Production equipment and method of photovoltaic ultra-white glass

Abstract

According to the production equipment and method for the photovoltaic ultra-white glass, the equipment arrangement is more reasonable, and compared with the mode that a recovery mechanism is arranged on the ground, the space occupied by the ground of a plant can be reduced by arranging a first recovery mechanism below the ground; and glass fragments generated by glass breaking can be effectively prevented from splashing or drifting in the air when glass breaking is carried out underground, so that the glass recycling efficiency is improved, the influence on the environment in a plant is reduced, and the working environment of workers is improved.

Description

Technical Field

[0001] The present invention relates to the field of glass processing, and in particular to a production device and method for photovoltaic ultra-white glass. Background Art

[0002] Glass is an amorphous inorganic non-metallic material, which is generally made of a variety of inorganic minerals as the main raw materials, and a small amount of auxiliary raw materials. Ultra-white glass panels are used in the field of photovoltaic power generation. Ultra-white glass is a kind of ultra-transparent low-iron glass, also known as low-iron glass and high-transparency glass. It is a high-quality, multi-functional new high-end glass variety with a light transmittance of more than 91.5%. However, the existing photovoltaic ultra-white glass production line is not reasonably configured, resulting in low efficiency in glass production, which is mainly reflected in the low efficiency of the recycling of defective glass. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a production device and method for photovoltaic ultra-white glass.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides a photovoltaic ultra-white glass production device, comprising a melting furnace, a calender and an annealing furnace, wherein the melting furnace, the calender and the annealing furnace are arranged in sequence, and a first conveying device is arranged between the calender and the annealing furnace for connection; It also includes a raw material mixing device, which is arranged at the feeding end of the melting furnace and is used to mix the raw materials for producing glass; A cutting device, provided at the discharge end of the annealing furnace, for cutting the rolled glass into a suitable size; A first defect detection device is used to detect defects on the rolled glass; A second conveying device, used for conveying the glass sheet blank, and the cutting device and the first defect detection device are both arranged on the second conveying device; A first recycling device, used for crushing and recycling defective glass; The edge grinding device is used to grind the edges of the cut glass.

[0005] As a preferred technical solution of the present invention, the raw material mixing device includes a powerful mixer, which is provided with a plurality of quantitative feeding mechanisms. After the silica sand is fed into the powerful mixer, appropriate amounts of soda ash, dolomite, limestone, sodium sulfate, aluminum hydroxide and composite clarifier are fed into the mixer as auxiliary materials through the plurality of quantitative feeding mechanisms. After the stirring is completed, the raw materials are fed into the furnace to be melted into glass liquid.

[0006] As a preferred technical solution of the present invention, the molten glass in the melting furnace is sent to the calender, and the calender is used to roll the glass liquid into a glass plate, and the rolled glass plate is sent to the annealing furnace for annealing through the first conveying device.

[0007] As a preferred technical solution of the present invention, the annealed glass plate blank is sent to the cutting device, which includes an automatic cutting mechanism and an automatic breaking mechanism sequentially arranged on the second conveying device. The automatic cutting mechanism cuts the glass plate blank, and then the automatic breaking mechanism breaks the glass plate blank to obtain a glass plate blank of suitable size.

[0008] As a preferred technical solution of the present invention, the glass plate original is sent to the first defect detection device, which includes a length and width detection mechanism, a thickness detection mechanism and an appearance detection mechanism which are arranged on the second conveying device at the same time. The length and width, thickness and appearance of the glass plate original are detected by the length and width detection mechanism, the thickness detection mechanism and the appearance detection mechanism, and unqualified glass plate originals are recycled.

[0009] As a preferred technical solution of the present invention, the first recovery device comprises a guiding mechanism, a first crushing mechanism and a first transporting mechanism, wherein the first crushing mechanism and the first transporting mechanism are all arranged under the ground below the second conveying device, the feeding end of the first crushing mechanism is arranged at the unloading place of the second conveying mechanism, the first transporting mechanism connects the discharging end of the first crushing mechanism and the feeding end of the furnace, and the guiding mechanism is arranged at the unloading place of the second conveying mechanism to guide the unqualified glass plate original piece into the first crushing mechanism.

[0010] A third conveying device is provided between the edge grinding device and the first recycling device to send qualified glass plate original pieces for edge grinding. The edge grinding device comprises an edge grinding mechanism, an automatic edge and corner detection mechanism and an edge grinding cleaning mechanism. The glass plate original pieces are edge ground by the edge grinding mechanism, and then the edge grinding condition of the glass plate original pieces is detected by the automatic edge and corner detection mechanism. Qualified products are sent to the edge grinding cleaning mechanism for cleaning, and unqualified products are discarded.

[0011] The invention also includes a silk screen printing device for silk screen printing on the glass after edge grinding; The invention also includes a coating device for coating the edge-grinded glass.

[0012] A method for producing photovoltaic ultra-white glass comprises the following steps: Step 1, sending silica sand, soda ash, dolomite, limestone, sodium sulfate, aluminum hydroxide and composite clarifier in appropriate proportions into the strong mixer for stirring, and sending the obtained mixture into the melting furnace for melting to obtain glass liquid; Step 2, sending the glass liquid to the rolling mechanism for rolling, and then sending the glass plate obtained by rolling to the annealing furnace for annealing to obtain a glass plate blank; Step 3: The glass plate blank is cut by the automatic cutting mechanism and the automatic breaking mechanism to obtain a glass plate original piece of suitable size; Step 4: The original glass plate is inspected and tested by the length and width inspection mechanism, the thickness inspection mechanism and the appearance inspection mechanism to be qualified. The qualified original glass plate is packaged and sold or finely processed, and the unqualified original glass plate is sent to the first recycling device for recycling; Step 5: The unqualified glass plate original piece is sent to the crushing mechanism by the guide mechanism for crushing, and the crushed glass slag is sent to the melting furnace by the first transport mechanism for melting to obtain glass liquid; Step 6: The original glass plate is edged by the edge grinding mechanism, and is tested by the automatic edge detection mechanism to see if it is qualified. Qualified products are processed later, and unqualified products are recycled and reused.

[0013] The following steps are also included: Coating: coating the glass plate after edge grinding by means of a coating device; Silk screen printing: silk screen printing is performed on the glass plate after edge grinding by means of a silk screen printing device; Tempering: tempering the glass plate after coating or silk-screen printing; Inspection: Finished products are inspected on the tempered glass panels, qualified products are packaged, and unqualified products are recycled and reused.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The equipment layout in the present invention is more reasonable. By setting the first recovery mechanism below the ground, the space occupied on the factory floor can be reduced compared to setting the recovery mechanism on the ground. Moreover, breaking the glass below the ground can effectively prevent the glass fragments generated by the broken glass from splashing or floating in the air, which not only improves the efficiency of glass recycling, but also reduces the impact on the environment in the factory and improves the working environment of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of a device; Figure 2 It is one of the steps flow chart of a method; Figure 3 It is the second step flow chart of a method; In the figure: 1. furnace; 2. calender; 3. annealing kiln; 4. raw material mixing device; 401. strong mixer; 402. quantitative feeding mechanism; 5. cutting device; 501. automatic cutting mechanism; 502. automatic breaking mechanism; 6. first defect detection device; 601. length and width detection mechanism; 602. thickness detection mechanism; 603. appearance detection mechanism; 7. first recovery device; 701. guiding mechanism; 702. first crushing mechanism; 703. first transportation mechanism; 8. edge grinding device; 801. edge grinding mechanism; 802. automatic edge and corner detection mechanism; 803. edge grinding cleaning mechanism; 9. first conveying device; 10. second conveying device; 11. third conveying device; 12. screen printing device; 13. coating device. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] In the drawings, the same reference numerals all refer to the same components.

[0018] like Figure 1 As shown, the present invention provides a photovoltaic ultra-white glass production device, comprising a melting furnace 1, a calender 2 and an annealing furnace 3, wherein the melting furnace 1, the calender 2 and the annealing furnace 3 are arranged in sequence, and a first conveying device 9 is arranged between the calender 2 and the annealing furnace 3 for connection; It also includes a raw material mixing device 4, which is arranged at the feeding end of the melting furnace 1 and is used to mix the raw materials for producing glass; The cutting device 5 is provided at the discharge end of the annealing furnace 3 and is used to cut the rolled glass into a suitable size; A first defect detection device 6, used for detecting defects in rolled glass; A second conveying device 10 is used to transport the glass sheet blank, and the cutting device 5 and the first defect detection device 6 are both arranged on the second conveying device 10; A first recovery device 7, for crushing and recovering defective glass; The edge grinding device 8 is used for grinding the edges of the cut glass.

[0019] Furthermore, the raw material mixing device 4 includes a powerful mixer 401, on which a plurality of quantitative feeding mechanisms 402 are arranged. After the silica sand is fed into the powerful mixer 401, appropriate amounts of soda ash, dolomite, limestone, sodium sulfate, aluminum hydroxide and composite clarifier are fed into the powerful mixer 401 as auxiliary materials through the plurality of quantitative feeding mechanisms 402. After the stirring is completed, the raw materials are fed into the melting furnace 1 to be melted into glass liquid.

[0020] In this embodiment, the number of quantitative feeding mechanisms 402 on the intensive mixer 401 is determined by the type of auxiliary materials that need to be added to the intensive mixer 401. The silica sand is fed into the intensive mixer 401 after external weighing, and then the quantitative feeding structure 402 is used to add an appropriate amount of auxiliary materials into the intensive mixer 401 for stirring. After the stirring is completed, the mixture obtained is fed into the furnace 1 for melting.

[0021] Furthermore, the glass liquid in the melting furnace 1 is sent to the calender 2, and the glass liquid is rolled into a glass plate by the calender 2. The rolled glass plate is then sent to the annealing furnace 3 for annealing via the first conveying device 9.

[0022] In this embodiment, the glass liquid is rolled into a glass plate by a rolling machine 2. At this time, the temperature of the glass plate is relatively high and it cannot be processed directly because it is not completely hardened. Therefore, it is necessary to use a first conveying mechanism 9 of the prior art to send the glass plate to an annealing furnace 3 for annealing and cooling, thereby obtaining a glass plate blank. The first conveying mechanism 9 is a roller conveyor.

[0023] Furthermore, the annealed glass plate blank is sent to the cutting device 5, which includes an automatic cutting mechanism 501 and an automatic breaking mechanism 502 which are sequentially arranged on the second conveying device 10. The automatic cutting mechanism 501 cuts the glass plate blank, and then the automatic breaking mechanism 502 breaks the glass plate blank to obtain a glass plate blank of suitable size.

[0024] In this embodiment, the automatic cutting mechanism 501 is divided into two parts: a transverse cutting component and a longitudinal cutting component. The glass plate blank is first cut transversely by the transverse cutting component, and then cut into multiple glass plates of appropriate sizes by the longitudinal cutting component. The cut glass plate is then broken by the automatic breaking mechanism 502 to obtain the original glass plate.

[0025] Furthermore, the original glass plate is sent to a first defect detection device 6, which includes a length and width detection mechanism 601, a thickness detection mechanism 602 and an appearance detection mechanism 603 which are arranged on the second conveying device 10 at the same time. The length and width, thickness and appearance of the original glass plate are detected by the length and width detection mechanism 601, the thickness detection mechanism 602 and the appearance detection mechanism 603, and unqualified original glass plates are recycled.

[0026] In this embodiment, the length and width, thickness and appearance of the original glass plate are inspected in sequence by the length and width inspection mechanism 601, the thickness inspection mechanism 602 and the appearance inspection mechanism 603. The qualified original glass plate is packaged and sold or sent to the edge grinding device 8 for subsequent fine processing, and the unqualified original glass plate is recycled by the first recycling device 7. The second conveying device 10 is a roller conveyor.

[0027] Furthermore, the first recovery device 7 includes a guiding mechanism 701, a first crushing mechanism 702 and a first transporting mechanism 703. The first crushing mechanism 702 and the first transporting mechanism 703 are all arranged under the ground below the second conveying device 10. The feeding end of the first crushing mechanism 702 is arranged at the unloading place of the second conveying mechanism. The first transporting mechanism 703 connects the discharging end of the first crushing mechanism 702 and the feeding end of the furnace 1. The guiding mechanism 701 is arranged at the unloading place of the second conveying mechanism to guide the unqualified glass plate original piece into the first crushing mechanism 702.

[0028] In this embodiment, unqualified glass plate original pieces are poured into the first crushing mechanism 702 through the guide mechanism 701, and after the glass plate is crushed by the first crushing mechanism 702, the glass slag is sent to the melting furnace 1 through the first transport mechanism 703 for melting; The first transport mechanism 703 is a belt conveyor.

[0029] A third conveying device 11 is provided between the edge grinding device 8 and the first recycling device 7 to send qualified glass plate original pieces for edge grinding. The edge grinding device 8 comprises an edge grinding mechanism 801, an automatic edge and corner detection mechanism 802 and an edge grinding cleaning mechanism 803. The glass plate original pieces are edge ground by the edge grinding mechanism 801, and then the edge grinding condition of the glass plate original pieces is detected by the automatic edge and corner detection mechanism 802. Qualified products are sent to the edge grinding cleaning mechanism 803 for cleaning, and unqualified products are discarded.

[0030] In this embodiment, the original glass plate is edged by the edge grinding mechanism 801, and after the edge grinding is completed, it is inspected by the automatic edge detection mechanism 802. The glass plates that pass the inspection are sent to the subsequent processing steps. If the unqualified glass plates can be re-grinded, they are re-grinded by the edge grinding mechanism 801 and then inspected. The unqualified glass plates that cannot be re-grinded are unloaded by a suction cup robot arm or other devices, and this batch of unqualified glass plates is sent to the external second crushing mechanism for crushing by a trolley, such as an AGV trolley, and the glass slag obtained by crushing is sent to the melting furnace 1 for re-melting.

[0031] It also includes a silk-screen device 12 for silk-screening the glass after edge grinding; The device also comprises a coating device 13 for coating the edge-grinded glass.

[0032] like Figure 2 and 3 As shown, a method for producing photovoltaic ultra-white glass comprises the following steps: Step 1: sending silica sand, soda ash, dolomite, limestone, sodium sulfate, aluminum hydroxide and composite clarifier in appropriate proportions into a strong mixer 401 for stirring, and sending the obtained mixture into a melting furnace 1 for melting to obtain glass liquid; Step 2: sending the glass liquid to the calender 2 for calendering, and then sending the calendered glass plate to the annealing furnace 3 for annealing to obtain a glass plate blank; Step 3: The glass plate blank is cut by the automatic cutting mechanism 501 and the automatic breaking mechanism 502 to obtain a glass plate original piece of appropriate size; Step 4: The original glass plate is tested by the length and width detection mechanism 601, the thickness detection mechanism 602 and the appearance detection mechanism 603 to be qualified. The qualified original glass plate is packaged and sold or finely processed, and the unqualified original glass plate is sent to the first recycling device 7 for recycling; Step 5: The unqualified glass plate original piece is sent to the crushing mechanism by the guide mechanism 701 for crushing, and the crushed glass slag is sent to the melting furnace 1 through the first transport mechanism 703 for melting to obtain glass liquid; Step 6: The original glass plate is edged by the edge grinding mechanism 801, and is tested by the automatic edge detection mechanism 802 to see if it is qualified. Qualified products are processed later, and unqualified products are recycled and reused.

[0033] The following steps are also included: Coating, coating the glass plate after edge grinding by means of a coating device 13; Silk screen printing, using a silk screen printing device 12 to print the edge-grinded glass plate; Tempering: tempering the glass plate after coating or silk-screen printing; Inspection: Finished products are inspected on the tempered glass panels, qualified products are packaged, and unqualified products are recycled and reused.

[0034] In this embodiment, qualified glass plates are packaged and sent to a warehouse to wait for shipment, and the batch of unqualified glass plates is sent to an external second crushing mechanism for crushing by a trolley, such as an AGV trolley, and the crushed glass slag is sent to the melting furnace 1 for remelting.

[0035] The present invention relates to a production device and method for photovoltaic ultra-white glass. The equipment layout of the present invention is more reasonable. By arranging a first recovery mechanism below the ground, compared with arranging a recovery mechanism on the ground, the space occupied on the factory floor can be reduced. Moreover, crushing the glass below the ground can effectively prevent glass fragments generated by the broken glass from splashing or floating in the air, which not only improves the efficiency of glass recycling, but also reduces the impact on the environment in the factory, and improves the working environment of the workers.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic ultra-white glass production equipment, characterized in that: The invention comprises a melting furnace (1), a calender (2) and an annealing kiln (3), wherein the melting furnace (1), the calender (2) and the annealing kiln (3) are arranged in sequence, and a first conveying device (9) is arranged between the calender (2) and the annealing kiln (3) for connection; It also includes a raw material mixing device (4), which is arranged at the feeding end of the melting furnace (1) and is used to mix the raw materials for producing glass; A cutting device (5), arranged at the discharge end of the annealing furnace (3), for cutting the rolled glass into a suitable size; A first defect detection device (6) is used to detect defects on the rolled glass; A second conveying device (10) for conveying the glass plate blank, wherein the cutting device (5) and the first defect detection device (6) are both arranged on the second conveying device (10); A first recovery device (7) for crushing and recovering defective glass; The edge grinding device (8) is used for grinding the edges of the cut glass.

2. The photovoltaic ultra-white glass production equipment according to claim 1, characterized in that: The raw material mixing device (4) comprises a powerful mixer (401), and a plurality of quantitative feeding mechanisms (402) are arranged on the powerful mixer (401). After the silica sand is fed into the powerful mixer (401), appropriate amounts of soda ash, dolomite, limestone, sodium sulfate, aluminum hydroxide and composite clarifier are fed into the powerful mixer (401) through the plurality of quantitative feeding mechanisms (402) as auxiliary materials. After the stirring is completed, the raw materials are fed into the melting furnace (1) to be melted into glass liquid.

3. The production equipment of photovoltaic ultra-white glass according to claim 1, characterized in that: The glass liquid in the melting furnace (1) is sent to the calender (2), and the glass liquid is rolled into a glass plate by the calender (2). The rolled glass plate is then sent to the annealing furnace (3) for annealing via the first conveying device (9).

4. The photovoltaic ultra-white glass production equipment according to claim 1, characterized in that: The annealed glass plate blank is sent to the cutting device (5), which comprises an automatic cutting mechanism (501) and an automatic breaking mechanism (502) which are sequentially arranged on the second conveying device (10), wherein the automatic cutting mechanism (501) cuts the glass plate blank, and then the automatic breaking mechanism (502) breaks the glass plate blank to obtain a glass plate blank of suitable size.

5. The photovoltaic ultra-white glass production equipment according to claim 1, characterized in that: The original glass plate is sent to the first defect detection device (6), which includes a length and width detection mechanism (601), a thickness detection mechanism (602) and an appearance detection mechanism (603) which are arranged on the second conveying device (10) at the same time. The length and width, thickness and appearance of the original glass plate are detected by the length and width detection mechanism (601), the thickness detection mechanism (602) and the appearance detection mechanism (603), and unqualified original glass plates are recycled.

6. The photovoltaic ultra-white glass production equipment according to claim 1, characterized in that: The first recovery device (7) comprises a guiding mechanism (701), a first crushing mechanism (702) and a first transporting mechanism (703); the first crushing mechanism (702) and the first transporting mechanism (703) are both arranged under the ground below the second conveying device (10); the feeding end of the first crushing mechanism (702) is arranged at the unloading place of the second conveying mechanism; the first transporting mechanism (703) connects the discharging end of the first crushing mechanism (702) and the feeding end of the melting furnace (1); the guiding mechanism (701) is arranged at the unloading place of the second conveying mechanism to guide unqualified glass plate original pieces into the first crushing mechanism (702).

7. The photovoltaic ultra-white glass production equipment according to claim 1, characterized in that: A third conveying device (11) is provided between the edge grinding device (8) and the first recycling device (7) to send qualified glass plate original sheets to edge grinding. The edge grinding device (8) comprises an edge grinding mechanism (801), an automatic edge and corner detection mechanism (802) and an edge grinding cleaning mechanism (803). The glass plate original sheets are edge ground by the edge grinding mechanism (801), and then the edge grinding condition of the glass plate original sheets is detected by the automatic edge and corner detection mechanism (802). Qualified products are sent to the edge grinding cleaning mechanism (803) for cleaning, and unqualified products are discarded.

8. The photovoltaic ultra-white glass production equipment according to claim 1, characterized in that: The invention also includes a silk screen printing device (12) for silk screen printing on the glass after edge grinding; The invention also includes a coating device (13) for coating the edge-grinded glass.

9. A method for producing photovoltaic ultra-white glass, characterized in that: The following steps are involved: Step 1: feeding silica sand, soda ash, dolomite, limestone, sodium sulfate, aluminum hydroxide and composite clarifier in appropriate proportions into the intensive mixer (401) for stirring, and feeding the obtained mixture into the melting furnace (1) for melting to obtain glass liquid; Step 2, sending the molten glass to the calender (2) for calendering, and then sending the glass plate obtained by calendering to the annealing furnace (3) for annealing to obtain a glass plate blank; Step 3: The glass plate blank is processed by the automatic cutting mechanism (501) and the automatic breaking mechanism (502) to obtain a glass plate original piece of appropriate size; Step 4: the original glass plate is inspected and tested by the length and width inspection mechanism (601), the thickness inspection mechanism (602) and the appearance inspection mechanism (603) to be qualified. The qualified original glass plate is packaged and sold or finely processed, and the unqualified original glass plate is sent to the first recycling device (7) for recycling; Step 5: The unqualified glass plate original piece is sent to the crushing mechanism by the guide mechanism (701) for crushing, and the crushed glass slag is sent to the melting furnace (1) through the first transport mechanism (703) for melting to obtain glass liquid; Step 6: The original glass plate is edged by the edge grinding mechanism (801), and is tested by the automatic edge detection mechanism (802) to see if it is qualified. Qualified products are processed later, and unqualified products are recycled and reused.

10. The method for producing photovoltaic ultra-white glass according to claim 1, characterized in that: The following steps are also included: Coating, coating the glass plate after edge grinding by means of a coating device (13); Silk screen printing, performing silk screen printing on the glass plate after edge grinding by means of a silk screen printing device (12); Tempering: tempering the glass plate after coating or silk-screen printing; Inspection: Finished products are inspected on the tempered glass panels, qualified products are packaged, and unqualified products are recycled and reused.

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