic plate (606) is slidably mounted on the lower half of the mounting bin (602). A threaded hole is provided inside the telescopic plate (606). The second end of the threaded rod (605) is threadedly mounted in the threaded hole. The bottom end of the telescopic plate (606) is rotatably sleeved on the driven pressure roller (102).

5. The integrated recycling device for waste wind turbine blades according to claim 2 is characterized in that: The driving assembly comprises a first driving component (8), a second driving component and a third driving component fixedly mounted on a bracket (5); the first driving component (8) is used to drive the active pressure roller (101) and the driven pressure roller (102) to rotate; the second driving component is used to drive the crushing knife roller (203) to rotate; and the third driving component is used to drive the active roller (302) and the driven roller (301) to rotate.

6. The integrated recycling device for waste wind turbine blades according to claim 5 is characterized in that: The first driving component (8) comprises a driving motor (801), a driving sprocket (802), a driving spur gear (803), a driven spur gear (804), a driven sprocket (805) and a chain (806); the output shaft of the driving motor (801) is coaxially fixed with the driving sprocket (802) and the driving spur gear (803); the driven spur gear (804) is coaxially fixed with the driving pressure roller (101); the driving spur gear (803) and the driven spur gear (804) are meshed; the driven sprocket (805) is coaxially fixed with the driven pressure roller (102); and the chain (806) is meshed and wound between the driving sprocket (802) and the driven sprocket (805).

7. The integrated recycling device for waste wind turbine blades according to claim 6 is characterized in that: A sprocket tensioning component (7) is provided in the first driving component (8), and the sprocket tensioning component (7) comprises an adjusting sprocket (701), a fixing plate (702), a spring rod (703) and a sliding block. The fixing plate (702) is fixedly mounted on the bracket (5), a sliding groove is provided on the fixing plate (702), and a spring rod (703) is fixedly mounted in the sliding groove. A first end of the spring rod (703) is fixedly connected to a side wall of the sliding groove, and a second end is fixedly connected to the sliding block. The adjusting sprocket (701) is rotatably mounted on the sliding block, and the adjusting sprocket (701) is meshed with a chain (806).

8. The integrated recycling device for waste wind turbine blades according to claim 2 is characterized in that: The axis of the active pressure roller (101) and the axis of the active roller (302) are at the same height, the axis of the driven pressure roller (102) and the axis of the driven roller (301) are at the same height, and the active pressure roller (101) and the active roller (302) are symmetrically distributed on both sides of the crushing knife roller (203).

9. The integrated recycling device for waste wind turbine blades according to claim 2 is characterized in that: Each group of sorting blades comprises a plurality of arc-shaped metal wires, and the plurality of arc-shaped metal wires are respectively distributed in a circumferential manner on the active roller (302) and the driven roller (301).

10. The integrated recycling device for waste wind turbine blades according to claim 1 is characterized in that: An arc-shaped baffle plate (204) concentric with the crushing blade roller (203) is fixedly mounted on the bracket (5), and the crushing blade roller (203) is located on the inner side of the arc-shaped baffle plate (204).

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