Tubular glass kiln device

Abstract

A tubular glass kiln device is characterized in that the tubular glass kiln device comprises a first tubular member, a second tubular member, a third tubular member, a fourth tubular member and a fifth tubular member, and the first tubular member, the third tubular member and the fifth tubular member are arranged in the first direction at intervals; the second tubular member is transversely connected between the first tubular member and the third tubular member, and the fourth tubular member is transversely connected between the third tubular member and the fifth tubular member. The interiors of the first tubular member, the second tubular member, the third tubular member, the fourth tubular member and the fifth tubular member are sequentially communicated to form a glass liquid flowing channel. The tubular glass kiln device disclosed by the invention is formed by assembling tubular components instead of being built by bricks, and a small glass kiln can be assembled by processing or customizing parts, so that funds for building the glass kiln can be greatly reduced, and enterprises with small and medium fund scales can be facilitated to produce glass.

Description

Technical Field

[0001] The present invention relates to a glass production device, in particular to a tubular glass furnace device. Background Art

[0002] Glass kilns are high-temperature furnaces used to manufacture glass. They melt raw materials at high temperatures to form molten glass, which is then processed through various processes (such as blowing, pressing, and drawing) into the desired glass products. Existing glass kilns are typically constructed from bricks, cement, steel bars, and other materials, making them suitable for large-scale production. However, the construction costs of glass kilns are very high, often costing tens of millions of yuan.

[0003] Therefore, the existing glass kiln construction method is not suitable for small-batch production, and due to its high cost, only companies with very strong financial resources can build glass kilns for glass production, while other small and medium-sized enterprises cannot build glass kilns for glass production due to limited funds.

[0004] Therefore, if a glass kiln that is suitable for small-batch production, has significantly reduced costs, is easy to process, and can solve the problems of processing accuracy and cost can be provided, it will surely meet the actual needs of the market. Summary of the Invention

[0005] The present invention aims to solve the above problems and provide a tubular glass furnace device which is suitable for small batch production, has low cost, and is easy to process and assemble.

[0006] To solve the above problems, the present invention provides a tubular glass furnace device, characterized in that it includes a first tubular member, a second tubular member, a third tubular member, a fourth tubular member and a fifth tubular member, the first tubular member, the third tubular member and the fifth tubular member are arranged along a first direction and spaced apart from each other, the second tubular member is transversely connected between the first tubular member and the third tubular member, the fourth tubular member is transversely connected between the third tubular member and the fifth tubular member, and the interiors of the first tubular member, the second tubular member, the third tubular member, the fourth tubular member and the fifth tubular member are connected in sequence to form a glass liquid circulation channel.

[0007] Furthermore, the second tubular member is perpendicular to the first tubular member and the third tubular member; the fourth tubular member is perpendicular to the third tubular member and the fifth tubular member; and in the first direction, the height of the fourth tubular member is higher than the height of the second tubular member.

[0008] Furthermore, the internal channel of the first tubular component is used to provide a melting zone to melt the glass raw material at a high temperature into high-temperature molten glass; at least part of the internal channels of the second tubular component, the third tubular component and the fourth tubular component are used to provide a clarification zone to clarify the high-temperature molten glass; the fifth tubular component is used to provide a cooling zone, which is provided with a discharge port for the molten glass to flow out.

[0009] Furthermore, the first tubular member, the second tubular member, the third tubular member, the fourth tubular member and the fifth tubular member each include at least one section of tubular body made of a first high-temperature material, and the first high-temperature material can be heated by electromagnetic induction.

[0010] Furthermore, the first high-temperature material is a non-metallic high-temperature resistant material containing carbon elements, which includes one or more of graphite materials, silicon carbide materials, and silicon carbide-graphite composite materials.

[0011] Furthermore, a first mounting hole and a second mounting hole are respectively provided at both ends of the second tubular member along the first direction, and a third mounting hole and a fourth mounting hole are respectively provided at both ends of the fourth tubular member along the first direction; a feed port is provided at the upper end of the first tubular member for allowing glass raw materials to enter the interior of the first tubular member; the lower end of the first tubular member is connected to the first mounting hole; the lower end of the third tubular member is connected to the second mounting hole; the upper end of the third tubular member is connected to the third mounting hole; the upper end of the fifth tubular member is connected to the fourth mounting hole; and the lower end of the fifth tubular member provides the discharge port.

[0012] Furthermore, the first mounting hole is a stepped hole, and the lower end of the first tubular member is at least partially threaded into the first mounting hole; the second mounting hole is a stepped hole, and the lower end of the third tubular member is at least partially threaded into the second mounting hole; the third mounting hole is a stepped hole, and the upper end of the third tubular member is at least partially threaded into the third mounting hole; the fourth mounting hole is a stepped hole, and the upper end of the fifth tubular member is at least partially threaded into the fourth mounting hole.

[0013] Furthermore, the first tubular component includes a first outer tube and a first inner tube, and the first inner tube is sleeved inside the first outer tube; the second tubular component includes a second outer tube and a second inner tube, and the second inner tube is sleeved inside the second outer tube; the third tubular component includes a third outer tube and a third inner tube, and the third inner tube is sleeved inside the third outer tube; the fourth tubular component includes a fourth outer tube and a fourth inner tube, and the fourth inner tube is sleeved inside the fourth outer tube; the fifth tubular component includes a fifth outer tube and a fifth inner tube, and the fifth inner tube is sleeved inside the fifth outer tube; wherein, the first outer tube, the second outer tube, the third outer tube, the fourth outer tube, and the fifth outer tube are made of a first high-temperature material, and the first inner tube, the second inner tube, the third inner tube, the fourth inner tube, and the fifth inner tube are made of a second high-temperature material, and the second high-temperature material is different from the first high-temperature material.

[0014] Furthermore, heating devices are respectively provided outside the first tubular component and the third tubular component, and the heating devices can heat the first tubular component and the third tubular component to a desired temperature through electromagnetic induction; the highest temperature area in the glass liquid circulation channel is set in the third tubular component, and when the glass liquid flows into the third tubular component, the high temperature and the bottom-up flow mode can facilitate the escape of bubbles in the glass liquid.

[0015] The beneficial contribution of the present invention is that it effectively solves the above problems. Compared with existing glass furnaces, the tubular glass furnace device of the present invention has the following advantages:

[0016] 1. It is connected by tubular components and does not require brick masonry. Tubular components can be purchased or customized directly, and occupy a small area, so the cost is low, which can greatly reduce the capital for building a glass kiln factory. It is suitable for production by small and medium-sized enterprises.

[0017] 2. The tubular kiln structure is highly flexible and suitable for small-batch production. Compared with traditional brick-type kilns, the present invention can melt a smaller tonnage of glass per unit time, which is conducive to precise glass melting, especially for small-tonnage continuous production of flexible glass, and can accurately control the production rhythm and parameters.

[0018] 3. It can reduce the overall height of the glass kiln and the construction difficulty of the glass kiln, and it occupies a small area. It can be combined with the subsequent forming process to form a vertical tower structure to reduce investment costs and increase space utilization.

[0019] 4. The present invention uses tubular components to provide a flow channel for the molten glass, resulting in a smooth furnace wall. Unlike traditional brick kilns, which experience bricks falling off at high temperatures and becoming difficult to dissolve, thus preventing the formation of glass defects and stones, this invention reduces the formation of stones and helps improve the yield of molten glass.

[0020] 5. Compared with the traditional brick-type kiln, the tubular glass kiln device of the present invention has a smaller heating area and higher temperature resistance of the tubes, so it can increase the upper limit of the melting temperature, better melt the insoluble objects in the raw materials, and reduce the generation of glass stones.

[0021] 6. The tubular glass furnace device of the present invention adopts top feeding. The glass moves downward after melting and moves from bottom to top in the clarification zone, which is beneficial to glass clarification and bubble reduction, thereby improving product quality.

[0022] 7. In the present invention, the vertically arranged tubular member is directly connected to the horizontally arranged tubular member. It has a simple structure and can be accurately positioned and installed through hole matching and threaded connection. No other fasteners are required for fastening. It is not only easy to install but also can greatly reduce production costs.

[0023] 8. In some embodiments of the present invention, the various parts of the structure that are in direct contact with the glass liquid are arranged in the form of a graphite tube-in-corundum tube. This can not only give full play to the advantages of the graphite tube - low cost, easy processing, and high processing and assembly accuracy, but also avoid the disadvantages of the graphite tube - easy oxidation and slagging at high temperatures, and it has strong practicality; on the other hand, the thermal expansion coefficient of the graphite tube is much lower than that of metal, and it will not soften or deform at 2000 degrees Celsius. Using the graphite tube as the base structure for connection can ensure both installation accuracy and structural reliability, and effectively solve the problems of temperature resistance and assembly accuracy of the kiln device.

[0024] 9. In the present invention, three vertically arranged tubular components are provided. In the third tubular component 30, the molten glass flows from bottom to top, and the temperature inside the third tubular component 30 is the highest. This not only melts the refractory material and improves the melting quality, but also facilitates the escape of bubbles and improves the clarification effect.

[0025] The tubular glass furnace device of the present invention is formed by connecting tubular components, has a novel structure, is convenient for processing, can greatly reduce costs, has strong practicality, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is another structural schematic diagram of the present invention.

[0028] Figure 3 It is another structural schematic diagram of the present invention.

[0029] Figure identification: first tubular component 10, first outer tube 11, first inner tube 12, first through hole 121, feed port 13, second tubular component 20, second outer tube 21, second inner tube 22, first mounting hole 23, second mounting hole 24, first axial hole 25, third tubular component 30, third outer tube 31, third inner tube 32, second through hole 321, third through hole 322, fourth tubular component 40, fourth outer tube 41, fourth inner tube 42, third mounting hole 43, fourth mounting hole 44, second axial hole 45, fifth tubular component 50, fifth outer tube 51, fifth inner tube 52, fourth through hole 521, discharge port 53, orifice plate 60, pipe fitting 70, plug 80, sensor component 90. DETAILED DESCRIPTION

[0030] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0031] like Figures 1 to 3 As shown, the main feature of the tubular glass furnace device of the present invention is that it is not made of bricks, but is assembled by tubular components. Small glass furnaces can be assembled by processing or customizing parts, thereby greatly reducing the capital for building a glass furnace factory, which is beneficial for small and medium-sized enterprises to produce glass.

[0032] The tubular glass furnace device of the present invention includes a first tubular component 10 , a second tubular component 20 , a third tubular component 30 , a fourth tubular component 40 and a fifth tubular component 50 .

[0033] The first tubular member 10, the third tubular member 30 and the fifth tubular member 50 are arranged along a first direction and are spaced apart from each other. In this application, the first direction is a vertical direction, that is, a gravity direction.

[0034] The second tubular member 20 is laterally connected between the first tubular member 10 and the third tubular member 30. The second tubular member 20 is used to connect and communicate the interiors of the first tubular member 10 and the third tubular member 30, providing a channel for the circulation of molten glass.

[0035] The fourth tubular member 40 is laterally connected between the third tubular member 30 and the fifth tubular member 50. The fourth tubular member 40 is used to connect and communicate the interiors of the third tubular member 30 and the fifth tubular member 50, providing a channel for the circulation of molten glass.

[0036] In this way, the interiors of the first tubular member 10 , the second tubular member 20 , the third tubular member 30 , the fourth tubular member 40 and the fifth tubular member 50 are sequentially connected to form a glass liquid flow channel.

[0037] When the second tubular member 20 is disposed horizontally, it is substantially perpendicular to the first tubular member 10 and the third tubular member 30. Preferably, the second tubular member 20 is perpendicular to the first tubular member 10 and the third tubular member 30. Of course, a slight inclination is also acceptable, as long as the second tubular member 20 is substantially perpendicular to the first tubular member 10 as a whole.

[0038] Likewise, the fourth tubular member 40 is disposed transversely and is substantially perpendicular to the third tubular member 30 and the fifth tubular member 50 , and preferably perpendicular to the third tubular member 30 and the fifth tubular member 50 .

[0039] Furthermore, in the first direction, the height of the fourth tubular member 40 is higher than the height of the second tubular member 20. Thus, when the molten glass flows in the molten glass flow channel, it flows from the second tubular member 20 into the third tubular member 30, then flows from bottom to top within the third tubular member 30, then enters the fourth tubular member 40, flows nearly horizontally within the fourth tubular member 40, then flows into the fifth tubular member 50, flows from top to bottom within the fifth tubular member 50, and then flows out to the next process step.

[0040] Typically, small bubbles are present in molten glass. To ensure the yield of glass products, the molten glass needs to be defoamed. In this application, the fourth tubular member 40 is higher than the second tubular member 20, forcing the molten glass to flow upward within the third tubular member 30. This allows bubbles in the molten glass to float upward and overflow at the top, thus facilitating the removal of bubbles from the molten glass.

[0041] Furthermore, the internal passage of the first tubular member 10 is used to provide a melting zone for melting glass raw materials at high temperatures into hot molten glass. Typically, glass raw materials are solid glass particles that melt into molten glass at high temperatures. The melting temperature varies depending on the type of glass raw materials and the desired glass product. This embodiment does not impose a limit on the melting temperature of the first tubular member 10; reference can be made to existing techniques. The temperature should be set so that the glass raw materials melt within the first tubular member 10 to form molten glass.

[0042] Furthermore, in some embodiments, to facilitate more complete melting of the glass material within the first tubular member 10, a perforated plate 60 is provided within the first tubular member 10. The perforated plate 60, disposed transversely within the first tubular member 10, reduces the sinking velocity of the glass material within the first tubular member 10, thereby allowing the glass material to pass through the first tubular member 10 for a longer period of time, thereby extending the heating time and allowing the glass material to melt more completely. Furthermore, the perforated plate 60 can also act as a barrier to particulate matter. If the glass material particles are large, they cannot pass through the perforated plate 60 and remain there, receiving high-temperature heating until they melt. This allows the particulate matter to be fully melted, resulting in more complete melting of the glass material and, in turn, improving the quality of the molten glass.

[0043] Furthermore, in some embodiments, the orifice plate 60 can be positioned transversely within the first tubular member 10 by overlapping the first tubular member 10. For example, a stepped structure can be formed on the inner wall of the first tubular member 10, with the orifice plate 60 resting directly on the stepped structure. As the raw glass material or molten glass flows downward, its gravity compresses the orifice plate 60, preventing it from moving and maintaining a substantially stable position. Furthermore, this structure reduces processing and assembly requirements, making it highly convenient to implement.

[0044] The number of the orifice plates 60 can be set as needed, and can be one or more. If multiple orifice plates 60 are provided, they can be spaced apart along the first direction.

[0045] At least portions of the internal passages of the second tubular member 20, the third tubular member 30, and the fourth tubular member 40 can be used to provide a clarification zone for clarifying the high-temperature molten glass. Clarification involves removing impurities and gases from the molten glass. Impurities include, but are not limited to, unmelted raw material particles. Gases in the molten glass manifest as bubbles.

[0046] In this application, because the fourth tubular member 40 is taller than the second tubular member 20, the molten glass is forced to flow upward in the third tubular member 30. Light bubbles float upward and escape at the top of the molten glass, significantly reducing or eliminating bubbles in the molten glass. As a result, the molten glass flowing into the fourth tubular member 40 is essentially bubble-free. Furthermore, impurities, being heavier, are more likely to sink to the bottom of the third tubular member 30, accumulating at the bottom of the third tubular member 30 and reducing the amount of impurities in the molten glass.

[0047] Furthermore, to further facilitate bubble elimination, the highest temperature region within the molten glass flow channel is located within the third tubular member 30. Specifically, the molten glass temperature is highest within the third tubular member 30. The higher the temperature, the lower the viscosity of the molten glass, making it easier to flow. Consequently, when bubbles are present in the molten glass, the increased fluidity caused by the high temperature facilitates their escape from the top of the molten glass as it flows upward, thereby eliminating the bubbles.

[0048] Therefore, under the combined effects of high temperature and bottom-up flow, bubbles in the glass liquid are more likely to escape, leading to better clarification.

[0049] To facilitate the escape of bubbles in the molten glass in the third tubular member 30, the fourth tubular member 40 is located at a height lower than the top of the third tubular member 30. Thus, when the molten glass flows from the third tubular member 30 to the fourth tubular member 40, an escape space is formed between the top of the molten glass and the top of the third tubular member 30. The molten glass does not touch the top of the third tubular member 30, and bubbles in the molten glass can escape from the top of the molten glass into the escape space.

[0050] To facilitate heating and controlling the temperature of the molten glass, the first tubular member 10, the second tubular member 20, the third tubular member 30, the fourth tubular member 40, and the fifth tubular member 50 each include at least one tubular body made of a first high-temperature material, which is heatable by electromagnetic induction. This allows the tubular members to be heated to the desired high temperature and withstand high temperatures by installing an electromagnetic heating device, such as a solenoid, outside the tubular members.

[0051] In some embodiments, as Figure 3 As shown, the first tubular member 10 , the second tubular member 20 , the third tubular member 30 , the fourth tubular member 40 and the fifth tubular member 50 are single-tube structures, all of which are made of the first high-temperature material.

[0052] In some embodiments, as Figure 1 、 Figure 2 As shown, the first tubular member 10, the second tubular member 20, the third tubular member 30, the fourth tubular member 40 and the fifth tubular member 50 are double-layered tube structures, one of which is made of the first high-temperature material, for example, the outer tube is made of the first high-temperature material and the inner tube is made of another high-temperature material; or the inner tube is made of the first high-temperature material and the outer tube is made of another high-temperature material.

[0053] In some embodiments, some of the first tubular member 10, the second tubular member 20, the third tubular member 30, the fourth tubular member 40, and the fifth tubular member 50 are single-tube structures, and some are double-tube structures. The single-tube structures are all made of the first high-temperature material, and the double-tube structures have one of the tubes made of the first high-temperature material.

[0054] The first high-temperature material is a non-metallic, high-temperature-resistant material containing carbon, including one or more of graphite, silicon carbide, and a silicon carbide-graphite composite material. In this embodiment, the first high-temperature material is preferably relatively low-cost graphite, and the tube formed therefrom is a graphite tube. In other embodiments, more costly materials such as silicon carbide may also be used.

[0055] When the first high temperature material is graphite, and the first tubular member 10, the second tubular member 20, the third tubular member 30, the fourth tubular member 40, and the fifth tubular member 50 are single-tube structures (e.g. Figure 3 As shown), the high-temperature glass liquid will come into contact with the first high-temperature material, and graphite is easily oxidized at high temperatures. In order to avoid high-temperature oxidation of graphite, a layer of high-temperature paint can be applied on the inner wall of the graphite tube to avoid high-temperature oxidation of the graphite tube. Of course, it is also possible not to apply the high-temperature paint. The graphite tube is in contact with the high-temperature glass liquid, and the graphite particles in the graphite tube fall into the glass liquid, which is conducive to the production of microcrystalline glass. Therefore, depending on the type of glass to be produced, a high-temperature paint may or may not be provided on the inner wall of the graphite tube. The high-temperature paint can be a well-known high-temperature paint that can withstand high temperatures and can seal the surface of the graphite tube to prevent high-temperature oxidation of the graphite tube and the entry of graphite particles into the glass liquid.

[0056] Furthermore, to facilitate heating, heating devices (not shown) are provided outside at least the first tubular component 10 and the third tubular component 30, respectively. The heating devices can heat the first tubular component 10 and the third tubular component 30 to a desired temperature by electromagnetic induction.

[0057] The heating device can be a well-known heating device. In this embodiment, the heating device is a solenoid, which is spirally disposed outside the first tubular member 10 and the third tubular member 30. When in operation, the solenoid heats the first tubular member 10 and the third tubular member 30 to a desired temperature through electromagnetic induction, thereby controlling the temperature of the glass liquid therein.

[0058] Furthermore, to achieve precise temperature control, the heating device can be provided in sections, each with independent temperature control. This allows for segmented heating of the first tubular component 10 and the third tubular component 30. For example, three sections of independently controllable heating solenoids can be provided along a first direction on the exterior of the first tubular component 10, thereby enabling segmented control of the temperature of the molten glass within the first tubular component 10. For another example, two sections of independently controllable heating solenoids can be provided along a first direction on the exterior of the third tubular component 30, thereby enabling segmented control of the temperature of the molten glass within the third tubular component 30.

[0059] The heating device can be used not only to dry the kiln before startup but also to adjust process temperatures during continuous production. For example, when a tubular glass furnace is first started up, the entire furnace needs to be heated up. At this time, the heating device can be activated to heat and adjust the temperature of the target process section.

[0060] Further, if Figure 1 As shown, a pipe 70 can be provided outside the heating device to prevent high temperature from dissipating and improve heat preservation performance. The pipe 70 outside the heating device can be made of the first high temperature material, the second high temperature material, or other high temperature materials.

[0061] Because the first and third tubular members 10 and 30 are arranged along the first direction, to facilitate slag unloading, material changes, and kiln startup and shutdown, in some embodiments, discharge ports are provided at the bottoms of the first and third tubular members 10 and 30. These ports are sealed with openable plugs 80. When continuous production is required, the plugs 80 seal the discharge ports of the first and third tubular members 10 and 30. When material changes, slag unloading, or shutdown are required, the plugs 80 can be opened to discharge any remaining material within the first and third tubular members 10 and 30.

[0062] To facilitate installation, a first mounting hole 23 and a second mounting hole 24 are provided at both ends of the second tubular member 20 along a first direction for mounting the first tubular member 10 and the third tubular member 30. A third mounting hole 43 and a fourth mounting hole 44 are provided at both ends of the fourth tubular member 40 along a first direction for mounting the third tubular member 30 and the fifth tubular member 50.

[0063] The upper end of the first tubular member 10 provides a feed port 13 for feeding glass raw materials into the first tubular member 10 for melting. The lower end of the first tubular member 10 is connected to the first mounting hole 23, so that the first tubular member 10 and the second tubular member 20 are arranged vertically.

[0064] The lower end of the third tubular member 30 is connected to the second mounting hole 24 , and the upper end of the third tubular member 30 is connected to the third mounting hole 43 , so that the third tubular member 30 is vertically connected between the second tubular member 20 and the fourth tubular member 40 .

[0065] The upper end of the fifth tubular component 50 is connected to the fourth mounting hole 44 , and the lower end of the fifth tubular component 50 provides the discharge port 53 for allowing the glass liquid to flow out and enter the next processing process, such as the inflation process for inflation thinning.

[0066] Using the horizontally arranged second and fourth tubular members 20 and 40 to support the vertically arranged first, third, and fifth tubular members 10, 30, and 50 facilitates assembly and reduces structural fabrication difficulty. During fabrication, the first, third, and fifth tubular members 10, 30, and 50 can be inserted into the second and fourth tubular members 20 and 40 by simply machining the corresponding holes. Machining holes in a circular tubular structure is relatively easy, and this structure does not require extremely high machining precision. Even with lower machining precision, gaps between the tubular members and the mounting holes do not affect the flow of the molten glass. Because molten glass is a fluid, its fluidity varies with temperature, decreasing with decreasing temperature. When a gap exists between the tubular member and the mounting hole, a small amount of molten glass flows into the gap. Due to the small amount and the relatively low external temperature, the molten glass solidifies and acts as an adhesive, sealing the gap between the tubular member and the mounting hole, forming a relatively sealed structure.

[0067] Furthermore, the first mounting hole 23 , the second mounting hole 24 , the third mounting hole 43 and the fourth mounting hole 44 are stepped holes and are provided with internal threads, which are threadedly connected when plugged in.

[0068] Correspondingly, the lower end of the first tubular member 10 is at least partially threaded into the first mounting hole 23; the lower end of the third tubular member 30 is at least partially threaded into the second mounting hole 24, and the upper end of the third tubular member 30 is at least partially threaded into the third mounting hole 43; and the upper end of the fifth tubular member 50 is at least partially threaded into the fourth mounting hole 44.

[0069] Furthermore, the first tubular component 10 , the third tubular component 30 , and the fifth tubular component 50 may be integral or segmented along the first direction.

[0070] For example, in some embodiments, the third tubular member 30 is divided into two sections along the first direction. The two sections are respectively installed at different ends of the third mounting hole 43 , and the interiors of the two sections are connected through the third mounting hole 43 .

[0071] Similarly, in some embodiments, the fifth tubular member 50 is divided into two sections along the first direction. The two sections are respectively installed at different ends of the fourth mounting hole 44 , and the interiors of the two sections are connected through the fourth mounting hole 44 .

[0072] Furthermore, in this embodiment, if Figure 1 、 Figure 2 As shown, the first tubular member 10, the second tubular member 20, the third tubular member 30, the fourth tubular member 40 and the fifth tubular member 50 are preferably configured as a sleeve structure, each of which includes an outer tube and an inner tube that are sleeved with each other, and one of the outer tube and the inner tube is made of a first high-temperature material.

[0073] Specifically, the first tubular component 10 includes a first outer tube 11 and a first inner tube 12 , and the first inner tube 12 is sleeved inside the first outer tube 11 .

[0074] The second tubular component 20 includes a second outer tube 21 and a second inner tube 22 . The second inner tube 22 is sleeved in the second outer tube 21 .

[0075] The third tubular component 30 includes a third outer tube 31 and a third inner tube 32 . The third inner tube 32 is sleeved inside the third outer tube 31 .

[0076] The fourth tubular component 40 includes a fourth outer tube 41 and a fourth inner tube 42. The fourth inner tube 42 is sleeved inside the fourth outer tube 41.

[0077] The fifth tubular component 50 includes a fifth outer tube 51 and a fifth inner tube 52. The fifth inner tube 52 is sleeved inside the fifth outer tube 51.

[0078] Furthermore, the first outer tube 11, the second outer tube 21, the third outer tube 31, the fourth outer tube 41, and the fifth outer tube 51 are made of a first high-temperature material, and the first inner tube 12, the second inner tube 22, the third inner tube 32, the fourth inner tube 42, and the fifth inner tube 52 are made of a second high-temperature material, which is different from the first high-temperature material. Both the first and second high-temperature materials can withstand the high temperatures required for molten glass production and are non-metallic materials.

[0079] In this embodiment, the second high-temperature material is a corundum material (mainly composed of Al 2 O 3 ), and the tubular component made of the second high-temperature material is a corundum tube.

[0080] The sleeve structure formed by sleeve-arranging the inner tube and the outer tube can give full play to the advantages of the first high-temperature material and the second high-temperature material.

[0081] The first high-temperature material is easy to process and shape, but is easily oxidized at high temperatures; the second high-temperature material has good high-temperature resistance and can be used in an oxidizing environment. Therefore, the inner tube made of the second high-temperature material is placed in the outer tube made of the first high-temperature material. The inner tube can protect the outer tube, prevent the outer tube from being oxidized at high temperatures, and prevent the first high-temperature material from directly contacting the high-temperature glass liquid and affecting the properties of the glass liquid. Similarly, the outer tube can protect the inner tube. If the inner tube bursts, it will be entirely contained in the outer tube and will not leak out, avoiding the problem of high-temperature glass liquid leaking out and causing safety hazards. In addition, the first high-temperature material is easy to process and can be processed into mounting holes and threaded structures. Compared with the second high-temperature material, it has better processability and processing accuracy. Therefore, it is easier to realize the basic structure of the tubular glass furnace through the first high-temperature material, reducing the difficulty of processing and assembly.

[0082] The double-layer casing structure of the inner tube and the outer tube is used to make tubular components, which not only reduces the difficulty of processing and improves the processing accuracy, but also can give full play to the performance advantages of the two high-temperature materials and balance the shortcomings of a single material.

[0083] Furthermore, the first mounting holes 23 and the second mounting holes 24 are defined at both ends of the second outer tube 21, and a first axial hole 25 extending along the length of the second outer tube 21 is defined within the second outer tube 21. The second inner tube 22 is sleeved within the first axial hole 25 of the first outer tube 11, and the interior of the second inner tube 22 is connected to the first mounting hole 23 and the second mounting hole 24, respectively.

[0084] Furthermore, to facilitate insertion of the second inner tube 22 into the second outer tube 21, at least one end of the first axial hole 25 extends through the end surface of the second outer tube 21, either to the end surface near the first mounting hole 23 or to the end surface near the second mounting hole 24. During installation, the second inner tube 22 is inserted along the first axial hole 25, and the position of the second inner tube 22 is then adjusted according to the installation steps.

[0085] Furthermore, to achieve internal communication between the first tubular component 10 and the second tubular component 20 , a first through hole 121 is provided on the side wall of the first inner tube 12 . The size of the first through hole 121 is comparable to the outer wall size of the second inner tube 22 .

[0086] When installing the first tubular member 10 and the second tubular member 20, first insert the second inner tube 22 into the second outer tube 21 through the first axial hole 25, then adjust the position of the second inner tube 22 so that the end of the second inner tube 22 does not protrude from the first mounting hole 23. Then, insert the lower end of the first tubular member 10 into the first mounting hole 23, adjust the position of the first tubular member 10 so that the first through hole 121 aligns with the second inner tube 22, and then adjust the position of the second inner tube 22 so that the end of the second inner tube 22 protrudes into the interior of the first inner tube 12.

[0087] If the first axial hole 25 extends to the end surface near the first mounting hole 23, after the first tubular member 10 and the second tubular member 20 are installed, the first tubular member 10 can close one end of the first axial hole 25, so that the molten glass can only flow into the second inner tube 22 through the first inner tube 12, but will not flow out of the second tubular member 20 through the first axial hole 25.

[0088] Furthermore, the lower end of the first outer tube 11 is threadedly connected to the large-diameter hole in the first mounting hole 23, and the lower end of the first inner tube 12 is inserted into the small-diameter hole in the first mounting hole 23. The diameter of the large-diameter hole is larger than that of the small-diameter hole, forming a stepped hole.

[0089] The installation method between the third tubular member 30 and the second tubular member 20 is basically the same as that of the first tubular member 10 and the second tubular member 20: first, adjust the position of the second inner tube 22 so that the end of the second inner tube 22 does not protrude from the second installation hole 24. Then, insert the lower end of the third tubular member 30 into the second installation hole 24. The position of the third tubular member 30 is adjusted so that the second through hole 321 at the lower end of the third inner tube 32 aligns with the second inner tube 22. Then, adjust the position of the second inner tube 22 so that both ends of the second inner tube 22 protrude into, or are flush with, the interior of the first inner tube 12 and the third inner tube 32, respectively.

[0090] If the first axial hole 25 extends through to the end surface near the second mounting hole 24 , after the third tubular member 30 and the second tubular member 20 are installed, the third tubular member 30 can close one end of the first axial hole 25 , so that the molten glass can only flow into the third inner tube 32 through the second inner tube 22 and cannot flow out of the second tubular member 20 through the first axial hole 25 .

[0091] Furthermore, the lower end of the third outer tube 31 is threadedly connected to the large-diameter hole in the second mounting hole 24, and the lower end of the third inner tube 32 is inserted into the small-diameter hole in the second mounting hole 24. The diameter of the large-diameter hole is larger than that of the small-diameter hole, forming a stepped hole.

[0092] Similarly, the third mounting hole 43 and the fourth mounting hole 44 are defined at both ends of the fourth outer tube 41, and a second axial hole 45 extending along the length of the fourth outer tube 41 is defined within the fourth inner tube 42. The fourth inner tube 42 is sleeved within the second axial hole 45 of the fourth outer tube 41, and the interior of the fourth inner tube 42 is in communication with the third mounting hole 43 and the fourth mounting hole 44, respectively.

[0093] Furthermore, to facilitate insertion of the fourth inner tube 42 into the fourth outer tube 41, at least one end of the second axial hole 45 extends through the end surface of the fourth outer tube 41, either to the end surface near the third mounting hole 43 or to the end surface near the fourth mounting hole 44. During installation, the fourth inner tube 42 is inserted along the second axial hole 45, and the position of the fourth inner tube 42 is then adjusted according to the installation steps.

[0094] Furthermore, in order to achieve internal communication between the third tubular component 30 and the fourth tubular component 40 , a third through hole 322 is provided on the side wall of the third inner tube 32 . The size of the third through hole 322 is comparable to the outer wall size of the fourth inner tube 42 .

[0095] When installing the third tubular member 30 and the fourth tubular member 40, first insert the fourth inner tube 42 into the fourth outer tube 41 through the second axial hole 45. Then adjust the position of the fourth inner tube 42 so that the end of the fourth inner tube 42 does not protrude from the third mounting hole 43. Then, insert the upper end of the third tubular member 30 into the first mounting hole 23 and extend it outside the first mounting hole 23. Then, adjust the relative positions of the third tubular member 30 and the fourth tubular member 40 so that the third through hole 322 aligns with the fourth inner tube 42. Then, adjust the position of the fourth inner tube 42 so that the end of the fourth inner tube 42 protrudes into the interior of the third inner tube 32, or is flush with the inner wall of the third inner tube 32, or slightly retracts from the inner wall of the third inner tube 32.

[0096] If the second axial hole 45 extends through to the end surface near the third mounting hole 43, after the third tubular member 30 and the fourth tubular member 40 are installed, the third tubular member 30 can close one end of the second axial hole 45, so that the molten glass can only flow into the fourth inner tube 42 through the third inner tube 32, and cannot flow out of the fourth tubular member 40 through the second axial hole 45.

[0097] Furthermore, the third outer tube 31 is divided into two sections, the upper section and the lower section of which are respectively threadedly connected to the large-diameter hole in the third mounting hole 43, and the upper end of the third inner tube 32 is inserted into and passes through the small-diameter hole in the third mounting hole 43. The diameter of the large-diameter hole is larger than the diameter of the small-diameter hole, forming a stepped hole.

[0098] The installation method between the fifth tubular member 50 and the fourth tubular member 40 is basically the same as that for the third tubular member 30 and the fourth tubular member 40: first, the position of the fourth inner tube 42 is adjusted so that the end of the fourth inner tube 42 does not protrude from the fourth installation hole 44. Then, the fifth tubular member 50 is inserted into the fourth installation hole 44, and the position of the fifth tubular member 50 is adjusted so that the fourth through hole 521 on the fifth inner tube 52 aligns with the fourth inner tube 42. Then, the position of the fourth inner tube 42 is adjusted so that both ends of the fourth inner tube 42 protrude into the interiors of the third inner tube 32 and the fifth inner tube 52, respectively.

[0099] If the second axial hole 45 extends to the end surface near the fourth mounting hole 44 , after the fifth tubular member 50 and the fourth tubular member 40 are installed, the fifth tubular member 50 can close one end of the second axial hole 45 , so that the molten glass can only flow into the fifth inner tube 52 through the fourth inner tube 42 , and will not flow out of the fourth tubular member 40 through the second axial hole 45 .

[0100] Furthermore, the fifth outer tube 51 is divided into two sections, the upper and lower sections of which are respectively threadedly connected to the large-diameter hole in the fourth mounting hole 44, and the upper end of the fifth inner tube 52 is inserted into and passes through the small-diameter hole in the fourth mounting hole 44. The diameter of the large-diameter hole is larger than the diameter of the small-diameter hole, forming a stepped hole.

[0101] Through the above-mentioned plug-in structure and threaded structure, the glass furnace can be built by assembly. The assembly is easy, which can greatly shorten the construction time of the glass furnace and facilitate rapid startup.

[0102] Furthermore, the upper ends of the third tubular member 30 and the fifth tubular member 50 are closed, and their highest positions are higher than the fourth tubular member 40. The tops of the third tubular member 30 and the fifth tubular member 50 are spaced a certain distance from the highest position of the molten glass.

[0103] Furthermore, in some embodiments, a sensor component 90 , such as a temperature sensor, may be provided on the top of the third tubular member 30 and the fifth tubular member 50 to detect the temperature inside the third tubular member 30 and the fifth tubular member 50 .

[0104] Furthermore, in some embodiments, the second tubular member 20 and the fourth tubular member 40 are both disposed transversely and parallel to each other.

[0105] In some embodiments, the second tubular member 20 and the fourth tubular member 40 are both disposed transversely and perpendicular to each other.

[0106] Furthermore, in some embodiments, an overflow hole (not shown) is provided on the third tubular member 30 or the fourth tubular member 40. The overflow hole is located at a higher level than the fourth inner tube 42 and is used to control the liquid level of the molten glass, adjust the pressure, and remove defects floating on the surface of the molten glass. Furthermore, the overflow hole is provided at the junction of the third tubular member 30 and the fourth tubular member 40. When the level of the molten glass reaches the overflow hole, the molten glass flows out of the overflow hole, thereby ensuring a constant liquid level.

[0107] The tubular glass furnace of this embodiment can be positioned and installed through a simple assembly structure without the need for additional fasteners. The stability of the structure can be maintained by relying on its own structure. In addition, the double-layer sleeve structure is more conducive to improving the service life of the tubular components and can give full play to the performance advantages of the first high-temperature material and the second high-temperature material: it is convenient for processing and can avoid direct contact between the glass liquid and the graphite tube, thereby giving full play to the advantages of the graphite tube and avoiding the disadvantages of the graphite tube.

[0108] When the tubular glass furnace of the present application is used, the tubular components are first assembled so that the interiors of the first tubular component 10, the second tubular component 20, the third tubular component 30, the fourth tubular component 40 and the fifth tubular component 50 are sequentially connected to form a glass liquid circulation channel.

[0109] During production, the heating device is activated to control the temperature within the first tubular component 10 and the third tubular component 30, ensuring that the temperature within the first tubular component 10 reaches the melting temperature of the glass raw material. Once the glass raw material enters the first tubular component 10, it melts into molten glass. The molten glass flows from the first tubular component 10 into the second tubular component 20 and then into the third tubular component 30. Within the third tubular component 30, the molten glass flows upward, into the fourth tubular component 40, and then into the fifth tubular component 50. Within the fifth tubular component 50, the molten glass flows downward, then exits through the discharge port 53 and enters the next process flow, such as inflation thinning, to form a tubular glass ribbon. After the molten glass exits the discharge port 53, subsequent processes can refer to conventional techniques, such as inflation processing.

[0110] During continuous production, the temperature within the third tubular member 30 is controlled to be higher than that within the first tubular member 10 to improve the fluidity of the molten glass, allowing bubbles to escape more easily during its upward flow, resulting in clarification. Furthermore, the high temperature within the third tubular member 30 further improves melting quality, melting refractory materials, reducing particulate impurities in the molten glass, and thus enhancing clarification.

[0111] During continuous production, the fifth tubular member 50 provides a cooling zone for cooling the molten glass, adjusting its temperature to process requirements and facilitating subsequent process transitions. Excessively high molten glass temperature can lead to decreased plasticity, making it more likely to break the glass ribbon during subsequent inflation, and reducing the stability of the inflation process. Therefore, the fifth tubular member 50 provides a cooling zone, allowing for natural cooling through the flow path to control the temperature of the molten glass as it is discharged.

[0112] Although the present invention is disclosed through the above embodiments, the scope of the present invention is not limited thereto. Without departing from the concept of the present invention, the above components can be replaced with similar or equivalent elements known to those skilled in the art.

Claims

1. A tubular glass furnace device, characterized in that: The invention relates to a glass-melting glass container comprising a first tubular component (10), a second tubular component (20), a third tubular component (30), a fourth tubular component (40) and a fifth tubular component (50). The first tubular component (10), the third tubular component (30) and the fifth tubular component (50) are arranged along a first direction and spaced apart from each other. The second tubular component (20) is transversely connected between the first tubular component (10) and the third tubular component (30). The fourth tubular component (40) is transversely connected between the third tubular component (30) and the fifth tubular component (50). The interiors of the first tubular component (10), the second tubular component (20), the third tubular component (30), the fourth tubular component (40) and the fifth tubular component (50) are sequentially connected to form a glass liquid circulation channel.

2. The tubular glass furnace device according to claim 1, characterized in that: The second tubular member (20) is perpendicular to the first tubular member (10) and the third tubular member (30); The fourth tubular member (40) is perpendicular to the third tubular member (30) and the fifth tubular member (50); In the first direction, the height of the fourth tubular member (40) is higher than the height of the second tubular member (20).

3. The tubular glass furnace device according to claim 1, wherein: The inner channel of the first tubular member (10) is used to provide a melting zone to melt the glass raw material into high-temperature molten glass at a high temperature; At least part of the internal passages of the second tubular member (20), the third tubular member (30) and the fourth tubular member (40) are used to provide a clarification zone to clarify the high-temperature molten glass; The fifth tubular component (50) is used to provide a cooling zone and is provided with a discharge port (53) for allowing the glass liquid to flow out.

4. The tubular glass furnace device according to claim 1, wherein: The first tubular component (10), the second tubular component (20), the third tubular component (30), the fourth tubular component (40) and the fifth tubular component (50) each include at least one section of tubular body made of a first high-temperature material, and the first high-temperature material can be heated by electromagnetic induction.

5. The tubular glass furnace device according to claim 4, characterized in that: The first high-temperature material is a non-metallic high-temperature resistant material containing carbon elements, which includes one or more of graphite materials, silicon carbide materials, and silicon carbide-graphite composite materials.

6. The tubular glass furnace device according to claim 3, wherein: A first mounting hole (23) and a second mounting hole (24) are respectively provided at both ends of the second tubular member (20) and arranged along a first direction, and a third mounting hole (43) and a fourth mounting hole (44) are respectively provided at both ends of the fourth tubular member (40) and arranged along the first direction; The upper end of the first tubular member (10) is provided with a feed port (13) for allowing glass raw materials to enter the interior of the first tubular member (10); The lower end of the first tubular member (10) is connected to the first mounting hole (23); The lower end of the third tubular member (30) is connected to the second mounting hole (24); The upper end of the third tubular member (30) is connected to the third mounting hole (43); The upper end of the fifth tubular member (50) is connected to the fourth mounting hole (44); The lower end of the fifth tubular member (50) provides the discharge port (53).

7. The tubular glass furnace device according to claim 6, characterized in that: The first mounting hole (23) is a stepped hole, and the lower end of the first tubular component (10) is at least partially threadedly connected to the first mounting hole (23); The second mounting hole (24) is a stepped hole, and the lower end of the third tubular member (30) is at least partially threadedly connected to the second mounting hole (24); The third mounting hole (43) is a stepped hole, and the upper end of the third tubular member (30) is at least partially threadedly connected to the third mounting hole (43); The fourth mounting hole (44) is a stepped hole, and the upper end of the fifth tubular component (50) is at least partially threadedly connected to the fourth mounting hole (44).

8. The tubular glass furnace device according to any one of claims 1 to 7, characterized in that: The first tubular component (10) comprises a first outer tube (11) and a first inner tube (12), wherein the first inner tube (12) is sleeved inside the first outer tube (11); The second tubular component (20) comprises a second outer tube (21) and a second inner tube (22), wherein the second inner tube (22) is sleeved inside the second outer tube (21); The third tubular component (30) comprises a third outer tube (31) and a third inner tube (32), wherein the third inner tube (32) is sleeved inside the third outer tube (31); The fourth tubular component (40) comprises a fourth outer tube (41) and a fourth inner tube (42), wherein the fourth inner tube (42) is sleeved inside the fourth outer tube (41); The fifth tubular component (50) comprises a fifth outer tube (51) and a fifth inner tube (52), wherein the fifth inner tube (52) is sleeved inside the fifth outer tube (51); The first outer tube (11), the second outer tube (21), the third outer tube (31), the fourth outer tube (41), and the fifth outer tube (51) are made of a first high-temperature material, and the first inner tube (12), the second inner tube (22), the third inner tube (32), the fourth inner tube (42), and the fifth inner tube (52) are made of a second high-temperature material, which is different from the first high-temperature material.

9. The tubular glass furnace device according to claim 1, wherein: A heating device is provided outside the first tubular component (10) and the third tubular component (30), respectively, and the heating device can heat the first tubular component (10) and the third tubular component (30) to a desired temperature through electromagnetic induction; The highest temperature area in the glass liquid circulation channel is set in the third tubular component (30). When the glass liquid flows into the third tubular component (30), the high temperature and the bottom-up flow mode can facilitate the escape of bubbles in the glass liquid.

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