Tin bath exhaust device

Abstract

The utility model discloses an exhaust device for a tin bath. The exhaust device comprises an exhaust assembly and a sealing assembly, the exhaust assembly is communicated with a breast wall of the tin bath and is used for exhausting gas in the tin bath; the sealing assembly is connected with the exhaust assembly; an exhaust valve is further arranged on the exhaust assembly and used for adjusting the internal pressure and the discharge amount of the tin bath; the exhaust assembly comprises a first exhaust pipe and a second exhaust pipe; one end of the first exhaust pipe penetrates through the breast wall and is communicated with the tin bath, and the other end of the first exhaust pipe is detachably connected with the sealing assembly; the pipe wall of the second exhaust pipe communicates with the pipe wall of the first exhaust pipe, and the second exhaust pipe is detachably connected with the first exhaust pipe. The device has the beneficial effects that the discharge amount and the internal pressure are convenient to adjust, maintenance or replacement is convenient, the situation that outside oxygen enters the tin bath to pollute tin liquid and affect the quality of a glass plate can be effectively reduced, stable production operation of the tin bath can be effectively guaranteed, the stable production period of the tin bath can be effectively prolonged, and then the glass product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of float glass molding and manufacturing, and particularly relates to a tin bath exhaust device. Background Art

[0002] The forming process of float glass production is to introduce the molten glass into a tin bath filled with protective gas. The glass floats on the surface of the tin in the tin bath. Under the action of gravity and surface tension, the glass spreads, flattens, and hardens on the tin surface, and forms a glass ribbon with uniform thickness during its flow, that is, the original glass plate. The main equipment tin bath in the forming production process uses nitrogen and hydrogen mixed gas as the protective gas. In normal production, the flow rate of protective gas input to the tin bath is stable, and the discharge volume is stable, maintaining a slight positive pressure in the bath.

[0003] Since tin liquid is easily oxidized, in actual use, a small amount of oxygen will always penetrate into the tin bath, causing the tin liquid to oxidize, and easily produce highly volatile substances such as stannous oxide gas. During the gas exhaust process, due to the temperature drop, the stannous oxide gas remaining in the tin bath will become a solid powder containing tin compounds, called tin ash. If the tin ash falls onto the flat glass strip, the flat glass will be contaminated. In addition, since the solid powder containing tin compounds is easy to adhere to the tube wall, it will cause the gas exhaust holes to be blocked, making the exhaust effect worse. Therefore, a tin bath exhaust structure is proposed. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to solve the problem that external oxygen enters the tin bath to pollute the tin liquid and affect the quality of the glass plate.

[0005] The utility model provides a tin bath exhaust device, which is characterized by comprising an exhaust component and a sealing component;

[0006] The exhaust assembly is connected to the breast wall of the tin bath and is used to exhaust the gas in the tin bath;

[0007] The sealing component is connected to the exhaust component to ensure the air tightness of the exhaust component;

[0008] The exhaust assembly is also provided with an exhaust valve for adjusting the internal pressure and exhaust volume of the tin bath.

[0009] In some embodiments, the exhaust assembly includes a first exhaust pipe and a second exhaust pipe;

[0010] One end of the first exhaust pipe passes through the breast wall and is connected to the tin bath, and the other end is detachably connected to the sealing assembly;

[0011] The second exhaust pipe is communicated with the pipe wall of the first exhaust pipe, and the second exhaust pipe is detachably connected to the first exhaust pipe.

[0012] In some embodiments, the first exhaust pipe vertically penetrates the breast wall, or the first exhaust pipe penetrates the breast wall along a preset inclination angle.

[0013] In some embodiments, the second exhaust pipe is connected to the first exhaust pipe in a vertical direction.

[0014] In some embodiments, an exhaust hood is provided at one end of the second exhaust pipe that is not connected to the first exhaust pipe; and the exhaust hood is detachably connected to the second exhaust pipe.

[0015] In some embodiments, the air outlet cross section of the exhaust hood is inclined toward one side in the vertical direction to change the exhaust direction.

[0016] In some embodiments, the exhaust valve is a butterfly valve, and the exhaust valve is disposed in the first exhaust pipe or the second exhaust pipe.

[0017] In some embodiments, the sealing assembly includes an observation cover and a sealing cover; two ends of the observation cover are detachably connected to the first exhaust pipe and the sealing cover respectively.

[0018] In some embodiments, it is used to observe or maintain the inside of the tin bath.

[0019] In some embodiments, the cross-sectional area of ​​the end where the observation cover is connected to the first exhaust pipe is smaller than the cross-sectional area of ​​the end where the observation cover is connected to the sealing cover.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] The tin bath exhaust device provided by the utility model can observe or maintain the inside of the device by disassembling the sealing component, and can adjust the internal pressure and discharge volume of the device by setting the exhaust valve. For first exhaust pipes and second exhaust pipes of different sizes, the discharge volume range of the device can be rated in coordination with the opening of the exhaust valve, thereby effectively exhausting and clearing the oxygen or stannous oxide gas in the tin bath, and the device can be partially disassembled for maintenance or replacement, reducing on-site hole opening operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the components of the tin bath exhaust device according to an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the disassembly of the tin bath exhaust device according to an embodiment of the utility model.

[0024] A first exhaust pipe 1, a second exhaust pipe 2, an observation cover 3, a sealing cover 4, an exhaust valve 5, and an exhaust cover 6. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0026] like Figure 1 and Figure 2 As shown, the utility model provides a tin bath exhaust device, including an exhaust component and a sealing component;

[0027] The exhaust assembly is connected to the breast wall of the tin bath and is used to exhaust the gas in the tin bath;

[0028] The sealing component is connected to the exhaust component to ensure the air tightness of the exhaust component;

[0029] The exhaust assembly is also provided with an exhaust valve 5 for adjusting the internal pressure and exhaust volume of the tin bath.

[0030] Specifically, the present invention provides a tin bath exhaust device, which can be used for internal observation or maintenance through a sealing component, and the internal pressure and discharge volume of the device can be adjusted by setting an exhaust valve 5. The exhaust component is connected to the breast wall of the tin bath to exhaust the gas in the tin bath, and the oxygen or stannous oxide gas remaining in the tin bath can be effectively discharged and removed, thereby preventing the external oxygen from entering the tin bath and contaminating the tin liquid, affecting the quality of the glass plate.

[0031] In some embodiments, the exhaust assembly includes a first exhaust pipe 1 and a second exhaust pipe 2;

[0032] One end of the first exhaust pipe 1 passes through the breast wall and is connected to the tin bath, and the other end is detachably connected to the sealing assembly;

[0033] The second exhaust pipe 2 is communicated with the pipe wall of the first exhaust pipe 1 , and the second exhaust pipe 2 is detachably connected to the first exhaust pipe 1 .

[0034] Specifically, the exhaust assembly of the present solution includes a first exhaust pipe 1 and a second exhaust pipe 2, wherein one end of the first exhaust pipe 1 penetrates the breast wall and is connected to the tin bath, so that the gas in the tin bath can be connected to the first exhaust pipe 1, and then the second exhaust pipe 2 is connected to the pipe wall of the first exhaust pipe 1, so that the gas in the tin bath can enter the second exhaust pipe 2 along the first exhaust pipe 1, so as to achieve the effect of effectively discharging the gas inside the tin bath. In addition, in order to facilitate the maintenance of the device, the second exhaust pipe 2 is detachably connected to the first exhaust pipe 1.

[0035] In some embodiments, the first exhaust pipe 1 vertically penetrates the breast wall, or the first exhaust pipe 1 penetrates the breast wall along a preset inclination angle.

[0036] Specifically, in this solution, the direction of the first exhaust pipe 1 can be perpendicular to the breast wall. The first exhaust pipe 1 can also be made to penetrate the breast wall along a preset inclination angle according to the actual exhaust direction.

[0037] In some embodiments, the second exhaust pipe 2 is connected to the first exhaust pipe 1 in a vertical direction.

[0038] Specifically, in this solution, the direction of the second exhaust pipe 2 is vertically upward, and the position where it is connected to the first exhaust pipe 1 can be in the middle of the first exhaust pipe 1 or at the end of the first exhaust pipe 1 .

[0039] In some embodiments, an exhaust hood 6 is disposed at one end of the second exhaust pipe 2 that is not connected to the first exhaust pipe 1 ; the exhaust hood 6 is detachably connected to the second exhaust pipe 2 .

[0040] Specifically, in this solution, an exhaust hood 6 is provided on the end of the second exhaust pipe 2 that is not connected to the first exhaust pipe 1 (i.e., the end of the second exhaust pipe 2 that is away from the connection with the first exhaust pipe 1), which is used to guide the gas exhausted from the tin bath. Similarly, in order to facilitate disassembly and maintenance of the device, the exhaust hood 6 is detachably connected to the second exhaust pipe 2.

[0041] In a typical embodiment, the air outlet cross section of the exhaust hood 6 is inclined toward one side in the vertical direction to change the exhaust direction.

[0042] Specifically, in this solution, the air outlet cross section of the exhaust hood 6 is not perpendicular to the vertical direction, but is inclined to one side of the vertical direction, thereby changing the exhaust direction. Of course, the inclination angle can also be changed according to the actual exhaust direction requirements.

[0043] In some embodiments, the exhaust valve 5 is a butterfly valve, and the exhaust valve 5 is disposed in the first exhaust pipe 1 or the second exhaust pipe 2 .

[0044] Specifically, the exhaust valve 5 of this solution is a butterfly valve, which is used to adjust the internal pressure and discharge volume of the tin bath. The exhaust valve 5 can be installed in the first exhaust pipe 1 or the second exhaust pipe 2 or in the connection between the first exhaust pipe 1 and the second exhaust pipe 2 according to actual needs.

[0045] In some possible embodiments, a sensor is disposed inside the tin bath, which can be used to detect the internal gas content and determine whether oxygen or stannous oxide gas remains in the tin bath.

[0046] In some embodiments, the sealing assembly includes an observation cover 3 and a sealing cover 4; two ends of the observation cover 3 are detachably connected to the first exhaust pipe 1 and the sealing cover 4 respectively.

[0047] Specifically, the sealing component in the present embodiment not only plays a sealing role, but also includes an observation cover 3 and a sealing cover 4. The two ends of the observation cover 3 are detachably connected to the first exhaust pipe 1 and the sealing cover 4 respectively. The exhaust component can be observed through the observation cover 3, thereby facilitating the maintenance of the device, and the sealing cover 4 plays a sealing role.

[0048] In some embodiments, the observation cover 3 is funnel-shaped and is used for observing or maintaining the inside of the tin bath.

[0049] In some embodiments, the cross-sectional area of ​​the end where the observation cover 3 is connected to the first exhaust pipe 1 is smaller than the cross-sectional area of ​​the end where the observation cover 3 is connected to the sealing cover 4 .

[0050] Specifically, in order to facilitate observation of the exhaust assembly through the observation cover 3, the observation cover 3 of the present solution can be set to be funnel-shaped, and the cross-sectional area of ​​the end where the observation cover 3 is connected to the first exhaust pipe 1 is smaller than the cross-sectional area of ​​the end where the observation cover 3 is connected to the sealing cover 4. Furthermore, the surface of the sealing cover 4 can be made of transparent material, so that not only can the exhaust assembly be directly observed through the sealing cover 4 when the device is in working state, but also the condition of the glass liquid, the contact condition between the edge drawing machine and the glass, the condition of the upper heater of the tin bath, the oxidation condition of the tin liquid in the tin bath, and the take-off condition of the glass ribbon (the angle from which the glass ribbon enters the annealing furnace from the tin bath) can be observed.

[0051] In some embodiments, an opening baffle is also provided at the outlet of the exhaust hood 6; the opening baffle is fixed at the opening of the exhaust hood 6 and can rotate along a fixed point to adjust the opening of the exhaust hood 6; the opening baffle is also connected to a connecting rod, one end of which is rotatably connected to the opening baffle, so that the opening baffle can be directly adjusted through the connecting rod without the need to use a ladder to adjust it at the top of the tin bath.

[0052] In some embodiments, the tin bath exhaust device provided by the present invention is made of high temperature resistant material as a whole, and can withstand temperatures of 600°C to 1100°C, meeting the production requirements of the on-site environment.

[0053] During the implementation of this embodiment, the device is adaptively installed or set according to different needs, including:

[0054] A. Make corresponding tin bath exhaust device according to the breast wall position and size of the tin bath;

[0055] B. Install corresponding tin bath exhaust devices on the corresponding breast wall according to the exhaust range;

[0056] C. Adjust the corresponding sizes of the first exhaust pipe 1 and the second exhaust pipe 2 according to the exhaust volume.

[0057] In summary, the utility model is easy to disassemble and assemble, and has high flexibility. The installation position or pipeline size of the device can be adjusted accordingly according to different installation environments or requirements. The internal part of the device can be observed or maintained by disassembling the sealing component. The internal pressure and discharge volume of the device can be adjusted by setting the exhaust valve 5. For the first exhaust pipe 1 and the second exhaust pipe 2 of different sizes, the discharge volume range of the device can be rated by coordinating the opening of the exhaust valve 5. The device can be partially disassembled for maintenance or replacement, and meets the production requirements of the on-site environment (600℃~100℃). In this way, the balance in the tank can be relatively stabilized, thereby reducing the impact on the quality of the glass ribbon and the life of internal components.

[0058] Those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is meant to be within the scope of the present application and to form different embodiments.

[0059] Those skilled in the art will appreciate that the description of each embodiment has its own emphasis, and for parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] Although the embodiments of the present application are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope defined by the attached claims. The above are only specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present utility model, and these modifications or replacements should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be based on the protection scope of the claims.

[0061] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. Tin bath exhaust device, characterized in that: Including exhaust components and sealing components; The exhaust assembly is connected to the breast wall of the tin bath and is used to exhaust the gas in the tin bath; The sealing component is connected to the exhaust component to ensure the air tightness of the exhaust component; The exhaust assembly is also provided with an exhaust valve for adjusting the internal pressure and exhaust volume of the tin bath.

2. The tin bath exhaust device according to claim 1, characterized in that: The exhaust assembly includes a first exhaust pipe and a second exhaust pipe; One end of the first exhaust pipe passes through the breast wall and is connected to the tin bath, and the other end is detachably connected to the sealing assembly; The second exhaust pipe is communicated with the pipe wall of the first exhaust pipe, and the second exhaust pipe is detachably connected to the first exhaust pipe.

3. The tin bath exhaust device according to claim 2, characterized in that: The first exhaust pipe vertically penetrates the breast wall, or the first exhaust pipe penetrates the breast wall along a preset inclination angle.

4. The tin bath exhaust device according to claim 2, characterized in that: The second exhaust pipe is communicated with the first exhaust pipe in a vertical direction.

5. The tin bath exhaust device according to claim 4, characterized in that: An exhaust hood is provided at one end of the second exhaust pipe that is not connected to the first exhaust pipe; the exhaust hood is detachably connected to the second exhaust pipe.

6. The tin bath exhaust device according to claim 5, characterized in that: The air outlet cross section of the exhaust hood is inclined toward one side in the vertical direction to change the exhaust direction.

7. The tin bath exhaust device according to claim 2, characterized in that: The exhaust valve is a butterfly valve, and the exhaust valve is arranged in the first exhaust pipe or the second exhaust pipe.

8. The tin bath exhaust device according to claim 2, characterized in that: The sealing assembly comprises an observation cover and a sealing cover; two ends of the observation cover are detachably connected to the first exhaust pipe and the sealing cover respectively.

9. The tin bath exhaust device according to claim 8, characterized in that: The observation cover is funnel-shaped and is used for observing or maintaining the inside of the tin bath.

10. The tin bath exhaust device according to claim 9, characterized in that: The cross-sectional area of ​​the connection end of the observation cover with the first exhaust pipe is smaller than the cross-sectional area of ​​the connection end with the sealing cover.

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