Photovoltaic backboard recycling device

Abstract

The utility model provides a photovoltaic backplane recovery device, which relates to the technical field of photovoltaic backplane recovery and comprises a transmission platform, a destressing mechanism is arranged at the top of the transmission platform and close to the left side, and the destressing mechanism can crush and destress photovoltaic backplanes. After destressing is completed, further treatment is conducted through a heating assembly and a conveying assembly located on the right side of the destressing mechanism, through the design of the destressing mechanism and the thermal cutting mechanism, the destressing mechanism can conduct pre-stress removal before the photovoltaic panel is treated, internal stress of the photovoltaic panel can be eliminated in advance, the risk that glass is suddenly broken during cutting is reduced, and the service life of the photovoltaic panel is prolonged. And meanwhile, the cutting precision and quality can be improved, the subsequent separation and recovery process is smoother, and the overall recovery efficiency and the integrity of materials are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic backplane recycling, in particular to a device for photovoltaic backplane recycling. Background Technique

[0002] The solar backplane is located on the back of the solar panel, playing a role in protecting and supporting the battery cells, and having reliable insulation, water resistance, and aging resistance. The initial solar backplane has a three-layer structure (PVDF / PET / PVDF). The outer protective layer PVDF has good environmental erosion resistance, the middle layer is a PET polyester film with good insulation performance, and the inner layer PVDF and EVA have good bonding performance. Later, in order to reduce costs and consider environmental protection, some backplane structures without fluorine appeared, such as the APE structure backplane.

[0003] For example, a device for photovoltaic panel backplane recycling disclosed in Chinese patent literature (Publication No.: CN221017963U). This patent includes a conveying mechanism for conveying photovoltaic panels. The conveying mechanism includes a first conveying component, a second conveying component, and a third conveying component arranged in sequence. The second conveying component can be lifted; a heating mechanism; a pressing and driving mechanism; a cutting mechanism arranged above the second conveying component for cutting the backplane of the photovoltaic panel; a collecting mechanism including a first collector. The first collector is arranged below the conveying end of the second conveying component, and the first collector is open on one side close to the second conveying component for collecting the cut backplane. The utility model softens the EVA material connecting the backplane and the battery cells by heating, then cuts the backplane with a cutter, and then conveys the cut backplane to the first collector by lowering the height of the second conveying component. There is no need to grind the backplane, no dust will be generated, which is convenient for reducing environmental pollution and the impact on staff.

[0004] However, the above solution still has the following problems when implemented:

[0005] Before the backplane of the photovoltaic panel is cut, there is a lack of a stress relief mechanism, which may cause the pressing and driving mechanism to crush the glass plate of the photovoltaic panel during operation. During the crushing process, the photovoltaic panel will surely vibrate, and the device cuts it during the pressing process, which will cause displacement during cutting due to the vibration generated by the glass explosion. Since the part of the backplane to be cut is relatively thin, there may be phenomena such as cutting fracture and deviation, resulting in incomplete cutting separation, affecting recycling. At the same time, although the device uses a heating mechanism to soften it in advance, after the softening is completed, it still needs to displace for a long time, which will cause the subsequent photovoltaic backplane to cool, thereby affecting cutting, resulting in difficult cutting or cutting adhesion. Therefore, we propose a device for photovoltaic backplane recycling. Content of the Utility Model

[0006] The purpose of the present utility model is to solve the deficiencies existing in the prior art. Before the backplane of the photovoltaic panel is cut, there is a lack of a stress relief mechanism, which may cause the pressing drive mechanism to crush the glass plate of the photovoltaic panel during operation. During the crushing process, the photovoltaic panel will surely vibrate, and the device cuts it during the pressing process, which will cause displacement during cutting due to the vibration generated by the glass bursting. Since the part of the backplane to be cut is relatively thin, there may be phenomena such as cutting fracture and deviation, resulting in incomplete cutting separation and affecting recycling. At the same time, although the device uses a heating mechanism to soften it in advance, after the softening is completed, it still needs to be displaced for a long time, which will cause the photovoltaic backplane in the latter section to cool, thereby affecting cutting and causing cutting difficulties or cutting adhesion.

[0007] In order to achieve the above object, the present utility model adopts the following technical solutions:

[0008] A device for recycling photovoltaic backplanes, including a transmission platform. At the top of the transmission platform and near the left side, there is a stress relief mechanism, which can perform stress relief treatment on the photovoltaic backplane by crushing it. After stress relief is completed, it will be further processed by a heating component and a conveying component located on the right side of the stress relief mechanism. After the processing is completed, it will be subjected to thermal cutting treatment by a thermal cutting mechanism on the right side of the conveying component. During the thermal cutting process, an attracting mechanism located at the connection of the thermal cutting mechanism will also collect the waste gas generated during thermal cutting and send it to a purifier for centralized treatment.

[0009] Preferably, the stress relief mechanism includes a first mounting frame. At the top of the first mounting frame, there are two hydraulic push rods. At the bottom of the two hydraulic push rods, there is a rolling platform fixedly connected. At the bottom of the rolling platform, there are several rolling teeth.

[0010] Preferably, on both side walls inside the first mounting frame, there are two sliding grooves respectively. Inside the two sliding grooves, there are sliding blocks slidably connected. The four sliding blocks are all fixed to the rolling platform.

[0011] Preferably, the thermal cutting mechanism includes a second mounting frame. On the right side wall of the second mounting frame and near the top, there is a mounting frame. On the right side wall of the mounting frame, there is a driving motor connected. On the output end of the driving motor, there is a lead screw, and there is a slider on the lead screw.

[0012] Preferably, the thermal cutting mechanism further includes a cutting knife. On the front and back sides of the cutting knife, there are connecting plates respectively. The connecting plate near the back side is connected to the slider, and the connecting plate near the front side is connected to an auxiliary limiting sliding groove on the front side inside the second mounting frame.

[0013] Preferably, a power supply platform is further provided on the top of the second mounting bracket. A connecting wire is provided at the output end of the power supply platform, and the connecting wire is connected to the cutting knife.

[0014] Preferably, the suction mechanism includes a mounting shell and a connecting pipe. An air pump is provided inside the mounting shell. Suction pipes are provided on the front and back sides of the connecting pipe. A plurality of suction ports are formed on each of the two suction pipes, and the suction pipe near the back side is connected to the air pump.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, through the design of the stress relief mechanism and the thermal cutting mechanism, the stress relief mechanism can remove the prestress before the photovoltaic panel is processed, can eliminate the internal stress of the photovoltaic panel in advance, reduce the risk of sudden glass breakage during cutting, ensure operation safety, and at the same time help to improve the cutting accuracy and quality, make the subsequent separation and recycling process smoother, improve the overall recycling efficiency and the integrity of the material. The thermal cutting mechanism has obvious advantages in the cutting of the photovoltaic panel backplane. It can achieve high-precision cutting, ensure smooth and neat edges, improve the cutting quality, can operate quickly and efficiently, adapt to the material characteristics of the photovoltaic panel backplane, non-contact cutting avoids material deformation, can also process complex shapes, reduce material waste, and improve the recycling efficiency and benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of a device for recycling a photovoltaic backplane provided by the present utility model;

[0018] Figure 2 It is a schematic diagram of the stress relief mechanism of a device for recycling a photovoltaic backplane provided by the present utility model;

[0019] Figure 3 It is a schematic diagram of the thermal cutting mechanism of a device for recycling a photovoltaic backplane provided by the present utility model;

[0020] Figure 4 It is a schematic diagram of the connection between the slider and the lead screw of a device for recycling a photovoltaic backplane provided by the present utility model;

[0021] Figure 5 It is a schematic diagram of the position of the air pump of a device for recycling a photovoltaic backplane provided by the present utility model.

[0022] Legend Explanation: 1. Transmission platform; 2. Stress-relieving mechanism; 21. First mounting frame; 22. Hydraulic push rod; 23. Sliding groove; 24. Sliding block; 25. Rolling platform; 26. Rolling teeth; 3. Heating component; 4. Conveyor component; 5. Thermal cutting mechanism; 51. Second mounting frame; 52. Mounting frame; 53. Driving motor; 54. Lead screw; 55. Slide block; 56. Connecting plate; 57. Cutting tool; 58. Power supply platform; 59. Connecting wire; 510. Auxiliary limit sliding groove; 6. Suction mechanism; 61. Mounting housing; 62. Air pump; 63. Suction pipe; 64. Suction port; 65. Connecting pipe. Detailed Implementation Manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant content. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate 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 intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Embodiment 1

[0028] As Figures 1-5As shown in the figure, the utility model provides a technical solution: a device for recycling photovoltaic backsheets, including a transmission platform 1. A stress relief mechanism 2 is provided at the top of the transmission platform 1 and near the left side. The stress relief mechanism 2 can crush and relieve stress on the photovoltaic backsheet. After stress relief, it will be further processed by a heating component 3 and a conveying component 4 located on the right side of the stress relief mechanism 2. After the processing is completed, it will be subjected to thermal cutting treatment by a thermal cutting mechanism 5 on the right side of the conveying component 4. And during the thermal cutting process, an attracting mechanism 6 located at the connection of the thermal cutting mechanism 5 will also collect the waste gas generated during thermal cutting and send it to a purifier for centralized treatment. Through the design of the stress relief mechanism 2 and the thermal cutting mechanism 5, the stress relief mechanism 2 can remove the prestress before processing the photovoltaic panel, can eliminate the internal stress of the photovoltaic panel in advance, reduce the risk of sudden glass breakage during cutting, ensure operation safety, and at the same time help improve the cutting accuracy and quality, make the subsequent separation and recycling process smoother, and improve the overall recycling efficiency and material integrity. The thermal cutting mechanism 5 has obvious advantages in cutting the backsheet of the photovoltaic panel. It can achieve high-precision cutting, ensure smooth and neat edges, improve the cutting quality, can operate quickly and efficiently, adapt to the material characteristics of the backsheet of the photovoltaic panel, non-contact cutting avoids material deformation, can also process complex shapes, reduce material waste, and improve the recycling efficiency and benefits.

[0029] Embodiment 2

[0030] As Figures 1-5 shown in the figure, the utility model provides a technical solution: the stress relief mechanism 2 includes a first mounting frame 21. Two hydraulic push rods 22 are provided at the top of the first mounting frame 21. The bottoms of the two hydraulic push rods 22 are fixedly connected to a rolling platform 25. A plurality of rolling teeth 26 are provided at the bottom of the rolling platform 25. The photovoltaic backsheet will be placed on the transmission platform 1. At this time, the stress relief mechanism 2 will start to work, and the hydraulic push rods 22 will drive the rolling platform 25 to displace.

[0031] Two sliding grooves 23 are respectively opened on both inner side walls of the first mounting frame 21. Two sliding blocks 24 are respectively slidably connected inside the two sliding grooves 23. The four sliding blocks 24 are all fixed to the rolling platform 25. The rolling platform 25 will slide on the sliding grooves 23 through the sliding blocks 24, and thus is more stable during the downward movement. During the downward pressing process, the rolling teeth 26 will squeeze the photovoltaic backsheet, and thus the stress inside the photovoltaic backsheet can be released.

[0032] The hot cutting mechanism 5 includes a second mounting bracket 51. An installation frame 52 is provided on the right side wall of the second mounting bracket 51 near the top. A driving motor 53 is connected to the right side wall of the installation frame 52. A lead screw 54 is provided at the output end of the driving motor 53. A slider 55 is provided on the lead screw 54. The driving motor 53 will start and drive the lead screw 54 to rotate, so that the slider 55 can drive the connecting plate 56 to displace, and then drive the cutting knife 57 to move. While the cutting knife 57 is moving, the connecting plate 56 at the other end will slide on the auxiliary limit chute 510 synchronously.

[0033] The hot cutting mechanism 5 further includes a cutting knife 57. Connecting plates 56 are provided on both the front and back sides of the cutting knife 57. The connecting plate 56 near the back side is connected to the slider 55, and the connecting plate 56 near the front side is connected to the auxiliary limit chute 510 on the front side inside the second mounting bracket 51.

[0034] A power supply platform 58 is further provided on the top of the second mounting bracket 51. A connecting wire 59 is provided at the output end of the power supply platform 58. The connecting wire 59 is connected to the cutting knife 57. The power supply platform 58 will energize the cutting knife 57 through the connecting wire 59, and then the cutting knife 57 can be heated.

[0035] The suction mechanism 6 includes an installation housing 61 and a connecting pipe 65. An air pump 62 is provided inside the installation housing 61. Suction pipes 63 are provided on both the front and back sides of the connecting pipe 65. A number of suction ports 64 are opened on both suction pipes 63. The suction pipe 63 near the back side is connected to the air pump 62. The air pump 62 will work, adsorb the waste gas through the suction ports 64, and adsorb it to the air pump 62 through the suction pipes 63 and the connecting pipe 65. The other end of the air pump 62 is connected to a purification device (since the purification device is a mature technology in the prior art, it is not shown in the figure), and then the waste gas can be transported to the purification device to complete the purification work.

[0036] Working process of the utility model: When using a device for recycling photovoltaic backsheets, first, the photovoltaic backsheet is placed on the transfer platform 1. At this time, the stress relief mechanism 2 starts to work. The hydraulic push rod 22 drives the rolling platform 25 to move. The rolling platform 25 slides on the sliding groove 23 through the sliding block 24, and thus is more stable during the downward movement. During the downward pressing process, the rolling teeth 26 squeeze the photovoltaic backsheet, thereby releasing the stress inside the photovoltaic backsheet. After this operation process is completed, it will go through the same heating component 3 and conveying component 4 processes as in the comparative document, and finally reach the thermal cutting mechanism 5. First, the power supply platform 58 energizes the cutting knife 57 through the connecting wire 59, and then the cutting knife 57 can be heated. After the heating is completed, the driving motor 53 starts and drives the lead screw 54 to rotate, so that the slider 55 drives the connecting plate 56 to move, and then drives the cutting knife 57 to move. While the cutting knife 57 is moving, the connecting plate 56 at the other end slides synchronously on the auxiliary limiting sliding groove 510, and then the photovoltaic backsheet can be thermally cut. It is used in cooperation with the conveying component 4. Through the conveying and pressing of the transfer platform 1 and the advancement of the thermal cutting mechanism 5, the opposite operation can make the cutting faster and more stable, and improve the cutting efficiency. While thermally cutting, the suction mechanism 6 also starts synchronously. The air pump 62 works, adsorbs the waste gas through the suction port 64, and adsorbs it to the air pump 62 through the suction pipe 63 and the connecting pipe 65. The other end of the air pump 62 is connected to a purification device (since the purification device is a mature technology in the prior art, it is not shown in the figure), and then the waste gas can be transported to the purification device to complete the purification work.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic backsheet recycling device, comprising a transmission platform (1), characterized in that: A stress relief mechanism (2) is provided on the top and near the left side of the transmission platform (1). The stress relief mechanism (2) can crush and relieve stress on the photovoltaic back panel. After the stress relief is completed, it will be further processed by a heating component (3) and a conveying component (4) located on the right side of the stress relief mechanism (2). After the processing is completed, it will be thermally cut by a thermal cutting mechanism (5) on the right side of the conveying component (4). During the thermal cutting process, a suction mechanism (6) located at the connection of the thermal cutting mechanism (5) will also collect the waste gas generated during the thermal cutting and send it to the purifier for centralized treatment.

2. The photovoltaic backsheet recycling device according to claim 1, characterized in that: The stress relief mechanism (2) comprises a first mounting frame (21), the top of which is provided with two hydraulic push rods (22), the bottoms of the two hydraulic push rods (22) are fixedly connected with a rolling platform (25), and the bottom of the rolling platform (25) is provided with a plurality of rolling teeth (26).

3. The photovoltaic backsheet recycling device according to claim 2, characterized in that: Two sliding grooves (23) are provided on both side walls inside the first mounting frame (21), and sliding blocks (24) are slidably connected inside the two sliding grooves (23), and the four sliding blocks (24) are fixed to the rolling platform (25).

4. The photovoltaic backsheet recycling device according to claim 1, characterized in that: The thermal cutting mechanism (5) comprises a second mounting frame (51), a mounting frame (52) being provided on the right side wall of the second mounting frame (51) and close to the top, a driving motor (53) being connected to the right side wall of the mounting frame (52), a screw rod (54) being provided on the output end of the driving motor (53), and a slider (55) being provided on the screw rod (54).

5. The photovoltaic backsheet recycling device according to claim 4, characterized in that: The thermal cutting mechanism (5) further comprises a cutting knife (57), and connecting plates (56) are provided on the front and back sides of the cutting knife (57), the connecting plate (56) being connected to the slider (55) near the back side, and the connecting plate (56) being connected to the auxiliary limiting sliding groove (510) located on the front side inside the second mounting frame (51) near the front side.

6. The photovoltaic backsheet recycling device according to claim 5, characterized in that: A power supply platform (58) is also provided on the top of the second mounting frame (51), and a connecting line (59) is provided at the output end of the power supply platform (58), and the connecting line (59) is connected to the cutting knife (57).

7. The photovoltaic backsheet recycling device according to claim 1, characterized in that: The suction mechanism (6) comprises a mounting shell (61) and a connecting pipe (65), wherein an air pump (62) is arranged inside the mounting shell (61), and adsorption tubes (63) are arranged on the front and back sides of the connecting pipe (65), and a plurality of adsorption ports (64) are provided on the two adsorption tubes (63), and the adsorption tube (63) near the back side is connected to the air pump (62).

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