High-altitude melting furnace
By installing adjustable-depth water-filled sluices and insulation layers in high-altitude melting furnaces, combined with multi-stage heating elements, uniform temperature control of molten glass was achieved, solving the problem of low glass production qualification rate in high-altitude areas, improving production quality and reducing costs.
Patent Information
- Application Number
- CN202520463120.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-17
AI Technical Summary
When existing glass melting furnaces operate in high-altitude areas, the glass yield is low, leading to increased production costs.
Design a high-altitude melting furnace, including a melting section, a refining section, and a forming section. By setting an adjustable-depth water-cooling chute between the forming section and the refining section, the heat dissipation effect of the molten glass is adjusted. An insulation layer is added to the wall of the refining section to reduce heat loss. Combined with multi-stage heating elements and a temperature detection device, uniform temperature control of the molten glass is achieved.
It improved the pass rate and quality of glass production in high-altitude areas, reduced the backflow and turbulence of molten glass, and lowered production costs.
Smart Images
Figure CN223936403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass production technology, and in particular to a high-altitude melting furnace. Background Technology
[0002] Glass melting furnaces are indispensable equipment in glass production. Their main function is to heat glass raw materials (such as quartz sand, soda ash, limestone, etc.) to high temperatures, melting them into liquid glass. Existing glass melting furnaces are designed for production in areas below 800 meters in altitude. However, in higher altitude locations, the glass yield of these furnaces is low. Without adjustments, this would significantly increase production costs, hindering glass production in high-altitude regions. Utility Model Content
[0003] The main purpose of this invention is to propose a high-altitude melting furnace, which aims to improve the glass production qualification rate and quality in high-altitude areas.
[0004] To achieve the above objectives, this utility model proposes a high-altitude melting furnace for high-altitude glass production, the high-altitude melting furnace comprising:
[0005] A melting section, wherein the melting section is used to melt glass raw materials into molten glass;
[0006] A refining section, connected to the melting section, is provided with a refining channel for refining the molten glass. The pool wall of the refining section, from the end closest to the refining channel to the end furthest from the refining channel, is constructed of fused zirconia-corundum brick, clay brick, and asbestos-free calcium silicate board, respectively.
[0007] The forming part is connected to the clarifying part and is provided with a forming flow channel. The forming flow channel is used to convert liquid glass into plastic glass. A neck is provided between the forming part and the clarifying part. The neck is provided with a neck water bag that can be inserted into the glass to an adjustable depth.
[0008] In one embodiment, the pool wall of the clarification section further includes a heat insulation layer, which is disposed on the side of the asbestos-free calcium silicate board facing away from the clarification channel, and the thickness of the heat insulation layer is between 100mm and 150mm.
[0009] In one embodiment, the insulation layer is aluminum silicate insulation cotton.
[0010] In one embodiment, the length of the neck is between 9m and 12m.
[0011] In one embodiment, the melting section is provided with a plurality of heating elements, which are spaced apart along the length of the melting section, and the heating temperature of the plurality of heating elements gradually decreases from the end away from the clarifying section to the end closer to the clarifying section.
[0012] In one embodiment, the molding part includes a bottom wall and a side wall arranged at an angle, the bottom wall and the side wall enclosing the molding flow channel, a cooling fan is provided on the side of the bottom wall facing away from the molding flow channel, and a cooling water tank is provided on the side wall.
[0013] In one embodiment, the area of the clarifying portion is larger than the area of the forming portion.
[0014] In one embodiment, the high-altitude melting furnace further includes a drive unit, a fixed frame, a movable frame, and a moving wheel. The fixed frame is configured corresponding to the neck clamp. The moving wheel is rotatably connected to the fixed frame. The output end of the drive unit is connected to a transmission rope. The transmission rope is wound around the moving wheel and connected to the movable frame. The neck clamp water tank is connected to the movable frame.
[0015] In one embodiment, the high-altitude melting furnace further includes a first temperature detection device, which is connected to the fixed frame, and the detection end of the first temperature detection device is positioned facing the molten glass inside the neck.
[0016] In one embodiment, a second temperature detection device and a control device are provided at the bottom of the neck clamp. The second temperature detection device is used to detect the temperature at the bottom of the neck clamp. The control device is electrically connected to the drive unit, the first temperature detection device, and the second temperature detection device. The control device adjusts the insertion depth of the neck clamp water bag according to the detection values of the first temperature detection device and the second temperature detection device.
[0017] In this invention, a water-cooling device with adjustable insertion depth into the molten glass is provided between the forming section and the refining section. By changing the insertion depth of the water-cooling device into the molten glass, the heat dissipation effect of the water-cooling device on the molten glass can be adjusted, thereby ensuring that the heat dissipation rate of the molten glass meets the production requirements in high-altitude areas, and improving the glass production qualification rate and quality in high-altitude areas. Simultaneously, the water-cooling device reduces the backflow and turbulence of the molten glass, removes scum from the molten glass, and provides some protection for the rolling rolls. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1A schematic diagram of the structure of a high-altitude melting furnace provided in one embodiment of this utility model;
[0020] Figure 2 This is a schematic diagram of the neck-locking water bag setup in one embodiment of the present invention.
[0021] Explanation of icon numbers:
[0022] 100. High-altitude melting furnace; 1. Melting section; 11. Heating element; 2. Refining section; 3. Forming section; 31. Cooling fan; 32. Cooling water tank; 4. Neck; 41. Drive element; 42. Fixed frame; 43. Moving wheel; 44. Moving frame; 45. Neck water tank; 46. First temperature detection device; 47. Second temperature detection device; 48. Control device.
[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0026] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] Please combine Figure 1 and Figure 2 As shown, this utility model proposes a high-altitude melting furnace 100 for high-altitude glass production. The high-altitude melting furnace 100 includes a melting section 1, a refining section 2, and a forming section 3. The melting section 1 is used to melt glass raw materials into molten glass. The refining section 2 is connected to the melting section 1 and is provided with a refining channel for refining the molten glass. The pool wall of the refining section 2 is made of fused zirconia corundum brick, clay brick, and asbestos-free calcium silicate board, respectively, from the end near the refining channel to the end away from the refining channel. The forming section 3 is connected to the refining section 2 and is provided with a forming channel for converting the molten glass into a plastic state. A neck 4 is provided between the forming section 3 and the refining section 2. The neck 4 is provided with a water bag that can be inserted into the molten glass at an adjustable depth.
[0028] Understandably, since the air density at high altitudes is generally lower than that at low altitudes, and the temperature at high altitudes is also generally lower, the convective heat transfer coefficient of air at high altitudes is generally smaller than that of air at low altitudes. Furthermore, the specific heat capacity at constant pressure of moist air at high altitudes is generally lower than that of moist air at constant pressure at low altitudes. Therefore, air at high altitudes has a poorer heat dissipation effect on the melting furnace than air at low altitudes. In this embodiment, the neck 4 between the forming section 3 and the refining section 2 is equipped with a water-filled neck 4 with an adjustable insertion depth into the molten glass. By changing the insertion depth of the water-filled neck 4 into the molten glass, the heat dissipation effect of the water-filled neck 4 on the molten glass can be adjusted, thereby ensuring that the heat dissipation rate of the molten glass meets the production requirements at high altitudes, improving the glass production qualification rate and quality in high-altitude areas. Simultaneously, the water-filled neck 4 reduces the backflow and turbulence of the molten glass, removes scum from the molten glass, and provides some protection for the rolling rolls.
[0029] In actual implementation, the melting section 1, the refining section 2, and the forming section 3 are connected in sequence. The melting section 1 is used to melt the glass raw material into molten glass. Then, the molten glass flows into the refining channel of the refining section 2 to further remove air bubbles and unmelted solid particles in the molten glass, so as to improve the transparency and uniformity of the glass. At the same time, the temperature and flow rate of the molten glass are adjusted to make it reach a uniform temperature before flowing into the forming section 3. The bottleneck 4 set between the refining section 2 and the forming section 3 can control the flow rate of the molten glass and prevent the molten glass from flowing back from the forming section 3 to the refining section 2. Finally, the molten glass flows into the forming section 3 and cools and forms the glass.
[0030] The clarification section 2 is composed of fused zirconia-corundum bricks, clay bricks, and asbestos-free calcium silicate boards. Among them, the fused zirconia-corundum bricks have excellent high temperature resistance and corrosion resistance and can be in direct contact with molten glass. The clay bricks and asbestos-free calcium silicate boards both have good heat insulation properties, which can reduce heat loss and improve the thermal efficiency of the melting furnace.
[0031] In one embodiment of this utility model, such as Figure 1 As shown, the pool wall of the clarification section 2 also includes a heat insulation layer, which is set on the side of the asbestos-free calcium silicate board facing away from the clarification channel, and the thickness of the heat insulation layer is between 100mm and 150mm.
[0032] In this embodiment, the thickness of the insulation layer in the clarifying section 2 is set between 100mm and 150mm to maintain the temperature of the molten glass in the clarifying channel within a suitable range. The thickness can be 100mm, 110mm, 120mm, 130mm, 140mm, or 150mm, and is not specifically limited here. If the thickness of the insulation layer is too large, the heat dissipation effect of the clarifying section 2 will be poor, and the temperature of the molten glass in the clarifying channel will be too high, failing to meet the requirements of the glass production process. If the thickness of the insulation layer is too small, the molten glass in the clarifying channel will dissipate heat too quickly, resulting in a temperature that is too low, also failing to meet the requirements of the glass production process.
[0033] In one embodiment of this invention, the insulation layer is aluminum silicate insulation cotton. Aluminum silicate insulation cotton has good fire resistance, high temperature resistance, and low thermal conductivity, making it an excellent insulation material. Simultaneously, aluminum silicate also possesses good sound absorption properties, chemical stability, and electrical insulation, effectively absorbing noise, reducing noise pollution from glass production, and exhibiting high stability in use.
[0034] In one embodiment of this utility model, such as Figure 1 As shown, the length of the neck 4 ranges from 9m to 12m.
[0035] In this embodiment, the length of the neck 4 between the clarifying part 2 and the forming part 3 is between 9m and 12m. The length of the neck 4 can be 9m, 10m, 11m and 12m, and no specific limitation is made here.
[0036] Understandably, extending the neck 4 helps to prolong the cooling time of the molten glass, allowing it to cool sufficiently before forming, ensuring that the temperature of the molten glass reaches the production requirements before reaching the forming section 3. If the neck 4 is too long, it will lead to over-cooling of the molten glass, resulting in an excessively low temperature before entering the forming section 3, which does not meet the glass production process requirements. Conversely, if the neck 4 is too short, it will lead to insufficient cooling of the molten glass, resulting in an excessively high temperature before entering the forming section 3, which also does not meet the glass production process requirements.
[0037] In one embodiment, such as Figure 1 As shown, the melting section 1 is provided with a plurality of heating elements 11, which are spaced apart along the length of the melting section 1. The heating temperature of the plurality of heating elements 11 decreases gradually from the end away from the clarifying section 2 to the end closer to the clarifying section 2.
[0038] In this embodiment, the melting section 1 is heated by heating elements 11, which are arranged along the length of the melting section 1, that is, along the flow direction of the molten glass. Generally speaking, the highest temperature point of the melting section 1, also known as the hot spot temperature, should be maintained at around 1590°C to 1620°C, and is usually located in the middle of the melting section 1. In this embodiment, due to the insufficient heat dissipation capacity of the air in high-altitude areas, the heating temperature of the multiple heating elements 11 gradually decreases from the distance from the refining section 2 to the distance from the refining section 2, so as to save fuel costs while meeting the melting requirements of the furnace.
[0039] In actual implementation, the heating element 11 is arranged on both sides of the melting section 1 along its length. This reduces the fuel supply to the heating element 11 near the refining section 2, which helps control the temperature of the molten glass entering the refining section 2 within the process parameters and also saves fuel. The heating element 11 is a heating furnace.
[0040] In one embodiment of the present invention, the molding part 3 includes a bottom wall and a side wall arranged at an angle, the bottom wall and the side wall enclosing a molding flow channel, a cooling fan 31 is provided on the side of the bottom wall facing away from the molding flow channel, and a cooling water tank 32 is provided on the side wall.
[0041] In this embodiment, the forming section 3 consists of a bottom wall and side walls. To improve the heat dissipation rate of the molten glass in the forming section 3, a cooling fan 31 is provided on the side of the bottom facing away from the forming flow channel, and a cooling water tank 32 is provided on the side wall. Neither the bottom wall nor the side wall of the forming section 3 is provided with an insulation layer. The cooling fan 31 can enhance airflow and achieve the effect of accelerating heat dissipation, while the cooling water in the cooling water tank 32 can not only dissipate heat but also carry away and utilize the heat.
[0042] In actual implementation, aluminum silicate insulation cotton is not installed on the bottom and side walls of the forming section 3 to improve the cooling rate of the molten glass.
[0043] In one embodiment of this utility model, such as Figure 1 As shown, the area of the clarifying part 2 is larger than the area of the forming part 3.
[0044] In this embodiment, the area of the clarifying section 2 is larger than the area of the forming section 3, so as to ensure that the molten glass can be sufficiently cooled before flowing from the clarifying section 2 into the forming section 3, so as to meet the forming process requirements.
[0045] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the high-altitude melting furnace 100 also includes a drive unit 41, a fixed frame 42, a movable frame 44, and a moving wheel 43. The fixed frame 42 is set corresponding to the neck 4. The moving wheel 43 is rotatably connected to the fixed frame 42. The output end of the drive unit 41 is connected to a transmission rope. The transmission rope is wound around the moving wheel 43 and connected to the movable frame 44. The water tank of the neck 4 is connected to the movable frame 44.
[0046] In this embodiment, the drive unit 41 drives the moving frame 44 and the neck-lock water bag 4 to rise or fall via a drive transmission rope. The fixed frame 42 is arranged across the neck-lock 4. Optionally, the moving wheel 43 and the transmission rope include two sets, with the two sets of moving wheels 43 spaced apart and corresponding to the two ends of the moving frame 44 respectively. One end of each set of transmission rope is connected to the output end of the drive unit 41, and the other end passes around the moving wheel 43 and is connected to the moving frame 44. The neck-lock water bag 4 is suspended below the moving frame 44. The moving wheel 43 is used to change the extension direction of the transmission rope. The neck-lock water bag 4 is detachably connected to the moving frame 44 to facilitate the replacement of the neck-lock water bag 4. The drive unit 41 enables semi-automatic adjustment of the depth of the neck-lock water bag inserted into the molten glass, greatly improving the convenience of adjusting the neck-lock water bag 4.
[0047] In actual implementation, the drive component 41 is a servo motor. A transverse movement device can also be installed on the mounting bracket 42. When the water bag of the neck clamp 4 needs to be replaced, the water bag of the neck clamp 4 can be lifted and then moved out of the range of the neck clamp 4 by the transverse movement device for replacement.
[0048] In one embodiment of this utility model, such as Figure 2 As shown, the high-altitude melting furnace 100 also includes a first temperature detection device 46, which is connected to the fixed frame 42, and the detection end of the first temperature detection device 46 is set directly in front of the glass liquid inside the neck 4.
[0049] In this embodiment, the first temperature detection device 46 is used to detect the temperature of the glass melt surface of the neck 4. If the detected glass melt surface temperature is too low, the operator can adjust the insertion depth of the cooling water tank 32 and the temperature of the cooling water in a timely manner to maintain the glass melt temperature within the range required by the production process. In actual implementation, the first temperature detection device 46 is a non-contact temperature sensor.
[0050] In one embodiment of this utility model, a second temperature detection device 47 and a control device 48 are provided at the bottom of the neck 4. The second temperature detection device 47 is used to detect the temperature at the bottom of the neck 4. The control device 48 is electrically connected to the drive member 41, the first temperature detection device 46 and the second temperature detection device 47. The control device 48 adjusts the insertion depth of the water bag of the neck 4 according to the detection values of the first temperature detection device 46 and the second temperature detection device 47.
[0051] In this embodiment, the second temperature detection device 47 is used to detect the temperature of the bottom of the neck 4. At the same time, the control device 48 is electrically connected to the first temperature detection device 46, the second temperature detection device 47, and the drive unit 41. The control device 48 can simultaneously obtain the temperature of the glass melt surface and the bottom of the neck 4 through the first temperature detection device 46 and the second temperature detection device 47. The control device 48 can pre-input the preset temperature range of the glass melt surface and the bottom of the neck 4, as well as the preset temperature difference range between the glass melt surface and the bottom of the neck 4. Then, according to the detection results, the insertion depth of the water bag of the neck 4 is adjusted so that the glass melt temperature meets the production requirements.
[0052] In actual implementation, when the temperature difference between the surface of the molten glass and the bottom of the pool at the bottleneck 4 is too small or too large, the control device 48 controls the drive component 41 to raise or lower the bottleneck 4 until the temperature difference between the surface of the molten glass and the bottom of the pool is within a preset range. The second temperature detection device 47 can be a high-temperature resistant contact temperature sensor. Optionally, the second temperature detection device 47 can be installed on the outside of the bottom wall of the bottleneck 4.
[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A high-altitude melting furnace for high-altitude glass production, characterized in that, The high-altitude melting furnace includes: A melting section, wherein the melting section is used to melt glass raw materials into molten glass; A refining section, connected to the melting section, is provided with a refining channel for refining the molten glass. The pool wall of the refining section, from the end closest to the refining channel to the end furthest from the refining channel, is constructed of fused zirconia-corundum brick, clay brick, and asbestos-free calcium silicate board, respectively. The forming part is connected to the clarifying part and is provided with a forming flow channel. The forming flow channel is used to convert liquid glass into plastic glass. A neck is provided between the forming part and the clarifying part. The neck is provided with a neck water bag that can be inserted into the glass to an adjustable depth.
2. The high-altitude melting furnace as described in claim 1, characterized in that, The clarification section also includes a heat insulation layer on the side of the asbestos-free calcium silicate board facing away from the clarification channel. The thickness of the heat insulation layer is between 100mm and 150mm.
3. The high-altitude melting furnace as described in claim 2, characterized in that, The insulation layer is aluminum silicate insulation cotton.
4. The high-altitude melting furnace as described in claim 1, characterized in that, The length of the choke ranges from 9m to 12m.
5. The high-altitude melting furnace as described in claim 1, characterized in that, The melting section is provided with a plurality of heating elements, which are spaced apart along the length of the melting section, and the heating temperature of the plurality of heating elements gradually decreases from the end away from the clarifying section to the end closer to the clarifying section.
6. The high-altitude melting furnace as described in claim 1, characterized in that, The molding part includes a bottom wall and a side wall arranged at an angle, the bottom wall and the side wall enclosing the molding flow channel, a cooling fan is provided on the side of the bottom wall facing away from the molding flow channel, and a cooling water tank is provided on the side wall.
7. The high-altitude melting furnace as described in claim 1, characterized in that, The area of the clarifying section is larger than the area of the forming section.
8. The high-altitude melting furnace as described in any one of claims 1 to 7, characterized in that, The high-altitude melting furnace also includes a drive unit, a fixed frame, a movable frame, and a moving wheel. The fixed frame is configured corresponding to the neck clamp. The moving wheel is rotatably connected to the fixed frame. The output end of the drive unit is connected to a transmission rope. The transmission rope is wound around the moving wheel and connected to the movable frame. The neck clamp water tank is connected to the movable frame.
9. The high-altitude melting furnace as described in claim 8, characterized in that, The high-altitude melting furnace also includes a first temperature detection device, which is connected to the fixed frame, and the detection end of the first temperature detection device is positioned facing the molten glass inside the neck.
10. The high-altitude melting furnace as described in claim 9, characterized in that, The bottom of the neck is equipped with a second temperature detection device and a control device. The second temperature detection device is used to detect the temperature of the bottom of the neck. The control device is electrically connected to the drive unit, the first temperature detection device, and the second temperature detection device. The control device adjusts the insertion depth of the neck water bag according to the detection values of the first temperature detection device and the second temperature detection device.