Cleaning device for vertical flue of liquid crystal substrate glass tank furnace

Abstract

The utility model discloses a cleaning device for a vertical flue of a liquid crystal substrate glass tank furnace. The cleaning device comprises a cleaning air hammer and a cleaning port flashboard, a vertical flue cleaning opening is connected to the side wall of the vertical flue body, the cleaning opening flashboard is detachably installed on the vertical flue cleaning opening, and the cleaning air hammer is fixedly installed on the cleaning opening flashboard. According to the utility model, the vertical flue is knocked by the air hammer, and coked materials on the vertical flue are shaken off to achieve the cleaning effect, so that the flue can be effectively prevented from being blocked, and the furnace pressure is stabilized. Not only are the directness and pertinence of cleaning operation ensured, but also the excessive interference on the main body structure of the flue is avoided, and the safety and high efficiency of the cleaning process are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid crystal substrate glass, in particular to a liquid crystal substrate glass tank furnace vertical flue cleaning device. Background Art

[0002] In the complex process of substrate glass production, the pool furnace is one of the core equipment, and its stable operation is directly related to product quality and production efficiency. The flue gas generated during the combustion process of the pool furnace not only contains a large amount of heat energy, but also contains impurities such as dust and incompletely burned carbon particles. These flue gases must be effectively treated before discharge to meet environmental protection standards. The vertical flue is the key part connecting the horizontal flue and the flue gas treatment system. Its unobstructed operation is crucial to ensure the efficiency and stability of the entire flue gas treatment system.

[0003] However, due to its special long strip structure and the use of urea spray guns, the vertical flue faces a significant problem: the urea spray gun lowers the local temperature during the spraying process, forming a low-temperature area. This low-temperature area becomes an ideal place for dust and unburned materials to coke. As time goes by, the coke accumulates, which not only increases the resistance of flue gas flow, but also may cause furnace pressure fluctuations, affecting the uniformity and stability of the temperature field in the furnace, and thus adversely affecting the production quality of substrate glass.

[0004] The existing vertical flue cleaning method is to make a cleaning port at the top of the vertical flue and manually clean it with a steel chisel regularly. Although the traditional manual cleaning method can alleviate the coking problem to a certain extent, the cleaning cycle is long during the cleaning process, and it is difficult to deal with the rapid accumulation of coking in time; the furnace conditions need to be paused or adjusted during cleaning, resulting in large fluctuations in furnace pressure, affecting production continuity and product quality, which is not conducive to process stability and is labor-intensive. Therefore, it is of positive significance to find a device for automatic cleaning of vertical flues. Summary of the invention

[0005] The utility model aims to provide a liquid crystal substrate glass pool furnace vertical flue cleaning device to solve the problem of poor process stability caused by large furnace pressure fluctuations in the existing manual cleaning process.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A liquid crystal substrate glass tank furnace vertical flue cleaning device, comprising a cleaning air hammer and a cleaning port gate;

[0008] A vertical flue cleaning port is connected to the side wall of the vertical flue body, the cleaning port gate is detachably mounted on the vertical flue cleaning port, and the cleaning air hammer is fixedly mounted on the cleaning port gate.

[0009] Furthermore, the vertical flue cleaning port is installed on the side wall of the vertical flue body by welding.

[0010] Further, one end of the vertical flue duct body is connected to the horizontal flue duct, and the other end of the vertical flue duct body is connected to the flue gas treatment system.

[0011] Further, a urea spray gun is inserted into the side wall of the vertical flue duct body.

[0012] Further, the urea spray gun is installed on the opposite side of the cleaning opening of the vertical flue duct.

[0013] Further, the insertion position of the urea spray gun is higher than the position of the cleaning opening of the vertical flue duct.

[0014] Further, the urea spray gun is filled with urea solution.

[0015] Further, a vertical flue duct insulation layer is wrapped around the vertical flue duct body.

[0016] Further, the cleaning pneumatic hammer is connected to an air compressor.

[0017] Further, a pressure gauge is installed between the cleaning pneumatic hammer and the air compressor.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a cleaning device for a vertical flue duct of a liquid crystal substrate glass tank furnace. By installing a cleaning opening on the side wall of the vertical flue duct body, the cleaning pneumatic hammer is fixedly installed on the cleaning gate plate that can be detachably installed at the cleaning opening of the vertical flue duct. The design of the cleaning opening of the vertical flue duct fully considers the sealing performance and maintainability, ensuring that the sealing state of the flue duct can be quickly restored after the cleaning operation is completed, and preventing the leakage of heat and flue gas. The cleaning pneumatic hammer can accurately align with the area on the inner wall of the flue duct where coking substances are likely to form and perform high-efficiency knocking, and shake off the stubborn coking substances through physical impact, so as to achieve in-depth cleaning of the flue duct. The utility model shakes off the coking substances on the vertical flue duct by knocking with the pneumatic hammer to achieve the cleaning effect, which can effectively prevent the flue duct from being blocked and stabilize the furnace pressure. It not only ensures the directness and pertinence of the cleaning operation, but also avoids excessive interference with the main structure of the flue duct, ensuring the safety and efficiency of the cleaning process.

[0020] Further, a vertical flue duct insulation layer is tightly wrapped outside the vertical flue duct body, which can effectively reduce heat dissipation, thereby reducing the generation of coking substances. It not only improves the energy utilization efficiency, but also extends the service life of the vertical flue duct. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 It is the front view of the vertical flue cleaning device of the liquid crystal substrate glass tank furnace of the present invention.

[0023] Figure 2 It is the top view of the vertical flue cleaning device of the liquid crystal substrate glass tank furnace of the present invention.

[0024] Wherein: 1 - vertical flue body, 2 - vertical flue insulation layer, 3 - urea spray gun, 4 - vertical flue cleaning port, 5 - cleaning pneumatic hammer, 6 - cleaning port gate. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0029] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0030] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The following further describes the present utility model in detail with reference to the drawings:

[0032] See Figure 1 and Figure 2 , a vertical flue cleaning device for a liquid crystal substrate glass tank furnace of the present utility model includes a vertical flue insulation layer 2, a urea spray gun 3, a vertical flue cleaning port 4, a cleaning pneumatic hammer 5, and a cleaning port gate 6.

[0033] The vertical flue body 1 is the main structure for flue gas transmission. One end of the vertical flue body 1 is connected to the horizontal flue to receive the flue gas from the tank furnace, and the other end of the vertical flue body 1 is connected to the flue gas treatment system for subsequent purification treatment. A vertical flue cleaning port 4 is connected to the side wall of the vertical flue body 1, and the vertical flue cleaning port 4 is installed on the vertical flue body 1 by welding. The cleaning port gate 6 is detachably installed on the vertical flue cleaning port 4. The detachable cleaning port gate 6 is usually in a closed state to ensure the sealing of the vertical flue cleaning port 4. When cleaning is required, the internal situation of the vertical flue can also be checked by opening the cleaning port gate 6.

[0034] The vertical flue duct body 1 is wrapped with a vertical flue duct thermal insulation layer 2. The vertical flue duct thermal insulation layer 2 uses thermal insulation materials to wrap the entire vertical flue duct body 1. High-efficiency thermal insulation materials such as ceramic fiber and aerogel are adopted to effectively reduce heat loss, insulate the vertical flue duct body 1, and thus reduce the generation of coking substances.

[0035] A urea spray gun 3 is installed on the side wall of the vertical flue duct body 1. The urea spray gun 3 is inserted into the vertical flue duct body 1 and is installed on the opposite side of the vertical flue duct cleaning port 4. The insertion position is slightly higher than the cleaning position of the vertical flue duct cleaning port 4. The urea spray gun 3 is filled with urea solution, and spraying the urea solution prepares for subsequent flue gas treatment. The urea solution decomposes at high temperature to produce ammonia gas, and the ammonia gas reacts with nitrogen oxides in the flue gas to generate harmless nitrogen gas and water vapor, providing favorable conditions for subsequent flue gas treatment, helping to reduce pollutant emissions, and meeting environmental protection requirements.

[0036] The cleaning pneumatic hammer 5 is fixedly installed on the cleaning port gate 6 of the vertical flue duct cleaning port 4. The cleaning pneumatic hammer 5 is connected to an air compressor, and a pressure gauge is installed between the cleaning pneumatic hammer 5 and the air compressor. Compressed air is introduced into the cleaning pneumatic hammer 5 through the air compressor to provide power. When the pneumatic hammer works, the impact force generated by the compressed air is used to strike the vertical flue duct in an impact manner. The striking force and the striking interval time can be controlled by adjusting the compressed air pressure, enabling precise control of the cleaning strength, ensuring the cleaning effect while reducing damage to the flue duct structure. The coking substances attached to the flue duct are shaken off by the knocking vibration of the cleaning pneumatic hammer 5 and fall into the vertical flue duct blind gut to achieve the purpose of automatic cleaning.

[0037] The working method of the vertical flue duct cleaning device for the liquid crystal substrate glass tank furnace of the present utility model:

[0038] Turn on the urea spray gun 3 and spray an appropriate amount of urea solution into the vertical flue duct to prepare for subsequent cleaning operations.

[0039] Connect the cleaning pneumatic hammer 5 to the air compressor and start it. According to the adhesion situation of the coking substances, adjust the pressure of the compressed air and the knocking interval time to knock and clean the vertical flue duct. During the cleaning process, the cleaning effect can be regularly checked, and if necessary, the knocking frequency of the cleaning pneumatic hammer 5 can be adjusted.

[0040] After the cleaning is completed, turn off the air compressor and restore the normal operation of the system.

[0041] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A liquid crystal substrate glass pool furnace vertical flue cleaning device, characterized in that: It comprises a cleaning air hammer (5) and a cleaning port gate (6); A vertical flue cleaning port (4) is connected to the side wall of the vertical flue body (1); the cleaning port gate (6) is detachably mounted on the vertical flue cleaning port (4); and the cleaning air hammer (5) is fixedly mounted on the cleaning port gate (6).

2. A liquid crystal substrate glass tank furnace vertical flue cleaning device according to claim 1, characterized in that: The vertical flue cleaning port (4) is mounted on the side wall of the vertical flue body (1) by welding.

3. The liquid crystal substrate glass tank furnace vertical flue cleaning device according to claim 1, characterized in that: One end of the vertical flue body (1) is connected to the horizontal flue, and the other end of the vertical flue body (1) is connected to the flue gas treatment system.

4. The device for cleaning the vertical flue of a liquid crystal substrate glass tank furnace according to claim 1, characterized in that: A urea spray gun (3) is inserted into the side wall of the vertical flue body (1).

5. A liquid crystal substrate glass tank furnace vertical flue cleaning device according to claim 4, characterized in that: The urea spray gun (3) is installed on the opposite side of the vertical flue cleaning port (4).

6. A liquid crystal substrate glass tank furnace vertical flue cleaning device according to claim 4, characterized in that: The insertion position of the urea spray gun (3) is higher than the position of the vertical flue cleaning port (4).

7. A liquid crystal substrate glass tank furnace vertical flue cleaning device according to claim 4, characterized in that: The urea spray gun (3) is filled with urea solution.

8. The device for cleaning the vertical flue of a liquid crystal substrate glass tank furnace according to claim 1, characterized in that: The vertical flue body (1) is wrapped with a vertical flue insulation layer (2).

9. The device for cleaning the vertical flue of a liquid crystal substrate glass tank furnace according to claim 1, characterized in that: The cleaning air hammer (5) is connected to an air compressor.

10. A liquid crystal substrate glass tank furnace vertical flue cleaning device according to claim 9, characterized in that: A pressure gauge is installed between the cleaning air hammer (5) and the air compressor.

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