Color sorting equipment for recycled silicon wafers of photovoltaic module

Abstract

The utility model discloses a photovoltaic module recovery silicon wafer color sorting device, which belongs to the technical field of photovoltaic module recovery, and comprises two groups of side baffles, a feed bin and a color sorting instrument, the feed bin is mounted at one end of each side baffle, the color sorting instrument is mounted at the other end of each side baffle, a feeding mechanism is mounted between the two groups of side baffles, and the color sorting instrument is mounted at the other end of each side baffle. The feeding mechanism comprises a driving motor, a rotating shaft and a conveying belt, the feeding mechanism and the leveling mechanism are arranged, continuous shaking of the vibrating screen is not needed, noise generated when the whole device operates is reduced, materials are stably conveyed through movement of the conveying belt, and the pressing plate and the bulldozing assembly are matched, so that the material conveying efficiency is improved. And the materials accumulated on the conveying belt are compressed and leveled, so that the materials uniformly enter the color sorting instrument.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic module recycling technology, specifically relating to a color sorting device for recycling silicon wafers of photovoltaic modules. Background Technology

[0002] Photovoltaic modules mainly consist of a glass backsheet, solar cells, an aluminum alloy frame, EVA adhesive, copper solder strips, and a junction box. The encapsulation glass accounts for 70%, the aluminum frame 18%, the silicon wafers 4%, and the EVA adhesive 5%. It also contains heavy metals such as silver and indium. The silver content is approximately 0.06%, but its recycling value accounts for 47% of the total materials. When recycling photovoltaic modules, they are disassembled, and the silicon wafers are screened by passing them through a color sorter for rapid separation.

[0003] Before screening, silicon wafers are crushed by crushing equipment, and then the crushed material is poured into a color sorter. The operation of the vibrating screen in the color sorter allows the material to be evenly distributed and gradually enter the color sorting instrument, which facilitates the subsequent screening of silicon wafers. However, there are some problems in actual use. Specifically, when the existing vibrating screen is running, the vibration of the vibrating screen itself will generate some noise, pollute the surrounding environment, and affect the overall work quality. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the problems mentioned in the background section, the present invention adopts the following technical solution.

[0006] A photovoltaic module silicon wafer recycling color sorting device includes side baffles, a feeding hopper, and a color sorting instrument. The feeding hopper is installed at one end of the side baffles, and the color sorting instrument is installed at the other end of the side baffles. There are two sets of side baffles, and a feeding mechanism is installed between the two sets of side baffles. The feeding mechanism includes a drive motor, a rotating shaft, and a conveyor belt. The drive motor is installed on the side of one set of side baffles, and the rotating shafts are symmetrically rotated between the side baffles. The output end of the drive motor is connected to one set of rotating shafts, and a conveyor belt is installed on the outside of the rotating shafts to transport the material.

[0007] As a preferred technical solution of this utility model, the feeding mechanism further includes a pusher plate, the pusher plate is equidistantly installed on the upper surface of the conveyor belt, and protective plates are symmetrically installed on the inner wall of the side baffle, the protective plates filling the gap between the conveyor belt and the side baffle.

[0008] As a preferred technical solution of this utility model, it also includes a leveling mechanism, which includes a support frame, a pressing cylinder and a pressing plate. The support frame is installed on the side baffle, and the pressing cylinder is installed on the upper surface of the support frame. The output end of the pressing cylinder passes through the support frame, and the pressing plate is installed at the end of the output end of the pressing cylinder. The pressing plate squeezes the material between the pushing plates.

[0009] As a preferred embodiment of this utility model, the width of the pressing plate is equal to the spacing between each set of push plates, and the length of the pressing plate itself is equal to the width of the conveyor belt.

[0010] As a preferred technical solution of this utility model, the leveling mechanism further includes a supporting base plate, and the supporting base plate is fixedly installed on the side of the side baffle. The upper surface of the supporting base plate is in contact with the bottom end of the conveyor belt, and the supporting base plate is located directly below the pressing plate.

[0011] As a preferred technical solution of this utility model, the leveling mechanism further includes a leveling component, which is installed between the side baffles and on the side of the support frame, with the end of the leveling component fitting against the top of the push plate.

[0012] As a preferred embodiment of this utility model, the leveling assembly consists of a fixing rod and a cleaning plate. The fixing rod is fixedly installed between the side baffles, and the cleaning plate is installed outside the fixing rod, with the cleaning plate being inclined.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention eliminates the need for a vibrating screen to constantly shake, reducing the overall noise during operation. The material is stably conveyed by the movement of the conveyor belt, while the pressing plate and leveling component compress and level the material accumulated on the conveyor belt, allowing the material to enter the color sorter evenly, facilitating the subsequent stable screening of silicon wafers by the color sorter. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model.

[0016] Figure 2 This is a perspective view of the feeding mechanism structure of this utility model.

[0017] Figure 3 This is a three-dimensional view of the leveling mechanism structure of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the side of the supporting base plate and the flattening component in this utility model.

[0019] Figure 5 This is a plan view of the structure of the flattening component of this utility model.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] 1. Side baffle; 2. Feed hopper; 3. Color sorter; 4. Feeding mechanism; 41. Drive motor; 42. Rotating shaft; 43. Conveyor belt; 44. Push plate; 5. Leveling mechanism; 51. Support frame; 52. Pressing cylinder; 53. Pressing plate; 54. Support base plate; 55. Leveling assembly. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0025] like Figure 1 As shown, it is a structural schematic diagram of the photovoltaic module silicon wafer recycling color sorting equipment in this embodiment. The equipment includes a side baffle 1, a feeding bin 2 and a color sorting instrument 3. The feeding bin 2 is installed at one end of the side baffle 1 and the color sorting instrument 3 is installed at the other end of the side baffle 1. There are two sets of side baffles 1, and a feeding mechanism 4 is installed between the two sets of side baffles 1.

[0026] The material to be screened is fed into the feed hopper 2. The material flows along the inner wall of the feed hopper 2 between the side baffles 1. Through the use of the feeding mechanism 4, the material is quietly and stably conveyed, allowing the material to enter the color sorting instrument 3 stably, so that the color sorting instrument 3 can screen the silicon wafers in the material.

[0027] As attached Figure 2As shown, this is a schematic diagram of the feeding mechanism 4 in this embodiment. The feeding mechanism 4 includes a drive motor 41, a rotating shaft 42, and a conveyor belt 43. The drive motor 41 is mounted on the side of a set of side baffles 1. The rotating shafts 42 are symmetrically mounted between the side baffles 1. The output end of the drive motor 41 is connected to one of the rotating shafts 42. The conveyor belt 43 is mounted on the outside of the rotating shaft 42. The conveyor belt 43 conveys the material. Push plates 44 are equidistantly mounted on the upper surface of the conveyor belt 43. Protective plates are symmetrically mounted on the inner wall of the side baffles 1. The protective plates fill the gap between the conveyor belt 43 and the side baffles 1.

[0028] In use, driven by the drive motor 41, the output end of the drive motor 41 drives one of the rotating shafts 42 to rotate. The conveyor belt 43 installed outside the rotating shaft 42 slides against the surface of the rotating shaft 42. At this time, the conveyor belt 43 stably conveys the material that falls on its own surface. With the use of the protective plate, the material is prevented from falling from the gap between the conveyor belt 43 and the side baffle 1, ensuring the stability of the material conveying. The multiple sets of push plates 44 set at equal intervals on the conveyor belt 43 can stably push the material on the surface of the conveyor belt 43, allowing the material to enter the color sorter 3.

[0029] As attached Figure 3 and Figure 4 As shown, this is a schematic diagram of the leveling mechanism 5 in this embodiment. The leveling mechanism 5 includes a support frame 51, a pressing cylinder 52, and a pressing plate 53. The support frame 51 is installed on the side baffle 1. The pressing cylinder 52 is installed on the upper surface of the support frame 51. The output end of the pressing cylinder 52 passes through the support frame 51. The pressing plate 53 is installed at the end of the output end of the pressing cylinder 52. The pressing plate 53 squeezes the material between the push plates 44. The width of the pressing plate 53 is equal to the distance between each set of push plates 44. The length of the pressing plate 53 is equal to the width of the conveyor belt 43. A support base plate 54 is fixedly installed on the side of the side baffle 1. The upper surface of the support base plate 54 is in contact with the bottom end of the conveyor belt 43, and the support base plate 54 is located directly below the pressing plate 53. A leveling component 55 is installed between the side baffles 1 and on the side of the support frame 51. The end of the leveling component 55 is in contact with the top of the push plate 44.

[0030] Once the material reaches the target position, the conveyor belt 43 stops moving. At this time, the pressing cylinder 52 pushes the pressing plate 53 down, causing the material between the pressing plate 53 and the supporting base plate 54 to be squeezed, thus compressing the material accumulated between the push plates 44 and controlling the thickness of the material accumulated between the push plates 44. Afterward, the conveyor belt 43 continues to convey the material. Some material will bounce back due to its elasticity. At this time, the leveling component 55 will push the material that exceeds the height of the push plates 44, leveling the material on the surface of the conveyor belt 43 and making the material evenly distributed on the conveyor belt 43. This facilitates the uniform entry of the material into the color sorter 3 for subsequent testing and screening. The material pushed by the leveling component 55 will enter the space between the push plates 44 below the pressing plate 53, facilitating repeated pressing.

[0031] As attached Figure 5 As shown, the leveling component 55 consists of a fixed rod and a cleaning plate. The fixed rod is fixedly installed between the side baffles 1, and the cleaning plate is installed outside the fixed rod. The cleaning plate is set at an angle. The cleaning plate is set so that it fits against the top of the push plate 44 and pushes the excess material between the push plates 44. The angle of the cleaning plate is set to prevent the material from accumulating on the cleaning plate.

[0032] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A photovoltaic module silicon wafer recycling color sorting device, comprising a side baffle (1), a feeding bin (2), and a color sorting instrument (3), wherein the feeding bin (2) is installed at one end of the side baffle (1), and the color sorting instrument (3) is installed at the other end of the side baffle (1), characterized in that: There are two sets of side baffles (1). A feeding mechanism (4) is installed between the two sets of side baffles (1). The feeding mechanism (4) includes a drive motor (41), a rotating shaft (42) and a conveyor belt (43). A drive motor (41) is installed on the side of one set of side baffles (1). A rotating shaft (42) is symmetrically installed between the side baffles (1). The output end of the drive motor (41) is connected to one set of rotating shafts (42). A conveyor belt (43) is installed on the outside of the rotating shaft (42). The conveyor belt (43) conveys the material.

2. The photovoltaic module silicon wafer recycling color sorting equipment according to claim 1, characterized in that: The feeding mechanism (4) also includes a push plate (44). The push plates (44) are installed at equal intervals on the upper surface of the conveyor belt (43). Protective plates are symmetrically installed on the inner wall of the side baffle (1). The protective plates fill the gap between the conveyor belt (43) and the side baffle (1).

3. The photovoltaic module silicon wafer recycling color sorting equipment according to claim 2, characterized in that: It also includes a leveling mechanism (5), which includes a support frame (51), a pressing cylinder (52) and a pressing plate (53). The support frame (51) is installed on the side baffle (1), and the pressing cylinder (52) is installed on the upper surface of the support frame (51). The output end of the pressing cylinder (52) passes through the support frame (51), and the pressing plate (53) is installed at the end of the output end of the pressing cylinder (52). The pressing plate (53) squeezes the material between the push plates (44).

4. The photovoltaic module silicon wafer recycling color sorting equipment according to claim 3, characterized in that: The width of the pressing plate (53) is equal to the distance between each set of push plates (44), and the length of the pressing plate (53) itself is equal to the width of the conveyor belt (43).

5. The photovoltaic module silicon wafer color sorting equipment according to claim 3, characterized in that: The leveling mechanism (5) also includes a support base plate (54). The support base plate (54) is fixedly installed on the side of the side baffle (1). The upper surface of the support base plate (54) is in contact with the bottom end of the conveyor belt (43), and the support base plate (54) is located directly below the pressing plate (53).

6. The photovoltaic module silicon wafer color sorting equipment according to claim 3, characterized in that: The leveling mechanism (5) also includes a leveling component (55), which is installed between the side baffles (1) and on the side of the support frame (51). The end of the leveling component (55) is attached to the top of the push plate (44).

7. The photovoltaic module silicon wafer color sorting equipment according to claim 6, characterized in that: The leveling component (55) consists of a fixed rod and a cleaning plate. The fixed rod is fixedly installed between the side baffles (1), and the cleaning plate is installed outside the fixed rod and is inclined.

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