Expansion detection device for refractory material of melting furnace
By using a combination of detection frame and a combination of multiple sensors during the furnace heating process, the thermal expansion changes of refractory materials are accurately detected, which solves the problem of difficult to control expansion changes in traditional methods, and achieves higher precision kiln parameter adjustments and longer melting kiln service life.
Patent Information
- Application Number
- CN202421294625.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-07
AI Technical Summary
During the heating process of traditional melting kilns, the thermal expansion changes of refractory materials are difficult to accurately control, resulting in structural damage and material damage, affecting the service life of the melting kilns. The existing detection methods have problems of abnormal data fluctuations.
A melting kiln refractory material expansion detection device is designed, using a detection frame and a variety of sensors (pressure sensors and distance measuring sensors). Through the detection frame, columns and tie rods are arranged along the height and length of the furnace, and a heat insulation cover is used to reduce the influence of the sensor by heat and improve detection accuracy.
Accurate detection of thermal expansion of melting kiln refractory materials is achieved, kiln parameters can be adjusted in real time, and the quality and service life of the melting kiln are improved, thereby avoiding data abnormalities in traditional methods.
Smart Images
Figure CN222882608U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of melting furnaces, and in particular relates to a melting furnace refractory material expansion detection device. Background Art
[0002] In the process of melting liquid crystal substrate glass, the high-temperature melting furnace is the core part of the production process. The intact state of its refractory materials is directly related to the quality of the glass and the service life of the melting furnace. When a new melting furnace is put into use, it must be heated and baked to prevent the refractory material itself from changing in volume due to thermal expansion. If this change cannot be properly controlled, it may cause structural damage and material breakage, resulting in a decrease in the performance of the melting furnace and affecting the service life of the melting furnace. In traditional methods, this heating process mainly relies on manual measurement and experience-based regulation, which is inefficient and has limited accuracy. In addition, although some existing patents mention the use of travel sensors to detect expansion changes, during use, because the ambient radiation temperature at the detection position exceeds the ideal working environment requirements of its sensor, abnormal data fluctuations and poor data accuracy often occur. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a melting furnace refractory material expansion detection device which is convenient for more accurate adjustment of kiln parameters, improves adjustment accuracy and further improves kiln quality.
[0004] The content of the utility model includes a detection frame, and more than two detection frames are provided. A single detection frame includes two columns arranged along the height direction of the melting furnace and two pull rods arranged along the length or width direction of the melting furnace, wherein the two ends of one column are correspondingly sleeved on one end of the two pull rods, and the two ends of the other column are correspondingly sleeved on the other end of the two pull rods, and a frame structure that can be sleeved on the melting furnace is formed between the two columns and the two pull rods; in a single detection frame, a detection component is provided at one end of the two pull rods, a heat insulation cover is provided outside the detection component, a detection port is opened on the heat insulation cover, and the detection component is arranged through the detection port toward the column located at the end of the two pull rods.
[0005] Furthermore, the detection component includes a pressure sensor and a distance sensor, the pressure sensor is used to detect pressure changes during expansion, and the distance sensor is used to detect changes in expansion amount during expansion.
[0006] Furthermore, a limit piece and a spring are provided at both ends of the pull rod, and the spring is located between the limit piece and the column. The spring located at the end of the pull rod where the detection component is provided has its two ends correspondingly abutting against the pressure sensor and the column at that end of the pull rod, and the spring located at the end of the pull rod where the detection component is not provided has its two ends correspondingly abutting against the limit piece and the column at that end of the pull rod.
[0007] Furthermore, the pressure sensor is a ring-type pressure sensor, which is sleeved on one end of the pull rod and fixed to the pull rod.
[0008] Furthermore, both ends of the pull rod are provided with threads, and the limiting member is a nut connected to the pull rod through threads.
[0009] Furthermore, the detection port includes a mounting hole and a ranging hole. The heat insulation cover is mounted on the pull rod through the mounting hole and fixed to the pull rod. The diameter or width of the mounting hole is larger than the diameter of the pull rod. One end of the spring passes through the mounting hole and abuts against the pressure sensor. The ranging hole is located below the mounting hole, and the ranging sensor is arranged toward the column through the ranging hole.
[0010] Furthermore, the distance measuring sensor is fixed on the inner wall of the heat insulation cover.
[0011] Furthermore, a mounting plate is provided inside the heat insulation cover, and the distance measuring sensor is fixed on the mounting plate.
[0012] Furthermore, it also includes a thermal imaging camera arranged toward the melting furnace.
[0013] Furthermore, there are multiple thermal imaging cameras, which are distributed on the top, bottom and sides of the melting furnace.
[0014] The beneficial effect of the utility model is that if the refractory material on the side of the melting furnace changes in volume due to thermal expansion during the heating process, a thrust will be generated on the column, causing the column to move in the direction away from the melting furnace or generate a force change in the direction away from the melting furnace. The detection component detects the displacement change and / or force change, thereby realizing the detection of the expansion amount, which is conducive to adjusting the baking furnace parameters in real time according to the melting furnace conditions during the baking furnace process to ensure the quality of the melting furnace. However, since the insulation structure of the upper and lower ends of the melting furnace is different, and the temperature of the upper and lower ends is also different during the heating process, the expansion amount of the upper and lower ends of the melting furnace will be different. By setting the detection component at one end of each of the two pull rods, the movement or force change generated at both ends of the column can be detected respectively, and by setting a heat insulation cover outside the detection component, the degree of heat influence on the detection component can be reduced, the detection accuracy can be improved, and the abnormal jump of the detection data can be avoided, thereby facilitating more accurate adjustment of the baking furnace parameters, improving the adjustment accuracy, and further improving the quality of the melting furnace after the baking furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of a melting furnace refractory material expansion detection device.
[0016] Figure 2 It is a structural schematic diagram of the detection framework of the utility model.
[0017] Figure 3The utility model is a structural schematic diagram of a heat insulation cover provided at the end of the pull rod.
[0018] Figure 4 This is a schematic diagram of the structure of the utility model after the heat insulation cover is removed from the end of the pull rod.
[0019] In the figure: 1. column; 2. pull rod; 3. pressure sensor; 4. distance sensor; 5. heat shield; 51. mounting hole; 52. distance hole; 6. limiter; 7. spring; 8. thermal imaging camera; 100. melting furnace. DETAILED DESCRIPTION
[0020] like Figure 1-Figure 4 As shown, the utility model provides a melting furnace refractory expansion detection device, including a detection frame, wherein the detection frame is provided with more than two, and a single detection frame includes two columns 1 and two tie rods 2. When in use, the two columns 1 are used to be arranged along the height direction of the melting furnace 100, and the two tie rods 2 are used to be arranged along the length or width direction of the melting furnace 100, and the two tie rods 2 are arranged at the upper end of the melting furnace 100, and the other is arranged at the lower end of the melting furnace 100. In a single detection frame, the two ends of one column 1 are correspondingly sleeved on one end of the two tie rods 2, and the two ends of the other column 1 are correspondingly sleeved on the other end of the two tie rods 2. A frame structure is formed between the two columns 1 and the two tie rods 2 in the single detection frame, and the frame structure can be sleeved on the melting furnace 100. In a single detection frame, one end of the two tie rods 2 is provided with a detection assembly, and a heat insulation cover 5 is provided outside the detection assembly, and a detection port is opened on the heat insulation cover 5, and the detection assembly is arranged toward the column 1 located at the end of the two tie rods 2 through the detection port.
[0021] If the refractory material of the melting furnace 100 changes in volume due to thermal expansion during the heating process, a thrust will be generated on the column 1, causing the column 1 to move in a direction away from the melting furnace 100 or generate a force change in a direction away from the melting furnace 100. The detection component detects the displacement change and / or force change, thereby realizing the detection of the expansion amount, which is conducive to adjusting the baking furnace parameters in real time according to the situation of the melting furnace 100 during the baking process to ensure the quality of the melting furnace 100. However, since the insulation structures of the upper and lower ends of the melting furnace 100 are different, and the temperatures of the upper and lower ends are also different during the heating process, the expansion amounts of the upper and lower ends of the melting furnace 100 will be different. By setting the detection components at one end of the two pull rods 2, the movement or force change generated at both ends of the column 1 can be detected respectively. By setting the heat insulation cover 5 outside the detection component, the degree of heat influence on the detection component can be reduced, the detection accuracy can be improved, and the abnormal jump of the detection data can be avoided, so as to facilitate more accurate adjustment of the baking furnace parameters, improve the adjustment accuracy, and further improve the quality of the melting furnace 100 after the baking furnace.
[0022] In the present invention, the detection assembly includes a pressure sensor 3 and a distance sensor 4. The pressure sensor 3 is used to detect the pressure change during expansion, and the distance sensor 4 is used to detect the change in the expansion amount during expansion. This setting method can accurately record the pressure change during the entire expansion process. Combined with the data detected by the distance sensor 4, the dynamic changes of the entire expansion can be fully recorded, which can more accurately guide the temperature rise and expansion management.
[0023] A limiter 6 and a spring 7 are provided at both ends of the pull rod 2. The spring 7 is located between the limiter 6 and the column 1. The spring 7 at the end of the pull rod 2 where the detection component is provided has its two ends correspondingly abutting against the pressure sensor 3 and the column 1 at the end of the pull rod 2. The distance sensor 4 is provided above or below the pressure sensor 3. The spring 7 at the end of the pull rod 2 where the detection component is not provided has its two ends correspondingly abutting against the limiter 6 and the column 1 at the end of the pull rod 2. This arrangement can ensure that the column 1 can be attached to the side of the melting furnace 100, so that the column 1 can effectively undergo displacement or pressure changes according to the expansion changes of the melting furnace 100, and a gap that can produce displacement changes can be left between the distance sensor 4 and the column 1, and the pressure changes can be transmitted through the spring 7, so that the pressure sensor 3 detects the pressure changes.
[0024] Preferably, the pressure sensor 3 is a ring-type pressure sensor 3, which is sleeved on one end of the tie rod 2 and fixed to the tie rod 2, that is, the position of the pressure sensor 3 on the tie rod 2 is fixed. The setting of the ring-type pressure sensor 3 can facilitate effective contact with the end of the spring 7, thereby ensuring that the pressure change can be effectively transmitted to the pressure sensor 3.
[0025] Both ends of the pull rod 2 are provided with threads, and the stopper 6 is a nut, which is connected to the pull rod 2 by threads. This arrangement can facilitate the arrangement of the spring 7, the pressure sensor 3, the heat shield 5 and the stopper 6 on the pull rod 2, and can also facilitate the adjustment of the position of the stopper 6 on the pull rod 2, thereby adjusting the preload force of the spring 7, or adapting to the installation of springs 7 of different lengths.
[0026] In the utility model, the specifications and lengths of the springs 7 provided at both ends of a single pull rod 2 are the same. Since the same springs 7 are provided at both ends, when the melting furnace 100 expands, the forces exerted on the two springs 7 are the same. Therefore, only a single end of the pull rod 2 is provided with a detection component and the monitoring requirements can be met.
[0027] The specific setting form of the detection port is: the detection port includes a mounting hole 51 and a distance measuring hole 52, the heat insulation cover 5 is sleeved on the pull rod 2 through the mounting hole 51 and fixed to the pull rod 2, the diameter or width of the mounting hole 51 is larger than the diameter of the pull rod 2, one end of the spring 7 passes through the mounting hole 51 and abuts against the pressure sensor 3, the distance measuring hole 52 is located below the mounting hole 51, and the distance measuring sensor 4 is arranged toward the column 1 through the distance measuring hole 52. This setting method ensures that the pressure sensor 3 and the distance measuring sensor 4 can perform normal detection on the basis of wrapping the pressure sensor 3 and the distance measuring sensor 4 as much as possible. Among them, the heat insulation cover 5 only needs to have a certain strength and heat resistance, and can play a certain heat insulation effect, so that the pressure sensor 3 and the distance measuring sensor 4 are in a relatively good temperature environment, and there is no need to completely isolate the heat. Its material can be selected as 310S stainless steel.
[0028] The distance sensor 4 can be fixed on the inner wall of the heat insulation cover 5, or a mounting plate is provided inside the heat insulation cover 5, and the distance sensor 4 is fixed on the mounting plate to ensure that the position of the distance sensor 4 is fixed.
[0029] The utility model also includes a thermal imaging camera 8, which is arranged toward the melting furnace 100 and is used to monitor the surface temperature of the refractory material during the heating process and to warn of abnormal conditions. When there is an abnormality, it will be monitored during its deterioration, and it can be remedied and resolved in time to avoid irreparable damage. There are multiple thermal imaging cameras 8, and the multiple thermal imaging cameras 8 are distributed on the top, bottom and side of the melting furnace 100 to monitor the melting furnace 100 in all directions. The thermal imaging camera 8 can be installed through a bracket, a cantilever or other structure, so that the thermal imaging camera 8 is arranged toward the melting furnace 100 but does not contact the melting furnace 100.
[0030] The aforementioned pressure sensor 3, distance sensor 4 and thermal imaging camera 8 are all electrically connected to the data processing unit, and the data processing unit is electrically connected to the control execution unit. Among them, the data processing unit receives data, performs calculations, analysis and storage, and then sends the analysis results to the communication unit or other systems that need these data. The control execution unit is used to receive the corresponding analysis results or data and output or execute corresponding commands and operations. The data processing unit and the control execution unit are both prior art. The data processing unit obtains the relationship between the expansion amount of the refractory material, the applied pressure and the temperature based on the data collected from each sensor and the thermal imaging camera 8. Then, the data processing unit transmits the analysis results to the control execution unit, and the control execution unit performs corresponding regulation.
[0031] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of protection of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.
[0032] One or more embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present application should be included in the protection scope of the present application.
Claims
1. A melting furnace refractory material expansion detection device, characterized in that: The invention comprises a detection frame, wherein at least two detection frames are provided, and a single detection frame comprises two columns (1) arranged along the height direction of a melting furnace (100) and two tie rods (2) arranged along the length or width direction of the melting furnace (100), wherein two ends of one column (1) are correspondingly sleeved on one end of the two tie rods (2), and two ends of the other column (1) are correspondingly sleeved on the other end of the two tie rods (2), and a frame structure which can be sleeved on the melting furnace (100) is formed between the two columns (1) and the two tie rods (2); in a single detection frame, one end of the two tie rods (2) is provided with a detection component, and a heat insulation cover (5) is provided outside the detection component, and a detection port is opened on the heat insulation cover (5), and the detection component is arranged toward the column (1) located at the end of the two tie rods (2) through the detection port.
2. The melting furnace refractory material expansion detection device according to claim 1, characterized in that: The detection component comprises a pressure sensor (3) and a distance sensor (4), wherein the pressure sensor (3) is used to detect pressure changes during expansion, and the distance sensor (4) is used to detect changes in expansion amount during expansion.
3. The melting furnace refractory material expansion detection device according to claim 2, characterized in that: A limit piece (6) and a spring (7) are provided at both ends of the pull rod (2); the spring (7) is located between the limit piece (6) and the column (1); and the spring (7) at the end of the pull rod (2) where the detection component is provided has its two ends correspondingly abutting against the pressure sensor (3) and the column (1) at that end of the pull rod (2); and the spring (7) at the end of the pull rod (2) where the detection component is not provided has its two ends correspondingly abutting against the limit piece (6) and the column (1) at that end of the pull rod (2).
4. The melting furnace refractory material expansion detection device according to claim 3, characterized in that: The pressure sensor (3) is a ring-type pressure sensor (3), which is sleeved on one end of the pull rod (2) and fixed to the pull rod (2).
5. The melting furnace refractory material expansion detection device according to claim 3 or 4, characterized in that: Both ends of the pull rod (2) are provided with threads, and the limiting member (6) is a nut connected to the pull rod (2) via threads.
6. The melting furnace refractory material expansion detection device according to claim 3 or 4, characterized in that: The detection port comprises a mounting hole (51) and a distance measuring hole (52); the heat insulation cover (5) is sleeved on the pull rod (2) through the mounting hole (51) and fixed to the pull rod (2); the diameter or width of the mounting hole (51) is greater than the diameter of the pull rod (2); one end of the spring (7) passes through the mounting hole (51) and abuts against the pressure sensor (3); the distance measuring hole (52) is located below the mounting hole (51); and the distance measuring sensor (4) is arranged toward the column (1) through the distance measuring hole (52).
7. The melting furnace refractory material expansion detection device according to claim 6, characterized in that: The distance measuring sensor (4) is fixed on the inner wall of the heat insulation cover (5).
8. The melting furnace refractory material expansion detection device according to claim 6, characterized in that: A mounting plate is provided inside the heat insulation cover (5), and the distance measuring sensor (4) is fixed on the mounting plate.
9. The melting furnace refractory material expansion detection device according to any one of claims 1 to 4, 7 and 8, characterized in that: Also included is a thermal imaging camera (8) disposed toward the melting furnace (100).
10. The melting furnace refractory material expansion detection device according to claim 9, characterized in that: There are multiple thermal imaging cameras (8), and the multiple thermal imaging cameras (8) are distributed on the top, bottom and side of the melting furnace (100).