A waste wind turbine blade recycling and crushing device

Abstract

The present invention relates to the technical field of fan recycling, and particularly relates to a recycling and crushing device for waste fan blades, which is used for crushing the blade segments after cutting waste fan blades. It includes a support assembly, a flipping assembly and a crushing assembly. The support assembly includes an upper shell and a lower shell fixedly connected. The flipping assembly is connected to the upper shell, and the crushing assembly is connected to the lower shell. Liquid nitrogen tanks are arranged on both sides of the upper surface of the upper shell, and the liquid nitrogen tanks are communicated with the nozzles inside the upper shell through pipelines. The flipping assembly includes a flipping plate and two clamping plates. The two clamping plates are symmetrically and slidably arranged on the flipping plate, and the blade segment is located between the two clamping plates. The crushing assembly includes two oppositely arranged buffer plates and two oppositely rotating crushing rollers, and the crushing rollers are located below the buffer plates. In the present invention, the blade segments are frozen by liquid nitrogen, making them easier to be crushed by the machine. The provided flipping assembly can clamp and flip the blade segments to be frozen, saving manpower.

Description

Technical Field

[0001] The present invention relates to the technical field of fan recycling, and particularly to a recycling and crushing device for waste fan blades. Background Art

[0002] Waste fan blades usually contain fiber reinforced materials, plastic polymers, sandwich materials and coatings. These materials are difficult to degrade in the natural environment. Landfill treatment will lead to land occupation and environmental pollution, while incineration will generate harmful gases, exacerbating air pollution. The realization of comprehensive utilization of blade recycling can not only solve the above problems, but also recycle these materials for reuse in manufacturing new products, reducing the demand for primary resources. At the same time, recycling waste fan blades can reduce production costs and improve resource utilization efficiency. By crushing the blades into particles, they can be used as fuel for cement kilns or concrete aggregates. After crushing, glass fibers or carbon fibers can be separated by mechanical screening or chemical treatment, and the recycled fibers can be used for automotive parts, building materials or 3D printing consumables. The resin matrix after crushing generates oil and gas through pyrolysis or extracts epoxy resin through chemical dissolution.

[0003] Existing waste fan blades need to be cut before crushing. However, the area of the cut blade parts is still relatively large. If the entry angle is inappropriate during the process of putting them into the crushing device, it will affect the crushing process and additional manual adjustment is required, consuming manpower. Moreover, the material of the fan blades is tough. Directly using a crusher to crush untreated fan blades is likely to cause significant wear to the crushing tools, greatly reducing the service life of the crusher. Whether it is subsequent equipment maintenance or replacing the crushing tools, it is rather troublesome. Summary of the Invention

[0004] The purpose of the present invention is to provide a recycling and crushing device for waste fan blades to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A recycling and crushing device for waste fan blades, used for crushing the blade segments after cutting waste fan blades, includes a support assembly, a flipping assembly and a crushing assembly. The support assembly includes an upper housing and a lower housing fixedly connected. The flipping assembly is connected to the upper housing, and the crushing assembly is connected to the lower housing. Liquid nitrogen tanks are arranged on both sides of the upper surface of the upper housing, and the liquid nitrogen tanks are communicated with the nozzles inside the upper housing through pipelines. The flipping assembly includes a flipping plate and two clamping plates. The flipping plate is rotatably connected to the inner wall of the upper housing, and the two clamping plates are symmetrically slidably arranged on the flipping plate. The blade segment is located between the two clamping plates. The crushing assembly includes two oppositely arranged buffer plates and two oppositely rotating crushing rollers. The crushing rollers are located below the buffer plates. When the clamping plates are in a horizontal state, the nozzles face the inner sides of the two clamping plates. When the clamping plates are in a vertical state, the inside of the upper housing is communicated with the inside of the lower housing.

[0006] Further, a conveying groove is formed at one end of the upper housing, and the blade section enters the interior of the upper housing through the conveying groove. Two centrally symmetric arc-shaped grooves are formed on the surface of the end of the interior of the upper housing away from the conveying groove. The clamping plate is located on the side of the turning plate close to the conveying groove. Two limiting plates are symmetrically arranged on the side of the turning plate away from the conveying groove. A limiting block is fixedly arranged at the end of the limiting plate, and the limiting block is slidably connected with the corresponding arc-shaped groove.

[0007] Further, a connecting shaft is rotatably arranged on the inner wall of one end of the upper housing. A first positioning plate and a second positioning plate are respectively fixedly arranged at both ends of the connecting shaft. The first positioning plate and the second positioning plate are respectively located inside and outside the upper housing. The first positioning plate is fixedly connected with the limiting plate. A clamping hydraulic cylinder is arranged in the middle of the surface of the second positioning plate. The piston rod of the clamping hydraulic cylinder penetrates through the connecting shaft and extends into the interior of the upper housing. A driving block is fixedly arranged at the end of the piston rod of the clamping hydraulic cylinder. The end of the driving block is movably connected with the clamping plate through a connecting rod.

[0008] Further, the buffer plate is slidably arranged inside the lower housing. A plurality of buffer hydraulic cylinders are arranged at intervals on the surfaces of both ends inside the lower housing. The piston rod ends of the buffer hydraulic cylinders are fixedly connected with the corresponding buffer plates. A plurality of groups of buffer columns are arranged on the surface of the buffer plate away from the buffer hydraulic cylinders. The plurality of groups of buffer columns are arranged at intervals along the length direction of the buffer plate. The length of each group of buffer columns increases sequentially from top to bottom. The buffer columns are made of elastic materials.

[0009] Further, two turning hydraulic cylinders are rotatably arranged on the outer surface of the end of the upper housing away from the conveying groove. The two turning hydraulic cylinders are centrally symmetric about the connecting hole. Curved rods are fixedly arranged at both ends of the second positioning plate. A connecting column is fixedly arranged at the end of the curved rod. The piston rod end of the turning hydraulic cylinder is rotatably connected with the connecting column.

[0010] Further, a baffle is slidably arranged in the conveying groove. Two fixing blocks are arranged at intervals on both sides of the conveying groove. A lifting lead screw is rotatably arranged between the two fixing blocks on one side, and a lifting slide rod is fixedly arranged between the two fixing blocks on the other side. One end of the lower part of the baffle is threadedly connected with the lifting lead screw, and the other end is slidably connected with the lifting slide rod. A lifting motor is arranged on the upper surface of the fixing block provided with the lifting lead screw. The output shaft end of the lifting motor is fixedly connected with the lifting lead screw.

[0011] Further, a material-passing hole is formed through the middle of the lower surface inside the upper housing. Opening and closing plates are slidably arranged on both sides of the lower part of the material-passing hole. The two opening and closing plates are inserted or separated through a convex plate and a sealing groove. When the two opening and closing plates are inserted, the interior of the upper housing is not communicated with the interior of the lower housing. When the two opening and closing plates are separated, the interior of the upper housing is communicated with the interior of the lower housing.

[0012] Further, two support blocks are spaced apart on one side of the lower surface of the upper housing. An opening and closing screw rod is rotatably arranged between the two support blocks. The threads at both ends of the opening and closing screw rod are opposite. A connecting block is fixedly arranged at one end of the opening and closing plate close to the support block. The connecting block is threadedly connected to the opening and closing screw rod. An opening and closing motor is arranged on the outer surface of one of the support blocks. The end of the output shaft of the opening and closing motor is fixedly connected to the opening and closing screw rod.

[0013] Further, a support frame is fixedly arranged on the outer surface of one side of the lower part of the lower housing. A crushing motor is arranged outside the support frame. A rotating shaft is fixedly penetrated through the middle of the crushing roller. The rotating shaft is rotatably connected to the lower housing. One end of the rotating shaft penetrates through the lower housing and is connected to the output shaft of the crushing motor through a belt drive.

[0014] Further, a discharge hole is arranged at the lower end of the lower housing. The lower end of the discharge hole is connected to a pneumatic crusher. The lower end of the pneumatic crusher is provided with a discharge port. The conveying trough is communicated with the discharge port through the upper housing, the lower housing, the discharge hole and the pneumatic crusher.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A waste fan blade recycling and crushing device provided by the present invention first freezes the blade segments through the provided liquid nitrogen tank, making the blade structure brittle and easier to be broken by the machine, extending the service life of the crushing roller. The provided flipping assembly can not only clamp the blade segments to be frozen, but also drive the blade segments to adjust the angle through the flipping hydraulic cylinder, and cooperate with the buffer plate to more conveniently carry out the crushing work on the blade segments, without manual adjustment, saving manpower.

[0017] 2. A waste fan blade recycling and crushing device provided by the present invention is provided with multiple groups of buffer columns with gradually increasing lengths on the surfaces of the oppositely arranged buffer plates. It can not only slow down the speed of the blade segments when falling into the lower housing, but also play a clamping role, making the blade segments slowly contact the crushing roller, avoiding impact on the crushing roller due to excessive falling speed.

[0018] 3. A waste fan blade recycling and crushing device provided by the present invention is provided with a clamping plate slidably connected to a flipping plate and connected to the piston rod of a clamping hydraulic cylinder through a connecting rod. The rotatably arranged connecting shaft drives the flipping plate to realize angle adjustment. The clamping hydraulic cylinder drives the clamping plate to move bidirectionally through the connecting rod, and cooperates with the opening and closing plate to realize the transfer work of the blade segments, reducing manual operation and ensuring that the blade segments enter the crushing area at a suitable angle.

[0019] 4. The waste fan blade recycling and crushing device provided by the present invention is provided with a baffle and a opening and closing plate, which can isolate the inside of the upper housing from the outside world. The opening and closing plate can isolate the upper housing from the lower housing, ensuring the sealing performance and improving the freezing efficiency. The air flow crusher and the crushing roller can perform multiple crushing operations on the blade segments, achieving a better crushing effect. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present invention;

[0021] Figure 2 It is a schematic disassembled structural diagram of the upper housing of the present invention;

[0022] Figure 3 It is a schematic structural diagram of another perspective of the present invention;

[0023] Figure 4 It is a schematic semi-sectional structural diagram of the upper housing of the present invention;

[0024] Figure 5 It is a schematic disassembled structural diagram of the flipping component of the present invention;

[0025] Figure 6 It is a schematic sectional structural diagram of the upper housing of the present invention;

[0026] Figure 7 It is a schematic sectional structural diagram of the lower housing of the present invention;

[0027] Figure 8 It is a schematic partially disassembled structural diagram of the lower housing of the present invention;

[0028] Figure 9 It is a schematic partially semi-sectional structural diagram of the lower housing of the present invention.

[0029] In the figure: 1. Support component; 11. Upper housing; 111. Arc-shaped groove; 112. Connection hole; 113. Material-passing hole; 114. Slide groove; 115. Conveyor groove; 12. Lower housing; 121. Groove; 122. Support frame; 123. Discharge hole; 13. Lifting motor; 131. Fixed block; 132. Lifting screw rod; 133. Lifting slide rod; 14. Baffle; 141. Bottom plate; 15. Opening and closing motor; 151. Support block; 152. Opening and closing screw rod; 16. Opening and closing plate; 161. Convex plate; 162. Sealing groove; 163. Slide block; 164. Connection block; 17. Exhaust pipeline; 2. Flipping component; 21. Clamping plate; 211. T-shaped block; 212. Connection seat; 22. Flipping plate; 221. Avoidance hole; 222. Accommodation hole; 223. Limiting plate; 224. Limiting block; 23. Connection shaft; 231. First positioning plate; 232. Second positioning plate; 233. Curved rod; 234. Connection column; 24. Clamping hydraulic cylinder; 241. Driving block; 25. Connecting rod; 26. Fixed seat; 27. Flipping hydraulic cylinder; 3. Crushing component; 31. Crushing motor; 312. First driving wheel; 313. Second driving wheel; 32. Crushing roller; 321. Rotating shaft; 33. Buffer hydraulic cylinder; 34. Buffer plate; 341. Convex block; 342. Buffer column; 35. Airflow crusher; 351. Feed inlet; 352. Discharge outlet; 4. Liquid nitrogen tank; 41. Nozzle; 5. Conveyor belt. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0031] In the following description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. The term "connection" only represents the connection between devices and has no special meaning.

[0032] In addition, as long as there is no conflict between the technical fields and installation methods involved in the embodiments of the present invention described below, they can be combined with each other.

[0033] Specific embodiment: Please refer to Figures 1-9, a waste wind turbine blade recycling and crushing device for crushing the blade segments after cutting waste wind turbine blades, comprising a support assembly 1, a flipping assembly 2 and a crushing assembly 3. The support assembly 1 includes an upper housing 11 and a lower housing 12 fixedly connected. The flipping assembly 2 is connected to the upper housing 11, and the crushing assembly 3 is connected to the lower housing 12. On both sides of the upper surface of the upper housing 11, liquid nitrogen tanks 4 are provided. The liquid nitrogen tanks 4 are communicated with nozzles 41 inside the upper housing 11 through pipelines. The flipping assembly 2 includes a flipping plate 22 and two clamping plates 21. The flipping plate 22 is rotatably connected to the inner wall of the upper housing 11. The two clamping plates 21 are symmetrically slidably arranged on the flipping plate 22. The clamping plates 21 are perpendicular to the flipping plate 22. The blade segments are located between the two clamping plates 21. The crushing assembly 3 includes two oppositely arranged buffer plates 34 and two oppositely rotating crushing rollers 32. The crushing rollers 32 are located below the buffer plates 34. When the clamping plates 21 are in a horizontal state, the nozzles 41 face the inner sides of the two clamping plates 21. When the clamping plates 21 are in a vertical state, the inside of the upper housing 11 is communicated with the inside of the lower housing 12. On one side of the upper surface of the upper housing 11, an exhaust pipeline 17 is provided. One end of the exhaust pipeline 17 is communicated with the inside of the upper housing 11, and the other end is connected to an air extraction device outside the support assembly 1. Preferably, the liquid nitrogen tanks 4 and the nozzles 41 and other refrigeration devices can be replaced with a cascade compression refrigeration system according to actual needs.

[0034] Furthermore, a conveying groove 115 is opened at one end of the upper housing 11. A conveyor belt 5 is arranged outside the upper housing 11 near the conveying groove 115. The blade segments enter the inside of the upper housing 11 through the conveying groove 115 by the conveyor belt 5. On the surface of the end of the inside of the upper housing 11 far from the conveying groove 115, two centrally symmetric arc-shaped grooves 111 are opened. The clamping plates 21 are located on the side of the flipping plate 22 close to the conveying groove 115. On the side of the flipping plate 22 far from the conveying groove 115, two limiting plates 223 are symmetrically arranged. At the end of the limiting plate 223, a limiting block 224 is fixedly arranged. The limiting block 224 is slidably connected to the corresponding arc-shaped groove 111. On both sides of the surface of the flipping plate 22, a plurality of accommodating holes 222 are symmetrically penetrated. On both sides of the surface of the end of the clamping plate 21 far from the conveying groove 115, T-shaped blocks 211 are fixedly arranged. The T-shaped blocks 211 pass through the corresponding accommodating holes 222 and are slidably connected to the surface of the flipping plate 22. The arranged limiting blocks 224 can support the flipping plate 22 and prevent the flipping plate 22 from shifting during rotation.

[0035] Furthermore, a connecting hole 112 is provided between the two arc-shaped grooves 111. The connecting hole 112 penetrates through the inner wall of the upper shell 11. A connecting shaft 23 is rotatably arranged in the connecting hole 112. A first positioning plate 231 and a second positioning plate 232 are respectively and fixedly arranged at both ends of the connecting shaft 23. The first positioning plate 231 and the second positioning plate 232 are respectively located inside and outside the upper shell 11. The first positioning plate 231 is fixedly connected to the limiting plate 223. A clamping hydraulic cylinder 24 is arranged in the middle of the surface of the second positioning plate 232. The piston rod of the clamping hydraulic cylinder 24 penetrates through the connecting shaft 23 and extends towards the inside of the upper shell 11. A driving block 241 is fixedly arranged at the end of the piston rod of the clamping hydraulic cylinder 24. A connecting seat 212 is arranged between the two T-shaped blocks 211 on the clamping plate 21. An avoidance hole 221 is formed through between the plurality of receiving holes 222 on the same side of the turning plate 22. The connecting seat 212 is located in the avoidance hole 221. Both ends of the driving block 241 are respectively and movably connected to the corresponding connecting seat 212 through connecting rods 25. The arranged clamping plate 21 is slidably connected to the turning plate 22 and is connected to the piston rod of the clamping hydraulic cylinder 24 through the connecting rod 25. The rotatably arranged connecting shaft 23 drives the turning plate 22 to realize angle adjustment. The clamping hydraulic cylinder 24 drives the clamping plate 21 to realize bidirectional movement through the connecting rod 25, and cooperates with the opening and closing plate 16 to realize the transfer work of the blade section, reducing manual operation and ensuring that the blade section enters the crushing area at an appropriate angle.

[0036] Furthermore, a plurality of grooves 121 are spaced apart on the inner surfaces of both sides of the lower shell 12. Both ends of the buffer plate 34 are slidably connected to the corresponding grooves 121 through bumps 341. A plurality of buffer hydraulic cylinders 33 are spaced apart on the inner surfaces of both ends of the lower shell 12. The end of the piston rod of the buffer hydraulic cylinder 33 is fixedly connected to the corresponding buffer plate 34. A plurality of groups of buffer columns 342 are arranged on the surface of the buffer plate 34 away from the buffer hydraulic cylinder 33. The plurality of groups of buffer columns 342 are spaced apart along the length direction of the buffer plate 34. The length of each group of buffer columns 342 increases sequentially from top to bottom. The material of the buffer column 342 is an elastic material. The oppositely arranged buffer plates 34 can not only slow down the speed of the blade section when it falls into the lower shell 12, but also play a clamping role, so that the blade section slowly contacts the crushing roller 32, avoiding impact on the crushing roller 32 caused by too large falling speed.

[0037] Furthermore, two fixed seats 26 are arranged on the outer surface of one end of the upper shell 11 away from the conveying groove 115. The two fixed seats 26 are centrosymmetric about the connecting hole 112. A turning hydraulic cylinder 27 is rotatably arranged on the fixed seat 26. Curved rods 233 are fixedly arranged at both ends of the second positioning plate 232. A connecting column 234 is fixedly arranged at the end of the curved rod 233. The end of the piston rod of the turning hydraulic cylinder 27 is rotatably connected to the connecting column 234. The arrangement of the curved rod 233 can enable the turning hydraulic cylinder 27 to better push the connecting shaft 23 to rotate.

[0038] Further, a baffle 14 is slidably arranged in the conveying trough 115. Two fixing blocks 131 are spaced apart on both sides of the conveying trough 115. A lifting lead screw 132 is rotatably arranged between the two fixing blocks 131 on one side, and a lifting slide bar 133 is fixedly arranged between the two fixing blocks 131 on the other side. A bottom plate 141 is fixedly arranged on the outer side of the lower end of the baffle 14. One end of the bottom plate 141 is threadedly connected to the lifting lead screw 132, and the other end is slidably connected to the lifting slide bar 133. A lifting motor 13 is arranged on the upper surface of the fixing block 131 provided with the lifting lead screw 132, and the end of the output shaft of the lifting motor 13 is fixedly connected to the lifting lead screw 132.

[0039] Further, a material passing hole 113 is penetrated and opened in the middle of the lower surface inside the upper housing 11. Two opening and closing plates 16 are slidably arranged on both sides of the lower part of the material passing hole 113. A convex plate 161 is fixedly arranged on one side surface of one opening and closing plate 16 close to the material passing hole 113, and a sealing groove 162 is opened on the corresponding surface of the other opening and closing plate 16. The convex plate 161 is inserted into or separated from the sealing groove 162. A plurality of sliding grooves 114 are spaced apart on the lower parts of both side surfaces of the material passing hole 113. A plurality of sliding blocks 163 are spaced apart on the upper surface of the opening and closing plate 16, and the sliding blocks 163 are slidably connected to the corresponding sliding grooves 114. When the two opening and closing plates 16 are inserted, the inside of the upper housing 11 is not communicated with the inside of the lower housing 12, and when the two opening and closing plates 16 are separated, the inside of the upper housing 11 is communicated with the inside of the lower housing 12.

[0040] Further, two support blocks 151 are spaced apart on one side of the lower surface of the upper housing 11. A opening and closing lead screw 152 is rotatably arranged between the two support blocks 151. The threads at both ends of the opening and closing lead screw 152 are opposite. A connecting block 164 is fixedly arranged at one end of the opening and closing plate 16 close to the support block 151, and the connecting block 164 is threadedly connected to the opening and closing lead screw 152. An opening and closing motor 15 is arranged on the outer surface of one of the support blocks 151, and the end of the output shaft of the opening and closing motor 15 is fixedly connected to the opening and closing lead screw 152. Heat insulation materials are arranged on each side wall of the upper housing 11, as well as inside the baffle 14 and the opening and closing plate 16. The arranged baffle 14 and opening and closing plate 16 can isolate the inside of the upper housing 11 from the outside, and the arranged opening and closing plate 16 can isolate the upper housing 11 from the lower housing 12, ensuring the sealing performance and improving the freezing efficiency.

[0041] Further, a support frame 122 is fixedly arranged on the outer surface of one side of the lower part of the lower housing 12. A first driving wheel 312 and a second driving wheel 313 are respectively rotatably arranged in the support frame 122. The first driving wheel 312 and the second driving wheel 313 are connected by belt drive. A crushing motor 31 is arranged outside the support frame 122, and the end of the output shaft of the crushing motor 31 is fixedly connected to the first driving wheel 312. A rotating shaft 321 is fixedly penetrated through the middle of the crushing roller 32, and the rotating shaft 321 is rotatably connected to the lower housing 12. One end of the rotating shaft 321 penetrates through the lower housing 12 and is fixedly connected to the second driving wheel 313.

[0042] Furthermore, a discharge hole 123 is provided at the lower end of the lower housing 12. The crushing assembly 3 further includes a pneumatic crusher 35. An inlet 351 is provided at the upper part of the pneumatic crusher 35. The discharge hole 123 is internally connected to the pneumatic crusher 35 through the inlet 351. A discharge outlet 352 is provided at the lower end of the pneumatic crusher 35. The conveying trough 115 is connected to the discharge outlet 352 through the upper housing 11, the lower housing 12, the discharge hole 123, and the pneumatic crusher 35. The provided pneumatic crusher 35 and the crushing roller 32 can perform multiple crushing operations on the blade segments, and the crushing effect is better. Preferably, the pneumatic crusher 35 can also be replaced with other crushing structures such as a ball mill, or the discharge hole 123 can be connected to different crushing structures according to the requirements of the crushed blade particles.

[0043] When a waste wind turbine blade recycling and crushing device is in use, start the lifting motor 13. The output shaft of the lifting motor 13 rotates, driving the lifting screw rod 132 to rotate. The baffle 14 threadedly connected to the lifting screw rod 132 moves upward. At this time, the inside of the upper housing 11 is communicated with the outside. Start the conveyor belt 5, and place the blade segments cut into a certain length on the conveyor belt 5. The waste blade segments are conveyed by the conveyor belt 5 between the two clamping plates 21 inside the upper housing 11. Start the clamping hydraulic cylinder 24. The piston rod of the clamping hydraulic cylinder 24 retracts, driving the two clamping plates 21 to approach through the driving block 241 and the connecting rod 25, clamping the blade segments. Reverse the lifting motor 13 to drive the baffle 14 to reset. At this time, the inside of the upper housing 11 is a closed environment. Start the valve on the pipeline of the liquid nitrogen tank 4, and liquid nitrogen is sprayed from the nozzle 41 to the blade segments through the pipeline. At the same time, start the air extraction device to extract the volatilized nitrogen in the upper housing 11 through the exhaust pipeline 17 from the upper housing 11. After a period of freezing, close the valve and the air extraction device. Start the tilting hydraulic cylinder 27. The end of the piston rod of the tilting hydraulic cylinder 27 extends, pushing the curved rod 233 to move. The curved rod 233 drives the connecting shaft 23 to rotate. The connecting shaft 23 drives the tilting plate 22 to rotate through the first positioning plate 231. The tilting plate 22 drives the clamping plates 21 and the blade segments to rotate from the horizontal state to the vertical state. Start the opening and closing motor 15. The output shaft of the opening and closing motor 15 rotates, driving the opening and closing screw rod 152 to rotate. The two opening and closing plates 16 threadedly connected to the opening and closing screw rod 152 move in opposite directions. At this time, the inside of the upper housing 11 is communicated with the inside of the lower housing 12;

[0044] Start the crushing motor 31 and the air flow crusher 35. The output shaft of the crushing motor 31 rotates, driving the first transmission wheel 312 to rotate. The first transmission wheel 312 drives the second transmission wheel 313 and the crushing roller 32 to rotate through belt transmission. Then, drive the piston rod of the clamping hydraulic cylinder 24 to extend, and the two clamping plates 21 move away from each other. The blade segment separates from the clamping plate 21 and falls into the lower housing 12 through the material passing hole 113. At this time, the turning plate 22 and the clamping plate 21 can be reset. When the upper surface of the blade segment is below the lower surface of the opening and closing plate 16, repeat the above steps to clamp and freeze the next blade segment. When the frozen blade segment contacts the buffer columns 342 on the upper part of the buffer plate 34, the falling speed of the blade segment slows down. As the blade segment contacts more and more buffer columns 342, the blade segment is gradually clamped by the buffer plate 34. At this time, start the buffer hydraulic cylinder 33, and the piston rod of the buffer hydraulic cylinder 33 retracts, driving the two buffer plates 34 to move away from each other. As the buffer columns 342 contacting the blade segment slowly decrease, the blade segment continues to fall. When the blade segment falls at a relatively slow and uniform speed, the piston rod of the buffer hydraulic cylinder 33 stops moving. The blade segment falls until it contacts the crushing roller 32, and the crushing roller 32 performs primary crushing on the blade segment. The crushed blade fragments fall into the air flow crusher 35 through the discharge hole 123 and the feed port 351 for secondary crushing, and finally flow out through the discharge port 352. When this device is in use, the blade segment is first frozen by the provided liquid nitrogen tank 4, making the blade structure brittle and easier to be broken by the machine, and extending the service life of the crushing roller 32. The provided turning assembly 2 can not only clamp the blade segment to be frozen, but also drive the blade segment to adjust the angle through the turning hydraulic cylinder 27, and cooperate with the buffer plate 34 to make it more convenient to perform the crushing work on the blade segment, without manual adjustment, saving manpower.

Claims

1. A recycling and crushing device for waste wind turbine blades, which is used to crush the blade segments after cutting waste wind turbine blades, and is characterized in that: It includes a support component, a flipping component and a crushing component. The support component includes an upper shell and a lower shell which are fixedly connected. The flipping component is connected to the upper shell, and the crushing component is connected to the lower shell. On both sides of the upper surface of the upper shell, liquid nitrogen tanks are provided. The liquid nitrogen tanks are communicated with the nozzles inside the upper shell through pipelines. The flipping component includes a flipping plate and two clamping plates. The flipping plate is rotatably connected to the inner wall of the upper shell. The two clamping plates are symmetrically and slidably arranged on the flipping plate. The blade section is located between the two clamping plates. The crushing component includes two oppositely arranged buffer plates and two relatively rotating crushing rollers. The crushing rollers are located below the buffer plates. When the clamping plates are in the horizontal state, the nozzles face the inner sides of the two clamping plates. When the clamping plates are in the vertical state, the inside of the upper shell is communicated with the inside of the lower shell.

2. The recycling and crushing device for waste wind turbine blades according to claim 1, wherein: One end of the upper shell is provided with a conveying groove. The blade section enters the inside of the upper shell through the conveying groove. On the surface of one end of the upper shell away from the conveying groove, two centrally symmetric arc grooves are provided. The clamping plates are located on the side of the flipping plate close to the conveying groove. On the side of the flipping plate away from the conveying groove, two limiting plates are symmetrically arranged. At the end of the limiting plate, a limiting block is fixedly provided. The limiting block is slidably connected to the corresponding arc groove.

3. The recycling and crushing device for waste fan blades according to claim 2, characterized in that: A connecting shaft is rotatably arranged on the inner wall of one end of the upper shell. At both ends of the connecting shaft, a first positioning plate and a second positioning plate are respectively fixedly provided. The first positioning plate and the second positioning plate are respectively located inside and outside the upper shell. The first positioning plate is fixedly connected to the limiting plate. In the middle of the surface of the second positioning plate, a clamping hydraulic cylinder is provided. The piston rod of the clamping hydraulic cylinder penetrates through the connecting shaft and extends into the inside of the upper shell. At the end of the piston rod of the clamping hydraulic cylinder, a driving block is fixedly provided. The end of the driving block is movably connected to the clamping plate through a connecting rod.

4. A waste fan blade recycling and crushing device according to claim 1, characterized in that: The buffer plates are slidably arranged inside the lower shell. On the surfaces at both ends inside the lower shell, a plurality of buffer hydraulic cylinders are arranged at intervals. The end of the piston rod of the buffer hydraulic cylinder is fixedly connected to the corresponding buffer plate. On the surface of the buffer plate away from the buffer hydraulic cylinder, multiple groups of buffer columns are provided. The multiple groups of buffer columns are arranged at intervals along the length direction of the buffer plate. The length of each group of buffer columns increases sequentially from top to bottom. The buffer columns are made of elastic materials.

5. The recycling and crushing device for waste wind turbine blades according to claim 3, wherein: On the outer surface of one end of the upper shell away from the conveying groove, two flipping hydraulic cylinders are rotatably arranged. The two flipping hydraulic cylinders are centrally symmetric about the connecting hole. At both ends of the second positioning plate, curved rods are fixedly provided. At the end of the curved rod, a connecting column is fixedly provided. The end of the piston rod of the flipping hydraulic cylinder is rotatably connected to the connecting column.

6. The recycling and crushing device for waste wind turbine blades according to claim 2, characterized in that: A baffle is slidably arranged in the conveying groove. On both sides of the conveying groove, two fixing blocks are arranged at intervals. Between the two fixing blocks on one side, a lifting lead screw is rotatably arranged. Between the two fixing blocks on the other side, a lifting slide rod is fixedly provided. One end of the lower part of the baffle is threadedly connected to the lifting lead screw, and the other end is slidably connected to the lifting slide rod. On the upper surface of the fixing block provided with the lifting lead screw, a lifting motor is provided. The end of the output shaft of the lifting motor is fixedly connected to the lifting lead screw.

7. A waste fan blade recycling and crushing device according to claim 1, characterized in that: A material passing hole is formed through the middle of the inner lower surface of the upper shell. Two opening and closing plates are slidably arranged on both sides of the lower part of the material passing hole. The two opening and closing plates are inserted or separated through a convex plate and a sealing groove. When the two opening and closing plates are inserted, the inside of the upper shell is not communicated with the inside of the lower shell. When the two opening and closing plates are separated, the inside of the upper shell is communicated with the inside of the lower shell.

8. A waste fan blade recycling and crushing device according to claim 7, characterized in that: Two support blocks are arranged at intervals on one side of the lower surface of the upper shell. An opening and closing lead screw is rotatably arranged between the two support blocks. The threads at both ends of the opening and closing lead screw are opposite. A connecting block is fixedly arranged at one end of the opening and closing plate close to the support block. The connecting block is threadedly connected with the opening and closing lead screw. An opening and closing motor is arranged on the outer surface of one of the support blocks. The end of the output shaft of the opening and closing motor is fixedly connected with the opening and closing lead screw.

9. The recycling and crushing device for waste wind turbine blades according to claim 1, characterized in that: A support frame is fixedly arranged on the outer surface of one side of the lower part of the lower shell. A crushing motor is arranged outside the support frame. A rotating shaft is fixedly penetrated through the middle of the crushing roller. The rotating shaft is rotatably connected with the lower shell. One end of the rotating shaft penetrates through the lower shell and is connected with the output shaft of the crushing motor through a belt drive.

10. A waste fan blade recycling and crushing device according to claim 2, characterized in that: A discharge hole is arranged at the lower end of the lower shell. The lower end of the discharge hole is connected with an air flow crusher. An outlet is arranged at the lower end of the air flow crusher. The conveying groove is communicated with the outlet through the upper shell, the lower shell, the discharge hole and the air flow crusher.

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