Cover plate brick assembly and molten glass conveying device

Abstract

The utility model relates to the technical field of glass processing, and particularly provides a cover plate brick assembly and a molten glass conveying device. The cover plate brick assembly comprises a cover plate and a heating piece. The cover plate is used for being buckled to the open end of the base. The heating piece comprises a plurality of heating single body groups, the plurality of heating single body groups are arranged at intervals in the direction perpendicular to the forming direction of the flow channel, and each heating single body group comprises at least one heating single body; the end, extending out of the cover plate, of each heating single body is connected with a control circuit used for controlling whether the heating single bodies are heated or not. According to the cover plate brick assembly provided by the invention, the temperature condition of the molten glass in the runner is judged according to the brightness condition of the plate surface stripes appearing on the finished glass sheet, and the molten glass at a low-temperature position can be heated through the corresponding heating monomers, so that the temperature of the molten glass conveyed in the runner is uniform; and the temperature difference of the molten glass entering the tin bath is reduced, so that the influence of stripes on finished glass can be reduced, and the optical uniformity of showering is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of glass processing, and in particular to a cover brick assembly and a glass liquid conveying device. Background Art

[0002] As the proportion of high-aluminum glass used in high-end new energy vehicle glass increases year by year, the quality requirements for glass blanks have been significantly improved. In particular, the zebra angle test is the most critical quality indicator of the optical performance of automotive glass blanks. The management of high-aluminum silicate glass raw materials and melting process systems is extremely strict, but the inherent uniformity of the glass liquid flow still affects "processing and assembly", zebra angle, refractive power (testing at three angles of 0°, 50°, and 130°), and uniformity of the shower.

[0003] Research has revealed that the shower uniformity issue is actually due to diopter distortion, a localized microlensing effect caused by chemical and temperature inhomogeneities in the glass. Adjustments to the runner temperature revealed that the current flow system for delivering molten glass results in uneven temperature. The confluence of the glass streams creates temperature differences in the molten glass flowing into the tin bath, which in turn affects streaks and shower uniformity. Utility Model Content

[0004] A technical problem to be solved by the present disclosure is that the current flow channel method of conveying molten glass causes uneven temperature of the molten glass. The merging of the molten glass flows causes temperature differences in the molten glass flowing into the tin bath, thereby affecting the uniformity of stripes and showering.

[0005] To solve the above technical problems, the present disclosure provides an open end of a base for snapping onto a glass liquid conveying device. The base is provided with a flow channel for the glass liquid to flow. The cover brick assembly includes:

[0006] a cover plate adapted to snap onto the open end of the base; and

[0007] The heating element includes a plurality of heating unit groups provided on the cover plate, the plurality of heating unit groups are arranged at intervals along a direction perpendicular to the opening of the flow channel, each heating unit group includes at least one heating unit, one end of the heating unit extends into the base to heat the glass liquid at a corresponding position, and the other end of the heating unit extends out of the cover plate in a direction away from the base;

[0008] One end of each heating unit extending out of the cover plate is respectively connected to a control circuit for controlling whether the heating unit is heated.

[0009] In some embodiments, each heating unit group includes a plurality of heating units, and the plurality of heating units are arranged at intervals along the direction in which the flow channel is opened.

[0010] In some embodiments, the cover plate brick assembly further includes a plurality of fixing members disposed on the cover plate, the plurality of fixing members corresponding one-to-one to the plurality of heating units, and the fixing members are used to fix the corresponding heating units.

[0011] In some embodiments, the fixing member includes a fixing clip disposed on the cover plate, the fixing clip is provided with a clip hole for the heating unit to pass through, and the heating unit passing through the clip hole can be locked by the locking member.

[0012] In some embodiments, one side of the fixing clip is open, and a first locking plate and a second locking plate are respectively provided on both sides of the opening of the fixing clip. The locking member includes a bolt and a nut. The bolt passes through the first locking plate and the second locking plate, and the nut of the bolt is fixedly connected to the first locking plate. The part of the bolt passing through the second locking plate is provided with a nut.

[0013] In some embodiments, the cover brick assembly further includes a plurality of temperature detection members disposed on the cover, the temperature detection members being used to detect the temperature of the glass liquid at corresponding positions;

[0014] Wherein, a temperature detection component is provided on the side of each heating unit.

[0015] In some embodiments, the temperature detecting element includes a thermocouple passing through the cover plate.

[0016] In some embodiments, the heating unit includes a silicon-molybdenum rod passing through the cover plate.

[0017] In some embodiments, the cover bricks are made of sillimanite.

[0018] The present disclosure also provides a glass liquid conveying device, comprising:

[0019] A base is provided with a flow channel for the glass liquid to flow, and the top of the base is open; and

[0020] The above-mentioned cover brick assembly;

[0021] The cover brick assembly is buckled onto the open end of the base.

[0022] Through the above technical solution, the cover brick assembly provided by the present invention can judge the temperature of the glass liquid in the flow channel according to the brightness of the stripes on the surface of the finished glass sheet, and can heat the glass liquid at a lower temperature position through the corresponding heating unit, so that the temperature of the glass liquid transported in the flow channel is uniform, reducing the temperature difference of the glass liquid entering the tin bath, thereby reducing the impact of the stripes on the finished glass and improving the optical uniformity of the shower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a structural diagram of the cover brick assembly disclosed in the embodiment of the present disclosure in a use state;

[0025] Figure 2 It is a top view of the cover plate disclosed in the embodiment of the present disclosure.

[0026] Description of reference numerals:

[0027] 1. Base; 2. Cover; 3. Heating element; 31. Heating unit; 4. Control cabinet; 5. Wire. DETAILED DESCRIPTION

[0028] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0029] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0030] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0032] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0033] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0035] Combine Figure 1 and Figure 2As shown, an embodiment of the present disclosure provides a cover plate brick assembly, which is used to snap onto the open end of a base 1 of a glass liquid conveying device. The base 1 is provided with a flow channel for the glass liquid to flow, and the glass liquid flowing out of the flow channel enters the tin bath. The cover plate brick assembly includes a cover plate 2 and a heating element 3. The cover plate 2 is used to snap onto the open end of the base 1. That is, the shape of the cover plate 2 matches the shape of the open end of the base 1 so that the cover plate 2 can snap onto the open end of the base 1 tightly. The heating element 3 includes a plurality of heating unit groups provided on the cover plate 2. The plurality of heating unit groups are arranged at intervals along the direction perpendicular to the opening of the flow channel. Each heating unit group includes at least one heating unit 31. One end of the heating unit 31 extends into the base 1 to heat the glass liquid at the corresponding position. That is, after the cover plate 2 is buckled onto the open end of the base 1, the end of the heating unit 31 is located above the liquid level of the glass liquid and has a certain distance from the liquid level of the glass liquid to avoid affecting the flow of the glass liquid. At the same time, it can heat the glass liquid at the corresponding position. The other end of the heating unit 31 extends out of the cover plate 2 in a direction away from the base 1.

[0036] Among them, one end of each heating unit 31 extending from the cover plate 2 is connected to a control circuit for controlling whether the heating unit 31 is heated, so that each control circuit controls whether the corresponding heating unit 31 is heated to adjust the temperature of the glass liquid at different positions along the direction perpendicular to the flow channel. Compared with the series-parallel connection of multiple heating units 31, the mutual interference between the multiple heating units 31 when using or replacing the heating units 31 can be reduced. Specifically, one end of the heating unit 31 extending from the cover plate 2 is connected to the control cabinet 4 through a wire 5. The control cabinet 4 is provided with a control unit. The control unit can be connected to the corresponding heating unit 31 circuit through multiple control circuits to independently provide corresponding voltage and current to the multiple heating units 31, compensate for the heat in the flow channel, heat the bright streak area that is generally considered to be caused by low glass liquid flow, increase the temperature of this area, make the glass more uniform in temperature, and reduce the defective streaks. This independent control method of the heating units 31 is a conventional technology in the field, and its working principle is not described in detail here. Among them, the control cabinet 4 is a transformer control cabinet 4, which uses a power of 30-50KW and converts the 380V voltage into a low voltage of 50-100V, which is connected to the heating unit 31 through the wire 5, specifically the silicon molybdenum rod described below.

[0037] The cover brick assembly provided by the present invention can judge the temperature of the glass liquid in the flow channel according to the brightness of the stripes on the surface of the finished glass sheet, and can heat the glass liquid at a lower temperature position through the corresponding heating unit 31, so that the temperature of the glass liquid transported in the flow channel is uniform, and the temperature difference of the glass liquid entering the tin bath is reduced, thereby reducing the impact of the stripes on the finished glass and improving the optical uniformity of the shower.

[0038] In some embodiments, each heating unit group includes a plurality of heating units 31 , and the plurality of heating units 31 are arranged at intervals along the direction in which the flow channel is opened.

[0039] In this design, the corresponding glass liquid can be heated along the direction of the flow channel by multiple heating units 31, thereby ensuring the heating effect and heating speed of the glass liquid during the flow process.

[0040] In some embodiments, the cover plate brick assembly further includes a plurality of fixing members disposed on the cover plate 2 , the plurality of fixing members corresponding one-to-one to the plurality of heating units 31 , and the fixing members are used to fix the corresponding heating units 31 .

[0041] With this design, the corresponding heating unit 31 can be fixed by the fixing piece, thereby ensuring the fixing effect of the heating unit 31. At the same time, it is easy to replace the heating unit 31, thereby increasing the convenience of use.

[0042] In some embodiments, the fixing member includes a fixing clip disposed on the cover plate 2 , and the fixing clip is provided with a clip hole for the heating unit 31 to pass through. The heating unit 31 passing through the clip hole can be locked by a locking member.

[0043] With this design, during installation, the heater unit 31 passes through the clamping hole and is locked by the locking member to maintain its position, making operation convenient. Furthermore, the vertical position of the heater unit 31 can be adjusted by unlocking and unlocking the locking member, thereby changing the distance between the end of the heater unit 31 and the liquid glass surface. The heater unit 31 can then be locked again by the locking member, facilitating adjustment of the vertical position of the heater unit 31.

[0044] In some embodiments, one side of the fixing clip is open, and a first locking plate and a second locking plate are respectively provided on both sides of the opening of the fixing clip. The locking member includes a bolt and a nut. The bolt passes through the first locking plate and the second locking plate, and the nut of the bolt is fixedly connected to the first locking plate. The part of the bolt passing through the second locking plate is provided with a nut.

[0045] Specifically, the retaining clamp is C-shaped, and the diameter of the clamping hole is slightly smaller than that of the heater 31. This allows the heater 31 to be inserted into the clamping hole and open, leaving a certain distance between the first and second locking plates. As the nut is tightened, it gradually pushes the second locking plate toward the first, allowing the retaining clamp to clamp onto the outer periphery of the heater 31. This design enhances ease of operation and ensures a secure grip on the heater 31.

[0046] In some embodiments, the retaining clip is annular in structure, with a clamping hole formed inside the retaining clip. The diameter of the heating element 31 should be slightly smaller than the diameter of the clamping hole to allow the heating element 31 to be inserted into the clamping hole. In this case, a screw hole is provided through the side of the retaining clip, and a bolt is passed through the screw hole. By tightening the bolt, the end of the bolt is tightened against the side of the heating element 31 to secure the heating element 31, which is convenient to operate.

[0047] In some embodiments, the cover brick assembly also includes a plurality of temperature detection members passed through the cover 2, and the temperature detection members are used to detect the temperature of the glass liquid at the corresponding position; wherein, a temperature detection member is provided on the side of each heating unit 31, that is, the plurality of temperature detection members are arranged at intervals along a direction perpendicular to the conveying direction of the glass liquid.

[0048] Under this design, the temperature of the glass liquid at the corresponding position can be detected by the temperature detection component, and the detected temperature information is fed back to the control unit. After the control unit receives the temperature information fed back by multiple temperature detection components, it sends a temperature compensation signal according to the temperature difference of the temperature information at different positions of the glass liquid, and controls the corresponding heating unit 31 to heat through the corresponding control circuit. The heating unit 31 heats the glass liquid at the corresponding position to achieve temperature compensation, and when the temperature of multiple positions of the glass liquid is consistent or the temperature difference is within a certain range, the heating is stopped to make the temperature at each position of the glass liquid uniform, further reducing the temperature difference of the transported glass liquid. Among them, the method of temperature feedback and adjustment to achieve temperature compensation is a conventional technology in this field, and its working principle is not described in detail here.

[0049] In some embodiments, the cover brick assembly further includes a display unit, wherein the regulated current and voltage, compensated heat, and temperature are directly fed back to a display interface of the display unit for easy visual observation.

[0050] In some embodiments, the temperature sensing element includes a thermocouple disposed on the cover plate 2. Thermocouples are commonly used temperature measuring components in temperature measuring instruments. They directly measure temperature and convert the temperature signal into a thermoelectromotive force signal, which is then converted into the temperature of the measured medium via an electrical instrument (secondary instrument). This type of temperature detection and feedback is conventional in the art, and its structure and operating principle are not described in detail here.

[0051] In some embodiments, the cover plate 2 is provided with a plurality of jacks, which correspond to thermocouples one by one. A thermocouple is inserted into each jack, and the thermocouple and the jack are interference fit, which increases the convenience of disassembly and assembly.

[0052] In some embodiments, the heating element 31 comprises a silicon-molybdenum rod that penetrates the cover plate 2. The silicon-molybdenum rod is a high-temperature, oxidation-resistant resistance heating element made from molybdenum disilicide. Under operating conditions of approximately 1300°C, the silicon-molybdenum rod is not easily oxidized, causing defects in the glass due to foreign impurities. It has a long service life, is easy to replace, and is unaffected by the airflow pressure of the kiln. As a conventional component in this field, its structure and operating principle are not described in detail here.

[0053] In some embodiments, the number of silicon-molybdenum rods is at least six, specifically, there are at least two groups of heating monomers, and each group of heating monomers includes at least three silicon-molybdenum rods.

[0054] In some embodiments, the cover plate 2 is made of sillimanite, which is a brown, light green, light blue or white glassy silicate mineral and a conventional refractory material in the art. Detailed description thereof is omitted here.

[0055] like Figure 1 As shown, the embodiment of the present disclosure also provides a glass liquid conveying device, which includes a base 1 and the above-mentioned cover brick assembly. The base 1 is provided with a flow channel for the glass liquid to flow, and the top of the base 1 is open, and the cover brick assembly is snapped onto the open end of the base 1. The cover brick assembly here includes all the technical features of the above-mentioned cover brick assembly, and when the cover plate 2 of the cover brick is snapped onto the open end of the base 1, the end of the heating unit 31 is located above the liquid level of the glass liquid and has a certain distance from the liquid level of the glass liquid to avoid affecting the flow of the glass liquid. At the same time, it can heat the glass liquid at the corresponding position.

[0056] In some embodiments, the base 1 is lined with 33# high corundum bricks and is insulated with insulation bricks on the outside to ensure the use effect. The temperature of the glass liquid flowing in the flow channel of the base 1 is 1180-1350℃.

[0057] In some embodiments, the glass liquid conveying device is suitable for ordinary glass, high-aluminum-silicon glass, medium-aluminum glass, photovoltaic glass and other glasses with high uniformity requirements produced through flow channels.

[0058] The optical uniformity of the molten glass conveyed by the molten glass conveying device provided by the present disclosure is improved, and the streak defects of the finished glass products are reduced from 30% to less than 5%.

[0059] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0060] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A cover brick assembly, used to snap onto the open end of a base (1) of a glass liquid conveying device, wherein the base (1) is provided with a flow channel for the glass liquid to flow, characterized in that: The cover brick assembly comprises: a cover plate (2) for snapping onto the open end of the base (1); and The heating element (3) comprises a plurality of heating monomer groups disposed on the cover plate (2), wherein the plurality of heating monomer groups are arranged at intervals along a direction perpendicular to the opening of the flow channel, and each heating monomer group comprises at least one heating monomer (31), one end of the heating monomer (31) extends into the base (1) for heating the glass liquid at a corresponding position, and the other end of the heating monomer (31) extends out of the cover plate (2) in a direction away from the base (1); Wherein, one end of each heating unit (31) extending out of the cover plate (2) is respectively connected to a control circuit for controlling whether the heating unit (31) is heated.

2. The cover brick assembly according to claim 1, characterized in that: Each heating unit group comprises a plurality of heating units (31), and the plurality of heating units (31) are arranged at intervals along the opening direction of the flow channel.

3. The cover brick assembly according to claim 1, characterized in that: The cover plate brick assembly further comprises a plurality of fixing members arranged on the cover plate (2), the plurality of fixing members corresponding one-to-one to the plurality of heating units (31), and the fixing members are used to fix the corresponding heating units (31).

4. The cover brick assembly according to claim 3, characterized in that: The fixing member comprises a fixing clamp arranged on the cover plate (2), the fixing clamp being provided with a clamping hole for the heating unit (31) to pass through, and the heating unit (31) passing through the clamping hole can be locked by a locking member.

5. The cover brick assembly according to claim 4, characterized in that: One side of the fixing clamp is open, and a first locking plate and a second locking plate are respectively provided on both sides of the opening of the fixing clamp. The locking member includes a bolt and a nut. The bolt passes through the first locking plate and the second locking plate, and the nut of the bolt is fixedly connected to the first locking plate. The nut is sleeved on the part of the bolt passing through the second locking plate.

6. The cover brick assembly according to claim 1, characterized in that: The cover plate brick assembly further comprises a plurality of temperature detection members disposed on the cover plate (2), the temperature detection members being used to detect the temperature of the glass liquid at corresponding positions; Wherein, a temperature detection component is provided on the side of each heating unit (31).

7. The cover brick assembly according to claim 6, characterized in that: The temperature detection component comprises a thermocouple which is passed through the cover plate (2).

8. The cover brick assembly according to any one of claims 1 to 7, characterized in that: The heating unit (31) comprises a silicon-molybdenum rod passing through the cover plate (2).

9. The cover brick assembly according to any one of claims 1 to 7, characterized in that: The cover plate (2) bricks are made of sillimanite.

10. A glass liquid conveying device, characterized in that: include; The base (1) is provided with a flow channel for the glass liquid to flow, and the top of the base (1) is open; and The cover brick assembly according to any one of claims 1 to 9; Wherein, the cover brick assembly is buckled onto the open end of the base (1).

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