Equipment for removing sealant from waste solar panels

Abstract

A sealant removal device for waste solar panels is provided. The sealant removal device includes a frame, a transport unit provided on the frame for transporting waste solar panels horizontally, a pressing unit that descends from the top of the transport unit and presses and fixes the waste solar panels, and a blade unit that includes a first blade that moves in close contact with the waste solar panels and along the edges of the waste solar panels to scrape off and remove sealant adhering to the surface of the waste solar panels, and a second blade positioned behind the first blade and moving along the edges of the waste solar panels to remove any sealant remaining after the first blade has passed.

Description

Technical Field

[0001] The present invention relates to a technology for recyclably decomposing waste solar panels that have reached the end of their service life. More specifically, the present invention relates to a sealant removal device for waste solar panels that can remove sealants and foreign substances adhering to the glass plates of waste solar panels.

[0002] The present invention was developed under the following R&D support project in Korea. Project unique number: 2022003170 Project number: 2022003170007 Administrative agency: Ministry of Environment Name of the project management (specialized) agency: Korea Environment Industry & Technology Institute Name of the research project: Growth support program (commercialization) for green innovation companies Name of the research topic: Development of resource recycling process technology for solar waste panels and technology commercialization Contribution rate: 1 / 1 Name of the project implementing agency: Won Kwang S&T Co., Ltd. Research period: April 1, 2022 to December 31, 2022

Background Art

[0003] The efficiency of solar power generation has been significantly improved through continuous technological development. Technological progress related to energy conversion, such as cell improvement and panel structure improvement, and the progress of solar panel placement and cooperation technology (e.g., energy storage management technology) have produced a synergistic effect and have been applied to the industry in various forms.

[0004] When solar power generation is applied on a large scale, the number of solar panels also increases. Since solar power generation adjusts the power generation amount by increasing or decreasing modular units such as solar panels, when the power generation amount increases, more solar panels are used accordingly.

[0005] Solar panels, like other solar cells, require replacement or disposal once their lifespan is reached. While management is relatively easy, disposal can involve additional steps due to the panel's structure. Separating the glass pane from the film layer (the part containing the cells) is one of the main processing steps to consider when disposing of solar panels.

[0006] In particular, techniques are used in the processing stage to remove the film layer (a layer to which solar cells, encapsulants, backsheets, etc., are bonded to the glass plate using a multi-layer bonding method) using a scraper or the like in order to reuse the glass plate. For example, see Korean Published Patent No. 10-2021-0094258. In this process, the pressure from the scraper is transmitted to the glass plate, but if the pressure is uneven due to sealant or foreign matter remaining on the surface of the glass plate, problems such as the glass plate breaking due to the pressure may occur.

[0007] No adequate solutions have been provided to these problems in the past, and technical alternatives are needed. A relevant technology is the Korean Published Patent No. 10-2021-0094258. [Overview of the project] [Problems that the invention aims to solve]

[0008] The technical problem of the present invention is to solve the above-mentioned problems and to provide a technology for disassembling waste solar panels in a recyclable manner, and more specifically, to provide a sealant removal device for waste solar panels that can remove sealant and foreign matter adhering to the glass plates of waste solar panels.

[0009] The technical problems of the present invention are not limited to those described above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0010] The waste solar panel sealant removal device according to the present invention includes a frame, a transport unit provided on the frame for transporting the waste solar panel horizontally, a pressing unit that descends from the top of the transport unit and presses and fixes the waste solar panel, a first blade that adheres closely to the waste solar panel and moves along the edge of the waste solar panel to scrape and remove sealant adhering to the surface of the waste solar panel, and a blade unit that is positioned behind the first blade and moves along the edge of the waste solar panel to remove any remaining sealant after the first blade has passed.

[0011] The first blade and the second blade may be formed such that at least one of the angles they make with the surface of the waste solar panel and the depth to which they press against the waste solar panel are different from each other.

[0012] The transport unit may include a first transport unit consisting of a plurality of transport rollers that transport the waste solar panels in a first direction, and at least one second transport unit that transports the waste solar panels in a second direction perpendicular to the first direction.

[0013] The second transport unit may include a transport means for transporting the waste solar panels in the second direction, and a lifting means for moving the transport means up and down to raise the transport means above the upper end of the transport roller or lower it below the upper end of the transport roller.

[0014] The sealant removal device may further include a plurality of first stopper units, each provided on both sides of the first transport unit, and at least a portion of which moves in the second direction to support both sides of the waste solar panel in the second direction.

[0015] The first stopper unit includes a first support portion that supports the side surface of the waste solar panel, and a movable portion that extends and retracts the first support portion in the second direction, wherein the movable portion can separate the first support portion from the waste solar panel when the blade unit removes the sealant from the waste solar panel.

[0016] The sealant removal device includes a rotating shaft arranged parallel to the second direction, a second support portion coupled to the rotating shaft and supporting the side surface of the waste solar panel by the rotation of the rotating shaft, and a drive unit that rotates the rotating shaft, and may further include a plurality of second stopper units that support both sides of the waste solar panel in the first direction.

[0017] The second stopper unit can rotate its rotating shaft to separate the second support portion from the waste solar panel when the blade unit removes the sealant from the waste solar panel.

[0018] The blade units are arranged in groups of four for each edge of the waste solar panel and operate independently. Two blade units on adjacent edges can move along the edges arranged in an "inverted L" or "L" shape to remove sealant, and then the remaining two blade units can move along the edges arranged in an "L" or "inverted L" shape to remove sealant.

[0019] The first and second transport units transport the waste solar panels to one side, and the blade unit removes the sealant while moving along the edges arranged in an "inverted L" or "L" shape. After that, the first and second transport units move the waste solar panels diagonally, and the blade unit removes the sealant while moving along the edges arranged in an "L" or "inverted L" shape.

[0020] The blade unit further includes a third blade positioned behind the second blade, which moves along the edge of the decomposed solar panel to remove any sealant remaining after the second blade has passed, and the angles that the first blade, the second blade and the third blade make with respect to the surface of the decomposed solar panel can be progressively smaller.

[0021] The waste solar panel is arranged such that the glass plate contacts the conveying unit and the film layer contacts the pressing portion. The sealant removing device may further include a trimmer unit that is arranged above the waste solar panel and moves along the edge of the waste solar panel to remove the end portion of the film layer.

Advantages of the Invention

[0022] According to the present invention, the surface of the glass plate can be made uniform before the peeling step of the waste solar panel. In particular, the sealant (such as an adhesive) applied for adhering to the frame at the edge portion of the glass plate and other foreign matters can be removed very quickly and effectively. The present invention can obtain the effect of speeding up the process by working on a plurality of edge portions simultaneously even when the specifications and sizes of the waste solar panels are different. Since the sealant is removed more cleanly due to the blade structure, the effect of reducing the number of operations can also be obtained. Therefore, according to the present invention, the surface of the glass plate can be made uniform to effectively prevent damage to the glass plate in the peeling step and the like.

Brief Description of the Drawings

[0023] [Figure 1] It is a process layout diagram of a sealant removing device for a waste solar panel according to an embodiment of the present invention. [Figure 2] It is a perspective view of the sealant removing device of FIG. 1. [Figure 3] It is a main part exploded view of the sealant removing device of FIG. 2. [Figure 4] It is a side view of the sealant removing device of FIG. 3. [Figure 5] It is a plan view of the sealant removing device of FIG. 2. [Figure 6] It is a front view of the sealant removing device of FIG. 2. [Figure 7] It is a plan view showing a state where the upper structure in the sealant removing device of FIG. 2 is removed. [Figure 8] It is a plan view showing the entry operation of a waste solar panel with respect to the sealant removing device of FIG. 7. [Figure 9] The first position adjustment operation of the discarded solar panels is shown in Figure 7, a plan view of the sealant removal device, and in Figure 2, a partial cross-sectional view of the sealant removal device. [Figure 10] Figure 7 shows a plan view of the sealant removal device and Figure 2 shows a partial cross-section of the sealant removal device, illustrating the sealant removal and trimming operations after the first position adjustment. [Figure 11] The second position adjustment operation of the discarded solar panels is shown in Figure 7, a plan view of the sealant removal device, and in Figure 2, a partial cross-sectional view of the sealant removal device. [Figure 12] Figure 7 shows a plan view of the sealant removal device and Figure 2 shows a partial cross-section of the sealant removal device, illustrating the sealant removal and trimming operations after the second position adjustment. [Modes for carrying out the invention]

[0024] The advantages and features of the present invention and methods for achieving them will become clearer with reference to the embodiments described below in detail, along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and can be realized in a variety of different forms, and these embodiments are provided merely to complete the disclosure of the present invention and to fully inform those who are ordinary skill in the art to which the invention pertains, of the scope of the invention, and the present invention is defined solely by the claims. Throughout the specification, the same reference numerals refer to the same components.

[0025] The sealant removal device for waste solar panels according to the present invention will be described in detail below with reference to Figures 1 to 12.

[0026] Figure 1 is a process layout diagram of a sealant removal device for waste solar panels according to one embodiment of the present invention, Figure 2 is a perspective view of the sealant removal device of Figure 1, and Figure 3 is an exploded view of the main parts of the sealant removal device of Figure 2.

[0027] Referring to Figures 1 to 3, the sealant removal device 1 for waste solar panels according to the present invention (hereinafter referred to as the sealant removal device) includes a blade unit (see 500 in Figure 3) that can move in a straight line. The blade unit 500 moves in close contact with the waste solar panel (see A in Figure 1) and along the edge of the waste solar panel to remove foreign matter such as residual sealant.

[0028] The blade unit 500 is formed with a multi-blade structure. For example, the first blade (see 501 in Figure 3) and the second blade (see 502 in Figure 3) are formed to have different angles and / or pressing depths relative to the surface of the waste solar panel, allowing them to remove foreign matter such as residual sealant by contacting the same area on the surface of the waste solar panel at different angles and / or depths.

[0029] In this invention, such blade units 500 are positioned on four edges of a discarded solar panel (see the plan view in Figure 7). This allows for simultaneous work on multiple edges at once. In particular, since this invention allows for precise diagonal adjustment of the working position on the discarded solar panel (see Figures 9 and 11), simultaneous work on such edges (at least two edges simultaneously) is possible even when the discarded solar panels have different specifications.

[0030] The sealant removal device 1 of the present invention is configured as follows. The sealant removal device 1 includes a frame 100, a transport unit 200 provided on the frame 100 for transporting waste solar panels (see A in Figure 1) horizontally, a pressing unit 300 that descends from the top of the transport unit 200 and presses and fixes the waste solar panels, and a blade unit (see 500 in Figure 3) which includes a first blade (see 501 in Figure 3) that is in close contact with the waste solar panels and moves along the edges of the waste solar panels to scrape off and remove sealant adhering to the surface of the waste solar panels, and a second blade (see 502 in Figure 3) positioned behind the first blade 501 and moving along the edges of the waste solar panels to remove any sealant remaining after the first blade 501 has passed.

[0031] In one embodiment of the present invention, the first blade 501 and the second blade 502 of the blade unit 500 may be formed such that at least one of the angles they make with the surface of the waste solar panel and the depth to which they press against the waste solar panel is different from each other (see enlarged view of Figure 12).

[0032] Furthermore, the transport unit 200 may include a first transport unit (see 210 in Figure 3) consisting of a plurality of transport rollers 211 that transport the waste solar panels in a first direction, and at least one second transport unit (see 220 in Figure 3) that transports the waste solar panels in a second direction perpendicular to the first direction.

[0033] Furthermore, the first transport unit 210 may further include a plurality of first stopper units (see 410 in Figure 3) provided on both sides of the first transport unit 210, each having at least a portion that moves in the second direction to support both sides of the waste solar panel in the second direction, and a plurality of second stopper units (see 420 in Figures 3 and 4) that support both sides of the waste solar panel in the first direction, each including a rotating shaft (see 422 in Figure 4) arranged parallel to the second direction, a second support part (see 421 in Figure 3) coupled to the rotating shaft 422 and supporting the sides of the waste solar panel by the rotation of the rotating shaft 422, and a drive unit (see 423 in Figure 3) that rotates the rotating shaft 422.

[0034] The configuration and effects of the present invention will be described in more detail below based on the embodiment described above.

[0035] First, referring to Figure 1, the placement of the sealant removal device 1 in the process will be briefly explained as follows. The sealant removal device 1 is used in the dismantling process of waste solar panels. In the process, the glass plates of the waste solar panels (see Aa in Figure 9) are recovered without being crushed. The sealant removal device 1 is used, for example, in an intermediate stage after the process of dismantling the external frame (not shown) which is attached to the four edges of the waste solar panel (see A1 to A4 in Figure 8), and before the peeling process in which the film layer (see Ab in Figure 12) is peeled off from the waste solar panel (A in Figure 1) from which the external frame has been removed to separate the glass plates. The sealant removal device 1 is used to remove sealant and various foreign matter adhering to the edge portions of the waste solar panel, especially the front glass plate (see Aa in Figure 12), before the peeling process.

[0036] For this purpose, the sealant removal device 1 may have an input conveyor 10 and an output conveyor 20 positioned at the front (right side in Figure 1) and rear (left side in Figure 1), respectively, as shown in Figure 1. The waste solar panels A supplied to the sealant removal device 1 are in a state where their external frames have been dismantled and can be supplied into the sealant removal device 1 via the input conveyor 10.

[0037] The frame 100 of the sealant removal device 1 may have an inlet 110a opening on the side of the input conveyor 10 and an outlet 110b opening on the side of the output conveyor 20. In this state, the sealant removal device 1 can receive waste solar panels and remove the sealant (such as adhesive applied to fix the external frame) and various foreign matter remaining on the front surface of the waste solar panel A, and then prepare it for the next process.

[0038] The structure of the sealant removal device 1 will be described in more detail with reference to Figures 2 and 3. Referring to Figure 2, the sealant removal device 1 may be formed as a structure supported by a frame 100. The frame 100 may be formed by combining a substructure and an upper structure to effectively support the sealant removal device 1. For example, the frame 100 may include a bed (see 110 in Figure 3), which is the substructure, and an upper bridge (see 120 in Figure 3), which is the upper structure.

[0039] The upper bridge 120 in Figure 3 is shown with the upper end framework of the superstructure removed. The aforementioned entrance 110a and exit 110b may be located in front of and behind the bed 110, which is the substructure. The upper bridge 120 is provided to support the retaining portion 300 located on top of the bed 110. The superstructure of the frame 100, including the upper bridge 120, can be joined to the bed 110, which is the substructure, by welding or the like. The frame 100 can be formed in this manner.

[0040] The transport unit 200 is mounted on the frame 100 and transports the waste solar panels horizontally. The transport unit 200 may be positioned in the substructure of the frame 100 as shown in Figures 2 and 3. The horizontal direction may include a first direction and a second direction. Both the first and second directions of the present invention are horizontal (for example, perpendicular to gravity), and these may be directions located on the surface of the waste solar panel (see A in Figure 1). The first and second directions may be perpendicular to each other on the surface of the waste solar panel A, as shown in Figure 3. For example, the first and second directions may coincide with two perpendicular edges of the waste solar panel.

[0041] Referring to Figure 3, the transport unit 200 includes a first transport unit 210 that transports the waste solar panels in a first direction and a second transport unit 220 that transports the waste solar panels in a second direction perpendicular to the first direction. The first transport unit 210 consists of a plurality of transport rollers 211, and the second transport unit 220 is positioned between the transport rollers 211 in the longitudinal direction of the transport rollers 211.

[0042] The first conveying unit 210 may be formed with a structure in which a plurality of conveying rollers 211 are arranged horizontally spaced apart. The conveying rollers 211 may be connected by, for example, a chain or belt (not shown) to synchronize their rotation. The conveying rollers 211 may be exposed, and the second conveying unit 220 may be placed between them. The first conveying unit 210 may be formed, for example, in a configuration in which a plurality of conveying rollers 211 are rotatably coupled to a horizontal support base 212.

[0043] Referring to Figure 3, the second transport unit 220 may include a transport means 221 for transporting the waste solar panels A in a second direction, and a lifting means 222 for moving the transport means 221 up and down, raising the transport means 221 above the upper end of the transport roller 211 or lowering it below the upper end of the transport roller 211 (the second transport unit is shown separately on the left side of Figure 3).

[0044] In other words, the second transport unit 220 includes a lifting mechanism 222 that varies the height of the transport mechanism 221. The height of the transport mechanism 221 is variable by the lifting mechanism. The transport mechanism 221 may be formed, for example, a second-direction conveyor that transports objects in a second direction, and its height can also be changed by the lifting mechanism. The transport mechanism 221 is coupled to the lifting mechanism 222, which has an extendable structure that incorporates a cylinder or the like, and the entire mechanism is movable up and down.

[0045] Therefore, the second transport unit 220 is positioned between the transport rollers 211 of the first transport unit 210 and is movable to a position higher or lower than the upper end of the transport rollers 211. With this structure, the waste solar panels can be transported by the transport rollers 211 of the first transport unit 210 or by the transport means 221 of the second transport unit 220. The transport direction of the transport rollers 211 is a first direction, and the transport direction of the transport means 221 is a second direction perpendicular to this, so when these are driven in combination, the waste solar panels can be moved in a diagonal direction (see Figures 9 and 11). The specific operation process will be described in more detail later.

[0046] The second transport unit 220 may also be supported by the frame 100, and multiple units may be arranged between the transport rollers 211. The transport means 221 of the second transport unit 220 may be arranged in the longitudinal direction of the transport rollers 211 of the first transport unit 210. The transport means 221 can consist of a conveyor with a belt, as well as rollers (for example, rollers arranged perpendicular to the transport rollers).

[0047] The pressing section 300 is positioned on the top of the transport unit 200. As shown in Figures 2 and 3, the pressing section 300 may also be provided on the upper bridge 120 of the frame 100. The pressing section 300 is configured to be vertically movable and can descend from the top of the transport unit 200 as needed to press and fix the waste solar panels (see Figure 10(b)).

[0048] The retaining section 300 may include, for example, a slider 320 slidably coupled to the upper bridge 120, a retaining plate 310 positioned horizontally at the lower end of the slider 320, and a lifting drive unit 330 for raising and lowering the retaining plate 310. The slider 320 can be raised and lowered by being coupled to the vertical bar 121 of the upper bridge 120.

[0049] Since the retaining plate 310 is the part that contacts and pressurizes the waste solar panel, a buffer (for example, made of an elastic material such as rubber) can be placed therein if necessary. The lifting drive unit 330 may include, for example, a cylinder 330a fixed to the upper bridge 120 and a connecting member 330b that connects the cylinder 330a and the retaining plate 310. Therefore, the retaining plate 310 can be raised and lowered by the expansion and contraction action of the cylinder 330a.

[0050] However, since other forms of linear drive structures other than cylinders can be arranged vertically to form the lifting drive unit, the lifting drive unit is not limited to the configuration of this embodiment. When the retaining plate 310 descends, the waste solar panel can be pressed and fixed between the retaining plate 310 and the transport roller 211 of the first transport unit 210.

[0051] In this way, the transport unit 200 at the bottom of the frame 100 and the pressing section 300 at the top of the frame 100 can be configured. Therefore, the transport unit 200, including the first transport unit 210 and the second transport unit 220, can precisely position the waste solar panels in a direction that combines the first and second directions (for example, the diagonal direction), and then press and fix them with the pressing section 300 to remove foreign matter such as sealant.

[0052] The present invention may include a first stopper unit 410 and a second stopper unit 420 to more precisely adjust the position of the decomposed solar panel. The first stopper unit 410 is configured to support both sides of the decomposed solar panel in a second direction (corresponding to the second edge A2 and third edge A3 in Figure 8), and the second stopper unit 420 is configured to support both sides of the decomposed solar panel in a first direction (corresponding to the first edge A1 and fourth edge A4 in Figure 8). The structure and operation of both are described below.

[0053] Figure 4 is a side view of the sealant removal device shown in Figure 3, and Figure 5 is a top view of the sealant removal device shown in Figure 2.

[0054] The structures of the first stopper unit 410, the second stopper unit 420, and the blade unit 500 will be described in more detail below with reference to Figures 3 to 5. First, referring to Figures 3 and 5, the first stopper unit 410 is provided on both sides of the first transport unit 210. As shown in Figures 3 and 5, multiple first stopper units 410 may be arranged on both sides of the first transport unit 210 in the second direction, spaced apart in the second direction. Each first stopper unit 410 can selectively support either the second edge or the third edge of the waste solar panel.

[0055] The first stopper unit 410 is formed so that at least a portion of it moves in a second direction. Such a movable structure can support both sides of the decomposed solar panel in the second direction. Referring to Figure 5, the first stopper unit 410 may include a first support portion 411 that supports the side of the decomposed solar panel and a movable portion 412 that extends and retracts the first support portion 411 in the second direction. A support base (see 413 in Figure 3) may also be provided for height adjustment as needed.

[0056] The first support portion 411 may include a planar support plate 411a and a connecting bar 411b perpendicularly connected to the support plate 411a, as shown in Figure 5. The connecting bar 411b can be extended or retracted by being retracted into or pulled out of the movable portion 412. The first support portion 411 may be formed in a structure in which the connecting bar 411b is extended or retractably connected to the movable portion 412.

[0057] The movable part 412 may include a structure (e.g., a cylinder, gear, ball screw, etc.) that linearly drives the connecting bar 411b. Since the movable part 412 can also be fitted with various structures capable of driving the first support part 411, various deformations are possible as long as the first support part 411 can be extended or retracted. In other words, the drive structure of the movable part 412 does not need to be limited to a specific form.

[0058] The movable part 412 can separate the first support part 411 from the waste solar panel when the blade unit 500 removes sealant (and / or foreign matter, etc.) from the waste solar panel (see the operation diagrams in Figures 10(a) and 12(a)). That is, the movable part 412 may or may not support the side of the waste solar panel by extending or retracting the first support part 411 in the second direction. In particular, the operation of the movable part 412 to separate the first support part 411 from the waste solar panel allows the blade unit 500 to move more smoothly along the edge of the waste solar panel. The sealant removal operation using this will be described in detail later.

[0059] Referring to Figures 3 and 4, the second stopper unit 420 may include a rotating shaft 422 arranged parallel to the second direction, a second support part 421 that operates in conjunction with the rotating shaft 422, and a drive part 423 that drives the rotating shaft 422. As shown in Figure 4, multiple second stopper units 420 may be arranged on both sides of the first direction of the first transport unit 210, spaced apart in the first direction. Each second stopper unit 420 can selectively support either the first edge or the fourth edge of the aforementioned waste solar panel.

[0060] The second support portion 421 is coupled to the rotating shaft 422 and operates by the rotation of the rotating shaft 422. The second support portion 421 can support the side of the decomposed solar panel or move away from the decomposed solar panel by the rotation of the rotating shaft 422. In Figure 4, the second support portion 421 located on the left side is shown rotated to support the side of the decomposed solar panel, and the second support portion 421 located on the right side is shown rotated to move away from the decomposed solar panel.

[0061] In other words, the second stopper unit 420 also operates independently of each other and may or may not support the sides of the discarded solar panel. In particular, by using a second support part 421 that is connected to the rotating shaft 422 and whose position is changed by rotation, both sides of the discarded solar panel in the first direction can be effectively supported and easily detached as needed.

[0062] Referring to Figure 3, a single second stopper unit 420 may include a plurality of second support units 421 coupled on a rotation axis 422. Multiple second support units 421 may be arranged spaced apart from each other on a single rotation axis 422. Multiple second support units 421 arranged on the rotation axis 422 may rotate at the same angle simultaneously. If height adjustment is also required for the second stopper unit 420, it may be placed on a support base 424 that supports the rotation axis 422.

[0063] Referring to Figure 4, the second support portion 421 can be formed in the shape of a hook with a locking hook 421a formed at its end. The side of the discarded solar panel can be fixed by catching on the locking hook 421a when the second support portion 421 rotates downward, for example. On the other hand, when the second support portion 421 rotates upward and moves to a position where the locking hook 421a does not intersect with the discarded solar panel, it will not catch on the locking hook 421a. This operation allows the second support portion 421 to be raised to avoid interference with the blade unit 500 when the blade unit 500 moves. This operation will be explained in detail later.

[0064] As shown in Figures 3 and 4, the second support portion 421 may include a drive unit 423 that rotationally drives the rotating shaft 422. The drive unit 423 may include, for example, a cylinder 423a and an arm 423b that protrudes radially from the rotating shaft 422 connected to and rotating with the cylinder 423a. Therefore, the extension and retraction of the cylinder 423a rotates the arm 423b, and the rotational force of the arm 423b can rotationally drive the rotating shaft 422.

[0065] A joint can be provided at the connection between the arm 423b and the cylinder 423a, allowing it to bend. Furthermore, the other end of the cylinder 423a, which is not connected to the arm 423b, can also be fixed to the frame 100 by a joint, allowing its angle to be changed. Therefore, the cylinder 423a can be appropriately angled in accordance with its extension and retraction movements, allowing the arm 423b to rotate.

[0066] This structure allows for adjustment of the amount of rotation of the rotating shaft 422, and also makes it possible to adjust the position of the second support part 421 more precisely according to the amount of rotation. For example, as shown on the left side of Figure 4, by retracting the cylinder 423a and pulling the arm 423b, the second support part 421 can be adjusted to descend to an appropriate position, and as shown on the right side, by extending the cylinder 423a and pushing the arm 423b, the second support part 421 can be adjusted to rise to an appropriate position.

[0067] Furthermore, by changing the length of the cylinder, the length of the arm, the length of the second support, etc., the rotational position of the second support 421 can be adjusted in a more diverse range of ways. Therefore, the position in which the second support 421 contacts the side surface of the discarded solar panel in the first direction can be changed to a desired position, and the position of the discarded solar panel in the first direction can be adjusted more precisely. Thus, it is not necessary to be limited to the form of the second stopper unit 420 shown in the figure. In this way, the first stopper unit 410 and the second stopper unit 420 can be formed.

[0068] The blade unit 500 is configured as follows:

[0069] Referring to the enlarged views in Figures 3 and 4, the blade unit 500 includes multiple blades. The blade unit 500 may include at least two sequentially arranged blades, namely a first blade 501 and a second blade 502. The first blade 501 moves along the edge of the decomposed solar panel, scraping off sealant (and / or other foreign matter, etc.) adhering to the surface of the decomposed solar panel (particularly the surface of the front glass plate), while the second blade 502 is positioned behind the first blade 501 and similarly moves along the edge of the decomposed solar panel, removing any sealant (and / or other foreign matter, etc.) remaining after the first blade 501 has passed.

[0070] More preferably, the blade unit 500 may further include a third blade 503 positioned behind the second blade 502, as in this embodiment, which moves along the edge of the decomposed solar panel to remove any sealant (and / or other foreign matter, etc.) remaining after the second blade 502 has passed. In this case, the angles that the first blade 501, the second blade 502, and the third blade 503 make with the surface of the decomposed solar panel decrease in stages (see enlarged view of Figure 12).

[0071] In other words, by employing a multi-blade structure, the blade unit 500 can very effectively scrape off and remove sealant and other foreign matter. Each blade (first to third blades) may be formed such that at least one of the angles it makes with the surface of the waste solar panel and the depth to which it presses against the waste solar panel differs from one another, so that the scraping strength increases in stages. For example, as in this embodiment, by employing a structure in which the angles it makes with the surface of the waste solar panel gradually decrease from the first blade 501 to the third blade 503, it is possible to sequentially remove remaining sealant and / or foreign matter with stronger pressure.

[0072] For example, the blade angles can be formed to decrease sequentially, such that the angle between the first blade 501 and the surface of the waste solar panel (see A in Figure 12) is 45 degrees, the angle between the second blade 502 and the surface of the waste solar panel A is 40 degrees, and the angle between the third blade 503 and the surface of the waste solar panel A is 30 degrees. By using a blade unit 500 with multiple blades formed in this way, sealant and other foreign matter can be effectively removed from the four edges of the waste solar panel.

[0073] The blade unit 500 may include, for example, a main body 504 that fixes multiple blades (first to third blades) and a drive structure that moves the main body 504 in parallel along the edge of the discarded solar panel. The drive structure may include, for example, a horizontal rail (see 520 in Figures 3 and 5) positioned on the frame 100 and a slider 510 that is slidably coupled to the horizontal rail 520.

[0074] In other words, the blade unit 500 may be formed in a structure in which the main body 504 is coupled to a slider 510 that moves parallel to a horizontal rail 520. Referring to Figure 5, at least four horizontal rails 520 may be arranged around the first transport unit 210, corresponding to the four edges of the waste solar panel. Thus, each blade unit 500 can be moved along the edge of the waste solar panel to scrape off residual sealant and other foreign matter.

[0075] In other words, the four blade units 500 are positioned on each edge of the decomposed solar panel and can operate independently. Each of the four blade units 500 can remove sealant and / or various foreign matter from each edge as it moves parallel to the first edge (A1 in Figure 8), second edge (A2 in Figure 8), third edge (A3 in Figure 8), and fourth edge (A4 in Figure 8) of the decomposed solar panel.

[0076] A lifting section (see 511 in Figure 3) may be formed between the main body 504 of the blade unit 500 and the slider 510, and the blades of the blade unit 500 can be brought into close contact with the waste solar panel only while the sealant removal operation is in progress using the lifting section 511. The lifting section 511 may be formed, for example, by a cylinder positioned vertically between the slider 510 and the main body 504.

[0077] This structure allows the blade unit 500 to move along and work simultaneously on all four edges of the discarded solar panel. In particular, by employing the cross-movement structure in the first and second directions of the first transport unit 210 and the second transport unit 220, and the support structure on both sides in the first and second directions of the first stopper unit 410 and the second stopper unit 420, even discarded solar panels of different specifications can be precisely positioned diagonally and work can be performed simultaneously on at least two edges.

[0078] In other words, the sealant removal device 1 of the present invention can remove sealant (and / or other foreign matter, etc.) by having two adjacent blade units 500 move along the edges (of the discarded solar panel) arranged in an "inverted L" or "L" shape, and then have the remaining two blade units 500 move along the other edges (of the discarded solar panel) arranged in an "L" or "inverted L" shape to remove sealant (and / or other foreign matter, etc.) [see the operation in Figures 10(a) and 12(a)].

[0079] More specifically, such operation can be performed in a manner in which the first transport unit 210 and the second transport unit 220 transport the waste solar panel to one side, the blade unit 500 removes the sealant while moving along the edges arranged in an "inverted L" or "L" shape, and then the first transport unit 210 and the second transport unit 220 move the waste solar panel diagonally (see the diagonal arrows in Figure 11(a)), the blade unit 500 removes the sealant (and / or other foreign matter, etc.) while moving along the edges arranged in an "L" or "inverted L" shape. After describing the trimmer unit, the operation method of the present invention will be described in more detail below.

[0080] Figure 6 is a front view of the sealant removal device shown in Figure 2. The front view is based on the area where the aforementioned entrance was formed.

[0081] Referring to Figures 3 and 6, the sealant removal apparatus 1 may further include a trimmer unit 600 that forms a step at the edge of the waste solar panel. The trimmer unit 600 allows the edge of the film layer (see Ab in Figure 10) to be pre-processed to facilitate peeling. This prepares the subsequent peeling process for easier execution, and by performing this pre-processing when removing the sealant, the coordination between processes can be further increased. The trimmer unit 600 may be positioned on the frame 100, spaced apart in a first direction, and overlapping the inside of both sides of the waste solar panel in the first direction (i.e., the first and fourth edges mentioned above), as shown in Figure 3.

[0082] The discarded solar panel is positioned so that the glass plate (see Aa in Figure 10) is in contact with the transport unit (see 200 in Figure 3), and the bonded film layer (a layer to which solar cells, encapsulant, backsheet, etc. are bonded to the glass plate using a multi-bonding method - see Ab in Figure 10) is in contact with the pressing unit 300. Therefore, the trimmer unit 600 is positioned above the discarded solar panel, and trimming work can be performed by lowering a grinding blade such as the end mill 601 shown in Figure 6 from the top to the bottom.

[0083] The trimmer unit 600 can remove the edges of the film layer while moving along the edge of the discarded solar panel (see the operation in Figures 10(b) and 12(b)). For this purpose, the trimmer unit 600 may include a horizontal drive unit 610 and a vertical drive unit 620 as shown in Figure 6. The vertical drive unit 423 may be formed by vertically oriented components such as a retractable cylinder, and the horizontal drive unit 423 may be formed by horizontally arranged ball-screw structures, for example.

[0084] With this configuration, the sealant removal device 1 can operate as follows. The operation process of the sealant removal device will be explained in more detail below with reference to Figures 7 to 12.

[0085] Figure 7 is a plan view showing the sealant removal device in Figure 2 with the superstructure removed, and Figure 8 is an operation diagram showing the entry of waste solar panels into the sealant removal device in Figure 7.

[0086] Figure 7 is a plan view of the sealant removal device, showing the upper structure (upper bridge, retaining parts, etc.) removed in order to explain the relative positions of the waste solar panels and the lower structure (bed, transport unit, first and second stopper units). In the following, the planar position of the waste solar panels in the operation diagrams (Figures 8 to 12) is shown based on Figure 7.

[0087] The waste solar panel A can enter the sealant removal device in the direction shown in Figure 8. The direction of entry for the waste solar panel A may be the same as the first direction (see Figure 3) as the transport direction of the first transport unit 210. For example, the waste solar panel A can be brought into the sealant removal device using the aforementioned entrance (see 110a in Figure 3) and an input conveyor (see 10 in Figure 1).

[0088] As shown in the figure, the discarded solar panel A is rectangular and has four edges. The four edges of discarded solar panel A are substantially the same as the four sides of discarded solar panel A (shown as the four sides of the rectangle in the plan view shown). In the drawing, the two sides in the first direction of discarded solar panel A are shown as the first edge A1 and the fourth edge A4, respectively, and the two sides in the second direction are shown as the second edge A2 and the third edge A3, respectively.

[0089] A waste solar panel A can enter the sealant removal device, for example, with its first edge A1 facing the front of the device, as shown in Figure 8. Once the waste solar panel A enters the sealant removal device in this manner, all sealant and foreign matter on all four edges can be removed by performing only two position adjustment operations. In other words, regardless of the specifications of the waste solar panel A, according to the present invention, work can be performed on all four edges with just two position adjustments.

[0090] Figure 9 shows the first position adjustment operation of the discarded solar panel, using a plan view of the sealant removal device shown in Figure 7 and a partial cross-section of the sealant removal device shown in Figure 2. Figure 10 shows the sealant removal operation and trimming operation after the first position adjustment, using a plan view of the sealant removal device shown in Figure 7 and a partial cross-section of the sealant removal device shown in Figure 2.

[0091] First, as shown in Figure 9(a), the waste solar panel A can be positioned so that two adjacent edges (first edge A1 and second edge A2) overlap with the blade unit 500 on each edge (first position adjustment operation). That is, the first transport unit 210 and the second transport unit 220 can move the waste solar panel A in a first and second direction perpendicular to each other, so that the two edges (i.e., the first edge A1 and the second edge A2) arranged perpendicular to the first and second directions as shown can be pushed diagonally so that they overlap with the blade unit 500 located on each edge.

[0092] If the specifications of the discarded solar panel A are larger than those shown in the illustration, all four blade units 500 positioned at the edges will overlap with the discarded solar panel A without the need for such adjustment. However, as shown in the illustration, even if the specifications of the discarded solar panel A are smaller, the first transport unit 210 and the second transport unit 220 can adjust the position of the discarded solar panel A in directions perpendicular to each other, thereby allowing at least two adjacent edges to overlap with the blade units 500 at those edges.

[0093] In this case, as shown in Figure 9(b), the pressing portion 300 is raised and remains in a state where it does not come into contact with the waste solar panel A, while the transport means 221 of the second transport unit 220 is raised and in contact with the waste solar panel A. The transport means 221 can move the waste solar panel A in the second direction while moving to a position higher or lower than the upper end of the transport roller 211 of the first transport unit 210 by the aforementioned lifting means (see 222 in Figure 3).

[0094] When the first transport unit 210 moves to a position lower than the upper end of the transport roller 211, the transport roller 211 of the first transport unit 210 can move the waste solar panel A in a first direction perpendicular to it. As a result of the combination of these movement directions, the waste solar panel A can be moved diagonally, as shown in Figure 9(a). The transport means 221 can be repeatedly raised and lowered while the position adjustment is being performed.

[0095] At this time, the first stopper unit 410 and the second stopper unit 420 can fix the decomposed solar panel A in a more precise position. The first stopper unit 410 has a first support portion 411 that extends to support the side of the decomposed solar panel A (i.e., the second edge A2), as shown in Figure 9(a), and the second stopper unit 420 has a second support portion 421 that rotates downward to support the side of the decomposed solar panel A (i.e., the first edge A1), as shown in Figure 9(b). Each can support the decomposed solar panel A in front of its direction of movement (down and to the left in Figure 9), thereby preventing the movement of the decomposed solar panel A.

[0096] The second support portion 421 can prevent movement by having its end locking hook 421a catch on the edge of the discarded solar panel A. The second support portion 421 on the side of the second stopper unit 420 that does not support an edge (first edge A1) can be raised so as not to come into contact with the discarded solar panel A. In this manner, the positions of any two adjacent edges (first edge A1 and second edge A2) of the discarded solar panel A can first be adjusted to overlap them with the blade unit 500.

[0097] As shown in Figure 10(a), after such positioning, the two blade units 500 on adjacent edges (first edge A1 and second edge A2) can remove sealant and / or other foreign matter while moving along the edges. The two blade units 500 on adjacent edges can remove sealant and / or other foreign matter while moving along edges arranged, for example, in an "L" shape (first edge A1 and second edge A2).

[0098] At this time, as shown in Figure 10(b), the retaining portion 300 descends to press and fix the waste solar panel A, and as shown in Figures 10(a) and (b), the first stopper unit 410 and the second stopper unit 420 can return to their original positions. In other words, the retaining plate 310 descends first to fix the position-adjusted waste solar panel A, and the sealant removal work can be performed with the first stopper unit 410 and the second stopper unit 420 retracted from the movement path of the blade unit 500.

[0099] As shown in the enlarged view of Figure 10, the discarded solar panel A is positioned so that the glass plate Aa faces downward and the film layer Ab bonded to it faces upward. Therefore, the blade unit 500 can be raised by the aforementioned lifting mechanism (see 511 in Figure 3) and come into close contact with the glass plate Aa side. Thus, as shown in Figure 10(b), the blade unit 500, while in close contact with the glass plate Aa, can move along the edge as shown in Figure 10(a) and cleanly remove sealant and / or other foreign matter adhering to the glass plate Aa side of the corresponding edge.

[0100] In this way, while the blade unit 500 is removing the sealant, the trimmer unit 600 can create a step at the edge of the film layer Ab. That is, the trimmer unit 600 can descend by the aforementioned vertical drive unit (see 620 in Figure 6) and remove (trim) the edge of the film layer Ab while in contact with the film layer Ab with the end mill 601. Since the trimmer unit 600 can also move horizontally by the aforementioned horizontal drive unit (see 610 in Figure 6), it can remove the edge of the film layer while moving along the edge of the waste solar panel A (i.e., the first edge A1).

[0101] This method allows for the removal of sealant and foreign matter from any two adjacent edges (first edge A1 and second edge A2) of the discarded solar panel A, and also allows for trimming of the film layer Ab. The work on the remaining edges using the second position adjustment operation is performed as follows.

[0102] Figure 11 shows the second position adjustment operation of the discarded solar panel, using a plan view of the sealant removal device shown in Figure 7 and a partial cross-section of the sealant removal device shown in Figure 2. Figure 12 shows the sealant removal operation and trimming operation after the second position adjustment, using a plan view of the sealant removal device shown in Figure 7 and a partial cross-section of the sealant removal device shown in Figure 2.

[0103] The work on the remaining two edges (third edge A3 and fourth edge A4) can proceed symmetrically to the process described above. The direction of movement of the decomposed solar panels is changed to the opposite direction of the aforementioned movement.

[0104] To perform work on the remaining edges, the position of the discarded solar panel A is reversed, as shown in Figure 11(a), so that the remaining two edges (third edge A3 and fourth edge A4) are again aligned with the blade units 500 on each edge (second position adjustment operation). At this time, the driving direction of the first transport unit 210 and the second transport unit 220 may be changed to the opposite direction from the direction shown in Figure 9. This allows the remaining two edges, which are now arranged at right angles (i.e., the third edge A3 and fourth edge A4), to be pushed in the opposite diagonal direction, as shown in Figure 11(a), so that they are aligned with the blade units 500 positioned on each edge.

[0105] At this time, as shown in Figure 11(b), the pressing portion 300 is raised again, maintaining a state where it does not come into contact with the waste solar panel A, and the transport means 221 of the second transport unit 220 can rise and come into contact with the waste solar panel A. The transport means 221 can move the waste solar panel A in the second direction while moving to a position higher or lower than the upper end of the transport roller 211 of the first transport unit 210, similar to the operation described above.

[0106] Therefore, when the first transport unit 210 moves to a position lower than the upper end of the transport roller 211, the transport roller 211 of the first transport unit 210 can move the waste solar panel A in a first direction perpendicular to it. As a result of the combination of these movement directions, diagonal movement of the waste solar panel A in the opposite direction is achieved, as shown in Figure 11(a).

[0107] Even in this case, the first stopper unit 410 and the second stopper unit 420 can fix the decomposed solar panel A in a more precise position. The first stopper unit 410 can extend its first support portion 411 to support another side of the decomposed solar panel A (i.e., the third edge A3), as shown in Figure 11(a), and the second stopper unit 420 can rotate its second support portion 421 downwards to support yet another side of the decomposed solar panel A (i.e., the fourth edge A4), as shown in Figure 11(b). In other words, each stopper unit can be brought into contact with the decomposed solar panel A in front of the direction of movement of the decomposed solar panel A (upper right in Figure 11) to prevent the movement of the decomposed solar panel A.

[0108] In this case as well, the second support portion 421 can prevent the movement of the discarded solar panel A by having its end locking hook 421a catch on the edge of the discarded solar panel A. In addition, the side of the second stopper unit 420 that does not support the edge (fourth edge A4) can be raised so as not to come into contact with the discarded solar panel A. This method allows the positions of the remaining two edges (third edge A3 and fourth edge A4) of the discarded solar panel A to be adjusted and aligned with the blade unit 500.

[0109] Therefore, even after such positioning, the remaining two blade units 500 positioned on the remaining edges (third edge A3 and fourth edge A4) can quickly remove sealant and / or other foreign matter as they move along the edges, as shown in Figure 12(a). The remaining two blade units 500 can remove sealant and / or other foreign matter as they move along the edges (third edge A3 and fourth edge A4) which are arranged, for example, in an "inverted L" shape, as shown in the figure.

[0110] While the sealant is being removed, as shown in Figure 12(b), the retaining portion 300 descends again to press and fix the waste solar panel A, and as shown in Figures 12(a) and (b), the first stopper unit 410 and the second stopper unit 420 return to their original positions. That is, even at this time, the retaining plate 310 descends first to fix the repositioned waste solar panel A, and the sealant removal work can be performed with the first stopper unit 410 and the second stopper unit 420 retracted from the movement path of the blade unit 500.

[0111] The blade unit 500 can also be raised by the lifting mechanism (see 511 in Figure 3) to make close contact with the glass plate Aa. Therefore, as shown in Figure 12(b), the blade unit 500 can move along the edge as shown in Figure 12(a), while in close contact with the glass plate Aa, and cleanly remove sealant and / or other foreign matter adhering to the glass plate Aa at the corresponding edge.

[0112] While the blade unit 500 removes the sealant, the trimmer unit 600 can also create a step at the edge of the film layer Ab at the corresponding edge (fourth edge A4), as described above. However, if trimming is sufficient on only one edge, the trimming operation can be omitted in either process shown in Figures 10 and 12.

[0113] This operation allows for the effective removal of sealant and other foreign matter from the remaining two edges (third edge A3 and fourth edge A4) of the discarded solar panel A. In other words, by performing the sealant removal operation on all four edges of the discarded solar panel A in succession using the first position adjustment operation in Figure 9 and the second position adjustment operation in Figure 11, the sealant and other foreign matter remaining on the four edges of the discarded solar panel can be removed quickly and effectively.

[0114] In particular, the arrangement of the blades of the blade unit 500 during this operation is highly effective in sealant removal. As shown in the enlarged view of Figure 12, the first blade 501, the second blade 502, and the third blade 503 are arranged so that the angle they make with the surface of the waste solar panel A (especially the surface with the glass plate Aa) decreases in stages, allowing for progressively stronger pressure to be applied to the contact surface. Therefore, even if there is sealant that was not removed by the preceding blades, it can be removed by the subsequent blades through stronger contact. Thus, sealant and other fine foreign matter and residual impurities can be removed very effectively.

[0115] It should be noted that the first position adjustment operation shown in Figure 9 and the second position adjustment operation shown in Figure 11 of this embodiment can be performed in a different order, and the adjacent edges that are worked on simultaneously can also be changed in other embodiments. Therefore, this embodiment is merely one example of a method in which any two adjacent edges of the four edges of the discarded solar panel are worked on first in an "inverted L" or "L" shape, and then the position is adjusted to work on the remaining two edges in an "L" or "inverted L" shape, and the technical concept of the present invention is not limited to this embodiment. Using this method, it is possible to remove sealant and other materials from the four edges of the discarded solar panel using multiple blade units in which multiple blades are formed.

[0116] While embodiments of the present invention have been described above with reference to the attached drawings, those with ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without altering its technical idea or essential features. Therefore, the above embodiments should be understood to be illustrative and not limiting in all respects. [Industrial applicability]

[0117] This invention has industrial applicability because it can be effectively utilized in the processing of waste solar panels (including recyclable dismantling). In particular, by making the surface of the glass plate uniform before the peeling process of waste solar panels, breakage or damage to the glass plate during the processing process can be prevented, which is advantageous in terms of resource recycling or circulation. [Explanation of symbols]

[0118] 1. Equipment for removing sealant from discarded solar panels 10. Conveyor for loading / unloading 20. Conveyor for unloading 100 frames 110 beds 120 Upper Bridge 121 Vertical Bar 200 transport units 210 First transport unit 211 Conveyor roller 212 Horizontal support platform 220 Second transport unit 221 Conveying means 222 Lifting and lowering means 300 Pressing part 310 Retaining plate 320,510 sliders 330 Lifting drive unit 331,423a Cylinder 330b Connecting member 410 First Stopper Unit 411 1st support part 411a Support plate 411b Connecting bar 412 Moving parts 420 Second Stopper Unit 421 2nd support part 421a Locking hook 422 Rotating shaft 423 Drive Unit 423b Arm 500 Blade Units 501 First Blade 502 Second Blade 503 Third Blade 504 Main Unit 511 Lifting section 520 Horizontal Rail 600 Trimmer Unit 601 End Mill 610 Horizontal drive unit 620 Vertical drive unit A. Waste solar panels Aa Glass plate Ab film layer A1 First Edge A2 Second Edge A3 Third Edge A4 4th Edge

Claims

1. Frame and, A transport unit provided on the frame for transporting waste solar panels in a horizontal direction, A pressing section descends from the top of the transport unit and presses and fixes the waste solar panel, A sealant removal device for a waste solar panel, comprising a blade unit including a first blade that adheres closely to the waste solar panel and moves along the edge of the waste solar panel to scrape and remove sealant adhering to the surface of the waste solar panel, and a second blade positioned behind the first blade and moving along the edge of the waste solar panel to remove any remaining sealant after the first blade has passed.

2. The first blade and the second blade are The sealant removal device for a waste solar panel according to claim 1, wherein at least one of the angle formed with the surface of the waste solar panel and the depth at which the waste solar panel is pressed is formed to be different from each other.

3. The aforementioned transport unit is The apparatus for removing sealant from a waste solar panel according to claim 2, comprising a first conveying unit consisting of a plurality of conveying rollers for conveying the waste solar panel in a first direction, and at least one second conveying unit for conveying the waste solar panel in a second direction perpendicular to the first direction.

4. The second transport unit is, A conveying means for transporting the waste solar panels in the second direction, The apparatus for removing sealant from waste solar panels according to claim 3, further comprising a lifting means for moving the conveying means up and down to raise the conveying means above the upper end of the conveying roller or lower it below the upper end of the conveying roller.

5. The waste solar panel sealant removal device according to claim 3, further comprising a plurality of first stopper units provided on both sides of the first transport unit, each of which at least a portion moves in the second direction to support both sides of the waste solar panel in the second direction.

6. The first stopper unit is, The system includes a first support portion that supports the side surface of the discarded solar panel, and a movable portion that extends and retracts the first support portion in the second direction. The apparatus for removing sealant from a waste solar panel according to claim 5, wherein the movable part separates the first support part from the waste solar panel when the blade unit removes the sealant from the waste solar panel.

7. The apparatus for removing sealant from a waste solar panel according to claim 3, further comprising a rotating shaft arranged parallel to the second direction, a second support portion coupled to the rotating shaft and supporting the side surface of the waste solar panel by the rotation of the rotating shaft, and a plurality of second stopper units that rotate the rotating shaft and support both sides of the waste solar panel in the first direction.

8. The second stopper unit is, The waste solar panel sealant removal device according to claim 7, wherein when the blade unit removes the sealant from the waste solar panel, the rotating shaft is rotated to separate the second support portion from the waste solar panel.

9. The blade units consist of four blades arranged at each edge of the discarded solar panel, and operate independently. After removing the sealant while two blade units on adjacent edges move along edges arranged in an "inverted L" or "L" shape, The sealant removal device for waste solar panels according to claim 3, wherein the remaining two blade units remove the sealant by moving along edges arranged in an "L" shape or an "inverted L" shape.

10. The first and second transport units transport the waste solar panels to one side, and the blade unit removes the sealant while moving along the edges arranged in an "inverted L" or "L" shape. The sealant removal apparatus for waste solar panels according to claim 9, wherein the first transport unit and the second transport unit move the waste solar panel in a diagonal direction, and the blade unit removes the sealant while moving along edges arranged in an "L" shape or an "inverted L" shape.

11. The aforementioned blade unit is The system further includes a third blade positioned behind the second blade, which moves along the edge of the waste solar panel to remove any sealant remaining after the second blade has passed, The sealant removal device for a waste solar panel according to claim 2, wherein the angle between the first blade, the second blade, and the third blade and the surface of the waste solar panel decreases in stages.

12. The waste solar panel sealant removal apparatus according to claim 1, wherein the waste solar panel is arranged such that the glass plate is in contact with the transport unit and the film layer is in contact with the pressing portion, and further includes a trimmer unit positioned above the waste solar panel and moving along the edge of the waste solar panel to remove the end of the film layer.

Images