TWI666071B - Stamping method - Google Patents

Abstract

A stamping method is suitable for recycling a strengthened glass of a solar photovoltaic module. The strengthened glass is installed in a module support frame of the solar photovoltaic module and has a rectangular shape. The stamping method includes the following steps: Step 1: The solar photovoltaic module is placed on a carrier; step two: a punching mechanism located above the carrier impacts the tempered glass from top to bottom, the tempered glass has four impact points, and the punching mechanism has four parts Corresponding to the impact columns of the impact points, when the stamping mechanism falls, the impact columns will impact the impact points respectively, and the strengthened glass is broken into several glass fragments; and step 3: the stamping mechanism moves upward from the solar photovoltaic The module, through proper selection of these impact points, can make the strengthened glass more uniform and finely broken.

Description

Stamping method

The invention relates to a stamping method, in particular to a stamping method for crushing reinforced glass of waste solar photovoltaic modules.

At present, the main power generation methods are thermal power generation and nuclear power generation, but the nuclear waste generated by nuclear power generation and the risk of hidden nuclear disasters have a considerable impact on humans and the environment. Therefore, the government also plans to reduce the proportion of nuclear power generation and use solar power instead. It is estimated that by 2025, the installed capacity of solar power will reach 20 million tons, and the total amount of waste caused by damage to solar power modules will reach 1.21 million tons. Although the process of solar power generation will not cause pollution, if the damaged solar photovoltaic module is not properly recycled, the huge amount of waste will still have an impact on the environment.

The solar photovoltaic module is mainly composed of a module support frame, a solar cell unit installed in the module support frame, and a strengthened glass covering the solar cell unit. Among the wastes derived from various components, the proportion of glass is the highest, accounting for about 60% of the total weight. Therefore, if the waste glass of solar photovoltaic modules can be effectively and fully recycled, it will not only greatly reduce the total amount of waste, Reduce environmental impact The burden can also increase the value of solar photovoltaic modules.

In the existing recycling equipment of solar photovoltaic modules, the reinforced glass is crushed into several glass fragments by a stamping device, and the smaller-sized glass fragments are collected through a sieve, and the larger-sized glass fragments are passed through one. The crushing device crushes glass fragments with a smaller particle size and then collects them. If the strengthened glass is not finely broken when it is crushed by the stamping device, most of the glass fragments must be crushed by the rolling device. Because the hardness of the strengthened glass is high, rolling a large number of glass fragments easily causes the crushing. Damage to the device reduces the efficiency of solar photovoltaic module recycling, and also increases the cost of recycling.

It is an object of the present invention to provide a stamping method capable of overcoming at least one of the disadvantages of the prior art.

Therefore, the punching method of the present invention is used for recycling a strengthened glass of a solar photovoltaic module. The strengthened glass is installed in a module support frame of the solar photovoltaic module and has a rectangular shape and has two lengths along one length. The short sides arranged at intervals in the direction, two long sides arranged at intervals in a width direction, and four impact points located around the intersection of the long sides and the short sides. The stamping method includes the following steps: Step 1: Place the solar photovoltaic module on a carrier; Step 2: A stamping mechanism located above the carrier impacts the tempered glass from top to bottom, the stamping mechanism has four For the impact columns corresponding to the impact points of the strengthened glass, the impact columns are divided when the stamping mechanism is dropped. Don't hit the impact points, crush the strengthened glass into several glass fragments; and step three: the punching mechanism moves upward from the solar photovoltaic module.

The effect of the present invention is that by the impact columns impacting the impact points around the corner of the strengthened glass, the strengthened glass being impacted will be broken more completely, thereby reducing the burden of subsequent recycling processes and reducing the cost of recycling. .

1‧‧‧solar photovoltaic module

11‧‧‧solar cell

12‧‧‧ tempered glass

121‧‧‧ short side

122‧‧‧long side

123‧‧‧ impact point

13‧‧‧Modular support

2‧‧‧ Degumming device

3‧‧‧Stamping device

31‧‧‧ carrier

32‧‧‧Stamping mechanism

321‧‧‧Impact column

322‧‧‧Broken End

4‧‧‧ screening device

5‧‧‧ Rolling device

6‧‧‧ Conveying device

D‧‧‧ Processing direction

L‧‧‧ total length

A‧‧‧The distance between the impact point and the adjacent long side

B‧‧‧ the distance between the impact point and the adjacent short side

W‧‧‧Total width

X‧‧‧length direction

Y‧‧‧Width direction

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is an exploded perspective view illustrating a solar photovoltaic module for processing by the punching method of the present invention; FIG. 2 is a top view illustrating the structure of the solar photovoltaic module; FIG. 3 is an incomplete schematic diagram illustrating the position of the present invention in a solar photovoltaic recycling process, showing a part of the process; FIG. 4 is an incomplete A schematic diagram illustrating the position of the present invention in the solar photovoltaic recycling process, and the figure shows another part of the process; FIG. 5 is a schematic diagram illustrating an embodiment of the punching method of the present invention; and FIG. 6 is a schematic diagram illustrating the impact of this embodiment. Shattered tempered glass.

Referring to Figures 1, 2, and 5, an embodiment of the stamping method of the present invention is used in a stamping process for recycling a solar photovoltaic module 1. The solar photovoltaic module 1 includes a solar cell unit 11 and a cover over the solar cell unit. The reinforced glass 12 on 11 and a module support frame 13 surrounding the solar cell 11 and the reinforced glass 12. The tempered glass 12 includes two short sides 121 spaced apart along a length direction X, two long sides 122 spaced apart along a width direction Y, and four short sides 121 located at the intersection of the long sides 122 and the short sides 121. Around the impact point 123.

As shown in FIG. 3 and FIG. 4, the solar photovoltaic module recycling process includes a degreasing device 2, a stamping device 3, a screening device 4, a rolling device 5, and a plurality of devices connected in sequence along a processing direction D. The conveying device 6 between the aforementioned devices. Since the solar photovoltaic module 12 and the solar photovoltaic module recycling process, except for the strengthened glass 14 and the stamping device 3, are not the improvement focus of the present invention, they will not be described further.

5 and 6, the stamping device 3 includes a carrier 31 for placing the solar photovoltaic module 1 and a stamping mechanism 32 located above the carrier 31. The stamping mechanism 32 can be moved up and down relative to the carrier 31. It moves and has four impact columns 321 respectively corresponding to the impact points 123 of the strengthened glass 12, and each impact column 321 has a breaking end 322 that contacts the strengthened glass 12. The stamping method includes the following steps: Step 1: Place the solar photovoltaic module 1 on the stage 31; Step 2: Move the stamping mechanism 32 from above to above the strengthened glass 12, so that the broken ends 322 At a distance of 20 mm from the tempered glass 12, At a speed of 60 mm per second, a downward movement of 22.5 mm impacts the strengthened glass 12, and the impact columns 321 will impact the impact points 123, respectively, and break the strengthened glass 12 into a number of glass fragments 9, each impact point 123. The distance A from the adjacent long side 122 is 18-22% of the total width W of the strengthened glass, and the distance B between each impact point 123 and the adjacent short side 121 is 18-22% of the total length L of the strengthened glass. . And step three: the stamping mechanism 32 moves upward from the solar photovoltaic module 1; it should be particularly noted that according to the test results, the impact points 123 are impacted within this distance, and the strengthened glass 12 will be broken. It is more uniform and finely broken. Among them, the better condition is that the distance A between each impact point 123 and the adjacent long side 122 is 20% of the total width W of the strengthened glass. The distance B is 20% of the total length L of the tempered glass.

Referring to FIGS. 3 and 4, after the above steps are completed, the conveying device 6 will move the glass fragments 9 to the screening device 4. The smaller-sized glass fragments 9 can be collected by the screening device 4. The glass fragments 9 will continue to be sent to the crushing device 5 for crushing. Since the subsequent process is not the focus of the improvement of the present invention, it will not be described further.

In summary, the effect of the punching method of the present invention is that the impact columns 321 are used to impact the impact points 23 of the strengthened glass 12 respectively, so that the strengthened glass 12 starts to be broken from the impact points 123 and affect each other. The glass fragments 9 formed by breaking the strengthened glass 12 are more uniformly and finely reduced, thereby reducing the burden of the subsequent rolling device 5, thereby improving the efficiency of recycling the solar photovoltaic module 1 and reducing costs. So indeed The purpose of the present invention can be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (4)

A stamping method is used for recycling a strengthened glass of a solar photovoltaic module. The strengthened glass is installed in a module support frame of the solar photovoltaic module and has a rectangular shape, and two are arranged at intervals along a length direction. The short side of the two, two long sides spaced along a width direction, and four impact points located around the intersection of the long sides and the short sides. The stamping method includes the following steps: Step 1: The solar photovoltaic The module is placed on a carrier; step two: a punching mechanism located above the carrier is used to impact the strengthened glass from top to bottom, and the four impact columns of the punching mechanism are downwardly impacted on the four of the strengthened glass. The impact point, the reinforced glass is broken into several glass fragments, and the distance between each impact point and the adjacent long side is between 18% and 22% of the total width of the strengthened glass, and each impact point is adjacent to the adjacent The distance between the short sides is between 18% and 22% of the total length of the strengthened glass; and step three: the stamping mechanism moves upward from the solar photovoltaic module. The punching method according to claim 1, wherein the distance between each impact point and the adjacent long side is 20% of the total width of the strengthened glass, and the distance between each impact point and the adjacent short side is the strengthening 20% of the total length of the glass. The punching method according to claim 2, wherein each impact column has a breaking end that contacts the strengthened glass, and the impact columns are at a distance of 20 mm from the strengthened glass at a time per second The tempered glass was impacted downward at a speed of 60 mm. The punching method according to claim 3, wherein the distance at which the impact columns impact the tempered glass downwardly at a speed of 60 mm per second is 22.5 mm.