Device for improving warping of raw sheet glass
By setting vent holes and adjustment structures on the slag box, the gas flow rate in the slag box is controlled, and the problem of glass warping is solved, thereby improving the quality of glass and increasing production efficiency is achieved.
Patent Information
- Application Number
- CN202422117081.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing slag box equipment lacks a flow guide device to the upper airflow, resulting in temperature difference and SO2 concentration on the upper and lower surfaces of the glass, resulting in uneven hydroxyl concentration on the surface of the glass plate, which in turn causes glass warping and affects product quality.
The vent holes and adjustment structure are installed on the slag box. The upper gas flow rate in the slag box is controlled through the regulating valve and discharge pipe, and the temperature difference between the upper and lower surfaces of the glass and the SO2 concentration difference are balanced, the waste gas and ash slag are discharged, and the decaling reaction on the surface of the glass plate is balanced.
By adjusting the gas flow in the slag box, it reduces glass warpage, improves glass quality, reduces waste rate, saves materials and improves corporate efficiency.
Smart Images
Figure CN223060859U_ABST
Abstract
Description
Technical Field
[0001] The present utility model relates to the technical field of glass manufacturing, and in particular to a device for improving the warping of raw glass sheets. Background Art
[0002] As a traditional inorganic non-metallic material, glass has excellent physical, chemical, and optical properties due to its high hardness, corrosion resistance, and high transparency, and has broad application prospects in the fields of automobiles, electronics, construction, etc.
[0003] Empowered by AI, intelligent systems have become a standard configuration for automobiles, and large screens, multi-screens, and 3D curved screens are gradually becoming the market mainstream. In-vehicle cover glass is widely used in in-vehicle display screens due to its excellent characteristics. A high-quality in-vehicle curved screen glass can bring a more extreme experience to the automotive industry.
[0004] Due to the requirement for the warping of large-size (12.1 inches) in in-vehicle product applications to be ≤ 0.24 mm, there is still a certain gap between domestic ultra-thin electronic glass and world-class high-grade glass in terms of warping. These gaps mainly come from the control of details. Any process fluctuation will cause the instability of the overall working conditions, thus affecting the melting and forming effects of the glass, resulting in large warping of the raw glass sheets and reducing the quality.
[0005] The slag box is an indispensable equipment in the tin bath process and is the button connecting the tin bath and the annealing kiln. The pressure, temperature, sulfur dioxide concentration, etc. inside the slag box play a key role in glass production. Unreasonable pressure, temperature difference, and sulfur dioxide concentration between the upper and lower plates will cause large warping of the raw glass sheets for automotive and in-vehicle glass, which will further affect the subsequent chemical strengthening of the product, forming large-size warping and affecting the product quality.
[0006] The existing slag box equipment lacks a flow guiding device for the upper airflow, and the SO2 in the slag box cannot escape, and then a de-alkalization reaction occurs on the upper and lower surfaces of the glass, resulting in a concentration difference of hydroxyl groups on the glass plate surface. When the hydroxyl content is too large, the glass structure becomes loose, increasing the structural difference between the upper and lower surfaces of the glass. When chemical process treatment is carried out, it will cause the warping phenomenon of the glass. Summary of the Utility Model
[0007] To solve the problems raised in the above background art, the present utility model provides a new device for improving the warping of raw glass sheets above the slag box, which can improve the problem of large-size warping caused by the pressure difference and temperature difference between the upper and lower surfaces of the glass. This device can ensure the balance of the pressure difference and temperature difference of the slag box by adjusting the opening of the device according to the actual required process requirements.
[0008] The technical solution of the present utility model is as follows: A device for improving the warping of raw glass sheets, comprising:
[0009] A slag box is provided with a vent hole for discharging the upper airflow inside the slag box.
[0010] An adjusting structure is connected to the vent hole for adjusting the gas flow rate in the upper part of the slag box.
[0011] A connecting piece is installed on the slag box for connecting the slag box and the adjusting structure.
[0012] The first regulating valve including the adjusting structure is distributed at both ends of the connecting piece. By adjusting the size of the first regulating valve, the gas flow rate in the upper part of the slag box is controlled.
[0013] The second regulating valve including the adjusting structure is distributed inside the first regulating valve. By adjusting the size of the second regulating valve, the gas flow rate in the upper part of the slag box is controlled.
[0014] Adjust the first regulating valve and / or the second regulating valve of the adjusting structure to control the gas flow rate in the upper part of the slag box.
[0015] The first regulating pipe including the adjusting structure is connected to the connecting piece at the bottom and to the first regulating valve at the top for controlling the gas flow rate in the upper part of the slag box.
[0016] The second regulating pipe including the adjusting structure is connected to the connecting piece at the bottom and to the second regulating valve at the top for controlling the gas flow rate in the upper part of the slag box.
[0017] The first regulating pipe is a cylindrical dispersion pipe, and the first regulating valve is a circular cover plate. The cylindrical dispersion pipe is movably connected to the circular cover plate. By moving the circular cover plate, the opening degree of the cylindrical dispersion pipe is adjusted to control the gas flow rate in the upper part of the slag box.
[0018] The second regulating pipe is a square dispersion pipe, and the second regulating valve is a square groove cover plate. The square dispersion pipe is movably connected to the square groove cover plate. By moving the square groove cover plate, the opening degree of the square dispersion pipe is adjusted to control the gas flow rate in the upper part of the slag box.
[0019] The cylindrical dispersion pipe is movably connected to the circular cover plate through a cover plate link rod provided thereon.
[0020] The square dispersion pipe and the square groove cover plate can be moved by pushing and pulling along a linear track.
[0021] The beneficial effects of the present utility model are as follows:
[0022] In this solution, during the process of controlling the pressure and temperature above the slag box, an aluminum alloy steel plate is added to the original angle iron baffle and an opening slot is made to install a dispersion pipe, having the following beneficial effects:
[0023] (1) It realizes the discharge of waste gas and ash in the slag box through diversion, balances the temperature difference and SO2 concentration difference between the upper and lower surfaces of the glass, thereby balancing the de-alkalization reaction of SO2 on the glass plate surface, maintaining the hydroxyl concentration on the glass plate, offsetting the warping caused by tin infiltration on the lower surface of the glass, maintaining the structural difference between the upper and lower surfaces of the glass, and further reducing the warping of the original sheet, improving the glass quality;
[0024] (2) It reduces the rejection rate of the glass, saves materials and protects the environment, and at the same time improves the enterprise efficiency;
[0025] (3) The whole device has a simple structure, is convenient to use, and has strong practicability. Description of the Drawings
[0026] Figure 1 It is the front view of the present utility model;
[0027] Figure 2 It is the top view of the present utility model;
[0028] Figure 3 It is the side view of the present utility model;
[0029] Figure 4 It is the large-size warping diagram of the original sheet glass before the implementation of the present utility model;
[0030] Figure 5 It is the large-size warping diagram of the original sheet glass after the implementation of the present utility model. Detailed Embodiment
[0031] Next, with reference to the drawings, a device for improving the warping of the original sheet glass according to the present disclosure will be described in detail; to make the purpose, technical solution and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments.
[0032] Therefore, the following detailed description of the embodiments of the present disclosure provided in conjunction with the drawings is not intended to limit the scope of the present disclosure claimed, but merely represents the selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present disclosure.
[0033] Unless otherwise defined in the context, the singular form includes the plural form; throughout the specification, terms such as "including", "having", etc. are used herein to specify the presence of the described features, numbers, steps, operations, elements, components or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components or combinations thereof.
[0034] In addition, even though terms including ordinal numbers such as "first" and "second" may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one element from other elements. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may be referred to as the first component.
[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the disclosed product is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present disclosure.
[0036] Reference Figures 1 to 3 As shown, the present utility model discloses a device for improving the warping of the original sheet glass. According to a specific embodiment, it includes:
[0037] A slag box is provided with ventilation holes for discharging the upper airflow inside the slag box. The existing slag box equipment lacks a guiding device for the upper airflow, and the SO2 inside the slag box cannot escape, resulting in a dealkalization reaction on the upper and lower surfaces of the glass, causing a hydroxyl concentration difference on the glass plate surface. When the hydroxyl content is too high, the glass structure becomes loose, increasing the structural difference between the upper and lower surfaces of the glass. When chemical process treatment is carried out, it will cause the glass warping phenomenon.
[0038] Therefore, an adjusting structure 200 connected to the ventilation holes on the slag box is provided to adjust the upper gas flow rate inside the slag box, discharge the waste gas and ash slag inside the slag box, and balance the temperature difference and SO2 concentration difference between the upper and lower surfaces of the glass.
[0039] In a further specific embodiment, a connecting member 100 is provided between the slag box and the adjusting structure. It is installed on the slag box for connecting the slag box and the adjusting structure.
[0040] In a further specific embodiment, the connecting member 100 is a rectangular aluminum alloy steel plate.
[0041] In some specific embodiments, with reference to the schematic Figures 1 - 3 , first regulating valves of the adjusting structure 200 are provided at both ends of the connecting member 100, and the opening degree of the first regulating valves is adjusted to control the upper gas flow rate inside the slag box.
[0042] In a further some specific embodiments, second regulating valves of the adjusting structure 200 are provided inside the first regulating valves, and the size of the second regulating valves is adjusted to control the upper gas flow rate inside the slag box.
[0043] During the adjustment process, according to the actual upper gas flow rate in the slag box, the first regulating valve or the second regulating valve of the regulating structure 200 can be adjusted, or the first regulating valve and the second regulating valve of the regulating structure 200 can be adjusted simultaneously to better control the upper gas flow rate in the slag box.
[0044] In some specific embodiments, for reference Figures 1 - 3 , a first regulating pipe of the regulating structure is provided, with the bottom connected to the connecting member 100 and the top connected to the first regulating valve, for controlling the upper gas flow rate in the slag box.
[0045] In some further specific embodiments, it includes a second regulating pipe of the regulating structure, with the bottom connected to the connecting member 100 and the top connected to the second regulating valve, which is better for controlling the upper gas flow rate in the slag box.
[0046] In some further specific embodiments, the first regulating pipe is a cylindrical relief pipe 210, and the first regulating valve is a circular cover plate 220. The cylindrical relief pipe 210 is movably connected to the circular cover plate 220. By moving the circular cover plate 220, the opening degree of the cylindrical relief pipe 210 is adjusted to control the upper gas flow rate in the slag box.
[0047] In some further specific embodiments, the second regulating pipe is a square relief pipe 230, and the second regulating valve is a square groove cover plate 240. The square relief pipe 230 is movably connected to the square groove cover plate 240. By moving the square groove cover plate 240, the opening degree of the square relief pipe 230 is adjusted to control the upper gas flow rate in the slag box.
[0048] In some further specific embodiments, the cylindrical relief pipe 210 is movably connected to the circular cover plate 220 through a cover plate link rod 250 provided thereon.
[0049] In some further specific embodiments, the square relief pipe 230 and the square groove cover plate 240 can be moved in a straight line by pushing and pulling along a linear track.
[0050] In some further specific embodiments, for reference Figures 1 - 3 , according to the shape of the slag box, the connecting member 100 is a long strip-shaped aluminum alloy steel plate. The first regulating pipe, i.e., the cylindrical relief pipe 210, and the matching first regulating valve, i.e., the circular cover plate 220, are distributed at both ends of the long strip-shaped aluminum alloy steel plate. The second regulating pipe, i.e., the square relief pipe 230, and the matching second regulating valve, i.e., the square groove cover plate 240, are arranged in sequence and evenly. The specific number of the square relief pipe 230 and the matching square groove cover plate 240 is 7 pairs. The cylindrical relief pipe 210, the circular cover plate 220, the square relief pipe 230, and the square groove cover plate 240 are arranged in a straight line or close to a straight line.
[0051] The opening adjustment of the circular cover plate 220 and the square groove cover plate 240 can be achieved through a manual hook or through machine automation, such as cylinders, motors, etc.
[0052] The changes in the internal flow rate, temperature, pressure, etc. of the slag box caused by the opening adjustment of the circular cover plate 220 and the square groove cover plate 240 are monitored in real time by devices such as flow meters and pressure gauges, and then the opening sizes of the circular cover plate 220 and the square groove cover plate 240 are adjusted.
[0053] Through the utility model, the exhaust gas and ash slag inside the slag box are discharged, the temperature difference and SO2 concentration difference between the upper and lower surfaces of the glass are balanced, so as to balance the de-alkalization reaction of SO2 on the glass plate surface, maintain the hydroxyl concentration on the glass plate, offset the warping caused by tin infiltration on the lower surface of the glass, maintain the structural difference between the upper and lower surfaces of the glass, and further reduce the warping of the original sheet, improving the quality of the glass.
[0054] In actual production, according to the size of the slag box, the size of this aluminum alloy steel plate is: 4000 mm in length, 150 mm in thickness, and 400 mm in width. Others, such as the cylindrical diffuser pipe 210, the circular cover plate 220, the square diffuser pipe 230, and the square groove cover plate 240, are designed according to actual requirements.
[0055] In the actual production with the above dimensions, as Figure 4 and Figure 5 shown, Figure 4 is the large-size warping diagram of the original sheet before implementation, Figure 5 is the large-size warping diagram of the original sheet after implementation. The specific data analysis is as follows: By improving and adjusting the opening of the slag box diversion pipeline, the influence of the pressure and sulfur dioxide concentration on the original sheet is reduced. The openings of the two side circular pipelines are fully opened, and the opening of the middle pipeline is opened to 50%. There is an obvious improvement in the warping of the plate surface, making the warping of the glass meet the production requirements.
Claims
1. An apparatus for improving the warpage of a raw sheet of glass, characterized in that Comprising: A slag box with ventilation holes provided thereon for discharging the upper airflow inside the slag box; An adjustment structure communicated with the ventilation holes for adjusting the upper gas flow rate inside the slag box; A connecting member installed on the slag box for connecting the slag box and the adjustment structure.
2. The device for improving the warping of the original sheet glass according to claim 1, characterized in that: The first regulating valves including the adjustment structure are distributed at both ends of the connecting member, and the size of the first regulating valves is adjusted to control the upper gas flow rate inside the slag box.
3. The device for improving the warping of the original sheet glass according to claim 2, characterized in that: The second regulating valves including the adjustment structure are distributed inside the first regulating valves, and the size of the second regulating valves is adjusted to control the upper gas flow rate inside the slag box.
4. The device for improving the warping of the original sheet glass according to claim 3, characterized in that: The first regulating valves and / or the second regulating valves of the adjustment structure are adjusted to control the upper gas flow rate inside the slag box.
5. The device for improving the warping of the original sheet glass according to claim 2, characterized in that: The first regulating pipe including the adjustment structure is connected to the connecting member at the bottom and to the first regulating valve at the top for controlling the upper gas flow rate inside the slag box.
6. The device for improving the warping of the original sheet glass according to claim 2, characterized in that: The second regulating pipe including the adjustment structure is connected to the connecting member at the bottom and to the second regulating valve at the top for controlling the upper gas flow rate inside the slag box.
7. The device for improving the warping of the original sheet glass according to claim 5, characterized in that: The first regulating pipe is a cylindrical diffusion pipe, the first regulating valve is a circular cover plate, the cylindrical diffusion pipe is movably connected to the circular cover plate, and the circular cover plate is moved to adjust the opening degree of the cylindrical diffusion pipe for controlling the upper gas flow rate inside the slag box.
8. The device for improving the warping of the original sheet glass according to claim 6, characterized in that: The second regulating pipe is a square diffusion pipe, the second regulating valve is a square groove cover plate, the square diffusion pipe is movably connected to the square groove cover plate, and the square groove cover plate is moved to adjust the opening degree of the square diffusion pipe for controlling the upper gas flow rate inside the slag box.
9. The device for improving the warping of the original sheet glass according to claim 7, wherein: The cylindrical diffusion pipe is movably connected to the circular cover plate through a cover plate link rod provided thereon.
10. The device for improving the warpage of the original sheet glass according to claim 8, characterized in that: The square diffusion pipe and the square groove cover plate can be moved by pushing and pulling through a linear track.