A glass melting tank

Abstract

This invention relates to the field of combustion furnace technology and discloses a glass melting furnace, comprising: a combustion furnace, a top-mounted burner, and a non-carbon-based burner. The combustion furnace includes a small furnace arch, side walls, and a small furnace bottom plate, which together form a combustion chamber. The top-mounted burner is installed on the combustion furnace and can penetrate the small furnace arch to extend into the combustion furnace. The top-mounted burner is suitable for introducing carbon-based fuel. The non-carbon-based burner is also installed on the combustion furnace and is suitable for penetrating the side walls and / or the small furnace bottom plate to extend into the combustion furnace. The non-carbon-based burner is suitable for introducing non-carbon-based fuel. This invention achieves spatially stratified combustion, resulting in more uniform fuel distribution within the combustion chamber, more complete combustion, and a more balanced heat distribution. It also generates secondary thermal radiation, compensating for the weak flame radiation capability of non-carbon-based fuels and improving the heat transfer efficiency of the molten glass.

Description

Technical Field

[0001] This invention relates to the field of combustion furnace technology, and more specifically to a glass melting furnace. Background Technology

[0002] The small furnace is a key component of a glass melting furnace, its main function being to mix fuel with combustion air to provide a high-temperature heat source for glass melting. Currently, there are three main burner arrangement patterns for glass melting furnaces: bottom-fired, where the burners are arranged parallel to each other between the furnace bottom plate and the hook bricks; side-fired, where the burners are installed on the side walls of the furnace; and bottom-inserted, where the burners are raised and lowered by a drive mechanism when the furnace changes direction, extending into the furnace during combustion and retracting below the bottom plate when combustion is stopped to avoid high-temperature damage. These furnaces typically use liquid fuels such as heavy oil.

[0003] Non-carbon-based fuels such as hydrogen and ammonia have become an important direction for the glass industry to replace carbon-based fuels. However, non-carbon-based fuels have weak flame radiation capabilities, lack carbon black particles resulting in a narrow radiation spectrum, low heat transfer efficiency, and are prone to uneven heat distribution within the kiln. Summary of the Invention

[0004] In view of this, the present invention provides a glass melting furnace to solve the problems of weak flame radiation capability of non-carbon-based fuels, narrow radiation spectrum due to lack of carbon black particles, low heat transfer efficiency, and uneven heat distribution in the furnace.

[0005] In a first aspect, the present invention provides a glass melting furnace, comprising: A combustion furnace, comprising a small furnace arch, side walls, and a small furnace bottom plate, wherein the small furnace arch, side walls, and small furnace bottom plate enclose a combustion chamber; A top-mounted burner is installed on the combustion furnace and can penetrate the small furnace arch to extend into the combustion furnace. The top-mounted burner is suitable for introducing carbon-based fuel. A non-carbon-based burner, the non-carbon-based burner being mounted on the combustion furnace, the non-carbon-based burner being adapted to penetrate the sidewall and / or the small furnace bottom plate to extend into the combustion furnace, the non-carbon-based burner being adapted to supply non-carbon-based fuel.

[0006] Beneficial effects: By simultaneously installing top-mounted burners and non-carbon-based burners in a glass melting furnace, this invention achieves the mixed combustion of carbon-based and non-carbon-based fuels, effectively solving the problems of low calorific value and large fuel requirement of non-carbon-based fuels, and increasing fuel supply capacity through multiple burner arrangement methods.

[0007] Top-mounted burners extend from the top of the small furnace arch, while non-carbon-based burners extend from the side wall or bottom, creating stratified combustion in space. This results in more even fuel distribution within the combustion chamber, more complete combustion, and a more balanced heat distribution. The top-mounted burner introduces a small amount of carbon-based fuel; its combustion products can block and reflect the upward heat radiation from the non-carbon-based fuel flame, creating secondary heat radiation. This compensates for the weak flame radiation of non-carbon-based fuels and improves the heat transfer efficiency of the molten glass.

[0008] In one alternative embodiment, the non-carbon-based burner includes: A side-mounted burner is installed on the side wall of the combustion furnace and can penetrate the side wall to extend into the combustion furnace. And / or a bottom-mounted burner, the bottom-mounted burner being installed at the bottom of the combustion furnace, the bottom-mounted burner being able to penetrate the small furnace bottom plate to extend into the combustion furnace.

[0009] Beneficial Effects: By combining side-mounted and / or bottom-mounted burners with top-mounted burners, a hybrid arrangement of various burner configurations is achieved. This allows for the introduction of large quantities of non-carbon-based fuels, effectively solving the problems of low calorific value and high fuel quantity requirements of non-carbon-based fuels, thus ensuring the heat input requirements of the melting furnace. The side-mounted and bottom-mounted burners inject non-carbon-based fuels from different directions, creating spatial stratified combustion with the carbon-based fuel injected by the top-mounted burner. This results in more uniform fuel distribution, more complete combustion, and more balanced heat transfer. The combination of multiple burners fully utilizes the internal space of the melting furnace, improving combustion efficiency.

[0010] In one alternative embodiment, one to three top-mounted burners are provided.

[0011] Beneficial effects: With 1 to 3 top-mounted burners, the supply of carbon-based fuel can be flexibly adjusted according to actual needs, which not only meets the need to improve flame radiation, but also avoids excessive use of carbon-based fuel, thus helping to reduce carbon emissions.

[0012] In one alternative embodiment, the top-mounted burner includes: A combustion body, comprising: a combustion tube assembly and a cooling assembly, wherein the cooling assembly is sleeved outside the combustion tube assembly; A drive structure, adapted for installation on a combustion furnace, wherein the drive structure is connected to the cooling assembly; The cooling assembly has a cooling channel on its inner side along the axial direction of the combustion tube assembly, and the cooling medium flows through the cooling channel to cool the combustion tube assembly.

[0013] Beneficial Effects: This invention, by setting a cooling component sleeved around the combustion tube assembly and opening a cooling channel along the axial direction of the combustion tube assembly inside the cooling component, allows the cooling medium to directly cool the combustion tube assembly, effectively reducing the high temperature experienced by the combustion unit during operation, extending the service life of the combustion unit, and improving the reliability of the equipment. The drive structure is connected to the cooling component and can move the entire combustion unit, realizing the switching between the combustion unit's working and non-working positions. This ensures that the combustion unit accurately extends into the combustion zone for fuel injection when needed, and can retract during non-working periods to avoid high-temperature damage, thus improving the adaptability and safety of the combustion unit.

[0014] The bracket is fixedly installed on the top or side steel structure of the combustion furnace to support the entire drive structure and combustion body. Specifically, the top-mounted burner is installed at the top of the combustion furnace. Because the small furnace arch at the top of the combustion furnace has a certain downward inclination angle, the bracket can be used to change the installation angle of the entire top-mounted burner, such as... Figure 1 As shown, the installation angle α of the top-mounted burner needs to be adjusted according to the different inclination angles of the small furnace arch and the different fuel requirements of the glass melting furnace, so as to ensure that the flame after the fuel is ejected through the fuel injection hole is in the same direction as the combustion air flow.

[0015] In one alternative embodiment, the combustion tube assembly includes: A burner tube, wherein a first passage is provided along the axial direction; A burner nozzle is disposed at one end of the burner tube near the combustion furnace; the burner nozzle has a second passage, and the first passage and the second passage are connected to form a carbon-based fuel passage; A carbon-based fuel interface is provided at the end of the first passage away from the burner nozzle.

[0016] In one optional embodiment, the burner nozzle is further provided with a fuel injection hole, which is connected to the second passage. The axis of the fuel injection hole is arranged perpendicular to the axis of the carbon-based fuel passage.

[0017] In one alternative embodiment, the axial direction of the fuel injection hole is adapted to be the same as the flow direction of the combustion air in the combustion furnace.

[0018] Beneficial effects: By arranging the axis of the fuel injection hole perpendicular to the axis of the carbon-based fuel passage, the fuel injection direction is reversed, which facilitates directional fuel injection within the combustion furnace. This avoids direct flame impact on refractory materials such as the small furnace arch, preventing refractory material burn-out and improving equipment safety. The axial direction of the fuel injection hole is the same as the direction of combustion air flow, allowing fuel and combustion air to flow in the same direction and mix thoroughly, improving combustion performance and increasing combustion efficiency.

[0019] In one alternative implementation, the cooling assembly includes: A cooling pipe is sleeved outside the burner pipe, and a cooling channel is formed inside the cooling pipe. The cooling medium interface has two ports, both of which pass through the cooling pipe and are connected to the cooling channel.

[0020] In one optional implementation, the driving structure includes: A driving component, wherein a connecting rod is mounted on the driving end of the driving component; A movable sub-assembly is disposed at the other end of the connecting rod away from the driving member, and the movable sub-assembly is connected to the cooling pipe.

[0021] In one alternative embodiment, a support bracket is also included, which is mounted on the combustion furnace; The movable sub-component includes: A first movable joint is mounted on the bracket; The second movable pair is slidably connected to the first movable pair and fixedly connected to the cooling pipe. The driving component is connected to the second sliding pair.

[0022] In one alternative embodiment, a clamping member is further included, which is fixed to the second movable pair; The clamping element is used to clamp the cooling pipe.

[0023] Beneficial effects: In the drive structure, after the drive component is activated, its drive end drives the second moving pair to move via a connecting rod. The second moving pair slides linearly under the constraint of the first moving pair, thereby moving the clamping component fixedly connected to the second moving pair. The clamping component holds and fixes the cooling pipe, so the cooling pipe and the combustion body connected to it move together with the second moving pair, realizing the action of the combustion body extending into or out of the combustion furnace. By sleeved around the burner tube and having cooling channels inside the cooling pipe, the cooling medium can directly cool the burner tube, resulting in good cooling effect and effectively protecting the combustion body from high-temperature damage. Two cooling medium interfaces are respectively located on both sides of the cooling pipe, facilitating the introduction and export of the cooling medium, forming a circulating flow, and improving cooling efficiency and uniformity.

[0024] The driving component is connected to the second sliding joint via a connecting rod. The second sliding joint is fixedly connected to the cooling pipe via a clamping component, thereby enabling the driving component to drive the combustion body linearly and ensuring the accuracy of the combustion body's insertion and withdrawal positions. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the combustion furnace according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the top-mounted burner according to an embodiment of the present invention; Figure 3 This is a side view of a top-mounted burner according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the combustion body according to an embodiment of the present invention; Explanation of reference numerals in the attached figures: 1. Combustion furnace; 11. Small furnace arch; 12. Side wall; 13. Small furnace bottom plate; 2. Top-mounted burner; 21. Combustion body; 22. Combustion tube assembly; 23. Burner tube; 24. Burner nozzle; 241. Fuel injection port; 25. Carbon-based fuel interface; 26. Cooling assembly; 261. Cooling tube; 262. Cooling medium interface; 27. Drive structure; 271. Drive component; 272. Moving pair assembly; 273. First moving pair; 274. Second moving pair; 28. Support; 29. ​​Clamping component; 3. Non-carbon-based burners; 31. Side-mounted burners; 32. Bottom-mounted burners. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The small furnace is a key component of a glass melting furnace, its main function being to mix fuel with combustion air to provide a high-temperature heat source for glass melting. Currently, there are three main burner arrangement patterns for glass melting furnaces: bottom-fired, where the burners are arranged parallel to each other between the furnace bottom plate and the hook bricks; side-fired, where the burners are installed on the side walls of the furnace; and bottom-inserted, where the burners are raised and lowered by a drive mechanism when the furnace changes direction, extending into the furnace during combustion and retracting below the bottom plate when combustion is stopped to avoid high-temperature damage. These furnaces typically use liquid fuels such as heavy oil.

[0029] Non-carbon-based fuels such as hydrogen and ammonia have become an important direction for the glass industry to replace carbon-based fuels. However, non-carbon-based fuels have weak flame radiation capabilities, lack carbon black particles resulting in a narrow radiation spectrum, low heat transfer efficiency, and are prone to uneven heat distribution within the kiln.

[0030] To solve the above technical problems, the following will be combined with... Figures 1 to 4 The following describes embodiments of the present invention.

[0031] According to embodiments of the present invention, a glass melting furnace is provided, such as... Figures 1 to 4 As shown, the furnace includes: a combustion furnace 1, a top-mounted burner 2, and a non-carbon-based burner 3. The combustion furnace 1 includes a small furnace arch 11, side walls 12, and a small furnace bottom plate 13. The small furnace arch 11 is located at the top of the combustion furnace 1 and has a downward tilt angle. The side walls 12 are located on both sides of the small furnace, and the small furnace bottom plate 13 is located at the bottom of the small furnace. Together, these three components form a combustion chamber that provides a channel for the mixing and combustion of fuel and combustion air. The top-mounted burner 2 is installed on the combustion furnace 1 and can penetrate the small furnace arch 11 to extend into the combustion furnace 1. The top-mounted burner 2 is suitable for supplying carbon-based fuel. Multiple non-carbon-based burners 3 are installed on the combustion furnace 1; some can penetrate the side walls 12 to extend into the combustion chamber, while others penetrate the bottom plate to extend into the combustion chamber.

[0032] During operation of the glass melting furnace, the small furnace undergoes periodic reversal combustion. During combustion on this side, the top-mounted burner 2 extends through the small furnace arch 11 into the combustion chamber. Carbon-based fuel enters the burner tube through the carbon-based fuel inlet 25 and is ejected from the fuel injection port of the burner nozzle, mixing with combustion air to form a high-temperature flame. The carbon-based fuel can be natural gas, heavy oil, etc. Simultaneously, non-carbon-based fuel is introduced into the non-carbon-based burner 3. Its nozzle extends through the side wall 12 or the small furnace bottom plate 13 into the combustion chamber, ejecting non-carbon-based fuel that mixes with combustion air for combustion. The non-carbon-based fuel can be hydrogen, ammonia, etc.

[0033] The carbon-based fuel introduced into the top-mounted burner 2 is concentrated in the upper layer for combustion, while the non-carbon-based fuel introduced into the non-carbon-based burner 3 is concentrated in the middle and lower layers for combustion, forming a stratified combustion state. The soot, carbon dioxide, and water vapor produced by the combustion of carbon-based fuel can absorb and reflect the upward thermal radiation of the non-carbon-based fuel flame, forming secondary thermal radiation and enhancing the heat transfer to the molten glass.

[0034] This invention achieves mixed combustion of carbon-based and non-carbon-based fuels by simultaneously installing a top-mounted burner 2 and a non-carbon-based burner 3 in a glass melting furnace. This effectively solves the problems of low calorific value and large fuel requirement of non-carbon-based fuels, and increases fuel supply capacity through multiple burner arrangement methods.

[0035] The top-mounted burner 2 extends from the top small furnace arch 11, while the non-carbon-based burner 3 extends from the side wall 12 or the bottom, forming a spatially layered combustion that allows for more uniform fuel distribution, more complete combustion, and a more balanced heat distribution within the combustion chamber. The top-mounted burner 2 introduces a small amount of carbon-based fuel; its combustion products can block and reflect the upward heat radiation from the non-carbon-based fuel flame, creating secondary heat radiation. This compensates for the weak flame radiation capability of non-carbon-based fuels and improves the heat transfer efficiency of the molten glass.

[0036] In one embodiment, such as Figures 2 to 4 As shown, the non-carbon-based burner 3 includes a side-mounted burner 31 and a bottom-mounted burner 32. The side-mounted burner 31 is installed on the side wall of the combustion furnace 1, horizontally or obliquely mounted on the side wall 12. The side-mounted burner 31 can penetrate the side wall 12 to extend into the combustion furnace 1, for injecting non-carbon-based fuel into the combustion chamber. The bottom-mounted burner 32 is installed at the bottom of the combustion furnace 1, with its nozzle vertically or obliquely mounted below the small furnace bottom plate 13. The nozzle tip can penetrate the small furnace bottom plate 13 and extend into the combustion chamber, for injecting non-carbon-based fuel into the combustion chamber. Both the side-mounted burner 31 and the bottom-mounted burner 32 are retractable structures, and can be retracted to the outside of the side wall 12 or the small furnace bottom plate 13 when not in operation, avoiding damage from high-temperature flue gas. At least one of the side-mounted burner 31 and the bottom-mounted burner 32 is used in combination with the top-mounted burner 2 to form a hybrid arrangement.

[0037] During setup, you can install only the side-mounted burner 31, only the bottom-mounted burner 32, or both. The following example illustrates the working principle using the simultaneous installation of both side-mounted and bottom-mounted burners 31: During combustion on this side, the top-mounted burner 2 extends into the combustion chamber through the small furnace arch 11, introducing carbon-based fuel for combustion. Simultaneously, the side-mounted burner 31 extends into the combustion chamber through the side wall 12, and the bottom-mounted burner 32 extends into the combustion chamber through the small furnace bottom plate 13, introducing non-carbon-based fuel for combustion. The non-carbon-based fuel ejected from the side by the side-mounted burner 31 and the carbon-based fuel ejected from the top by the top-mounted burner 2 form a spatially stratified combustion within the combustion chamber, while the non-carbon-based fuel ejected from the bottom by the bottom-mounted burner 32 further supplements the fuel supply to the middle and lower layers. The smoke and radiation generated by the combustion of carbon-based fuel enhance the heat transfer effect of the non-carbon-based fuel flame.

[0038] When burning on the opposite side, the small furnace on this side serves as a flue gas exhaust channel. The top-mounted burner 2, the side-mounted burner 31, and the bottom-mounted burner 32 can be retracted to a safe position as needed to prevent high-temperature flue gas from damaging the combustion body 21.

[0039] By combining side-mounted burners 31 and / or bottom-mounted burners 32 with top-mounted burners 2, a hybrid arrangement of multiple burner configurations is achieved. This allows for the introduction of a large amount of non-carbon-based fuel, effectively solving the problems of low calorific value and large fuel quantity requirements of non-carbon-based fuels, thus ensuring the heat input requirements of the melting furnace. The side-mounted burners 31 and bottom-mounted burners 32 inject non-carbon-based fuel from different directions, forming a spatially stratified combustion with the carbon-based fuel injected by the top-mounted burner 2. This results in more uniform fuel distribution, more complete combustion, and more balanced heat transfer. The combination of multiple burners fully utilizes the internal space of the melting furnace, improving combustion efficiency.

[0040] In one embodiment, one to three top-mounted burners 2 are provided. Two side-mounted burners 31 are provided, one on each sidewall 12. Multiple bottom-mounted burners 32 are provided, spaced apart along the width direction of the small furnace bottom plate 13.

[0041] The top-mounted burner 2 is equipped with 1 to 3 units, which can flexibly adjust the supply of carbon-based fuel according to actual needs. This satisfies the need to improve flame radiation while avoiding excessive use of carbon-based fuel, which is conducive to reducing carbon emissions.

[0042] In one embodiment, such as Figures 2 to 4As shown, the top-mounted burner 2 includes a combustion body 21 and a drive structure 27. A combustion tube assembly 22 is used to transport fuel, with one end being a fuel inlet and the other end being a fuel outlet. A cooling assembly 26 is sleeved on the outside of the combustion tube assembly 22; a cooling channel is formed on the inner side of the cooling assembly 26 along the axial direction of the combustion tube assembly 22, and a cooling medium inlet and outlet are provided on the cooling assembly 26, which are connected to the cooling channel. The drive structure 27 is adapted to be installed on the combustion furnace 1 and is connected to the cooling assembly 26.

[0043] When the top-mounted burner 2 is in operation, the drive structure 27 moves the cooling assembly 26 and the connected combustion tube assembly 22 as a whole, causing the combustion body 21 to extend into the working position inside the combustion furnace 1. Fuel is transported to the combustion zone through the combustion tube assembly 22 and sprayed out for combustion, providing heat to the combustion furnace 1. At the same time, the cooling medium flows in from one end of the cooling channel, absorbing the high-temperature heat that the burner tube 23 experiences during operation, and then flows out from the other end of the cooling channel, thereby achieving continuous cooling of the burner tube 23 and preventing it from overheating and being damaged. When it is necessary to stop combustion or perform a reversing operation, the drive structure 27 moves in the opposite direction, causing the combustion body 21 to exit the working area, keeping it away from the high-temperature environment and avoiding damage from prolonged exposure to high-temperature flue gas.

[0044] This invention, by setting a cooling assembly 26 around the combustion tube assembly 22 and opening a cooling channel along the axial direction of the burner tube 23 inside the cooling assembly 26, allows the cooling medium to directly cool the burner tube 23, effectively reducing the high temperature experienced by the combustion body 21 during operation, extending the service life of the combustion body 21, and improving the reliability of the equipment. The drive structure 27 is connected to the cooling assembly 26 and can move the entire combustion body 21, enabling the combustion body 21 to switch between working and non-working positions. This ensures that the combustion body 21 accurately extends into the combustion zone for fuel injection when needed, and can retract during non-working periods to avoid high-temperature damage, thus improving the adaptability and safety of the combustion body 21.

[0045] In one embodiment, such as Figures 2 to 4As shown, the combustion tube assembly 22 includes a burner tube 23, a burner nozzle 24, and a carbon-based fuel inlet 25. The burner tube 23 is tubular, with a first passage along its axial direction for conveying carbon-based fuel. The burner nozzle 24 is fixedly connected to the end of the burner tube 23 near the combustion furnace 1. A second passage inside the burner nozzle 24 connects to the first passage, forming a flow channel for the carbon-based fuel. The axis of the second passage is coaxial with the axis of the first passage. A fuel injection hole 241 is located on the side of the burner nozzle 24, its axis forming a 90° angle with the axis of the carbon-based fuel passage, making the fuel injection direction perpendicular to the fuel inflow direction. The carbon-based fuel inlet 25 is also tubular, with one end fixed to the end of the burner tube 23 away from the burner nozzle 24, and the other end adapted to connect to an external carbon-based fuel delivery device. The internal passage of the carbon-based fuel inlet 25 is connected to the first passage. Specifically, the burner nozzle 24 is made of high-temperature resistant metal materials, such as Cr25Ni20 and Cr20Ni80, to adapt to the high-temperature working environment inside the combustion furnace 1. The axial direction of the fuel injection hole 241 is set to be consistent with the flow direction of the combustion air inside the combustion furnace 1 to ensure that the fuel can be fully mixed with the combustion air after it is injected.

[0046] Carbon-based fuel enters the first passage within the burner tube 23 through the internal passage of the carbon-based fuel interface 25, flows axially to the second passage at the burner nozzle 24, and is finally ejected from the fuel injection hole 241. Because the axis of the fuel injection hole 241 is arranged perpendicular to the axis of the carbon-based fuel passage, the fuel direction changes upon ejection, causing it to be injected into the combustion furnace 1 in a direction perpendicular to the axis of the burner tube 23. Simultaneously, the axial direction of the fuel injection hole 241 is set to be the same as the flow direction of the combustion air in the furnace, ensuring that the fuel flows in the same direction as the combustion air and mixes thoroughly after ejection, forming a stable flame. The burner nozzle 24 is made of a high-temperature resistant material, enabling it to operate stably for extended periods in high-temperature environments, extending the service life of the combustion body 21 and reducing the frequency of maintenance and replacement.

[0047] By arranging the axis of the fuel injection hole 241 perpendicular to the axis of the carbon-based fuel passage, the fuel injection direction is reversed, which facilitates directional fuel injection within the combustion furnace 1. This avoids direct flame impact on refractory materials such as the small furnace arch 11, preventing refractory material burn-out and improving equipment safety. The axial direction of the fuel injection hole 241 is the same as the direction of combustion air flow, allowing fuel and combustion air to flow in the same direction and mix thoroughly, improving combustion performance and increasing combustion efficiency.

[0048] In one embodiment, such as Figures 2 to 4As shown, the cooling assembly 26 includes a cooling pipe 261 and a cooling medium inlet 262. The cooling pipe 261 is a sleeve structure, fitted over the burner pipe 23, with a cooling channel formed inside the cooling pipe 261. Two cooling medium inlets 262 are provided, located at opposite ends of the cooling pipe 261; one serves as a cooling medium inlet, and the other as a cooling medium outlet, both communicating with the cooling channel. The cooling medium inlets 262 are welded to the cooling pipe 261.

[0049] The top-mounted burner 2 also includes a support 28, which is fixedly installed on the top or side steel structure of the combustion furnace 1 to support the entire drive structure 27 and the combustion body 21. Specifically, the top-mounted burner 2 is installed at the top of the combustion furnace 1. Since the small furnace arch 11 at the top of the combustion furnace 1 has a certain downward tilt angle, the support 28 can be used to change the installation angle of the entire top-mounted burner 2. The installation angle α of the top-mounted burner 2 needs to be adjusted according to the downward tilt angle of the small furnace arch 11 and the different fuel requirements of the glass melting furnace to ensure that the flame after the fuel is ejected through the fuel injection hole 241 is consistent with the flow direction of the combustion air.

[0050] The drive structure 27 includes a drive component 271, a connecting rod, and a sliding component assembly 272. The drive component 271 is fixedly mounted on the bracket 28 or the combustion furnace 1. The drive end of the drive component 271 is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the sliding component assembly 272. The drive component 271 can be a linear power mechanism such as a pneumatic, hydraulic, or electric actuator, for example, a cylinder or a hydraulic cylinder.

[0051] The sliding joint assembly 272 includes a first sliding joint 273 and a second sliding joint 274. The first sliding joint 273 is fixedly mounted on the bracket 28, and the second sliding joint 274 is slidably disposed on the first sliding joint 273. The second sliding joint 274 moves linearly under the constraint of the first sliding joint 273. For example, the first sliding joint 273 and the second sliding joint 274 can be a slide rail slider structure. The clamping member 29 is a clamp-type structure or a claw-type structure, and is fixedly connected to the second sliding joint 274. The cooling pipe 261 is clamped and fixed within the clamping member 29.

[0052] In the cooling assembly 26, when cooling is required, the cooling medium flows into the cooling channel from one cooling medium interface 262, flows along the axial direction of the burner tube 23, absorbs the heat conducted by the burner tube 23, and then flows out from another cooling medium interface 262, thereby achieving cooling protection for the burner tube 23.

[0053] In the drive structure 27, after the drive component 271 is activated, its drive end drives the second sliding joint 274 to move via the connecting rod. The second sliding joint 274 slides along a straight line under the constraint of the first sliding joint 273, thereby driving the clamping component 29, which is fixedly connected to the second sliding joint 274, to move. The clamping component 29 clamps and fixes the cooling pipe 261, so the cooling pipe 261 and the combustion body 21 connected to it move together with the second sliding joint 274, realizing the action of the combustion body 21 extending into or out of the combustion furnace 1.

[0054] The cooling pipe 261 is sleeved around the burner tube 23, and a cooling channel is opened inside the cooling pipe 261, so that the cooling medium can directly cool the burner tube 23, resulting in good cooling effect and effectively protecting the combustion body 21 from high temperature damage. Two cooling medium inlets 262 are respectively set on both sides of the cooling pipe 261, which facilitates the introduction and export of cooling medium, forming a circulation flow and improving cooling efficiency and uniformity.

[0055] The driving component 271 is connected to the second movable pair 274 via a connecting rod. The second movable pair 274 is fixedly connected to the cooling pipe 261 via a clamping component 29, thereby realizing the linear drive of the driving component 271 to the combustion body 21 and ensuring the accuracy of the position of the combustion body 21 when it extends in and out.

[0056] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A glass melting furnace, characterized in that, include: A combustion furnace (1) includes a small furnace arch (11), side walls (12) and a small furnace bottom plate (13), which together form a combustion chamber; Top-mounted burner (2), the top-mounted burner (2) is installed on the combustion furnace (1), the top-mounted burner (2) can penetrate the small furnace arch (11) to extend into the combustion furnace (1), the top-mounted burner (2) is suitable for passing carbon-based fuel; A non-carbon-based burner (3) is mounted on the combustion furnace (1), the non-carbon-based burner (3) is adapted to penetrate the side wall (12) and / or the small furnace bottom plate (13) to extend into the combustion furnace (1), and the non-carbon-based burner (3) is adapted to pass non-carbon-based fuel.

2. The glass melting furnace according to claim 1, characterized in that, The non-carbon-based burner (3) includes: A side-mounted burner (31) is installed on the side wall of the combustion furnace (1) and can penetrate the side wall (12) to extend into the combustion furnace (1); And / or a bottom-mounted burner (32), which is installed at the bottom of the combustion furnace (1) and can penetrate the small furnace bottom plate (13) to extend into the combustion furnace (1).

3. The glass melting furnace according to claim 1, characterized in that, The top-mounted burner (2) is provided in 1 to 3 units.

4. The glass melting furnace according to claim 1, characterized in that, The top-mounted burner (2) includes: The combustion body (21) includes a combustion tube assembly (22) and a cooling assembly (26), wherein the cooling assembly (26) is sleeved on the combustion tube assembly (22); A drive structure (27) is adapted to be installed on a combustion furnace (1), the drive structure (27) being connected to the cooling assembly (26); The cooling assembly (26) has a cooling channel on its inner side along the axial direction of the combustion tube assembly (22), and the cooling medium flows through the cooling channel to cool the combustion tube assembly (22).

5. The glass melting furnace according to claim 4, characterized in that, The combustion tube assembly (22) includes: The burner tube (23) has a first passage along the axial direction; The burner nozzle (24) is located at one end of the burner tube (23) near the combustion furnace (1); the burner nozzle (24) has a second passage, and the first passage and the second passage are connected to form a carbon-based fuel passage; A carbon-based fuel interface (25) is provided at the end of the first passage away from the burner nozzle (24).

6. The glass melting furnace according to claim 5, characterized in that, The burner nozzle (24) is also provided with a fuel injection hole (241), which is connected to the second passage; The axis of the fuel injection hole (241) is arranged perpendicular to the axis of the carbon-based fuel passage.

7. The glass melting furnace according to claim 6, characterized in that, The axial direction of the fuel injection hole (241) is adapted to be the same as the flow direction of the combustion air in the combustion furnace (1).

8. The glass melting furnace according to claim 5, characterized in that, The cooling assembly (26) includes: Cooling pipe (261), the cooling pipe (261) is sleeved outside the burner pipe (23), and the cooling channel is opened inside the cooling pipe (261); Cooling medium interface (262), two cooling medium interfaces (262) are provided, and both cooling medium interfaces (262) pass through the cooling pipe (261) and are connected to the cooling channel.

9. The glass melting furnace according to claim 8, characterized in that, The driving structure (27) includes: A driving component (271) is provided with a connecting rod mounted on its driving end; A movable sub-assembly (272) is disposed at the other end of the connecting rod away from the drive member (271) and is connected to the cooling pipe (261).

10. The glass melting furnace according to claim 9, characterized in that, It also includes a support (28) which is mounted on the combustion furnace (1); The moving sub-component (272) includes: A first movable joint (273) is mounted on the bracket (28); The second movable pair (274) is slidably connected to the first movable pair (273), and the second movable pair (274) is fixedly connected to the cooling pipe (261); The driving component (271) is connected to the second movable pair (274).

11. The glass melting furnace according to claim 10, characterized in that, It also includes a clamping member (29) fixed to the second movable pair (274); The clamping member (29) is used to clamp the cooling pipe (261).

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