A gas delivery device and a float glass production apparatus

Abstract

The utility model belongs to float glass technical equipment field especially relates to a kind of air feeding device and float glass production equipment.The air feeding device includes: air tank, buffer tank and filter, air tank is used to store gas, buffer tank has accommodating cavity, and buffer tank is opened with the gas inlet and gas outlet that all communicate accommodating cavity, gas inlet and gas outlet are connected with air tank and filter respectively, gas flows out from air tank, and flows into accommodating cavity through gas inlet;Buffer tank is used to stabilize the gas in accommodating cavity, and makes gas flow into filter through gas outlet;Filter is used to filter gas, and filter after gas is sprayed to predetermined area.The utility model can make clean and pressure stable sulfur dioxide gas, be evenly sprayed to glass tin liquid surface, finally improve the preparation quality of float glass.

Description

Technical Field

[0001] This utility model belongs to the field of float glass technology and equipment, and particularly relates to a gas supply device and float glass production equipment. Background Technology

[0002] In float glass production, the molten glass gradually cools and solidifies after flowing and leveling at high temperature in a tin bath, and then gains a certain strength. At this point, the glass strip needs to be lifted from the molten tin surface by roller conveyors, removed from the tin bath, and entered into an annealing furnace to further stabilize its structure.

[0003] However, during the contact process between the glass ribbon and the roller surface, substances such as sulfur oxides and sulfur dioxide easily accumulate on the roller surface due to high-temperature oxidation or molten tin evaporation. When these substances come into contact with the lower surface of the glass, they can easily cause quality defects such as tin adhesion, tin scratches, scratches, or micro-pits, affecting the surface quality and optical properties of the glass. To effectively alleviate this problem, sulfur dioxide is usually introduced into the slag box at the tin bath outlet. The main function of sulfur dioxide is to optimize the surface properties of the glass through chemical regulation, suppress tin defects, and improve the adaptability to subsequent processing.

[0004] However, currently, after the sulfur dioxide flows out of the sulfur dioxide tank, the flow rate is adjusted by a flow meter before it enters the slag box at the tin bath outlet and is sprayed onto the surface of the glass molten tin. As the sulfur dioxide flows out, it carries away impurities from inside the tank. These impurities flow onto the surface of the glass plate, and the impurities in the sulfur dioxide can easily clog the sulfur dioxide spray nozzles, causing uneven spraying. Simultaneously, the pressure inside the sulfur dioxide tank becomes unstable over time, further affecting the uniformity of spraying and ultimately reducing the quality of the glass plate. Utility Model Content

[0005] The purpose of this application is to provide an air supply device that aims to solve the problem of how to improve the quality of float glass production.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] In a first aspect, a gas delivery device is provided for delivering gas. The gas delivery device includes a gas storage tank, a buffer tank, and a filter. The gas storage tank stores the gas. The buffer tank has a accommodating cavity and is provided with an inlet and an outlet, both connected to the accommodating cavity. The inlet and the outlet are respectively connected to the gas storage tank and the filter. The gas flows out of the gas storage tank and into the accommodating cavity through the inlet. The buffer tank is used to stabilize the gas in the accommodating cavity and to allow the gas to flow into the filter through the outlet. The filter is used to filter the gas and spray the filtered gas into a predetermined area.

[0008] In some embodiments, the height of the buffer tank is arranged vertically, and the height of the air outlet is greater than the height of the air inlet.

[0009] In some embodiments, the gas delivery device further includes an air inlet pipe that connects the gas storage tank and the air inlet.

[0010] In some embodiments, the air supply device further includes a first flange disposed at the air inlet and a second flange disposed on the air inlet pipe, wherein the first flange is sealed to the second flange so that the air inlet pipe communicates with the receiving cavity through the air inlet.

[0011] In some embodiments, the air supply device further includes an air outlet pipe that connects the air outlet and the filter.

[0012] In some embodiments, the air supply device further includes a third flange disposed at the air outlet and a fourth flange disposed on the air outlet pipe, wherein the third flange is sealed to the fourth flange so that the air outlet pipe communicates with the receiving cavity through the air outlet.

[0013] In some embodiments, the filter includes a filter canister and a filter element located within the filter canister. The filter canister has an air inlet and an air outlet. The air inlet is connected to the air outlet, and the air outlet is connected to the nozzle.

[0014] In some embodiments, the filter element includes a filter layer and two filter screens located within the filter canister, the filter screens being disposed opposite each other, and the filter layer filling the space between the two filter screens.

[0015] In some embodiments, the filter further includes a drain pipe connected to the filter tank for discharging foreign matter from the filter tank.

[0016] Secondly, a float glass production apparatus is provided, which includes the gas supply device and the float glass production apparatus further includes a tin bath outlet slag box, and the filter is used to spray the gas into the tin bath outlet slag box.

[0017] The beneficial effects of this application are as follows: by connecting the gas storage tank, buffer tank, and filter in sequence through pipelines, the sulfur dioxide gas stored in the gas storage tank flows into the buffer tank for pressure stabilization, so that the sulfur dioxide gas pressure is kept stable and pressure fluctuations are reduced, and then the sulfur dioxide gas flows into the filter through the gas outlet, so that clean and pressure-stable sulfur dioxide gas can be evenly sprayed onto the glass tin melt surface, ultimately improving the preparation quality of float glass. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structural principle of the air delivery device provided in the embodiments of this application;

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of the buffer tank;

[0021] Figure 3 yes Figure 2 This is a top view of the buffer tank;

[0022] Figure 4 yes Figure 1 A schematic diagram of the structure and principle of the filter in the air supply device.

[0023] The following are the labeling elements in the figure:

[0024] 100. Air supply device; 10. Air inlet pipe; 11. Control valve; 12. Drain valve; 20. Buffer tank; 21. Air inlet; 22. Air outlet; 221. First flange; 222. Second flange; 223. Third flange; 224. Fourth flange; 40. Air outlet pipe; 121. Drain pipe; 50. Exhaust pipe; 30. Filter; 31. Filter tank body; 32. Filter element; 311. Tank body; 312. End cap; 321. Filter screen; 322. Filter layer; 331. Air inlet; 332. Air outlet. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, and are for ease of description only, not to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly defined.

[0027] Please see Figures 1 to 3 This application provides a gas supply device 100 and a float glass production apparatus having the same. The gas supply device 100 is used to deliver gas to a predetermined area. In this embodiment, the gas is sulfur dioxide gas, and the predetermined area is the slag box at the outlet of the tin bath. The gas supply device 100 can deliver sulfur dioxide gas to the slag box at the outlet of the tin bath. In other embodiments, the gas can also be other gases, such as oxygen.

[0028] Please see Figures 1 to 3 The gas delivery device 100 includes: a gas storage tank, a buffer tank 20, and a filter 30. The gas storage tank is used to store the sulfur dioxide gas, and the buffer tank 20 has a accommodating cavity. The height of the gas storage tank and the buffer tank 20 are both arranged in a vertical direction. The buffer tank 20 has an inlet 21 and an outlet 22 that are both connected to the accommodating cavity. The inlet 21 and the outlet 22 are respectively connected to the gas storage tank and the filter 30. The sulfur dioxide gas flows out from the gas storage tank and into the accommodating cavity through the inlet 21. The buffer tank 20 is used to stabilize the pressure of the sulfur dioxide gas in the accommodating cavity. After the pressure of the sulfur dioxide gas stabilizes, the sulfur dioxide gas flows into the filter 30 through the outlet 22. The filter 30 is used to filter the sulfur dioxide gas, so that the impurities of the sulfur dioxide gas are retained in the filter 30, and the filtered sulfur dioxide gas is sprayed onto a predetermined area, which is the slag box at the outlet of the tin bath. The filtered sulfur dioxide gas is sprayed onto the surface of the glass tin liquid.

[0029] Please see Figures 1 to 3The gas delivery device 100 provided in this application embodiment connects a gas storage tank, a buffer tank 20, and a filter 30 in sequence through a pipeline. The sulfur dioxide gas stored in the gas storage tank flows into the buffer tank 20 for pressure stabilization, so that the sulfur dioxide gas pressure is kept stable and pressure fluctuations are reduced. Then, the sulfur dioxide gas flows into the filter 30 through the gas outlet 22, so that clean and pressure-stable sulfur dioxide gas can be evenly sprayed onto the glass tin melt surface, ultimately improving the preparation quality of float glass.

[0030] Optionally, the buffer tank 20 is cylindrical with a height of 400mm, and the material of the buffer tank 20 can be stainless steel, such as 316 stainless steel. 316 stainless steel is a high-quality austenitic stainless steel containing elements such as chromium, nickel and molybdenum, and has excellent corrosion resistance and high-temperature resistance.

[0031] The buffer tank 20 has a circular cross-sectional shape with a diameter of 400 mm and a thickness of 10 mm.

[0032] Please see Figures 1 to 3 In some embodiments, the height of the buffer tank 20 is arranged vertically, and the height of the air outlet 22 is greater than the height of the air inlet 21.

[0033] Optionally, sulfur dioxide gas flows into the containment chamber from the lower inlet 21 and then flows out of the containment chamber from the higher outlet 22. In this way, heavier or larger impurities first settle at the bottom of the containment chamber, which can reduce the filtration pressure of the filter 30. Moreover, the gravity-assisted flow of sulfur dioxide gas can improve the pressure stabilization effect, making the sulfur dioxide gas pressure in the containment chamber more stable, reducing the pressure fluctuation rate, reducing the floating and accumulation of impurities in the sulfur dioxide gas, and improving the subsequent filtration efficiency and spray uniformity.

[0034] Please see Figures 1 to 3 In some embodiments, the gas delivery device 100 further includes an air inlet pipe 10, which connects the gas storage tank and the air inlet 21.

[0035] Optionally, the air intake pipe 10 has a circular cross-sectional shape and an inner diameter of 20mm. The air intake pipe 10 is also equipped with a control valve 11, which can be used to open and close the air intake pipe 10.

[0036] The intake pipe 10 provides a closed transmission path, ensuring that sulfur dioxide gas flows smoothly from the storage tank into the buffer tank 20. This improves the reliability of the pressure stabilization process, reduces the introduction of impurities, and thus enhances the uniformity and purity of sulfur dioxide gas spraying. It also improves the chemical regulation effect of sulfur dioxide on the glass surface in float glass production equipment, suppresses tin defects, and improves glass quality.

[0037] Alternatively, the intake pipe 10 can be made of metal, such as stainless steel.

[0038] In some embodiments, the air supply device 100 further includes a first flange 221 disposed at the air inlet 21 and a second flange 222 disposed on the air inlet pipe 10, wherein the first flange 221 is sealed to the second flange 222 so that the air inlet pipe 10 communicates with the accommodating cavity through the air inlet 21.

[0039] Optionally, a sealing ring can be provided between the first flange 221 and the second flange 222 to improve the sealing performance between the first flange 221 and the second flange 222, ensure seamless connection between the air inlet pipe 10 and the accommodating cavity, improve the stability and purity of sulfur dioxide gas transmission, reduce pressure loss, thereby improving pressure stability and enhancing the uniformity of sulfur dioxide gas spraying in float glass production.

[0040] It is also understandable that the first flange 221 and the second flange 222 are fastened together by bolts and nuts. The fastening connection of bolts and nuts can improve the convenience of installation and disassembly of the first flange 221 and the second flange 222.

[0041] Please see Figures 1 to 3 In some embodiments, the air supply device 100 further includes an air outlet pipe 40, which connects the air outlet 22 and the filter 30.

[0042] Optionally, the cross-sectional shape of the air outlet pipe 40 is circular, and the inner diameter of the air outlet pipe 40 is 20mm. The air outlet pipe 40 is also provided with a control valve 11, which can be used to open and close the air outlet pipe 40.

[0043] The outlet pipe 40 provides a closed transmission channel, ensuring that the sulfur dioxide gas flows smoothly into the filter 30 after pressure stabilization, which improves filtration efficiency, reduces the risk of clogging of the spray nozzle, and thus achieves uniform spraying of sulfur dioxide gas, improving the stability and surface quality of the glass.

[0044] Please see Figure 1 and Figure 4 In some embodiments, the air supply device 100 further includes a third flange 223 disposed at the air outlet 22 and a fourth flange 224 disposed on the air outlet pipe 40. The third flange 223 is sealed to the fourth flange 224 so that the air outlet pipe 40 communicates with the receiving cavity through the air outlet 22.

[0045] Please see Figure 1 and Figure 4Optionally, a sealing ring can be provided between the third flange 223 and the fourth flange 224 to improve the sealing performance between the third flange 223 and the fourth flange 224, ensure seamless connection between the gas outlet pipe 40 and the filter 30, improve the stability and purity of sulfur dioxide gas transmission, reduce pressure loss, thereby improving pressure stability and ultimately enhancing the uniformity of sulfur dioxide gas spraying in float glass production.

[0046] It is also understandable that the third flange 223 and the fourth flange 224 are fastened together by bolts and nuts, which can improve the convenience of installation and disassembly of the third flange 223 and the fourth flange 224.

[0047] Please see Figure 1 and Figure 4 In some embodiments, the filter 30 includes a filter tank 31 and a filter element 32 located inside the filter tank 31. The filter tank 31 has an air inlet 331 and an air outlet 332. The air inlet 331 is connected to the air outlet 22, and the air outlet 332 is connected to the nozzle.

[0048] Optionally, the filter tank 31 includes a tank body 311 with a filter chamber and an end cap 312 connected to the tank body 311. The tank body 311 has a filter port communicating with the filter chamber, and the end cap 312 is detachably fitted onto the filter port. The filter element 32 is located inside the filter chamber.

[0049] Please see Figure 1 and Figure 4 Optionally, the tank body 311 is arranged vertically, and the height of the air outlet 332 is greater than the height of the air inlet 331, so that impurities are retained in the filter chamber as much as possible, reducing the amount of impurities flowing out from the high air outlet 332, avoiding clogging the nozzle, and improving the uniformity of spraying.

[0050] Please see Figure 1 and Figure 4 It is understood that the air supply device 100 also includes an exhaust pipe 50 with an inner diameter of 15mm. The exhaust pipe 50 connects the nozzle and the air outlet 332. The exhaust pipe 50 and the air outlet 332 can be connected by the flange structure described above, which will not be elaborated here.

[0051] It is understandable that a similar flange structure could be used between the air inlet 331 and the air outlet 40, which will not be elaborated here.

[0052] Please see Figure 1 and Figure 4In some embodiments, the filter element 32 includes a filter layer 322 and a filter screen 321 located in the filter tank 31. Two filter screens 321 are arranged opposite each other, and the filter layer 322 fills the space between the two filter screens 321.

[0053] Optionally, the filter screen 321 has multiple filter holes, and the pore size of the filter screen 321 is 50 mesh.

[0054] Please see Figure 1 and Figure 4 Multi-stage filtration is achieved through the combination of filter screen 321 and filter layer 322. Filter screen 321 filters out larger impurities, while filter layer 322 filters out smaller impurities. Sulfur dioxide gas flows sequentially through one filter screen 321, filter layer 322, and another filter screen 321. Filter layer 322 can adsorb fine impurities, improving the overall filtration durability and effectiveness, reducing the frequency of nozzle clogging, thereby ensuring uniform spraying of sulfur dioxide gas, enhancing the optimization effect of sulfur dioxide on the glass surface in float glass production, suppressing defects, and improving glass quality.

[0055] Optionally, multiple filter screens 321 are arranged in a sleeve-like shape, and a filter layer 322 is filled inside the sleeve-like filter screens 321.

[0056] Please see Figure 1 and Figure 4 In some embodiments, the filter 30 further includes a drain pipe 121 connected to the filter tank 31, the drain pipe 121 being used to discharge foreign matter from the filter tank 31.

[0057] Optionally, foreign matter in the filter chamber can be discharged in a timely manner through the drain pipe 121 to maintain the cleanliness and long-term performance of the filter element 32, reduce the risk of clogging, improve the stability and spray uniformity of sulfur dioxide gas filtration, enhance the purity control of sulfur dioxide in the slag box at the outlet of the float glass tin bath, and reduce the incidence of quality defects on the lower surface of the glass.

[0058] Please see Figure 1 and Figure 4 This utility model also proposes a float glass production equipment, which includes an air supply device 100. The specific structure of the air supply device 100 is as described in the above embodiments. Since this float glass production equipment adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0059] In some embodiments, the float glass production equipment further includes a tin bath outlet slag box, and the filter 30 is used to spray the sulfur dioxide gas into the tin bath outlet slag box.

[0060] Optionally, sulfur dioxide gas is sprayed after being filtered and stabilized by a gas supply device 100 to suppress the volatilization and oxidation of molten tin, thereby improving the surface quality of the glass plate after it leaves the tin bath, enhancing structural stability and optical performance, reducing production costs and increasing product qualification rate.

[0061] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A gas delivery device for conveying gas, characterized in that, The gas delivery device includes a gas storage tank, a buffer tank, and a filter. The gas storage tank stores the gas. The buffer tank has a accommodating cavity and is provided with an inlet and an outlet that are both connected to the accommodating cavity. The inlet and the outlet are respectively connected to the gas storage tank and the filter. The gas flows out of the gas storage tank and into the accommodating cavity through the inlet. The buffer tank is used to stabilize the gas in the accommodating cavity and to allow the gas to flow into the filter through the outlet. The filter is used to filter the gas and spray the filtered gas into a predetermined area.

2. The air supply device as described in claim 1, characterized in that: The height of the buffer tank is arranged vertically, and the height of the air outlet is greater than the height of the air inlet.

3. The air supply device as described in claim 1, characterized in that: The gas delivery device also includes an air inlet pipe, which connects the gas storage tank and the air inlet.

4. The air supply device as described in claim 3, characterized in that: The air supply device further includes a first flange disposed at the air inlet and a second flange disposed on the air inlet pipe. The first flange is sealed to the second flange so that the air inlet pipe communicates with the accommodating cavity through the air inlet.

5. The air supply device as described in any one of claims 1-4, characterized in that: The air supply device also includes an air outlet pipe, which connects the air outlet and the filter.

6. The air supply device as described in claim 5, characterized in that: The air supply device further includes a third flange located at the air outlet and a fourth flange located on the air outlet pipe. The third flange is sealed to the fourth flange so that the air outlet pipe communicates with the receiving cavity through the air outlet.

7. The air supply device as described in any one of claims 1-4, characterized in that: The filter includes a filter tank and a filter element located inside the filter tank. The filter tank has an air inlet and an air outlet. The air inlet is connected to the air outlet, and the air outlet is connected to the nozzle.

8. The air supply device as described in claim 7, characterized in that: The filter element includes a filter layer and a filter screen located inside the filter tank. Two filter screens are arranged opposite each other, and the filter layer fills the space between the two filter screens.

9. The air supply device as described in claim 8, characterized in that: The filter also includes a drain pipe connected to the filter tank, the drain pipe being used to discharge foreign matter from the filter tank.

10. A float glass production equipment, characterized in that: The float glass production equipment includes the gas supply device as described in any one of claims 1-9, and further includes a tin bath outlet slag box, wherein the filter is used to spray the gas into the tin bath outlet slag box.

Images