Pyrolysis apparatus for photovoltaic modules

Abstract

This invention provides a pyrolysis apparatus for photovoltaic modules. The apparatus includes a pyrolysis furnace and an integrated conveyor line. The integrated conveyor line comprises a feeding end, a pyrolysis section, and a discharging end arranged sequentially along the conveying direction of the conveyor line. The pyrolysis section is located inside the pyrolysis furnace, while the feeding and discharging ends are located outside the furnace. This pyrolysis apparatus uses the integrated conveyor line to transport photovoltaic modules, allowing them to pass through the interior of the pyrolysis furnace for pyrolysis. During transport on the integrated conveyor line, the photovoltaic modules do not experience vibration, shifting, or transfer between multiple conveyor lines, thus ensuring the integrity of the glass panels.

Description

Technical Field

[0001] This invention relates to the field of photovoltaics, and more specifically to a pyrolysis apparatus for photovoltaic modules. Background Technology

[0002] Photovoltaic modules are typically formed by laminating layers of glass panels, EVA (ethylene-vinyl acetate copolymer) film, crystalline silicon solar cells, and TPT (polyvinyl fluoride composite film) backsheet, then encapsulating them before placing them in an aluminum frame and mounting a junction box. The aluminum frame, junction box, glass panels, and crystalline silicon solar cells are all recyclable. Currently, photovoltaic module recycling and dismantling usually utilizes pyrolysis equipment, which softens and decomposes the EVA film to separate and recycle the various layers. However, in these technologies, photovoltaic modules are susceptible to impact and abrasion at the pyrolysis unit, leading to damage to the glass panels and rendering them unrecyclable. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art. To this end, embodiments of the present invention provide a pyrolysis apparatus for photovoltaic modules that ensures the integrity of the glass plates.

[0004] The pyrolysis apparatus for photovoltaic modules according to embodiments of the present invention includes:

[0005] pyrolysis furnace;

[0006] An integrated conveyor line includes a feeding end, a pyrolysis section, and a discharging end arranged sequentially along the conveying direction of the integrated conveyor line. The pyrolysis section is located inside the pyrolysis furnace, while the feeding end and the discharging end are located outside the pyrolysis furnace.

[0007] The pyrolysis apparatus of this invention transports photovoltaic modules through an integrated conveyor line and allows the photovoltaic modules to pass through the interior of the pyrolysis furnace for pyrolysis. When the photovoltaic modules are transported on the integrated conveyor line, there are no issues of vibration, movement, or transfer between multiple conveyor lines, thus ensuring the integrity of the glass plate.

[0008] In some embodiments, the integral conveyor line includes:

[0009] The rotating shafts are at least two arranged at intervals along the conveying direction, one of which is located at the loading end and the other is located at the unloading end;

[0010] The carrier portion is surrounded on at least two of the rotating shafts and has a material-carrying portion and a rotating portion arranged at intervals in the vertical direction. The material-carrying portion moves in the conveying direction and the rotating portion moves in the opposite direction to the conveying direction.

[0011] In some embodiments, the pyrolysis furnace includes:

[0012] The furnace body has a furnace cavity, and the furnace body has openings at both ends along the conveying direction, and the openings are connected to the furnace cavity so that the integral conveyor line passes through the furnace body;

[0013] The movable furnace doors are arranged in pairs at each end of the furnace body where the opening is located. The paired movable furnace doors are arranged opposite each other in a direction orthogonal to the conveying direction and can move closer to each other and further apart.

[0014] A rotating furnace door is located at each end of the furnace body where the opening is provided. At least a portion of the rotating furnace door is disposed between the loading section and the rotating section. The rotating furnace door can rotate about a direction orthogonal to the vertical direction and the conveying direction, so that the rotating furnace door can abut between the loading section and the rotating section, and can disengage from the loading section and the rotating section.

[0015] In some embodiments, the paired movable furnace doors are arranged opposite each other in the vertical direction and can move closer and further apart in the vertical direction. When the paired movable furnace doors move to the position where the relative distance is the smallest, the lower end face of the upper movable furnace door abuts against the material loading part, and the upper end face of the lower movable furnace door abuts against the rotating part.

[0016] In some embodiments, both ends of the rotating furnace door along the rotation axis are rotatably connected to the furnace body. The rotating furnace door has an upper end face and a lower end face that are arranged opposite to each other. A first groove is provided in the middle of the upper end face of the rotating furnace door. The first groove is used to embed the material-carrying part. The upper end face is used to abut against the lower end face of the upper movable furnace door. A second groove is provided in the middle of the lower end face of the rotating furnace door. The second groove is used to embed the rotating part. The lower end face of the rotating furnace door is used to abut against the upper end face of the lower movable furnace door.

[0017] In some embodiments, in the paired movable furnace doors, the lower end face of the upper movable furnace door and the upper end face of the lower movable furnace door are each provided with a corresponding sealing gasket.

[0018] The upper and lower surfaces of the rotating furnace door are each provided with a corresponding sealing gasket.

[0019] Both the first groove and the second groove have corresponding sealing gaskets on their groove walls.

[0020] In some embodiments, the pyrolysis furnace further includes:

[0021] A guiding mechanism is provided at each end of the furnace body where the opening is located. The guiding mechanism is connected to the paired movable furnace doors in a one-to-one correspondence to guide the movement of the corresponding movable furnace doors.

[0022] A drive mechanism is provided at each end of the furnace body where the opening is provided, and the drive mechanism is connected to at least one of the paired movable furnace doors to drive the corresponding movable furnace door to move.

[0023] A rotating mechanism is provided inside the integral conveyor line or at each end of the furnace body where the opening is located. The rotating mechanism is connected to the rotating furnace door in a one-to-one correspondence to drive the corresponding rotating furnace door to rotate.

[0024] In some embodiments, the pyrolysis furnace further includes a sealing element, and the inner wall surface of each end of the furnace body with the opening is provided with a guide groove. The guide groove is provided with the guide mechanism, and one end of the movable furnace door connected to the guide mechanism is located in the corresponding guide groove. The groove wall surface of the guide groove is provided with a sealing element, and the sealing element abuts against the end of the movable furnace door located in the guide groove.

[0025] In some embodiments, the integral conveyor line includes a chain conveyor.

[0026] In some embodiments, the furnace cavity of the pyrolysis furnace includes a preheating cavity, a pyrolysis cavity, and a slow cooling cavity arranged sequentially and connected along the conveying direction. The preheating cavity is located on the side of the pyrolysis cavity facing the feeding end, and the slow cooling cavity is located on the other side of the pyrolysis cavity facing the unloading end. The height of the pyrolysis cavity is greater than the height of the preheating cavity and greater than the height of the slow cooling cavity. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a pyrolysis device for photovoltaic modules according to an embodiment of the present invention;

[0028] Figure 2 This is a front sectional view of a pyrolysis apparatus for photovoltaic modules according to an embodiment of the present invention;

[0029] Figure 3 This is a front view of the rotating furnace door in an embodiment of the present invention.

[0030] Figure label:

[0031] 1. Pyrolysis furnace; 11. Furnace body; 111. Preheating chamber; 112. Pyrolysis chamber; 113. Slow cooling chamber; 12. Movable furnace door; 13. Rotating furnace door; 131. First groove; 132. Second groove; 133. Third groove; 14. Radiant tube; 15. Air inlet; 16. Air outlet; 2. Integral conveyor line; 21. Rotating shaft; 22. Bearing part; 221. Material loading part; 222. Rotating part; 23. Tensioning wheel. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] The following is for reference. Figures 1-3 A pyrolysis apparatus for photovoltaic modules is described according to an embodiment of the present invention.

[0034] like Figures 1-3 As shown, the pyrolysis apparatus for photovoltaic modules in this embodiment of the invention includes a pyrolysis furnace 1 and an integrated conveyor line 2.

[0035] The integral conveyor line 2 includes a feeding end, a pyrolysis section and a discharging end arranged sequentially along the conveying direction of the integral conveyor line 2. The pyrolysis section is located inside the pyrolysis furnace 1, while the feeding end and the discharging end are located outside the pyrolysis furnace 1.

[0036] Specifically, such as Figure 1 As shown, the integrated conveyor line 2 extends in the front-to-back direction and passes through the pyrolysis furnace 1. The integrated conveyor line 2 is used to carry photovoltaic modules and move them from front to back, so that the photovoltaic modules pass through the pyrolysis furnace 1 during the conveying process. The front end of the integrated conveyor line 2 is the loading end, located on the front side of the pyrolysis furnace 1, and the rear end of the integrated conveyor line 2 is the unloading end, located on the rear side of the pyrolysis furnace 1. The middle part of the integrated conveyor line 2 is the pyrolysis section, located inside the pyrolysis furnace 1. The photovoltaic modules are placed on the integrated conveyor line 2 from the loading end and then driven to move backward by the integrated conveyor line 2. When they move to the pyrolysis section, they are pyrolyzed inside the pyrolysis furnace 1. After being pyrolyzed, the photovoltaic modules continue to move backward to the outside of the pyrolysis furnace 1 and are removed from the integrated conveyor line 2 at the unloading end. Preferably, a collection bin is provided below the unloading end, and the pyrolyzed photovoltaic modules fall into the collection bin from the unloading end.

[0037] It should be noted that the integrated conveyor line 2 means that the bearing surface for the photovoltaic modules is set continuously from the loading end to the unloading end, and it is not composed of multiple conveyor lines.

[0038] The pyrolysis apparatus of this invention transports photovoltaic modules through an integrated conveyor line and allows the photovoltaic modules to pass through the interior of the pyrolysis furnace for pyrolysis. When the photovoltaic modules are transported on the integrated conveyor line, there are no issues of vibration, movement, or transfer between multiple conveyor lines, thus ensuring the integrity of the glass plate.

[0039] In some embodiments, the integral conveyor line 2 includes a rotating shaft 21 and a carrying section 22. At least two rotating shafts 21 are spaced apart along the conveying direction, with one rotating shaft 21 located at the loading end and the other rotating shaft 21 located at the unloading end. The carrying section 22 surrounds the at least two rotating shafts 21 and has a material-carrying section 221 and a rotating section 222 spaced apart along the vertical direction. The material-carrying section 221 moves along the conveying direction, and the rotating section 222 moves in the opposite direction of the conveying direction.

[0040] like Figure 1 As shown, a rotating shaft 21 is provided at the feeding end and another rotating shaft 21 is provided at the unloading end. The two rotating shafts are arranged at intervals in the front-to-back direction. The pyrolysis furnace 1 is located between the two rotating shafts in the front-to-back direction. The supporting part 22 surrounds the two rotating shafts 21 and forms a loading part 221 and a rotating part 222 arranged at intervals in the up-down direction. Both the loading part 221 and the rotating part 222 extend in the front-to-back direction and pass through the middle of the pyrolysis furnace 1. At least one of the two rotating shafts 21 is the driving member to drive the supporting part 22 to rotate cyclically around the two rotating shafts 21 and to move the loading part 221 in the front-to-back direction to support the photovoltaic module and drive the photovoltaic module to move from the feeding end to the unloading end. The rotating part 222 moves in the back-to-front direction so that after the photovoltaic module is unloaded from the unloading end, it returns to the feeding end so that it can be transformed into the loading part 221 to support the photovoltaic module again.

[0041] It should be noted that the material-carrying part 221 and the rotating part 222 are not fixed sections of the bearing part 22, but change as the bearing part 22 rotates around the two rotating shafts 21. The part that moves above the two rotating shafts 21 is the material-carrying part 221, and the part that moves below the two rotating shafts 21 is the rotating part 222. Any position of the bearing part 22 can serve as the material-carrying part 221 and the rotating part 222 during the cyclic rotation.

[0042] In some embodiments, the integral conveyor line 2 includes a chain conveyor. In other words, the integral conveyor line 2 employs a chain conveyor.

[0043] It is understood that in some other embodiments, the integral conveyor line 2 may also be a belt conveyor. Since the conveyor belt of the belt conveyor needs to pass through the pyrolysis furnace 1, the conveyor belt needs to be made of a high-temperature resistant material.

[0044] In some embodiments, the pyrolysis furnace 1 includes a furnace body 11, a movable furnace door 12, and a rotating furnace door 13. The furnace body 11 has a furnace cavity, and openings are provided at both ends of the furnace body 11 along the conveying direction, all of which communicate with the furnace cavity to allow the integral conveyor line 2 to pass through the furnace body 11. The movable furnace doors 12 are arranged in pairs at each end of the furnace body 11 with an opening, and the paired movable furnace doors 12 are positioned opposite each other in a direction orthogonal to the conveying direction, and can move closer to each other and further apart. The rotating furnace door 13 is located at each end of the furnace body 11 with an opening, and at least a portion of the rotating furnace door 13 is disposed between the loading section 221 and the rotating section 222. The rotating furnace door 13 can rotate about a direction orthogonal to the vertical and conveying directions, so that the rotating furnace door 13 can abut against the loading section 221 and the rotating section 222, and can also disengage from the loading section 221 and the rotating section 222.

[0045] like Figure 1 and Figure 2 As shown, the furnace body 11 has a furnace cavity inside, which extends in the front-to-back direction and has openings at both the front and rear ends of the furnace body 11. The integral conveyor line 2 enters the furnace cavity through the opening at the front end of the furnace body 11 and extends out of the furnace cavity through the opening at the rear end of the furnace body 11.

[0046] The furnace body 11 is provided with a pair of movable furnace doors 12 at both the front and rear ends. There can be one pair of movable furnace doors 12, or two or more pairs of movable furnace doors 12. Preferably, there is one pair of movable furnace doors 12. The paired movable furnace doors 12 can be arranged opposite each other in the vertical direction and can be relatively close or relatively far apart in the vertical direction. They can also be arranged opposite each other in the horizontal direction and can be relatively close or relatively far apart in the horizontal direction.

[0047] Rotary furnace doors 13 are located at each end of the furnace body 11 where an opening is provided. Rotary furnace doors 13 can be provided at both the front and rear ends of the furnace body 11, or two rotary furnace doors 13 arranged at intervals along the front and rear directions can be provided on the integral conveyor line 2. The rotary furnace doors 13 are arranged one-to-one with the openings of the furnace body 11 and are located between several pairs of movable furnace doors 12 at the corresponding end. At least a part of the rotary furnace door 13 is provided between the loading section 221 and the rotating section 222. The rotary furnace door 13 can rotate in the left and right directions relative to the furnace body 11 and the integral conveyor line 2, so that the rotary furnace door 13 can abut against the lower end face of the loading section 221 and the upper end face of the rotating section 222, and can disengage from the loading section 221 and the rotating section 222.

[0048] When the rotating furnace door 13 abuts against the lower end face of the loading section 221 and the upper end face of the rotating section 222, and all the paired movable furnace doors 12 on the same end move to the position with the closest relative distance, the opening on the same end is closed by the rotating furnace door 13, the movable furnace door 12, the loading section 221 and the rotating section 222. When the openings at both ends are closed, the furnace cavity of the furnace body 11 is closed and isolated from the outside world for pyrolysis operation.

[0049] Preferably, the furnace body 11 is provided with an air inlet 15 and an air outlet 16 communicating with the furnace cavity, so that the inert gas required for the pyrolysis operation environment is introduced into the furnace cavity through the air inlet 15, and the original air in the furnace cavity is discharged through the air outlet 16.

[0050] In some embodiments, the paired movable furnace doors 12 are arranged opposite each other in the vertical direction and can move closer and further apart in the vertical direction. When the paired movable furnace doors 12 move to the position where the relative distance is the smallest, the lower end face of the upper movable furnace door 12 abuts against the material loading part 221, and the upper end face of the lower movable furnace door 12 abuts against the rotating part 222.

[0051] like Figure 1 and Figure 2 As shown, the movable furnace doors 12 arranged in pairs at the front end and the movable furnace doors 12 arranged in pairs at the rear end of the furnace body 11 are arranged opposite each other in the vertical direction, and can move closer to each other and further apart in the vertical direction. When the movable furnace doors 12 arranged in pairs move to the position where the relative distance is the smallest, the lower end face of the upper movable furnace door 12 abuts against the upper end face of the material loading part 221, and the upper end face of the lower movable furnace door 12 abuts against the lower end face of the rotating part 222.

[0052] In some embodiments, both ends of the rotating furnace door 13 along the rotation axis are rotatably connected to the furnace body 11. The rotating furnace door 13 has an upper end face and a lower end face that are arranged opposite to each other. A first groove 131 is provided in the middle of the upper end face of the rotating furnace door 13. The first groove 131 is used to embed the material loading part 221. The upper end face is used to abut against the lower end face of the upper movable furnace door 12. A second groove 132 is provided in the middle of the lower end face of the rotating furnace door 13. The second groove 132 is used to embed the rotating part 222. The lower end face of the rotating furnace door 13 is used to abut against the upper end face of the lower movable furnace door 12.

[0053] like Figures 1-3 As shown, the rotating furnace door 13 is a strip extending in the left-right direction. Both the left and right ends of the rotating furnace door 13 have shaft portions that extend in the left-right direction and are rotatably connected to the furnace body 11 in that direction. Preferably, the shaft portions are embedded in the wall surface of the furnace body 11 at the corresponding end in the left-right direction, so that the rotating furnace door 13 can rotate relative to the furnace body 11 in the left-right direction.

[0054] The rotating furnace door 13 is positioned between a pair of movable furnace doors 12 at one end along the vertical direction. When the rotating furnace door 13 is positioned between the material loading section 221 and the rotating section 222, the rotating furnace door 13 has an upper end face and a lower end face that are arranged opposite each other along the vertical direction. During the rotation of the rotating furnace door 13, depending on the rotation angle of the rotating furnace door 13, the upper end face and the lower end face of the rotating furnace door 13 can always be arranged at intervals along the vertical direction, or they can be rotated to a position where they are arranged at intervals along the front and back direction.

[0055] A first groove 131 is provided in the middle of the upper end face of the rotating furnace door 13. The first groove 131 is a strip extending in the left and right direction. The first groove 131 is used to embed the material-carrying part 221. When the material-carrying part 221 is embedded in the first groove 131, the upper end face of the material-carrying part 221 is flush with the upper end face of the rotating furnace door 13. When the upper movable furnace door 12 moves to the lowest position, the upper end face of the material-carrying part 221 and the upper end face of the rotating furnace door 13 simultaneously abut against the lower end face of the upper movable furnace door 12.

[0056] A second groove 132 is provided in the middle of the lower end face of the rotating furnace door 13. The second groove 132 is a strip extending in the left and right direction. The second groove 132 is used to embed the rotating part 222. When the rotating part 222 is embedded in the second groove 132, the lower end face of the rotating part 222 is flush with the lower end face of the rotating furnace door 13. When the lower movable furnace door 12 moves to the uppermost position, the lower end face of the rotating part 222 and the lower end face of the rotating furnace door 13 simultaneously abut against the upper end face of the lower movable furnace door 12.

[0057] This allows the rotating furnace door 13, the movable furnace door 12, the material-carrying section 221, and the rotating section 222 to close the opening at one end. When the corresponding opening needs to be opened, the paired movable furnace doors 12 move away from each other, and the rotating furnace door 13 rotates at a certain angle so that the material-carrying section 221 and the rotating section 222 are both disengaged from the movable furnace door 12 and the rotating furnace door 13. The height of the space between the material-carrying section 221 and the movable furnace door 12 located above is greater than the height of the photovoltaic module.

[0058] Preferably, when closing the opening, the carrier part 22 of the integral conveyor line 2 needs to be paused, and after opening, the carrier part 22 of the integral conveyor line 2 can be resumed to move.

[0059] Preferably, when closing the opening, the rotating furnace door 13 is first driven to rotate to a position abutting between the material loading section 221 and the rotating section 222, and then the movable furnace door 12 is driven to move to the position with the smallest relative distance.

[0060] Preferably, the integral conveyor line 2 also includes a tensioning wheel 23, the outer circumferential surface of which abuts against the bearing portion 22 to keep the bearing portion 22 under tension, preventing the material-carrying portion 221 and the rotating portion 222 from shifting and failing to accurately enter the corresponding first groove 131 and second groove 132. More preferably, the tensioning wheel 23 is mounted on an adjustment mechanism so that it can move up and down under the drive of the adjustment mechanism, thereby adjusting the tension and the tightness of the bearing portion 22.

[0061] Preferably, the bottom surface of the first groove 131 and the second groove 132 is further provided with a third groove 133. In the chain plate conveyor, two adjacent chain plates are connected by a connector. The third groove 133 is used for the connector to be embedded to avoid interference.

[0062] It is understandable that the structure of rotating furnace doors and moving furnace doors is not limited to that of... Figure 2 In some embodiments of the structure shown, the rotating furnace door is located on the integral conveyor line between the material-carrying part and the rotating part, and the dimension of the rotating furnace door in the left-right direction is the same as the dimension of the material-carrying part in the left-right direction. The rotating furnace door is configured as a concave shape with a groove. The groove of the upper rotating furnace door faces downward to be embedded in the upper end of the material-carrying part and the rotating furnace door, and the groove of the lower rotating furnace door faces upward to be embedded in the lower end of the rotating part and the rotating furnace door. When the paired moving furnace doors move to the position where the relative distance is the smallest, the lower end face of the upper rotating furnace door abuts against the upper end face of the lower rotating furnace door.

[0063] In some embodiments, in the paired movable furnace doors 12, the lower end face of the upper movable furnace door 12 and the upper end face of the lower movable furnace door 12 are provided with corresponding sealing gaskets, the upper end face and the lower end face of the rotating furnace door 13 are provided with corresponding sealing gaskets, and the groove wall surfaces of the first groove 131 and the second groove 132 are provided with corresponding sealing gaskets.

[0064] like Figure 2 and Figure 3 As shown, the lower end face of the upper movable furnace door 12 and the upper end face of the lower movable furnace door 12 are both provided with corresponding sealing gaskets. The upper end face and the lower end face of the rotating furnace door 13 are both provided with corresponding sealing gaskets. When the opening is closed, the sealing gasket on the lower end face of the upper movable furnace door 12 abuts against the sealing gasket on the upper end face of the material loading part 221 and the upper end face of the rotating furnace door 13. The sealing gasket on the upper end face of the lower movable furnace door 12 abuts against the sealing gasket on the lower end face of the rotating part 222 and the lower end face of the rotating furnace door 13 to ensure a seal.

[0065] The groove walls of the first groove 131 and the second groove 132 are provided with corresponding sealing gaskets. When the opening is closed, the lower end face and the side end face of the material-carrying part 221 abut against the sealing gasket of the groove wall of the first groove 131, and the upper end face and the side end face of the rotating part 222 abut against the sealing gasket of the groove wall of the second groove 132 to ensure sealing.

[0066] The groove wall of the third groove 133 is also provided with a corresponding sealing gasket to abut against the corresponding connector, thereby ensuring a seal.

[0067] In some embodiments, the pyrolysis furnace 1 further includes a guiding mechanism, a driving mechanism, and a rotating mechanism. The guiding mechanism is located at each end of the furnace body 11 with an opening, and is connected one-to-one with a pair of movable furnace doors 12 to guide the movement of the corresponding movable furnace door 12. The driving mechanism is located at each end of the furnace body 11 with an opening, and is connected to at least one of the paired movable furnace doors 12 to drive the corresponding movable furnace door 12 to move. The rotating mechanism is located within the integral conveyor line 2, or at each end of the furnace body 11 with an opening, and is connected one-to-one with a rotating furnace door 13 to drive the corresponding rotating furnace door 13 to rotate.

[0068] Specifically, the front and rear ends of the furnace body 11 are equipped with guide mechanisms. The guide mechanisms include guide rails on the inner walls of the left and right ends of the furnace body 11. The guide rails extend in the vertical direction. The left and right ends of the movable furnace doors 12, which are arranged in pairs at the same end, are both located on the corresponding guide rails so that they can move in the vertical direction under the guidance of the guide rails.

[0069] The front and rear ends of the furnace body 11 are equipped with corresponding drive mechanisms. The drive mechanism includes a drive component and a first transmission component. The first transmission component connects the movable furnace door 12 at the same end to the drive component. The first transmission component and the drive component can be two components that correspond one-to-one with the movable furnace door 12. Alternatively, a pair of movable furnace doors 12 can be connected to the drive component simultaneously through a first transmission component, thereby driving the movable furnace door 12 to move up and down through the drive component. The drive component is preferably a drive motor. The first transmission component can be a gear set, a chain drive component, or a gear and rack component.

[0070] The furnace body 11 has corresponding rotating mechanisms at both its front and rear ends. Each rotating mechanism includes a rotating component and a second transmission assembly. The second transmission assembly connects the shaft of the rotating furnace door 13 at the same end to the rotating component, driving the rotating furnace door 13 to rotate in a left-right direction. The rotating component is preferably a rotating motor, and the second transmission assembly is preferably a gear set. It is understood that when the rotating furnace door 13 is mounted on the integrated conveyor line 2, the rotating mechanism is also mounted on the integrated conveyor line 2, in which case the second transmission assembly can be a chain drive assembly.

[0071] In some embodiments, the pyrolysis furnace 1 further includes a sealing element. The inner wall surface of each end of the furnace body 11 with an opening is provided with a guide groove. A guide mechanism is provided in the guide groove. One end of the movable furnace door 12 connected to the guide mechanism is located in the corresponding guide groove. The groove wall surface of the guide groove is provided with a sealing element, and the sealing element abuts against the end of the movable furnace door 12 located in the guide groove.

[0072] Specifically, the furnace body 11 has two guide grooves at both the front and rear ends. One guide groove is located on the inner wall of the left end of the furnace body 11, and the other guide groove is located on the inner wall of the right end of the furnace body 11. The guide grooves extend in the vertical direction, and guide rails are correspondingly located in the guide grooves, preferably on the bottom surface of the guide grooves. The end of the movable furnace door 12 connected to the guide rails is also located in the corresponding guide groove. The front and rear walls of the guide grooves are provided with sealing elements. The sealing elements abut against the end face of the movable furnace door 12 in the guide groove to ensure sealing and prevent leakage of inert gas in the furnace cavity during pyrolysis operations, ensuring that the atmosphere in the furnace cavity meets the requirements of pyrolysis operations.

[0073] In some embodiments, the furnace cavity of the pyrolysis furnace 1 includes a preheating cavity 111, a pyrolysis cavity 112, and a slow cooling cavity 113 arranged sequentially and connected along the conveying direction. The preheating cavity 111 is located on the side of the pyrolysis cavity 112 facing the feeding end, and the slow cooling cavity 113 is located on the other side of the pyrolysis cavity 112 facing the unloading end. The height of the pyrolysis cavity 112 is greater than the height of the preheating cavity 111 and greater than the height of the slow cooling cavity 113.

[0074] like Figure 1 As shown, the furnace cavity of the furnace body 11 is divided into a preheating cavity 111, a pyrolysis cavity 112, and a slow cooling cavity 113, which are connected sequentially from front to back. The front end of the preheating cavity 111 forms an opening in the furnace cavity, and the rear end of the slow cooling cavity 113 forms another opening in the furnace cavity. The chamber heights of the preheating cavity 111 and the slow cooling cavity 113 are preferably the same. The chamber height of the pyrolysis cavity 112 is greater than the chamber heights of the preheating cavity 111 and the slow cooling cavity 113. In other words, the furnace cavity of the furnace body 11 is convex. The pyrolysis cavity 112 is provided with a radiant tube 14 for generating heat. Multiple radiant tubes 14 are arranged at intervals along the front-to-back direction. The radiant tubes 14 are located in the part of the pyrolysis cavity 112 that is higher than the preheating cavity 111 and the slow cooling cavity 113. Therefore, the temperature of the preheating cavity 111 and the slow cooling cavity 113 is lower than the temperature of the pyrolysis cavity 112.

[0075] Driven by the integrated conveyor line 2, the photovoltaic module first enters the preheating chamber 111 to be heated by residual heat, then enters the pyrolysis chamber 112 to be pyrolyzed at high temperature, then enters the slow cooling chamber 113 to be cooled slowly, and finally is carried out of the furnace to avoid the glass plate from breaking due to rapid temperature changes.

[0076] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0077] Furthermore, the terms "first" and "second" are used only for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A pyrolysis device for a photovoltaic assembly, characterized in that, include: Pyrolysis furnace (1); An integral conveyor line (2) includes a feeding end, a pyrolysis section and a discharging end arranged sequentially along the conveying direction of the integral conveyor line (2). The pyrolysis section is located inside the pyrolysis furnace (1), and the feeding end and the discharging end are located outside the pyrolysis furnace (1). The integrated conveyor line (2) includes: Rotary shaft (21), wherein at least two rotating shafts (21) are arranged at intervals along the conveying direction, wherein one of the rotating shafts (21) is located at the loading end, and the other of the rotating shafts (21) is located at the unloading end; The support part (22) is surrounded on at least two of the rotating shafts (21) and has a material-carrying part (221) and a rotating part (222) arranged at intervals in the vertical direction. The material-carrying part (221) moves in the conveying direction and the rotating part (222) moves in the opposite direction of the conveying direction. The pyrolysis furnace (1) includes: The furnace body (11) is provided with a furnace cavity. Both ends of the furnace body (11) along the conveying direction are provided with openings, and the openings are connected to the furnace cavity so that the integral conveying line (2) passes through the furnace body (11). Movable furnace doors (12) are arranged in pairs at each end of the furnace body (11) where the opening is provided. The paired movable furnace doors (12) are arranged opposite each other in a direction orthogonal to the conveying direction and can be relatively close to each other and relatively far apart. A rotating furnace door (13) is located at each end of the furnace body (11) where the opening is provided. At least a portion of the rotating furnace door (13) is disposed between the loading section (221) and the rotating section (222). The rotating furnace door (13) can rotate about a direction orthogonal to the vertical direction and the conveying direction, so that the rotating furnace door (13) can abut between the loading section (221) and the rotating section (222), and can disengage from the loading section (221) and the rotating section (222). When the rotating furnace door (13) abuts between the lower end face of the loading part (221) and the upper end face of the rotating part (222), and all the paired movable furnace doors (12) on the same end move to the closest relative position, the opening on the same end is closed by the rotating furnace door (13), the movable furnace door (12), the loading part (221) and the rotating part (222). When the openings at both ends are closed, the furnace cavity of the furnace body (11) is closed and isolated from the outside world for pyrolysis operation.

2. The pyrolysis apparatus for photovoltaic modules according to claim 1, characterized in that, The paired movable furnace doors (12) are arranged opposite each other in the vertical direction and can move closer and further apart in the vertical direction. When the paired movable furnace doors (12) move to the position with the smallest relative distance, the lower end face of the upper movable furnace door (12) abuts against the material loading part (221), and the upper end face of the lower movable furnace door (12) abuts against the rotating part (222).

3. The pyrolysis apparatus for photovoltaic modules according to claim 2, characterized in that, The rotating furnace door (13) is rotatably connected to the furnace body (11) at both ends along the rotation axis. The rotating furnace door (13) has an upper end face and a lower end face that are arranged opposite to each other. The upper end face of the rotating furnace door (13) is provided with a first groove (131) in the middle. The first groove (131) is used to embed the material-carrying part (221). The upper end face is used to abut against the lower end face of the moving furnace door (12) located above. The lower end face of the rotating furnace door (13) is provided with a second groove (132) in the middle. The second groove (132) is used to embed the rotating part (222). The lower end face of the rotating furnace door (13) is used to abut against the upper end face of the moving furnace door (12) located below.

4. The pyrolysis apparatus for photovoltaic modules according to claim 3, characterized in that, In the paired movable furnace doors (12), the lower end face of the upper movable furnace door (12) and the upper end face of the lower movable furnace door (12) are both provided with corresponding sealing gaskets. The upper and lower surfaces of the rotating furnace door (13) are each provided with a corresponding sealing gasket. The groove walls of the first groove (131) and the second groove (132) are provided with corresponding sealing gaskets.

5. The pyrolysis apparatus for photovoltaic modules according to claim 1, characterized in that, The pyrolysis furnace (1) also includes: A guiding mechanism is provided at each end of the furnace body (11) where the opening is provided. The guiding mechanism is connected one-to-one with the paired movable furnace doors (12) to guide the corresponding movable furnace doors (12) to move. A drive mechanism is provided at each end of the furnace body (11) where the opening is provided, and the drive mechanism is connected to at least one of the paired movable furnace doors (12) to drive the corresponding movable furnace door (12) to move. A rotating mechanism is provided inside the integral conveyor line (2) or at each end of the furnace body (11) where the opening is provided. The rotating mechanism is connected to the rotating furnace door (13) in a one-to-one correspondence to drive the corresponding rotating furnace door (13) to rotate.

6. The pyrolysis apparatus for photovoltaic modules according to claim 5, characterized in that, The pyrolysis furnace (1) also includes a sealing element. The inner wall surface of each end of the furnace body (11) with the opening is provided with a guide groove. The guide mechanism is provided in the guide groove. One end of the movable furnace door (12) connected to the guide mechanism is located in the corresponding guide groove. The groove wall surface of the guide groove is provided with a sealing element. The sealing element abuts against the end of the movable furnace door (12) located in the guide groove.

7. The pyrolysis apparatus for photovoltaic modules according to claim 1, characterized in that, The integrated conveyor line (2) includes a chain conveyor.

8. The pyrolysis apparatus for photovoltaic modules according to claim 1, characterized in that, The furnace cavity of the pyrolysis furnace (1) includes a preheating cavity (111), a pyrolysis cavity (112), and a slow cooling cavity (113) arranged sequentially and connected along the conveying direction. The preheating cavity (111) is located on the side of the pyrolysis cavity (112) facing the feeding end, and the slow cooling cavity (113) is located on the other side of the pyrolysis cavity (112) facing the unloading end. The height of the pyrolysis cavity (112) is greater than the height of the preheating cavity (111) and greater than the height of the slow cooling cavity (113).

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