Cooling device for front wall part of large-tonnage kiln with liquid crystal glass substrate
By installing a water-cooling unit on the chest wall of the glass kiln in front, the problem of easy erosion or leakage of the chest wall of the traditional kiln in front is solved, efficient cooling is achieved, the service life of the kiln is extended, and the quality of glass products is improved.
Patent Information
- Application Number
- CN202421823404.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The front chest wall of traditional glass kilns is susceptible to erosion or leakage, resulting in poor glass quality and shortened kiln service life.
A cooling device for the front wall part of the large-tonnage kiln of liquid crystal glass substrate is designed, and a water cooling unit is adopted, including a water cooling plate, a water inlet, a water outlet and a diversion tank. The water cooling plate is installed on the outer surface of the front chest wall of the kiln. The cooling water flows through the diversion tank to absorb and take away heat.
Effectively reduce the external temperature of the chest wall bricks in front of the kiln, prevent the return of coke material at the flue outlet, slow down the internal corrosion of the chest wall bricks in front of the kiln, extend the service life of the kiln, and ensure the cleanliness and stability of the glass liquid, and improve the quality and consistency of glass products.
Smart Images
Figure CN222948239U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of glass kilns, in particular to a cooling device for the front wall part of a large-tonnage kiln for liquid crystal glass substrates. Background Art
[0002] The thermal equipment used to melt glass batch materials in glass manufacturing, namely the glass kiln, melts the powder and clinker mixed according to the glass composition at high temperature in the kiln to clarify and form glass liquid that meets the molding requirements. This process requires not only precise temperature control, but also the stability and durability of the kiln structure to cope with long-term and high-intensity production needs.
[0003] In traditional glass kilns, the front breast wall is an important part of the kiln, and its exterior is usually covered with insulation materials to reduce heat loss and improve energy efficiency. However, with the expansion of glass production scale, especially the widespread application of large-tonnage kilns, and the extension of production cycles, traditional insulation materials have gradually exposed their limitations. Long-term high temperature and erosion of the complex atmosphere inside the kiln can easily cause erosion or fire leakage of the front breast wall. Due to the erosion of the atmosphere inside the kiln, flowing materials will be generated at the flue port, which will erode the refractory materials at the lower part of the flue port for a long time, causing damage to the front breast wall bricks or "fire leakage" phenomenon. In addition to eroding the front breast wall bricks, the flowing materials will also affect the quality of the glass and cause melting defects-poor stone formation. In general, under certain factors of the large-tonnage lead-out volume of the pool furnace, the airflow passes through the flushing of the front breast bricks of the kiln and is discharged to the outside of the kiln. During this period, the front breast wall bricks are eroded, or the coke at the flue port flows back to the front breast wall bricks and flows to the glass liquid, resulting in poor quality. At the same time, due to the "material mountain" at the bottom of the front breast wall loading port, that is, the cone structure formed by the accumulation of raw materials below the loading port, according to the process requirements, the high temperature in the front area and the high-temperature volatilization of the mixed materials, the exhaust fan suction effect will further aggravate the erosion of the front breast wall bricks. Therefore, it is necessary to use a cooling device to carry out targeted cooling of key parts such as the front breast wall to solve the above-mentioned erosion and damage phenomena. Summary of the invention
[0004] The utility model aims to provide a cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates, so as to solve the problem that the front breast wall of the existing glass kiln is prone to erosion or fire leakage.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A cooling device for the front wall portion of a large-tonnage kiln for liquid crystal glass substrates, comprising a water cooling unit;
[0007] The water cooling unit includes a water cooling plate, which is installed on the outer surface of the front breast wall of the kiln. A water cooling plate water inlet is opened at one end of the water cooling plate, and a water cooling plate water outlet is opened at the other end of the water cooling plate. A guide groove is arranged inside the water cooling plate, and the guide groove connects the water cooling plate water inlet and the water cooling plate outlet.
[0008] Furthermore, the front breast wall of the kiln is built on flame-blocking bricks.
[0009] Furthermore, the flame-blocking bricks are laid on the front pool wall bricks.
[0010] Furthermore, the front breast wall of the kiln is built with refractory bricks of different sizes, and the shape of the front breast wall of the kiln is a semicircular structure.
[0011] Furthermore, a steel structure is fixedly installed on the front breast wall of the kiln, and the water cooling plate is fixedly installed on the steel structure.
[0012] Furthermore, the shape of the water cooling plate is a vertical square, and the material of the water cooling plate is stainless steel.
[0013] Furthermore, the water inlet of the water cooling plate is connected to a water inlet pipe, and the water inlet pipe is provided with a valve and a pressure controller.
[0014] Furthermore, a flue opening is built inside the front breast wall of the kiln through flue opening bricks, and the flue opening is square.
[0015] Furthermore, the flue opening is connected to a steel flue cavity, and a smoke exhaust fan is provided on the steel flue cavity.
[0016] Furthermore, the water cooling plate is in close contact with the outer surface of the flue outlet brick.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The utility model provides a cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates. By installing a water cooling unit on the outer surface of the front chest wall of the kiln, the water inlet of the water cooling plate is connected with the water outlet of the water cooling plate through an internal guide groove. The water cooling unit of the utility model is simple in design and convenient for daily maintenance and repair. The cooling water is introduced from the water inlet of the water cooling plate, passes through the guide groove, and then discharged from the water outlet, ensuring that the cooling water can flow through the entire plate surface evenly and efficiently, thereby realizing the rapid conduction and dissipation of heat. It can effectively reduce the external temperature of the front chest wall bricks of the kiln, inhibit the reflux of coke from the flue port to the front chest wall bricks, slow down the internal erosion of the front chest wall bricks of the kiln, protect the front chest wall bricks of the kiln, and extend the service life of the kiln. At the same time, it can effectively prevent the coke from flowing to the glass liquid, ensure the cleanliness and stability of the glass liquid during the production process, and thus improve the quality and consistency of the final product. It is suitable for large-tonnage kilns in large-scale liquid crystal glass substrate production lines, such as the production process of high-end display panels such as TFT-LCD and OLED. Its efficient and stable cooling performance can effectively ensure the long-term stable operation of the kiln and improve product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 The utility model is a schematic diagram of the cooling device structure of the front wall of a large-tonnage kiln for liquid crystal glass substrates.
[0021] Figure 2 This is a schematic diagram of the water cooling plate structure of the utility model.
[0022] Among them: 1-front breast wall of the kiln, 2-flame barrier bricks, 3-front pool wall bricks, 4-flue opening, 5-water cooling plate, 6-glass liquid, 7-water inlet of the water cooling plate, 8-water outlet of the water cooling plate. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0026] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0027] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0028] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] The utility model is further described in detail below with reference to the accompanying drawings:
[0030] See also Figure 1 The utility model provides a cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates, comprising a front breast wall 1 of the kiln, flame-blocking bricks 2, front pool wall bricks 3, a flue port 4 and a water cooling unit.
[0031] The front breast wall 1 of the kiln is built as the front barrier of the kiln with refractory bricks of different sizes, ensuring its durability and thermal insulation performance in high temperature environments. The front breast wall 1 of the kiln is in the shape of a semicircular structure, which not only optimizes the airflow distribution, but also enhances the stability of the structure. The front breast wall 1 of the kiln is built on the flame-blocking bricks 2, and the flame-blocking bricks 2 are built on the front pool wall bricks 3, as an additional protective layer, further blocking the direct erosion of the flame and high-temperature airflow to the front breast wall 1 of the kiln. The inside of the front breast wall 1 of the kiln is built with a flue opening 4 through the flue opening bricks. The flue opening 4 is square, which is convenient for the smooth passage of flue gas. The flue opening 4 is connected to the steel flue cavity, and a smoke exhaust fan is installed on the steel flue cavity. The smoke exhaust fan is used to discharge the kiln air pressure to the outside of the factory building to ensure the air pressure balance in the kiln and the effective discharge of harmful gases.
[0032] like Figure 2 As shown, the water cooling unit includes a water cooling plate 5, a water cooling plate water inlet 7 and a water cooling plate water outlet 8. The water cooling plate 5 is installed on the outer surface of the front breast wall 1 of the kiln, and a steel structure is fixedly installed on the front breast wall 1 of the kiln. The water cooling plate 5 is fixedly installed on the steel structure, and the water cooling plate 5 is close to the outer surface of the bricks at the lower part of the flue port. The shape of the water cooling plate 5 is vertical, and the material is stainless steel, which is convenient for installation and maintenance. At the same time, it is directly attached to the high-temperature area, ensuring good heat conduction efficiency and achieving rapid and effective local cooling. A water cooling plate water inlet 7 is provided at one end of the water cooling plate 5, and a water cooling plate water outlet 8 is provided at the other end of the water cooling plate 5. A guide groove is provided inside the water cooling plate 5, and the guide groove connects the water cooling plate water inlet 7 and the water cooling plate water outlet 8. The water cooling plate water inlet 7 is connected to a water inlet pipe, and a valve and a pressure controller are provided on the water inlet pipe. The valve and the pressure controller can adjust the water flow and pressure according to the actual cooling demand to achieve precise temperature control. The water inlet 7 of the water cooling plate is located at the upper part of the water cooling plate 5, and the water outlet 8 of the water cooling plate is located at the lower part of the water cooling plate 5. The cooling water flows from top to bottom, and the water quality requirement is 2M European pure water. Using 2M European pure water as the cooling medium reduces the corrosion of water quality to the equipment, while recycling water resources, reducing energy consumption and emissions. 2M European pure water is introduced through the water inlet 7 of the water cooling plate, and the heat around the front breast wall and the flue port of the kiln is taken away by the circulation of water from top to bottom. The heated water is discharged from the water outlet 8 of the water cooling plate, which can effectively reduce the local temperature and prevent structural damage caused by thermal stress. At the same time, it prevents the coke flow from flowing to the glass liquid 6, ensuring the cleanliness and stability of the glass liquid 6 during the production process.
[0033] The working principle of the cooling device for the front wall of the large-tonnage kiln for liquid crystal glass substrates of the utility model is as follows:
[0034] During the production process of liquid crystal glass substrates, a large amount of high-temperature flue gas is generated inside the kiln. When these flue gases are discharged through the flue port 4, they carry a large amount of heat to the inside of the front breast wall 1 of the kiln. In order to avoid structural damage caused by the excessive temperature of the front breast wall 1 of the kiln, the utility model uses a water cooling unit to locally cool the front breast wall 1 of the kiln and the surrounding of the flue port 4. The cooling water circulates through the guide groove inside the water cooling plate 5, absorbs and takes away the heat, thereby maintaining the stability and safety of the front breast wall 1 of the kiln and improving the production quality of the glass liquid 6.
[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates, characterized in that: Including water cooling unit; The water cooling unit comprises a water cooling plate (5), wherein the water cooling plate (5) is mounted on the outer surface of the front breast wall (1) of the kiln, a water cooling plate water inlet (7) is provided at one end of the water cooling plate (5), a water cooling plate water outlet (8) is provided at the other end of the water cooling plate (5), a guide groove is provided inside the water cooling plate (5), and the guide groove connects the water cooling plate water inlet (7) and the water cooling plate water outlet (8).
2. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1 is characterized in that: The kiln front breast wall (1) is built on the flame-blocking bricks (2).
3. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 2 is characterized in that: The flame-blocking bricks (2) are laid on the front pool wall bricks (3).
4. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1 is characterized in that: The kiln front breast wall (1) is built with refractory bricks of different sizes, and the shape of the kiln front breast wall (1) is a semicircular structure.
5. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1 is characterized in that: A steel structure is fixedly mounted on the front breast wall (1) of the kiln, and the water cooling plate (5) is fixedly mounted on the steel structure.
6. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1 is characterized in that: The shape of the water cooling plate (5) is a vertical square, and the material of the water cooling plate (5) is stainless steel.
7. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1 is characterized in that: The water inlet (7) of the water cooling plate is connected to a water inlet pipeline, and a valve and a pressure controller are arranged on the water inlet pipeline.
8. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1 is characterized in that: A flue opening (4) is built inside the front breast wall (1) of the kiln through flue opening bricks, and the flue opening (4) is square.
9. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 8 is characterized in that: The flue opening (4) is connected to a steel flue cavity, and a smoke exhaust fan is arranged on the steel flue cavity.
10. The cooling device for the front wall of a large-tonnage kiln for liquid crystal glass substrates according to claim 1, characterized in that: The water cooling plate (5) is in close contact with the outer surface of the flue outlet brick.