Container-type photovoltaic-module recycling apparatus

By designing container-type photovoltaic module recycling equipment and using container docking and connection transfer devices, the problems of high costs and technical obstacles in the existing photovoltaic module recycling model are solved, and efficient and low-cost photovoltaic module recycling and classification processing are achieved.

WO2025102944A1PCT designated stage expired Publication Date: 2025-05-22YC SOLUTION (SUZHOU) TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/117897
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-17
Filing Date
2024-09-10
Publication Date
2025-05-22

AI Technical Summary

Technical Problem

The existing photovoltaic module recycling model has problems of high recycling costs, low efficiency and field recycling technology barriers, especially due to the weight and field environment limitations of the photovoltaic module, which makes it difficult to effectively place and operate the recycling equipment.

Method used

A container-type photovoltaic module recycling equipment is designed, including a junction box removal device, a frame removal device and a glass peeling device. The container docking and connection transfer device is used to realize the continuous recycling and classification processing of photovoltaic modules.

Benefits of technology

Through container-type equipment, the transportation cost and on-site operation difficulty of photovoltaic module recycling are reduced, the obstacles to on-site recycling technology are overcome, the recycling efficiency and purity are improved, and the development of photovoltaic module recycling technology is promoted.

✦ Generated by Eureka AI based on patent content.

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Abstract

A container-type photovoltaic-module recycling apparatus, comprising at least two containers capable of being in butt joint with each other in the lengthwise direction, a connecting and transferring device located between every two adjacent containers, a junction-box dismounting device, a frame dismounting device and a glass removal device. On one hand, after the implementation of on-site recycling, the weight of recycled battery cells of a single photovoltaic module is about 10 g, and compared with an existing method for loading photovoltaic modules and recycling same in a centralized manner, the transportation cost is greatly reduced, the flexibility is high, and the practicability is strong; and on the other hand, by means of the butt joint, connection and transfer for the containers, the recycling apparatus is not limited by the levelness and a height difference on site, and once the containers are in butt joint with each other, recycling can be carried out in a site environment with inconsistent levelness, thereby overcoming the technical obstacles of on-site recycling, and promoting the development of on-site recycling techniques.
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Description

Containerized photovoltaic module recycling equipment Technical Field

[0001] The invention belongs to the technical field of photovoltaics, and in particular relates to container-type photovoltaic component recycling equipment. Background Art

[0002] Photovoltaics is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It can operate in two modes: standalone and grid-connected. A photovoltaic panel assembly is a power generation device that generates direct current when exposed to sunlight. It is composed almost entirely of thin, solid-state photovoltaic cells made of semiconductor materials (such as silicon). Specifically, it includes glass plates, EVA adhesive layers, solar cells, backplanes, junction boxes, and frames. Over 90% of these materials are recyclable, with considerable recycling value and high economic profits. Therefore, photovoltaic panels that have reached the end of their lifespan need to be recycled. This not only alleviates the shortage of raw materials for photovoltaic devices to a certain extent, but also prevents pollution to the environment.

[0003] However, the existing PV module recycling model basically involves first collecting the PV modules in a centralized manner, then loading and transporting them to a designated site, and then recycling them one by one. Therefore, this recycling model has the following drawbacks:

[0004] 1) A single PV module weighs approximately 18-30kg. Therefore, not only is the quantity limited during recycling and transportation, but the number of recycling and transportation trips also increases, resulting in high recycling costs and low returns. However, after disassembly and stripping, the weight of the cells in a single PV module is only 10-15g. Therefore, if the cells are recycled directly on-site, the transportation process will be significantly different.

[0005] 2) During the recycling process, recycling equipment is generally placed horizontally on the ground, and there are requirements such as height differences between adjacent processes that need to be connected. Only after a complete set of processes are dismantled can the recycling needs be met. However, if the recycling equipment is placed on site, due to the limitations of the on-site environment (horizontality and height differences, etc.), the placement problem of the recycling equipment cannot be solved. Therefore, recycling cannot be carried out under inconsistent levelness, resulting in obvious technical obstacles for on-site recycling, and also hindering the development of on-site recycling of photovoltaic modules. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved container-type photovoltaic module recycling device.

[0007] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0008] A container-type photovoltaic module recycling equipment includes a junction box removal device, a frame removal device, and a glass stripping device, wherein the glass stripping device includes a primary stripping unit, a secondary stripping unit, and a connection reversing unit. In particular, the glass stripping device also includes a stripping pretreatment unit located at the front end of the primary stripping unit, wherein the stripping pretreatment unit includes a stress relief mechanism and a preheating mechanism, the stress relief mechanism is used to prevent the glass from being cracked or broken under pressure, and the preheating mechanism softens the adhesive layer of the glass; the photovoltaic module recycling equipment also includes at least two sections of containers that can be docked from the ends in the length direction, and a connection transfer device located between two adjacent containers, the junction box removal device and the frame removal device are located in the same section of the container, and each unit of the glass stripping device is located in the remaining containers. A material port is formed on the side of each container, and the photovoltaic module passes through the connection transfer device to sequentially and continuously perform junction box removal, frame removal, stripping pretreatment, primary roller stripping, and secondary scraping of residual glass, wherein the junction box, frame, and broken glass are respectively unloaded from the material port; the battery cells are stored in the corresponding container or unloaded from the material port.

[0009] The container's sides are preferably wing-shaped and can be opened or closed along the length of the container. Dismantled junction boxes, frames, and broken glass are discharged from one or both sides of the corresponding container, while the battery cells are recovered inside the corresponding container. This allows for the classified collection of various components. Furthermore, when the wing doors are deployed, they facilitate easy observation and operation.

[0010] According to one specific embodiment and preferred aspect of the present invention, the container has two sections. The junction box and frame removal devices are located in the front section, and the glass stripping device is located in the rear section. During recovery, two transport vehicles are aligned and joined from the rear, connecting a transfer device to eliminate the drop between the front and rear sections. The photovoltaic modules, with their junction boxes and frames removed, are then guided into the stress relief mechanism. This direct docking of the two vehicles facilitates operation, is unaffected by the on-site environment, and offers strong adaptability.

[0011] Preferably, the first section of the container has two sub-boxes, the junction box removal device and the frame removal device are arranged in the two sub-boxes in sequence, and both sides of each sub-box are formed with flap doors that can be opened or closed to meet the needs of each use.

[0012] According to a specific embodiment and preferred aspect of the present invention, a docking transfer device is located at the rear end of the preceding or succeeding container, and the output end of the frame removal device is located above the input end of the stress relief mechanism. The docking transfer device includes a horizontally extending material receiving section and a material guide section arranged obliquely from top to bottom. A gradually narrowing transfer channel is formed between the material receiving section and the material guide section. This transfer channel allows docking even on a flat surface.

[0013] Preferably, the material receiving section and the material guiding section are both annular transmission belts. Annular transmission can more effectively eliminate height differences.

[0014] According to another specific embodiment and preferred aspect of the present invention, the stress relief mechanism includes a transmission channel connected to the transfer channel, a lifting component capable of vertical movement and connected to the photovoltaic module from the transmission channel, and a crushing head located at the top. After the lifting component is connected to the photovoltaic module, it rises upward and, under the vertical pressure exerted by the glass lamination crushing head, crushes the upper layer of glass. This extrusion method achieves multiple points of contact, resulting in a more effective crushing effect and facilitating subsequent glass peeling.

[0015] Preferably, the lifting component includes a telescopic cylinder and a carrier frame, wherein the support portion of the carrier frame is offset from the transmission channel, and the photovoltaic module is connected when the support portion emerges from the transmission surface of the transmission channel. The photovoltaic module is lifted and lowered by adopting the offset connection method.

[0016] In some embodiments, multiple crushing heads are arranged in an array on the bottom surface of the top base plate. Each crushing head comprises a fixed rod and a crushing head at the bottom of the fixed rod. The crushing head tapers gradually from top to bottom, with a spherical bottom. This creates optimal crushing pressure, reduces peeling difficulty, and prevents damage to the cell.

[0017] According to another specific embodiment and preferred aspect of the present invention, the preheating mechanism includes a heating furnace and a heating roller, wherein the heating roller forms the transmission surface, and the temperature within the heating furnace is 80-120°C. Generally, 90±2°C is sufficient. The purpose of the preheating temperature is to break down the stress between the adhesive film and the glass, making it easier to remove the glass.

[0018] According to another specific embodiment and preferred aspect of the present invention, the photovoltaic module recycling equipment further includes a backsheet removal device interfaced with the re-stripping unit, wherein the backsheet removal device includes a transfer unit and a grinding unit located above a transfer surface formed by the transfer unit, wherein the grinding unit performs wet grinding. Wet grinding of the backsheet eliminates environmental pollution and toxicity caused by the vaporization of fluorine-containing components, and also avoids contamination caused by backsheet residue, further improving the purity of the recovered silicon.

[0019] Preferably, the grinding unit includes a plurality of grinding groups located above the transmission surface formed by the transmission unit and arranged side by side, each grinding group includes a grinding tool and a cooling tool, wherein the grinding tool is a grinding wheel and / or a grinding belt grinding piece, and the cooling tool is a water flow flushing cooling tool.

[0020] In some specific embodiments, the transmission unit includes an endless transmission belt assembly and an inner support transmission roller located at the grinding site. The cooling tool is disposed corresponding to the inner support transmission roller and includes a water pipe located above the endless transmission belt assembly, high-pressure nozzles spaced along the length of the water pipe, and a cooling liquid pressurization supply component. The high-pressure nozzles are tilted downward and toward the grinding site, and the vertical component of the sprayed water flow forms a downward positive pressure that presses the battery cells against the endless transmission belt assembly while simultaneously being ground and transported by the endless transmission belt assembly. Therefore, the cooling process can also effectively assist the grinding process.

[0021] Furthermore, water pipes and high-pressure nozzles are symmetrically distributed on both sides of each internally supported conveyor roller, achieving cooling through counteraction. The horizontal forces offset each other, thus preventing interference with cell transport. Furthermore, the grinding wheel and / or belt grinding element aligns with the transport direction, facilitating transport. The belt grinding assembly utilizes at least two grits of sandpaper, with grit increasing in magnitude along the transport direction. This allows for coarse grinding and fine grinding, effectively improving backsheet removal quality.

[0022] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] On the one hand, after the on-site recycling is implemented in the present invention, the weight of the recycled solar cells of a single photovoltaic module is about 10g. In addition, the transportation cost of the equipment once is reduced compared with the existing centralized recycling of photovoltaic modules, and the transportation cost will be qualitatively reduced, and the flexibility and practicality are strong. On the other hand, through the docking and connection of containers for transit, it is not restricted by the levelness and height difference of the site. Once the containers are docked, recycling can be carried out in an on-site environment with inconsistent levelness, thereby overcoming the technical barriers of on-site recycling and promoting the development of on-site recycling technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of a container-type photovoltaic module recycling device according to the present invention;

[0025] Figure 2 is an enlarged schematic diagram of the structure of the container in the previous section of Figure 1;

[0026] FIG3 is a schematic diagram of the structure of the junction box removal device in FIG2 after the box wing door is unfolded;

[0027] FIG4 is a schematic structural diagram of the box body wing door where the frame removal device is located in FIG2 after it is unfolded;

[0028] Figure 5 is an enlarged schematic diagram of the structure of the rear container in Figure 1;

[0029] FIG6 is a simplified schematic diagram of the structure of FIG5;

[0030] FIG7 is a schematic structural diagram of the primary stripping unit in FIG6 ;

[0031] FIG8 is a schematic structural diagram of the re-stripping device in FIG6 ;

[0032] FIG9 is a schematic diagram of a partial structure of FIG8;

[0033] Among them: 1, container; 10, sub-box; 100, wing door;

[0034] 2. Connecting transfer device; 20. Material receiving section; 21. Material guiding section;

[0035] 3. Junction box removal device;

[0036] 4. Frame removal device;

[0037] 5. Glass stripping device; 50. Primary stripping unit; 51. Secondary stripping unit; 52. Connection reversing unit; 53. Stripping pretreatment unit; 531. Stress relief mechanism; a. Drive channel; b. Lifting component; b1. Telescopic cylinder; b2. Carrying frame; c. Extrusion crushing head; c1. Fixing rod; c2. Crushing head; 532. Preheating mechanism; d. Heating furnace; e. Heating roller;

[0038] 6. Back plate removal device; 60. Transmission unit; 600. Endless transmission belt assembly; 601. Internal support transmission roller; 61. Grinding unit; 610. Grinding group; m. Grinding tool; n. Cooling tool; n1. Water pipe; n2. High-pressure nozzle. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] As shown in Figure 1, the container-type photovoltaic module recycling equipment involved in this embodiment includes at least two containers 1 that can be docked at the ends in the length direction, a connecting transfer device 2 located between two adjacent containers 1, a junction box removal device 3, a frame removal device 4, and a glass stripping device 5.

[0041] In some specific embodiments, the container 1 has two sections, the junction box removal device 3 and the frame removal device 4 are located in the front section of the container 1, and the glass stripping device 5 is located in the rear section of the container 1. During recycling, the two transport vehicles are aligned and spliced ​​from the rear end of the vehicle, and the transfer device 2 is connected to eliminate the drop between the front and rear sections, and the photovoltaic components with the junction boxes and frames removed are guided to the glass stripping device 5, wherein a material port is formed on the side of each container 1, and the photovoltaic components pass through the transfer device 2 in sequence and continuously to perform junction box removal, frame removal, stripping pretreatment, initial roller stripping, and remove residual glass again, wherein the junction box, frame, and broken glass are respectively unloaded from the material port; the battery cells are stored in the corresponding container 1.

[0042] As shown in Figures 2 to 4, the first section of the container 1 has two sub-boxes 10, and the junction box removal device 3 and the frame removal device 4 are arranged in the two sub-boxes 10 in sequence, and both sides of each sub-box 10 form an unfolded or closed wing door 100, wherein the wing door 100 is flipped open or closed from the top of the sub-box 10 around the length direction of the container, and the opposite sides of the wing door 100 after unfolding form a material port, and the removed junction box and frame are unloaded from the material port formed by the opening of the wing door 100. At the same time, the junction box removal device 3 and the frame removal device 4 refer to ZL202211099557.6 respectively, and the patent name is: Integrated disassembly and assembly equipment and disassembly method of the frame and junction box of photovoltaic modules, wherein the junction box removal device 3 refers to the junction box removal station, and the frame removal device 4 refers to the frame removal station. Here, we will not elaborate on it, but it is clear and feasible.

[0043] As shown in Figure 5, the connecting transfer device 2 is located at the tail end of the rear container 1, and the output end of the frame removal device 4 is located above the input end of the glass stripping device 5. The connecting transfer device 2 includes a horizontally extending material receiving section 20 and a material guiding section 21 arranged obliquely from top to bottom, wherein a transfer channel that gradually becomes smaller from front to back is formed between the material receiving section 20 and the material guiding section 21, and both the material receiving section 20 and the material guiding section 21 are annular transmission belts.

[0044] As shown in Figures 6 to 9, the glass stripping device 5 includes a primary stripping unit 50, a secondary stripping unit 51, and a connecting and reversing unit 52. The glass stripping device 5 refers to ZL202310894070.5, and the patent name is: Glass stepwise stripping, dismantling and recycling equipment for photovoltaic modules, that is, the primary stripping device corresponds to the primary stripping unit 50 of the present application; the secondary stripping device corresponds to the secondary stripping unit 51 of the present application, and the connecting and reversing device corresponds to the connecting and reversing unit 52 of the present application. Here, no further details are given, and it is clear and feasible. That is to say, the primary stripping unit 50 can keep the broken photovoltaic module at the same slope so that the broken glass on the surface is stripped by the upper roller, and the secondary stripping unit 51 can keep the photovoltaic module at the same angle to remove the residual glass. The connecting and reversing unit 52 is used to reverse the front and back of the photovoltaic module and connect the primary stripping unit and the secondary stripping unit.

[0045] Referring to Figure 6 again, the glass stripping device 5 also includes a stripping pretreatment unit 53 located at the front end of the primary stripping unit 50, wherein the stripping pretreatment unit 53 includes a stress relief mechanism 531 and a preheating mechanism 532, the stress relief mechanism 531 is used to break or shatter the glass under pressure, and the stress relief mechanism 531 includes a transmission channel a docked with the transfer channel, a lifting component b that can move up and down and connect the photovoltaic component from the transmission channel a, and an extrusion and crushing head c located at the top, wherein the lifting component b is lifted upward after connecting with the photovoltaic component, and the upper layer of glass is broken under the up and down extrusion formed by the glass-bonding extrusion and crushing head c. In some specific embodiments, the lifting component b includes a telescopic cylinder b1 and a carrier frame b2, and the support part of the carrier frame b2 is misaligned with the transmission channel. When the support part emerges from the transmission surface of the transmission channel a, the connection of the photovoltaic component is completed. There are multiple crushing heads c arranged in an array on the bottom surface of the top base plate. Each crushing head c includes a fixed rod c1 and a crushing head c2 located at the bottom of the fixed rod c1. The crushing head gradually narrows from top to bottom, and the bottom is spherical. The crushing pressure generated is optimal, reducing the difficulty of peeling without causing damage to the battery cell. The preheating mechanism 532 softens the adhesive layer of the glass. The preheating mechanism 532 includes a heating furnace d and a heating roller e. The heating roller e forms the transmission surface, and the temperature formed in the heating furnace d is 80-120°C. Under normal circumstances, 90±2°C is sufficient. The purpose of the preheating temperature is to break the stress between the adhesive film and the glass, making it easier to remove the glass.

[0046] In addition, in order to further facilitate the subsequent processing of the solar cells, the photovoltaic module recycling equipment in this embodiment also includes a backsheet removal device 6 that is docked with the re-stripping unit 51, wherein the backsheet removal device 6 includes a transmission unit 60 and a grinding unit 61 located above the transmission surface formed by the transmission unit 60, wherein the grinding unit 61 performs wet grinding. The use of wet grinding to remove the backsheet does not cause environmental pollution and toxicity caused by the gasification of fluorine-containing components, and also avoids mixing caused by backsheet residues, further improving the purity of the recycled silicon. The grinding unit 61 includes a plurality of grinding groups 610 located above the transmission surface formed by the transmission unit 60 and arranged side by side, each grinding group 610 includes a grinding tool m and a cooling tool n, wherein the grinding tool m is a grinding wheel and / or a sanding belt grinding piece, and the cooling tool n is a water flow flushing cooling piece.

[0047] In some specific embodiments, the transport unit 60 includes an endless belt assembly 600 and an inner support transport roller 601 located at the grinding site. In this example, two grinding sites are used, arranged front and back. The grinding tool m is a belt grinder, and the grit of the sandpaper increases sequentially along the transport direction. This coarse grinding and fine grinding effectively improve the quality of backplane removal. Two inner support transport rollers 601 are provided, one corresponding to each grinding tool m. The cooling tool n corresponds one to each inner support transport roller 601 and is symmetrically arranged front and back about the inner support transport roller 601. The cooling tool n includes a water pipe n1 located above the endless belt assembly 600, high-pressure nozzles n2 spaced along the length of the water pipe n1, and a cooling liquid pressurization supply component. The high-pressure nozzle n2 is tilted downward and toward the grinding site, and the vertical component of the sprayed water flow forms a downward positive pressure to press the battery cell onto the endless belt assembly 600, while the endless belt assembly 600 simultaneously grinds and transports the battery cell. In addition, counter-flow water flow is used for cooling, and the horizontal components of the water flow offset each other, thereby not affecting the transmission of the battery cells; at the same time, the grinding direction of the grinding wheel and / or abrasive belt grinding member is the same as the transmission direction, which facilitates transmission; the grinding tool m can also use a combination of grinding wheel and abrasive belt grinding members for wet grinding.

[0048] In summary, the implementation process of this embodiment is as follows:

[0049] S1. Equipment assembly

[0050] Two transport vehicles are used to load the equipment separately, wherein the junction box removal device 3 and the frame removal device 4 are loaded into one container 1.

[0051] The glass stripping device 5 and the back panel removal device 6 are loaded into another container 1, and the two containers 1 are delivered to the recycling site, and the two transport vehicles are aligned from the rear to align and splice the two containers 1 in the front-to-back direction;

[0052] S2. Recycling

[0053] The photovoltaic module is sent to the junction box removal device 3, and the junction box and the adhesive are removed first. At the same time, the junction box is discharged from the side material port after the junction box is removed. The photovoltaic module with the junction box removed enters the frame removal device 4, and the long side and short side are removed by the frame removal device 4 respectively. At the same time, the long and short sides are discharged from the side material port after the removal. After the photovoltaic module with the frame removed enters the transfer channel and gradually descends to a horizontal state and is sent to the stripping pretreatment unit 53, and then it is squeezed and crushed by the stress relief mechanism 531, and then sent to a heating furnace at 90±2℃ for preheating to complete the softening of the adhesive. Then the pretreated photovoltaic module is sent to the glass stripping device 5, and the broken photovoltaic module is kept by the primary stripping unit 50 at the same slope and is stripped by the upper roller. The surface of the broken glass is connected with the reversing unit 52 for reversing the front and back of the photovoltaic module and connecting the initial stripping unit and the secondary stripping unit. The secondary stripping unit 51 is used to maintain the same angle of the photovoltaic module to scrape off the residual glass to complete the glass removal. At this time, the broken glass is discharged from the side material port, and at the same time, the battery cell enters the backboard removal device 6 with the backboard facing upwards. The backboard is removed by wet grinding to form a battery cell. The two-stage sand belt grinding piece is used in the wet grinding, and the sandpaper mesh number selected by the two-stage sand belt grinding piece increases. Then, the grinding and cooling are carried out under the downward impact formed by the high-pressure nozzle, and the battery cell is transferred to the collection layer of the container 1 in combination with the annular transmission belt assembly 600 to complete the battery cell recovery.

[0054] Therefore, after adopting the photovoltaic module recycling equipment, the equipment is assembled through the on-site container docking method, and the photovoltaic modules are sequentially and continuously subjected to junction box removal, frame removal, peeling pretreatment, initial roller peeling, and residual glass removal through the docking transfer device, wherein the junction box, frame, and broken glass are respectively unloaded from the material port, and the battery cells are stored in the corresponding container or unloaded from the material port. Therefore, on the one hand, after the on-site recycling is implemented in the present invention, the battery cells recycled by a single photovoltaic module weigh about 10g, and the transportation cost of the equipment is compared with the existing centralized recycling of photovoltaic modules, and the transportation cost will be qualitatively reduced, and the flexibility and practicality are strong; on the other hand, through container docking and docking transfer, it is not restricted by the on-site levelness and height difference. Once the container is docked, it can be recycled in an on-site environment with inconsistent levelness, thereby overcoming the technical barriers to on-site recycling and promoting on-site recycling technology. The development of technology; thirdly, the advantages of junction box and frame removal and glass stripping can be found in ZL202211099557.6 and ZL202310894070.5 respectively, which will not be elaborated here; fourthly, in the process of removing the glass and backplane, stress relief and preheating are combined to eliminate some stress, and the glass is stripped with high quality and without residue in the multiple stripping, which greatly reduces the mixing between silicon and silicon dioxide (glass) and reduces the difficulty of subsequent processing, and ultimately effectively improves the purity of silicon to meet the requirements of recycling. At the same time, wet grinding is used to remove the backplane, and the sprayed water flow is used to form positive pressure, and the water flow is used for cooling. At the same time, after the water flow is counteracted, the horizontal force components offset each other, which does not affect the transmission of the battery cell. Then, after cooling, the fluorine-containing components will not be vaporized, which will cause environmental pollution and toxicity. It also avoids mixing caused by backplane residues, further improving the purity of the recycled silicon.

[0055] 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 scope of protection of the present invention. Any equivalent changes or modifications made based on the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A container-type photovoltaic module recycling device, comprising a junction box removal device, a frame removal device, and a glass stripping device, wherein the glass stripping device comprises a primary stripping unit, a secondary stripping unit, and a connection reversing unit, characterized in that: The glass stripping device also includes a stripping pretreatment unit located at the front end of the primary stripping unit, wherein the stripping pretreatment unit includes a stress relief mechanism and a preheating mechanism, wherein the stress relief mechanism is used for glass to be cracked or broken under pressure, and the preheating mechanism softens the adhesive layer of the glass; the photovoltaic module recycling equipment also includes at least two sections of containers that can be docked from the ends in the length direction, and a connection transfer device located between two adjacent containers, the junction box removal device and the frame removal device are located in the same section of the container, and each unit of the glass stripping device is located in the remaining containers, the connection transfer device eliminates the drop between the front and rear sections, and the connection transfer device is located at the tail section of the previous container or the next container; a material port is formed on the side of each container, and the photovoltaic module passes through the connection transfer device to sequentially and continuously perform junction box removal, frame removal, stripping pretreatment, primary roller stripping, and re-shoveling of residual glass, wherein the junction box, frame, and broken glass are respectively unloaded from the material port; the battery cells are stored in the corresponding container or unloaded from the material port.

2. The containerized photovoltaic module recycling equipment according to claim 1 is characterized in that: The two sides of the container are wing-shaped and can be flipped open or closed around the length direction of the container. The dismantled junction box, frame, and broken glass are discharged from one side or both sides of the corresponding container, and the battery cells are recovered in the corresponding container.

3. The containerized photovoltaic module recycling equipment according to claim 1 is characterized in that: The container has two sections, the junction box removal device and the frame removal device are located in the front section of the container, and the glass stripping device is located in the back section of the container. When recycling, two transport vehicles are aligned and spliced ​​from the rear of the vehicle, and the connection transfer device guides the photovoltaic components with the junction box and frame removed to the stress relief mechanism.

4. The containerized photovoltaic module recycling equipment according to claim 3 is characterized in that: The container described in the previous section has two sub-boxes, the junction box removal device and the frame removal device are arranged in the two sub-boxes in sequence, and both sides of each sub-box form an unfolded or closed wing door.

5. The containerized photovoltaic module recycling equipment according to claim 3 is characterized in that: The output end of the frame removal device is located above the input end of the stress relief mechanism, and the connection transfer device includes a horizontally extending material receiving section and a material guiding section inclined from top to bottom, wherein a transfer channel that gradually becomes smaller from front to back is formed between the material receiving section and the material guiding section.

6. The containerized photovoltaic module recycling equipment according to claim 5 is characterized in that: The material receiving section and the material guiding section are both annular transmission belts.

7. The containerized photovoltaic module recycling equipment according to claim 1, characterized in that: The stress relief mechanism includes a transmission channel connected to the transfer channel, a lifting component that can move up and down and connect to the photovoltaic component from the transmission channel, and an extrusion crushing head located at the top. The lifting component is lifted upward after connecting to the photovoltaic component, and the upper layer of glass is crushed under the up and down extrusion formed by the glass sticking to the extrusion crushing head.

8. The containerized photovoltaic module recycling equipment according to claim 7 is characterized in that: The lifting component includes a telescopic cylinder and a carrier frame. The support portion of the carrier frame is misaligned with the transmission channel. When the support portion emerges from the transmission surface of the transmission channel, the connection of the photovoltaic module is completed.

9. The containerized photovoltaic module recycling equipment according to claim 7, characterized in that: There are multiple extrusion crushing heads, which are distributed in an array on the bottom surface of the top seat plate.

10. The containerized photovoltaic module recycling equipment according to claim 9, characterized in that: Each of the extrusion crushing heads comprises a fixing rod and a crushing head located at the bottom of the fixing rod, wherein the crushing head gradually narrows from top to bottom.

11. The containerized photovoltaic module recycling equipment according to claim 10, characterized in that: The bottom of the crushing head is spherical.

12. The containerized photovoltaic module recycling equipment according to claim 1, characterized in that: The preheating mechanism comprises a heating furnace and a heating roller, wherein the heating roller forms a transmission surface, and the temperature formed in the heating furnace is 80-120°C.

13. The containerized photovoltaic module recycling equipment according to claim 1, characterized in that: The photovoltaic module recycling equipment also includes a backplane removal device docked with the re-stripping unit, wherein the backplane removal device includes a transmission unit and a grinding unit located above a transmission surface formed by the transmission unit.

14. The containerized photovoltaic module recycling equipment according to claim 13, characterized in that: The grinding unit performs wet grinding.

15. The containerized photovoltaic module recycling equipment according to claim 14, characterized in that: The grinding unit includes a plurality of grinding groups located above the transmission surface formed by the transmission unit and arranged side by side, each of the grinding groups includes a grinding tool and a cooling tool, wherein the grinding tool is a grinding wheel and / or a grinding belt grinding piece, and the cooling tool is a water flow flushing cooling tool.

16. The containerized photovoltaic module recycling equipment according to claim 15, characterized in that: The transmission unit comprises an endless transmission belt assembly and an inner supporting transmission roller located at the grinding position.

17. The containerized photovoltaic module recycling equipment according to claim 16, characterized in that: The cooling tool is arranged corresponding to the inner support transmission roller, and the cooling tool includes a water pipe located above the annular transmission belt assembly, high-pressure nozzles distributed on the water pipe at intervals along the length direction of the water pipe, and a cooling liquid pressurization supply component, wherein the high-pressure nozzle is arranged downward and inclined toward the grinding position, and the component force of the sprayed water flow in the vertical direction constitutes a downward positive pressure to press the battery cell onto the annular transmission belt assembly, and at the same time, it is ground and transmitted under the transmission of the annular transmission belt assembly.

18. The containerized photovoltaic module recycling equipment according to claim 17, characterized in that: The water pipes and high-pressure nozzles are symmetrically distributed on both sides of each inner-supporting transmission roller.

19. The containerized photovoltaic module recycling equipment according to claim 15, characterized in that: The grinding direction of the grinding wheel and / or the belt grinding member is the same as the transmission direction.

20. The containerized photovoltaic module recycling equipment according to claim 15, characterized in that: There are at least two grits of sandpaper used in the belt grinding assembly.

21. The containerized photovoltaic module recycling equipment according to claim 20, characterized in that: The grit of sandpaper increases along the conveying direction.

22. A container-type photovoltaic module recycling device, comprising a junction box removal device, a frame removal device, and a glass stripping device, wherein the glass stripping device comprises a primary stripping unit, a secondary stripping unit, and a connection reversing unit, characterized in that: The glass stripping device also includes a stripping pretreatment unit located at the front end of the primary stripping unit, wherein the stripping pretreatment unit includes a stress relief mechanism and a preheating mechanism, the stress relief mechanism is used to prevent the glass from being cracked or broken under pressure, and the preheating mechanism softens the adhesive layer of the glass; the photovoltaic module recycling equipment also includes at least two sections of containers that can be docked from the ends in the length direction, and a connection transfer device located between two adjacent containers, the junction box removal device and the frame removal device are located in the same section of the container, and each unit of the glass stripping device is located in the remaining container, the connection transfer device eliminates the drop between the front and rear sections, and the connection transfer device is located at the tail of the previous container or the next container. The side of each container forms a material port, and the photovoltaic components are sequentially and continuously removed from the junction box, frame, stripping pretreatment, initial roller stripping, and residual glass removal through the connection transfer device, wherein the junction box, frame, and broken glass are respectively unloaded from the material port; the battery cells are stored in the corresponding container or unloaded from the material port; the two sides of the container are wing-shaped and are flipped open or closed around the length direction of the container, and the removed junction box, frame, and broken glass are discharged from one side or both sides of the corresponding container, and the battery cells are recovered in the corresponding container; the container has two sections, the junction box removal device and the frame removal device are located in the container of the previous section, and the glass stripping device is located in the container of the latter section, During recycling, the two transport vehicles are aligned and spliced ​​from the rear of the vehicles, and the connection transfer device guides the photovoltaic components with the junction box and frame removed to the stress relief mechanism; the container described in the previous section has two sub-boxes, and the junction box removal device and the frame removal device are arranged in the two sub-boxes in sequence, and both sides of each sub-box form an unfolded or closed wing door; the output end of the frame removal device is located above the input end of the stress relief mechanism, and the connection transfer device includes a horizontally extending material connection section and a material guide section inclined from top to bottom, wherein a transfer channel that gradually becomes smaller from front to back is formed between the material connection section and the material guide section; the material connection section and the material guide section are both annular transmission belts; the stress relief mechanism includes a material connection section connected to the transfer section. A transmission channel connected to the channel, a lifting component that can move up and down and connect to the photovoltaic module from the transmission channel, and an extrusion crushing head located at the top, wherein the lifting component is lifted upward after connecting to the photovoltaic module, and the upper layer of glass is crushed under the up and down extrusion formed by the glass sticking to the extrusion crushing head; the lifting component includes a telescopic cylinder and a carrier, the support part of the carrier is misaligned with the transmission channel, and the connection of the photovoltaic module is completed when the support part emerges from the transmission surface of the transmission channel; there are multiple extrusion crushing heads, and they are distributed in an array on the bottom surface of the top seat plate; each extrusion crushing head includes a fixed rod and a crushing head located at the bottom of the fixed rod, wherein the crushing head gradually narrows from top to bottom; the bottom of the crushing head is spherical;The preheating mechanism includes a heating furnace and a heating roller, wherein the heating roller forms a transmission surface, and the temperature formed in the heating furnace is 80-120°C; the photovoltaic module recycling equipment also includes a backplane removal device docked with the re-stripping unit, wherein the backplane removal device includes a transmission unit and a grinding unit located above the transmission surface formed by the transmission unit, the grinding unit performs wet grinding, and the grinding unit includes a plurality of grinding groups located above the transmission surface formed by the transmission unit and arranged side by side, each of the grinding groups includes a grinding tool and a cooling tool, wherein the grinding tool is a grinding wheel and / or a grinding belt grinding piece, and the cooling tool is a water flow flushing cooling tool; the transmission unit includes an annular transmission belt assembly, and an internal support transmission unit located at the grinding position. Roller, the cooling tool is arranged corresponding to the inner support transmission roller, and the cooling tool includes a water pipe located above the annular transmission belt assembly, high-pressure nozzles distributed on the water pipe at intervals along the length direction of the water pipe, and a cooling liquid pressurization supply component, wherein the high-pressure nozzle is arranged downward and tilted toward the grinding position, and the component force of the sprayed water flow in the vertical direction constitutes a downward positive pressure to press the battery sheet on the annular transmission belt assembly, and grind and transmit under the transmission of the annular transmission belt assembly; the water pipe and high-pressure nozzle are symmetrically distributed on both sides of each inner support transmission roller; the grinding direction of the grinding wheel and / or the abrasive belt grinding part is the same as the transmission direction; the sandpaper mesh number used in the abrasive belt grinding assembly is at least two; the sandpaper mesh number increases successively along the transmission direction. ;

Citation Information

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