A glass electric melting furnace

Abstract

This invention provides a glass electric melting furnace, aiming to solve the technical problems of fixed insulation structures being unable to be adjusted, resulting in difficult heat dissipation during maintenance and affecting thermal efficiency. The electric melting furnace includes: a melting pool located inside the furnace, the inner wall of which is a supporting structure; an insulation structure disposed on the outer wall of the supporting structure, the insulation structure including multiple insulation cover plates movably disposed on the outer wall of the supporting structure; and a driving structure disposed inside the furnace, the driving part of which is connected to the insulation cover plates and used to drive the insulation cover plates to contact or separate from the outer wall of the supporting structure. This electric melting furnace has the advantages of flexible switching between insulation and heat dissipation, improved thermal efficiency, and shortened maintenance cycles.

Description

Technical Field

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

[0002] An electric glass melting furnace is a thermal device that utilizes the electrical conductivity of molten glass at high temperatures to generate Joule heat through electrodes inserted into the molten glass. Compared to traditional flame furnaces, electric melting furnaces have advantages such as high thermal efficiency, low pollutant emissions, and good melting quality, and are widely used in the fields of specialty glass, optical glass, and borosilicate glass.

[0003] The melting pool is the core area of ​​an electric melting furnace, with internal temperatures exceeding 1600℃. To reduce heat loss and improve thermal efficiency, an insulation layer is typically installed on the outer wall of the melting pool. Existing insulation layers are mostly fixed structures, using materials such as refractory fiber blankets, insulating bricks, or castables, which are then fixedly laid on the outer wall of the melting pool.

[0004] However, this type of fixed insulation structure has the following technical problems:

[0005] First, it cannot be adjusted according to the kiln's operating status. In actual production, the temperature requirements of different areas of the kiln vary, and the thermal regime inside the kiln needs to be fine-tuned as the operating time increases. The fixed insulation structure cannot flexibly adjust the insulation effect of local areas, resulting in excessive heat loss or over-insulation in some areas, affecting thermal efficiency.

[0006] Secondly, cooling during maintenance is difficult. When the furnace needs to be shut down for maintenance or to handle abnormal situations, the fixed insulation layer hinders the rapid heat dissipation of the kiln. Due to the insulation layer, the natural cooling time of the melting pool can be as long as several weeks or even months, which seriously prolongs the maintenance cycle and increases the heat waste and energy consumption caused by prolonged insulation.

[0007] Therefore, how to provide a glass electric melting furnace that can adjust the heat preservation effect according to the operating status and take into account both normal production heat preservation and rapid heat dissipation during maintenance has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] To address the technical problems of fixed insulation structures being unable to be adjusted, making heat dissipation difficult during maintenance and affecting thermal efficiency, this invention provides a glass electric melting furnace with the advantages of flexible switching between insulation and heat dissipation, improved thermal efficiency, and shortened maintenance cycle.

[0009] The technical solution of this invention is:

[0010] A glass electrofusion furnace, comprising:

[0011] A melting pool is located inside the electric melting furnace, and the inner wall of the melting pool is a supporting structure;

[0012] A thermal insulation structure is provided on the outer wall of the supporting structure. The thermal insulation structure includes multiple thermal insulation cover plates, which are movably provided on the outer wall of the supporting structure.

[0013] A driving structure is provided inside the electric melting furnace. The driving part of the driving structure is connected to the heat insulation cover plate and is used to drive the heat insulation cover plate to contact or separate from the outer wall of the support structure.

[0014] Optionally, the electric melting furnace further includes a plurality of electrode rods, which are inserted into the melting pool from the outside of the melting pool;

[0015] The thermal insulation structure includes multiple fixed cover plates, all located outside the supporting structure, with one thermal insulation cover plate between two adjacent fixed cover plates;

[0016] The electrode rod passes through the fixed cover plate.

[0017] Optionally, the driving structure includes:

[0018] At least two sets of hydraulic actuators, the drive ends of which are poweredly connected to all the insulation covers on one side of the melting pool.

[0019] Optionally, the driving structure further includes:

[0020] A connecting plate is connected to all the heat-insulating cover plates on one side of the melting pool, and the connecting plate is located on the drive end of the hydraulic actuator.

[0021] Optionally, the driving structure further includes:

[0022] A drive rod, one end of which is disposed on the connecting plate, and the other end of which is connected to the heat insulation cover plate.

[0023] Optionally, the end of the drive rod is rotatably connected to the end of the insulation cover plate, and the drive structure further includes a guide assembly for guiding the insulation cover plate to move and rotate along a predetermined track.

[0024] Optionally, the guiding component includes:

[0025] A pressure bar is installed inside the electric melting furnace and located in the upper half of the heat insulation cover plate. The pressure bar is located inside the melting pool, and the two ends of the pressure bar have an included angle greater than 90°.

[0026] A limiting rod is installed inside the electric melting furnace and located in the lower half of the heat preservation cover plate. One end of the limiting rod is arc-shaped, and the other end is a straight structure.

[0027] In this configuration, one end of the pressure rod and a straight section of the limiting rod are both horizontally positioned inside the electric melting furnace, the other end of the pressure rod is inclined toward the limiting rod, and the other section of the limiting rod is bent toward the pressure rod.

[0028] Optionally, the electric melting furnace also includes:

[0029] An active heat dissipation structure is installed inside the electric melting furnace and close to the front or rear wall of the melting pool.

[0030] Optionally, the heat-insulating cover is made of nanoporous heat insulation board; both ends of the melting pool are provided with driving structures.

[0031] Optionally, all the electrode rods are arranged in a matrix in the middle of the melting pool;

[0032] The upper half of the rear wall of the melting pool is provided with a feeding port, and the bottom of the front wall is provided with a liquid flow hole;

[0033] The insulation structure is equipped with fixed cover plates on both the front and rear walls.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] By incorporating a movable insulation cover, the insulation layer can be adjusted as needed. Under normal production conditions, the drive structure ensures the insulation cover is in close contact with the outer wall of the supporting structure, forming a complete insulation layer. This effectively reduces heat dissipation from the melting pool, maximizing heat retention within the pool and thus improving thermal efficiency. When furnace shutdown for maintenance or handling abnormal situations is required, the drive structure separates the insulation cover from the outer wall of the supporting structure, exposing it directly to ambient air. This accelerates heat dissipation from the melting pool, shortens cooling time, reduces maintenance cycles, and minimizes heat waste caused by prolonged insulation. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0038] Figure 2 This is a schematic diagram of the driving structure;

[0039] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0040] Figure 4 A schematic diagram showing the state of the insulation cover being opened by the drive structure.

[0041] Figure 5 for Figure 4 Enlarged diagram of point B in the middle.

[0042] Figure label:

[0043] 10. Melting pool.

[0044] 20. Thermal insulation structure; 21. Thermal insulation cover plate; 22. Fixed cover plate.

[0045] 30. Drive structure; 31. Hydraulic actuator; 32. Connecting plate; 33. Drive rod; 34. Pressure rod; 35. Limiting rod; 36. First guide shaft; 37. Second guide shaft; 38. Connecting shaft.

[0046] 40. Electrode rod.

[0047] 50. Active heat dissipation structure. Detailed Implementation

[0048] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0049] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0050] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0051] See Figure 1 , Figure 2 and Figure 4This embodiment discloses a glass electric melting furnace, including a melting pool 10, a heat insulation structure 20, and a drive structure 30. The melting pool 10, located inside the electric melting furnace, is the core area of ​​the glass melting reaction. Its inner wall is constructed of high-temperature resistant and corrosion-resistant fused zirconia-corundum bricks, forming a support structure to support the high-temperature molten glass (above 1600°C) and provide stable structural strength. The heat insulation structure 20 is located on the outer wall of the support structure to reduce heat loss from the furnace body and improve thermal efficiency.

[0052] Specifically, the insulation structure 20 includes multiple insulation cover plates 21, which are movably disposed on the outer wall of the supporting structure and can move relative to the supporting structure under the action of the driving structure 30. The driving structure 30 is disposed inside the electric melting furnace, and the driving part of the driving structure 30 is poweredly connected to the insulation cover plate 21 and is used to drive the insulation cover plate 21 to contact or separate from the outer wall of the supporting structure.

[0053] In this embodiment, a movable insulation cover 21 is provided to allow for on-demand adjustment of the insulation layer. Under normal production conditions, the drive structure 30 drives the insulation cover 21 into close contact with the outer wall of the support structure, forming a complete insulation layer. This effectively reduces heat dissipation from the melting pool 10, maximizing heat retention within the melting pool 10 and thus improving thermal efficiency. When a furnace shutdown for maintenance or handling of abnormal situations is required, the drive structure 30 drives the insulation cover 21 to separate from the outer wall of the support structure, exposing the outer wall of the support structure directly to the ambient air. This accelerates heat dissipation from the melting pool 10, shortens cooling time, and consequently shortens maintenance cycles, reducing heat waste caused by prolonged insulation.

[0054] In one specific embodiment:

[0055] The electric melting furnace also includes several electrode rods 40, which are inserted into the melting pool 10 from the outside of the melting pool 10 to input electrical energy into the molten glass and convert the electrical energy into heat energy. The insulation structure 20 also includes multiple fixed cover plates 22, all of which are located on the outside of the supporting structure, with an insulation cover plate 21 between two adjacent fixed cover plates 22. The electrode rods 40 pass through the fixed cover plates 22, and the fixed cover plates 22 seal and protect the base of the electrode rods 40.

[0056] In addition, a fixed cover plate 22 is also provided on the front wall and the rear wall of the melting pool 10. The size and structure of all fixed cover plates 22 are processed separately according to their installation positions.

[0057] In this embodiment, the combination of the fixed cover plate 22 and the heat-insulating cover plate 21 ensures both the sealing and heat insulation of the area through which the electrode rod 40 passes, while also preserving the adjustability of the heat insulation layer. Specifically, the electrode rod 40 passes through the fixed cover plate 22, which provides stable sealing and heat insulation, preventing the sealing effect at the base of the electrode rod 40 from being affected by the movement of the heat-insulating cover plate 21. A movable heat-insulating cover plate 21 is provided between adjacent fixed cover plates 22, allowing the adjustable area of ​​the heat insulation layer to cover the entire outer wall of the melting pool 10, maximizing the flexibility of adjustment.

[0058] The partitioned structure in this embodiment allows operators to independently adjust the opening and closing state of the insulation cover 21 of each area according to the temperature requirements of different areas within the melting pool 10, thereby achieving precise control of the thermal regime and further improving thermal efficiency.

[0059] In another specific embodiment:

[0060] See Figure 3 and Figure 5 The drive structure 30 includes at least two sets of hydraulic actuators 31, the drive ends of which are poweredly connected to all the insulation cover plates 21 on one side of the melting pool 10. At least one set of hydraulic actuators 31 is provided on each side of the melting pool 10, and is used to drive the insulation cover plates 21 on both sides of the melting pool 10 respectively.

[0061] In this embodiment, a hydraulic actuator 31 is used as the power source, which has the advantages of large thrust, smooth movement, and high control precision. At least one set of hydraulic actuators 31 is provided on each side of the melting pool 10, so as to realize the control of the heat preservation cover plates 21 on both sides of the melting pool 10 respectively.

[0062] In addition, the hydraulic actuator 31 is powered by all the insulation covers 21 on one side of the melting pool 10, enabling synchronous driving of all insulation covers 21 on the same side, simplifying the control system and reducing equipment costs. When rapid heat dissipation is required, the hydraulic actuator 31 can simultaneously open all insulation covers 21 to achieve maximum heat dissipation area; during normal production, it can simultaneously close all insulation covers 21 to achieve optimal heat preservation effect.

[0063] Preferably, all the insulation covers 21 on both sides of the melting pool 10 are connected to a hydraulic actuator 31, so that during operation, some insulation covers 21 can be selectively opened for local heat dissipation according to the temperature distribution in different areas, thereby achieving fine-tuning of the thermal regime inside the kiln and further optimizing thermal efficiency.

[0064] In another specific embodiment:

[0065] The drive structure 30 also includes a connecting plate 32, which is connected to all the insulation cover plates 21 on one side of the melting pool 10. The connecting plate 32 is located on the drive end of the hydraulic drive 31. As an intermediate transmission component, the connecting plate 32 transmits the driving force of the hydraulic drive 31 to all the insulation cover plates 21.

[0066] In this embodiment, the connecting plate 32 centralizes the multi-point drive, evenly transmitting the driving force of the hydraulic actuator 31 to all insulation cover plates 21, thus avoiding movement jamming or deformation caused by uneven force on each insulation cover plate 21. The connecting plate 32 can also serve as a positioning reference, ensuring that the movement trajectory of all insulation cover plates 21 is consistent, and ensuring the sealing performance when the insulation cover plates 21 are in contact with the outer wall of the supporting structure.

[0067] In another specific embodiment:

[0068] The drive structure 30 also includes a drive rod 33, one end of which is mounted on the connecting plate 32 and perpendicularly connected to the connecting plate 32. The other end of the drive rod 33 is connected to the insulation cover plate 21. The drive rod 33 serves as a transmission element between the connecting plate 32 and each insulation cover plate 21, transmitting the movement of the connecting plate 32 to each insulation cover plate 21.

[0069] In this embodiment, a drive rod 33 is provided to achieve a flexible connection between the connecting plate 32 and each insulation cover plate 21, which can absorb installation errors and thermal expansion deformation, ensuring the stable operation of the transmission system. This improves the system's fault tolerance and reliability, ensures the long-term stable operation of the insulation layer adjustment function, and guarantees continuous optimization of thermal efficiency.

[0070] In another specific embodiment:

[0071] The end of the drive rod 33 is rotatably connected to the end of the insulation cover plate 21. The drive structure 30 also includes a guide assembly, which guides the insulation cover plate 21 to move and rotate along a predetermined track. Through the cooperation of the rotatable connection and the guide assembly, the combined movement of the insulation cover plate 21 is achieved.

[0072] In this embodiment, the end of the drive rod 33 is rotatably connected to the insulation cover 21. Combined with the guiding function of the guide assembly, this allows the insulation cover 21 to both translate and rotate during movement, achieving precise contact and separation with the outer wall of the supporting structure. When the insulation cover 21 is closed, it rotates to ensure parallel contact with the outer wall of the supporting structure, guaranteeing a tight seal. When the insulation cover 21 is open, it rotates to form a certain angle with the outer wall of the supporting structure, increasing the heat dissipation area and accelerating heat dissipation. This composite movement method ensures both insulation performance and heat dissipation efficiency, achieving an optimized balance between insulation and heat dissipation, thereby improving overall thermal efficiency.

[0073] In another specific embodiment:

[0074] The guiding assembly includes a pressure rod 34 and a limiting rod 35. Both the pressure rod 34 and the limiting rod 35 are located inside the electric melting furnace, specifically in the upper half of the insulation cover plate 21. The two ends of the pressure rod 34 have an included angle greater than 90°. The limiting rod 35 is located in the lower half of the insulation cover plate 21, with one end curved and the other straight. One end of the pressure rod 34 and the straight section of the limiting rod 35 are horizontally positioned inside the electric melting furnace. The other end of the pressure rod 34 is inclined downwards towards the limiting rod 35, while the other section of the limiting rod 35 is bent upwards towards the pressure rod 34.

[0075] In addition, a connecting shaft 38 that is rotatably connected to the end of the drive rod 33 is provided in the middle of one end of the heat insulation cover plate 21, a first guide shaft 36 that contacts the pressure rod 34 is provided at the top of this end of the heat insulation cover plate 21, and a second guide shaft 37 that contacts the limiting rod 35 is provided at the bottom of this end of the heat insulation cover plate 21.

[0076] In this embodiment, by setting the pressure rod 34 and the limiting rod 35, precise control of the movement trajectory of the insulation cover plate 21 is achieved. Precise movement control ensures the sealing and consistency of the opening and closing of the insulation layer, thereby optimizing thermal efficiency. Specifically, when the hydraulic actuator 31 drives the connecting plate 32 and the drive rod 33, the insulation cover plate 21 moves away from the melting pool 10. In the initial stage, since the pressure rod 34 and the limiting rod 35 are parallel sections that are in contact with the first guide shaft 36 and the second guide shaft 37, the insulation cover plate 21 is parallel in the horizontal direction at this stage, thereby disengaging from the gap between the two fixed cover plates 22. Then, in the later stage of the movement, the first guide shaft 36 is pressed by the inclined end of the pressure rod 34. Due to the support of the connecting shaft 38 and the drive rod 33, the top of the heat insulation cover 21 is forced to rotate downward. Thus, the heat insulation cover 21 rotates in this stage, thereby reducing the projected area of ​​the heat insulation cover 21 on the outer wall of the melting pool 10, and thus reducing the heat insulation cover 21's ability to hinder heat loss from the melting pool 10.

[0077] When the hydraulic actuator 31 drives the insulation cover plate 21 closer to the melting pool 10, the second guide shaft 37, under the action of a section of the limit rod 35 which is a bent structure, drives the entire insulation cover plate 21 to rotate, so that the insulation cover plate 21 deflects before entering the gap between the two fixed cover plates 22, causing the insulation cover plate 21 to rotate to a state parallel to the outer wall of the melting pool 10. Then, the first guide shaft 36 and the second guide shaft 37, under the action of the pressure rod 34 and the limit rod 35 which are parallel to each other, enter the gap between the two fixed cover plates 22.

[0078] In another specific embodiment:

[0079] The electric melting furnace also includes an active heat dissipation structure 50, which is located inside the furnace and close to the front or rear wall of the melting pool 10. The active heat dissipation structure 50 is used to forcibly accelerate heat dissipation when needed, further improving cooling efficiency.

[0080] In this embodiment, the heat dissipation effect is further enhanced by setting an active heat dissipation structure 50, even when the insulation cover 21 is open. Positioned near the front or rear wall, it specifically strengthens heat dissipation at both ends of the melting pool 10, as these ends typically have larger temperature gradients and more urgent heat dissipation needs. The active heat dissipation structure 50 can be activated after the insulation cover 21 is opened, forcibly removing heat from the outer wall of the supporting structure and significantly shortening the cooling time. During normal production, the active heat dissipation structure 50 is closed, without affecting the insulation effect.

[0081] The combination of passive heat dissipation (natural convection) and active heat dissipation (forced cooling) ensures the insulation effect during normal production and enables rapid cooling when needed, thus optimizing the thermal efficiency throughout the entire life cycle.

[0082] Preferably, the active heat dissipation structure 50 includes an air duct, which is located on the side of the insulation cover plate 21 and has a gap between it and the insulation cover plate 21. The side of the air duct near the insulation cover plate 21 is provided with multiple air outlets, and each insulation cover plate 21 corresponds to one air outlet.

[0083] In this embodiment, the design of a gap between the air duct and the insulation cover 21 avoids direct contact between them, reduces heat conduction, and ensures the insulation effect. The multiple air outlets ensure that cooling air evenly covers each insulation cover 21 area, preventing localized overheating. The design of one air outlet per insulation cover 21 achieves precise control of heat dissipation. Furthermore, the airflow of each air outlet can be independently adjusted according to the opening / closing state and temperature of each insulation cover 21. When an insulation cover 21 in a certain area is open and requires heat dissipation, the corresponding air outlet can increase its airflow; when the insulation cover 21 is closed, the corresponding air outlet can decrease or close its airflow, thereby optimizing overall thermal efficiency.

[0084] It is also worth noting that by placing the air outlet of the air duct near the end of the insulation cover plate 21, not only can the cooling air directly contact the exposed outer wall of the melting pool 10, but also some of the cooling air can contact the end (front wall or rear wall) of the melting pool 10, thereby dissipating heat from the melting pool 10 in multiple dimensions.

[0085] In another specific embodiment:

[0086] The insulation cover plate 21 is made of nanoporous insulation board. Nanoporous insulation board has extremely low thermal conductivity, and its insulation performance is superior to traditional insulation materials at the same thickness, significantly improving the insulation performance of the insulation layer. Furthermore, it allows for a reduction in insulation layer thickness and structural weight while maintaining the same insulation effect; it also achieves better insulation performance at the same thickness, further reducing heat loss.

[0087] Both ends of the melting pool 10 are equipped with drive structures 30 to achieve synchronous control of both ends of the insulation cover plate 21, so as to achieve the purpose of smooth movement of the insulation cover plate 21.

[0088] In another specific embodiment:

[0089] All electrode rods 40 are arranged in a matrix in the middle of the melting pool 10, forming a uniform heating field. The upper half of the rear wall of the melting pool 10 has a feeding port for feeding glass batch materials; the bottom of the front wall has a flow hole for guiding the molten glass to the next process. The insulation structure 20 has fixed cover plates 22 on both the front and rear walls for insulation at both ends.

[0090] In this embodiment, by distributing the electrode rods 40 in a matrix pattern in the middle of the melting pool 10, the uniformity of the temperature field inside the kiln is ensured, avoiding local overheating or undercooling, and improving melting quality and thermal efficiency. The feeding port is located on the upper half of the rear wall, facilitating the entry of batch materials and forming a cold top on the surface of the molten glass; the flow hole is located at the bottom of the front wall, ensuring that only the deep molten glass that has been fully clarified and homogenized can flow out. Fixed cover plates 22 are installed on both the front and rear walls to ensure the heat preservation effect at both ends of the kiln. Through overall layout optimization, the heating system, the feeding and discharging system, and the adjustable heat preservation system are organically combined to form a complete thermal system, improving thermal efficiency from multiple dimensions.

[0091] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A glass electric melting furnace characterized by, include: A melting pool is located inside the electric melting furnace, and the inner wall of the melting pool is a supporting structure; A thermal insulation structure is provided on the outer wall of the supporting structure. The thermal insulation structure includes multiple thermal insulation cover plates, which are movably provided on the outer wall of the supporting structure. A driving structure is provided inside the electric melting furnace. The driving part of the driving structure is connected to the heat insulation cover plate and is used to drive the heat insulation cover plate to contact or separate from the outer wall of the support structure.

2. The glass electric melter of claim 1, wherein, The electric melting furnace also includes several electrode rods, which are inserted into the melting pool from the outside of the melting pool; The thermal insulation structure includes multiple fixed cover plates, all located outside the supporting structure, with one thermal insulation cover plate between two adjacent fixed cover plates; The electrode rod passes through the fixed cover plate.

3. The glass electric melter of claim 1, wherein, The driving structure includes: At least two sets of hydraulic actuators, the drive ends of which are poweredly connected to all the insulation covers on one side of the melting pool.

4. The glass electric melter of claim 3, wherein, The driving structure also includes: A connecting plate is connected to all the heat-insulating cover plates on one side of the melting pool, and the connecting plate is located on the drive end of the hydraulic actuator.

5. The glass electric melter of claim 4, wherein, The driving structure also includes: A drive rod, one end of which is disposed on the connecting plate, and the other end of which is connected to the heat insulation cover plate.

6. The glass electric melter of claim 5, wherein, The end of the drive rod is rotatably connected to the end of the insulation cover plate. The drive structure also includes a guide assembly for guiding the insulation cover plate to move and rotate along a predetermined track.

7. The glass electric melter of claim 6, wherein, The boot component includes: A pressure bar is installed inside the electric melting furnace and located in the upper half of the heat insulation cover plate. The pressure bar is located inside the melting pool, and the two ends of the pressure bar have an included angle greater than 90°. A limiting rod is installed inside the electric melting furnace and located in the lower half of the heat preservation cover plate. One end of the limiting rod is arc-shaped, and the other end is a straight structure. In this configuration, one end of the pressure rod and a straight section of the limiting rod are both horizontally positioned inside the electric melting furnace, the other end of the pressure rod is inclined toward the limiting rod, and the other section of the limiting rod is bent toward the pressure rod.

8. The glass electric melter of any one of claims 1-7, wherein, The electric melting furnace also includes: An active heat dissipation structure is installed inside the electric melting furnace and close to the front or rear wall of the melting pool.

9. The glass electric melter of any one of claims 1-7, wherein, The heat-insulating cover is made of nanoporous heat insulation board; both ends of the melting pool are equipped with driving structures.

10. The glass electric melter of any one of claims 2-7, wherein, All the electrode rods are arranged in a matrix in the middle of the melting pool; The upper half of the rear wall of the melting pool is provided with a feeding port, and the bottom of the front wall is provided with a liquid flow hole; The insulation structure is equipped with fixed cover plates on both the front and rear walls.

Images