Photovoltaic glass raw material distributing device and photovoltaic glass melting equipment

Abstract

The utility model provides a photovoltaic glass raw material distributing device and photovoltaic glass melting equipment. The photovoltaic glass raw material distributing device comprises a feeding hopper; the top of the stirring bin is communicated with the bottom of the feeding hopper; the rotating shaft horizontally extends in the stirring bin, and spiral blades are arranged on the periphery of the rotating shaft; an inlet of the material distribution pipe is communicated with the bottom of the stirring bin; wherein the number of the material distribution pipes is at least two, inlets of the material distribution pipes are distributed at intervals in the axial direction of the rotating shaft, and outlets of the material distribution pipes are distributed at intervals in the horizontal direction. The material distributing device can continuously stir photovoltaic glass production raw materials entering the stirring bin along the feeding hopper under the action of the rotating shaft, and the fully mixed photovoltaic glass production raw materials are further evenly distributed in the glass smelting furnace through more than two material distributing pipes.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of photovoltaic glass, and in particular to a photovoltaic glass raw material distribution device and a photovoltaic glass melting equipment comprising the same. BACKGROUND

[0002] Photovoltaic glass is a kind of special glass, which is mainly used as the outer packaging material of solar cell modules, can generate electricity by using solar radiation, and has related current leading devices and cables. The production requirements of photovoltaic glass include high light transmittance, low thermal radiation absorption, low light reflectance, excellent chemical stability, high strength mechanical properties, and low melting defects, among which the realization of low melting defects especially needs to ensure the uniform distribution of photovoltaic glass raw materials in the melting process of photovoltaic glass.

[0003] However, the existing photovoltaic glass generally has the problem of uneven distribution of raw materials in the melting process (for example, CN219689583U), and thus causes a series of quality problems, for example, uneven distribution of raw materials will cause inconsistent glass liquid temperature in different areas of the melting furnace, forming a large temperature gradient, affecting the melting and refining effect of the glass liquid; again, for example, uneven distribution of raw materials will cause uneven melting, so that the chemical composition and physical properties of the glass liquid are inconsistent, thereby affecting the optical performance and mechanical strength of the photovoltaic glass. In summary, the uniformity of raw material distribution is crucial to the melting quality of photovoltaic glass, and will directly affect the final performance of photovoltaic glass and the quality of the product.

[0004] Therefore, how to improve the uniformity of raw material distribution in the melting process of photovoltaic glass to realize the production requirements of low melting defects of photovoltaic glass finished products is the direction of current technical progress. Invention content

[0005] One of the technical problems to be solved by the present disclosure is that the production raw materials of photovoltaic glass are unevenly distributed in the glass melting furnace.

[0006] To solve the above technical problems, the present disclosure provides a photovoltaic glass raw material distribution device, which comprises a feeding hopper, a stirring bin, a rotating shaft, and a distribution pipe.

[0007] In some embodiments, the horizontal spacing of the outlets of the distribution pipes is greater than the horizontal spacing of the inlets.

[0008] In some embodiments, the feeding hopper comprises two or more discharge channels, the discharge channels are equal in number to the distribution pipes, and the outlets of the discharge channels are arranged one-to-one with the inlets of the distribution pipes.

[0009] In some embodiments, the rotating shaft part is located outside the stirring bin and is connected to the driving member.

[0010] In some embodiments, the driving member is an electric motor.

[0011] In some embodiments, a support assembly is included for supporting the feeding hopper and the driving member.

[0012] In some embodiments, the support assembly comprises four vertical rods and L-shaped plates, the four vertical rods are respectively fixedly connected to four corners of the feeding hopper, the L-shaped plates are supported on adjacent two vertical rods, and the driving member is supported on the L-shaped plates.

[0013] In some embodiments, the support assembly comprises four horizontal rods, the horizontal rods are used to connect adjacent vertical rods.

[0014] In some embodiments, the feeding hopper, the stirring bin, the distribution pipes, the vertical rods, and the horizontal rods are of an integrated structure.

[0015] Another aspect of the embodiments of the present disclosure provides a photovoltaic glass melting device, which comprises a glass melting furnace and a distribution device.

[0016] Through the above technical solution, the distribution device provided by the present disclosure can continuously stir the photovoltaic glass production raw materials entering the inside of the stirring bin from the feeding hopper under the action of the rotating shaft, and further uniformly distribute the fully mixed photovoltaic glass production raw materials in the glass melting furnace through two or more distribution pipes. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic diagram of the overall structure of the distribution device disclosed by the embodiments of the present disclosure;

[0019] Figure 2 is a schematic diagram of the front view structure of the distribution device disclosed by the embodiments of the present disclosure;

[0020] Figure 3 is a schematic diagram of the side view structure of the distribution device disclosed by the embodiments of the present disclosure;

[0021] Figure 4 is a bottom structure schematic diagram of the material distribution device disclosed by the embodiments of the present disclosure.

[0022] Explanation of reference signs:

[0023] 1, feeding hopper; 11, discharging channel; 2, stirring bin; 3, rotating shaft; 4, material distribution pipe; 51, motor; 61, vertical rod; 62, L-shaped plate; 63, horizontal rod DETAILED DESCRIPTION

[0024] The embodiments of the present disclosure are further described in detail below with reference to the drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0025] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0026] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0028] It should be noted that, in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0029] All the terms used in the present disclosure have the same meanings as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that the terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise defined explicitly herein.

[0030] The techniques, methods, and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods, and devices should be considered as part of the specification.

[0031] As shown in Figures 1-4 The present disclosure provides a material distributing device for raw materials of photovoltaic glass, which comprises: a feeding hopper 1; a stirring bin 2, the top of the stirring bin being in communication with the bottom of the feeding hopper; a rotating shaft 3, which extends horizontally in the stirring bin and is provided with helical blades on the outer periphery; and material distributing pipes 4, the inlets of which are in communication with the bottom of the stirring bin 2; wherein the material distributing pipes 4 are provided at least in two, the inlets of the material distributing pipes 4 are distributed along the axial direction of the rotating shaft, and the outlets of the material distributing pipes 4 are distributed along the horizontal direction.

[0032] Specifically, the material distributing device is located above the glass melting furnace, and its function is to uniformly distribute the crushed photovoltaic glass raw materials (the photovoltaic glass raw materials are mixed materials, in which the main raw material is quartz sand, and in addition, there are feldspar as a fluxing agent, mirabilite as a fining agent, etc.) in the glass melting furnace.

[0033] The top, two sides and bottom of the stirring bin 2 are formed with openings, and the purposes of the openings are as follows: the top opening corresponds to the bottom outlet of the feeding hopper 1 to receive the photovoltaic glass raw materials in the feeding hopper 1; the two side openings are large and small, and the large opening area must be sufficient to accommodate the profile circle of the spiral blade, that is, the projection of the spiral blade on the plane perpendicular to the shaft forms a circle, so that the shaft 3 with the spiral blade can be easily disassembled and installed inside the stirring bin 2; the small opening area should be slightly larger than the cross-sectional area of the shaft diameter of the shaft 3, that is, the radial cross-sectional area of the shaft itself, so that the shaft end of the shaft 3 can smoothly pass out of the inside of the stirring bin 2 and be connected with other structures such as the output end of the rotating drive outside, thereby facilitating the rotation of the shaft 3; and the bottom opening corresponds to the inlet of the distribution pipe 4 and has the same number as the distribution pipe 4 (at least two) to achieve multi-point distribution of the stirred photovoltaic glass raw materials.

[0034] The shaft 3 and the spiral blade arranged on the outer periphery thereof push the photovoltaic glass raw materials in the axial direction during rotation to ensure uniform distribution of the photovoltaic glass raw materials in the axial direction. The arrangement of the shaft 3 and the spiral blade not only improves the stirring efficiency, ensures the consistency and quality control of the photovoltaic glass raw materials during production, but also effectively avoids the stratification or segregation of the materials that may occur during the feeding process of the feeding hopper 1, ensuring uniform mixing and continuous flow of the photovoltaic glass raw materials. If the photovoltaic glass raw materials are stratified and not stirred, there will be a large difference in the photovoltaic glass raw materials entering the inlets of the distribution pipes 4, for example, some distribution pipes 4 receive photovoltaic glass raw materials with a large proportion of flux, while other distribution pipes 4 receive photovoltaic glass raw materials with a small proportion of flux. Even if the positions of the outlets of the distribution pipes 4 relative to the glass furnace are preset, it is still impossible to achieve uniform distribution of the photovoltaic glass raw materials in the glass furnace. In short, the shaft 3 and the spiral blade arranged on the outer periphery thereof are used to ensure uniform distribution of the photovoltaic glass raw materials before entering the furnace. Further, during rotation, the spiral blade disperses and mixes the photovoltaic glass raw material particles through friction, impact and shearing, and pushes the photovoltaic glass raw materials towards the inlets of the distribution pipes 4.

[0035] The distribution pipe 4 is used to receive, guide and transport the stirred photovoltaic glass raw materials. As shown in Figure 2 , the inlets of the plurality of distribution pipes 4 are uniformly distributed at the bottom of the stirring bin 2 to uniformly receive the stirred photovoltaic glass raw materials; as shown in Figure 3 , the outlets of the plurality of distribution pipes 4 are located at the same height above the glass furnace and are uniformly distributed relative to the upper surface of the glass furnace to uniformly transport the stirred photovoltaic glass raw materials.

[0036] The working process of the distributing device is as follows: the photovoltaic glass raw materials are put into the feeding hopper 1, and then enter the inside of the stirring bin 2 through the top opening of the stirring bin 2 and are uniformly mixed by the rotation of the rotating shaft 3 and the peripheral wall blades. The mixed photovoltaic glass raw materials further enter the distributing pipes 4 through the bottom opening of the stirring bin 2 and are finally guided to the corresponding area of the glass furnace by the outlet of the distributing pipes 4.

[0037] In some embodiments, the horizontal spacing of the outlets of the distributing pipes 4 is greater than the horizontal spacing of the inlets. Specifically, the horizontal spacing of the outlets of the distributing pipes 4 and the horizontal spacing of the inlets of the distributing pipes 4 need to be determined according to the actual shape and size of the glass furnace, and finally the outlets of the distributing pipes 4 are uniformly distributed above the glass furnace.

[0038] In some embodiments, the feeding hopper 1 includes two or more discharge channels 11, and the number of the discharge channels 11 is equal to the number of the distributing pipes 4, and the outlets of the discharge channels 11 are one-to-one corresponding to the inlets of the distributing pipes 4.

[0039] Specifically, the corresponding arrangement of the discharge channels 11 according to the distributing pipes 4 is beneficial to ensure that the inlets of the distributing pipes 4 receive the same amount of photovoltaic glass raw materials. The corresponding relationship includes that the outlet area of the discharge channel 11 is approximately equal to the inlet area of the distributing pipe 4, and the discharge channel 11 is arranged directly above the distributing pipe 4. Further, the plurality of discharge channels 11 can be arranged to be not communicated with each other. In this way, the raw material ratio can be prepared in advance when feeding the feeding hopper 1, so that the inlets of the distributing pipes 4 can receive the same amount of photovoltaic glass raw materials. Figure 2 For example, the photovoltaic glass raw materials can be divided into two equal parts in advance and put into the left and right discharge channels 11 respectively. The photovoltaic glass raw materials output by the left discharge channel 11 are stirred and mixed in the stirring bin 2 and continue to enter the inlet of the left distributing pipe 4. Similarly, the photovoltaic glass raw materials output by the right discharge channel 11 are also received by the inlet of the right distributing pipe 4 as much as possible, because there is a spacing distance between the adjacent distributing pipes 4 in the axial direction of the rotating shaft 3, so that the mutual interference between the combination of the left discharge channel 11 and the distributing pipe 4 and the combination of the right discharge channel 11 and the distributing pipe 4 is avoided to some extent.

[0040] In some embodiments, the rotating shaft 3 is partially located outside the stirring bin 2 and is connected with a driving member. Specifically, the arrangement of the driving member is beneficial to improve the automation degree of the distributing device. The output end of the driving member can be connected with the shaft end of the rotating shaft 3 outside the stirring bin 2 through a shaft coupling to realize the synchronous rotation of the two.

[0041] In some embodiments, the driving component is a motor 51. Specifically, the motor 51 is chosen as the driving component mainly considering the overall working space of the fabric-laying device. The motor 51 is typically small in size and light in weight, making it suitable for space-constrained applications, and its maintenance is relatively simple. Of course, the motor 51 is not essential; other suitable driving components, such as hydraulic or pneumatic motors, can be selected when environmental conditions change or other related devices are improved.

[0042] In some embodiments, a support assembly is included to support the feeding hopper 1 and the drive component. Specifically, the support assembly supports both the feeding hopper 1 and the drive component, which can improve the integration of various components of the fabric spreading device, optimize space utilization, and make the entire device more compact; moreover, it can also enhance the overall structural stability of the fabric spreading device and improve the reliability of the fabric spreading device during operation.

[0043] In some embodiments, the support assembly includes four vertical rods 61 and an L-shaped plate 62. The four vertical rods 61 are fixedly connected to the four corners of the feeding hopper 1, and the L-shaped plate 62 is supported by two adjacent vertical rods 61. The driving component is supported by the L-shaped plate 62.

[0044] like Figure 1 and Figure 4 As shown, the four vertical rods 61 ensure effective support for the feeding hopper 1 and the L-shaped plate 62. Specifically, as... Figure 1 As shown, the feeding hopper 1 is a rectangular hopper that makes it easier to securely connect the vertical rods 61. Two vertical rods 61 connected to both the feeding hopper 1 and the L-shaped plate 62 form the first vertical rod group, and two more vertical rods 61 form the second vertical rod group. The two vertical rod groups are located on opposite sides of the glass furnace (not shown in the figure) and are both fixed to the ground. Since the two vertical rods 61 belonging to the same vertical rod group are located on the same outer side of the glass furnace, they do not need to span the glass furnace when fixed to the ground, allowing for a more spacious and relatively compact arrangement in terms of spacing. To further strengthen the support, six or more even-numbered vertical rods 61 can be provided. Furthermore, the L-shaped plate 62 does not necessarily have to be supported by the vertical rods 61; it can also be supported by a wall or other structure.

[0045] In some embodiments, the support assembly includes four crossbars 63 for connecting adjacent vertical bars 61. Specifically, the crossbars 63 are used to enhance the stability of the vertical bars 61, and the number of crossbars 63 can be adjusted according to the number of vertical bars 61.

[0046] In some embodiments, the feeding hopper 1, mixing chamber 2, material distribution pipe 4, vertical rod 61, and horizontal rod 63 are an integral structure.

[0047] The integral structure is beneficial to enhancing the stability of the cloth device as a whole. Specifically, the feeding hopper 1, the stirring bin 2, the cloth pipe 4, the vertical rod 61 and the horizontal rod 63 can be welded together. Considering that detachably arranging the L-shaped plate 62 and the driving member is more beneficial to maintenance, replacement, adjustment of the fixed position and the like, the driving member can be bolted to the horizontal surface of the L-shaped plate 62, and the vertical surface of the L-shaped plate 62 is bolted to the vertical rod 61.

[0048] Another aspect of the present disclosure provides a photovoltaic glass melting device, which comprises a glass melting furnace and a cloth device. Specifically, the cloth pipes 4 are uniformly distributed above the glass melting furnace.

[0049] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0050] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A spreader for photovoltaic glass stock, characterized in that, The device comprises: a feeding hopper (1); a stirring bin (2) whose top is communicated with the bottom of the feeding hopper (1); a rotating shaft (3) extending horizontally in the stirring bin (2) and provided with spiral blades on the outer periphery; and a material pipe (4) whose inlet is communicated with the bottom of the stirring bin (2); wherein the material pipe (4) is provided with at least two, the inlets of the material pipe (4) are spaced along the axial direction of the rotating shaft, and the outlets of the material pipe (4) are spaced along the horizontal direction.

2. The apparatus for distributing photovoltaic glass feedstock according to claim 1, wherein, The horizontal spacing of the outlets of the material pipe (4) is greater than that of the inlets.

3. The apparatus of claim 1, wherein the apparatus is configured to feed the photovoltaic glass material in a manner that the photovoltaic glass material is fed in a direction that is substantially perpendicular to a direction in which the photovoltaic glass material is conveyed. The feeding hopper (1) comprises two or more discharge channels (11), the number of the discharge channels (11) is equal to that of the material pipe (4), and the outlets of the discharge channels (11) are one-to-one corresponding to the inlets of the material pipe (4).

4. The apparatus of claim 1, wherein, The rotating shaft (3) is partially located outside the stirring bin (2) and connected with a driving member.

5. The apparatus of claim 4, wherein the apparatus is configured to feed the photovoltaic glass material in a manner such that the photovoltaic glass material is fed in a direction that is substantially parallel to the direction of the flow of the molten glass. The driving member is an electric motor (51).

6. The apparatus of claim 4, wherein the apparatus is configured to feed the photovoltaic glass material in a manner that the photovoltaic glass material is fed in a direction that is substantially perpendicular to the direction of the conveyance of the glass sheet. The device comprises a support assembly for supporting the feeding hopper (1) and the driving member.

7. The spreader of photovoltaic glass stock material according to claim 6, characterized in that, The support assembly comprises vertical rods (61) and L-shaped plates (62), the vertical rods (61) are four in number and are respectively fixedly connected to four corners of the feeding hopper (1), the L-shaped plates (62) are supported on two adjacent vertical rods (61), and the driving member is supported on the L-shaped plates (62).

8. The spreader of photovoltaic glass stock material according to claim 7, characterized in that, The support assembly comprises four horizontal rods (63) for connecting adjacent vertical rods (61).

9. The spreader of photovoltaic glass stock material according to claim 8, characterized in that, The feeding hopper (1), the stirring bin (2), the material pipe (4), the vertical rods (61) and the horizontal rods (63) are of an integral structure.

10. A photovoltaic glass melting apparatus, characterized by, The device comprises a glass melting furnace and the material distribution device according to any one of claims 1-9.

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