Recycling Device for Solar Power Generation Equipment and Recycling Method for Solar Power Generation Equipment

Abstract

To provide a recycling apparatus of photovoltaic facilities, which can inhibit the breakage of a back sheet, and a recycling method for the photovoltaic facilities.SOLUTION: A plurality of rollers 13 and 14, which convey discarded photovoltaic facilities 8 while destroying them and the peripheral surfaces 11 and 12 of which face each other, are provided. Grooves 15 are formed in an oblique direction with respect to a conveyance direction, on the peripheral surfaces 11 and 12, which destroy the discarded photovoltaic facilities 8, of the peripheral surfaces 11 and 12 of the plurality of rollers 13 and 14. Means for making the discarded photovoltaic facilities 8 pass through clearances among the plurality of rollers 13 and 14 once or more are provided.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a recycling device for solar power generation equipment and a recycling method for solar power generation equipment.

Background Art

[0002] Conventionally, a recycling device for solar power generation equipment using rollers has been proposed. For example, in Patent Document 1, protrusions are provided on the circumferential surface of the upper roller, and the protrusions mainly break the glass part of the waste solar power generation equipment, and the back roller without protrusions is brought into contact with the back protective material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when using a roller with protrusions, the destructive force of the glass is too large, and it is assumed that the back protective material will be torn. Depending on the type of solar power generation equipment, it may be required to break the glass little by little so that a member similar to the back protective material does not break. This is the case for solar power generation equipment in which recycling of rare metals such as rare earth metals is facilitated by preventing a member similar to the back protective material from breaking.

[0005] Therefore, an object of the present invention is to provide a recycling device for solar power generation equipment and a recycling method for solar power generation equipment that can suppress breakage of a member (backsheet) similar to the back protective material.

Means for Solving the Problems

[0006] In order to achieve the above object, the recycling device for solar power generation equipment of the present invention has a plurality of rollers with opposing peripheral surfaces that convey while destroying waste solar power generation equipment. Among the peripheral surfaces of the plurality of rollers, on the peripheral surface that destroys the waste solar power generation equipment, grooves intersecting in an oblique direction with respect to the conveyance direction are formed. The depth and width of the groove and the distance between adjacent grooves are both 0.8 to 1.2 mm, It has means for passing the waste solar power generation equipment through the gap between the plurality of rollers once or a plurality of times. There is no gap between the plurality of rollers, and due to the deflection at the center in the length direction of the plurality of rollers, the waste solar power generation equipment can pass through the gap between the plurality of rollers.

[0007] Here, the dimension of the gap between the plurality of rollers may be 0.2 mm or less.

[0008] In order to achieve the above object, the recycling method for solar power generation equipment of the present invention has a plurality of rollers with opposing peripheral surfaces that convey while destroying waste solar power generation equipment. Among the peripheral surfaces of the plurality of rollers, on the peripheral surface that destroys the waste solar power generation equipment, grooves intersecting in an oblique direction with respect to the conveyance direction are formed. The depth and width of the groove and the distance between adjacent grooves are both 0.8 to 1.2 mm, Pass the waste solar power generation equipment through the gap between the plurality of rollers once or a plurality of times, convey it with the backsheet of the waste solar power generation equipment on the upper surface, eliminate the gap between the plurality of rollers, and due to the deflection at the center in the length direction of the plurality of rollers, the waste solar power generation equipment passes through the gap between the plurality of rollers.

Effect of the Invention

[0009] In the present invention, it is possible to provide a recycling device for solar power generation equipment and a recycling method for solar power generation equipment that can suppress tearing of the backsheet.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0011] (Configuration of the Recycling Device for a Solar Power Generation Facility in the Present Embodiment) Hereinafter, the present embodiment will be described with reference to FIGS. 1, 2, and 3. The recycling device for a solar power generation facility is a device for sorting and separating various materials (such as plastics, metals, and glass) of the solar power generation facility for recycling. The recycling device 1 for a solar power generation facility has a container-shaped base 3 supported by a plurality of legs 2. And inside the container of the base 3, there are a number of roller conveyors 4, and the shaft 6 of the roller conveyor 4 is fixed through the inner wall surface 5 of the base 2 and penetrates the inner wall surface 5.

[0012] In this way, the shaft 6 is fixed to the base 3, and the cylindrical portion 7 of the roller conveyor 4 rotates around the shaft 6. When a plate-shaped waste solar power generation facility 8 with a thickness of 5 mm is placed on the roller conveyor 4 so that the cylindrical portion 7 rotates around the shaft 6, the waste solar power generation facility 8 can be easily moved in the direction of the conveying direction M or the reverse direction. Note that the roller conveyor 4 itself does not have the power of rotation, and the waste solar power generation facility 8 moves so as to slide in the conveying direction M or the reverse direction.

[0013] When placing the waste solar power generation facility 8 on the roller conveyor 4, the mainly glass part 9 of the waste solar power generation facility 8 is arranged on the lower side, and the backsheet 10 of the waste solar power generation facility 8 is arranged on the upper side. The method of conveying with the backsheet 10 of the waste solar power generation facility 8 on the upper surface is, for example, a method of making the backsheet 10 on the upper surface when placing the waste solar power generation facility 8 on the roller conveyor 4 by the hand of an operator or the like.

[0014] Here, the backsheet 10 is a cloth-like member made of glass fibers or the like similar to the above-described back surface protective material, and contains a large amount of rare metals such as rare earth metals. If the backsheet 10 is handled in such a way that it is torn, rare metals such as rare earth metals will peel off from the backsheet 10, making recycling difficult.

[0015] The recycling device 1 for solar power generation equipment has two rollers 13, 14 (made of iron) with opposing peripheral surfaces 11, 12 that convey while destroying the waste solar power generation equipment 8. Grooves 15 are formed on the peripheral surfaces 11, 12 that destroy the waste solar power generation equipment 8 in an oblique direction with respect to the conveyance direction M. Here, the groove 15 is formed in an oblique direction of 30° with respect to the length direction L of the rollers 13, 14.

[0016] The gap between the two rollers 13, 14 through which the waste solar power generation equipment 8 passes is 0 mm. And it has means for passing the waste solar power generation equipment 8 through the gap between the two rollers 13, 14 four or five times.

[0017] The depth of the groove 15 is about 1 mm (0.8 mm to 1.2 mm), the width is also about 1 mm (0.8 mm to 1.2 mm), and the interval between adjacent grooves 15 is also about 1 mm (0.8 mm to 1.2 mm). The groove 15 is very fine, and especially because its depth is as shallow as about 1 mm, even if the glass part 9 of the waste solar power generation equipment 8 is broken and becomes powdery, it suppresses filling the groove 15.

[0018] Also, the gap between the two rollers 13, 14 through which the waste solar power generation equipment 8 passes is 0 mm, that is, there is no gap. Even so, due to the deflection at the center in the length direction L of the rollers 13, 14, the waste solar power generation equipment 8 can pass through the gap between the two rollers 13, 14. Rather, if the gap between the two rollers 13, 14 is made too large, the friction between the groove 15 and the waste solar power generation equipment 8 becomes small, and the two slide against each other, making it impossible for the waste solar power generation equipment 8 to pass through the gap between the two rollers 13, 14.

[0019] Note that only the rotation of the two rollers 13 and 14 in the rotation directions N and P is the driving force for conveying the waste solar power generation facility 8 in the conveying direction M. The driving force for rotating the two rollers 13 and 14 in the rotation directions N and P is a rotational force such as that of a motor.

[0020] Also, the means for passing the waste solar power generation facility 8 through the gap between the two rollers 13 and 14 four or five times is, for example, means for repeatedly passing the waste solar power generation facility 8 through the gap between the two rollers 13 and 14 by the hand of an operator or the like.

[0021] (Operation of the recycling device 1 for the solar power generation facility according to the present embodiment) Hereinafter, the operation of the recycling device 1 for the solar power generation facility according to the present embodiment will be described with reference to FIG. 4. First, the waste solar power generation facility 8 placed on the roller conveyor 4 is slid on the roller conveyor 4 and positioned in the gap between the two rollers 13 and 14 (S1).

[0022] Next, the waste solar power generation facility 8 is passed through the gap between the rollers 13 and 14 rotating in the rotation directions N and P of the two rollers 13 and 14 (S2). At this time, the waste solar power generation facility 8 is conveyed with the backsheet 10 on the upper surface. Also, at this time, the glass portion 9 of the waste solar power generation facility 8 is broken, and after passing through the rollers 13 and 14, glass pieces or glass powder fall downward. This operation of passing the waste solar power generation facility 8 through the gap between the rollers 13 and 14 rotating in the rotation directions N and P of the two rollers 13 and 14 is repeated four or five times (a predetermined number of times) (S3).

[0023] (Main effects obtained by the present embodiment) According to the present embodiment, it is possible to provide a recycling device for a solar power generation facility and a recycling method for a solar power generation facility that can suppress tearing of the backsheet 10. The reason for this is that, unlike in Patent Document 1, a groove 15 is provided on the circumferential surface of the rollers 13 and 14 to gradually break the glass without providing something that violently breaks the glass, such as protrusions provided on the circumferential surface of the rollers. [[ID=Z2]]

[0024] Moreover, according to the present embodiment, the backsheet 10 and the glass can be separated relatively cleanly. The reason for this is considered to be that the groove 15 is provided on the circumferential surfaces of the rollers 13 and 14, the glass is gradually broken, and this is repeated a predetermined number of times (4 or 5 times in the present embodiment), so that the backsheet 10 and the glass can be separated very carefully.

[0025] Also, only the rotation of the rotational directions N and P of the two rollers 13 and 14 serves as the driving force for conveying the waste solar power generation facility 8 in the conveying direction M, and the roller conveyor 4 itself is assumed not to have the power of rotation. Therefore, the waste solar power generation facility 8 moves so as to slide in the conveying direction M or the reverse direction. By doing so, the configuration of the recycling device 1 of the solar power generation facility of the present embodiment can be simplified.

[0026] (Other embodiments) The recycling device 1 of the solar power generation facility according to the above-described present embodiment is an example of a preferred form of the present invention, but is not limited thereto, and various modifications can be made without changing the gist of the present invention.

[0027] For example, although the roller conveyor 4 itself does not have the power of rotation, the roller conveyor 4 may have the power to rotate about each shaft 6 as the rotation axis. This power is, for example, a motor or the like. And each roller conveyor 4 aligns the rotation directions so as to carry the waste solar power generation facility 8 in the direction of the conveying direction M at the same rotation speed. Also, since the legs 2, the base 3, and the roller conveyor 4 are not essential components, they can be omitted.

[0028] Also, when placing the discarded solar power generation facility 8 on the roller conveyor 4, the glass part 9 of the discarded solar power generation facility 8 is mainly arranged on the lower side, and the backsheet 10 of the discarded solar power generation facility 8 is arranged on the upper side. However, the glass part 9 may be on the upper side and the backsheet 10 may be on the lower side. The advantage of placing the glass part 9 on the lower side and the backsheet 10 on the upper side is that when the discarded solar power generation facility 8 passes through the gap between the rollers 13 and 14, if the broken glass is below the backsheet 10, the glass can fall smoothly without being blocked by the backsheet 10.

[0029] Also, when the glass part 9 of the discarded solar power generation facility 8 is on both the upper and lower sides of the backsheet 10, either side can be arranged on the upper or lower side. Also, when the glass part 9 of the discarded solar power generation facility 8 is on both the upper and lower sides of the backsheet 10 and the thickness of the glass part 9 on one side is thicker than that of the other glass part 9, it is preferable to arrange the thicker glass part 9 on the lower side. This is because the thicker glass can fall smoothly without being blocked by the backsheet 10.

[0030] On the exit side of the rollers 13 and 14 (the right side of the rollers 13 and 14 in the front view of FIG. 1), a perforated metal plate (punching metal) that allows the falling glass to pass through the holes and holds the backsheet 10 may be provided. By doing so, when the discarded solar power generation facility 8 is repeatedly passed through the gap between the rollers 13 and 14, the advantage of making it easier to collect the backsheet 10 with glass attached occurs.

[0031] Also, on the peripheral surfaces 11 and 12 for destroying the discarded solar power generation facility 8, grooves 15 are formed in an oblique direction with respect to the conveying direction M. These oblique directions intersect (FIGS. 2 and 3). However, only one of these intersecting oblique directions may be used. Furthermore, the grooves may be in the longitudinal or transverse direction with respect to the conveying direction M.

[0032] However, by forming the grooves 15 in a direction oblique to the conveying direction M on the circumferential surfaces 11, 12, the "biting (increasing friction)" of the grooves 15 into the discarded solar power generation facility 8 becomes good. Furthermore, by forming the grooves so that one oblique direction intersects with the oblique direction on the opposite side, the "biting" can be further improved. Also, it is possible to form the grooves 15 only on one of the circumferential surfaces 11, 12 (preferably on the side facing the glass part 9).

[0033] Also, the depth of the groove 15 is about 1 mm, the width is also about 1 mm, and the interval between adjacent grooves 15 is also about 1 mm. Note that in FIGS. 2 and 3, the part of the line of the groove is the concave part (depth), and the other parts of the circumferential surfaces 11, 12 are the convex parts. This "depth", "width", and "interval between adjacent grooves 15" may be 0.1 mm or more and less than 0.8 mm, or may be more than 1.2 mm and 10 mm or less. Furthermore, the part of the groove 15 may be a convex part protruding from the circumferential surfaces 11, 12, and the other parts of the circumferential surfaces 11, 12 may be concave parts. The height of this convex part can be about 1 mm (0.8 mm to 1.2 mm), the width can also be about 1 mm (0.8 mm to 1.2 mm), and the interval between adjacent convex parts can also be about 1 mm (0.8 mm to 1.2 mm). This "height", "width", and "interval between adjacent convex parts" may be 0.1 mm or more and less than 0.8 mm, or may be more than 1.2 mm and 10 mm or less.

[0034] Also, the groove 15 is formed in a direction 30° oblique to the length direction L of the rollers 13, 14. However, the forming angle of the groove 15 is preferably more than 0° and 70° or less with respect to L, and more preferably more than 0° and 45° or less.

[0035] Also, the gap between the two rollers 13, 14 through which the discarded solar power generation facility 8 passes is 0 mm, that is, there is no gap. However, this gap can be more than 0 mm and 0.2 mm or less. However, by setting this gap to more than 0 mm and 0.1 mm or less, the "biting" between the discarded solar power generation facility 8 and the groove 15 can be improved. Of course, it goes without saying that setting the gap between the two rollers 13, 14 to 0 mm makes the above "biting" the best.

[0036] Also, the dimension of the gap between the above two rollers 13 and 14 is based on the premise that the thickness of the waste solar power generation equipment 8 is 5 mm. However, this dimension can be applied to the thickness dimension of most waste solar power generation equipment 8.

[0037] Also, it is stated that the waste solar power generation equipment 8 is passed through the gap between the two rollers 13 and 14 four or five times. However, this number of times can be one to three times, or six times or more. Also, the means of passing the waste solar power generation equipment 8 through the gap between the two rollers 13 and 14 four or five times is, for example, a means of repeatedly passing the waste solar power generation equipment 8 through the gap between the two rollers 13 and 14 by the hand of an operator or the like. However, rotational power such as that of a motor is applied to the roller conveyor 4 of the table 3, and the table 3 is made in the shape of a track of a land stadium so that the waste solar power generation equipment 8 that has passed through the gap between the two rollers 13 and 14 comes to the position before passing through the gap between the two rollers 13 and 14 again, and a means of arranging the roller conveyor 4 may be adopted so that the waste solar power generation equipment 8 can pass through the gap between the two rollers 13 and 14 a plurality of times.

[0038] Also, three or more rollers 13 and 14 may be provided. By providing three or more rollers, for example, the gap between the rollers through which the waste solar power generation equipment 8 passes can be gradually narrowed. If so, it may be possible to gradually break the glass in one step, and the step (S3) of passing the waste solar power generation equipment 8 through the gap between the rollers 13 and 14 a plurality of times may become unnecessary. Also, although the rollers 13 and 14 are made of iron, they may be made of other materials such as stainless steel.

Explanation of Reference Numerals

[0039] 1 Recycling device for solar power generation equipment 8 Waste solar power generation equipment 10 Backsheet 11, 12 Peripheral surface 13, 14 Roller 15 Groove

Claims

1. A device for recycling a solar power generation facility, comprising a plurality of rollers with opposing peripheral surfaces, which convey the facility while destroying it; Among the peripheral surfaces of the plurality of rollers, on the peripheral surface for destroying the waste solar power generation facility, grooves are formed that intersect in an oblique direction with respect to the conveying direction; The depth, width of the grooves, and the interval between adjacent grooves are all 0.8 to 1.2 mm; It has a means for passing the waste solar power generation facility through the gap between the plurality of rollers one or more times; There is no gap between the plurality of rollers; Due to the deflection at the center in the longitudinal direction of the plurality of rollers, the waste solar power generation facility can pass through the gap between the plurality of rollers; A device for recycling a solar power generation facility.

2. A method for recycling a solar power generation facility, comprising a plurality of rollers with opposing peripheral surfaces, which convey the facility while destroying it; Among the peripheral surfaces of the plurality of rollers, on the peripheral surface for destroying the waste solar power generation facility, grooves are formed that intersect in an oblique direction with respect to the conveying direction; The depth, width of the grooves, and the interval between adjacent grooves are all 0.8 to 1.2 mm; The waste solar power generation facility is passed through the gap between the plurality of rollers one or more times; The waste solar power generation facility is conveyed with the backsheet on the upper surface; The gap between the plurality of rollers is eliminated; Due to the deflection at the center in the longitudinal direction of the plurality of rollers, the waste solar power generation facility passes through the gap between the plurality of rollers; A method for recycling a solar power generation facility.

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