CN114734353A - Equipment and method for removing fluorine-containing layer of backboard - Google Patents
Equipment and method for removing fluorine-containing layer of backboard Download PDFInfo
- Publication number
- CN114734353A CN114734353A CN202210368078.3A CN202210368078A CN114734353A CN 114734353 A CN114734353 A CN 114734353A CN 202210368078 A CN202210368078 A CN 202210368078A CN 114734353 A CN114734353 A CN 114734353A
- Authority
- CN
- China
- Prior art keywords
- back plate
- fluorine
- containing layer
- grinding wheel
- conveying platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 51
- 239000011737 fluorine Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000007779 soft material Substances 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000010431 corundum Substances 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 229910001651 emery Inorganic materials 0.000 abstract description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0092—Grinding attachments for lathes or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The equipment and the method for removing the fluorine-containing layer of the back plate comprise a conveying platform, a stop piece, a driving piece and a grinding wheel, wherein the conveying platform is suitable for placing the back plate, the stop piece is arranged on two sides of the top of the conveying platform, the driving piece is arranged between the two stop pieces, the grinding wheel is in transmission connection with the bottom of the driving piece, and the driving piece drives the grinding wheel so that the grinding wheel can remove the fluorine-containing layer of the back plate. Adopt the emery wheel to get rid of the operation to backplate fluorine-containing layer in this application, it is effectual to get rid of to can age or have the product of defect to carry out recovery processing, its scope of use is wider, and its product competitiveness is higher.
Description
Technical Field
The invention belongs to the technical field of photovoltaic module recovery, and particularly relates to equipment and a method for removing a fluorine-containing layer of a back plate.
Background
The photovoltaic module is a core device for converting light energy into electric energy, and in order to make the photovoltaic module have a long service life, a fluorine-containing back plate is used. For a scrapped photovoltaic module with the service life reaching the limit, the main method for recycling is pyrolysis, namely, EVA (ethylene-vinyl acetate) of the packaging adhesive film is pyrolyzed and carbonized at high temperature (over 500 ℃) to recycle important materials such as a battery piece, glass, a welding strip and the like. Since the fluorine-containing material has a large influence on the environment and cannot be directly pyrolyzed, the fluorine-containing material needs to be removed first. The existing removing method mainly comprises the steps of heating the back plate at a high temperature (about 120 ℃) to weaken the adhesive force between the back plate and EVA, and peeling the back plate by using mechanical tension, wherein the method is feasible for unaged components of the back plate, but not feasible for components which are in service for more than 20 years, because the middle PET layer is seriously hydrolyzed after the back plate is used for more than 20 years outdoors, the elongation at break is extremely low, and the back plate is easy to brittle failure, so that great trouble is brought to the removal of the back plate.
At present, the photovoltaic back panel is removed (peeled) under two conditions, one is the situation that the back panel is not aged, the situation is basically slight quality defect in the production process of the assembly and is easy to meet when the assembly needs to be repaired, under the situation, the laminated part needs to be preheated to more than 20 ℃ first, the temperature is kept for 20 minutes, the bonding force between EVA and the back panel is reduced, and the whole piece of glass is manually or mechanically removed; secondly, the back sheet is aged, the PET of the inner layer is hydrolyzed seriously, the crystallinity is reduced, the tensile strength and the elongation at break are reduced seriously, especially the elongation at break is reduced by over 90 percent, and therefore, the method of heating before peeling is not feasible. In addition, the glass burst assembly is not recycled at all at present, and can only be integrally scrapped for disposal, which not only causes waste of valuable resources, but also seriously pollutes the environment.
Accordingly, there is a need to develop an apparatus and method for removing a fluorine-containing layer of a backplate, which can solve the above problems.
Disclosure of Invention
In view of the above, the present invention provides an apparatus and a method for removing a fluorine-containing layer of a backplane, which achieve the function of removing the fluorine-containing layer of an aged backplane.
In order to achieve the purpose, the invention adopts the technical scheme that:
an apparatus for removing a fluorine-containing layer of a back plate, comprising
A conveying platform suitable for placing the back plate;
the stopping pieces are arranged on two sides of the top of the conveying platform;
the driving piece is arranged between the two stopping pieces; and
and the grinding wheel is in transmission connection with the bottom of the driving part, and the driving part drives the grinding wheel so that the grinding wheel removes the fluorine-containing layer of the back plate.
Preferably, the direction of movement of the stop is the same as or opposite to the direction of movement of the transport platform.
Preferably, the stop member is a press roller made of a soft material, and the diameter of the press roller is 20-50 mm.
Preferably, the grinding wheel is any one of a grinding wheel, a diamond wheel, a corundum wheel and a silicon carbide wheel.
Preferably, the rotational speed of the conveying platform is 10-30 revolutions per minute.
Preferably, the grinding wheel grinding device further comprises a hood arranged at the top of the conveying platform, and the stop piece, the driving piece and the grinding wheel are all positioned inside the hood.
In addition, the application also provides a method for removing the fluorine-containing layer of the back plate, which is applied to the equipment for removing the fluorine-containing layer of the back plate and comprises the following steps
S1, placing the back plate on the conveying platform, and placing the fluorine-containing layer of the back plate on the side opposite to the stop piece;
s2, starting a stop piece, wherein the stop piece fixes the back plate to the conveying platform;
s3, starting the conveying platform and the driving piece, wherein the back plate moves forward along with the conveying platform, and the driving piece drives the grinding wheel to grind the fluorine-containing layer of the back plate;
s4, the grinding wheel and the stop piece are reset.
Preferably, a step of adjusting the relative position of the stopper and the back plate is further included before step S2.
Preferably, the step S3 includes the step of setting the grinding path.
Preferably, the grinding path is linear or curved.
Compared with the prior art, the invention has the beneficial effects that: firstly, the grinding wheel is adopted to remove the fluorine-containing layer of the back plate in the application, so that the removal effect is good; secondly, the product which is aged or has defects can be recycled, the application range is wider, the product competitiveness is higher, and the application does not relate to the traditional heating, manual stripping or chemical agent treatment during the function, so the application has lower energy consumption during the function, does not generate waste liquid or waste gas to pollute the environment during the post-treatment, and belongs to a novel green treatment method; thirdly, the simple structure of this application, convenient control, place strong adaptability, its efficiency is higher, in addition, the fluorine-containing back plate to the subassembly that bursts that this application also can be better is got rid of.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for removing a fluorine-containing layer from a back plate according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for removing a fluorine-containing layer from a back plate according to an embodiment of the present invention.
Reference numerals and component parts description referred to in the drawings:
1-a conveying platform; 2-a stop; 3-a drive member; 4-a grinding wheel; 5-a back plate.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the device for removing the fluorine-containing layer of the back plate comprises a conveying platform 1, stop parts 2, a driving part 3 and a grinding wheel 4, wherein the conveying platform 1 is suitable for placing the back plate 5 to be treated, the stop parts 2 are arranged on two sides of the top of the conveying platform 1, the driving part 3 is arranged between the two stop parts 2, the driving part 3 can move relative to the conveying platform 1 in multiple degrees of freedom, the grinding wheel 4 is in transmission connection with the bottom of the driving part 3, and the driving part 3 drives the grinding wheel 4 so that the grinding wheel 4 can remove the fluorine-containing layer of the back plate 5. Adopt emery wheel 4 to get rid of the operation 5 fluorine containing layers of backplate in this application, it gets rid of effectually to can age or there is the product of defect to carry out recovery processing, its scope of use is wider, and product competitiveness is higher, in addition, the simple structure of this application, convenient control, place strong adaptability, its efficiency is higher.
Specifically, when the equipment is started, firstly, the stop piece 2 can be adjusted in multiple directions, the moving direction of the stop piece 2 is the same as or opposite to the moving direction of the conveying platform 1, so that the stop piece 2 is adjusted to a proper position, the back plate 5 is fixed on the conveying platform 1, secondly, the conveying platform 1 drives the back plate 5 to move forwards at a speed of 10-30 revolutions per minute, and the conveying platform 1 can convey the back plate 5 to the position below the grinding wheel 4, so that the grinding wheel 4 can conveniently perform abrasive treatment. Preferably, the stop member 2 is a press roller, the diameter of the press roller is 20-50mm, the press roller is made of a soft material, the soft material can be rubber and the like, the friction resistance is large, the backboard 5 can be better fixed, in addition, the backboard 5 is not easy to be damaged, the deformation or damage of recyclable components in the backboard 5 can be prevented, and the integrity of the recyclable components can be effectively protected.
Specifically, the grinding wheel 4 is any one of a grinding wheel, a diamond wheel, a corundum wheel and a silicon carbide wheel, and when the grinding wheel is used, the final type of the grinding wheel 4 and the function parameters such as specific granularity and hardness of the grinding wheel 4 are selected according to the actual parameters such as service life of the back plate 5 and the use environment.
Preferably, the apparatus further comprises a hood (not shown) disposed on top of the conveyor platform 1, the hood being openable and closable relative to the conveyor platform 1, the stop 2, the drive 3 and the grinding wheel 4 being located within the hood. Because this equipment removes the fluorine-containing layer on the backplate 5 through the mode of abrasive material, so can produce partial piece, restrict the piece inside through the aircraft bonnet, conveniently do and concentrate recovery processing, this kind of setting method can restrict clastic splashing, the environmental protection, simultaneously, protects constructor's personal safety.
Referring to fig. 2, the present application further provides a method for removing a fluorine-containing layer of a back plate, which is applied to the above-mentioned apparatus for removing a fluorine-containing layer of a back plate, comprising the following steps
S1, the back sheet 5 is placed on the transfer platform 1, and the fluorine-containing layer of the back sheet 5 is placed on the side opposite to the stopper 2. Before proceeding to S1, the status of the whole device should be checked in advance, and if it is confirmed that the device has the start condition, the relevant operation of step S1 is performed again.
S2, the stopper 2 is activated, and the stopper 2 fixes the back plate 5 to the conveying platform 1. Step S2 is preceded by a step of adjusting the relative position of the stop member 2 and the backboard 5, and since the backboard 5 may have different dimensions, the stop member 2 is adjusted to a proper position to fix the backboard 5 on the conveying platform 1, so as to ensure the reliability of the fixing and prevent the backboard 5 from slipping.
S3, starting the conveying platform 1 and the driving part 3, enabling the back plate 5 to advance along with the conveying platform 1, and driving the grinding wheel 4 to grind the fluorine-containing layer of the back plate 5 by the driving part 3. Considering the problem of adaptability between the size of the back plate 5 and the size of the grinding wheel 4, a step of setting a grinding path is considered in step S3, specifically, when the size of the grinding wheel 4 is greater than or equal to the size of the back plate 5 perpendicular to the feeding direction, the grinding path may be set to be linear, after the conveying platform 1 conveys the back plate 5 to the working range of the grinding wheel 4, the conveying platform 1 stops moving, at this time, the driving member 3 drives the grinding wheel 4 and performs linear reciprocating grinding on the fluorine-containing layer of the back plate 5 until the fluorine-containing layer is completely removed; or after the conveying platform 1 conveys the back plate 5 to the working range of the grinding wheel 4, the conveying platform 1 continues to move, at this time, the driving part 3 drives the grinding wheel 4 and linearly grinds the fluorine-containing layer of the back plate 5 at one time, and then the fluorine-containing layer of the back plate 5 can be removed. When the size of the grinding wheel 4 is smaller than the size of the back plate 5 perpendicular to the feeding direction, the grinding wheel 4 cannot cover the whole back plate 5 in a single grinding process as in the above case, so the grinding path is set to be curved, preferably, the grinding path is in the shape of a word such as a Chinese character 'ji' or a Chinese character 'hui', and the grinding path is not limited to the above curved shape, when the conveying platform 1 conveys the back plate 5 to the working range of the grinding wheel 4, the conveying platform 1 stops moving, at this time, the driving member 3 drives the grinding wheel 4 and performs reciprocating grinding on the fluorine-containing layer of the back plate 5 in the curved shape until the fluorine-containing layer is completely removed; or, after the conveying platform 1 conveys the back plate 5 to the working range of the grinding wheel 4, the conveying platform 1 continues to move, at this time, the driving part 3 drives the grinding wheel 4 and performs reciprocating grinding on the fluorine-containing layer of the back plate 5 in a direction perpendicular to the moving direction of the conveying platform 1, so that the grinding path on the back plate 5 is in a curve shape, and in this way, the disposable removal of the fluorine-containing layer of the back plate 5 can be realized under specific conditions.
S4, grinding wheel 4 and stop 2 are repositioned. The use of convenient circulation going on many times has improved the efficiency of use.
The application does not relate to traditional heating or adopt chemical agent to handle when the function, so the energy consumption of this application when the function is lower, and during aftertreatment, can not produce waste liquid or waste gas and come the polluted environment, belongs to a novel green processing method.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An apparatus for removing a fluorine-containing layer of a back plate, comprising
A conveying platform suitable for placing the back plate;
the stopping pieces are arranged on two sides of the top of the conveying platform;
the driving piece is arranged between the two stopping pieces; and
and the grinding wheel is in transmission connection with the bottom of the driving part, and the driving part drives the grinding wheel so that the grinding wheel removes the fluorine-containing layer of the back plate.
2. The apparatus for removing a fluorine-containing layer of a back plate according to claim 1, wherein the stopper is moved in the same direction as or opposite to the moving direction of the conveying table.
3. The apparatus for removing a fluorine-containing layer of a back plate according to claim 1, wherein the stopper is a press roller made of a soft material, and the diameter of the press roller is 20 to 50 mm.
4. The apparatus for removing a fluorine-containing layer of a back plate according to claim 1, wherein the grinding wheel is any one of a grinding wheel, a diamond wheel, a corundum wheel and a silicon carbide wheel.
5. The apparatus for removing a fluorine-containing layer of a back plate according to claim 1, wherein the rotation speed of the transfer stage is 10 to 30 rpm.
6. The apparatus for removing fluorine containing layer of the back plate as claimed in claim 1, further comprising a hood provided on top of said transporting platform, wherein said stopping member, said driving member and said grinding wheel are located inside said hood.
7. A method for removing a fluorine-containing layer of a back plate, which is applied to the apparatus for removing a fluorine-containing layer of a back plate according to any one of claims 1 to 6, comprising the steps of
S1, placing the back plate on the conveying platform, and placing the fluorine-containing layer of the back plate on the side opposite to the stop piece;
s2, starting a stop piece, wherein the stop piece fixes the back plate to the conveying platform;
s3, starting the conveying platform and the driving piece, wherein the back plate moves forward along with the conveying platform, and the driving piece drives the grinding wheel to grind the fluorine-containing layer of the back plate;
s4, the grinding wheel and the stop piece are reset.
8. The method for removing the fluorine containing layer of the back plate of claim 7, further comprising the step of adjusting the relative position of the stopper and the back plate before the step S2.
9. The method for removing a fluorine-containing layer of a back plate according to claim 7, wherein the step S3 comprises the step of setting a polishing path.
10. The method of claim 9, wherein the polishing path is linear or curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210368078.3A CN114734353A (en) | 2022-04-08 | 2022-04-08 | Equipment and method for removing fluorine-containing layer of backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210368078.3A CN114734353A (en) | 2022-04-08 | 2022-04-08 | Equipment and method for removing fluorine-containing layer of backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114734353A true CN114734353A (en) | 2022-07-12 |
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ID=82280310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210368078.3A Pending CN114734353A (en) | 2022-04-08 | 2022-04-08 | Equipment and method for removing fluorine-containing layer of backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114734353A (en) |
Cited By (1)
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| CN115106871A (en) * | 2022-08-29 | 2022-09-27 | 成都中科卓尔智能科技集团有限公司 | Flexible high-precision repairing device and process for surface defects of semiconductor material |
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