A method for constructing a decommissioned wind turbine blade assembly type footbridge and an edge processing device

Abstract

The application discloses a kind of retired fan blade assembly type footbridge construction method and edge processing device, including, the blade is cut, and the segmented blade is obtained;The edge part of segmented blade is handled;The surface part of segmented blade is handled;The positioning position of the blade after edge processing is installed connecting key, for mutual connection;Pretreatment is set mould in the position of bridge abutment to be installed, then pours concrete and maintains forming;And, the main bridge deck slab blade is installed in the reserved installation position of early pouring concrete.The retired fan blade of the application is effectively recycled, and the retired fan blade is mainly treated by cutting and other physical methods, to avoid environmental pollution as much as possible, and reduce carbon emissions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solid waste disposal and bridge engineering, and particularly relates to a retired wind turbine blade assembled footbridge construction method and an edge processing device. BACKGROUND

[0002] Since the 21st century, the wind power industry in China has shown a vigorous development momentum. By the end of 2021, the cumulative installed capacity of wind power in China was about 340 million kilowatts, with a high growth rate of 19.2%, and the grid-connected installed capacity has ranked first in the world for twelve consecutive years. However, while the installed capacity has been breaking new records, the retirement of old wind turbines in China has also arrived. It is estimated that by 2025, about 1250 MW of wind turbines installed in 2005 will face retirement, and only the wind turbine blades will generate 5800 tons of solid waste.

[0003] Due to the high proportion of glass fiber reinforced polymer (GFPR) and carbon fiber reinforced polymer (CFRP) in wind turbine blades, existing physical and chemical treatment methods are difficult to achieve recycling, and even cause further environmental pollution, which goes against the original intention of using clean wind energy. In the rapid development of green new energy, the harmless disposal of retired wind turbine blades and the industrialization development need to be accelerated. How to do a good job in its large-scale disposal and realize efficient recycling and green recycling has become a key problem for the sustainable development of the wind power industry. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the problems existing in the harmless disposal and recycling of retired wind turbine blades, the present application is proposed.

[0006] Therefore, one of the purposes of the present application is to provide a retired wind turbine blade assembled footbridge construction method.

[0007] To solve the above technical problems, the present application provides the following technical solutions:

[0008] A retired wind turbine blade assembled footbridge construction method, comprising,

[0009] Cutting the blade to obtain a segmented blade;

[0010] Processing the edge part of the segmented blade;

[0011] Processing the surface part of the segmented blade;

[0012] The positioning position of the blade after edge processing is installed with a connecting key for mutual connection;

[0013] The bridge pier position is installed, the mold is set in advance, and then the concrete is poured and cured to form;

[0014] The main bridge deck slab blade is installed on the reserved installation position of the early poured concrete.

[0015] As a preferred scheme of the retired wind turbine blade assembly type footbridge construction method, wherein: the blade edge part processing includes edge grinding of the cut blade edge part, and then edge sealing and wrapping treatment, and positioning the connecting key position.

[0016] As a preferred scheme of the retired wind turbine blade assembly type footbridge construction method, wherein: the blade surface part processing includes blade surface grinding, cleaning of dirty parts and repairing of damaged parts.

[0017] The retired wind turbine blade assembly type footbridge construction method has the beneficial effects that: the retired wind turbine blade is effectively recycled, mainly through physical methods such as cutting to process the retired wind turbine blade, to avoid environmental pollution as much as possible, reduce carbon emissions, use the bridge structure form mainly bearing bending moment to fully utilize the remaining strength of the material in the wind turbine blade, ensure efficient use of resources, high standardization, simple structure, effectively reduce the structure weight, only use manpower and small machinery for the whole process construction, and convenient for popularization in remote rural areas.

[0018] In view of the problems that in the recycling process of the wind turbine blade, the cutting wind turbine blade is easy to deflect during edge grinding, dust is easy to be generated during the edge grinding process, and the debris remaining on the blade surface after edge grinding is inconvenient to process.

[0019] To solve the above technical problems, the present application also provides the following technical scheme:

[0020] A retired wind turbine blade edge processing device, comprising,

[0021] The edge grinding unit comprises a handle, a fixed seat arranged at one end of the handle, an edge grinding assembly arranged at one side of the fixed seat, and a guide assembly arranged below the fixed seat; and,

[0022] The cleaning unit comprises a cleaning rod connected to one side of the handle, a cleaning assembly arranged on the cleaning rod, and a traction assembly arranged on one side of the cleaning rod and used for pulling the cleaning assembly.

[0023] As a preferred scheme of the retired fan blade edge processing device, the edge grinding assembly comprises a driving shaft sleeve arranged on one side of the fixed seat, a shaft rod arranged on the shaft sleeve and in sliding connection with the driving shaft sleeve, and an edge grinding wheel arranged at one end of the shaft rod.

[0024] As a preferred scheme of the retired fan blade edge processing device, the guide assembly comprises a guide wheel arranged below the fixed seat, a rotating shaft arranged at the upper end of the guide wheel and connected with the fixed seat, a guide groove arranged on the rotating shaft, and a traction structure arranged on one side of the rotating shaft and used for pulling the shaft rod.

[0025] As a preferred scheme of the retired fan blade edge processing device, the traction structure comprises a piston cylinder arranged on one side of the fixed seat, a piston rod arranged in the piston cylinder, a fixed block arranged at the bottom end of the piston rod, a guide block arranged on one side of the fixed block, a fixed plate arranged on one side of the upper surface of the fixed block, and a traction rod arranged on one side of the top end of the fixed plate and hinged with the shaft rod.

[0026] As a preferred scheme of the retired fan blade edge processing device, the cleaning assembly comprises a scraper arranged on one side of the cleaning rod, a rotating shaft arranged through the scraper, a sliding block arranged at one end of the rotating shaft, a sliding groove arranged on the cleaning rod, and a limiting structure arranged between the rotating shaft and the cleaning rod.

[0027] As a preferred scheme of the retired fan blade edge processing device, the limiting structure comprises a shifting piece arranged on the rotating shaft, an extension plate arranged on one side of the cleaning rod and below the shifting piece, and an inclined tooth arranged on the extension plate and in contact with the shifting piece.

[0028] As a preferred scheme of the retired fan blade edge processing device, the traction assembly comprises a guide shaft arranged at one end of the cleaning rod, a spiral groove arranged on the guide shaft, a traction rope arranged in the spiral groove and connected with the sliding block and the guide wheel at both ends, and a spring arranged in the sliding groove and connected with the sliding block.

[0029] The retired fan blade edge processing device has the following advantages: the guide wheel is arranged to move along the cutting surface during edge grinding, avoiding deflection, and the guide wheel is used to drive the piston cylinder to reciprocate, spraying water on the edge grinding wheel to cool the edge grinding wheel, reduce dust generated during edge grinding, and the guide wheel is used to drive the cleaning assembly to clean the surface of the fan blade, reducing debris residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0031] Figure 1 This is a flow chart of the method for constructing a prefabricated pedestrian bridge for retired wind turbine blades according to the present invention.

[0032] Figure 2 This is a cross-sectional structural diagram of a wind turbine blade in the method for constructing an assembled pedestrian bridge using retired wind turbine blades according to the present invention.

[0033] Figure 3 This is a design drawing of a pedestrian bridge according to the method for constructing an assembled pedestrian bridge with retired wind turbine blades according to the present invention.

[0034] Figure 4 It is a schematic diagram of the overall structure of the edge processing device for retired wind turbine blades of the present invention.

[0035] Figure 5 This is a schematic structural diagram of the edging unit described in the edge processing device for retired wind turbine blades of the present invention.

[0036] Figure 6 The invention provides a device for processing the edge of a retired fan blade. Figure 2 A schematic diagram of the enlarged structure of part A.

[0037] Figure 7 This is a schematic structural diagram of the right side view of the fixing seat described in the retired wind turbine blade edge processing device of the present invention.

[0038] Figure 8 This is a schematic structural diagram of the cleaning unit described in the retired wind turbine blade edge processing device of the present invention.

[0039] Figure 9 The invention provides a device for processing the edge of a retired fan blade. Figure 4 Schematic diagram of the enlarged structure of part B.

[0040] Figure 10 This is a schematic diagram of the limiting structure of the retired wind turbine blade edge processing device of the present invention. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure aspects of the present application.

[0043] Second, the "one embodiment" or "an embodiment" as used herein means a specific implementation, or example, that can include features that are not included in other implementations or examples. Thus, different implementations or examples can have different features.

[0044] Third, the present application is described in relation to the drawings. In describing the present application, the cross-sectional views of the device structure are partially enlarged without the general scale for the convenience of explanation, and the schematic views are only examples and should not limit the scope of the present application. In addition, the three-dimensional spatial dimensions of length, width, and depth should be included in actual production.

[0045] Example 1

[0046] Referring to Figures 1-3 A decommissioned fan blade assembled pedestrian bridge construction method includes the following steps:

[0047] S1, blade cutting: cutting the blade using a cutting mechanism to obtain a segmented blade;

[0048] The cutting size and shape of the fan blade are determined according to the design requirements and the actual size of the fan blade. When designing, the deflection limit of the fan blade bridge deck under pedestrian load (<1 / 500 single span), the stability limit (the first section buckling live load factor >4), and the vertical vibration frequency (>3Hz) are mainly considered. The fan blade is mainly composed of seven parts, such as the leading edge 1, the leading edge panel 2, the main beam 3, the trailing edge panel 4, the trailing edge reinforcement 5, the trailing edge 6, and the web 7, as shown in Figure 2 According to the required shape and size, the main beam 3 and the trailing edge reinforcement 6, which contain high-strength materials such as carbon fiber and glass steel, are cut as the main bridge deck to bear the pedestrian load. Other parts with a certain curvature, such as the leading edge 1 or the leading edge panel 2, are selected as petal-shaped bridge side baffles 22 for shielding and decorative purposes.

[0049] S2, edge processing: processing the edge part of the segmented fan blade;

[0050] The edge part of the cut fan blade is ground using an edge grinding device to remove burrs, and then the edge is closed and wrapped, and the connection key position is positioned.

[0051] S3, surface treatment: treating the surface part of the fan blade after cutting;

[0052] Wherein, the surface of the blade is polished by the polishing mechanism, the dirty part is cleaned by acetone solution, and then air dried; for the damaged part, glass fiber cloth and tempered polyester liquid are prepared for repairing material sticking, and the repaired part is polished after drying.

[0053] S4, connecting key installation: according to the design positioning position, install the connecting key, connect the main bridge deck 21 with the bridge side baffle 22 or the guardrail handrail;

[0054] S5, abutment pouring: at the position where the abutment is to be installed, the mold is set in advance, then the concrete is poured and cured to form, and the installation position is reserved;

[0055] S6, construction assembly: install the main bridge deck blade on the reserved installation position of the pre-poured concrete.

[0056] Firstly, according to the standard guidelines for wind turbine blade transportation, the cut fan blade is transported to the site, which minimizes the risk and cost of blade damage during transportation; secondly, combined with the stress characteristics of the blade itself, the lifting point is set, and the main bridge deck 21 is installed on the reserved installation position of the pre-poured concrete by whole lifting; finally, after the blade is fixed firmly, the connection and installation of the auxiliary facilities (such as the bridge side baffle 22 and the guardrail handrail on the other side) are carried out.

[0057] Example 2

[0058] Referring to Figures 4-6 The difference between this embodiment and the first embodiment is: a retired fan blade edge processing device, comprising an edge polishing unit 100 and a cleaning unit 200, which can use the edge polishing unit 100 to polish the edge part of the cut fan blade, reduce burrs, and at the same time use the cleaning unit 200 to clean the debris produced on the fan blade due to polishing.

[0059] Specifically, the edge polishing unit 100 comprises a handle 101, a fixed seat 102 arranged at one end of the handle 101, an edge polishing assembly 103 arranged at one side of the fixed seat 102, and a guide assembly 104 arranged below the fixed seat 102; wherein the handle 101 is fixedly connected with the fixed seat 102, the fixed seat 102 is internally provided with a driving motor, the edge polishing assembly 103 is arranged at one side of the fixed seat 102, and the driving end of the edge polishing assembly 103 is connected with the driving motor, the guide assembly 104 is used for guiding the edge polishing assembly 103, so that the edge polishing assembly 103 always moves along the edge of the fan blade being polished.

[0060] Further, the cleaning unit 200 comprises a cleaning rod 201 connected to one side of the handle 101, a cleaning assembly 202 arranged on the cleaning rod 201, and a traction assembly 203 arranged on one side of the cleaning rod 201 and used for pulling the cleaning assembly 202, wherein the cleaning rod 201 is in the form of a rectangular rod as a whole, and a V-shaped groove is formed on one side of the cleaning rod 201, so that the cleaning rod 201 can scrape off impurities on the surface of the fan blade, the cleaning assembly 202 can move on the cleaning rod 201 and be used in cooperation with the cleaning rod 201 to scrape off the impurities accumulated during the movement of the cleaning rod 201, wherein the traction assembly 203 is used to pull the cleaning assembly 202 to move back and forth, the traction assembly 203 can be a reciprocating air cylinder, and the cleaning assembly 202 can be a brush, so that the debris generated by the edge grinding on the fan blade can be pushed and accumulated by moving the cleaning rod 201 along with the handle 101, and then the reciprocating air cylinder moves and drives the brush to move to clean the impurities accumulated on the surface of the fan blade by the cleaning rod 201.

[0061] Further, the edge grinding assembly 103 comprises a driving shaft sleeve 103a arranged on one side of the fixed seat 102, a shaft rod 103b arranged on the shaft sleeve and in sliding connection with the driving shaft sleeve 103a, and an edge grinding wheel 103c arranged on one end of the shaft rod 103b, wherein one end of the driving shaft sleeve 103a extends into the inside of the fixed seat 102 and is connected with the output shaft of the driving motor arranged in the inside of the fixed seat 102, a limiting protrusion is protruded on the inner wall of the driving shaft sleeve 103a, a limiting groove matching the limiting protrusion is formed on the shaft rod 103b, the shaft rod 103b is in sliding connection with the shaft sleeve through the matching of the limiting protrusion and the limiting groove, and the edge grinding wheel 103c is fixedly installed on one end of the shaft rod 103b, so that the driving motor can drive the driving shaft sleeve 103a to rotate, the driving shaft sleeve 103a can drive the shaft rod 103b to rotate synchronously when the driving shaft sleeve 103a rotates, and thus the edge grinding wheel 103c can rotate.

[0062] Further, the guide assembly 104 comprises a guide wheel 104a arranged below the fixed seat 102, a rotating shaft 104b arranged on the upper end of the guide wheel 104a and connected with the fixed seat 102, a guide groove 104c arranged on the rotating shaft 104b, and a traction structure 104d arranged on one side of the rotating shaft 104b and used for pulling the shaft rod 103b, wherein the guide wheel 104a is fixedly connected with the rotating shaft 104b, the rotating shaft 104b is rotatably connected with the lower surface of the fixed seat 102, the side wall of the guide wheel 104a is in contact with the cutting surface of the fan blade, the guide groove 104c is arranged on the surface of the rotating shaft 104b and is a wave-shaped groove body connected at the head and tail, one side of the traction structure 104d extends into the guide groove 104c, when the guide wheel 104a rotates to drive the rotating shaft 104b to rotate, the guide groove 104c can move with the guide wheel 104a and drive the traction structure 104d to work, and the traction structure 104d can pull the shaft rod 103b to move the edge grinding wheel 103c in a small range left and right during rotation to increase the edge grinding range, ensure good edge grinding effect, and avoid edge grinding dead angles.

[0063] Further, the traction structure 104d comprises a piston cylinder 104d-1 arranged on one side of the fixed seat 102, a piston rod 104d-2 arranged in the piston cylinder 104d-1, a fixed block 104d-3 arranged at the bottom end of the piston rod 104d-2, a guide block 104d-4 arranged on one side of the fixed block 104d-3, a fixed plate 104d-5 arranged on one side of the upper surface of the fixed block 104d-3, and a traction rod 104d-6 arranged on one side of the top end of the fixed plate 104d-5 and hinged with the shaft rod 103b, wherein the piston cylinder 104d-1 is fixedly installed on one side of the fixed seat 102, the piston rod 104d-2 is slidingly installed in the piston cylinder 104d-1, and the driving end of the piston rod 104d-2 is located below the piston cylinder 104d-1, the top end of the fixed seat 102 is provided with a water storage tank, the piston cylinder 104d-1 is provided with a water inlet and a water outlet, one-way valves are arranged on the water inlet and the water outlet, the water inlet is communicated with the inside of the water storage tank through a pipeline, the water outlet is connected with a water spraying pipe, the water outlet of the water spraying pipe faces the edge grinding wheel 103c, one end of the guide block 104d-4 is arranged in a spherical surface, the end of the guide block 104d-4 arranged in the spherical surface extends into the guide groove 104c, the fixed plate 104d-5 extends upward and is located on one side of the piston cylinder 104d-1, one end of the traction rod 104d-6 is hinged with the fixed plate 104d-5, and the other end of the traction rod 104d-6 is hinged with a bearing sleeve installed on the shaft rod 103b.

[0064] Operation process: when working, hold the handle 101, and make the guide wheel 104a side wall contact with the cutting surface of the fan blade, at this time the edge grinding wheel 103c contacts with the surface of the fan blade, start the driving motor to drive the driving shaft sleeve 103a to rotate, so that the shaft rod 103b rotates and drives the edge grinding wheel 103c to rotate, at this time, the worker only needs to rotate the guide wheel 104a by the handle 101 to push, which can make the guide wheel 104a move along the cutting surface of the fan blade, ensure the edge grinding stable, and avoid the deviation;

[0065] At the same time, the rotation of the guide wheel 104a drives the rotation of the rotating shaft 104b, so that the guide groove 104c can move with the guide wheel 104a, at this time the guide block 104d-4 moves down or up along the guide groove 104c; when the guide block 104d-4 moves down, the piston rod 104d-2 is driven to move down synchronously, at this time the negative pressure state in the piston cylinder 104d-1 absorbs the water in the water storage tank through the water inlet and pipeline, and the fixed block 104d-3 moves down and drives the fixed plate 104d-5 to move down, at this time the traction rod 104d-6 pulls the shaft rod 103b close to the fixed seat 102; when the guide block 104d-4 moves along the guide groove 104c, at this time the water in the piston cylinder 104d-1 can be squeezed out through the water outlet and the water jet pipe by the upward movement of the piston rod 104d-2, on the one hand it can cool the edge grinding wheel 103c, on the other hand it can make the water drop on the surface of the fan blade, reduce the dust generated during the edge grinding, and when the guide block 104d-4 moves up, it can push the fixed plate 104d-5 to move up, so that the traction rod 104d-6 drives the shaft rod 103b to move away from the fixed seat 102, which can make the edge grinding wheel 103c move in a small range during the working process, increase the edge grinding range, avoid the edge grinding dead angle, and ensure good edge grinding effect.

[0066] Embodiment 3

[0067] Reference Figures 7-10The difference between the embodiment and the above embodiments is that the cleaning assembly 202 comprises a scraper 202a arranged on one side of the cleaning rod 201, a rotating shaft 202b arranged through the scraper 202a, a sliding block 202c arranged at one end of the rotating shaft 104b, a sliding groove 202d arranged on the cleaning rod 201, and a limiting structure 202e arranged between the rotating shaft 104b and the cleaning rod 201, wherein the sliding groove 202d is arranged on the surface of the cleaning plate, the sliding block 202c is arranged in the sliding groove 202d, one end of the sliding block 202c outside the sliding groove 202d is connected with the rotating shaft 202b through a bearing, the scraper 202a is sleeved on the rotating shaft 202b and fixedly connected with the rotating shaft 202b, the scraper 202a is arranged obliquely, the bottom end of the scraper 202a is flush with the bottom end of the cleaning rod 201 and in contact with the surface of the fan blade, and the scraper 202a can move transversely along the cleaning rod 201 to scrape off the impurities accumulated on one side of the cleaning rod 201, thereby effectively cleaning the impurities generated by the edge grinding on the surface of the fan blade.

[0068] Specifically, the limiting structure 202e comprises a pushing piece 202e-1 arranged on the rotating shaft 104b, an extension plate 202e-2 arranged on one side of the cleaning rod 201 and below the pushing piece 202e-1, and inclined teeth 202e-3 arranged on the extension plate 202e-2 and in contact with the pushing piece 202e-1, wherein the pushing piece 202e-1 is in the form of a circular ring and the bottom end thereof is integrally formed with a pushing tooth, the extension plate 202e-2 is below the pushing tooth and fixedly connected with the side wall of the cleaning rod 201, and the inclined teeth 202e-3 are evenly arranged on the upper surface of the extension plate 202e-2. When the scraper 202a is pulled and moves towards the handle 101, the pushing tooth is in contact with the inclined teeth 202e-3 at this time, the inclined teeth 202e-3 push the pushing tooth and the pushing piece 202e-1 to rotate by a certain angle, and the bottom end of the scraper 202a is in abutment with the surface of the fan blade. During the movement of the scraper 202a, the pushing tooth intermittently abuts against the inclined teeth 202e-3, so that the bottom of the scraper 202a can abut against the surface of the fan blade when the scraper 202a moves towards the handle 101, thereby scraping and cleaning the impurities on the surface of the fan blade. When the scraper 202a moves away from the handle 101, the pushing tooth on the pushing piece 202e-1 is slightly lifted upwards under the action of the inclined teeth 202e-3, so that the rotating shaft 104b rotates by a certain angle and the bottom end of the scraper 202a is lifted upwards, so that the scraper 202a does not contact the surface of the fan blade, thereby avoiding pushing the impurities back when the scraper 202a retracts.

[0069] Further, the traction assembly 203 includes a guide shaft 203a arranged at one end of the cleaning rod 201, a spiral groove 203b arranged on the guide shaft 203a, a traction rope 203c arranged in the spiral groove 203b and connected with the sliding block 202c and the guide wheel 104a at two ends respectively, and a spring 203d arranged in the sliding groove 202d and connected with the sliding block 202c, one end of the traction rope 203c is fixedly connected with the sliding block 202c, the other end of the traction rope 203c is connected with the protrusion arranged on the lower surface of the guide wheel 104a through the spiral groove 203b, one end of the spring 203d is connected with the sliding block 202c, and the other end of the spring 203d is connected with the inner wall of one end of the sliding groove 202d.

[0070] The remaining structures are the same as those in Embodiment 2.

[0071] Operation process: during the edge grinding process, when the guide wheel 104a is rotated by pushing the handle 101, the whole edge grinding device moves, and at the same time, the bottom end of the cleaning rod 201 is in contact with the surface of the fan blade. During the movement process, the impurities generated at the edge of the fan blade during the edge grinding can be pushed and accumulated by the cleaning rod 201, and when the guide wheel 104a rotates, the traction rope 203c is moved by the rotation of the guide wheel 104a. When one end of the traction rope 203c moves away from the guide shaft 203a, the sliding block 202c is pulled by the traction rope 203c, so that the scraper 202a moves towards the handle 101. During the movement of the scraper 202a, the spring 203d is compressed, and the intermittent abutment of the driving teeth with the bevel teeth 202e-3 is actuated, so that when the scraper 202a moves towards the handle 101, the bottom thereof can abut against the surface of the fan blade, thereby scraping and cleaning the impurities on the surface of the fan blade. When one end of the traction rope 203c approaches the guide shaft 203a, the sliding block 202c is reset by the spring 203d, and when the scraper 202a moves away from the handle 101, the driving teeth on the actuating member 202e-1 are slightly lifted upwards under the action of the bevel teeth 202e-3, so that the rotating shaft 104b is rotated by a certain angle, the bottom end of the scraper 202a is lifted upwards, the scraper 202a is not in contact with the surface of the fan blade, and the impurities are not pushed back when the scraper 202a is retracted. The impurities accumulated on one side of the cleaning rod 201 can be scraped and cleaned by the reciprocating movement of the scraper 202a, thereby reducing the debris and impurities on the fan blade.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A device for processing the edge of retired wind turbine blades, characterized by: include, cutting the leaves to obtain segmented leaves; Processing the edge of the segmented leaves; Partially processing the surface of the segmented leaf; Connecting keys are installed at the positioning positions of the blades after edge processing for mutual connection; Pre-set the mold at the location where the abutment is to be installed, then pour the concrete and cure it; and Install the main bridge deck blades on the reserved installation positions of the early concrete pouring; An edging unit (100) comprises a handle (101), a fixing seat (102) arranged at one end of the handle (101), an edging assembly (103) arranged at one side of the fixing seat (102), and a guide assembly (104) arranged below the fixing seat (102); and; A cleaning unit (200) comprises a cleaning rod (201) connected to one side of the handle (101), a cleaning assembly (202) arranged on the cleaning rod (201), and a traction assembly (203) arranged on one side of the cleaning rod (201) and used to traction the cleaning assembly (202); The edging assembly (103) comprises a drive sleeve (103a) arranged on one side of the fixing seat (102), a shaft (103b) arranged on the sleeve and slidably connected to the drive sleeve (103a), and an edging wheel (103c) arranged at one end of the shaft (103b); The guide assembly (104) comprises a guide wheel (104a) disposed below the fixed seat (102), a rotating shaft (104b) disposed at the upper end of the guide wheel (104a) and connected to the fixed seat (102), a guide groove (104c) disposed on the rotating shaft (104b), and a traction structure (104d) disposed on one side of the rotating shaft (104b) and used for pulling the shaft (103b); The traction structure (104d) comprises a piston cylinder (104d-1) arranged on one side of the fixing seat (102), a piston rod (104d-2) arranged inside the piston cylinder (104d-1), a fixing block (104d-3) arranged at the bottom end of the piston rod (104d-2), a guide block (104d-4) arranged on one side of the fixing block (104d-3), a fixing plate (104d-5) arranged on one side of the upper surface of the fixing block (104d-3), and a traction rod (104d-6) arranged on one side of the top end of the fixing plate (104d-5) and hinged to the shaft (103b).

2. The edge processing device for retired wind turbine blades according to claim 1, characterized in that: The blade edge processing includes grinding the edge of the blade after cutting, then sealing and wrapping the edge, and locating the connection key position.

3. The edge processing device for retired wind turbine blades according to claim 1 or 2, characterized in that: The blade surface treatment includes polishing the blade surface, cleaning the dirty parts and repairing the damaged parts.

4. The edge processing device for retired wind turbine blades according to claim 3, characterized in that: The cleaning assembly (202) comprises a scraper (202a) arranged on one side of the cleaning rod (201), a rotating shaft (202b) penetrating the scraper (202a), a slider (202c) arranged at one end of the rotating shaft (104b), a sliding groove (202d) arranged on the cleaning rod (201), and a limiting structure (202e) arranged between the rotating shaft (104b) and the cleaning rod (201).

5. The edge processing device for retired wind turbine blades according to claim 4, characterized in that: The limiting structure (202e) comprises a toggle member (202e-1) arranged on the rotating shaft (104b), an extension plate (202e-2) arranged on one side of the cleaning rod (201) and located below the toggle member (202e-1), and bevel teeth (202e-3) arranged on the extension plate (202e-2) and in contact with the toggle member (202e-1).

6. The edge processing device for retired wind turbine blades according to claim 5, characterized in that: The traction assembly (203) comprises a guide shaft (203a) arranged at one end of the cleaning rod (201), a spiral groove (203b) arranged on the guide shaft (203a), a traction rope (203c) arranged in the spiral groove (203b) and connected at both ends to a slider (202c) and a guide wheel (104a), and a spring (203d) arranged in the slide groove (202d) and connected to the slider (202c).

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