Photovoltaic module scrap screening device and photovoltaic module recycling system

Abstract

Provided are a photovoltaic module scrap screening device and a photovoltaic module recycling system. The photovoltaic module scrap screening device (100) comprises a first screening assembly (1); the first screening assembly (1) comprises a first support (11), a first image acquisition module (12), and a first purging unit (13); the first support (11) comprises a first feed port (111), a first discharge port (112), and a second discharge port (113); the first image acquisition module (12) is arranged on the support and corresponds to the first feed port (111); the first purging unit (13) is arranged on the first support (11), and the first purging unit (13) comprises first nozzles for spraying air; there are a plurality of first nozzles, which are spaced apart in a second horizontal direction, and each first nozzle is open towards a direction of pointing from the first discharge port (112) to the second discharge port (113); and the first purging unit (13) is connected to the first image acquisition module (12). The photovoltaic module scrap screening device can separate glass shards from silicon wafers in photovoltaic module scraps.

Description

Photovoltaic module crushing screening device and photovoltaic module recycling system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on October 24, 2023, with application number 202322860010.X and invention name “Photovoltaic Module Crushed Material Screening Device and Photovoltaic Module Recycling System”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of photovoltaic module recycling equipment, and in particular, to a photovoltaic module crushing screening device and a photovoltaic module recycling system. Background Art

[0004] Photovoltaic modules, composed of multiple individual solar cells connected in series and parallel and packaged together, are the core component of a solar power station. The structure of a photovoltaic module includes encapsulating glass, EVA film, solar cells, and a backsheet. Crystalline silicon photovoltaic modules have a lifespan of approximately 25 years, and a wave of end-of-life recycling is approaching. Crystalline silicon photovoltaic modules require harmless disposal and resource recycling. During recycling, photovoltaic modules are prone to collisions and natural damage during transportation and loading and unloading, resulting in breakage. The glass fragments and silicon wafers in broken photovoltaic modules are mixed together, making them difficult to separate and recycle.

[0005] Summary of the Invention

[0006] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, an embodiment of the present application proposes a photovoltaic module scrap screening device, which can separate glass fragments from silicon wafers in photovoltaic module scraps, thereby achieving classified processing of glass fragments and silicon wafers.

[0008] The embodiment of the present application further provides a photovoltaic module recycling system, which includes the photovoltaic module crushing screening device of the above embodiment.

[0009] The photovoltaic module crushing screening device of the embodiment of the present application includes: a first screening component, the first screening component includes a first bracket, a first image acquisition module and a first purge, the first bracket includes a first feed port, a first discharge port and a second discharge port, the first discharge port and the second discharge port are both located below the first feed port, the first discharge port and the second discharge port are spaced apart in the first horizontal direction, the first image acquisition module is arranged on the bracket and corresponds to the first feed port, so that the first image acquisition module obtains the position information of the first preset material in the crushed material, the first purge is arranged on the first bracket, the first purge includes a first nozzle for spraying gas, there are multiple first nozzles, the multiple first nozzles are spaced apart in the second horizontal direction, and each of the first nozzles is open in the direction of the first discharge port pointing to the second discharge port, the first purge is connected to the first image acquisition module so that the multiple first nozzles spray gas toward the corresponding first preset material.

[0010] The photovoltaic module scrap sorting device of the present embodiment utilizes a first image acquisition module to capture positional information of one of the glass shards and silicon wafers in the scrap, thereby accurately determining the position of the glass shards and silicon wafer in the scrap. A first purge device then purges the glass shards and silicon wafer, thereby separating the glass shards and silicon wafer from the scrap, thereby achieving separation of the glass shards and silicon wafers.

[0011] Therefore, the photovoltaic module scrap screening device of the embodiment of the present application can separate the glass fragments and silicon wafers in the photovoltaic module scraps.

[0012] In some embodiments, the photovoltaic module crushing screening device of the embodiment of the present application further includes: a first conveyor belt, the first conveyor belt includes a first feed end and a first discharge end, and the first discharge end is connected to the first feed port.

[0013] In some embodiments, the first screening assembly further includes: a first partition plate, the first partition plate being disposed on the bracket, the first partition plate being located between the first discharge port and the second discharge port, so that the first partition plate separates the first discharge port and the second discharge port. In some embodiments, the photovoltaic module crushing screening device of the embodiment of the present application also includes: a second screening component, the second screening component includes a second bracket, a second image acquisition module and a second purge, the second bracket includes a second feed port, a third discharge port and a fourth discharge port, the second feed port is connected to the first discharge port, the third discharge port and the fourth discharge port are both located below the second feed port, and the third discharge port and the fourth discharge port are spaced apart in the first horizontal direction; the second image acquisition module is arranged on the bracket and corresponds to the second feed port, so that the second image acquisition module obtains the position information of the second preset material in the crushed material, the second purge is arranged on the second bracket, the second purge includes a second nozzle for spraying gas, there are multiple second nozzles, the multiple second nozzles are spaced apart in the second horizontal direction, and each second nozzle is open in the direction of the third discharge port pointing to the fourth discharge port, the second purge is connected to the second image acquisition module so that the multiple second nozzles spray gas toward the corresponding second preset material.

[0014] In some embodiments, the photovoltaic module crushing screening device of the embodiment of the present application also includes: a second conveyor belt, the second conveyor belt includes a second feed end and a second discharge end, the second feed end cooperates with the first discharge port, and the second discharge end cooperates with the second feed port.

[0015] In some embodiments, the second screening assembly further includes: a second partition plate, the second partition plate is disposed on the second bracket, and the second partition plate is located between the third discharge port and the fourth discharge port, so that the second partition plate separates the third discharge port and the fourth discharge port.

[0016] In some embodiments, the first bracket and the second bracket are connected, the first bracket is located above the second bracket, the second conveyor belt is provided on the second bracket, and the second feed end is located below the first discharge port, and the second feed end corresponds to the first discharge port.

[0017] In some embodiments, the first image acquisition module is a camera; and / or the second image acquisition module is a camera.

[0018] In some embodiments, the photovoltaic module crushing screening device of the embodiment of the present application also includes: a strip screening assembly, the strip screening assembly includes a third feed port and a fifth discharge port, the fifth discharge port is connected to the first feed port, and the third feed port is suitable for connecting with the outside world.

[0019] The photovoltaic module recycling system of the embodiment of the present application includes the photovoltaic module crushing material screening device described in any of the above embodiments.

[0020] The photovoltaic module scrap screening device of the embodiment of the present application can separate the glass fragments from the silicon wafers in the photovoltaic module scraps, thereby realizing the classification processing of the glass fragments and silicon wafers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of a photovoltaic module crushing screening device according to an embodiment of the present application.

[0022] FIG2 is a schematic structural diagram of a photovoltaic module crushing screening device according to an embodiment of the present application.

[0023] Figure markings: Photovoltaic module crushing screening device 100; first screening component 1; first bracket 11; first feed port 111; first discharge port 112; second discharge port 113; first image acquisition module 12; first purge device 13; first partition plate 14; first conveyor belt 2; first discharge end 21; second screening component 3; second bracket 31; second feed port 311; third discharge port 312; fourth discharge port 313; second image acquisition module 32; second purge device 33; second partition plate 34; second conveyor belt 4; second discharge end 41; strip screening component 5; third feed port 51; fifth discharge port 52. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present application, but should not be understood as limiting the present application.

[0025] The photovoltaic module crushing material screening device 100 according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0026] As shown in FIG. 1 and FIG. 2 , the photovoltaic module crushing material screening device 100 according to the embodiment of the present application includes a first screening component 1 .

[0027] The first screening component 1 includes a first bracket 11, a first image acquisition module 12 and a first blower 13. The first bracket 11 includes a first feed port 111, a first discharge port 112 and a second discharge port 113. The first discharge port 112 and the second discharge port 113 are both located below the first feed port 111. The first discharge port 112 and the second discharge port 113 are spaced apart in the first horizontal direction.

[0028] The first image acquisition module 12 is mounted on a bracket and corresponds to the first material inlet 111, so that the first image acquisition module 12 can obtain position information of a first predetermined material in the shredded material. The first predetermined material is one of glass shards and silicon wafers. The first image acquisition module 12 can capture infrared spectra of the glass shards and silicon wafers (glass shards are light-transmitting, while silicon wafers are opaque, resulting in different infrared spectra for glass shards and silicon wafers), thereby determining the position of the first predetermined material in the shredded material.

[0029] The first purge device 13 is mounted on the first bracket 11 and includes a first nozzle for spraying gas. The first nozzles are multiple and spaced apart in the second horizontal direction. Each first nozzle opens toward the first discharge port 112 and toward the second discharge port 113. The first purge device 13 is connected to the first image acquisition module 12 so that the multiple first nozzles spray gas toward the corresponding first predetermined material.

[0030] The specific implementation of the photovoltaic module crushing material screening device 100 according to the embodiment of the present application is described below with reference to the accompanying drawings.

[0031] Crushed material enters the first support 11 from the first feed port 111 and falls. The first image acquisition module 12 collects position information of a first predetermined material in the falling crushed material at first predetermined intervals. For example, the first image acquisition module 12 collects information every 0.3 seconds. The first image acquisition module 12 transmits the collected position information of the first predetermined material to the first purger 13 in real time. Based on the received position information of the first predetermined material, the first purger 13 causes a portion of the plurality of first nozzles to emit airflow corresponding to the position of the first predetermined material in the falling crushed material. This causes the first predetermined material to deflect toward the second discharge port 113 and be discharged through the second discharge port 113. The remaining crushed material not purged by the first purger 13 is discharged through the first discharge port 112.

[0032] The photovoltaic module scrap screening device 100 of the present embodiment uses the first image acquisition module 12 to collect positional information of one of the glass shards and silicon wafers in the scrap, thereby accurately determining the position of the glass shards and silicon wafer in the scrap. The first purge module 13 then purges the glass shards and silicon wafer, thereby separating the glass shards and silicon wafer from the scrap, thereby achieving separation of the glass shards and silicon wafers.

[0033] Therefore, the photovoltaic module debris screening device 100 according to the embodiment of the present application can separate glass fragments from silicon wafers.

[0034] To make this application easier to understand, the photovoltaic module crushing screening device 100 according to the embodiment of this application is further described below using the example where the first horizontal direction is consistent with the left-right direction and the example where the second horizontal direction is consistent with the front-back direction. The first horizontal direction and the second horizontal direction are both perpendicular to the up-down direction.

[0035] In some embodiments, as shown in FIG2 , the photovoltaic module scrap screening device 100 of the embodiment of the present application further includes a first conveyor belt 2. The first conveyor belt 2 includes a first feed end (not shown) and a first discharge end 21. The first discharge end 21 is connected to the first feed port 111. This facilitates the conveyance of scraps to the first feed port 111 via the first conveyor belt 2, thereby improving the practicality of the photovoltaic module scrap screening device 100 of the embodiment of the present application.

[0036] In some embodiments, as shown in FIG2 , the first screening assembly 1 further includes a first separator 14 , which is mounted on a bracket and positioned between the first discharge port 112 and the second discharge port 113 , such that the first separator 14 separates the first discharge port 112 from the second discharge port 113 . The separation provided by the first separator 14 prevents the separated materials from remixing during their fall, thereby improving the screening effect of the photovoltaic module crushing screening device 100 according to the embodiment of the present application.

[0037] In some embodiments, as shown in FIG. 1 and FIG. 2 , the photovoltaic module crushing material screening device 100 of the embodiment of the present application further includes a second screening component 3 .

[0038] The second screening component 3 includes a second bracket 31, a second image acquisition module 32 and a second purge 33. The second bracket 31 includes a second feed port 311, a third discharge port 312 and a fourth discharge port 313. The second feed port 311 is connected to the first discharge port 112. The third discharge port 312 and the fourth discharge port 313 are both located below the second feed port 311. The third discharge port 312 and the fourth discharge port 313 are spaced apart in the first horizontal direction.

[0039] The second image acquisition module 32 is mounted on the support and corresponds to the second feed port 311. The second image acquisition module 32 is configured to obtain position information of a second predetermined material in the shredded material. The second predetermined material is the other of the glass fragments and the silicon wafer, thereby determining the position of the second predetermined material in the shredded material.

[0040] The second purge device 33 is mounted on the second bracket 31 and includes a plurality of second nozzles for spraying gas. The plurality of second nozzles are spaced apart in the second horizontal direction, and each second nozzle opens in a direction from the third discharge port 312 to the fourth discharge port 313. The second purge device 33 is connected to the second image acquisition module 32 so that the plurality of second nozzles spray gas toward the corresponding second predetermined material.

[0041] After the scraps are purged by the first purge device 13, a first predetermined material and scrap residue are obtained. The residue is mostly composed of the second predetermined material, but it may be contaminated with impurities and therefore requires further screening. The scrap residue is discharged from the first discharge port 112 and enters the second support 31 through the second feed port 311, where it falls. The second image acquisition module 32 collects position information of the second predetermined material in the falling scraps at a second predetermined interval, for example, every 0.4 seconds. The second image acquisition module 32 transmits the collected position information of the second predetermined material to the second purge device 33 in real time. Based on the received position information of the second predetermined material, the second purge device 33 causes a portion of the plurality of second nozzles to emit airflow corresponding to the position of the second predetermined material in the falling scrap residue. The second predetermined material is deflected toward the fourth discharge port 313, where it is discharged. The residue not purged by the second purge device 33 is discharged through the third discharge port 312.

[0042] In other words, the second image acquisition module 32 captures the positional information of the glass shards and the other silicon wafer in the scrap residue, thereby accurately determining their positions within the scrap residue. The second purge device 33 then purges the glass shards and the other silicon wafer, separating them from the scrap, thus completing the separation of the glass shards and silicon wafer. This also improves the purity of the glass shards and silicon wafer after the scrap residue is separated.

[0043] In some embodiments, as shown in Figures 1 and 2 , the photovoltaic module scrap screening device 100 of the present embodiment further includes a second conveyor belt 4, which includes a second feed end and a second discharge end 41. The second feed end cooperates with the first discharge port 112, and the second discharge end 41 cooperates with the second feed port 311. This facilitates the conveyance of scrap residue from the first discharge port 112 to the second feed port 311 via the second conveyor belt 4, thereby improving the practicality of the photovoltaic module scrap screening device 100 of the present embodiment.

[0044] In some embodiments, as shown in Figures 1 and 2 , the photovoltaic module scrap screening device 100 of the present embodiment further includes a second separator 34, which is mounted on the second bracket 31 and positioned between the third discharge port 312 and the fourth discharge port 313. The separator 34 separates the third discharge port 312 from the fourth discharge port 313. The separation provided by the second separator 34 prevents the separated materials from remixing during their fall, thereby improving the screening efficiency of the photovoltaic module scrap screening device 100 of the present embodiment.

[0045] In some embodiments, as shown in FIG2 , the first bracket 11 and the second bracket 31 are connected, with the first bracket 11 located above the second bracket 31. The second conveyor belt 4 is disposed on the second bracket 31, with the second feed end located below the first discharge port 112, and the second feed end corresponds to the first discharge port 112, so that the remaining crushed material can fall onto the second feed end after being discharged from the first discharge port 112 for transportation by the second conveyor belt 4. By connecting the first bracket 11 and the second bracket 31, the first screening assembly 1, the second screening assembly 3, and the first conveyor belt 2 and the second conveyor belt 4 are integrated, thereby reducing the space occupied by the photovoltaic module crushed material screening device 100 in the embodiment of the present application.

[0046] In some embodiments, the first image acquisition module 12 is a camera, and / or the second image acquisition module 32 is a camera. This allows the first image acquisition module 12 and the second image acquisition module 32 to obtain clear image information, making the purge position more accurate, thereby improving the screening effect of the photovoltaic module crushing screening device 100 according to the embodiment of the present application.

[0047] In some embodiments, the photovoltaic module crushing screening device 100 of the present embodiment further includes a strip screening assembly 5, which includes a third feed port 51 and a fifth discharge port 52. The fifth discharge port 52 is connected to the first feed port 111, and the third feed port 51 is adapted to communicate with the outside world. Thus, the strip screening assembly 5 screens the strip-shaped material in the crushed material, thereby improving the screening effect of the photovoltaic module crushing screening device 100 of the present embodiment.

[0048] The photovoltaic module recycling system of the present embodiment includes the photovoltaic module scrap screening device 100 of any of the aforementioned embodiments. The photovoltaic module scrap screening device 100 of the photovoltaic module recycling system of the present embodiment utilizes a first image acquisition module 12 to collect positional information of one of the glass fragments and silicon wafers in the scrap, thereby accurately determining the position of the glass fragments and silicon wafer in the scrap. A first purge module 13 then purges the glass fragments and silicon wafer, thereby separating the glass fragments and silicon wafer from the scrap, thereby achieving separation of the glass fragments and silicon wafer.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0051] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0052] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0053] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A photovoltaic module crushing screening device, characterized in that: include: a first screening assembly, the first screening assembly comprising a first bracket, a first image acquisition module and a first purge device, the first bracket comprising a first feed port, a first discharge port and a second discharge port, the first discharge port and the second discharge port are both located below the first feed port, and the first discharge port and the second discharge port are spaced apart in a first horizontal direction, The first image acquisition module is arranged on the bracket and corresponds to the first feed port, so that the first image acquisition module obtains the position information of the first preset material in the crushed material. The first blower is arranged on the first bracket. The first blower includes a first nozzle for spraying gas. There are multiple first nozzles, and the multiple first nozzles are spaced apart in the second horizontal direction, and each of the first nozzles is open in the direction of the first discharge port pointing to the second discharge port. The first blower is connected to the first image acquisition module so that the multiple first nozzles spray gas toward the corresponding first preset material.

2. The photovoltaic module crushing material screening device according to claim 1, characterized in that: Also includes: A first conveyor belt, wherein the first conveyor belt comprises a first feeding end and a first discharging end, and the first discharging end is connected to the first feeding port.

3. The photovoltaic module crushing material screening device according to claim 1, characterized in that: The first screening assembly further includes: a first partition plate, the first partition plate is disposed on the bracket, and the first partition plate is located between the first discharge port and the second discharge port, so that the first partition plate separates the first discharge port and the second discharge port.

4. The photovoltaic module crushing material screening device according to any one of claims 1 to 3, characterized in that: Also includes: The second screening component comprises a second bracket, a second image acquisition module and a second A second purge device, wherein the second bracket comprises a second feed port, a third discharge port and a fourth discharge port, the second feed port is connected to the first discharge port, the third discharge port and the fourth discharge port are both located below the second feed port, and the third discharge port and the fourth discharge port are spaced apart in a first horizontal direction; The second image acquisition module is arranged on the bracket and corresponds to the second feed port, so that the second image acquisition module obtains the position information of the second preset material in the crushed material. The second blower is arranged on the second bracket. The second blower includes a second nozzle for spraying gas. There are multiple second nozzles, and the multiple second nozzles are spaced apart in the second horizontal direction, and each second nozzle is open in the direction of the third discharge port pointing to the fourth discharge port. The second blower is connected to the second image acquisition module so that the multiple second nozzles spray gas toward the corresponding second preset material.

5. The photovoltaic module crushing material screening device according to claim 4, characterized in that: Also includes: The second conveyor belt comprises a second feed end and a second discharge end, the second feed end cooperates with the first discharge port, and the second discharge end cooperates with the second feed port.

6. The photovoltaic module crushing material screening device according to claim 5, characterized in that: The second screening assembly also includes: a second partition plate, which is arranged on the second bracket, and the second partition plate is located between the third discharge port and the fourth discharge port, so that the second partition plate separates the third discharge port and the fourth discharge port.

7. The photovoltaic module crushing material screening device according to claim 5, characterized in that: The first bracket is connected to the second bracket, the first bracket is located above the second bracket, the second conveyor belt is arranged on the second bracket, and the second feed end is located below the first discharge port, and the second feed end corresponds to the first discharge port.

8. The photovoltaic module crushing material screening device according to claim 4, characterized in that: The first image acquisition module is a camera; and / or the second image acquisition module is a camera.

9. The photovoltaic module crushing material screening device according to claim 1, characterized in that: Also includes: The strip screening component comprises a third feed port and a fifth discharge port, wherein the fifth discharge port is connected to the first feed port, and the third feed port is suitable for connecting to the outside.

10. A photovoltaic module recycling system, characterized in that: A photovoltaic module crushing material screening device comprising any one of claims 1-9.

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