Laminated part recovery equipment

Abstract

The utility model discloses laminated piece recovery equipment, which comprises a heating ultraviolet device, a heating ultraviolet device, a heating ultraviolet device, a heating ultraviolet device and a heating ultraviolet device, and is characterized in that the heating ultraviolet device is used for heating and ultraviolet-irradiating laminated pieces to be recovered; the cutting device is used for cutting the to-be-recycled laminated piece subjected to heating and ultraviolet irradiation so as to cut out a glue film and glass in the to-be-recycled laminated piece; and the middle transmission device is positioned between the heating ultraviolet device and the cutting device and is used for transmitting the to-be-recycled laminated piece. According to the embodiment of the utility model, the adhesive film in the to-be-recycled laminated piece is aged by adopting two modes of heating and ultraviolet radiation, so that the disassembly efficiency of the to-be-recycled laminated piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a recycling device for laminated parts in a photovoltaic assembly. Background Art

[0002] Photovoltaic modules need to be recycled after they become invalid and scrapped. During recycling, the frames and junction boxes are usually removed first, and then the laminated components are disassembled.

[0003] At present, the disassembly of laminates usually adopts physical destruction, chemical dissolution and pyrolysis. In the pyrolysis method, the laminates are heated at high temperature to decompose the adhesive film in the laminates. After the adhesive film is decomposed, the glass, battery cells and backplane in the laminates can be separated.

[0004] However, the above-mentioned pyrolysis method requires heating to a relatively high temperature and a relatively long heating time to decompose the adhesive film in the laminate, and the efficiency of disassembling the laminate is relatively low. Utility Model Content

[0005] The utility model provides a laminated component recycling device, aiming at least to solve the technical problem of low efficiency of laminated component disassembly in the prior art.

[0006] The utility model provides a laminate recycling device, comprising:

[0007] A heating UV device, used for heating and UV irradiating the laminate to be recycled;

[0008] A splitting device, used for splitting the laminate to be recycled after heating and ultraviolet irradiation to separate the adhesive film and glass in the laminate to be recycled;

[0009] An intermediate transmission device is located between the heating ultraviolet device and the dividing device, and the intermediate transmission device is used to transmit the laminate to be recycled.

[0010] Optionally, the dividing device comprises a dividing knife, and the blade arrangement direction of the dividing knife is parallel to the transmission plane of the intermediate transmission device.

[0011] Optionally, the heating ultraviolet device includes a box, a heater, and an ultraviolet irradiator, the heater includes at least one electric thermal resistance wire, the ultraviolet irradiator includes at least one ultraviolet lamp, and the extension direction of the electric thermal resistance wire is perpendicular to the extension direction of the ultraviolet lamp.

[0012] Optionally, at least one layer of hollow support frame is provided in the box body, and the support frame is used to support the laminated part to be recycled;

[0013] The support frame divides the box into an upper chamber and a lower chamber, the heater is arranged in the upper chamber and / or in the lower chamber, and the ultraviolet irradiator is arranged in the lower chamber and / or in the upper chamber.

[0014] Optionally, the blade of the dividing knife is a blunt blade.

[0015] Optionally, a limiting drive device is provided on the intermediate transmission device, the spacing between the limiting drive device and the dividing device is smaller than the one-dimensional size of the laminate to be recycled, the limiting drive device comprises an upper drive roller and a lower roller, and during the process of the intermediate transmission device transmitting the laminate to be recycled, the laminate to be recycled is limited between the upper drive roller and the lower roller.

[0016] Optionally, the dividing device further comprises a knife seat and a sliding module arranged on the knife seat, the dividing knife is connected to the sliding module, and the sliding module is used to drive the dividing knife to slide along the height direction of the laminate recovery device.

[0017] Optionally, the segmentation knife is connected to the sliding module via a connecting rod, and the connecting rod has an extension rod extending along the height direction of the laminate recovery device.

[0018] Optionally, a first displacement sensor is provided on the knife seat, and the first displacement sensor is used to measure the height of the blade of the dividing knife.

[0019] Optionally, a collecting box is further included, and the collecting box is located below the intermediate transmission device or the dividing device.

[0020] Optionally, temperature sensors are provided in both the upper chamber and the lower chamber.

[0021] In the embodiment of the utility model, when disassembling the laminated parts to be recycled, the adhesive film in the laminated parts to be recycled is first aged rapidly by heating and ultraviolet irradiation, and then the adhesive film and glass in the laminated parts to be recycled are separated by a separation device, thereby obtaining a complete piece of glass. In the embodiment of the utility model, when disassembling the laminated parts to be recycled, it is not necessary to completely decompose the adhesive film, and heating and ultraviolet irradiation are used simultaneously to age the adhesive film in the laminated parts to be recycled, thereby shortening the time for disassembling the laminated parts to be recycled and improving the efficiency of disassembling the laminated parts to be recycled.

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a laminate recovery device provided by an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the structure of a segmentation device provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the top view of the laminate recovery device provided by an embodiment of the utility model;

[0026] Figure 4 A front view structural schematic diagram of a laminate recovery device provided by an embodiment of the utility model;

[0027] Figure 5 A schematic side view of the structure of a laminate recovery device provided by an embodiment of the utility model;

[0028] Figure 6 Schematic diagram of the recycling process of laminates from waste photovoltaic modules.

[0029] Reference numerals:

[0030] 1-feeding transmission device, 11-second transmission roller, 111-second driving roller, 112-second driven roller, 2-heating ultraviolet device, 21-box, 211-upper chamber, 212-lower chamber, 22-support frame, 23-electric heating resistance wire, 24-ultraviolet lamp, 25-temperature sensor, 3-intermediate transmission device, 31-first transmission roller, 311-first driving roller, 312-first driven roller, 32-frame, 4-limiting driving device, 41-upper driving roller, 42-lower roller, 5-dividing device, 51-dividing knife, 511-dividing blade, 52-sliding module, 53-knife seat, 54-connecting rod, 541-extension rod, 6-glass discharging transmission device, 61-third transmission roller, 7-glass cleaning tank, 8-collecting box, 9-loading platform. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0032] Reference Figure 1 and Figure 2The utility model embodiment discloses a laminate recycling device, comprising: a heating ultraviolet device 2, used to heat and ultraviolet-irradiate the laminate to be recycled; a splitting device 5, used to split the laminate to be recycled after heating and ultraviolet irradiation to split out the adhesive film and glass in the laminate to be recycled; an intermediate transmission device 3 located between the heating ultraviolet device 2 and the splitting device 5, and the intermediate transmission device 3 is used to transmit the laminate to be recycled.

[0033] It should be noted that the photovoltaic module includes a laminate, a frame and a junction box, and the laminate includes front glass, an upper encapsulation film, a battery string group, a lower encapsulation film, a back plate or a back glass stacked in sequence. The battery string group includes a plurality of battery strings, and the battery string includes a plurality of battery cells connected by welding strips. The upper encapsulation film and the lower encapsulation film are usually made of EVA (ethylene-vinyl acetate copolymer) film, and the material of the EVA film is EVA. The function of the film in the laminate is mainly to firmly bond the glass, battery cells and the back plate together.

[0034] The heating ultraviolet device 2 may include a heater and an ultraviolet irradiator, and the heater is used to heat the heating ultraviolet device 2 to increase the temperature inside the heating ultraviolet device 2. The ultraviolet irradiator is used to irradiate the laminate to be recycled with ultraviolet light. During recycling, the frame and junction box in the waste photovoltaic module are first removed to obtain a separate laminate to be recycled, and then the laminate to be recycled is heated and irradiated with ultraviolet light. Ultraviolet irradiation and high temperature environment can change the three-dimensional network of EVA in the laminate to be recycled, causing it to age rapidly.

[0035] The splitting device 5 includes a splitting knife 51. During the splitting process, the blade of the splitting knife 51 is parallel to the glass, and the blade of the splitting knife 51 is in contact with the surface of the glass close to the film. The glass split by the splitting knife 51 includes the front glass and the back glass. The splitting knife 51 is a long strip-shaped blade, and the material of the splitting knife 51 is metal. The blade arrangement direction of the splitting knife 51 is parallel to the transmission plane of the intermediate transmission device 3. The transmission direction of the intermediate transmission device 3 can be referred to Figure 1 It should be noted that the transmission plane of the intermediate transmission device 3 is the plane where the transmission direction is located. Figure 1 For example, the transmission plane of the intermediate transmission device 3 is a horizontal plane.

[0036] In the embodiment of the utility model, when disassembling the laminate to be recycled, the adhesive film in the laminate to be recycled is first aged rapidly by heating and ultraviolet irradiation, and then the adhesive film and glass in the laminate to be recycled are separated by the separation device 5, so as to obtain a complete piece of glass. In the embodiment of the utility model, when disassembling the laminate to be recycled, it is not necessary to completely decompose the adhesive film, and heating and ultraviolet irradiation are used at the same time to age the adhesive film in the laminate to be recycled, which shortens the time of disassembling the laminate to be recycled and improves the efficiency of disassembling the laminate to be recycled.

[0037] There is also a hot knife cutting method currently. The hot knife can be heated by a heating wire, but the heating wire is difficult to replace or maintain. The dividing knife 51 provided by the utility model is easy to maintain and has a low cost.

[0038] Reference Figure 1 , Figure 3 and Figure 4 The heating ultraviolet device 2 includes a box 21, a heater, and an ultraviolet irradiator. The heater includes at least one electric thermal resistance wire 23, and the ultraviolet irradiator includes at least one ultraviolet lamp 24. The extension direction of the electric thermal resistance wire 23 is perpendicular to the extension direction of the ultraviolet lamp 24.

[0039] Preferably, the heater specifically includes a plurality of spaced-apart electric thermal resistance wires 23, and the ultraviolet irradiator specifically includes a plurality of spaced-apart ultraviolet lamp tubes 24. The plurality of ultraviolet lamp tubes 24 can be arranged at equal intervals, and the plurality of electric thermal resistance wires 23 can be arranged at equal intervals. The number of electric thermal resistance wires 23 can be set according to actual needs, such as being set to be greater than or equal to 3. The number of ultraviolet lamp tubes 24 can be set according to actual needs, such as being set to be greater than or equal to 3. Figure 3 When the extension direction of the electric heating resistance wire 23 is perpendicular to the extension direction of the ultraviolet lamp tube 24, the multiple electric heating resistance wires 23 and the multiple ultraviolet lamp tubes 24 form a grid structure when viewed from above. Along one direction, the multiple electric heating resistance wires 23 can heat the laminate to be recycled, and along another direction perpendicular to the direction, the multiple ultraviolet lamp tubes 24 can irradiate the laminate to be recycled with ultraviolet light, thereby making the heating and ultraviolet irradiation of the laminate to be recycled uniform, thereby ensuring the aging effect of the adhesive film in the laminate to be recycled.

[0040] At least one hollow support frame 22 is arranged in the box body 21, and the support frame 22 is used to support the laminate to be recycled; the support frame 22 divides the box body into an upper chamber 211 and a lower chamber 212, the heater is arranged in the upper chamber 211 and / or the lower chamber 212, and the ultraviolet irradiator is arranged in the lower chamber 212 and / or the upper chamber 211.

[0041] Specifically, the support frame 22 is located in the middle of the heating ultraviolet device 2. The support frame 22 can be set as a single layer or a multi-layer, and when it is a multi-layer, it can achieve simultaneous aging of multiple laminates to be recycled. The support frame 22 is hollowed out to ensure that the ultraviolet light emitted by the ultraviolet irradiator can fully irradiate the laminates to be recycled on the support frame 22, thereby improving the efficiency of film aging.

[0042] Reference Figure 1In one embodiment, the heater is disposed on the top wall of the upper chamber 211, and the UV irradiator is disposed on the bottom wall of the lower chamber 212. In another embodiment, the heater is disposed on the side wall of the upper chamber 211 and the side wall of the lower chamber 212, and the UV irradiator is disposed on the top wall of the upper chamber 211 and the bottom wall of the lower chamber 212. In yet another embodiment, the UV irradiator is disposed on the top wall of the upper chamber 211, and the heater is disposed on the bottom wall of the lower chamber 212.

[0043] For a single glass assembly including front glass and back plate, the UV irradiator is preferably arranged to be aligned with the back plate of the laminate to be recycled on the support frame 22. At this time, the back plate will not affect the absorption of UV light. When the heating UV device 2 includes the support frame 22, after the film in the laminate to be recycled in the heating UV device 2 is aged, the laminate to be recycled can be manually pushed onto the intermediate transmission device 3.

[0044] In other embodiments, a roller-type transmission device may be used instead of the support frame 22, so that the aged laminate to be recycled can be automatically transmitted to the intermediate transmission device 3. The roller-type transmission device includes a plurality of transmission rollers arranged at intervals, and the interval between two adjacent transmission rollers is wide. Therefore, the roller-type transmission device can use fewer transmission rollers, such as two transmission rollers, to avoid the transmission rollers affecting the ultraviolet irradiation effect. The material of the transmission roller is a high-temperature resistant metal material.

[0045] The blade of the splitting knife 51 is a blunt blade. Specifically, when the blade of the splitting knife 51 is a blunt blade, it is not easy to damage the glass, and it is highly safe and will not threaten the safety of the operator, so that the film and glass of the laminate to be recycled can be separated safely and effectively.

[0046] Reference Figure 1 , Figure 3 and Figure 4 , a limited driving device 4 is arranged on the intermediate transmission device 3, the spacing between the limited driving device 4 and the dividing device 5 is smaller than the one-dimensional size of the laminate to be recycled, the limited driving device 4 comprises an upper driving roller 41 and a lower roller 42, and during the intermediate transmission device 3 transmitting the laminate to be recycled, the laminate to be recycled is limited between the upper driving roller 41 and the lower roller 42. It should be noted that the one-dimensional size of the laminate to be recycled refers to the length or width of the laminate to be recycled.

[0047] Specifically, the intermediate transmission device 3 includes a frame 32, and the limit drive device 4 is arranged on the frame 32. The upper drive roller 41 and the lower roller 42 are spaced apart along the height direction of the laminate recycling device. The height direction of the laminate recycling device can be referred to as Figure 1The lower roller 42 can be a driven roller, and the upper driving roller 41 is connected to a driving motor. The upper driving roller 41 and the lower roller 42 also drive the laminate to be recycled to move toward the segmentation device 5.

[0048] After the aging of the adhesive film in the laminate to be recycled in the heating ultraviolet device 2 is completed, the first box door can be opened, and the laminate to be recycled can be manually pushed onto the intermediate transmission device 3. The intermediate transmission device 3 transmits the laminate to be recycled to the splitting device 5. During this process, the limit drive device 4 will also apply a certain traction force to the laminate to be recycled, so as to cooperate with the intermediate transmission device 3 to transmit the laminate to be recycled. The limit drive device 4 is also used to limit the position of the laminate to be recycled, and the distance between the limit drive device 4 and the splitting device 5 is smaller than the one-dimensional size of the laminate to be recycled. During the splitting, along the direction indicated by the arrow A, one end of the laminate to be recycled is limited and transmitted by the limit drive device 4, and the other end of the laminate to be recycled abuts the splitting device 5 to ensure that the laminate to be recycled maintains a stable position along its thickness direction when the splitting knife 51 splits, thereby ensuring the accuracy of the splitting.

[0049] The laminate recycling device also includes a feed conveyor 1, and a heating UV device 2 is located between the feed conveyor 1 and the intermediate conveyor 3. The feed conveyor 1 is used to convey the laminate to be recycled into the heating UV device 2. The feed conveyor 1 includes a plurality of second conveyor rollers 11 arranged at intervals, and the plurality of second conveyor rollers 11 may include a plurality of second driving rollers 111 and a plurality of second driven rollers 112. A loading platform 9 is also provided on the side of the feed conveyor 1 away from the heating UV device 2, and the loading platform 9 is used to store a plurality of laminates to be recycled.

[0050] Reference Figure 2 and Figure 5 The dividing device 5 also includes a knife seat 53 and a sliding module 52 arranged on the knife seat 53, the dividing knife 51 is connected to the sliding module 52, and the sliding module 52 is used to drive the dividing knife 51 to slide along the height direction of the laminate recovery device.

[0051] Specifically, when the intermediate transmission device 3 transmits the laminate to be recycled, the height direction of the laminate recycling device is consistent with the thickness direction of the laminate to be recycled. The sliding module 52 is arranged on both sides of the knife seat 53. The sliding module 52 can drive the segmentation knife 51 to slide along the height direction of the laminate recycling device, thereby adjusting the upper and lower positions of the segmentation knife 51 to adapt to different types of laminates to be recycled. Specifically, the height of the surface of the glass close to the film in different types of laminates to be recycled is different. The upper and lower positions of the segmentation knife 51 can be adjusted by sliding, which facilitates the segmentation of different types of laminates to be recycled.

[0052] The splitting knife 51 includes at least two splitting blades 511, and at least two splitting blades 511 are spaced apart along the length direction of the knife holder 53, and the splitting blades 511 are connected to the sliding module 52 through the connecting rod 54. In one embodiment, the splitting blade 511 is connected to the connecting rod 54, and the connecting rod 54 has an extension rod 541 extending along the height direction of the laminate recycling device, and the two ends of the connecting rod 54 are respectively connected to the sliding module 52. Optionally, the splitting blade 511 is located below the connecting rod 54. Taking a single-glass laminate as an example, the glass layer of the single-glass laminate is placed downward on the intermediate transmission device 3, and the back plate layer of the single-glass laminate is upward. The upper and lower positions of the splitting knife 51 are adjusted to the height of the surface of the glass close to the film. When splitting the laminate, the glass continues to move forward after being split, and the residual material is blocked by the extension rod 541 of the connecting rod 54, and falls into the collection box 8 or is collected manually. The length direction of the knife holder 53 is consistent with the width direction of the laminate recycling device. It should be noted that for single-glass laminates, the remaining material refers to the battery and backplane encapsulated by the film. For double-glass laminates, the remaining material refers to the battery and the glass on the back of the film. After the remaining material is recycled, it can be split again to recycle the glass on the back.

[0053] The knife seat 53 is provided with a first displacement sensor and a second displacement sensor. The first displacement sensor is used to measure the height of the blade of the splitting knife 51, and the second displacement sensor is used to measure the height of the surface of the glass close to the film. The first displacement sensor can measure the height of the blade of the splitting knife 51 relative to the first displacement sensor, and the second displacement sensor can measure the height of the surface of the glass close to the film relative to the second displacement sensor. The height difference between the blade of the splitting knife 51 and the surface of the glass close to the film can be monitored in real time through the first displacement sensor and the second displacement sensor.

[0054] The laminate recycling device also includes a digital display controller, which can be used to adjust the power of the ultraviolet lamp 24, adjust the target temperature of the electric heating resistor 23, and control the start and stop of the intermediate transmission device 3, the feeding transmission device 1 and the glass discharging transmission device 6. The first displacement sensor and the second displacement sensor can be electrically connected to the digital display controller, and the digital display controller is electrically connected to the sliding module 52, so that the upper and lower positions of the segmentation knife 51 can be automatically adjusted according to the height difference between the blade of the segmentation knife 51 and the surface of the glass close to the film, so that the blade of the segmentation knife 51 can be in contact with the surface of the glass close to the film.

[0055] Reference Figure 1 , Figure 3 and Figure 4 The laminate recycling device provided in the embodiment of the utility model further includes a collecting box 8 , and the collecting box 8 is located below the intermediate transmission device 3 or the dividing device 5 .

[0056] Specifically, the plurality of first transmission rollers 31 are all rotatably connected to the frame 32 , and the plurality of first transmission rollers 31 may include a plurality of first driving rollers 311 and a plurality of first driven rollers 312 , and the first driving rollers 311 are directly connected to the driving motor.

[0057] Reference Figure 1 , Figure 3 and Figure 4 The laminate recycling device provided in the embodiment of the utility model further includes a glass discharging transmission device 6, which is located on the side of the splitting device 5 away from the intermediate transmission device 3, and is used to transmit the split glass. Specifically, the glass discharging transmission device 6 includes a plurality of third transmission rollers 61, and the plurality of third transmission rollers 61 may include a plurality of third driving rollers and a plurality of third driven rollers. The split glass can be transmitted to a suitable position through the glass discharging transmission device 6. Figure 3 and Figure 4 In the embodiment, the roller filled with black among the plurality of third transmission rollers 61 is a third driving roller, and the roller not filled with black is a third driven roller. Figure 3 and Figure 4 The plurality of third transmission rollers 61 may include one third driving roller and three third driven rollers.

[0058] Reference Figure 1 , Figure 3 and Figure 4 The laminate recycling device provided in the embodiment of the utility model further comprises a glass cleaning tank 7, which is located on a side of the glass discharging and conveying device 6 away from the dividing device 5, and the glass cleaning tank 7 contains a debonding solvent.

[0059] Specifically, the debonding solvent is used to dissolve the EVA remaining on the glass, and the debonding solvent can be an organic or inorganic solvent, such as tetrahydrofuran, o-dichlorobenzene and toluene. After the glass is cleaned with the debonding solvent in the glass cleaning tank 7, it is necessary to wash it with water. In the embodiment of the utility model, the residual adhesive film on the glass can be cleaned by setting the glass cleaning tank 7.

[0060] Reference Figure 4 The upper chamber 211 and the lower chamber 212 are both provided with temperature sensors 25. Specifically, the temperature sensors 25 monitor the temperature of the upper chamber 211 and the lower chamber 212. When the temperature of the chamber where the ultraviolet lamp 24 is located is higher than 500°C or lower than 50°C, an alarm can be sounded through the alarm. By providing the temperature sensors 25, the temperature of the upper chamber 211 and the lower chamber 212 can be monitored in real time to avoid damage to the ultraviolet lamp 24 due to excessively high chamber temperatures.

[0061] The box body 21 is provided with a first box door close to the intermediate transmission device 3, and the box body is also provided with a second box door opposite to the first box door.

[0062] Specifically, when the first door is opened, the laminate to be recycled in the heating UV device 2 can be sent to the intermediate transmission device 3. The second door is close to the feeding transmission device 1. When the second door is opened, the laminate to be recycled transmitted by the feeding transmission device 1 can enter the heating UV device 2. When the laminate to be recycled is heated and irradiated with UV in the heating UV device 2, the first door and the second door are closed to seal the box 21, thereby ensuring the aging effect on the adhesive film.

[0063] Reference Figure 6 , the recycling process of laminates in waste photovoltaic modules is as follows:

[0064] S1: Mechanically disassemble the waste photovoltaic modules to separate the aluminum frame, junction box and laminate.

[0065] S2: The laminate separated in S1) is subjected to heating and UV aging treatment.

[0066] S3: The laminated member after aging treatment in S2) is divided by a dividing knife to obtain a whole piece of glass and film-encapsulated battery, and the film-encapsulated battery is referred to as a package.

[0067] S4: Carry out medium temperature (300° C.-600° C.) carbonization treatment on the package in S3).

[0068] S5: After the medium-temperature carbonization treatment, the package is subjected to a solder stripping treatment by a solder stripping system to obtain solder strips, battery cells and carbon materials.

[0069] S6: The solder strip obtained in S5) is treated by an acid treatment system, wherein the acid in the acid treatment system can be dilute hydrochloric acid, dilute sulfuric acid, dilute nitric acid, etc.

[0070] S7: S6) After the solder strip is treated by the acid treatment system, the tin coating layer on the surface is removed, and then it is washed with water to obtain a pure copper strip.

[0071] S8: S6) After the solder strip is treated by the acid treatment system, the tin coating layer on the surface dissolves in the acid solution to form a tin-containing solution; the tin-containing solution is subjected to a reduction treatment to obtain pure tin powder, wherein the reducing agent used in the reduction treatment can be a metal whose metal activity is higher than that of tin, or a liquid reducing agent such as hydrogen peroxide, sodium borohydride and hydrazine hydrate reducing agents.

[0072] S9: The mixed waste of battery cells and carbon materials obtained in S5) is subjected to wet chemical treatment by a wet treatment system to obtain an aluminum-containing solution, a silver-containing solution and residual materials, respectively.

[0073] S10: The aluminum-containing solution obtained in S9) is directly subjected to heating and evaporation treatment to obtain residual powder, which is then repeatedly washed with water to obtain aluminum oxide powder.

[0074] S11: The silver-containing solution obtained in S9) is directly reduced to obtain silver powder, which is then repeatedly washed with water to obtain silver powder with a purity greater than 95%.

[0075] S12: The remaining material obtained in S9) is mechanically ball-milled into a mixed powder with a mesh size of 500 or more.

[0076] S13: The mixed powder obtained in S12) is screened by a density screening system to obtain silicon mixed powder and carbon powder respectively.

[0077] S14: The silicon mixed powder obtained in S13) is treated with acid to obtain silicon powder, which is repeatedly washed with water to obtain silicon powder with a purity greater than 93%.

[0078] S15: The carbon powder obtained in S13) can be directly used as an active adsorbent.

[0079] For the laminated parts to be recycled with a size of 1120mm×2200mm, when recycling, first, under the transmission of the feed transmission device 1, the laminated parts to be recycled enter the heating ultraviolet device 2, and then close the first door and the second door to form a closed dark space. After that, turn on the switch of the heating ultraviolet device 2, adjust the power of the ultraviolet lamp 24 to the preset power, adjust the target temperature of the electric heating resistance wire 23 to 320℃, and set the duration to 2h. During the heating and ultraviolet irradiation process, the temperature sensor 25 detects the real-time temperature in the upper chamber 211 and the lower chamber 212. After the aging and cooling is completed, open the first door, start the intermediate transmission device 3, and the laminated parts to be recycled after heating and ultraviolet irradiation are transmitted through the intermediate transmission device 3, and are limited by the limit drive device 4 and then conveyed to the splitting device 5, and the film and glass are split by the splitting knife 51. The split glass is transmitted to the glass cleaning tank 7 through the glass discharge transmission device 6.

[0080] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0081] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A laminate recycling device, It is characterized in that include: A heating UV device, used for heating and UV irradiating the laminate to be recycled; A splitting device, used for splitting the laminate to be recycled after heating and ultraviolet irradiation to separate the adhesive film and glass in the laminate to be recycled; An intermediate transmission device is located between the heating ultraviolet device and the dividing device, and the intermediate transmission device is used to transmit the laminate to be recycled.

2. The laminate recycling device according to claim 1, It is characterized in that The dividing device comprises a dividing knife, and the blade arrangement direction of the dividing knife is parallel to the transmission plane of the intermediate transmission device.

3. The laminate recycling apparatus according to claim 1, It is characterized in that The heating ultraviolet device comprises a box, a heater and an ultraviolet irradiator. The heater comprises at least one electric thermal resistance wire. The ultraviolet irradiator comprises at least one ultraviolet lamp. The extension direction of the electric thermal resistance wire is perpendicular to the extension direction of the ultraviolet lamp.

4. The laminate recycling device according to claim 3, It is characterized in that At least one layer of hollow support frame is provided in the box body, and the support frame is used to support the laminated parts to be recycled; The support frame divides the box into an upper chamber and a lower chamber, the heater is arranged in the upper chamber and / or in the lower chamber, and the ultraviolet irradiator is arranged in the lower chamber and / or in the upper chamber.

5. The laminate recycling apparatus according to claim 2, It is characterized in that The blade of the dividing knife is a blunt blade.

6. The laminate recycling apparatus according to any one of claims 1 to 5, It is characterized in that A limiting drive device is provided on the intermediate transmission device, and the distance between the limiting drive device and the dividing device is smaller than the one-dimensional size of the laminate to be recycled. The limiting drive device includes an upper drive roller and a lower roller. During the process of the intermediate transmission device transmitting the laminate to be recycled, the laminate to be recycled is limited between the upper drive roller and the lower roller.

7. The laminate recycling apparatus according to claim 2, It is characterized in that The dividing device also includes a knife seat and a sliding module set on the knife seat, the dividing knife is connected to the sliding module, and the sliding module is used to drive the dividing knife to slide along the height direction of the laminate recovery equipment.

8. The laminate recycling apparatus according to claim 7, It is characterized in that The segmentation knife is connected to the sliding module via a connecting rod, and the connecting rod has an extension rod extending along the height direction of the laminate recovery device.

9. The laminate recycling apparatus according to claim 7, It is characterized in that The knife seat is provided with a first displacement sensor, and the first displacement sensor is used to measure the height of the blade of the dividing knife.

10. The laminate recycling apparatus according to claim 1, It is characterized in that It also includes a collecting box, which is located below the intermediate transmission device or the dividing device.

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