Backsheet removal structure for photovoltaic module recycling

Abstract

The application discloses a backboard removing structure for photovoltaic module recycling, which comprises a conveying unit and a cutting unit. The conveying unit comprises a plurality of conveying rollers which are distributed in parallel and at intervals and extend along the width direction of the photovoltaic module. The backboard removing structure further comprises an auxiliary cutting unit located at the discharge port of the cutting unit. The auxiliary cutting unit comprises a compression roller arranged at the discharge port and forming a compression channel with the conveying rollers, and an auxiliary cutting module located at the outlet of the compression channel. In one aspect, the backboard removing structure is based on the cooperation of the compression roller and the auxiliary cutting tool. During the horizontal conveying of the module, the surface residual backboard is removed by a shovel cutting part and discharged to the open port at both ends, effectively reducing the residual backboard on the surface of the module and improving the backboard recycling rate. In another aspect, the module with the removed backboard part remains flat and moves forward and offsets the lateral stress, which can form lateral and warping restrictions, effectively reducing the damage rate of the battery piece and improving the intact recycling rate of the brittle glass substrate.

Description

Technical Field

[0001] This invention belongs to the field of environmental protection technology, and specifically relates to a backsheet removal structure for photovoltaic module recycling. Background Technology

[0002] A photovoltaic (PV) module is a power generation device that generates direct current (DC) electricity when exposed to sunlight. It consists of thin, solid-state photovoltaic cells made almost entirely of semiconductor materials (such as silicon). More than 90% of these materials can be recycled and reused. As their lifespan is limited, retired PV modules generally require solid waste recycling to achieve resource recycling. This not only alleviates the shortage of raw materials for PV equipment to some extent but also effectively reduces environmental pollution (i.e., recycling the solar cells from solid waste into useful raw materials to achieve resource recycling, while also effectively carrying out environmental governance and protecting the environment).

[0003] The backsheet layer of a photovoltaic module mainly consists of a PET base film, an outer fluorine film formed on the front and back sides of the PET base film by adhesives, and an inner and outer fluorine film. When removing and recycling the backsheet layer in a photovoltaic module, the main method is physical cutting. That is, the photovoltaic module is horizontally transported with the backsheet layer facing upwards into the backsheet removal station. The backsheet layer is continuously cut and peeled off by a roller cutting mechanism set above the station. The backsheet debris generated by cutting falls into the corresponding waste recycling tank set below the station under the action of gravity for centralized collection.

[0004] However, in actual recycling, physical removal is difficult to completely remove the adhesive layer and fluorine film from the surface of the solar cell, leaving residues. At the same time, the debris after cutting easily adheres to the surface of the solar cell, affecting the purity of the recycled solar cell material. In addition, it is difficult to control lateral stress during physical removal, especially when cutting the tail end of the module. The rigid module is prone to transient warping and micro-displacement, which not only greatly increases the edge chipping and microcrack rate of the solar cell, but also directly threatens the integrity of the brittle glass substrate (making it extremely difficult to achieve non-destructive recycling of the entire glass panel). Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved backsheet removal structure for photovoltaic module recycling.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A backsheet removal structure for photovoltaic module recycling includes a transmission unit and a cutting unit. The transmission unit includes multiple transmission rollers arranged side-by-side and extending along the width direction of the photovoltaic module. The backsheet removal structure also includes an auxiliary cutting unit located at the discharge port of the cutting unit. The auxiliary cutting unit includes a pressure roller disposed at the discharge port and forming a pressure channel with the transmission rollers, and an auxiliary cutting module located at the outlet of the pressure channel. The auxiliary cutting module includes an auxiliary cutting tool extending along the width direction of the photovoltaic module and open at both ends to discharge waste. The bottom of the auxiliary cutting tool facing the outlet of the pressure channel forms a scraping part that fits the surface of the photovoltaic module, and a waste inlet extending along the length direction of the auxiliary cutting tool is formed above the side where the scraping part is located. The transmission rollers, the pressure rollers located above the transmission rollers and the auxiliary cutting tool arranged in sequence cooperate to horizontally transport the photovoltaic module with the backsheet removed forward and offset the side stress generated by cutting.

[0007] According to a specific embodiment and preferred aspect of the invention, the length of the auxiliary cutting tool is greater than or equal to the width of the photovoltaic module. Here, the auxiliary cutting area covers the entire width of the photovoltaic module, ensuring that waste material does not fall onto the photovoltaic module surface again upon discharge.

[0008] Preferably, the auxiliary cutting tool includes a base plate, a side plate, and a top plate, wherein the rear end of the base plate forms a scraping section, and the lower end of the side plate near the outlet of the pressure conveying channel forms a waste inlet between it and the scraping section. This design is simple and easy to assemble and implement.

[0009] Preferably, the base plate is located directly above a transmission roller, wherein the bottom surface of the base plate is horizontal and can conform to the surface of the photovoltaic module, or the base plate extends from front to back and is inclined downward, and the self-cutting part conforms to the surface of the photovoltaic module.

[0010] According to another specific embodiment and preferred aspect of the invention, the auxiliary cutting module further includes a flow-diverting module disposed inside the auxiliary cutting tool, wherein the flow-diverting module is used to divert and guide waste material to the open ends of the auxiliary cutting tool. Here, during the forward horizontal transport of the assembly, the scraping part and the flow-diverting module work together to remove the residual back plate on the surface and divert it to both sides for discharge, avoiding accumulation in the auxiliary cutting tool and causing blockage, while also being more conducive to dispersing and offsetting the lateral stress generated by cutting and auxiliary cutting.

[0011] Preferably, the diversion module has two diversion surfaces that open towards both ends, wherein the two diversion surfaces intersect to form diversion edges that extend vertically and intersect with the bottom of the auxiliary cutting tool. During scraping, the scrap material from the back plate is diverted through the diversion edges and moves along the two diversion surfaces towards the openings at both ends. Here, the scrap material moves along the two diversion surfaces towards the openings at both ends through the diversion of the diversion edges, resulting in the best diversion effect and preventing accumulation and blockage at the scrap inlet.

[0012] Preferably, the diversion edge extends backward and slopes upward from bottom to top; and / or, the lower end of the diversion edge intersects with the shoveling section, and the upper end of the diversion edge intersects with the side wall of the auxiliary cutting tool. Here, as waste material continuously enters the waste inlet, it can maintain forward movement while being diverted to both sides under the extrusion pressure, further preventing blockage at the waste inlet position due to obstruction by the diversion edge, effectively avoiding dead angles inside the auxiliary cutting tool, thereby ensuring stable diversion and discharge to both sides under the extrusion pressure as waste material continuously passes through the waste inlet.

[0013] Preferably, the orthographic projections of the two diversion surfaces in both the vertical and front-back directions are triangular; and / or, the two diversion surfaces extend from the diversion edge to their respective open ends; and / or, the two diversion surfaces are symmetrically arranged about the diversion edge; and / or, the orthographic projections of the diversion edge, the vertical centerline of the auxiliary cutting tool, and the vertical centerline of the photovoltaic module in the front-back direction coincide. Here, the two diversion surfaces and the inner wall of the auxiliary cutting tool form a triangular pyramid shape, so that the waste can gradually converge and be discharged from the open end during the process of diverting the waste to both sides, which facilitates material discharge and collection.

[0014] According to another specific embodiment and preferred aspect of the invention, the auxiliary cutting unit further includes an auxiliary conveying roller disposed in front of the auxiliary cutting tool and used for forward conveying the photovoltaic module. Here, the photovoltaic module maintains forward conveying power after being assisted in cutting, so as to maintain stable forward movement for assisted cutting even after the photovoltaic module has completely exited the discharge port of the cutting unit.

[0015] In addition, the backplate removal structure also includes a receiving and guiding unit located below the transmission unit. The receiving and guiding unit comprises one or more guide base plates extending from back to front and downwards at an angle, and guide side plates located on the left and right sides of the guide base plates. In a horizontal projection, the guiding area formed by the guide base plates and guide side plates covers the cutting unit and the auxiliary cutting tool. Here, waste material falling from cutting and auxiliary cutting can be simultaneously received and guided for collection based on the receiving and guiding unit, resulting in simple operation and a high recovery rate.

[0016] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art: Existing technologies using physical removal methods often fail to completely remove the adhesive layer and fluorine film from the surface of the solar cells, leaving residues. Furthermore, the debris from the cutting process easily adheres to the surface of the solar cells, affecting the purity of the recycled solar cell materials. In addition, it is difficult to control lateral stress during physical removal, especially when cutting the tail end of the module. The rigid module is prone to transient warping and micro-displacement, which not only significantly increases the edge chipping and microcrack rate of the solar cells, but also directly threatens the integrity of the brittle glass substrate (making it extremely difficult to achieve non-destructive recycling of the entire glass panel). This application provides an overall design for the backsheet removal structure used in photovoltaic module recycling, cleverly addressing the shortcomings and defects of existing technologies. Using this backsheet removal structure, the photovoltaic module is horizontally transported with the backsheet layer facing upwards using a transmission roller. First, the photovoltaic module passes through a cutting unit, where the backsheet layer is cut. Then, as the photovoltaic module with the backsheet removed gradually exits from the discharge port of the cutting unit, the transmission roller, along with the pressure roller and auxiliary cutting tools arranged sequentially above it, work together to horizontally transport the photovoltaic module with the backsheet removed forward and counteract the lateral stress generated by the cutting. The pressure conveying channel smoothly passes the photovoltaic module through the auxiliary cutting tools, and the scraping section scrapes off the remaining backsheet on the surface of the photovoltaic module. The scraped backsheet waste enters the interior of the auxiliary cutting tools through a waste inlet and is discharged through the open openings at both ends of the auxiliary cutting tools. Therefore, compared with the prior art, this invention has several advantages. First, based on the cooperation of the pressure roller and the auxiliary cutting tool, the residual backsheet on the surface is removed by the scraping part during the forward horizontal transport of the module and discharged through the open openings at both ends, effectively reducing the residual backsheet on the module surface and improving the backsheet recycling rate. Second, based on the module moving forward with the backsheet removed while maintaining flatness and offsetting lateral stress, it can form lateral restraint and warpage restraint, effectively reducing the damage rate of the solar cells and improving the intact and non-destructive recycling rate of the brittle glass substrate. Third, during the forward horizontal transport of the module, the scraping part and the diversion module work together to remove the residual backsheet on the surface and divert it to both sides, avoiding accumulation in the auxiliary cutting tool and causing blockage, while also being more conducive to dispersing and offsetting the lateral stress generated by cutting and auxiliary scraping. Fourth, waste continuously enters... When the waste material is inlet, it can move forward while being diverted to both sides under the extrusion pressure, further avoiding blockage caused by the diversion edge at the waste material inlet position. This effectively avoids dead corners inside the auxiliary cutting tool, thus ensuring that the waste material is stably diverted to both sides and discharged under the extrusion pressure as it continuously passes through the waste material inlet. Fourthly, the two diversion surfaces and the inner wall of the auxiliary cutting tool form a triangular pyramid shape, which allows the waste material to gradually converge and be discharged from the open opening during the diversion process, facilitating material drop and collection. Fifthly, the auxiliary cutting area covers the entire width of the photovoltaic module, ensuring that the waste material does not fall onto the photovoltaic module surface again when discharged. Sixthly, the waste material dropped from cutting and auxiliary cutting can be simultaneously received and guided by the receiving and guiding unit, which is simple to operate and has a high recovery rate. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the backsheet removal structure for photovoltaic module recycling according to the present invention. Figure 2 This is a three-dimensional structural diagram of the backsheet removal structure for photovoltaic module recycling of the present invention (circular conveyor belt omitted). Figure 3 for Figure 2 A top-down view; Figure 4 for Figure 3 Schematic diagram of the sectional view along the central AA direction; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B in the diagram; Figure 6 A three-dimensional structural diagram of the auxiliary cutting module; Among them: 1. Transmission unit; 10. Transmission rollers; 2. Cutting unit; 20. Hobbing cutter; 3. Auxiliary cutting unit; 30. Pressure roller; t. Pressing channel; 31. Auxiliary cutting module; 310. Auxiliary cutting tool; a0. Base plate; a1. Side plate; a2. Top plate; b. Shaving section; k. Waste inlet; 311. Diversion module; m. Diversion surface; s. Diversion edge; j. Fixed connection bracket; 32. Auxiliary conveying roller; 4. Material receiving and guiding unit; 40. Guide base plate; 41. Guide side plate; G. Photovoltaic modules; D. Circular conveyor belt. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] like Figures 1 to 6 As shown, the backsheet removal structure for photovoltaic module recycling involved in this embodiment includes a transmission unit 1, a cutting unit 2, an auxiliary cutting unit 3, and a receiving and guiding unit 4.

[0025] Specifically, the transmission unit 1 includes multiple transmission rollers 10 arranged side by side in the front-to-back direction and extending along the width direction (i.e., the left-to-right direction) of the photovoltaic module G. The multiple transmission rollers 10 are divided into upper transmission rollers and lower transmission rollers. The photovoltaic module G is horizontally transmitted from back to front based on the rotational cooperation of the upper and lower transmission rollers.

[0026] In this example, the cutting unit 2 includes two rolling cutters 20 disposed above the photovoltaic module's transmission path. The two rolling cutters 20 are arranged side-by-side at intervals in the front-to-back direction and extend along the width direction of the photovoltaic module G, and the cutting areas they form are complementary to perform cutting of the photovoltaic module across its entire width. The rolling cutters 20 used in this embodiment are any conventional rolling cutters (e.g., planers) suitable for the backsheet layer of photovoltaic modules.

[0027] In this example, the auxiliary cutting unit 3 is located at the outlet of the cutting unit 2 and includes a pressure roller 30 disposed at the outlet of the cutting unit 2 and forming a pressure conveying channel t with the transmission roller 10, an auxiliary cutting module 31 fixedly connected to the outlet of the pressure conveying channel t by a fixed connecting bracket j, and an auxiliary conveying roller 32. The auxiliary cutting module 31 includes an auxiliary cutting tool 310 extending along the width direction of the photovoltaic module and open at both ends, and a diversion module 311 disposed inside the auxiliary cutting tool 310 and capable of diverting and guiding the waste to the open ends. The bottom of the auxiliary cutting tool 310 facing the outlet of the pressure conveying channel t forms a scraping part b that fits the surface of the photovoltaic module, and a waste inlet k extending along the length direction of the auxiliary cutting tool 310 is formed above the side where the scraping part b is located. The transmission roller 10 and the pressure roller 30 and auxiliary cutting tool 310 arranged sequentially above the transmission roller 10 cooperate to horizontally transport the photovoltaic module with the back sheet removed forward and offset the side stress generated by cutting.

[0028] In some specific embodiments, the length of the auxiliary cutting tool 310 is greater than or equal to the width of the photovoltaic module G, and the auxiliary cutting tool 310 includes a base plate a0, a side plate a1, and a top plate a2. The rear end of the base plate a0 forms a scraping section b, and a waste inlet k is formed between the lower end of the side plate a1 near the outlet of the pressure conveying channel t and the scraping section b. Here, the auxiliary cutting area covers the entire width of the photovoltaic module, ensuring that waste does not fall onto the surface of the photovoltaic module again when discharged.

[0029] Meanwhile, the base plate a0 is located directly above a transmission roller 10. The bottom surface of the base plate a0 is horizontal and can adhere to the surface of the photovoltaic module, or the base plate a0 extends downwards from front to back, with the self-cutting portion b adhering to the surface of the photovoltaic module. In this embodiment, the bottom surface of the base plate a0 is preferably horizontal. This improves the flattening effect on the photovoltaic module and avoids warping deformation caused by stress generated during the cutting process.

[0030] In this example, the flow-diverting module 311 has two flow-diverting surfaces m that open towards both ends of the auxiliary cutting tool 310. The two flow-diverting surfaces m intersect to form flow-diverting edges s that extend vertically and intersect with the bottom of the auxiliary cutting tool 310 (i.e., the base plate a0). During scraping, the scrap material from the back plate is diverted through the flow-diverting edges s and moves along the two flow-diverting surfaces m towards the two open ends. Here, the scrap material moves along the two flow-diverting surfaces towards the two open ends through the diversion of the flow-diverting edges, resulting in the best flow-diverting effect and preventing accumulation and blockage at the scrap material inlet.

[0031] In some specific embodiments, the diversion edge s extends from bottom to top and then tilts backward. Here, as the waste material continuously enters the waste inlet, it can maintain forward movement while being diverted to both sides under the extrusion pressure, further avoiding blockage at the waste inlet position caused by the diversion edge.

[0032] Meanwhile, the lower end of the diversion edge s intersects with the shovel section b, and the upper end of the diversion edge s intersects with the side wall of the auxiliary cutting tool 310 (i.e., the side plate a1 on the side away from the outlet of the pressure conveying channel t). This effectively avoids the formation of dead corners inside the auxiliary cutting tool, thereby ensuring that the waste is stably diverted to both sides under the action of extrusion pressure when it continuously passes through the waste inlet.

[0033] The two flow-diverting surfaces m are triangular in both the vertical and front-back directions. Each surface m extends from the flow-diverting edge s to its corresponding opening. Here, the two flow-diverting surfaces and the inner wall of the auxiliary cutting tool form a triangular pyramid shape, allowing the waste material to gradually converge and exit through the opening as it flows to both sides, facilitating material discharge and collection.

[0034] Two flow-diverting surfaces m are symmetrically arranged about the flow-diverting edge s; the vertical center lines of the flow-diverting edge s, the auxiliary cutting tool 310, and the photovoltaic module G are aligned in the front-to-back direction by their orthogonal projections. Here, the waste material on the surface of the photovoltaic module is evenly diverted and discharged to both sides.

[0035] In this example, the auxiliary conveying roller 32 is positioned in front of the auxiliary cutting tool 310 and is used to transport the photovoltaic module forward. Here, the photovoltaic module maintains forward transmission power after being assisted in the cutting process, so that it continues to move steadily forward for assisted cutting even after the photovoltaic module has completely exited the discharge port of the cutting unit.

[0036] Furthermore, a receiving and guiding unit 4 is located below the transmission unit 1. The receiving and guiding unit 4 includes one or more guide base plates 40 extending from back to front and downwards at an angle, and guide side plates 41 located on the left and right sides of the guide base plates 40. In a horizontal projection, the guiding area formed by the guide base plates 40 and the guide side plates 41 covers the cutting unit 2 and the auxiliary cutting tool 310. An annular conveyor belt D is located at the lower end of the guide base plate 40 to receive and output the waste material cut off by the cutting unit 2 and the auxiliary cutting tool 310. Here, the waste material from cutting and auxiliary cutting can be simultaneously received and guided by the receiving and guiding unit, simplifying operation and achieving a high recovery rate.

[0037] In summary, with this backsheet removal structure, the photovoltaic module is horizontally transported with the backsheet layer facing upwards based on the transmission roller. First, the photovoltaic module passes through the cutting unit, where the backsheet layer of the photovoltaic module is cut. Then, as the photovoltaic module with the backsheet removed is gradually output from the outlet of the cutting unit, the transmission roller and the pressure roller and auxiliary cutting tool arranged in sequence above the transmission roller work together to horizontally transport the photovoltaic module with the backsheet removed forward and offset the side stress generated by cutting. The pressure conveying channel flattens the photovoltaic module as it passes through the auxiliary cutting tool, and the scraping part scrapes off the backsheet remaining on the surface of the photovoltaic module. The scraped backsheet waste enters the interior of the auxiliary cutting tool through the waste inlet. Finally, the diversion module diverts and guides the waste to the open openings at both ends of the auxiliary cutting tool before discharge.

[0038] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.

Claims

1. A backsheet removal structure for recycling photovoltaic modules, comprising a conveying unit and a cutting unit, wherein the conveying unit includes multiple conveying rollers arranged side-by-side at intervals and extending along the width direction of the photovoltaic module, characterized in that, The backsheet removal structure also includes an auxiliary cutting unit located at the discharge port of the cutting unit. The auxiliary cutting unit includes a pressure roller disposed at the discharge port and forming a pressure conveying channel with the transmission roller, and an auxiliary cutting module located at the outlet of the pressure conveying channel. The auxiliary cutting module includes an auxiliary cutting tool that extends along the width direction of the photovoltaic module and is open at both ends to discharge waste. The bottom of the auxiliary cutting tool facing the outlet of the pressure conveying channel forms a scraping part that fits the surface of the photovoltaic module, and a waste inlet extending along the length direction of the auxiliary cutting tool is formed above the side where the scraping part is located. The transmission roller and the pressure roller and auxiliary cutting tool arranged sequentially above the transmission roller cooperate to horizontally transport the photovoltaic module with the backsheet removed forward and offset the side stress generated by cutting.

2. The backsheet removal structure for photovoltaic module recycling according to claim 1, characterized in that, The length of the auxiliary cutting tool is greater than or equal to the width of the photovoltaic module.

3. The backsheet removal structure for photovoltaic module recycling according to claim 1, characterized in that, The auxiliary cutting tool includes a base plate, a side plate, and a top plate, wherein the rear end of the base plate forms the shovel section, and the lower end of the side plate near the outlet of the pressure channel forms the waste inlet between the shovel section and the shovel section.

4. The backsheet removal structure for photovoltaic module recycling according to claim 3, characterized in that, The base plate is located directly above a transmission roller, wherein the bottom surface of the base plate is horizontal and can conform to the surface of the photovoltaic module, or the base plate extends from front to back and is inclined downward, with the self-cutting part conforming to the surface of the photovoltaic module.

5. The backsheet removal structure for photovoltaic module recycling according to claim 1, characterized in that, The auxiliary cutting module also includes a flow diversion module disposed inside the auxiliary cutting tool, wherein the flow diversion module is used to divert and guide the waste material to the open ends of the auxiliary cutting tool.

6. The backsheet removal structure for photovoltaic module recycling according to claim 5, characterized in that, The diversion module has two diversion surfaces that open towards both ends respectively. The two diversion surfaces intersect to form a diversion edge that extends vertically and intersects with the bottom of the auxiliary cutting tool. During scraping, the back plate debris is diverted through the diversion edge and moves along the two diversion surfaces to the openings at both ends respectively.

7. The backsheet removal structure for photovoltaic module recycling according to claim 6, characterized in that, The flow divider extends from bottom to top and backward at an angle; and / or, the lower end of the flow divider intersects with the shovel section, and the upper end of the flow divider intersects with the side wall of the auxiliary cutting tool.

8. The backsheet removal structure for photovoltaic module recycling according to claim 6, characterized in that, The orthographic projections of the two flow-dividing surfaces in both the vertical and front-back directions are triangular; and / or, the two flow-dividing surfaces extend from the flow-dividing edge to their respective open ends; and / or, the two flow-dividing surfaces are symmetrically arranged about the flow-dividing edge; and / or, the orthographic projections of the flow-dividing edge, the vertical centerline of the auxiliary cutting tool, and the vertical centerline of the photovoltaic module in the front-back direction coincide.

9. The backsheet removal structure for photovoltaic module recycling according to claim 1, characterized in that, The auxiliary cutting unit also includes an auxiliary conveying roller disposed in front of the auxiliary cutting tool and used to transport the photovoltaic module forward.

10. The backsheet removal structure for photovoltaic module recycling according to claim 1, characterized in that, The backplate removal structure also includes a receiving guide unit disposed below the transmission unit. The receiving guide unit includes one or more guide base plates extending from back to front and downward at an angle, and guide side plates disposed on the left and right sides of the guide base plates. In the orthographic projection on the horizontal plane, the guide area formed by the guide base plates and the guide side plates covers the cutting unit and the auxiliary cutting tool.

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