Sulfur dioxide assembly

Abstract

The utility model relates to a sulfur dioxide assembly which comprises an on-board sulfur dioxide assembly and an under-board sulfur dioxide assembly which are located on an advancing path of a glass plate and oppositely arranged above and below the glass plate respectively. And the on-plate sulfur dioxide assembly and the under-plate sulfur dioxide assembly mutually and uniformly spray sulfur dioxide gas to the upper surface and the lower surface of the glass plate. The sulfur dioxide gas is introduced into the upper part and the lower part of the glass plate at the same time, so that the upper surface and the lower surface of the glass plate are cooled by the sulfur dioxide gas and react with the sulfur dioxide gas, the problem of non-uniform surface stress on the plate and under the plate is solved, and the defect of poor warping during tempering of the glass plate can be effectively overcome.

Description

Technical Field

[0001] The present application relates to the technical field of glass manufacturing, and in particular to a sulfur dioxide component. Background Art

[0002] In the field of ultra-thin glass plate manufacturing, in the process of manufacturing glass cover plates by float method, sulfur dioxide gas needs to be introduced into the workroom of the glass transition roller slag box and the annealing kiln to solve the contact scratch problem between the roller and the glass plate. Specifically, a fixed sulfur dioxide assembly is used under the glass plate to supply gas so that the sulfur dioxide gas reacts with the sodium ions on the lower surface of the glass plate to generate an erasable sodium sulfate film, which is used to protect the lower surface of the glass plate from being scratched by contact objects such as transition rollers. For example, Chinese Patent 202110082398.8 discloses a sulfur film control device and method for float glass surface, which discloses a sulfur dioxide flow control device to control the problem of uneven film on the lower surface of the glass plate. However, while using the above method to solve the scratch problem of ultra-thin float glass, it will have a certain cooling effect on a single side of the glass plate and cause a strong chemical change on a single side of the glass plate, which will cause abnormal internal gravity and tempered warping of the glass plate. Utility Model Content

[0003] The present application provides a sulfur dioxide component to solve the problem of plate scratches in the prior art, which uses sulfur dioxide to pass under the plate, which will produce a cooling effect on a single side of the glass plate and cause strong chemical changes, resulting in differences between the upper and lower plate surfaces, leading to abnormal stress in the glass plate and tempered warping.

[0004] A sulfur dioxide assembly provided according to the present application includes an on-board sulfur dioxide assembly and a under-board sulfur dioxide assembly. The on-board sulfur dioxide assembly and the under-board sulfur dioxide assembly are located on the travel path of a glass plate and are arranged opposite to each other above and below the glass plate, respectively. The on-board sulfur dioxide assembly and the under-board sulfur dioxide assembly evenly spray sulfur dioxide gas toward the upper and lower surfaces of the glass plate.

[0005] In some embodiments, the on-board sulfur dioxide assembly and / or the under-board sulfur dioxide assembly includes: an air injection mechanism and an air supply mechanism;

[0006] The jet mechanism includes: a main pipeline, a branch pipeline and an air outlet pipe; the length direction of the main pipeline is consistent with the width direction of the glass plate, the air outlet pipes are evenly distributed on the side of the main pipeline along the length direction of the main pipeline, the branch pipelines are inserted into the main pipeline and connected to the air outlet pipes one by one, and the branch pipelines extend from one end of the main pipeline to form an air inlet;

[0007] The air supply mechanism comprises a plurality of sets of air supply pipelines which are independently arranged, and each air supply pipeline is connected to the air inlet of each branch pipeline in a one-to-one correspondence.

[0008] In some embodiments, each gas supply pipeline is provided with a shut-off valve and a flow meter, and the shut-off valve and the flow meter are connected in series.

[0009] In some embodiments, the stop valve includes a first stop valve and a second stop valve, and the first stop valve and the second stop valve are respectively arranged upstream and downstream of the flow meter;

[0010] Each gas supply pipeline is also provided with an emergency bypass valve, which is connected in parallel with the first stop valve, the flow meter and the second stop valve.

[0011] In some embodiments, the main pipeline, branch pipelines and outlet pipe are all made of stainless steel, and the flow meter is made of organic glass.

[0012] In some embodiments, the jet mechanism further includes: a connecting plate; the jet mechanism is connected and installed via the connecting plate, and the main pipeline is rotatably arranged on the connecting plate.

[0013] In some embodiments, two connecting plates are symmetrically provided, each connecting plate is provided with a bearing, and both ends of the main pipeline are rotatably connected to the two connecting plates through the bearings.

[0014] In some embodiments, in the sulfur dioxide assembly on the plate, the main pipeline is configured to face the outlet pipe downward due to its own weight, so that the jet direction is downward; in the sulfur dioxide assembly under the plate, a counterweight is provided on the opposite side of the main pipeline relative to the outlet pipe, and the main pipeline is configured to face the outlet pipe upward due to the counterweight, so that the jet direction is upward.

[0015] In some embodiments, an oblong through hole is provided on the connecting plate, and the connecting plate is installed so as to be able to be raised and lowered and adjusted through the oblong through hole.

[0016] In some embodiments, the sulfur dioxide assembly is disposed in one or more of the following locations, including: a tin bath outlet, within a slag box, and within an annealing lehr.

[0017] The sulfur dioxide assembly of the present application includes an upper sulfur dioxide assembly and a lower sulfur dioxide assembly. The upper sulfur dioxide assembly and the lower sulfur dioxide assembly are located on the path of the glass plate and are arranged opposite to each other above and below the glass plate, respectively. The upper sulfur dioxide assembly and the lower sulfur dioxide assembly evenly spray sulfur dioxide gas to the upper surface and the lower surface of the glass plate. Since the present application introduces sulfur dioxide gas simultaneously above and below the glass plate, the upper surface and the lower surface of the glass plate can both be cooled by sulfur dioxide gas and react with sulfur dioxide gas, thereby solving the problem of uneven surface stress on and below the plate, and effectively overcoming the poor tempering warping of the glass plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic diagram of the structure of the injection mechanism of the sulfur dioxide assembly of the embodiment of the present application is shown;

[0021] Figure 2 A schematic diagram of the gas supply mechanism structure of the sulfur dioxide assembly of an embodiment of the present application is shown;

[0022] The above drawings include the following reference numerals:

[0023] 1. Jet mechanism; 11. Main pipeline; 12. Branch pipeline; 13. Air outlet pipe; 14. Connecting plate; 141. Oblong through hole; 15. Bearing; 2. Air supply mechanism; 21. Air supply port; 22. First stop valve; 23. Flow meter; 24. Second stop valve; 25. Emergency bypass valve; 26. Air source interface. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Figure 1 to Figure 2 An embodiment of the sulfur dioxide assembly of the present application is schematically shown.

[0030] like Figure 1 to Figure 2 As shown, the present application discloses a sulfur dioxide assembly for glass plate production, comprising an upper sulfur dioxide assembly and a lower sulfur dioxide assembly. The upper sulfur dioxide assembly and the lower sulfur dioxide assembly are located on the path of the glass plate, and are arranged opposite to each other above and below the glass plate, respectively. The upper sulfur dioxide assembly and the lower sulfur dioxide assembly evenly spray sulfur dioxide gas toward the upper surface and the lower surface of the glass plate.

[0031] In an embodiment of the present application, the sulfur dioxide assembly includes an on-board sulfur dioxide assembly and a under-board sulfur dioxide assembly. The on-board sulfur dioxide assembly and the under-board sulfur dioxide assembly can simultaneously introduce sulfur dioxide gas to the upper and lower sides of the glass plate, thereby uniformly cooling and chemically reacting the upper and lower surfaces of the glass plate, so that the upper and lower surfaces of the glass plate are subjected to the same airflow cooling effect, and the stress and sodium ion concentration on the upper and lower surfaces of the glass plate are adjusted to be similar and uniform, thereby overcoming the warping of the glass plate caused by uneven stress during the subsequent tempering process, improving the product yield, and improving the quality of the glass plate.

[0032] In some embodiments of the present application, the on-board sulfur dioxide assembly and / or the under-board sulfur dioxide assembly have the same or similar structures, and both include: an air injection mechanism 1 and an air supply mechanism 2. Figure 1 and Figure 2 In the illustrated embodiment, the on-board sulfur dioxide assembly is taken as an example for description.

[0033] refer to Figure 1 As shown, the jet mechanism 1 of the sulfur dioxide assembly on the plate includes: a main pipeline 11, a branch pipeline 12 and an outlet pipe 13. The length direction of the main pipeline 11 is consistent with the width direction of the glass plate, so that the width range of the glass plate can be covered and various areas of the glass plate can be jetted. The outlet pipes 13 are evenly distributed on the side of the main pipeline 11 along the length direction of the main pipeline 11, and sulfur dioxide gas can be evenly sprayed on the upper surface of the glass plate to react on the surface of the glass plate. Each branch pipeline 12 is inserted into the main pipeline 11 and connected to each outlet pipe 13 one by one. The branch pipeline 12 extends from one end of the main pipeline 11 to form an air inlet to connect the air supply mechanism 2 to obtain a sulfur dioxide gas source. In the embodiment of the present application, by setting each outlet pipe 13 independently from each other, the sulfur dioxide spraying flow control of any glass plate area can be achieved to accurately respond to the surface differences of different parts of the glass plate and improve the surface defects of the glass plate.

[0034] refer to Figure 2 As shown, the gas supply mechanism 2 includes a plurality of gas supply pipelines independently arranged from each other, each gas supply pipeline is connected to the gas inlet of each branch pipeline 12 in a one-to-one correspondence, so as to provide a specific sulfur dioxide gas flow for each gas outlet pipe 13. In the embodiment of the present application, each gas supply pipeline is connected to the corresponding injection mechanism 1 through its own gas supply port 21, and each gas supply pipeline can share a gas source interface 26 to connect to a sulfur dioxide gas source, such as a sulfur dioxide gas cylinder.

[0035] In some embodiments of the present application, each gas supply pipeline is provided with a stop valve and a flow meter 23, and the stop valve and the flow meter 23 are connected in series. The flow meter 23 and the stop valve can accurately control the air flow rate of each route to control the surface characteristics of the glass plate, achieve homogenization between the upper and lower surfaces of the glass plate and homogenization within the upper and lower surfaces, thereby reducing the probability of warping caused by uneven stress. Among them, the flow meter 23 and the stop valve can be controlled by manual observation, and can also be connected to an automatic control system for automatic control.

[0036] In some embodiments of the present application, Figure 2 As shown, the stop valve includes a first stop valve 22 and a second stop valve 24, and the first stop valve 22 and the second stop valve 24 are respectively arranged upstream and downstream of the flow meter 23. In addition, each gas supply pipeline is also provided with an emergency bypass valve 25, and the emergency bypass valve 25 is connected in parallel with the first stop valve 22, the flow meter 23 and the second stop valve 24. When the flow meter 23 needs maintenance or repair, the emergency bypass valve 25 can be temporarily opened, and the first stop valve 22 and the second stop valve 24 can be closed to achieve system thermal maintenance of the flow meter 23.

[0037] In some embodiments of the present application, in order to overcome the corrosiveness of sulfur dioxide, the main pipeline 11, the branch pipeline 12 and the outlet pipe 13 are all made of stainless steel, and the flow meter 23 is made of organic glass resistant to sulfur dioxide corrosion. The flow meter 23 is a float flow meter 23, and the use of organic glass to make the shell can also facilitate the observation of the flow indication.

[0038] In some embodiments of the present application, Figure 1 As shown, the jet mechanism 1 further includes a connecting plate 14. The jet mechanism 1 is connected and installed above or below the glass plate through the connecting plate 14, for example, connected and installed on a transition roller or a slag box or a steel structure of an annealing furnace. The main pipeline 11 is rotatably arranged on the connecting plate 14.

[0039] In the process of producing glass sheets by float glass, the molten glass floats on the surface of the liquid metal tin in the tin bath, and gradually cools down to form a glass sheet as it moves forward. Therefore, when the glass sheet breaks and the glass liquid (sheet) in the tin bath cannot be discharged in time, the thickness of the glass sheet will increase. Under the existing fixed sulfur dioxide assembly, the thickened glass sheet is prone to hit the sulfur dioxide assembly and get stuck when it is guided again. In view of this situation, the embodiment of the present application arranges the main pipe 11 rotatably on the connecting plate 14. When the thickened glass sheet contacts and hits the sulfur dioxide assembly, the main pipe 11 can rotate to avoid the glass sheet from getting stuck, thereby smoothly guiding the sheet, ensuring stable operation of the equipment, and improving production efficiency.

[0040] In some embodiments of the present application, Figure 1As shown, two connecting plates 14 are symmetrically provided, and bearings 15 are provided on both connecting plates 14. Both ends of the main pipeline 11 are rotatably connected to the two connecting plates 14 through the bearings 15 to achieve smooth rotation.

[0041] Continue as Figure 1 As shown, in the embodiment of the present application, in the on-plate sulfur dioxide assembly, the main pipeline 11 sets the outlet pipe 13 downward by the dead weight of the outlet pipe 13, thereby controlling the jetting direction downward.

[0042] In the under-plate sulfur dioxide assembly of the present application, a counterweight block can be set on the opposite side of the main pipeline 11 relative to the outlet pipe 13. The main pipeline 11 uses the counterweight of the counterweight block to make the outlet pipe 13 face upward, thereby controlling the jet direction upward.

[0043] In some embodiments of the present application, Figure 1 As shown, the connecting plate 14 is provided with an oblong through hole 141, and the connecting plate 14 is installed in a manner that it can be raised and lowered and adjusted through the oblong through hole 141. Specifically, for the sulfur dioxide assembly on the plate of the embodiment of the present application, the connecting plate 14 can be installed by passing a positioning pin or a positioning rod through the oblong through hole 141, so that when the glass plate hits and pushes out the air pipe 13, the connecting plate 14 can drive the main pipeline 11 and the air outlet pipe 13 to rise together, thereby avoiding the situation that the glass plate is stuck and broken, further protecting the stable operation of the equipment and improving the safety performance.

[0044] In some embodiments of the present application, the sulfur dioxide assembly is disposed in one or more of the following locations, including: the tin bath outlet, the slag box, and the annealing furnace. That is to say, the sulfur dioxide assembly of the embodiment of the present application can be disposed at any location where there is a contact surface and sulfur dioxide needs to be introduced to protect the surface of the glass plate, so as to protect the lower surface of the glass plate from being scratched while controlling the homogenization cooling and reaction of the upper and lower surfaces of the glass plate, overcome the problem of uneven stress of the glass plate, reduce the probability of tempering warping of the glass plate, and improve product quality and production efficiency.

[0045] In summary, the sulfur dioxide assembly of the embodiment of the present application includes an upper sulfur dioxide assembly and a lower sulfur dioxide assembly. The upper sulfur dioxide assembly and the lower sulfur dioxide assembly can simultaneously introduce sulfur dioxide gas to the upper and lower sides of the glass plate, thereby uniformly cooling and chemically reacting the upper and lower surfaces of the glass plate, so that the upper and lower surfaces of the glass plate are subjected to the same airflow cooling effect, and the sodium ion concentrations on the upper and lower surfaces of the glass plate are adjusted to be similar and uniform, thereby overcoming the warping of the glass plate caused by uneven stress during the subsequent tempering process, improving the product yield, and improving the quality of the glass plate.

[0046] In a preferred embodiment of the present application, the jet mechanism of the sulfur dioxide assembly above and below the plate is configured as a rotatable structure, which can prevent the thickened glass plate from colliding and getting stuck when the broken plate is repeatedly connected, thereby smoothly realizing the broken plate connection, ensuring stable operation of the equipment, and improving production safety and efficiency.

[0047] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sulfur dioxide assembly, characterized in that: It includes an on-board sulfur dioxide assembly and an under-board sulfur dioxide assembly; The sulfur dioxide assembly on the plate and the sulfur dioxide assembly under the plate are located on the travel path of the glass plate and are arranged opposite to each other above and below the glass plate, respectively. The sulfur dioxide assembly on the plate and the sulfur dioxide assembly under the plate spray sulfur dioxide gas uniformly toward the upper surface and the lower surface of the glass plate.

2. The sulfur dioxide assembly according to claim 1, characterized in that: The above-plate sulfur dioxide assembly and / or the below-plate sulfur dioxide assembly comprises: an air injection mechanism (1) and an air supply mechanism (2); The jet mechanism (1) comprises: a main pipe (11), a branch pipe (12) and an air outlet pipe (13); the length direction of the main pipe (11) is consistent with the width direction of the glass plate; the air outlet pipe (13) is evenly distributed on the side of the main pipe (11) along the length direction of the main pipe (11); the branch pipe (12) is inserted into the main pipe (11) and is connected to the air outlet pipe (13) in a one-to-one correspondence; the branch pipe (12) extends from one end of the main pipe (11) to form an air inlet; The air supply mechanism (2) comprises a plurality of groups of air supply pipelines which are independently arranged, and each of the air supply pipelines is connected to the air inlet of each of the branch pipelines (12) in a one-to-one correspondence.

3. The sulfur dioxide assembly according to claim 2, characterized in that: Each of the gas supply pipelines is provided with a stop valve and a flow meter (23), and the stop valve and the flow meter (23) are connected in series.

4. The sulfur dioxide assembly according to claim 3, characterized in that: The stop valve comprises a first stop valve (22) and a second stop valve (24), wherein the first stop valve (22) and the second stop valve (24) are respectively arranged upstream and downstream of the flow meter (23); Each of the gas supply pipelines is also provided with an emergency bypass valve (25), and the emergency bypass valve (25) is connected in parallel with the first stop valve (22), the flow meter (23) and the second stop valve (24).

5. The sulfur dioxide assembly according to claim 3, characterized in that: The main pipeline (11), the branch pipeline (12) and the air outlet pipe (13) are all made of stainless steel, and the flow meter (23) is made of organic glass.

6. The sulfur dioxide assembly according to claim 2, characterized in that: The jet mechanism (1) further comprises: a connecting plate (14); the jet mechanism (1) is connected and installed via the connecting plate (14), and the main pipeline (11) is rotatably arranged on the connecting plate (14).

7. The sulfur dioxide assembly according to claim 6, characterized in that: Two connecting plates (14) are symmetrically arranged, each connecting plate (14) is provided with a bearing (15), and the two ends of the main pipeline (11) are rotatably connected to the two connecting plates (14) via the bearings (15).

8. The sulfur dioxide assembly according to claim 6, characterized in that: In the above-plate sulfur dioxide assembly, the main pipeline (11) is arranged downwardly by the deadweight of the outlet pipe (13), so that the jet direction is downwardly directed; in the below-plate sulfur dioxide assembly, a counterweight is arranged on the opposite side of the main pipeline (11) relative to the outlet pipe (13), and the main pipeline (11) is arranged upwardly by the counterweight, so that the jet direction is upwardly directed.

9. The sulfur dioxide assembly according to claim 6, characterized in that: The connecting plate (14) is provided with an oblong through hole (141), and the connecting plate (14) is installed in a manner that it can be raised and lowered and adjusted through the oblong through hole (141).

10. The sulfur dioxide assembly according to claim 1, characterized in that: The sulfur dioxide assembly is disposed in one or more of the following locations, including: a tin bath outlet, a slag box, and an annealing kiln.

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