Lip brick assembly and calendering device

Abstract

The utility model provides a lip brick assembly and a calendering device, the lip brick assembly is used for conveying molten materials, and the lip brick assembly comprises a lip brick body; and the heating plate is at least partially attached to the end part of the lip brick body and can be electrified to heat so as to heat the molten material flowing through the heating plate. According to the technical scheme, the heating plate is attached to the end of the lip brick body of the lip brick assembly, the molten material flowing through the end of the lip brick body is heated, crystallization caused by temperature difference when the molten material flows through the end of the lip brick body is avoided, and the problem of crystallization is fundamentally solved. The lip brick has the advantages that glass plate quality reduction caused by devitrification and damage to the lip brick body and the calendering roller due to devitrification cleaning are avoided, the service life of the lip brick body is prolonged, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of glass manufacturing technology, and in particular to a lip brick assembly and a rolling apparatus. Background Technology

[0002] In the glass production process, molten glass is melted in a furnace and then conveyed to a rolling mill via lip bricks to form glass sheets. Glass crystals easily form at the ends of the lip bricks. These crystals gradually increase in size over time, forming dark lines on the finished glass sheets, reducing glass quality, affecting the thermal state of the lip brick ends, and damaging the ends of the lip bricks, thus impacting the quality of the produced glass. If the crystals grow to a certain extent, they can also scratch the rolling mill rollers, causing equipment damage and production line shutdowns.

[0003] To eliminate the impact of crystallization, the traditional method is to manually remove the crystallization using metal tools. However, this cannot completely remove the crystallization at the end of the lip brick, and the crystallization will grow back quickly. Cleaning the crystallization will also cause some damage to the lip brick and the rolling mill, increasing production costs. Utility Model Content

[0004] One of the technical problems that this disclosure aims to solve is that manual removal of crystals using metal tools cannot completely remove the crystals at the end of the lip brick, and the crystals will grow back quickly. During cleaning, the crystals will also cause some damage to the lip brick and the calendering roll, increasing production costs.

[0005] To address the aforementioned technical problems, this disclosure provides a lip brick assembly for conveying molten material, comprising:

[0006] The lip brick itself; and

[0007] A heating plate, which is at least partially attached to the end of the lip brick body and is electrically conductive to heat the molten material flowing through it.

[0008] In some embodiments, the top surface of the lip brick body is horizontal, and the end extends along the top surface in the flow direction of the molten material. The end includes a downwardly inclined upper end surface and a downwardly inclined lower end surface, and the upper end surface and the lower end surface are connected by an arc-shaped corner.

[0009] In some embodiments, the upper end face includes an upper end face heating portion and an upper end face non-heating portion, wherein the upper end face heating portion is located below the upper end face.

[0010] The lower end face includes a lower end face heating part and a lower end face non-heating part, with the lower end face heating part located on the lower side of the lower end face;

[0011] The heating plate is fixedly attached to the upper heating part, the corner, and the lower heating part.

[0012] In some embodiments, the heating plate further includes a flange, which is vertically disposed on the upper edge of the plate body, extends to one side of the upper end face, and is embedded in the end at the boundary line between the upper end face heating part and the upper end face non-heating part, so as to fix the heating plate at the end.

[0013] In some embodiments, the flanges are spaced apart in the end along the length direction of the upper edge of the plate.

[0014] In some embodiments, the heating plate further includes metal nails, and the plate body is fixed to the upper end heating part by the metal nails so that the heating plate is fixed at the end.

[0015] In some embodiments, leads are connected to the side of the heating plate, and the leads are electrically connected to an external power supply.

[0016] This disclosure also provides a calendering apparatus, the calendering apparatus comprising:

[0017] Kilns are used to heat materials.

[0018] Lip brick assembly for conveying molten material flowing from the kiln; and

[0019] A calender is located downstream of the lip brick assembly and is used to calender the molten material conveyed by the lip brick assembly.

[0020] In some embodiments, the calender includes an upper calender roll and a lower calender roll, the lower calender roll being spaced below the upper calender roll and close to its end, allowing molten material to enter the gap between the upper and lower calender rolls and be calendered.

[0021] In some embodiments, the calendering apparatus further includes a transition roller table located downstream of the calender for conveying the glass sheet obtained after calendering.

[0022] Through the above technical solution, the lip brick assembly provided in this disclosure has a heating plate attached to the end of the lip brick body to heat the end of the lip brick body and the molten material flowing through the end of the lip brick body, avoiding crystallization caused by temperature difference and fundamentally eliminating the generation of crystallization. This avoids the reduction in product quality caused by crystallization, as well as the damage to the lip brick body and calendering roll caused by cleaning crystallization, extends the service life of the lip brick body, improves production efficiency, and reduces production costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the calendering apparatus disclosed in this embodiment;

[0025] Figure 2 This is a schematic diagram of crystallization occurring in the lip brick assembly disclosed in this embodiment;

[0026] Figure 3 This is a front view of one embodiment of the lip brick assembly disclosed in this disclosure;

[0027] Figure 4 This is the embodiment disclosed in this disclosure. Figure 3 Enlarged view of section A;

[0028] Figure 5 This is the embodiment disclosed in this disclosure. Figure 3 Right view of the middle lip brick component;

[0029] Figure 6 This is a right view of another embodiment of the lip brick component disclosed in this disclosure.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Kiln; 2. Calender; 21. Upper calender roll; 22. Lower calender roll; 3. Transition roll table; 4. Molten material; 6. Crystallization; 7. Glass plate;

[0032] 5. Lip brick assembly; 51. Lip brick body; 511. End; 5111. Upper end face; 5111a. Upper end face heating part; 5111b. Upper end face non-heating part; 5112. Corner; 5113. Lower end face; 5113a. Lower end face heating part; 5113b. Lower end face non-heating part; 512. Top surface;

[0033] 52. Heating plate; 521. Plate body; 522. Flanged edge; 523. Metal nail; 524. Lead wire. Detailed Implementation

[0034] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This 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.

[0035] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0036] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0038] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0039] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0040] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0041] To address the problems of existing technologies where manual removal of crystals using metal tools cannot completely remove crystals from the lip brick end, and where crystals quickly grow back, causing damage to the lip brick and calendering rolls during cleaning and increasing production costs, this disclosure provides a lip brick assembly 5, such as... Figure 3 As shown, the lip brick assembly 5 is used to convey molten material 4. The lip brick assembly 5 includes: a lip brick body 51; and a heating plate 52. The heating plate 52 is at least partially attached to the end 511 of the lip brick body 51 and is electrically heated to heat the molten material 4 flowing through it. When the molten material 4 flows on the lip brick assembly 5, it is heated by the heating plate 52 as it flows through the end 511 of the lip brick body 51. The heating plate 52 can be made of platinum or platinum alloy to prevent corrosion by the molten material 4. The temperature of the heating plate 52 is between 1000℃ and 1200℃. By heating the end 511 with the heating plate 52, the low temperature of the end 511 caused by the environment and the calender 2 is compensated, making the temperature of the lip brick body 51 uniform overall. At the same time, it heats the molten material 4 flowing through the end 511, ensuring that the temperature of the molten material 4 does not decrease as it flows through the end 511, thereby completely eliminating the formation of crystals. The above technical solutions avoid the reduction in product quality caused by crystallization, as well as the damage to the lip brick body and calendering roll caused by cleaning crystallization, thus extending the service life of the lip brick body, improving production efficiency, and reducing production costs.

[0042] In some embodiments, such as Figure 1 and Figure 3 As shown, molten material 4 flows from the top surface 512 of the lip brick body 51 through the end 511 into the calender 2. The top surface 512 of the lip brick body 51 is horizontal, and the end 511 extends along the top surface 512 in the flow direction of the molten material 4, guiding the molten material 4 into the calender 2. The end 511 includes a downwardly inclined upper end surface 5111 and a downwardly inclined lower end surface 5113, which are connected by an arc-shaped corner 5112. This arc-shaped corner 5112 guides the molten material 4 into the calender 2 while preventing the molten material 4 from accumulating on the corner 5112 and the lower end surface 5113.

[0043] like Figure 2 As shown, a schematic diagram of crystallization in the lip brick assembly 5 is given. Crystallization 6 is easily generated at the lower end, namely at the corner 5112 and the lower end face 5113. Based on this situation, a heating plate 52 is specifically provided at the end 511.

[0044] In some embodiments, such as Figure 4As shown, the upper end surface 5111 includes an upper end surface heating part 5111a and an upper end surface non-heating part 5111b. The upper end surface heating part 5111a is located on the lower side of the upper end surface 5111 and is adjacent to the upper edge of the corner 5112. The lower end surface 5113 includes a lower end surface heating part 5113a and a lower end surface non-heating part 5113b. The lower end surface heating part 5113a is located on the lower side of the lower end surface 5113 and is adjacent to the lower edge of the corner 5112. The plate body 521 of the heating plate 52 is fixedly attached to the upper end surface heating part 5111a, the corner 5112, and the lower end surface heating part 5113a. The plate 521 is attached to the corner 5112 and the lower end heating part 5113a, which can target the location where crystallization 6 occurs. The plate 521 is set on the upper end heating part 5111a to further heat the end 511 and the molten material 4, so that the temperature of the lip brick body 51 and the molten material 4 is uniform as a whole, and the crystallization 6 is avoided. Of course, the plate 521 can also be attached to the entire end 511, that is, the entire upper end surface 5111, the corner 5112 and the entire lower end surface 5113.

[0045] In some embodiments, such as Figure 4 As shown, the heating plate 52 also includes a flange 522, which is vertically disposed on the upper edge of the plate body 521. The flange 522 extends to the side where the upper end face 5111 is located and is embedded in the end face 511 at the boundary line between the heating part 5111a and the non-heating part 5111b of the upper end face, thereby fixing the heating plate 52 to the end face 511. This ensures that the upper edge of the plate body 521 is close to the upper end face 5111, preventing the molten material 4 from entering the gap between the plate body 521 and the upper end face 5111 and eroding the plate body 521, which would cause the upper edge of the plate body 521 to warp and affect product quality. Since the plate body 521 is integrally formed, and given the shape of the plate body 521 and the end face 511, the lower edge of the plate body 521 can adhere to the end face 511 even if it is not fixed, and the lower edge does not contact the molten material 4. Even if it warps, it will not affect the product quality. Therefore, it is only necessary to ensure that the upper edge of the plate body 521 is fixed to the end face 511.

[0046] In some embodiments, to prevent the flange 522 from being fully embedded in the end 511 along the upper edge of the plate 521, forming a long groove that could easily cause the lip brick body 51 to break, the flange 522 is embedded in the end 511 at intervals along the length direction of the upper edge of the plate 521. This achieves the goal of fixing the plate 521 to the end 511 while preventing the lip brick body 51 from breaking. Specifically, flanges 522 are provided at intervals of 50mm-150mm along the upper edge of the plate 521, with an embedding length of 30mm-50mm.

[0047] In some embodiments, such as Figure 6As shown, the plate 521 can also be fixed to the upper end heating part 5111a by metal nails 523, thereby fixing the heating plate 52 to the end 511. The metal nails 523 are made of platinum or platinum alloy to prevent corrosion by the molten material 4. Specifically, the metal nails 523 are spaced apart along the length of the upper edge of the plate 521 near the upper edge of the plate 521 where it fits against the upper end heating part 5111a, with a spacing of 50mm-150mm. It can be understood that... Figure 6 This is a schematic diagram of the distribution of metal nails 523. Multiple metal nails 523 can be set according to the width of the lip brick body 51.

[0048] In some embodiments, such as Figure 5 and 6 As shown, the side of the plate 521 is connected to a lead 524, which is electrically connected to an external power supply device to generate heat in the plate 521.

[0049] This disclosure also provides a calendering apparatus, such as Figure 1 As shown, the rolling apparatus includes: a furnace 1, which heats the material to a molten state and provides molten material 4; the aforementioned lip brick assembly 5, which conveys the molten material 4 flowing out of the furnace 1; and a rolling mill 2, located downstream of the lip brick assembly 5, for rolling the molten material 4 conveyed by the lip brick assembly 5. After the molten glass flows out of the furnace 1, it first forms a glass pool on the lip brick assembly 5, and then stably supplies molten glass to the rolling mill 2. The molten glass is rolled by the rolling mill 2 to form glass sheets 7.

[0050] In some embodiments, such as Figure 1 As shown, the calender 2 includes an upper calender roll 21 and a lower calender roll 22. The lower calender roll 22 is located below the upper calender roll 21 and forms a gap with the upper calender roll 21. The lower calender roll 22 is close to the end 511. After the molten material 4 flows through the lip brick assembly 5, it enters the gap between the upper calender roll 21 and the lower calender roll 22 and is calendered into a glass plate 7.

[0051] In some embodiments, the calendering apparatus further includes a transition roller table 3, which is located downstream of the calender 2. The molten material 4 is calendered by the calender 2 to obtain a glass plate 7, which is then conveyed by the transition roller table 3.

[0052] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0053] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A lip brick assembly (5) characterized by, The lip brick assembly (5) is used for conveying molten material (4) and comprises: a lip brick body (51); and a heating plate (52) which is at least partially attached to an end portion (511) of the lip brick body (51) and can be powered to heat the molten material (4) flowing through the heating plate (52).

2. The lip brick assembly (5) according to claim 1, characterized in that The top surface (512) of the lip brick body (51) is horizontal, the end portion (511) extends along the top surface (512) in the flow direction of the molten material (4), and the end portion (511) comprises an upper end surface (5111) and a lower end surface (5113) which are both inclined downward, and the upper end surface (5111) and the lower end surface (5113) are connected by an arc-shaped corner (5112).

3. The lip brick assembly (5) according to claim 2, characterized in that The upper end surface (5111) comprises an upper end surface heating portion (5111a) and an upper end surface non-heating portion (5111b), and the upper end surface heating portion (5111a) is located on the lower side of the upper end surface (5111); The lower end surface (5113) comprises a lower end surface heating portion (5113a) and a lower end surface non-heating portion (5113b), and the lower end surface heating portion (5113a) is located on the lower side of the lower end surface (5113); The plate body (521) of the heating plate (52) is fixedly attached to the upper end surface heating portion (5111a), the corner (5112), and the lower end surface heating portion (5113a).

4. The lip brick assembly (5) according to claim 3, characterized in that The heating plate (52) further comprises a flange (522) which is vertically arranged on the upper edge of the plate body (521), extends to one side of the upper end surface (5111), and is embedded in the end portion (511) at the boundary between the upper end surface heating portion (5111a) and the upper end surface non-heating portion (5111b) to fix the heating plate (52) in the end portion (511).

5. The lip brick assembly (5) according to claim 4, characterized in that The flange (522) is embedded in the end portion (511) at intervals along the length direction of the upper edge of the plate body (521).

6. The lip brick assembly (5) according to claim 3, characterized in that The heating plate (52) further comprises metal nails (523) by which the plate body (521) is fixed to the upper end surface heating portion (5111a) to fix the heating plate (52) in the end portion (511).

7. The lip brick assembly (5) according to claim 1, characterized in that The side edges of the plate body (521) of the heating plate (52) are connected to lead wires (524) which are electrically connected to external power supply devices.

8. A calendering device characterized by, The calendering device comprises: a kiln (1) for heating material; the lip brick assembly (5) according to any one of claims 1-7 for conveying the molten material (4) flowing out of the kiln (1); and a calender (2) arranged downstream of the lip brick assembly (5) for calendering the molten material (4) conveyed by the lip brick assembly (5).

9. The calendering apparatus of claim 8, wherein, The calender (2) comprises an upper calender roller (21) and a lower calender roller (22), which is arranged below the upper calender roller (21) at intervals and close to the end portion (511), and the molten material (4) can enter the gap between the upper calender roller (21) and the lower calender roller (22) and be calendered.

10. The calendering apparatus of claim 8, wherein The calendering device further comprises a transition roller table (3) arranged downstream of the calender (2) for conveying the glass sheet (7) obtained after being calendered by the calender (2).

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