Disposal system and disposal method for crushing and pyrolyzing waste photovoltaic laminated parts

Abstract

The invention provides a waste photovoltaic laminated part crushing and pyrolysis disposal system and method, the system comprises a crushing unit, a spreading unit and a pyrolysis decarburization unit, and a crushing mechanism is arranged in the crushing unit; the spreading unit comprises a transfer belt and a reciprocating vibrator, a crushed material conveying chain plate is connected between the feeding end of the transfer belt and the crushing unit, and crushed materials on the transfer belt are uniformly spread through vibration of the reciprocating vibrator; the pyrolysis decarburization unit comprises a conveying mechanism and a pyrolysis decarburization furnace, and the crushed materials are conveyed into the pyrolysis decarburization furnace for pyrolysis and decarburization. According to the invention, the complete photovoltaic panel can be placed in the feeding area and then subjected to the processes of automatic crushing, uniform feeding of crushed materials into the furnace and heat treatment, the separation efficiency of glass and a silicon plate can be effectively improved while automatic treatment is realized, the volatilization and precipitation efficiency of organic components of the photovoltaic laminated part is improved, and the treatment time is shortened. By arranging the crushing unit, the size of the furnace body and the size of the feeding port can be reduced, and the manufacturing cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic pyrolysis, and in particular to a system and method for crushing and pyrolyzing waste photovoltaic laminates. Background Art

[0002] Photovoltaic modules are generally composed of aluminum frames, junction boxes, tempered glass, EVA film crystalline silicon cells and TPT backboards. Whole photovoltaic panels refer to the tempered glass panels (whole pieces), EVA film crystalline silicon cells and TPT backboards after the aluminum frames and junction boxes are separated from the photovoltaic modules.

[0003] The chain-plate pyrolysis device is the basis of photovoltaic pyrolysis. The existing chain-plate pyrolysis device includes a chain plate and an inlet and outlet. The chain plate is located below the inlet. The existing pyrolysis device uses fuel (such as natural gas) or thermocouples to generate a high-temperature heat source to provide the energy required for pyrolysis to the entire pyrolysis device. The pyrolysis temperature is usually ≥500°C, and an inert gas (such as high nitrogen) is required as a carrier gas during the pyrolysis process. The purpose of pyrolysis is to volatilize the EVA that bonds the glass and silicon plates and the backplane behind the assembly. Therefore, selecting the appropriate pyrolysis temperature and the disposal form of the assembly to quickly decompose these two organic substances is a key factor in improving the separation efficiency of the assembly.

[0004] Photovoltaic modules after pyrolysis usually have a high amount of residual carbon, which needs to be removed through high-temperature oxidation. The decarbonization process also requires heating, usually to above 500°C, and requires oxygen or air as a carrier gas.

[0005] In the pyrolysis recycling process of waste photovoltaic modules, when the whole photovoltaic panel is directly put into the furnace for disposal, the organic components in the middle of the laminate will have a long path to volatilize and separate, which will lead to a long time for pyrolysis and separation, thus reducing the disposal efficiency. A further reason is that the current furnace and system for scrap disposal have a low degree of automation, uneven material laying, and the gas after thermal decomposition of EVA in the center of the whole photovoltaic panel is between the glass and the silicon plate, and the volatilization path is long, resulting in low volatilization efficiency.

[0006] The size of a complete photovoltaic panel is about 2m×1m, which requires high size of the pyrolysis furnace and the feed port of each device, which will increase the equipment cost. Currently, manual handling is often used in the process of crushing and laying material feeding, which will increase labor costs. Summary of the invention

[0007] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the present invention provides a waste photovoltaic laminate crushing pyrolysis disposal system and method, which can effectively improve the separation efficiency of glass and silicon plates and reduce costs.

[0008] In one aspect, an embodiment of the present invention proposes a system for crushing and pyrolyzing waste photovoltaic laminates, comprising: a crushing unit, a material spreading unit and a pyrolysis decarbonization unit, wherein the crushing unit has a crushing chamber and a feed port and a discharge port connected to the crushing chamber, the feed port of the crushing unit is connected to the feed unit to transport the photovoltaic laminates into the crushing chamber, and a crushing mechanism for crushing the photovoltaic laminates is provided in the crushing chamber; the material spreading unit comprises a conveying belt and a reciprocating vibrator, the conveying belt has a feed end and a discharge end, the feed end of the conveying belt is connected to the crushing chamber, and the crushing chamber is provided with a crushing mechanism for crushing the photovoltaic laminates ... A crushing unit is connected with a crushing chain plate to convey the crushed crushed crushed material to a transfer belt, and the crushed material on the transfer belt is evenly spread out by the vibration of a reciprocating vibrator; the pyrolysis decarburization unit comprises a transmission mechanism and a pyrolysis decarburization furnace, the transmission mechanism having a feed end and a discharge end, the feed end of the transmission mechanism being located below the discharge end of the transfer belt to convey the spread crushed material to the transmission mechanism, the transmission mechanism passes through the feed port and the discharge port of the pyrolysis decarburization furnace to convey the crushed material to the pyrolysis decarburization furnace for pyrolysis and decarburization.

[0009] In some embodiments, an atmosphere replacement chamber is provided at the feed inlet of the pyrolysis decarbonization furnace, and a transmission mechanism runs through the atmosphere replacement chamber. The atmosphere replacement chamber has an air inlet and an air outlet. The air inlet of the atmosphere replacement chamber is connected to a nitrogen gas source, and the air outlet of the atmosphere replacement chamber is connected to a vacuum pump to replace the gas in the atmosphere replacement chamber with nitrogen gas.

[0010] In some embodiments, the pyrolysis decarburization furnace has an air inlet and an air outlet. The air inlet of the pyrolysis decarburization furnace is connected to an air source and a nitrogen source through pipelines, and the gas source is switched by a control valve. The air outlet of the pyrolysis decarburization furnace is connected to an exhaust pipe.

[0011] In some embodiments, the feeding unit includes a loading chain plate and a transmission chain plate, the loading chain plate is connected to the transmission chain plate, the loading chain plate is arranged in a horizontal direction, and the transmission chain plate is arranged upwardly inclined, the transmission chain plate has a feeding end and a discharging end, the discharging end of the transmission chain plate is higher than the feeding end, and the discharging end of the transmission chain plate is located above the feeding port of the crushing unit.

[0012] In some embodiments, the crushing mechanism is a double-shaft crushing cutter head.

[0013] In some embodiments, the reciprocating vibrator is arranged below the conveying belt, and the vibration of the reciprocating vibrator drives the conveying belt to vibrate. When the reciprocating vibrator is started, the conveying belt is in a stationary state; when the crushed materials are evenly spread, the reciprocating vibrator is turned off and the conveying belt is started.

[0014] In some embodiments, baffles are fixedly connected to both side edges of the transfer belt to prevent the broken materials from falling off the transfer belt during vibration.

[0015] In some embodiments, the exhaust pipe of the pyrolysis decarburization furnace is connected to a gas processing device.

[0016] In some embodiments, a receiving tray is provided below the transfer belt.

[0017] On the other hand, an embodiment of the present invention proposes a method for crushing and pyrolyzing waste photovoltaic laminates, using the above-mentioned waste photovoltaic laminate crushing and pyrolyzing disposal system, including the following steps: placing a complete photovoltaic laminate on a feeding unit by mechanical or manual means, the feeding unit conveys the photovoltaic laminate into a crushing chamber, and the crushing mechanism crushes the photovoltaic laminate into fragments; the fragments are conveyed to a conveying belt of a spreading unit, and a reciprocating vibrator spreads the fragments evenly on the conveying belt by horizontal vibration. When the reciprocating vibrator is working, the conveying belt is in a stationary state. When the fragments are evenly spread, the reciprocating vibrator is turned off, the conveying belt is started, and the fragments are conveyed to a transmission mechanism of a pyrolytic decarburization unit; the fragments enter an atmosphere replacement chamber through the transmission mechanism, and the air atmosphere in the atmosphere replacement chamber is replaced with a nitrogen atmosphere. Then, the fragments are conveyed to a pyrolytic decarburization furnace for pyrolysis and decarburization. After the fragments are pyrolyzed and decarburized, the glass and silicon plates are completely separated, and the glass and silicon plates are conveyed out of the pyrolytic decarburization furnace through the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0019] in:

[0020] Figure 1 It is a structural schematic diagram of a waste photovoltaic laminate crushing and pyrolysis disposal system in an embodiment of the present invention;

[0021] Reference numerals:

[0022] 1. Loading chain plate; 2. Transmission chain plate; 3. Crushing chamber; 4. Double-axis crushing cutter head; 5. Crushing material conveying chain plate; 6. Transfer belt; 7. Reciprocating vibrator; 8. Atmosphere replacement chamber; 9. Pyrolysis decarburization furnace; 10. Transmission mechanism. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] The following describes the waste photovoltaic laminate crushing and pyrolysis disposal system and disposal method according to the embodiment of the present invention with reference to the accompanying drawings.

[0025] like Figure 1As shown, an embodiment of the present invention proposes a waste photovoltaic laminate crushing and pyrolysis disposal system, including: a crushing unit, a material spreading unit and a pyrolysis decarbonization unit, the crushing unit has a crushing chamber 3 and a feed port and a discharge port connected to the crushing chamber 3, the feed port of the crushing unit is connected to the feed unit to transport the photovoltaic laminate into the crushing chamber 3, and the crushing chamber 3 is provided with a crushing mechanism for crushing the photovoltaic laminate; the material spreading unit includes a transfer belt 6 and a reciprocating vibrator 7, the transfer belt 6 has a feed end and a discharge end, and there is a gap between the feed end of the transfer belt 6 and the crushing unit. The crushed material conveying chain plate 5 is connected to convey the crushed material to the transfer belt 6. The crushed material on the transfer belt 6 is evenly spread out by the vibration of the reciprocating vibrator 7. The pyrolysis decarbonization unit includes a transmission mechanism 10 and a pyrolysis decarbonization furnace 9. The transmission mechanism 10 has a feed end and a discharge end. The feed end of the transmission mechanism 10 is located below the discharge end of the transfer belt 6 to transfer the spread material to the transmission mechanism 10. The transmission mechanism 10 passes through the feed port and the discharge port of the pyrolysis decarbonization furnace 9 to convey the crushed material to the pyrolysis decarbonization furnace 9 for pyrolysis and decarbonization.

[0026] The embodiment of the present invention can realize the process of automatic crushing, uniform feeding of crushed materials into the furnace, and heat treatment after placing the complete photovoltaic panel in the feeding area by setting the crushing unit and the material spreading unit upstream of the pyrolysis decarbonization unit, and realize the automatic treatment while effectively improving the separation efficiency of glass and silicon panels, and improving the volatilization and precipitation efficiency of organic components of photovoltaic laminates, and reducing the treatment time. By setting the crushing unit, the size of the furnace body and the size of the feeding port can be reduced, saving manufacturing costs.

[0027] Furthermore, the transmission mechanism 10 may be a chain conveyor.

[0028] In some embodiments, an atmosphere replacement chamber 8 is provided at the feed port of the pyrolysis decarburization furnace 9, a transmission mechanism 10 runs through the atmosphere replacement chamber 8, the atmosphere replacement chamber 8 has an air inlet and an air outlet, the air inlet of the atmosphere replacement chamber 8 is connected to a nitrogen gas source, and the air outlet of the atmosphere replacement chamber 8 is connected to a vacuum pump to replace the gas in the atmosphere replacement chamber 8 with nitrogen gas. By providing the atmosphere replacement chamber 8, external air can be prevented from entering the furnace of the pyrolysis decarburization furnace 9, ensuring that the atmosphere in the furnace is not disturbed.

[0029] Furthermore, the feed port and the discharge port of the atmosphere replacement chamber 8 are both provided with an openable and closable sealed door. When the crushed materials need to enter the atmosphere replacement chamber 8, the sealed door of the feed port is first opened, and the crushed materials enter the atmosphere replacement chamber 8 along the transmission mechanism 10, and the sealed door of the feed port is closed to replace the gas. After replacing the gas, the sealed door of the discharge port is opened, the crushed materials are transported to the pyrolysis decarbonization furnace 9, and the sealed door of the discharge port is closed, and then the pyrolysis decarbonization furnace 9 pyrolyzes the crushed materials.

[0030] In some embodiments, the pyrolysis decarburization furnace 9 has an air inlet and an air outlet, the air inlet of the pyrolysis decarburization furnace 9 is connected to an air source and a nitrogen gas source through pipelines, and the gas source is switched by a control valve, and the gas outlet of the pyrolysis decarburization furnace 9 is connected to an exhaust pipe. The integration of pyrolysis and decarburization can be achieved by switching the gas source, which can save equipment costs.

[0031] It should be noted that after the pyrolysis of the pyrolysis decarburization furnace 9, it is not necessary to completely discharge the nitrogen in the furnace body. It is only necessary to open the gas outlet of the pyrolysis decarburization furnace 9 and the gas inlet of the air source to partially displace the nitrogen in the furnace body. After displacing for a period of time, the gas inlet and gas outlet of the pyrolysis decarburization furnace 9 are closed. This is because oxygen is required to participate in the reaction during the decarburization process, and only a small amount of oxygen in the furnace body is required to complete the decarburization.

[0032] Furthermore, a pump body is connected to the air inlet of the pyrolysis decarburization furnace 9 to promote the gas to enter the pyrolysis decarburization furnace 9 .

[0033] Furthermore, the air source may be replaced by an oxygen source.

[0034] Furthermore, the sealing of the furnace body of the pyrolysis and decarburization furnace 9 can be ensured through various sealing measures during the pyrolysis or decarburization process.

[0035] In some alternative embodiments, the integrated pyrolysis and decarburization unit may also be replaced by a sequential split device, or any other device that can achieve the pyrolysis and decarburization processes.

[0036] In some embodiments, the feeding unit includes a feeding chain plate 1 and a transmission chain plate 2, the feeding chain plate 1 is connected to the transmission chain plate 2, the feeding chain plate 1 is arranged in a horizontal direction, the transmission chain plate 2 is arranged upwardly inclined, the transmission chain plate 2 has a feeding end and a discharging end, the discharging end of the transmission chain plate 2 is higher than the feeding end, and the discharging end of the transmission chain plate 2 is located above the feeding port of the crushing unit. Since the crushing unit has a certain height, the photovoltaic laminate needs to be transported from a low place to a high place, and the lifting process can be omitted.

[0037] In some embodiments, the crushing mechanism is a double-shaft crushing blade 4, which can quickly crush the photovoltaic laminate into fragments, thereby improving efficiency.

[0038] In some embodiments, the reciprocating vibrator 7 is arranged below the transfer belt 6. The vibration of the reciprocating vibrator 7 drives the transfer belt 6 to vibrate. When the reciprocating vibrator 7 is started, the transfer belt 6 is in a stationary state. When the crushed materials are evenly spread, the reciprocating vibrator 7 is turned off and the transfer belt 6 is started.

[0039] In some embodiments, baffles are fixedly connected to both side edges of the transfer belt 6 to prevent the broken materials from falling off the transfer belt 6 during vibration.

[0040] In some embodiments, the exhaust pipe of the pyrolysis decarbonization furnace 9 is connected to a gas treatment device, so that the pyrolysis gas generated after pyrolysis is purified and then discharged into the atmosphere to avoid causing air pollution.

[0041] In some embodiments, a receiving tray is provided below the transfer belt 6 to prevent the residual scraps from falling to the ground when the transfer belt 6 returns, thus wasting resources. After receiving a certain amount of material, the receiving tray can be poured onto the transmission mechanism 10 of the pyrolysis decarburization unit.

[0042] Another embodiment of the present invention provides a method for crushing and pyrolyzing waste photovoltaic laminates, using the above-mentioned waste photovoltaic laminate crushing and pyrolyzing system, including the following steps: placing the complete photovoltaic laminate on the feeding unit by mechanical or manual means, the feeding unit conveys the photovoltaic laminate into the crushing chamber 3, and the crushing mechanism crushes the photovoltaic laminate into crushed materials; the crushed materials are conveyed to the conveying belt 6 of the spreading unit, and the reciprocating vibrator 7 spreads the crushed materials evenly on the conveying belt 6 by vibrating in the horizontal direction, and the reciprocating vibrator When the conveyor belt 6 is working, the conveyor belt 6 is in a stationary state. When the crushed materials are evenly spread, the reciprocating vibrator 7 is turned off, and the conveyor belt 6 is started to transfer the crushed materials to the transmission mechanism 10 of the pyrolysis decarburization unit; the crushed materials enter the atmosphere replacement chamber 8 through the transmission mechanism 10, and the air atmosphere in the atmosphere replacement chamber 8 is replaced by a nitrogen atmosphere, and then the crushed materials are transferred to the pyrolysis decarburization furnace 9 for pyrolysis and decarburization. After the crushed materials are pyrolyzed and decarburized, the glass and the silicon plate are completely separated, and the glass and the silicon plate are sent out of the pyrolysis decarburization furnace 9 through the transmission mechanism 10.

[0043] The disposal method of the embodiment of the present invention can realize the process of automatically crushing the complete photovoltaic panel after placing it in the feeding area, evenly feeding the crushed materials into the furnace, and heat treatment. While realizing automated disposal, it can effectively improve the separation efficiency of glass and silicon panels, as well as the volatilization and precipitation efficiency of organic components of photovoltaic laminates, and reduce the disposal time.

[0044] Further, the complete photovoltaic laminate is placed on the feeding chain plate 1 by mechanical or manual means, and the photovoltaic laminate is conveyed upward to the feed port of the crushing unit along the transmission chain plate 2. The size of the feed port satisfies the photovoltaic laminate to fall naturally into the crushing chamber 3, and the photovoltaic laminate is crushed into small-sized fragments by the double-axis crushing cutter head 4. The fragments are conveyed to the transfer belt 6 of the material spreading unit through the fragment conveying chain plate 5, and the reciprocating vibrator 7 spreads the fragments evenly on the transfer belt 6 through horizontal vibration. It should be noted that when the fragments fall into the transfer belt 6, the transfer belt 6 is in a stationary state. When the fragments are evenly spread, the transfer belt 6 starts to convey, and the fragments are conveyed to the front feed chain plate of the pyrolysis decarbonization unit, and then enter the atmosphere replacement chamber 8 to complete the transition from air atmosphere to nitrogen atmosphere, so as to avoid the external air from affecting the oxygen-deficient atmosphere in the furnace. Then the fragments enter the pyrolysis decarbonization furnace 9, and the fragments are pyrolyzed. The pyrolysis process needs to be carried out under oxygen-free conditions. After the pyrolysis is completed, air or oxygen is introduced into the pyrolysis decarburization furnace 9 to decarburize the crushed material. The decarburization process needs to be carried out under oxygen conditions. After decarburization, the glass and the silicon plate are completely separated and sent out of the pyrolysis decarburization furnace 9 by the transmission mechanism 10.

[0045] 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] 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.

[0047] In the present invention, unless otherwise clearly specified and limited, 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection 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.

[0048] In the present 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 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.

[0049] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A system for crushing and pyrolyzing waste photovoltaic laminates, characterized in that: include: A crushing unit, the crushing unit having a crushing chamber and a feed port and a discharge port connected to the crushing chamber, the feed port of the crushing unit being connected to the feed unit so as to convey the photovoltaic laminate into the crushing chamber, and a crushing mechanism for crushing the photovoltaic laminate being arranged in the crushing chamber; A material spreading unit, the material spreading unit comprising a conveying belt and a reciprocating vibrator, the conveying belt having a feeding end and a discharging end, a crushing material conveying chain plate being connected between the feeding end of the conveying belt and the crushing unit to convey the crushed crushed material to the conveying belt, and the crushed material on the conveying belt is evenly spread by the vibration of the reciprocating vibrator; A pyrolysis decarburization unit, the pyrolysis decarburization unit includes a transmission mechanism and a pyrolysis decarburization furnace, the transmission mechanism has a feed end and a discharge end, the feed end of the transmission mechanism is located below the discharge end of the transfer belt to transmit the crushed materials after laying to the transmission mechanism, the transmission mechanism passes through the feed port and the discharge port of the pyrolysis decarburization furnace to transport the crushed materials into the pyrolysis decarburization furnace for pyrolysis and decarburization.

2. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: An atmosphere replacement chamber is provided at the feed inlet of the pyrolysis decarbonization furnace, and the transmission mechanism runs through the atmosphere replacement chamber. The atmosphere replacement chamber has an air inlet and an air outlet. The air inlet of the atmosphere replacement chamber is connected to a nitrogen gas source, and the air outlet of the atmosphere replacement chamber is connected to a vacuum pump to replace the gas in the atmosphere replacement chamber with nitrogen gas.

3. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 2 is characterized in that: The pyrolysis decarburization furnace has an air inlet and an air outlet. The air inlet of the pyrolysis decarburization furnace is connected to an air source and a nitrogen source through pipelines, and the gas source is switched by a control valve. The air outlet of the pyrolysis decarburization furnace is connected to an exhaust pipe.

4. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: The feeding unit includes a loading chain plate and a transmission chain plate, the loading chain plate is connected to the transmission chain plate, the loading chain plate is arranged in a horizontal direction, and the transmission chain plate is arranged upwardly inclined, and the transmission chain plate has a feeding end and a discharging end, the discharging end of the transmission chain plate is higher than the feeding end, and the discharging end of the transmission chain plate is located above the feeding port of the crushing unit.

5. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: The crushing mechanism is a double-shaft crushing cutter head.

6. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: The reciprocating vibrator is arranged below the conveying belt, and the vibration of the reciprocating vibrator drives the conveying belt to vibrate. When the reciprocating vibrator is started, the conveying belt is in a stationary state; when the crushed materials are evenly spread, the reciprocating vibrator is turned off and the conveying belt is started.

7. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: The two side edges of the transfer belt are fixedly connected to baffles to prevent the broken materials from falling from the transfer belt during vibration.

8. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: The exhaust pipe of the pyrolysis decarburization furnace is connected to the gas processing device.

9. The waste photovoltaic laminate crushing and pyrolysis treatment system according to claim 1 is characterized in that: A material receiving tray is arranged below the transfer belt.

10. A method for crushing and pyrolyzing waste photovoltaic laminates, characterized in that: The waste photovoltaic laminate crushing and pyrolysis disposal system according to any one of claims 1 to 9 comprises the following steps: Placing the complete photovoltaic laminate on a feeding unit mechanically or manually, wherein the feeding unit conveys the photovoltaic laminate into a crushing chamber, and a crushing mechanism crushes the photovoltaic laminate into crushed materials; The crushed materials are transported to the conveying belt of the material spreading unit, and the reciprocating vibrator spreads the crushed materials evenly on the conveying belt by vibrating in the horizontal direction. When the reciprocating vibrator is working, the conveying belt is in a stationary state. When the crushed materials are evenly spread, the reciprocating vibrator is turned off, and the conveying belt is started to convey the crushed materials to the transmission mechanism of the pyrolysis decarbonization unit. The crushed materials enter the atmosphere replacement chamber through the transmission mechanism, and the air atmosphere in the atmosphere replacement chamber is replaced with a nitrogen atmosphere. The crushed materials are then transmitted to the pyrolysis and decarburization furnace for pyrolysis and decarburization. After the pyrolysis and decarburization of the crushed materials, the glass and the silicon plate are completely separated, and the glass and the silicon plate are sent out of the pyrolysis and decarburization furnace through the transmission mechanism.

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