Tubular glass kiln device

Abstract

A tubular glass kiln device comprises a melting zone and a clarifying and cooling zone, the melting zone is provided by a first tubular member, the clarifying and cooling zone is provided by a second tubular member, and the second tubular member is communicated with the first tubular member to form a glass liquid flowing passage. According to the tubular glass kiln device, a traditional brick building structure is replaced by the tubular component, so that the structure is simpler, the cost is lower, the initial investment cost is reduced, and small-batch production is carried out; compared with a traditional brick type kiln, the tonnage of glass melted in unit time is smaller, accurate glass melting is facilitated, and especially for small-tonnage continuous production of flexible glass production, the production rhythm and parameters can be accurately controlled. The tubular structure with the inner layer and the outer layer can improve heat efficiency and reduce stone generation; the device is small in size and small in occupied area, and can be combined with a subsequent forming section to form a vertical tower structure, so that the investment cost is reduced, and the space utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the field of glass production, and 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 suitable for small-batch production with significantly reduced costs can be provided, it will surely meet the actual market demand. Summary of the Invention

[0005] The present invention aims to solve the above problems and provide a low-cost tubular glass furnace device suitable for small-batch production.

[0006] In order to solve the above problems, the present invention provides a tubular glass furnace device, characterized in that it comprises:

[0007] The melting zone, provided by the first tubular member,

[0008] The clarification and cooling zone is provided by a second tubular component, which is connected to the first tubular component to form a glass liquid flow passage.

[0009] Furthermore, the first tubular member includes a first outer tube and a first inner tube that are spaced apart, and the first outer tube is directly or indirectly connected to the second tubular member; the first inner tube is fixedly arranged in the first outer tube, and the channel formed by the first inner tube provides the melting zone; an electromagnetic heating device is provided on the first outer tube, and the electromagnetic heating device can heat the first inner tube to a first temperature through electromagnetic induction, and the first temperature can melt the glass raw material.

[0010] Furthermore, a heat-insulating cavity is formed between the first outer tube and the first inner tube; at least one spacer plate transverse to the flow direction of the glass liquid is provided in the first inner tube, and a plurality of through holes are provided on the spacer plate.

[0011] Furthermore, the first tubular member and the second tubular member are fixedly connected by a connecting pipe member, and the connecting pipe member includes an outer connecting pipe member and an inner connecting pipe member arranged at intervals. The outer connecting pipe member is respectively connected to the first outer pipe member and the second tubular member, and the inner connecting pipe member is arranged in the outer connecting pipe member and is respectively connected to the first inner pipe member and the second tubular member.

[0012] Furthermore, the second tubular component includes a second outer tube and a second inner tube, the second outer tube is fixedly connected to the outer connecting tube; the second inner tube is arranged in the second outer tube, and the end of the second inner tube at least extends into the inner connecting tube and passes through the inner connecting tube.

[0013] Furthermore, the end of the second inner tube passes through the inner connecting tube and extends to the outside of the inner connecting tube and is closed. A flow hole is provided on the second inner tube, and the flow hole passes through the second inner tube and the inner connecting tube.

[0014] Furthermore, the end of the second inner pipe is open and extends into the inner connecting pipe to be connected with the inner connecting pipe.

[0015] Furthermore, the second tubular member is arranged non-parallel to the first tubular member, and one end of the second tubular member connected to the connecting tubular member is not lower than the other end of the second tubular member.

[0016] Furthermore, a third tubular member is provided at one end of the second tubular member opposite to the connecting tubular member. The third tubular member is vertically arranged and communicates with the second tubular member. The third tubular member is provided with a discharge port.

[0017] Furthermore, the third tubular component is provided with a discharge port in at least one direction, and the third tubular component includes a third outer tube and a third inner tube that are spaced apart and sleeved together. The third outer tube is fixedly connected to the second outer tube, and the third inner tube is connected to the second inner tube.

[0018] 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:

[0019] 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.

[0020] 2. The tubular kiln structure is highly flexible and suitable for small-batch production. Compared with traditional brick kilns, the present invention can melt less glass per unit time, which is conducive to accurate glass melting, especially for small-tonnage continuous production of flexible glass, and can accurately control the production rhythm and parameters.

[0021] 3. It can reduce the overall height of the glass kiln and reduce the construction difficulty of the glass kiln. It also occupies a small area and can be combined with the subsequent forming process to form a vertical tower structure, thereby reducing investment costs and increasing space utilization.

[0022] 4. Each section of the tubular glass furnace device of the present invention has a double-layer structure, which is beneficial to heat preservation, avoids heat scattering, and improves thermal efficiency.

[0023] 5. 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 method can reduce the formation of stones and improve the yield of molten glass.

[0024] 6. 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, thus increasing the upper limit of the melting temperature, better melting the insoluble objects in the raw materials, and reducing the generation of glass stones.

[0025] 7. 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 and cooling zone, which is beneficial to glass clarification and bubble reduction, thereby improving product quality.

[0026] The tubular glass furnace device of the present invention is formed by interconnected tubular components, has a novel structure, can greatly reduce costs, has strong practicality, and is suitable for widespread promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structural principle of the present invention.

[0028] Figure 2 It is another structural principle schematic diagram of the present invention.

[0029] Figure ID:

[0030] Melting zone 100, clarification and cooling zone 200;

[0031] A first tubular member 10, a first outer tube 11, a first inner tube 12, a heat-insulating cavity 13, a fixing plate 14, and a raised portion 141;

[0032] Second tubular member 20, second outer tube 21, second inner tube 22, flow hole 221;

[0033] A third tubular member 30, a third outer pipe 31, a third inner pipe 32, and a discharge port 33;

[0034] Connecting pipe member 40, outer connecting pipe 41, extension portion 411, inner connecting pipe 42, first end S1, second end S2;

[0035] Electromagnetic heating device 50. DETAILED DESCRIPTION

[0036] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0037] like Figure 1 、 Figure 2 As shown, the main point of the tubular glass furnace device of the present invention is that the traditional brick structure is replaced by tubular components, thereby reducing the scale and cost of the glass furnace, making it suitable for small and medium-sized batch production with small and medium-sized capital scale.

[0038] The tubular glass furnace device of the present invention is provided with a melting zone 100 and a clarification and cooling zone 200 .

[0039] The melting zone 100 is used to melt the glass raw materials at high temperature to ensure that the raw materials can be fully melted to form uniform, bubble-free glass liquid.

[0040] The clarification and cooling zone 200 is used to further clarify and homogenize the molten glass, while also lowering its temperature to a temperature range suitable for subsequent processing and forming. In the melting zone 100, unmelted solid particles or bubbles may still exist in the molten glass. The clarification and cooling zone 200 provides appropriate conditions to help these particles settle and bubbles float, thereby improving the transparency and uniformity of the molten glass.

[0041] In the present invention, the melting zone 100 is provided by a first tubular member 10, and the clarification and cooling zone 200 is provided by a second tubular member 20. The second tubular member 20 is connected to the first tubular member 10 to form a glass liquid flow passage.

[0042] In some embodiments, the first tubular member 10 and the second tubular member 20 are integrally formed. For example, the first tubular member 10 and the second tubular member 20 are both integrally formed from corundum tubes and are custom-made. In such embodiments, the cost can be lower than that of a conventional glass furnace. However, the cost of custom-making the first tubular member 10 and the second tubular member 20 is still relatively high.

[0043] Preferably, in this embodiment, the first tubular component 10 and the second tubular component 20 are segmented tube structures, which are fixedly connected to form a communicating vessel structure. The glass liquid is melted at a high temperature in the first tubular component 10, then flows into the second tubular component 20 for clarification and cooling, and then flows into the next process.

[0044] Since the melting zone 100 and the clarification cooling zone 200 are in a high temperature environment, the first tubular component 10 and the second tubular component 20 need to use high temperature resistant materials, which should have good high temperature resistance and chemical stability to prevent high temperature erosion and contamination of the glass liquid.

[0045] Because the second tubular member 20 provides the clarification and cooling zone 200, whose temperature is lower than that of the melting zone 100, the range of materials available for selection is wider. Because the first tubular member 10 provides the melting zone 100, which has the highest temperature in the entire glass furnace, the first tubular member 10 has the highest high-temperature resistance requirements, and conventional alloy-based high-temperature resistant materials cannot be used.

[0046] Furthermore, the first tubular member 10 includes a first outer tubular member 11 and a first inner tubular member 12. The first outer tubular member 11 is connected to the second tubular member 20. The first inner tubular member 12 is fixedly disposed in the first outer tubular member 11. The channel formed by the first inner tubular member 12 provides the melting zone 100.

[0047] Furthermore, the length of the first outer tube 11 is greater than that of the first inner tube 12 . When the first inner tube 12 is disposed in the first outer tube 11 , both ends of the first inner tube 12 are located in the first outer tube 11 .

[0048] Furthermore, the first inner tube 12 is disposed at the lower end of the first outer tube 11. That is, the bottom end of the first inner tube 12 is close to the bottom end of the first outer tube 11, and the top end of the first outer tube 11 is higher than the top end of the first inner tube 12. Raw glass flows in from the top of the first outer tube 11 and falls into the first inner tube 12 for high-temperature melting.

[0049] To ensure that the temperature of the melting zone 100 reaches the glass melting temperature, an electromagnetic heating device 50 is provided on the first outer tube 11. The electromagnetic heating device 50 heats the first inner tube 12 to a first temperature through electromagnetic induction. A known electromagnetic heating device 50 can be used. In this embodiment, the coil of the electromagnetic heating device 50 is spirally wound around the first outer tube 11, thereby heating the first inner tube 12.

[0050] The first temperature can melt the glass raw material. The specific temperature can be controlled according to process requirements. The first temperature can be a temperature range or a specific temperature value, which is set according to actual conditions. For reference, the first temperature range is 1400-1700 degrees Celsius.

[0051] When the electromagnetic heating device 50 heats the first tubular member 10, the first inner tube 12 is heated directly by the electromagnetic effect of the electromagnetic heating device 50, while the first outer tube 11 is not heated by the electromagnetic effect of the electromagnetic heating device 50. However, because the first outer tube 11 is also in the high-temperature environment of the melting zone 100, it is also heated by the heat radiation from the first inner tube 12 and the molten glass.

[0052] Because the first inner pipe 12 directly provides the melting zone 100, its high-temperature resistance is required to be the highest. The first outer pipe 11 has slightly lower high-temperature resistance than the first inner pipe 12. Therefore, the first outer pipe 11 can be made of a material with a temperature resistance lower than the first temperature, while the first inner pipe 12 can be made of a material with a temperature resistance higher than the first temperature. Of course, the first outer pipe 11 can also be made of a material with a temperature resistance higher than the first temperature, but the higher the temperature resistance requirement, the higher the material cost.

[0053] Since the first inner tube 12 needs to be heated by the electromagnetic heating device 50 and is in direct contact with the molten glass, it is required to have high chemical stability. Therefore, in this embodiment, the first inner tube 12 is preferably a graphene tube. The first outer tube 11 is also in the high temperature zone. Therefore, in this embodiment, the first outer tube 11 is preferably a corundum tube.

[0054] In this embodiment, the graphene tube serving as the first inner tube 12 is sleeved within the corundum tube of the first outer tube 11 , which can effectively protect the graphene tube and prevent the graphene tube from reacting with air at high temperatures and being oxidized.

[0055] Furthermore, to reduce the temperature of the first outer tube 11 and extend its service life, the first outer tube 11 and the first inner tube 12 are coaxially spaced apart, forming an insulating cavity 13 between the first outer tube 11 and the first inner tube 12. This prevents the first outer tube 11 from directly contacting the first inner tube 12, preventing the high temperature of the first inner tube 12 from being directly transferred to the first outer tube 11. This, in turn, reduces the temperature of the first outer tube 11 to a certain extent. Furthermore, the provision of the insulating cavity 13 also slows down the outward scattering of the temperature of the first inner tube 12, helping to reduce heat loss, thereby maintaining the high temperature of the melting zone 100 and improving thermal efficiency.

[0056] Furthermore, in order to protect the first inner tube 12 of the graphene tube, an inert gas may be introduced into the thermal insulation cavity 13 .

[0057] Furthermore, in order to fix the first inner tube 12 in the first outer tube 11, a fixing plate 14 is provided between the first inner tube 12 and the first outer tube 11. The number of the fixing plates 14 can be set as needed, and one or more fixing plates 14 can be provided.

[0058] like Figure 1 、 Figure 2 As shown, the outer diameter of the fixing plate 14 mates with the inner wall of the first outer tube 11. A positioning step 141 is provided on the fixing plate 14, which mates with the outer wall and end face of the first inner tube 12. This allows the fixing plate 14 to secure the first inner tube 12 within the first outer tube 11, ensuring that the first inner tube 12 and the first outer tube 11 are coaxially spaced. To facilitate the flow of glass material, the fixing plate 14 is provided with one or more through-holes. The shape and number of the through-holes in the fixing plate 14 can be customized. To ensure rapid entry of glass material into the melting zone 100, the through-holes on the fixing plate 14 at the highest position can be larger to facilitate passage of the glass material. The through-holes on the fixing plate 14 at the lowest position can be smaller and more numerous. This can slow the flow of the glass material to a certain extent, prolonging its time in the melting zone 100 and facilitating its full melting. In addition, it can also block unmelted glass particles to a certain extent, causing the glass particles to fall on the fixed card plate 14 without flowing downward until they are melted by high temperature and can pass through the fixed card plate 14. In this way, it can further ensure that the glass raw materials are fully melted, avoiding the presence of glass particles in the subsequent process flow.

[0059] The fixing plate 14 is not only conducive to fixing the first inner tube 12, but also facilitates the full melting of the glass raw material. The fixing plate 14 is made of a high temperature resistant material. In this embodiment, the fixing plate 14 can be made of a corundum material or a graphene material.

[0060] Furthermore, at least one separator plate transverse to the flow direction of the glass liquid can be provided in the first inner tube 12. The separator plate is provided with a plurality of through holes for the glass liquid to flow. By providing the separator plate, the flow rate of the glass liquid / glass raw material can be slowed down to a certain extent, so that the time for it to flow through the melting zone 100 is prolonged, thereby facilitating the full melting of the glass raw material. In addition, the transversely arranged separator plate can block unmelted glass particles to a certain extent, so that the glass particles fall on the separator plate without flowing downwards, until they are melted by high temperature and can pass through the separator plate. In this way, it can be further ensured that the glass raw material is fully melted, thereby avoiding the presence of glass particles in the subsequent process flow.

[0061] The separator plate is made of a high temperature resistant material. In this embodiment, the separator plate can be made of a corundum material or a graphene material.

[0062] Furthermore, to facilitate the installation of the separator, a retaining step can be formed on the inner wall of the first inner tube, and the separator overlaps the retaining step. When glass material (glass raw material or melted glass) flows from top to bottom, the glass material presses against the separator, thereby preventing the separator from shaking.

[0063] Furthermore, in this embodiment, if Figures 1 and 2 As shown, the first tubular component 10 and the second tubular component 20 are fixedly connected via a connecting tubular component 40, thereby reducing the cost of parts and the overall cost of the tubular glass furnace device.

[0064] Furthermore, the connecting pipe component 40 includes an outer connecting pipe 41 and an inner connecting pipe 42 .

[0065] The external connecting pipe 41 has at least two ends, a first end S1 of which is connected to the first external pipe 11 , and a second end S2 of which is connected to the second tubular member 20 .

[0066] The inner connecting pipe 42 has at least two ends, which are disposed inside the outer connecting pipe 41 and spaced apart from the outer connecting pipe 41. The first end S1 of the inner connecting pipe 42 is aligned with and penetrates the first inner pipe 12, and the second end S2 is connected to and penetrates the second tubular member 20.

[0067] In this way, the first tubular component 10 and the second tubular component 20 can be connected through the external connecting pipe 41 , and the interiors of the first tubular component 10 and the second tubular component 20 can be communicated through the internal connecting pipe 42 .

[0068] The interior of the inner connecting pipe 42 forms a flow channel for molten glass, allowing the molten glass to flow from the melting zone 100 to the clarification and cooling zone 200. As the molten glass flows from the melting zone 100 through the inner connecting pipe 42, its temperature is slightly lower than that of the melting zone 100, but relatively close to the temperature of the melting zone 100. For ease of description, the temperature that the molten glass must maintain within the inner connecting pipe 42 is referred to as the second temperature. This second temperature is lower than the first temperature.

[0069] Since the inner connecting pipe 42 is in direct contact with the glass liquid, the inner connecting pipe 42 is made of a material with a temperature resistance higher than the second temperature. In this embodiment, the inner connecting pipe 42 is preferably a corundum tube.

[0070] Since the outer connecting pipe 41 is spaced outside the inner connecting pipe 42 and does not contact the inner connecting pipe 42, it only contacts the high-temperature first outer pipe 11 through the end portion. Therefore, during normal operation, the temperature of the outer connecting pipe 41 is lower than that of the inner connecting pipe 42. Therefore, the high-temperature resistance requirement of the outer connecting pipe 41 is lower than that of the inner connecting pipe 42. The outer connecting pipe 41 can be made of a material that can withstand a temperature lower than the second temperature. Of course, the outer connecting pipe 41 can also be made of a material that can withstand a temperature higher than the second temperature. However, the higher the temperature resistance, the higher the material cost. In order to reduce the overall cost, the outer connecting pipe 41 is preferably made of a material that can withstand a temperature lower than the second temperature. In this embodiment, the outer connecting pipe 41 is preferably a stainless steel pipe.

[0071] Furthermore, to achieve a coaxial connection, the first end S1 of the outer connecting pipe 41 is provided with a mating step having a shape matching that of the first outer pipe 11. The end of the first outer pipe 11 is assembled on the mating step. Specifically, the outer wall of the first outer pipe 11 is in contact with the inner wall of the mating step, forming an interference fit or a tight fit, thereby achieving a connection.

[0072] Furthermore, the fixing clamping plate 14 at the lowest end of the first outer tube 11 and the first inner tube 12 is used to ensure that they are spaced apart and overlap the matching step.

[0073] Furthermore, the fixing clamp 14 at the lowest end is provided with a protrusion 141 facing the inner connecting pipe 42. The protrusion 141 is spaced a certain distance from the mating step to form an insertion cavity, and the first end S1 of the inner connecting pipe 42 is inserted into the insertion cavity, thereby achieving the positioning of the inner connecting pipe 42, so that the inner connecting pipe 42 is fixedly disposed within the outer connecting pipe 41 and spaced coaxially with the outer connecting pipe 41.

[0074] The through hole on the fixing clamping plate 14 passes through the protruding portion 141 , thereby allowing the interiors of the first inner tube 12 and the inner connecting tube 42 to be connected.

[0075] The shapes of the external connecting pipe 41 and the internal connecting pipe 42 are not limited, and they can be straight pipes or curved pipes, such as Y-shaped or T-shaped three-way pipes, or cross-shaped four-way pipes.

[0076] The second ends S2 of the outer connecting pipe 41 and the inner connecting pipe 42 are preferably offset from the axial direction of the first tubular member 10 and tilted a certain distance from the axial direction of the first tubular member 10 , so that the second tubular member 20 can be tilted or perpendicular to the first tubular member 10 .

[0077] In addition to the first and second ends S1 and S2, the external connecting pipe member 41 and the internal connecting pipe member 42 may also have a third end, a fourth end, etc. The first and second ends S1 and S2 are used for connection to achieve internal communication between the first and second tubular components 10 and 20. The other ends should be closed, or should be closed during use, but can be opened under special circumstances. This ensures that the flow direction of the molten glass is from the first tubular component 10 through the connecting pipe member 40 to the second tubular component 20. For example, the third end can be located opposite the first end S1 and equipped with a plug structure. When cleaning is required, the plug structure can be opened to allow the molten glass residue in the connecting pipe member 40 to flow out. Alternatively, a heating structure can be provided at the third end for heat preservation.

[0078] Furthermore, the second tubular member 20 is arranged non-parallel to the first tubular member 10 , and one end of the second tubular member 20 connected to the connecting tubular member 40 is not lower than the other end of the second tubular member 20 .

[0079] In some embodiments, to allow incompletely melted glass particles to settle, the second tubular member 20 is tilted relative to the first tubular member 10. The second tubular member 20 extends upward from the portion where it connects to the connecting tubular member 40. This allows the connecting tubular member 40 to be positioned low, allowing the molten glass to gradually flow upward after passing through it. This allows particles and debris in the molten glass to settle in the connecting tubular member 40 due to their own weight, and allows bubbles in the molten glass to escape.

[0080] In some embodiments, the second tubular member 20 is disposed perpendicularly relative to the first tubular member 10. The perpendicular arrangement refers to being nearly perpendicular, and any deviation within a small range of angles should be understood as perpendicular.

[0081] Furthermore, the second tubular member 20 includes a second outer tubular member 21 and a second inner tubular member 22 .

[0082] The second outer tube 21 is fixedly connected to the outer connecting tube 41. The second inner tube 22 is disposed in the second outer tube 21, and an end portion of the second inner tube 22 at least extends into and penetrates the inner connecting tube 42, so that molten glass can flow into the second inner tube 22.

[0083] The interior of the second inner tube 22 provides the clarification cooling zone 200. When the molten glass flows through it, the temperature within it is referred to as the third temperature. The range of the third temperature is adjusted based on actual needs; typically, the third temperature range is 1100-1400 degrees Celsius. The second inner tube 22 is made of a material with a temperature resistance higher than the third temperature. In this embodiment, the third inner tube 32 is made of a corundum tube.

[0084] The second outer tube 21 is positioned outside the second inner tube 22. It primarily protects the second inner tube 22 and securely connects the second tubular component 20 to the other segments. The second outer tube 21 has lower temperature resistance requirements than the second inner tube 22. Typically, high-temperature-resistant metal materials can meet these requirements. In this embodiment, the second outer tube 21 is made of high-temperature-resistant stainless steel and is welded to the second end S2 of the external connecting tube 41.

[0085] The outer layers of the second tubular member 20 and the connecting tubular member 40 are connected by metal welding, which can greatly reduce the difficulty of processing and the positioning accuracy requirement of the tubular structure, thereby helping to reduce costs.

[0086] In specific implementation, a cut of the desired shape can be processed at the position corresponding to the second end S2 of the external connecting pipe 41, and then the end of the second external pipe 21 can be welded at the cut or outside the cut to achieve a fixed connection between the external connecting pipe 41 and the second external pipe 21.

[0087] The second inner pipe 22 is used to achieve internal communication, which can be achieved in various ways.

[0088] In some embodiments, as Figure 2As shown, the end of the second inner tube member 22 is open and extends into the interior of the second inner connecting tube member 42, thereby penetrating the second inner connecting tube member 42. During processing, a cutout of the desired shape is made at the position corresponding to the second end S2 of the connecting tube member 40. The second inner tube member 22 is then inserted into the cutout, with the end of the second inner tube member 22 positioned within the interior of the inner connecting tube member 42. Although both the inner connecting tube member 42 and the second inner tube member 22 are made of corundum tube, which makes bonding difficult and easily creates a gap when the two are connected, the molten glass itself has sealing properties. When the molten glass flows, it flows into the gap at the junction of the inner connecting tube member 42 and the second inner tube member 22, thereby sealing the gap. Moreover, when the temperature of the molten glass decreases, the fluidity of the molten glass decreases, thus acting as a seal. Therefore, this structural arrangement can reduce the processing precision requirements. Even if a gap appears at the joint due to processing precision, the molten glass itself can still seal the gap, preventing leakage.

[0089] In some embodiments, as Figure 1 As shown, the end of the second inner tube member 22 passes through the inner connecting tube member 42 and extends outside the inner connecting tube member 42. In this case, the end of the second inner tube member 22 is closed, either self-sealed or sealed with a plug. Preferably, the end of the second inner tube member 22 is sealed with a plug, which allows for functional expansion as needed, such as the installation of a temperature sensor. To allow the second inner tube member 22 to communicate with the inner connecting tube member 42, a flow hole 221 is provided in the second inner tube member 22. The flow hole 221 is located in the inner connecting tube member 42 and thus passes through the inner connecting tube member 42 and the second inner tube member 22. In specific implementation, cutouts can be made at the second end S2 of the inner connecting tube member 42 and the outer connecting tube member 41, as well as at a position opposite the second end S2. The second inner tube member 22 is then inserted into the cutout of the second inner connecting tube member 42, so that the end of the second inner tube member 22 is located outside the second inner connecting tube member 42. Furthermore, in order to protect the end of the second inner pipe 22 , an extension portion 411 is provided on a side of the outer connecting pipe 41 opposite to the second end S2 , so that the outer connecting pipe 41 is Y-shaped as a whole.

[0090] The extension portion 411 is sleeved over the end of the second inner tube 22 and spaced apart from the second inner tube 22. The extension portion 411 is made of the same material as the external connecting tube 41 and is formed by welding stainless steel. When the end of the second inner tube 22 is sealed by a plug, the plug can be disposed outside the extension portion 411, extending into the extension portion 411 to seal the end of the second inner tube 22. When the end of the second inner tube 22 is sealed (i.e., integrally molded and closed), the end of the second inner tube 22 should be located inside the extension portion 411, and the end of the extension portion 411 should be closed.

[0091] By providing the flow hole 221 on the second inner tube 22 to connect the second inner tube 22 and the inner connecting tube 42, the following technical effects are achieved:

[0092] The molten glass flows from the inner connecting pipe 42 into the second inner pipe 22 through the flow hole 221. The flow rate of the molten glass is relatively low. Therefore, the influx of the high-temperature molten glass does not cause a rapid change in the temperature within the second inner pipe 22, thereby facilitating the cooling of the molten glass within the second inner pipe 22. Therefore, this structure ensures temperature isolation in the clarification cooling zone 200, facilitating cooling of the clarification process.

[0093] It should be noted that when the second inner tube 22 extends into the inner connecting tube 42 or passes through the inner connecting tube 42 and extends outside the inner connecting tube 42, the second inner tube 22 passes through at least one side of the outer connecting tube 41. When machining the outer connecting tube 41, the cut should be designed based on the shape of the second inner tube 22, so that the second inner tube 22 and the outer connecting tube 41 fit together, and the outer connecting tube 41 supports the second inner tube 22. At this time, due to machining precision, a gap may exist between the two, but this gap can also be sealed by the glass liquid, so no additional sealing is required.

[0094] Furthermore, to facilitate discharging, a third tubular member 30 is provided at the other end of the second tubular member 20 opposite to the connecting tubular member 40 .

[0095] The third tubular member 30 is vertically disposed, interpenetrating the second tubular member 20, and is provided with a discharge port 33. The location and orientation of the discharge port 33 are not limited. In some embodiments, the discharge port 33 faces downward. In some embodiments, the discharge port 33 faces upward. The number of discharge ports 33 is not limited. For example, in some embodiments, one discharge port 33 may be provided. In some embodiments, both upward and downward discharge ports 33 may be provided, with one discharge port 33 selected based on the needs.

[0096] Furthermore, the third tubular component 30 includes a third inner tubular member 32 and a third outer tubular member 31 that are spaced apart and sleeved together. The third outer tubular member 31 is fixedly connected to the second outer tubular member 21 , and the third inner tubular member 32 is connected to the second inner tubular member 22 .

[0097] After passing through the clarification and cooling zone 200, the molten glass enters the third tubular member 30 for discharge. At this point, the temperature has dropped. For ease of description, the temperature within the third tubular member 30 is referred to as the fourth temperature. Typically, the fourth temperature ranges from 900 to 1400 degrees Celsius. The fourth temperature is lower than the third temperature, which is lower than the second temperature, which is lower than the first temperature.

[0098] The third inner pipe 32 should be made of a material with a temperature resistance higher than the fourth temperature. In this embodiment, the third inner pipe 32 is made of corundum tube. The third outer pipe 31 can be made of a wide range of materials. In this embodiment, the third outer pipe 31 is made of high-temperature resistant stainless steel.

[0099] When the third outer tube member 31 and the second outer tube member 21 are both made of metal, the two are fixedly connected by welding.

[0100] The end of the second inner tube member 22 extends into the third inner tube member 32 and penetrates the third inner tube member 32. During processing, corresponding cutouts can be made on the third inner tube member 32 and the third outer tube member 31, and then the end of the second inner tube member 22 can be inserted into the cutouts of the third inner tube member 32 and the third outer tube member 31 to support the second inner tube member 22.

[0101] The coaxial spacing arrangement of the third outer tube 31 and the third inner tube 32 can be achieved by a positioning structure, which can be provided by an additional component or by the third outer tube 31. The positioning structure ensures that the third outer tube 31 and the third inner tube 32 are coaxial and relatively fixed.

[0102] In this embodiment, both upper and lower ends of the third outer tube 31 and the third inner tube 32 are open, thereby forming the discharge port 33 .

[0103] Furthermore, the end of the second tubular member 20 is connected to the upper end of the third tubular member 30 .

[0104] In the present invention, the outer layers of the connecting tubular member 40, the second tubular member 20, and the third tubular member 30 are made of a metal material, facilitating welding and securing. The inner layers are made of a high-temperature-resistant non-metallic material, supported and positioned by plugging. The joints require only form fit, eliminating the need for adhesives or other fixing methods. This reduces processing difficulty and requires low precision. Even if gaps form at the joints, they can be sealed with molten glass, achieving a seal. Each segment has a double-layer structure: the outer layer provides support, positioning, and protection for the inner layer, thus requiring low-temperature resistance, and a high-temperature-resistant alloy can be used. The inner layer provides a path for the molten glass, requiring high-temperature resistance but requiring low processing and assembly requirements. This dual-layer structure not only addresses the heat resistance requirements of the tubular materials but also addresses processing precision, assembly difficulty, and cost. The metal tubular fittings can be precisely machined to the precise positions of each notch, eliminating the need for manual adjustment of the relative positions of the components during installation. This reduces processing precision and assembly difficulty, facilitating installation.

[0105] In addition, the double-layer structure inside and outside can protect the internal pipes. If the internal pipes are accidentally broken, they are not easy to fall out directly because they are protected by metal pipes on the outer layer, thus avoiding safety accidents.

[0106] Furthermore, for the inner and outer double-layer structure, high-temperature resistant fillers can be added to the cavities of the inner and outer pipes to provide insulation and strengthen the tensile strength of the inner pipe, thereby preventing the internal corundum tube and other pipe materials from breaking. Specifically, high-temperature resistant fillers can be added to any of the following: the cavity between the first inner pipe 12 and the first outer pipe 11, the cavity between the outer connecting pipe 41 and the inner connecting pipe 42, the cavity between the second outer pipe 21 and the second inner pipe 22, and the cavity between the third inner pipe 32 and the third outer pipe 31. The high-temperature resistant filler can be a well-known high-temperature resistant filler. In specific implementation, a hole can be opened in the outer pipe, filled with the high-temperature resistant filler, and then the opening can be sealed.

[0107] In the present invention, the channel for the glass liquid to flow is provided by a tubular component. Compared with a brick-type kiln, the tubular glass kiln device structure of the present invention has the following advantages:

[0108] 1. Each section of the tubular glass furnace device of the present invention has a double-layer structure, which is beneficial to heat preservation, avoids heat scattering, and improves thermal efficiency.

[0109] 2. The present invention offers a simpler structure and lower costs, which helps reduce initial investment costs and facilitates small-batch production. Compared to traditional brick-type kilns, the present invention can melt less glass per unit time, facilitating precise glass melting, especially for small-tonnage continuous production of flexible glass, allowing for precise control of production rhythm and parameters.

[0110] 3. The present invention is small in size and occupies a small area. It can be combined with the subsequent forming process to form a vertical tower structure, thereby reducing investment costs and increasing space utilization.

[0111] 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.

[0112] 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.

[0113] 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 and cooling zone 200, which is beneficial to glass clarification and bubble reduction, thereby improving product quality.

[0114] 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: It includes: The melting zone (100) is provided by the first tubular member (10), The clarification and cooling zone (200) is provided by a second tubular component (20), and the second tubular component (20) is connected to the first tubular component (10) to form a glass liquid flow passage.

2. The tubular glass furnace device according to claim 1, characterized in that: The first tubular member (10) comprises a first outer tubular member (11) and a first inner tubular member (12) which are spaced apart from each other, the first outer tubular member (11) being directly or indirectly connected to the second tubular member (20); the first inner tubular member (12) being fixedly disposed in the first outer tubular member (11), and a channel formed by the first inner tubular member (12) providing the melting zone (100); An electromagnetic heating device (50) is provided on the first outer tube (11), and the electromagnetic heating device (50) can heat the first inner tube (12) to a first temperature by electromagnetic induction, and the first temperature can melt glass raw materials.

3. The tubular glass furnace device according to claim 2, wherein: A heat-insulating cavity (13) is formed between the first outer tube (11) and the first inner tube (12); at least one spacer plate transverse to the flow direction of the glass liquid is provided in the first inner tube (12), and a plurality of through holes are provided on the spacer plate.

4. The tubular glass furnace device according to claim 2 or 3, characterized in that: The first tubular member (10) and the second tubular member (20) are fixedly connected via a connecting pipe member (40), wherein the connecting pipe member (40) comprises an outer connecting pipe member (41) and an inner connecting pipe member (42) arranged at intervals. The external connecting pipe (41) is connected to the first external pipe (11) and the second tubular member (20) respectively. The inner connecting pipe (42) is arranged in the outer connecting pipe (41) and is respectively connected to the first inner pipe (12) and the second tubular component (20).

5. The tubular glass furnace device according to claim 4, characterized in that: The second tubular member (20) comprises a second outer tubular member (21) and a second inner tubular member (22). The second outer pipe (21) is fixedly connected to the outer connecting pipe (41); The second inner tube (22) is arranged in the second outer tube (21), and the end of the second inner tube (22) at least extends into the inner connecting tube (42) and is communicated with the inner connecting tube (42).

6. The tubular glass furnace device according to claim 5, characterized in that: The end of the second inner tube (22) passes through the inner connecting tube (42) and extends to the outside of the inner connecting tube (42) and is closed. A circulation hole (221) is provided on the second inner tube (22), and the circulation hole (221) passes through the second inner tube (22) and the inner connecting tube (42).

7. The tubular glass furnace device according to claim 5, characterized in that: The end of the second inner pipe (22) is open and extends into the inner connecting pipe (42) and is communicated with the inner connecting pipe (42).

8. The tubular glass furnace device according to claim 5, wherein: The second tubular member (20) is arranged non-parallel to the first tubular member (10), and one end of the second tubular member (20) connected to the connecting tubular member (40) is not lower than the other end of the second tubular member (20).

9. The tubular glass furnace device according to claim 5, characterized in that: A third tubular member (30) is provided at one end of the second tubular member (20) opposite to the connecting tubular member (40). The third tubular member (30) is vertically arranged and communicates with the second tubular member (20). The third tubular member (30) is provided with a discharge port (33).

10. The tubular glass furnace device according to claim 9, wherein: The third tubular member (30) is provided with a discharge port (33) in at least one direction. The third tubular component (30) comprises a third outer tube (31) and a third inner tube (32) which are spaced apart and sleeved together. The third outer tube (31) is fixedly connected to the second outer tube (21), and the third inner tube (32) is connected to the second inner tube (22).

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