Single container on-site processing technology for single-glass photovoltaic modules

Abstract

The present invention relates to a single container type on-site processing process for a single glass photovoltaic module, which includes: S1, stacking and loading; S2, removal of the junction box; S3, removal of the glass layer. On the one hand, the present invention is based on various devices arranged in the same container, and the straightening, cutting, and clamping shovel are located at the same station, which shortens the length of the recycling line and reduces the restrictions on the use of the container in on-site recycling. At the same time, the removal of the junction box avoids the wires or connectors from affecting the removal of the box body; on the other hand, the glue layer is softened and the stress of the glass layer is changed first, and then open-circuit cutting and sweeping cutting are performed in sequence to completely remove the glass layer in a wide coverage manner, and the battery cell is pulled by an annular transmission pressure belt to output the battery cell horizontally, that is, not only the probability of breakage or damage to the battery cell is low, but also the formed glass peeling rate exceeds 98%. At the same time, because there is no crushing structure, the occupied space is further shortened and optimized, so as to facilitate the layout of various devices in the same container.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a single-container type on-site processing process for a single-glass photovoltaic module. Background Art

[0002] Single-glass photovoltaic modules are referred to as single-glass modules for short. They mainly include solar cells, glass layers and backboard layers formed on the front and back of the solar cells, and junction boxes arranged on the glass layers. In general on-site recycling, it is only necessary to remove the junction box and then the glass layer to finally obtain the solar cells. Due to the light weight of the solar cells, the solar cells can be directly recycled to solve the problem of high on-site recycling and transportation costs.

[0003] However, in actual operation, the following technical defects still exist:

[0004] 1) Due to the limitation of the length of the recycling line, containers that meet the requirements of on-site recycling basically need to be assembled in two or more sections. Although this can reduce the cost of on-site recycling, the use of multiple sections has limitations in both equipment transportation and site restrictions, and it is impossible to achieve the required low-cost, fast and adaptable battery cell recycling process;

[0005] 2) Based on the single-glass modules, they can be divided into framed single-glass modules or frameless single-glass modules, but there is no optional or universal recycling and processing equipment on the market that can be accommodated in the same container;

[0006] 3) For glass removal, pre-treatment (such as pre-crushing, pre-heating, etc.) is required, and then the conveying roller is used for transmission, and the glass is removed by a scraper or other cutting method. Although the final glass removal rate can be close to 95%, the pre-crushing process may cause deformation or damage to the battery cells, and the transmission and stripping methods will cause a high probability of deformation or damage to the battery cells. At the same time, most of the battery cells cannot be output flat, that is, the processed battery cells are basically in an arc shape, which is obviously not conducive to the subsequent battery cell stacking and collection. In addition, the length occupied by the pre-treatment and stripping treatment is relatively large, which is not conducive to its structural layout in the container;

[0007] 4) For the removal of the junction box, it is usually removed by scraping after adjusting the XY axis. However, many junction boxes include a box body, wires, and connectors, among which the box body is glued to the glass layer. However, due to the existence of wires and connectors, there is interference in the removal. Generally, the wires need to be cut first, and then the box body is removed. However, it is often impossible to cut the wires due to the deviation of the cutting position or the displacement of the wires, resulting in the interference of cutting the box body, which in turn affects the removal of the box body. At the same time, the increase in processes also causes the lengthening of the junction box removal station, which is not conducive to the layout of the container. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a new single-container on-site processing process for single-glass photovoltaic modules.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0010] A single container type on-site processing process for a single glass photovoltaic module, wherein the single container type on-site processing equipment used comprises a container; a loading device, a junction box removal device and a glass removal device located in the same container, wherein the container can be folded and unfolded from the side and the rear, and comprises the following steps:

[0011] S1, stacking material

[0012] The single-glass photovoltaic modules are stacked and fed into a loading device, and then the single-glass photovoltaic modules are transferred piece by piece to the junction box removal device by a transverse transfer robot;

[0013] S2. Removal of junction box

[0014] After receiving the single-glass photovoltaic module, the position is adjusted in the coordinate system formed by the XY axis. At the same time, the wires of the junction box are relatively straightened based on the movement of the wire straightening part. Then, the scissors are close to the box body of the junction box to cut it, and then the box body is clamped to remove the junction box. The straightening, cutting and clamping are located at the same station.

[0015] S3. Removal of glass layer

[0016] The photovoltaic module enters the pretreatment furnace horizontally and is heated at 80~100°, and the photovoltaic module that passes through the pretreatment furnace moves from the level of the glass layer downward to the flattening channel of the glass removal mechanism. Then, the photovoltaic module is leveled by the pressure and forward thrust provided by the annular transmission pressure belt, and the glass layer moves forward in the flattening channel; then, based on multiple self-rotating cutting tools that are arranged side by side and relatively staggered, open-circuit cutting is performed first, and then sweeping cutting is performed to completely remove the glass layer in a wide-coverage manner, and the battery cells are pulled by the annular transmission pressure belt to output horizontally to complete battery recycling.

[0017] Preferably, in S1, the photovoltaic components are stacked with the junction boxes facing upward, and a suction-type manipulator is used for transverse transfer.

[0018] Preferably, in S2, the wire is adjusted and moved along the XY axis so that the connector is relatively away from the box body; and at the same time, a scissors that can be adjusted and moved along the XY axis is used to cut the wire.

[0019] According to a specific implementation and preferred aspect of the present invention, based on the position of the wire-straightening portion to obtain information about the length of the wire, the scissors move in the XY axis to approach the box body and maintain a vertical cutting relationship with the wire.

[0020] Preferably, in S3, the cutting tools used are divided into multiple rows in the transmission direction of the photovoltaic module, and the multiple rows of cutting tools are relatively staggered and separated, wherein the multiple rows are at least divided into a first cutting group and a second cutting group that successively cut with the glass and fully cover the width of the entire photovoltaic module, the number of cutting tools in the first cutting group is at least two, and they are a slotting cutting group; the number of cutting tools in the second cutting group is greater than or equal to the number of cutting tools in the first cutting group, and they are a sweeping cutting group. The mode of first slotting cutting and then sweeping cutting is adopted to reduce the difficulty of cutting and removing the glass.

[0021] In some specific embodiments, the number of cutting tools arranged in the first cutting group and the second cutting group from the feed port to the discharge port increases row by row. Here, based on the change in the number of tools, not only the cutting difficulty is reduced, but also the cutting quality is improved.

[0022] Preferably, the cutting area formed by the first cutting group is smaller than the cutting area formed by the second cutting group, and the cutting areas formed by each row of cutting tools are arranged from small to large based on the cutting sequence. Here, based on the change in the size of the cutting area of ​​the tool, especially the contact with the glass is also small at first and then large, which greatly reduces the difficulty of slotting and cutting, and the use of a gradually increasing cutting method reduces the damage to the tool itself.

[0023] In some specific embodiments, the cutting areas formed by the cutting tools in the same row are equal. Here, the cutting effect formed between the cutting tools in the same row is stable to reduce the cutting interference between the cutting tools in the same row.

[0024] According to yet another specific implementation and preferred aspect of the present invention, in S3, some of the multiple cutting tools move in the same direction or in opposite directions; or, all of the multiple cutting tools move in the same direction.

[0025] In some specific embodiments, each cutting tool includes a tool holder, a tool head detachable from the tool holder, the tool holder includes a cone portion with a gradually decreasing outer diameter from top to bottom, and an external connection portion vertically extending downward from the bottom surface of the cone portion, wherein the external connection portion rotates relative to the bearing and the bearing holder through a bearing, and the tool head is a grinding disc or a saw disc, and the tool head in this example is formed with a cutting edge (i.e., a saw disc) from the circumference. Here, based on the strength formed by the cone portion, not only is it convenient to disassemble and replace the tool head, but it also improves the cutting performance and service life of the tool.

[0026] According to another specific implementation and preferred aspect of the present invention, in S3, after the cutting tool completes the removal of the glass layer, the stripping roller at the end forms a rolling contact with the surface of the cell, and the surface of the cell is stripped during the rolling process.

[0027] Preferably, the stripping is formed based on roller pins on the circumference of the stripping roller. Specifically, the stripping roller includes a roller body, a plurality of roller pins distributed on the circumference of the roller body, wherein the stripping is formed by the roller pins moving in contact with the surface of the battery cell, and the roller body is adjustable from the shaft end to the corresponding frame through elastic connectors. The adjustment is made based on the elastic connector to meet the actual needs to adjust the distance between the stripping roller and the annular conveying pressure belt to avoid damage to the battery cell; at the same time, the roller pins used are more conducive to the separation of the glass and the battery cell after stripping. In some specific embodiments, the plurality of roller pins are divided into a plurality of roller pin groups, and the roller pins of each roller pin group extend radially along the roller body and are evenly spaced and distributed around the outer periphery of the roller body; further, the plurality of roller pin groups are aligned and distributed in the axial direction of the roller body. That is, the stripping roller with roller pins similar to the hob shape can not only further cooperate with the stripping of the residual glass, but also cooperate with the annular conveying pressure belt to form traction, reduce the probability of material jamming or blocking when removing the glass, and further improve the flatness of the battery cell discharge. At the same time, each group of roller pins is aligned and arranged in the axial direction of the stripping roller. The peeling force generated by the rotation of the peeling roller remains in the same direction, which is more conducive to the forward transmission of the battery sheet.

[0028] According to another specific implementation and preferred aspect of the present invention, in S3, a cullet collection unit is used to collect cullets, wherein the cullets are collected and directed downward by a collection hopper, and then discharged by a cullet conveyor belt at the bottom. Under the push of the photovoltaic module, the cullets fall into the collection hopper from the gap formed by the cutter, the stripping roller and the fence (similar to the collection of sawdust during sawing), and then the collection hopper collects and unloads the cullets to the cullet conveyor belt below, and finally the cullets are discharged by the cullet conveyor belt.

[0029] In addition, the loading device, the junction box removal device, and the glass removal device are arranged in sequence along the length direction of the container; and the side and tail of the container can be flipped open, and the junction box and broken glass are unloaded from the side of the container respectively; the battery cells are unloaded from the tail. The side wings and tail wings of the container are unfolded to facilitate the collection of disassembled parts. At the same time, the above-mentioned single-container single-glass photovoltaic module recycling equipment is suitable for the recycling of battery cells of frameless single-glass modules.

[0030] In some specific embodiments, the on-site processing process further includes step SX, wherein step SX is the removal of the frame arranged in the same container, and the frame removal step is located between the removal step of the junction box and the removal of the glass layer. Here, based on the optional frame removal, the cell recycling of framed or frameless single-glass modules can be carried out to meet the cell recycling of photovoltaic modules under different working conditions and enhance the flexibility and practicality of recycling.

[0031] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0032] Based on the existing on-site recycling of single-glass components, firstly, due to the limitation of the length of the recycling line, the containers that meet the requirements of on-site recycling basically need to be assembled in two or more sections. Although the cost of on-site recycling can be reduced, the use of multiple sections has limitations in both equipment transportation and site restrictions, and the required low-cost, fast and adaptable cell recycling and processing cannot be achieved; secondly, based on single-glass components, they can be divided into framed single-glass components or frameless single-glass components, and there is no optional or universal recycling and processing equipment on the market that can be accommodated in the same container; then, for glass removal, pre-treatment (such as pre-crushing, preheating, etc.) is required, and then the transmission roller is used for transmission, and the glass is removed by a scraper or other cutting method. Although the final glass removal rate can be close to 95%, the pre-crushing process may cause deformation or damage to the cell, and the transmission method and peeling method will cause a high probability of deformation or damage to the cell, and most of the The battery cells cannot be output smoothly, that is, the processed battery cells are basically in an arc shape, which is obviously not conducive to the subsequent stacking and collection of battery cells. In addition, the length occupied by the pretreatment and stripping treatment is relatively large, which is not conducive to its structural layout in the container; finally, for the removal of the junction box, the junction box is generally removed by scraping after the adjustment and alignment of the XY axis. However, many junction boxes themselves include a box body, a wire, and a connector, wherein the box body is glued to the glass layer. However, due to the existence of the wire and the connector, there is interference with scraping. Generally, the wire needs to be cut first, and then the box body is scraped. However, it is often the case that the wire cannot be cut due to the deviation of the cutting position or the displacement of the wire, resulting in the cutting constituting interference with the scraping of the box body, thereby affecting the scraping of the box body. At the same time, the increase in the number of processes also causes the lengthening of the junction box removal station, which is more unfavorable for the layout of the container and other shortcomings. The present invention cleverly solves various shortcomings of the existing structure by overall design of the single-container on-site processing process of the single-glass photovoltaic module.After adopting the single container type on-site processing process of the single glass photovoltaic module, first, the single glass photovoltaic module is stacked and fed into the loading device, and then the single glass photovoltaic module is transferred to the junction box removal device piece by piece by the transverse transfer robot; secondly, after receiving the single glass photovoltaic module, the position is adjusted in the coordinate system formed by the XY axis, and at the same time, the wires of the junction box are relatively straightened based on the movement of the wire straightening part, and then the box body is cut by the scissors close to the junction box body, and then the box body is clamped and shoveled to remove the junction box; finally, the photovoltaic module enters the pretreatment furnace horizontally for heating at 80~100°, and the photovoltaic module passing through the pretreatment furnace moves from the glass layer downward to the flattening channel of the glass removal mechanism, and then, the pressure and forward thrust provided by the annular transmission pressure belt level the photovoltaic module and the glass layer is pressed against the flattening channel to move forward; then, based on multiple self-rotating cutting tools that are arranged side by side and relatively staggered, open-circuit cutting is first performed, and then sweeping cutting is performed. The glass layer is completely removed in a wide coverage manner, and the battery cell is horizontally output by the traction of the annular transmission pressure belt to complete the battery cell recovery. Therefore, on the one hand, the present invention is based on the various devices arranged in the same container, and the straightening, cutting, and clamping shovel are located at the same station, further shortening the length layout of the recovery line, effectively reducing the use restrictions of the container in on-site recycling, and at the same time avoiding the wires or connectors from affecting the removal of the box body during the removal of the junction box; on the other hand, based on the cutting formed by preheating and the roller, the glue layer is first softened and the stress of the glass layer is changed, and then open-circuit cutting and sweeping cutting are performed in turn to completely remove the glass layer in a wide coverage manner, and the battery cell is horizontally output by the traction of the annular transmission pressure belt, that is, not only the probability of battery cell breakage or damage is low, but also the formed glass peeling rate exceeds 98%. At the same time, because there is no crushing structure, the occupied space is further shortened and optimized, so as to facilitate the layout of various devices in the same container. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the front view of the single container type single glass photovoltaic module recycling equipment of Example 1;

[0034] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of the middle junction box removal device;

[0035] Figure 3 for Figure 1 An enlarged schematic diagram of the structure of the glass removal device;

[0036] Figure 4 for Figure 3 A magnified schematic diagram of the three-dimensional structure of the glass removal mechanism;

[0037] Figure 5 for Figure 4 Another perspective structural diagram of;

[0038] Figure 6 for Figure 3 Schematic diagram of local structure;

[0039] Figure 7 for Figure 6 A schematic diagram of the main view;

[0040] Figure 8 for Figure 7 A right side schematic diagram of

[0041] Fig. 9 for Figure 6 Schematic diagram of structural decomposition;

[0042] Fig.10 for Fig. 9 Schematic diagram of the local structure;

[0043] Fig.11 for Fig.10 A schematic diagram of the main view;

[0044] Fig.12 for Fig.11 AA section view (enlarged);

[0045] Fig.13 for Fig.11 A top view schematic diagram of

[0046] Fig.14 for Fig.13 Schematic diagram from above (partially enlarged);

[0047] Fig.15 This is a schematic diagram of the working process of Example 1;

[0048] Fig.16 This is a schematic diagram of the front view of a single container type single glass photovoltaic module recycling equipment of Example 2;

[0049] Fig.17 This is a schematic diagram of the workflow of Example 2;

[0050] Where: 1, container; 1a, head; 1b, middle; 1c, tail;

[0051] 2. Loading device;

[0052] 3. Junction box removal device; 30. Wire reeling and wire cutting mechanism; 31. Shoveling mechanism; 32. XY axis lateral movement adjustment mechanism;

[0053] 4. Glass removal device; 40. Pretreatment furnace; 41. Glass removal mechanism; 410. Frame; m. Feed inlet; n. Discharge outlet; 411. Transmission unit; a. Frame plate; b. Annular conveyor belt; b1. Power motor; c. Lifting mechanism; c1. Truss; c2. Fixed seat; c3. Power device; 412. Cutting unit; d. Cutting tool; d1. Tool holder; d10. Cone part; d11. External part; d2. Tool head; e. Power assembly; e1 Transmission wheel; e2. Motor; e3. Transmission belt; f. Stripping roller; f1. Roller body; f2. Roller pin; k. Elastic connector; g. Driver; 413. Broken glass collection unit; h. Guardrail; i. Collection hopper; j. Broken glass conveyor belt;

[0054] 5. Frame removal device. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0056] In the description of the present invention, it is to 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”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention 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 limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. Example 1

[0061] like Figures 1 to 14 As shown, the single container type on-site processing process of the single-glass photovoltaic module of this embodiment adopts a single container type on-site processing equipment including a container 1; a loading device 2, a junction box removal device 3 and a glass removal device 4 located in the same container 1.

[0062] Specifically, the container 1 has a head, a middle part and a tail part, wherein the two opposite side wings of the head part can be flipped and unfolded around their own length direction, the side wings of the middle part can be flipped and unfolded around their own length direction, and the side wings and tail wing of the tail part can both be flipped and unfolded.

[0063] In some specific embodiments, the feeding device 2, the junction box removal device 3, and the glass removal device 4 are located in the same container 1, wherein the feeding device 2 is located at the head 1a, the junction box removal device 3 is located at the middle 1b, and the glass removal device 4 is located at the tail 1c. That is, the feeding device 2, the junction box removal device 3, and the glass removal device 4 are arranged in sequence along the length direction of the container 1; and the side and tail 1c of the container 1 can be flipped open, and the junction box and broken glass are unloaded from the side of the container 1 respectively; the battery cells are unloaded from the tail 1c. The side wings and tail wings of the container are unfolded to facilitate the collection of disassembled parts. At the same time, the above-mentioned single-container single-glass photovoltaic module recycling equipment is suitable for the recycling of battery cells of frameless single-glass modules.

[0064] In this example, the feeding device 2 adopts stacking feeding, and uses a robot to translate the photovoltaic modules piece by piece to the junction box removal device 3, while keeping the junction box of the photovoltaic module facing upward.

[0065] In this example, the junction box removal device 3 includes a wire drawing and wire cutting mechanism 30 and a scraping mechanism 31, and an XY axis lateral movement adjustment mechanism 32 located at the same junction box disassembly and assembly station, wherein the XY axis lateral movement adjustment mechanism 32 first adjusts the assembly in the XY axis coordinate system, and then the wire drawing and wire cutting mechanism 30 draws and cuts the wires, and then the scraping mechanism 31 scrapes the box body. In short, the wire drawing, wire cutting and scraping are performed in sequence along the transmission direction of the photovoltaic module to remove the junction box. That is, the space required for the removal of the junction box is simplified. Regardless of whether the wire drawing or wire cutting is required, its function is to be spare, and the junction box scraping can also be directly implemented to increase practicality (to meet the removal of junction boxes of different shapes). Specifically, the wire drawing and wire cutting mechanism 30 straightens the wires of the junction box (a comb with a combing line can be used to move horizontally to relatively straighten the body), and then cuts it close to the box body with scissors, and then scrapes the junction box away from the glass layer with a scraper.

[0066] In this example, the glass removal device 4 includes a pretreatment furnace 40 for preheating the photovoltaic modules, and a glass removal mechanism 41 connected to the pretreatment furnace 40, wherein the pretreatment furnace 40 can be heated to about 80~100° (which mainly serves the purpose of softening the glue layer and further facilitates the cutting of the glass), and the photovoltaic modules transmitted from the pretreatment furnace 40 are transferred from the glass layer downward to the glass removal mechanism 41; the glass removal mechanism 41 includes a frame 410 with a feed port m and a discharge port n, a transmission unit 411 and a cutting unit 412.

[0067] In some specific embodiments, the transmission unit 411 includes a frame plate a extending horizontally from the feed port m to the discharge port n, an annular conveyor belt b installed above the frame plate a and capable of being raised and lowered, and a lifting mechanism c for driving the annular conveyor belt to move up and down, wherein a flattening channel is formed between the frame plate a and the annular conveyor belt b, the photovoltaic module enters the flattening channel from the glass downward and is provided with downward pressure and forward transmission force by the annular conveyor belt, and the lifting mechanism c includes a truss c1 formed on both sides of the annular conveyor belt b and located above the annular conveyor belt b, a fixed seat c2 installed on the frame 410, and a power device c3 driving the truss c1 to move up and down relative to the fixed seat c2, wherein the power device c3 is a telescopic rod or a power lead screw or a gear rack or a sprocket chain for linear motion. Here, the main purposes of setting the lifting mechanism are: 1. Adjusting the pressure and friction power formed by the annular conveyor belt to meet the cutting power requirements; 2. Facilitating the maintenance and maintenance of the stripping roller and the cutting tool. In this example, a gear and rack transmission method is adopted, and a slide rail guide method is used to achieve up and down lifting adjustment.

[0068] Furthermore, the power motor b1 of the ring-shaped transmission pressure belt b is also installed on the truss c1. Therefore, the components located above the frame a (ring-shaped transmission pressure belt, lifting mechanism, power motor, etc.) can increase the positive pressure, thereby greatly reducing the probability of component deviation during cutting.

[0069] The cutting unit 412 is located at the exit of the flattening channel and includes a plurality of cutting tools d protruding from the top of the frame plate a and arranged with the axis line vertically, a power assembly e for driving the plurality of cutting tools d to rotate in the same direction and / or in the opposite direction, a stripping roller f arranged at the discharge port of the frame plate a and below the annular conveyor belt b, and a driver g for driving the stripping roller f and the annular conveyor belt to move in opposite directions, wherein each cutting tool d forms a cutting surface in the circumferential direction and forms a cutting area on the width of the corresponding flattening channel; the protruding length of each cutting tool d is equal to the thickness of the glass layer to be removed.

[0070] In some specific embodiments, multiple cutting tools d are divided into multiple rows in the transmission direction of the photovoltaic module, and the multiple rows of cutting tools are relatively staggered and separated, wherein the multiple rows are at least divided into a first cutting group and a second cutting group that successively form cutting with the glass and fully cover the entire width of the photovoltaic module, the number of cutting tools in the first cutting group is at least two, and it is a slotting cutting group; the number of cutting tools in the second cutting group is greater than or equal to the number of cutting tools in the first cutting group, and it is a sweeping cutting group. In this example, the number of cutting tools arranged from the feed port to the discharge port of the first cutting group and the second cutting group increases row by row. Here, based on the change in the number of tools, not only the cutting difficulty is reduced, but also the cutting quality is improved. The cutting area formed by the first cutting group is smaller than the cutting area formed by the second cutting group, and the cutting area formed by each row of cutting tools is arranged from small to large based on the order of cutting. Here, based on the change in the size of the cutting area of ​​the tool, especially the contact with the glass is also small first and then large, the difficulty of slotting cutting is greatly reduced, and the use of a gradually increasing cutting method will cause much less damage to the tool itself. The cutting areas formed by the cutting tools in the same row are equal. Here, the cutting effect formed between the cutting tools in the same row is stable, so as to reduce the cutting interference between the cutting tools in the same row.

[0071] In this example, there are five cutting tools d, and the five cutting tools d are arranged side by side and staggered in the length direction of the flattening channel, and the cutting areas are complementary and / or overlapped to cover the width of the photovoltaic module entering the flattening channel. That is, the cutting tools d form two rows from the inlet to the outlet, two in the front row and three in the back row (a total of 5). Specifically, the number of cutting tools in the front row plus one is equal to the number of cutting tools in the back row, wherein the glass layer is removed in a high-speed and efficient mode by the front row slotting cutting and the back row horizontal push cutting. In this example, the cutting areas formed by the cutting tools d are of different sizes, the two cutting tools in the front row have a small outer diameter, the three cutting tools in the back row have a large outer diameter, and the cutting areas formed from the inlet to the outlet are arranged from small to large. Based on the cutting tools with different outer diameters, the smaller the cutting tools, the easier it is to form open-circuit cutting. As for the arrangement of the cutting tools from small to large, the difficulty of removing the glass layer will be greatly reduced, and the differentiated area cutting is carried out to achieve comprehensive and sequential cutting to achieve the rear row horizontal push cutting. Furthermore, the cutting areas formed by the cutting tools d in each row are equal, that is, each row of cutting tools d forms equal cutting to avoid cutting interference between cutting tools d in the same row; at the same time, each row of cutting tools d is symmetrically arranged about the center line of the flattening channel, and some cutting tools d are located on the center line of the flattening channel. Therefore, the layout of the tools is completely based on the center line layout of the flattening channel, and in order to improve the cutting quality, a centering guide joint is also provided at the feed port.

[0072] In some specific embodiments, each cutting tool d includes a tool seat d1, a tool head d2 having a cutting surface and detachable from the tool seat d1, the tool seat d1 includes a cone portion d10 with a gradually decreasing outer diameter from top to bottom, and an external connection portion d11 vertically extending downward from the bottom surface of the cone portion d10, wherein the external connection portion d11 rotates relative to the bearing seat through a bearing. Here, based on the strength formed by the cone portion d10, not only is it convenient to disassemble and replace the tool head d2, but also the cutting performance and service life of the tool are improved.

[0073] In some specific embodiments, the power assembly e includes a transmission wheel e1 installed on each external portion d11, a motor e2, and a transmission belt e3 for connecting the motor e2 and the transmission wheel e1, wherein there is at least one motor e2, and multiple transmission wheels e1 are connected to the corresponding motor e2 through the transmission belt e3. In short, the rotation cutting of the corresponding tool is achieved by rotating the multiple transmission wheels e1 in the same direction or in the opposite direction. In this example, two motors e2 are used to drive the five transmission wheels e1 in two rows (corresponding to five cutting tools d), one of which is connected to the front row transmission wheel e1 and the rear row transmission wheels e1 through the transmission belt e3; the other motor e2 is connected to the remaining front and rear transmission wheels e1. As for the transmission direction, the same direction is used in this example (it can also be that one motor e2 drives the front row two transmission wheels e1 to move in the same direction, and the other motor e2 drives the rear row three transmission wheels e1 to move in the same direction, and the rotation directions of the front row and the rear row are opposite).

[0074] In some specific embodiments, part of the roller surface of the stripping roller f contacts the battery cell after the glass is cut to strip the residual glass on the surface of the battery cell. The stripping roller f includes a roller body f1 and a plurality of roller pins f2 distributed on the circumference of the roller body f1, wherein the roller pins f2 are in contact with the surface of the battery cell to form stripping, and the roller body f1 is adjustably mounted on the corresponding frame through elastic connectors k from the axial ends. The adjustment setting is based on the elastic connector to meet the actual needs to adjust the distance between the stripping roller and the annular conveyor belt to avoid damage to the battery cell; at the same time, the roller pins used are more conducive to the separation of the glass and the battery cell after stripping. In this example, the plurality of roller pins f2 are divided into a plurality of roller pin groups, and the roller pins f2 of each roller pin group extend radially along the roller body f1 and are evenly spaced around the outer periphery of the roller body; further, the plurality of roller pin groups are aligned and distributed in the axial direction of the roller body f1. That is, the use of a stripping roller with roller pins similar to a hob shape can not only further cooperate with the stripping of residual glass, but also cooperate with the annular transmission pressure belt to form traction, reduce the probability of glass removal jamming or blocking, and further improve the flatness of the battery cell discharge. At the same time, each group of roller pins is aligned in the axial direction of the stripping roller. The stripping force generated by the rotation of the stripping roller remains in the same direction, which is more conducive to the forward transmission of the battery cell.

[0075] In addition, the glass removal mechanism 41 also includes a broken glass collection unit 413 connected to the frame a, and the broken glass collection unit 413 includes a guardrail h that relatively closes or covers the end of the flattening channel and the end of the stripping roller f, a collecting hopper i that gradually narrows from the bottom of the guardrail h from top to bottom, and a broken glass conveyor belt j located below the collecting hopper i, wherein the side wall of the collecting hopper i is inclined from top to bottom, and the cut broken glass slides to the broken glass conveyor belt j based on the side wall guidance. Under the push of the photovoltaic module, the broken glass falls into the collecting hopper i from the gap formed by the cutting tool d, the stripping roller f and the guardrail h (similar to the sawdust collection by sawing), and then the collecting hopper i collects and unloads the broken glass to the broken glass conveyor belt j below, and finally the broken glass is transmitted through the broken glass conveyor belt j. At the same time, in some specific embodiments, the feed port and the discharge port are aligned and arranged, and the transmission direction of the broken glass conveyor belt j is perpendicular to the feeding and exiting direction, so as to optimize the overall shape with a reasonable spatial layout and reduce its own volume.

[0076] Combination Fig.15 As shown, the recycling of the frameless single-glass component of this embodiment includes the following steps:

[0077] S1, stacking material

[0078] The single-glass photovoltaic modules are stacked and fed into a loading device, and then the single-glass photovoltaic modules are transferred piece by piece to the junction box removal device by a transverse transfer robot, wherein the photovoltaic modules are stacked with the junction boxes facing upwards, and the adsorption-type robot is used for transverse transfer;

[0079] S2. Removal of junction box

[0080] After being connected to the single-glass photovoltaic module, the position is adjusted within the coordinate system formed by the XY axis. At the same time, the wire of the junction box is relatively straightened based on the movement of the wire-straightening part. Then, the scissors are close to the box body of the junction box to cut it. Then, the box body is clamped and shoveled to remove the junction box. The straightening, cutting and clamping are located at the same station. The wire is adjusted along the XY axis to make the connector relatively far away from the box body. At the same time, the scissors that can be adjusted along the XY axis are used to cut the wire. Based on the position of the wire-straightening part to obtain the length information of the wire, the scissors move along the XY axis to keep close to the box body and cut the wire vertically.

[0081] S3. Removal of glass layer

[0082] The photovoltaic module enters the pretreatment furnace horizontally for heating at 80-100°, and the photovoltaic module coming out of the pretreatment furnace moves from the level of the glass layer downward to the flattening channel of the glass removal mechanism, and then, the photovoltaic module is leveled by the pressure and forward thrust provided by the annular transmission pressure belt, and the glass layer is adhered to the flattening channel and moves forward; then, based on multiple self-rotating cutting tools that are arranged side by side and relatively staggered, open-circuit cutting is first performed, and then sweeping cutting is performed to completely remove the glass layer in a wide-width covering manner, and the cutting tools are pulled by the annular transmission pressure belt, wherein the cutting tools used are divided into multiple rows in the transmission direction of the photovoltaic module, and the multiple rows of cutting tools are relatively staggered and separated, wherein the multiple rows are at least divided into a first cutting group and a second cutting group that successively cut with the glass and fully cover the entire width of the photovoltaic module, and the first cutting group and the second cutting group that successively cut with the glass and fully cover the entire width of the photovoltaic module. A cutting group has at least two cutting tools, which are a slotting cutting group; the second cutting group has more than or equal to the first cutting group, which are a sweeping cutting group, and at the same time, some of the multiple cutting tools move in the same direction or in the opposite direction; or, all of the multiple cutting tools move in the same direction; after the cutting tool completes the removal of the glass layer, it forms a rolling contact with the surface of the battery cell through the stripping roller at the end, and the surface of the battery cell is stripped during the rolling process, and the broken glass falls into the collection hopper from the gap formed by the tool, the stripping roller and the guardrail under the push of the photovoltaic module (similar to the collection of sawdust by sawing), and then the collection hopper collects and unloads the broken glass to the broken glass conveyor belt below, and finally the broken glass is transmitted out through the broken glass conveyor belt, and at the same time the battery cell is horizontally output from the discharge port to complete the battery recycling. Example 2

[0083] like Fig.16 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, except that the single-glass photovoltaic module recycling equipment in this example also includes a frame removal device 5 arranged in the container 1 and between the junction box removal device 3 and the glass removal device 4. In other words, this device can implement the cell recycling of single-glass modules with frames. Of course, there is another mode. By selecting this device, the cell recycling of single-glass modules without frames can also be carried out when the frame removal device is not working. However, it can be selected according to actual needs to meet the cell recycling of photovoltaic modules under different working conditions and enhance the flexibility and practicality of recycling. As for the structure of the frame removal device 5, please refer to the frame removal device in CN117259386B, which will not be elaborated here.

[0084] Combination Fig.17 As shown, the implementation process of this embodiment is as follows:

[0085] S1, stacking material

[0086] The single-glass photovoltaic modules are stacked and fed into a loading device, and then the single-glass photovoltaic modules are transferred piece by piece to the junction box removal device by a transverse transfer robot, wherein the photovoltaic modules are stacked with the junction boxes facing upwards, and the adsorption-type robot is used for transverse transfer;

[0087] S2. Removal of junction box

[0088] After being connected to the single-glass photovoltaic module, the position is adjusted within the coordinate system formed by the XY axis. At the same time, the wire of the junction box is relatively straightened based on the movement of the wire-straightening part. Then, the scissors are close to the box body of the junction box to cut it. Then, the box body is clamped and shoveled to remove the junction box. The straightening, cutting and clamping are located at the same station. The wire is adjusted along the XY axis to make the connector relatively far away from the box body. At the same time, the scissors that can be adjusted along the XY axis are used to cut the wire. Based on the position of the wire-straightening part to obtain the length information of the wire, the scissors move along the XY axis to keep close to the box body and cut the wire vertically.

[0089] S3. Border removal

[0090] The frame stripping method is used to perform two expansion-type synchronous stripping operations from opposite sides of the photovoltaic module, and the frame strips are unloaded from the side of the container for frame strip collection;

[0091] S4. Removal of glass layer

[0092] The photovoltaic module enters the pretreatment furnace horizontally for heating at 80-100°, and the photovoltaic module coming out of the pretreatment furnace moves from the level of the glass layer downward to the flattening channel of the glass removal mechanism, and then, the photovoltaic module is leveled by the pressure and forward thrust provided by the annular transmission pressure belt, and the glass layer is adhered to the flattening channel and moves forward; then, based on multiple self-rotating cutting tools that are arranged side by side and relatively staggered, open-circuit cutting is first performed, and then sweeping cutting is performed to completely remove the glass layer in a wide-width covering manner, and the cutting tools are pulled by the annular transmission pressure belt, wherein the cutting tools used are divided into multiple rows in the transmission direction of the photovoltaic module, and the multiple rows of cutting tools are relatively staggered and separated, wherein the multiple rows are at least divided into a first cutting group and a second cutting group that successively cut with the glass and fully cover the entire width of the photovoltaic module, and the first cutting group and the second cutting group that successively cut with the glass and fully cover the entire width of the photovoltaic module. A cutting group has at least two cutting tools, which are a slotting cutting group; the second cutting group has more than or equal to the first cutting group, which are a sweeping cutting group, and at the same time, some of the multiple cutting tools move in the same direction or in the opposite direction; or, all of the multiple cutting tools move in the same direction; after the cutting tool completes the removal of the glass layer, it forms a rolling contact with the surface of the battery cell through the stripping roller at the end, and the surface of the battery cell is stripped during the rolling process, and the broken glass falls into the collection hopper from the gap formed by the tool, the stripping roller and the guardrail under the push of the photovoltaic module (similar to the collection of sawdust by sawing), and then the collection hopper collects and unloads the broken glass to the broken glass conveyor belt below, and finally the broken glass is transmitted out through the broken glass conveyor belt, and at the same time the battery cell is horizontally output from the discharge port to complete the battery recycling.

[0093] Therefore, on the one hand, the present invention is based on the layout of various devices in the same container, and the straightening, cutting, and clamping shovel are located in the same station, which further shortens the length layout of the recycling line, effectively reduces the use restrictions of the container in on-site recycling, and avoids the wires or connectors from affecting the removal of the box body during the removal of the junction box; on the other hand, based on the cutting formed by preheating and the roller, the glue layer is first softened and the stress of the glass layer is changed, and then open-circuit cutting and sweeping cutting are performed in sequence to completely remove the glass layer in a wide-width covering manner, and the battery cell is pulled by the annular transmission pressure belt to output the battery cell horizontally, that is, not only the probability of battery cell breakage or damage is low, but also the formed glass peeling rate exceeds 98%, and at the same time, because there is no crushing structure structure, thereby further shortening and optimizing the occupied space, so as to facilitate the layout of various devices in the same container; thirdly, under the same benchmark, the flat feeding of photovoltaic modules and the flat discharging of cells are maintained, and the single-glass modules after preheating are successively subjected to the slotting cutting group and the sweeping cutting group to remove the glass layer in a covering and flat pushing manner, and at the same time, the rolling peeling formed by the peeling roller can be coordinated with the annular transmission pressure belt to form traction, so as to further improve the flatness of the discharging of the cells; fourthly, the space required for the removal of the junction box is simplified, regardless of whether the wire is to be straightened or cut, its function is to be spare, and the junction box can also be directly removed to increase practicality (to meet the disassembly of junction boxes of different shapes) In addition); the fifth aspect is based on the change in the number of tools in the first cutting group and the second cutting group, which not only reduces the cutting difficulty but also improves the cutting quality. At the same time, based on the change in the size of the cutting area of ​​the tool, especially the contact with the glass is first small and then large, which greatly reduces the difficulty of grooving and cutting. In addition, the gradually increasing cutting method is adopted, which causes much less damage to the tool itself. Then, the cutting effect formed between the cutting tools in the same row is stable, so as to reduce the cutting interference between the tools in the same row. In the sixth aspect, based on the strength formed by the frustum, it is not only convenient to disassemble and replace the tool head, but also improves the cutting performance and service life of the tool. At the same time, through the same or reverse rotation of multiple transmission wheels, the corresponding tool can be rotated to cut Cutting; the seventh aspect is to adjust and set based on the elastic connecting piece to meet the actual needs of the distance between the stripping roller and the annular conveyor belt to avoid damage to the battery cell; at the same time, the roller nails used are more conducive to the separation of the glass and the battery cell after stripping. In addition, the roller nail group uses a stripping roller with roller nails similar to a hob shape, which can not only further cooperate with the stripping of the residual glass, but also cooperate with the annular transmission belt to form traction, reduce the probability of stuck or blocked glass removal, and further improve the flatness of the battery cell discharge. At the same time, each group of roller nails is aligned in the axial direction of the stripping roller, and the stripping force formed by the rotation of the stripping roller remains in the same direction, which is more conducive to the forward transmission of the battery cell;The eighth aspect is based on the contact area formed by the annular transmission pressure belt (in this case, the annular transmission pressure belt is a rubber belt, and the pressure generated is sufficient to avoid left and right displacement during cutting, and the pressure generated exceeds 400N), so that the pressure and power provided by it, as well as the power generated by exploitation constitute the power output, thereby avoiding material jamming or blocking, and at the same time, based on equal cutting, reducing the damage rate caused by battery cell cutting; in addition, the main purposes of setting up the lifting mechanism are: 1. Adjusting the pressure and friction power formed by the annular transmission pressure belt to meet the cutting power requirements; 2. Facilitating the maintenance and maintenance of the stripping roller and cutting tool; the ninth aspect is that under the push of the photovoltaic module, the broken glass falls into the collection hopper from the gap formed by the tool, the stripping roller and the guardrail (similar to the collection of sawdust during sawing), and then the collection hopper collects and unloads the broken glass to the broken glass conveyor belt below, and finally passes through The broken glass is conveyed out through the broken glass conveyor belt; In the tenth aspect, whether it is a framed or frameless single-glass photovoltaic module recycling device, the device of Example 2 can be used for recycling. Of course, if it is a frameless module, the device of Example 1 can be used for recycling, so that it can be selected based on actual conditions to meet the recycling of cells of single-glass modules on site in a single container, and enhance the flexibility and practicality of recycling; The final stripping and removal rate of the glass removal device exceeds 98%, and it also solves the problem of transmission and stacking of photovoltaic modules and recycled cells. In addition, based on the overall layout of the shape, it not only solves the problem of space limitation, but also facilitates mobile site recycling; At the same time, the deformation of the module itself will not affect the subsequent stripping (especially quantitative cutting), which will cause damage to the cell; Similarly, no pre-crushing is required, which further reduces the deformation or damage rate of the cell. ;

[0094] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A single container type on-site processing process for single glass photovoltaic modules, wherein the single container type on-site processing equipment used comprises a container, a loading device, a junction box removal device, and a glass removal device, characterized in that: The feeding device, the junction box removal device, and the glass removal device are located in the same container, and the feeding device, the junction box removal device, and the glass removal device are arranged in sequence along the length direction of the container. The container can be folded and unfolded from the side and the rear, and includes the following steps: S1, stacking material The single-glass photovoltaic modules are stacked and fed into a loading device, and then the single-glass photovoltaic modules are transferred piece by piece to the junction box removal device by a transverse transfer robot, wherein the photovoltaic modules are stacked with the junction boxes facing upwards; S2. Removal of junction box After being connected to the single-glass photovoltaic module, the position is adjusted within the coordinate system formed by the XY axis, and the wires of the junction box are relatively straightened based on the movement of the wire straightening part, and then the scissors are close to the box body of the junction box to cut it, and then the box body is clamped to remove the junction box, wherein the straightening, cutting and clamping are located at the same station, and the wires are adjusted along the XY axis to make the connector relatively away from the box body; at the same time, the scissors that can be adjusted along the XY axis are used to cut the wires; S3. Removal of glass layer The photovoltaic module enters the pretreatment furnace horizontally for heating at 80-100°, and the photovoltaic module passing through the pretreatment furnace moves from the level of the glass layer downward to the flattening channel of the glass removal mechanism. Then, the photovoltaic module is leveled by the pressure and forward thrust provided by the annular transmission pressure belt, and the glass layer moves forward in the flattening channel. Then, based on multiple self-rotating cutting tools that are arranged side by side and relatively staggered, open-circuit cutting is first performed, and then sweeping cutting is performed to completely remove the glass layer in a wide-width covering manner. At the same time, after the cutting tool completes the removal of the glass layer, the peeling roller at the end forms a rolling contact with the surface of the battery cell, and the surface of the battery cell is peeled during the rolling process, and the battery cell is pulled horizontally by the annular transmission pressure belt to complete the output. Battery recycling, wherein the cutting tools used are divided into multiple rows in the transmission direction of the photovoltaic module, and the multiple rows of cutting tools are relatively staggered and separated, wherein the multiple rows are at least divided into a first cutting group and a second cutting group that successively cut with the glass and fully cover the entire width of the photovoltaic module, the number of the cutting tools in the first cutting group is at least two, and they are a grooving cutting group; the number of the cutting tools in the second cutting group is greater than or equal to the number of cutting tools in the first cutting group, and they are a sweeping cutting group, each of the cutting tools includes a tool seat, a tool head detachable from the tool seat, the tool seat includes a frustum portion with an outer diameter gradually decreasing from top to bottom, and an external connection portion vertically extending downward from the bottom surface of the frustum portion, wherein the external connection portion rotates relative to the bearing seat through a bearing and a bearing seat.

2. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1 is characterized in that: In S1, an adsorption-type robot is used for lateral transfer.

3. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: Based on the position of the wire-straightening part to obtain the length information of the wire, the scissors move in the XY axis to approach the position of the box body and keep perpendicular to the wire to cut.

4. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: The number of cutting tools arranged in the first cutting group and the second cutting group from the feed port to the discharge port increases row by row.

5. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: The cutting area formed by the first cutting group is smaller than the cutting area formed by the second cutting group.

6. The single container type on-site treatment process of single glass photovoltaic modules according to claim 5, characterized in that: The cutting areas formed by the cutting tools in each row are arranged from small to large based on the cutting sequence.

7. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: The cutting areas formed by the cutting tools located in the same row are equal.

8. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: In S3, some of the plurality of cutting tools move in the same direction or in opposite directions; or, all of the plurality of cutting tools move in the same direction.

9. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: The cutter head is a grinding disc or a saw disc.

10. The single container type on-site treatment process of single glass photovoltaic modules according to claim 1, characterized in that: The peeling is formed based on the roller spikes on the circumference of the peeling roller.

11. The single container on-site treatment process for single glass photovoltaic modules according to claim 1, characterized in that: In S3, a cullet collection unit is used to collect cullets, wherein the cullets are centrally collected and guided downwards through a collecting hopper, and then discharged through a cullet conveyor belt at the bottom.

12. The single container on-site treatment process for single glass photovoltaic modules according to claim 1, characterized in that: The sides and the rear of the container can be turned over and opened, and the junction box and broken glass are unloaded from the sides of the container respectively; and the battery cells are unloaded from the rear.

13. The single container type on-site treatment process of a single glass photovoltaic module according to any one of claims 1 to 12, characterized in that: The on-site processing process further includes step SX, wherein step SX is to remove the frame arranged in the same container, and the frame removal step is located between the removal step of the junction box and the removal of the glass layer.

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